Troubleshooting guide

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TS310 MOD4A Digital Controller

Users Guides

Document No. 93-2952

April 1998

Rev. 1

La Marque, Texas

This manual contains outdated information

(part numbers, addresses, and so on) and is

provided on CustomerNet as a courtesy to

owners of TS310 systems.

Summary of content (348 pages)

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TS310 MOD4A Digital Controller Users Guides Document No. 93-2952 April 1998 Rev. 1 This manual contains outdated information (part numbers, addresses, and so on) and is provided on CustomerNet as a courtesy to owners of TS310 systems.
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iii Copyright Copyright 1998 by TRICONEX La Marque, Texas, U.S.A. All rights reserved. No part of this work covered by the copyright hereon may be reproduced or copied in any form or by any means--graphic, electronic, or mechanical--without first receiving the written permission of TRICONEX, La Marque, Texas, U.S.A. Printed in U.S.A. ModBus is a registered trademark of Modicon, Inc.
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iv TS310 Users Guides Revision History Rev. C July 1991 Changes to all parts except MODBUS® Rev. D September 1991 Technical changes to: Installation Configuration Operation Maintenance: Sections 3, 4, 6, and 7; and Troubleshooting Guide: Section 2. Rev. E November 1993 Replaced P/N Manual 310 4A GEN2 with P/N 93-2952. Replaced pages i through xi with pages i through x. Rev. F May 1995 Added Triconex Offices to front matter and changed TRI-SEN to Triconex on pages i through xiii. Rev.
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v Warnings! READ THIS ENTIRE MANUAL AND ALL RELATED PUBLICATIONS PERTAINING TO THE WORK TO BE PERFORMED BEFORE INSTALLING, OPERATING, OR SERVICING THIS EQUIPMENT. • Practice all plant and safety codes and standards. Failure to follow instructions can result in personal injury and/or property damage. • To prevent ignition of hazardous atmosphere, do not remove covers of Class I Division I (explosion-proof) units with power applied. • All servicing should be performed by qualified technicians.
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vi TS310 Users Guides Disclaimer Because of the variety of uses for this equipment, the user of and those responsible for applying this equipment must satisfy themselves as to the acceptability of each application and the use of the equipment. The illustrations in this manual are intended solely to illustrate the text of this manual.
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vii Electrostatic Discharge Awareness Electrostatic discharge can damage or destroy electronic components, assemblies, or systems. 1. Keep the following materials away from components and work area: • Styrofoam® (polystyrene): cups, packing material • cellophane: cigarette packages or candy wrappers • vinyl: books or folders • plastic: cups, bottles, ash trays 2. Avoid synthetic clothing. Instead wear cotton or cotton-blend materials. Keep components away from elastics, clothing, and hair. 3.
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viii TS310 Users Guides Triconex Offices WORLD HEADQUARTERS MANUFACTURING LOCATIONS Triconex Corporation TMR Products & Systems TRISEN Products & Systems 15091 Bake Parkway Irvine, CA 92718 Phone: +1-714-699-2100 Fax: +1-714-768-6601 15091 Bake Parkway Irvine, CA 92718 Phone: +1-714-699-2100 Fax: +1-714-768-6601 4916 FM 1765 La Marque, TX 77568 Phone: +1-409-935-3555 Fax: +1-409-935-3881 AMERICAS/MIDDLE EAST SALES & SERVICE OFFICES Customer Business Center Western Region Latin America 4916 FM 1
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Customer Response Receive a FREE GIFT by completing this form and returning it to: Marketing, TRISEN Products FAX +1-409-935-3881 Phone +1-409-935-3555 800-950-8718 (in U.S.) All end-users of Triconex TRISEN products are encouraged to register with the factory, regardless of the origin of the product. This will ensure that all future product and maintenance correspondence, if any, reaches the installed location. Please complete the information below: Company Name Contact Name P. O.
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Place Stamp Here Marketing, TRISEN Products 4916 FM 1765 La Marque, TX 77568 U.S.A.
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Contents xi Contents - TS310 Documentation Set Tabs Installation, Configuration, Operation, Maintenance ..............Text No. 4933-0014 Troubleshooting ........................................................................Text No. 4933-0017 ModBus® ....................................................................................Text No. 4933-0018 ACON (Auto-Configuration).......................................................Text No. 4933-0019 Extraction & Admission Operation........................
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TS310 MOD4A Digital Controller Installation, Configuration, Operation, Maintenance Guide Document No. 4933-0014 April 1998 Rev.
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iii Copyright Copyright 1998 by TRICONEX La Marque, Texas, U.S.A. All rights reserved. No part of this work covered by the copyright hereon may be reproduced or copied in any form or by any means--graphic, electronic, or mechanical--without first receiving the written permission of TRICONEX, La Marque, Texas, U.S.A. Printed in U.S.A. TRICONEX reserves the right to make improvements in the design, construction, and appearance of its products without prior notice. April 1998 Rev.
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iv TS310 Installation Configuration Operation Maintenance Revision History Rev. 0 March 1990 Initial issue. Rev. A September 1990 General technical and editorial revision, and incorporated narrative discussion of new software. Rev. B April 1991 Technical revisions to Installation, Configuration, Operations, Maintenance machine data in Chapter 9, part numbers in Chapter 7, and Channel 144 in Chapters 9 and 2. Rev. C July 1991 General editorial revisions.
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Contents ix Contents COPYRIGHT.................................................................................................................................... III REVISION HISTORY......................................................................................................................IV Contents................................................................................................................... ix ILLUSTRATIONS ................................................................
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x TS310 Installation Configuration Operation Maintenance 4.5.1 TS310 Contact Input Wiring.............................................................................................. 32 4.5.2 TS310 Contact Output Wiring........................................................................................... 33 4.5.3 TS310 to PX102 Transmitter Wiring ................................................................................ 34 4.5.4 TS310 Analog Input to 4 to 20 mA External Power Wiring ...........
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Contents xi CH 66 Local Load Limit.............................................................................................................74 CH 67 Local Setpoint Ramp Rate * Configuration Required ....................................................74 CH 68 KW Override Reset .........................................................................................................74 CH 69 Parallel Isochronous Delay.........................................................................................
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xii TS310 Installation Configuration Operation Maintenance 10.13 START, STOP, IDLE/RUN (CH 36, 80, 82)....................................................................... 120 10.14 STROKING THE ACTUATOR (CH 62, 63)...................................................................... 121 10.15 3RD PID CONTROL, CHANNEL 86, CONFIGURATION WORD 17............................ 122 10.16 SYNCHRONOUS GENERATOR, CHANNEL 87, CONFIGURATION WORD 18 (ALSO CHS 66, 68, 70, 71).........................................
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Contents xiii Illustrations Figure 1. TS310 Front View ..................................................................................................................6 Figure 2. TS310-02 Software Block Diagram .......................................................................................8 Figure 3. Hardware Interconnections ..................................................................................................13 Figure 4. TS310 Component Layout.......................................
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xiv TS310 Installation Configuration Operation Maintenance Foreword - Important TS310 Tips The TS310 is different from conventional prime-mover controls. Its micro-processor design and user configurable features offer capabilities far beyond conventional electronic controllers. To ensure that your TS310 application is a success we offer the following suggestions: • Review your requirements with a Triconex application engineer and have Triconex assist in configuring and documenting your unit.
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Chapter 1 - Introduction 1 Chapter 1 - Introduction This manual describes the TRISEN 310 Digital Controller. About This Manual As its name implies, this manual is a guide to familiarize the user with how to install it, how to configure it and how to operate it. In depth user training is available from Triconex. The material in this manual is arranged according to function; such as startup sequence, cascade control, limits, and so on.
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2 TS310 Installation Configuration Operation Maintenance • Chapter 10 - Configuration - Expanded Discussion This chapter explains in detail the various channels of the TS310 and how to configure them. The information in this chapter is arranged alphabetically by operating variable type; e.g., alarms, cascade control; through to trips, etc. By reading this manual, you will be able to: • Understand the components of the TS310 Digital Control System.
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Chapter 1 - Introduction 3 Reference Documents • TS310 Troubleshooting Guide • TS310 ModBus Guide • TS310 Auto-Configuration Guide • TS310 Extraction & Admission Operations Guide • TS310 Synchronous Generator Operations Guide April 1998 Rev.
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Chapter 2 - General Description 5 Chapter 2 - General Description The versatile TRISEN TS310 Digital Controller is designed using the latest computer techniques that relate uniquely to rotating equipment. This may sound imposing, yet the TS310 remains simple to apply and simple to operate. Computer techniques eliminate calibration, create flexibility for applications, and provide a simple, operator-friendly interface. The TS310 controller is totally digital in all respects.
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6 TS310 Installation Configuration Operation Maintenance 2.1 General Arrangement NEMA 4 ENCLOSURE 8 DIGIT DISPLAY 8.8.8.8.8.8.8.8 ) ) ) ) 4 INDICATOR ARROWS REMOVABLE PLASTIC TAG STOP START TRISEN 7 8 9 F2 4 5 6 F3 1 2 3 CLEAR 0 • ENTER F1 BEZEL VINYL KEYBOARD WITH TOUCHPADS TS310 310-01 Figure 1. TS310 Front View Front Panel The TS310 keyboard is used to START and STOP the turbine, and to Á RAISE and Â LOWER the speed.
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Chapter 2 - General Description 2.2 7 Software Programs TS310 Digital Controller has been continuously improved over time.
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8 TS310 Installation Configuration Operation Maintenance TUNING PICKUP INPUTS FAILSAFE SPEED INPUTS SPEED CONTROL START / STOP IDLE / RUN DIGITAL I/O OUTPUT NO. 1 SPEED REFERENCE ANALOG OUTPUTS RAISE / LOWER OR OUTPUT NO.
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Chapter 2 - General Description 9 TS310 Upgrades 2.3 TS310 product improvements are listed below. Features not listed as improvements are included in all versions of the TS310 controller.
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10 TS310 Installation Configuration Operation Maintenance MODEL EPROMS ANALOG INPUTS Display Only (Sq. Root) 2nd PID Meas. (Sq. Root) 3rd PID Meas. (Sq. Root) Nozzle Valve 3rd PID Remote Set Inverse Load Limit Inverse 3rd PID Remote Set External 3rd PID Limiting Function Meas.
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Chapter 2 - General Description 11 Main Board Upgrades • New board is multi-layered, versus a single layer on the old board. • Voltage and surge protection on the speed input circuits. • Voltage and surge protection on the analog input circuits. • 1% resistors are used instead of 10%. • Analog ground is separated from digital ground. • Analog inputs are self-calibrating and do not require calibration. Power Supply Upgrades • Constantly loaded to improve efficiency and regulation.
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Chapter 3 - Hardware 13 Chapter 3 - Hardware Opening the door of the TS310 reveals the Main Board on the back of the door. The TS310 hardware interconnects as shown below. DISPLAY POWER SUPPLY TS330 MAIN BOARD EXTERNAL POWER KEYBOARD DIGITAL IN / OUT COMMUNICATIONS OUTPUTS TO CONTROL VALVE TERMINATION PANEL ANALOG INPUTS MAGNETIC SPEED PICKUPS Figure 3. Hardware Interconnections A 9-pin plug-in connector supplies power to the Main Board from the Power Supply.
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TS310 Installation Configuration Operation Maintenance E3 D51 C1 C4 C3 C6 CR1 C2 Q3 U5 C5 POWER SUPPLY ASSEMBLY CR2 R41 R42 R43 R44 R45 R46 CR3 CR4 C82 + CR5 U25 C96 U41 U7 CR6 POWER TERMINALS - R1 U8 U1 CHASSIS GROUND TERMINAL TP1 TP2 RN7 U26 C8 1 C84 R11 U9 R13 U19 R12 +5V RN9 C73 C83 U34 INSTRUMENT GROUND TERMINAL U2 C74 C76 C85 DGN C98 U42 R2 C7 R51 C97 G R47 R48 R49 CR29 R50 CR30 U6 H R17 ASSY 87-5678 N MAIN CIRCUIT BOARD C94 U20 U27
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Chapter 3 - Hardware 15 TS310 Main Board 3.
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16 TS310 Installation Configuration Operation Maintenance TS310 Power Supply 3.2 INST GND N G - H + U F S E 310-5 Figure 6. TS310 Back View Showing Power Supply The Power Supply is located in the upper half of the back of the TS310 cabinet. Power consumption is less than 10 watts. In-rush currents at power-up are: • 0.25 amps for 110 V source; • 2.5 amps for 24 V source; and • 5 amps for 10 V source. Number 14 AWG wire should be used for power source connections.
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Chapter 3 - Hardware 17 For battery back-up installations, a special TS310 power supply operates on 12 VDC furnished by the battery back-up option. The TS310 12 VDC power supply is rated at 10 to 40 VDC input. A 5 amp slow-blow fuse is furnished with this power supply. FOR AC INPUT SUPPLIES ONLY CONVERTER OUTPUT + DC INPUT REG AC INPUT BRIDGE RECTIFIER RFI FILTER STARTING CIRCUIT CONTROL CIRCUIT BASE DRIVE CONVERTER TRANSISTOR + V1 +5-10 VDC (+/-0.05V) - COM + V2 +15 VDC (+/-0.
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18 TS310 Installation Configuration Operation Maintenance 3.3 Termination Panel The Termination Panel is located in the lower half of the back of the TS310 cabinet. Forty terminals accommodate all I/O. Eight sockets, M1 through M8, accommodate the digital I/O relays. Fuses F1 through F8 protect the eight digital I/O circuits external to the TS310. These are 5 amp plug-in picofuses Part Number 9274-0000. F10 protects the +15 VDC circuit (terminal 20). This is a 1/2 amp picofuse Part Number 9250-0000.
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Chapter 3 - Hardware 19 RTDs and Thermocouples These require external conditioning. Digital Inputs and Outputs These circuits must use the appropriate I/O MODULE (M1 through M8) as configured. 3.4 Calibration of Analog Outputs (Channels 62, 63, 64, 65) No. 1 and No. 2 analog outputs can be calibrated within a range of 0 to 20 mA or, by employing jumpers which multiply by ten, within a range of 0 to 200 mA (see jumpers in Figure 9). Schedule OUTPUT NO. 1 OUTPUT NO.
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Chapter 4 - Installation & Wiring 21 Chapter 4 - Installation & Wiring The discussion in this chapter is not theoretical. All recommendations listed here are the result of field experience. If they are followed, a good installation will result. If they are not followed, operating problems may occur. The TRISEN TS310 digital controller is a high performance, high speed, sensitive control system. As such, it requires and deserves careful installation.
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22 TS310 Installation Configuration Operation Maintenance The TS310 should be mounted to rigid structures only so that the unit will not sway when the keyboard is operated. Lighting The liquid crystal display is difficult to read in low light, so avoid dark areas; but do not mount the TS310 in direct sunlight. If any of these items is doubtful, consider another location.
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Chapter 4 - Installation & Wiring 23 Figure 10. Surface Mounting Dimensions, Front View April 1998 Rev.
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24 TS310 Installation Configuration Operation Maintenance 12.75" (324mm) 1" CONDUIT HUB 2.0" (51mm) 8.0" (203mm) 310-34 5.56" (141mm) Right Side View Mounting Hole Pattern Figure 11. Surface Mounting Dimensions, Side View and Mounting Holes April 1998 Rev.
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Chapter 4 - Installation & Wiring 25 0.281" (7.14mm) TYP. 4 PL 8.8.8.8.8.8.8.8. ) ) ) ) 16.00" 15.00" (406.4mm) (381.0mm) STOP F1 7 8 9 START F2 4 5 6 F3 1 2 3 CLEAR 0 • ENTER TRISEN TS310 310-31 6.00" (152.4mm) 13.50" (342.9mm) 14.50" (368.3mm) Figure 12. Flush Mounting Dimensions, Front View April 1998 Rev.
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26 TS310 Installation Configuration Operation Maintenance CUT OUT 15.00" (381.0mm) 12.5" (317.5mm) 3.00" (76.2mm) 0.435" (11.05mm) 14.00" 15.00" (355.6mm) (381.0mm) 0.281" (7.14mm) TYP 4 PL 13.5" (342.9mm) 6.12" (155.5mm) 310-32 Right Side View Mounting Hole Pattern Figure 13. Flush Mounting Dimensions, Side View and Mounting Holes April 1998 Rev.
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Chapter 4 - Installation & Wiring 4.2 27 Wiring - General Failure to use the following wiring recommendations will result in instability of control and/or intermittent shutdown from random electrical noise which can and will enter the TS310 if these procedures are not followed. • Keep all wire runs as short and direct as possible. Long wire runs are vulnerable to picking up stray electrical noise.
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28 TS310 Installation Configuration Operation Maintenance Grounding Grounding complex systems to minimize electro-magnetic interference (EMI) is a complex task. Guidelines are difficult to develop since all systems have different operating characteristics, are configured differently, and are exposed to different environments. A basic TS310 control system can be viewed as a central system with extensions, as shown, very simply, in Figure 14.
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Chapter 4 - Installation & Wiring 29 The central element (the TS310) of this system should be grounded as though it were an isolated system. TRISEN control systems involve relatively low frequencies; therefore, a single-point tree or star grounding scheme is used. The ground node would be at the central element (TS310) with one connection (the safety ground) made to the structure. The transducers should be floated; i.e., not grounded at the transducer end.
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30 TS310 Installation Configuration Operation Maintenance 4.3 I/O Relay Module Wiring Solid-state output relays are subject to small levels of current leakage. While this presents no problem when used with normal loads such as coils, solenoids, hard relays or motors, the leakage is significant for applications which interface with high impedance inputs such as alarm circuits, computer inputs or solid-state logic.
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Chapter 4 - Installation & Wiring 31 TS310 Termination Panel Wiring 4.4 Refer to Figure 7 and wire the termination panel as follows: 1 No. 1 PICKUP (+) 21 No. 2 PICKUP (-) 2 No. 1 PICKUP (-) 22 No. 2 PICKUP (+) 3 PICKUP SHIELD 23 PICKUP SHIELD 4 RS422 XMIT B (-) 24 No. 1 CONTACT (-) 5 RS422 XMIT A (+) 25 No. 1 CONTACT (+) 6 RS422 REC B (-) 26 No. 2 CONTACT (-) 7 RS422 REC A (+) 27 No. 2 CONTACT (+) 8 No. 1 ANALOG IN (-) 28 No. 3 CONTACT (-) 9 No. 1 ANALOG IN (+) 29 No.
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32 TS310 Installation Configuration Operation Maintenance 4.5 Typical Field Wiring Installation should carefully follow recommendations listed in this chapter. It is extremely important to avoid installation mistakes. It is equally important to avoid improper grounding and shielding practices as outlined in this chapter. TS310 Contact Input Wiring 4.5.1 Power requirements depend upon input module used. Module IDC5 IAC5 IAC5A NOTE: Load 10-32 VAC/DC 90-140 VAC/DC 180-280 VAC/DC Amps 25 mA 11 mA 6.
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Chapter 4 - Installation & Wiring 4.5.2 33 TS310 Contact Output Wiring Power requirements depend on load and output module used: Module 200 VDC/VAC 5/60 VDC 12/140 VAC 24/280 VAC 5/200 VDC Load DRY5 ODC5 OAC5 OAC5A ODC5A N.O. OR N.C. - + + NOTE - 310-14 NOTE: Omit diode if circuit is AC powered. Figure 19. Contact Output For inductive DC loads such as a solenoid, install 1 AMP 1000 PIV diode (part number 4092-0000) across the load as shown to protect the solid state module.
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34 TS310 Installation Configuration Operation Maintenance 4.5.3 TS310 to PX102 Transmitter Wiring The PX102 transmitter is a voltage output device powered by the TS310 +15 VDC supply (Terminals 20 and 40). PX102 provides a nominal 0.5 to 5.5 VDC signal used by the TS310 as an analog input for process measurement for backpressure control, extraction, inlet pressure control, etc.
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Chapter 4 - Installation & Wiring 35 TS310 Analog Input to 4 to 20 mA External Power Wiring 4.5.4 An analog input powered by an external circuit should be connected as shown in the figure below. 250 OHM PRECISION RESISTOR - + 40 COM TO SHIELD TERMINAL STRIP TS310 FIELD 4-20 mA INPUT Figure 21. Analog Input to External Power Wiring ! CAUTION NOTE: Beware of ground loops. Use an isolator when in doubt.
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36 TS310 Installation Configuration Operation Maintenance TS310 to Two-Wire Transmitter Wiring 4.5.5 Two-wire transmitters (Foxboro, Rosemount, Gould, etc.) should be wired to the TS310 as shown in Figure 17. NOTE: These cannot be powered from the TS310. ! CAUTION Beware of ground loops. Use an isolator when in doubt. NOTE: ONLY INSTALL THIS JUMPER IF TRANSMITTER POWER SUPPLY IS FLOATING.
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Chapter 4 - Installation & Wiring 4.5.6 37 Communications Wiring XMB XMA RECB RECA The RS422 multi-drop port communications should be connected as shown in the figure below. 4 5 6 7 + - + To Shield Terminal Strip 18-24 AWG Twisted Shielded Pair - + REC - + XMIT REMOTE SYSTEM 330-04 Figure 23. RS422 Communications Wiring NOTE: The shields grounds to Terminals 3 or 23. Grounding practice must follow instructions on Figures 29 and 30 later in this chapter.
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38 TS310 Installation Configuration Operation Maintenance 4.5.7 Magnetic Speed Pickup Wiring The TS310 controller requires an accurate and dependable sensed speed signal. Standard two-wire magnetic speed pickups should be used. Other devices can be used in some instances; in this case, consult the factory. Magnetic pickup connections should be made as shown in the figure below.
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Chapter 4 - Installation & Wiring 39 The choice of gear to use with a magnetic speed pickup is very important in obtaining a good speed signal. For best results the five items below should be considered: • Dimension of tooth top surface should be equal to or more than pickup pole piece diameter. • Tooth height should be equal to or more than the space between the teeth. • Space between teeth should be approximately three times pole piece diameter.
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40 TS310 Installation Configuration Operation Maintenance TS310 to HCX21 Transducer Wiring 4.5.8 The HCX21 current to hydraulic transducer should be connected as shown in the figure below. The HCX21 provides hydraulic pressure proportional to the TS310 4 to 20 mA current output. ANALOG OUTPUT COMMAND 4-20 mA TWISTED SHIELDED PAIR TO SHIELD TERMINAL STRIP + 40 COM 20 +15 V GND TWISTED SHIELDED PAIR TS310 FIELD SPLICE IN CONDUIT TWISTED PAIRS HCX21 WHITE RED BLACK WHITE TS310-19 Figure 26.
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Chapter 4 - Installation & Wiring 41 TS310 to HSC3 Hydraulic Actuator Wiring 4.5.9 The HSC3 Hydraulic Actuator should be connected as shown in the figure below. A 0 to 2 inch position signal is available on the green wire and optionally may be connected as an analog input for position readout.
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42 TS310 Installation Configuration Operation Maintenance 4.5.10 Current-to-Pneumatic (I/P) Transducer Wiring This transducer is used to convert TS310 output to a 3 to 15 psig or other pneumatic signal to operate pneumatic actuators. An I/P transducer should be connected as shown in the figure below. ANALOG OUTPUT - + TO SHIELD TERMINAL STRIP TS310 FIELD TWISTED SHIELDED PAIR 18-24 AWG AIR SUPPLY + 3-15 PSIG OUTPUT TS310-23 Figure 28.
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Chapter 4 - Installation & Wiring 4.5.
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Chapter 5 - Operating Functions 45 Chapter 5 - Operating Functions STOP F1 7 8 9 START F2 4 5 6 F3 1 2 3 CLEAR 0 • ENTER TS310 TRISEN 8.8.8.8.8.8.8.8. Display Keypad ) ) ) ) 2 Magnetic Speed Pickups 4 AI or Measurements, Etc. RS 422 Communications TS310 ELECTRONICS 8 Digital Inputs/Outputs Power 2 AO To Control Valves Figure 31. Function Relationships April 1998 Rev.
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46 TS310 Installation Configuration Operation Maintenance Commonly used keyboard and operating functions are listed below: • The START key will initiate the startup sequence. • The STOP key will close the governor valve, stopping the turbine. • The RAISE key ▲ will increase the reference at the setpoint ramp rate. • The LOWER key ▼ will decrease the reference at the setpoint ramp rate. • During startup, pressing RAISE or LOWER momentarily will halt acceleration.
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Chapter 5 - Operating Functions 5.1 47 Startup Sequence The startup sequence illustrated and described in these paragraphs is called NO IDLE and is configured in Channel 82 as (0XXX). PRESS START IF CHANNEL CH 82D IS CONFIGURED "STARTUP TUNING" (2 OR 3), TS310 WILL USE PROP BAND = CH 94 AND INTEGRAL = 95. OTHERWISE, TS310 WILL USE PROP BAND = CH 20 AND INTEGRAL = 21.
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48 TS310 Installation Configuration Operation Maintenance No Idle - Channel 82 = (0XXX) As shown in the startup sequence diagram (figure above), the steam turbine governor valve will begin to open when the START key is pressed. The speed reference will rise at the acceleration rate which is set in Channel 12. Actual turbine speed will then follow the speed reference as determined by the controller tuning which is set in Channels 20 and 21.
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Chapter 5 - Operating Functions 5.3 49 Startup Sequence Variations Several variations are available for Startup Sequencing. NO IDLE - Channel 82 is configured (0XXX) - This sequence was described previously. AUTO ACCELERATE (F2) - Channel 82 is configured (1XXX) - This startup procedure is identical to NO IDLE except that the speed reference will automatically HALT at the IDLE SPEED (or slowroll) RPM which has been entered in Channel 36.
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Chapter 6 - Maintenance 51 Chapter 6 - Maintenance GENERAL: The TS310 is completely solid-state and requires no routine maintenance as such. It should be inspected periodically to assure that the internals are tight and dry.
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52 TS310 Installation Configuration Operation Maintenance There are only four assemblies in the unit. These are the Main Circuit Board, the Termination Panel, the Power Supply assembly and the Keyboard. Consult the hardware chapter of this manual for a detailed discussion of these parts. Be sure that replacement parts are configured for the particular application. If the Main Board is replaced, it must be configured before it will work.
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Chapter 6 - Maintenance 53 If EPROMS are changed but the footprint is the same, it is possible the checksum will not compare. In this case, as will be the case above, one or more E errors will show in the eight digit display. If this occurs, the TS310 must be powered down and then powered up again to permit recalculation and reentry of the checksum or reentry of the new footprint.
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Chapter 7 - Spare Parts 55 Chapter 7 - Spare Parts Major TS310 Assemblies 1310 TS310 Main Board 1311 TS310 Termination Panel, less I/O modules 0085-3293 TS310 Keyboard 84-2228 TS310 Power Supply Assembly, 100-250 VAC/90-350 VDC 85-2301 TS310 Power Supply Assembly, 10-40 VDC 90-0650 Spare PCB and Software, Two Valve Set of EPROMs with software for particular application. (See Chapter 2 for software part numbers.) Digital Input/Output Modules 7061-0000 IAC5 7061-0001 IAC5A 7049-0000 IDC5 IDC5G N.O.
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56 TS310 Installation Configuration Operation Maintenance 9250-0000 9274-0000 9276-0000 9277-0000 Fuse, 0.5 amp plug-in pico (for F9 and F10) Fuse, 5 amp plug-in pico (for F1 to F8) Fuse, 0.
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Chapter 8 - Specifications 57 Chapter 8 - Specifications Electrical Factory Mutual Approved Approved for Hazardous Locations NEMA Approved Non-incendive Class I, Div.
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58 TS310 Installation Configuration Operation Maintenance Electronics CPU 16 bit TMS 9995 - 12MHz Clock RAM Memory 8K Bytes EEPROM 2K Bytes Non-volatile Read-Write Memory EPROMs 32K Bytes Non-volatile Program Memory A/D Converter 12 bit, 200 microsecond/channel Watchdog Timer Monitors Computer for Failsafe Shutdown Critical Parameters Reside in Non-volatile EEPROM Program Data Retained Through Power Loss Functional Pickup Inputs Single or Dual (automatic switching upon loss) Frequency Range
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Chapter 9 - Configuration 59 Chapter 9 - Configuration This chapter is a quick reference guide, intended for use primarily during configuration changes. It will also be helpful during initial configuration, especially if the application is for a basic control scheme. A sample minimum configuration is also included at the end of this chapter. The following Chapter 10 provides in depth discussions of the channels covered in this chapter. 9.
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60 TS310 Installation Configuration Operation Maintenance 5. When fininshed with your configuration, exit the three-dot mode as follows. − At any channel, press the decimal point three times. The decimal point should no longer appear on the display. To save a configuration, call up Channel 99 and enter any single-digit number, other than the password, and then press ENTER. 9.2 Password Operating values, such as speed reference and tuning parameters, can be entered by way of the keypad at any time.
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Chapter 9 - Configuration 9.3 61 Changing The Password THIS PAGE CAN BE REMOVED FROM THE MANUAL, IF DESIRED. All TS310 controllers are shipped with Password 6883. If it is necessary to change the Password, this is accomplished, as follows: 1 E4 9 10 2 The figure at right shows the various positions of the E4 jumper, which is located in the bottom left-hand corner of the TS310 Main Board.
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62 TS310 Installation Configuration Operation Maintenance This page has been left blank intentionally. April 1998 Rev.
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Chapter 9 - Configuration 9.4 63 Entering Data Whether a Password is required or not, all configuration value entry procedures are accomplished as follows: Example #1: Change speed setpoint (reference) from 3600 RPM to 3620 RPM Press 05 the display will read _ 5 _ _ 3 6 0 0 Press ENTER: the display will read _ 5 E _ _ _ _ 0 Press 3620: the display will read _ 5 E _ 3 6 2 0 Press ENTER again: the display will read _ 5 _ _ 3 6 2 0 And the transaction is complete.
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64 TS310 Installation Configuration Operation Maintenance 9.5 Function Keys The F1 key performs the following functions in the TS310: • When configured to do so, the F1 key enables/disables the 2nd PID controller. • When applied to a generator the TS310 will enable or disable auto-sync when F1 is configured. • When applied to a generator with 2nd PID and auto-sync, F1 enables auto-sync; i.e., load breaker is open, and 2nd PID if machine is operating in droop.
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Chapter 9 - Configuration 65 TS310 MACHINE DATA LISTING FUNCTION * * = Required for minimum operation (see ¶9.
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66 TS310 Installation Configuration Operation Maintenance TS310 MACHINE DATA LISTING FUNCTION * * = Required for minimum operation (see ¶9.8) D = Display only K = Password protected T = Tuning S = Setpoint DISPLAY C RANGE UNITS H ANALOG INPUTS DEFINITION & CALIBRATION MIN ANALOG INPUT #1 K 4 6 0-10.00 VOLTS MAX ANALOG INPUT #1 K 4 7 0-10.00 VOLTS MIN ENGRG UNITS #1 K 4 8 0-29999 ENG UNITS MAX ENGRG UNITS #1 K 4 9 0-29999 ENG UNITS MIN ANALOG INPUT #2 K 5 0 0-10.
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Chapter 9 - Configuration 67 TS310 MACHINE DATA LISTING FUNCTION * DISPLAY * = Required for minimum operation (see ¶9.8) D = Display only K = Password protected T = Tuning S = Setpoint C H 2ND PID CONTROL 8 3 K RANGE UNITS WORD #14 STATUS INDICATORS K 8 4 WORD #15 SPEED SWITCH CONF.
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68 TS310 Installation Configuration Operation Maintenance 9.7 CH 0-4 Range: Units: Ref.: Channel Definitions Speed And Analog Input Displays 0-29,999 RPM Channels 10 and 11 These four channels are known as display channels. The information that is displayed by these channels cannot be changed via the keypad. CH 0 will display the speed measurement used to control your machine. CH 1 through 4 will display the value of the four analog inputs if they have been configured for use.
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Chapter 9 - Configuration CH 12 Range: Units: Ref.: Acceleration Rate 69 * Configuration Required 0-29,999 RPM/MIN Channel 82 This channel is probably the first channel you will need to consider configuring. The acceleration rate is the rate at which you would like your machine to accelerate to the minimum governor speed (minimum running speed). Under two types of startup sequences, FAST START and MANUAL ACCELERATE, this information is not required.
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70 TS310 Installation Configuration Operation Maintenance CH 18-19 Speed Switch Settings Range: Units: Ref.: 0-29,999 RPM Channels 72-79, and 85 These two channels will contain the settings for speed switches, if you decide to use them. A later discussion will explain how to configure the switches in several different fashions. If you wish, at this point, you can enter a setpoint for either number one speed switch (CH 18) or both switches.
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Chapter 9 - Configuration 71 These are suggested turning values to start with. The system will require further tuning after you get your machine up to speed. CH 34-35 V2 Limits Range: Units: Ref.: 0-100 Percent Channels 9, 64, 65, 72-79, and 86 These channels are limits for the second valve output, when used; CH 34 is the minimum valve position, and CH 35 is the maximum valve position. These limits will not be imposed until the machine reaches minimum governor speed.
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72 TS310 Installation Configuration Operation Maintenance CH 46-61 Analog Inputs Ref. CH 70 and 71 ACON Chapter 4 Use of the four analog input signal positions (wiring terminals 8 through 15 of the terminal board) is optional. The configuration options (CH 70 and 71) are selected from 22 different configuration possibilities available. The only individual configuration option that should ever be duplicated (used more than once) is the 00, NOT USED, option.
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Chapter 9 - Configuration 73 Example 2: A 0 to 10 volt DC input signal that represents a 100 to 500 psig steam turbine back pressure signal at analog input position #2: The 0 to 10 volt input signal would be connected to wire terminals 10(-) and 11(+) of the termination board: Minimum input voltage, 0.00, would be entered in Channel 50. Maximum input voltage, 10.00, would be entered in Channel 51. Minimum units (psig), 100, would be entered in Channel 52.
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74 TS310 Installation Configuration Operation Maintenance CH 66 Range: Units: Ref.: Local Load Limit 0-100 Percent Channels 72-79, 84, and 87 The entry you make in this channel will be used by the TS310 to limit the horsepower of your machine. You may simply wish to set this channel at 100.0 giving you full horsepower. The limit is used by the TS310 as it compares the 1st PID output in percent to the value of this channel.
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Chapter 9 - Configuration 75 CH 70-71 Analog Input Configuration Words 1 and 2 Ref.: Channels 1-4, and 46-61 These two channels are the first of the Configuration Words (the four digit number you configure for each channel) that will define the four analog inputs. The following illustrates the positions on the TS310 display of the four digits in a configuration word, positions A, B, C and D.
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76 TS310 Installation Configuration Operation Maintenance As an example, let’s say we want the second analog input to be a direct speed setpoint (min. input = min. speed; max. input = max. speed). We would configure CH 70 with "0004". The first two digits "00" would mean that the first analog input was not used. The last two digits are "04" which mean "Speed Setpoint (Direct)". CH 71 might be any number from "0000" on. This would depend on whether you were going to use the third and fourth analog inputs.
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Chapter 9 - Configuration 77 CH 72-79 Input/Output Contacts Configuration Words 3-10 Ref.: These eight channels (Configuration Words) will define the requirement of the eight input/output modules. Keep in mind that when we say eight input/output we mean, any combination of I/O, up to eight. We do not mean there are eight of each. You will find that the configuration of these channels is a bit different from those discussed so far.
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78 TS310 Installation Configuration Operation Maintenance Let’s start with the A position, the definition of the type of I/O. Below is a list of the possible types of I/O. Take just a moment to look them over. A Position 0 - Not Used 1 - Input/N.O. 2 - Input/N.C. 3 - Output/N.O. 4 - Output/N.C. We are going to cover the type of contacts we have to configure next. Do not be concerned about what function you want the contact to work as.
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Chapter 9 - Configuration 79 B Position of the Configuration Words for contacts can be used to turn on and off a status indicator. The status indicators are four inverted triangles located on the bottom of the TS310 display. As you are about to discover, they can be turned on at a function or turned off at a function. Take a moment to look over the choices below.
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80 TS310 Installation Configuration Operation Maintenance In the C and D positions of these Configuration Words, you will set the function of the contact I/O. There are many choices to choose from. Below is the list of functions. Please take a few minutes to look them over.
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Chapter 9 - Configuration 81 07 - IDLE/RUN: To use this input you must configure an idle speed. To command your machine to either "RUN" or "IDLE", you change the status of this input. The type of contact will determine when each function is to happen. An example would be: CH 72 = 1007 - When a switch is closed (power to the input) you will be in IDLE function. Opening the switch will cause the RUN function to activate.
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82 TS310 Installation Configuration Operation Maintenance 23 - NOZZLE VALVE No.2: In CHs 42 and 43 you may have configured a value to open and close a second nozzle valve. This contact would be used to output the action to the nozzle valve. 24 - NOZZLE VALVE No.3: In CHs 44 and 45 you may have configured a value to open and close a third nozzle valve. This contact would be used to output the action to the nozzle valve.
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Chapter 9 - Configuration 83 38 - LOAD LIMITED: This contact output is true when the controller is limiting its output to control machine load. It is enabled when the TS310 speed reaches minimum governor. By definition, it is true when the V1 output reaches 100%. If no analog input is configured, for this function, it becomes true when the V1 output equals the value in CH 66 or 100%, which ever is greater.
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84 TS310 Installation Configuration Operation Maintenance CH 80 Speed Control Configuration * Configuration Required Configuration Word 11 Ref.: Channels 8, 38, 39, 62, 63, 72-79 This channel is the first of three channels we will configure to set up the speed controller in the TS310. Like the last two Configuration Words, this one consists of four parts. The number you select will be the first digit, A position, from the left in Word 11. The list below is the A position of Word 11.
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Chapter 9 - Configuration 85 The second digit, B position, from the left for Word 11 will configure the action of the start function. Below is the list of selections: B Position = Start Button 0 - None 1 - Local Only 2 - Remote Only 3 - Local and Remote There is little to explain here, as the definitions are very self explanatory. I would caution you to remember that, to the TS310, any button on the keypad is a local function. Any function that comes through the termination board is a remote function.
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86 TS310 Installation Configuration Operation Maintenance CH 81 Nozzle Valve Control * Configuration Required Configuration Word 12 Ref.: CH 40-45, 70-71, 72-79, This channel is the second of the speed Configuration Words. A list of the selections for the first digit, A position, of Word 12 appears below. A Position = Nozzle Valves 0 - Disable 1 - Enable 1 Valve 2 - Enable 2 Valves 3 - Enable 3 Valves 0 - DISABLE: Selecting a "0" will instruct the TS310 to use no nozzle valves.
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Chapter 9 - Configuration 87 The second digit, B position, of Word 12 is used to define the setpoint to the speed controller. The setpoint to the speed controller is use by the TS310 to set the speed of a machine. We will cover both remote and local setpoints. I would remind you, the TS310 refers to itself as local and anything outside the TS310 as remote. The list of selections appears below.
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88 TS310 Installation Configuration Operation Maintenance CH 82 Startup/Stop/Overspeed/Tuning * Configuration Required Configuration Word 13 Ref.: The first digit, A position, of Word 13 sets up the startup mode. The selections are listed below. A Position = Startup 0 - No Idle 1 - Auto Acceleration 2 - Manual Acceleration 3 - Fast Start 0 - NO IDLE: The no idle selection tells the TS310 to provide "no idle". The TS310 will not check the values in CHs 36 and 37 (idle speed and idle fuel).
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Chapter 9 - Configuration 89 The second digit, B position, of Word 13 is used to set up the stop function. The list below provides the selections. B Position = Stop Function 0 - None 1 - Stop Causes Trip 2 - Stop Causes Stop Only 3 - Stop = Return to Idle 0 - NONE: This selection disables the stop function. With some applications you may wish trips only to stop the machine. Neither the stop key nor the stop contact input would work if this selection were to be made.
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90 TS310 Installation Configuration Operation Maintenance The last digit, D position, in Word 13 is used to set up the setpoint to the controller. You will also find that it selects the type of tuning for startup as listed below for this function. D Position = Setpoint/Startup Tuning 0 - Standard Setpoint 1 - Running Setpoint 2 - Standard Setpoint/Startup Tuning 3 - Running Setpoint/Startup Tuning 0 - STANDARD SETPOINT: By selecting this function you will instruct the TS310 to use the standard setpoint.
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Chapter 9 - Configuration CH 83 91 2ND PID Controller Configuration Word 14 Ref.: This Configuration Word is used by the TS310 to enable the use of the 2nd PID controller. The 2nd PID controller cascades (ties in with) the speed controller. This controller can control back pressure (exhaust pressure), inlet pressure, discharge pressure , etc. The 2nd PID control is used as a limiting function for "not to exceed" or "not to go below" functions.
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92 TS310 Installation Configuration Operation Maintenance The second digit, B position, of Word 14 sets up the function of the 2ND PID controller. Look over the selections below for just a moment, then continue with your reading. B Position = Function 0 - Not Used 1 - Speed Cascade 2 - Output HI-Limit 3 - Output LO-Limit 0 - NOT USED: Entering a 0 tells the TS310 not to use this function. 1 - SPEED CASCADE: The selection of this function sets up the TS310 as a cascade control.
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Chapter 9 - Configuration CH 84 93 Status Indicators Configuration Word 15 Ref.: This Configuration Word will define the use of the four positions on the TS310 display. The configuration of Word 15 is just a bit different from the previous words. The selection of functions will stay the same for all four digits in Word 15. The first digit will define the first position to the left. Then the second digit will define the second position from the left. The last two digits define the last two positions.
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94 TS310 Installation Configuration Operation Maintenance Shutdown Enable 0 - No Shutdown 1 - Shutdown Before, we configure a number for this channel, let’s define each of the functions listed above. The definitions for the list will be unlike those you have seen before. I will not be listing by the number of the selection. I will define high speed, low speed, latching, etc. • HIGH SPEED - A high speed switch is activated above the value set in CH 18 or 19.
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Chapter 9 - Configuration 95 The action that will now take place is as follows: If the machine reaches and stays above 1000 RPM (CH 18) before 180 seconds (CH 88), the number one switch will not activate. After 180 seconds have passed, if the speed of the machine goes below 1000 RPM, the contact number 1 (CH 72) will activate. The TS310 control system will then shutdown the machine. If the machine reaches 3000 RPM (CH 19) the second speed switch will activate and latch.
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96 TS310 Installation Configuration Operation Maintenance CH 87 Synchronous Generator Configuration Word 18 Ref.: These channels provide more complex controls. The complexity of the controls is not caused by the TS310. It is caused by their application. A complete and well defined discussion of these channels is in Chapter 10 of this TS310 users guide.
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Chapter 9 - Configuration CH 93 Gear Ratio Units: Range: Ref.: Ratio 0.000-9.999 97 A value in this channel will set up a gear ratio used by the TS310 for speed calculation. The gear your pickup is reading may be on a secondary shaft, not the machine’s shaft. If the shaft speeds are not the same, you can enter the ratio here. If the main shaft runs twice as fast as the secondary shaft, a ratio of 2.000 is required. CH 94-95 Startup Tuning Units: Range: Ref.
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98 TS310 Installation Configuration Operation Maintenance CH 128 Load Preset This channel has a range of 0 to 10 percent. The value configured in this channel will be used to increase the valve position on load breaker closure. This will allow the TS310 to pick up a small amount of load on a generator. Prior to V14 of the TS310 software, the percent of increase is removed at the reset rate in Channel 21.
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Chapter 9 - Configuration CH 155 Range: Units: Ref.: 99 Extraction/Admission Limit 0-100 Percent Channels 70-79, 86, and 87 The entry you make in this channel will be used by the TS310 to limit the extraction/admission of your machine. You may simply wish to set this channel at 100.0 giving you full extraction/admission capability. The limit is used by the TS310 as it compares the 3rd PID output in percent to the value of this channel.
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100 TS310 Installation Configuration Operation Maintenance CH 157 MODBUS® Configuration Configuration Word 21 Ref.: This channel will configure the MODBUS communications parameters.
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Chapter 9 - Configuration 9.8 101 Minimum Basic Configuration As a minimum, values must be entered in sixteen of the TS310 channels in order for the controller to operate. These values are shown below and on the next several pages. CHANNEL PURPOSE CH 12 CH 15 CH 16 CH 17 CH 88 CH 89 Acceleration Rate Minimum Governor Maximum Governor Overspeed Trip Failsafe Timer Number of Gear Teeth CHANNEL 12 The acceleration rate sets acceleration in RPM to be used during the startup sequence.
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102 TS310 Installation Configuration Operation Maintenance CHANNEL PURPOSE CH 67 CH 80 CH 81 CH 82 Setpoint Ramp Rate Defines Speed Control Functions Defines Speed Control Functions Defines Speed Control Functions CHANNEL 67 The setpoint ramp rate determines how fast a setpoint or reference will change when the RAISE/LOWER functions are used. It also determines how fast a setpoint entry change is implemented even though the full change may be promptly displayed when it is entered.
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Chapter 9 - Configuration CHANNEL PURPOSE CH 20 CH 21 CH 38 CH 39 CH 62 CH 63 Proportional Band Setting (in percent) Reset Setting (in seconds) Output Low Limit (normally 0.0%) Output High Limit (normally 100.0%) Minimum Output Signal (normally 4.00 milliamps) Maximum Output Signal (normally 20.00 milliamps) 103 CHANNEL 20 and CHANNEL 21 The proportional band and reset (integral) settings are tuning parameters that are found on any normal process controller.
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104 TS310 Installation Configuration Operation Maintenance Sample Minimum Configuration A sample minimum configuration is shown below: CHANNEL CONFIGURATION 12 1000 ACCELERATION RATE 15 3000 MINIMUM GOVERNOR 16 5000 MAXIMUM GOVERNOR 17 5500 OVERSPEED TRIP 20 20 PROPORTIONAL BAND 21 2 RESET RATE 38 0 MINIMUM VALVE POSITION 39 100 MAXIMUM VALVE POSITION 62 4.00 MINIMUM OUTPUT SIGNAL 63 20.00 MAXIMUM OUTPUT SIGNAL 67 1.00 SETPOINT RAMP RATE 80 0110 SPEED CONTROL CONFIG.
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Chapter 10 - Configuration - Expanded Discussion 105 Chapter 10 - Configuration - Expanded Discussion 10.1 Alarms, Diagnostics, Flags (CH 84, 97) A number of alarms, diagnostics and flags are available in the TS310 controller to report various conditions, and for reviewing recent operating history. Some of these are: CHANNEL 97 Is a record of the last four shutdowns. This item is quite useful in diagnosing the cause of a unit shutdown.
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106 TS310 Installation Configuration Operation Maintenance 2 = EPROM Fault 3 = EEPROM Fault 4 = KEYBOARD Fault 5 = Analog to Digital Converter Fault 6 = Digital to Analog Converter Fault 7 = Digital Input/Output fault 8 = Communications Interface Fault For example, the following display indicates that both the EPROM and the EEPROM diagnostics have failed: 0 0 0 0 0 E E 0 Contact Triconex technical support if you need assistance interpreting diagnostic displays.
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Chapter 10 - Configuration - Expanded Discussion 107 Since Analog Input No. 1 is coded in Channel 70 (AB), Channel 70 will be configured as (04XX) since 04 is the code for remote speed reference. Similarly, if Analog Input No. 2 is to be configured as a remote load limit, we will configure the following: Enter 1.00 in Channel 50 Enter 5.00 in Channel 51 Enter 0.0 in Channel 52 Enter 100.
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108 TS310 Installation Configuration Operation Maintenance Since the poppet valves are an ON/OFF operation, they normally will open quickly when air is supplied by the solenoid valve. This can cause the steam chest pressure to change suddenly, and will disturb the control equilibrium of the controller. This tendency can be minimized or eliminated by inserting an orifice union (say, 1/8 inch or 1/16 inch) in the air line to the poppet valve.
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Chapter 10 - Configuration - Expanded Discussion 109 Cascade control can be configured to enable (turn on) automatically when turbine speed reaches minimum governor. In this case, the 2nd PID setpoint remains where it has been set, whether the turbine is running or stopped, and whether the 2nd PID control is enabled or not. Cascade control also can be configured to enable only when the turbine speed is above the minimum governor setting AND the F1 function key is pressed.
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110 TS310 Installation Configuration Operation Maintenance VALVE ACTION = DIRECT. This means that an increasing measurement (speed) should cause a decreasing output. Since VALVE ACTION is DIRECT, a decreasing output will close the valve and decrease steam flow to the turbine. The total control loop (including actuator and steam valve) is therefore REVERSEACTING. However, if a reverse-acting actuator is used, the picture is not as clear.
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Chapter 10 - Configuration - Expanded Discussion 10.6 111 Digital Input/Outputs (CH 72-79) Channels 72 through 79 each can be configured as either an input digital contact or as an output digital contact. These contacts then interface with the outside world by way of solid state switches , or relays. The switches are identified as M1 through M8 on the TS310 termination panel. See below.
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112 TS310 Installation Configuration Operation Maintenance As is the case with the analog inputs, the input/output contact channels are not dedicated. Any contact definition can appear in any channel. The TS310 determines what action should be taken solely as a result of the coding. Position has no bearing except to determine which terminals are to be connected.
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Chapter 10 - Configuration - Expanded Discussion 10.8 113 Limits, Limit Alarms, Gear Ratio (CH 13-17, 37-39, 66, 68, 83, 84, 88, 93, 155) A number of limits are provided within the TS310 program. These consist of fixed limits and adjustable limits. Fixed limits can be changed only by entering the PASSWORD and reentering the value in some channel. This should only be done with the turbine down. Adjustable limits are limiting functions which change or can be changed while the turbine is in operation.
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114 TS310 Installation Configuration Operation Maintenance This reset-only control can then be used, for example, as a (reverse acting) controller, internal to the TS310, for some limiting capacity such as high pressure limiting of a pump discharge pressure, etc. Thus, if the pressure range happens to be 1000 psi and we wish to limit the pump discharge pressure to 800 psi, we would bring the 1000 psi pressure signal into the TS310 as an analog input coded (20), and set Channel 66 (the setpoint) at 80%.
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Chapter 10 - Configuration - Expanded Discussion 115 GEAR RATIO, Channel 93, will default to 1.000 value whenever a zero entry exists. If, however, the toothed wheel used to measure speed by the magnetic pickups is not turning at shaft speed, the correct gear ratio should be entered in Channel 93. Gear ratio values can be entered between 0.001 and 9.999. • If the gear turns at 1/2 shaft speed, enter a gear ratio value of 2.000. • If the gear turns at twice shaft speed, enter a gear ratio value of 0.
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116 TS310 Installation Configuration Operation Maintenance NOTE: If an overspeed trip contact output or status indicator is configured, this ouput or indicator will indicate that the machine has exceeded the overspeed setting when the machine’s speed exceeds the overspeed setting originally entered in Channel 17. THIS OVERSPEED INDICATION DOES NOT MEAN THAT THE MACHINE IS TRIPPED. It means that the machine speed is higher than the normal electronic overspeed setting.
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Chapter 10 - Configuration - Expanded Discussion 117 Channel 81 B CONFIGURED = 4 - LOCAL AND REMOTE (SELECT) A configured remote speed setpoint will be recognized only after reaching minimum governor and being enabled by a contact input labeled ENABLE REMOTE SPEED SET. While the remote speed setpoint is enabled, the local speed setpoint is ignored. The local speed setpoint will track the remote speed setpoint as long as the remote speed setpoint is enabled.
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118 TS310 Installation Configuration Operation Maintenance CH 80 D configures the TS310 for (XXX0) SPEED CONTROL or for (XXX1) SYNCHRONOUS GENERATOR OPERATION .
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Chapter 10 - Configuration - Expanded Discussion 119 Channel 82, Word 13 A = Startup 0 No Idle 1 Auto Accelerate (F2) 2 Manual Accelerate 3 Fast Start B = Stop Function 0 None 1 Stop Causes Trip 2 Stop Causes Stop Only 3 Stop = Return to Idle C = Overspeed Test 0 None 1 With Jumper #2 2 External Contact D = Setpoint/Startup Tuning 0 Standard Setpoint 1 Running Setpoint 2 Standard SP/Startup Tuning 3 Run SP/Startup Tuning Word 13 C H A B C D 8 2 X X X X CH 82 A defines the type of startup
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120 TS310 Installation Configuration Operation Maintenance 10.12 Speed Switches (CH 18, 19, 85) Two internal speed switches are provided in the TS310 controller. Either one can be labeled a high speed switch or a low speed switch. Speed settings are entered in Channel 18 for speed switch number 1 and in Channel 19 for speed switch number 2.
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Chapter 10 - Configuration - Expanded Discussion 121 CH 82 B can also be configured in several ways: CH 82 B = (X1XX) means pressing STOP will also cause any TRIP OUTPUT contact or 3 SECOND PULSE TRIP output to operate, and will also cause the turbine governor valve to close. CH 82 B = (X2XX) means pressing STOP will cause the turbine governor valve to close but will not cause any TRIP to function.
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122 TS310 Installation Configuration Operation Maintenance 10.
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Chapter 10 - Configuration - Expanded Discussion 123 Conversely, an extraction priority would force the turbine to continue increasing extraction even though this can penalize speed or load demands dictated by the speed control section of the TS310. Thus, extraction priority should never be used except where horsepower (speed) is not controlled. NOTE: Standard Software V14 (03D-01049-01-14) automatically disables EXT priority when Isoc is enabled.
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124 TS310 Installation Configuration Operation Maintenance It must be emphasized that extraction maps can not be true models of the turbine. For example, what is drawn as the zero steam flow line can actually be the zero horsepower line, etc. However, these values are used by the TS310 for Feed Forward Control, so approximate values work quite well. Obviously, the more accurate values will provide better control.
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Chapter 10 - Configuration - Expanded Discussion 125 10.
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126 TS310 Installation Configuration Operation Maintenance SYNCHRONOUS GENERATOR OPERATION: Because of the wide scope of applications, the TS310 generator software configuration is discussed in several phases: (See Generator Chapter for more information.) • • • • • • • 10.16.
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Chapter 10 - Configuration - Expanded Discussion 127 At the same time, a small increase in output (about 5%) is provided by the TS310. This action (increases in valve position) insures that the generator will pick up some load upon breaker closing to prevent motoring of the generator. When the load breaker opens, the TS310 immediately reduces the control output to zero valve position, anticipating any increase in speed from loss of load.
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128 TS310 Installation Configuration Operation Maintenance Two contacts in the MPS390 provide the capability to drive a potentiometer for voltage matching. Permissive contacts in the MPS390 prevent the TS310 from closing the load breaker until voltages are matched if this feature is used. A contact output to the TS310 from the MPS390 is used to enable the TS310 to close the load breaker on a dead bus when auto-synchronizing has been configured.
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Chapter 10 - Configuration - Expanded Discussion TS310 DIGITAL CONTROLLER UTILITY TIE BREAKER #4 D/I #1 A/I 3rd PID MEASUREMENT 129 PICKUP #1 #2 #1 A/I D/I PICKUP #2 #3 A/I #4 A/I #2 #3 D/I D/O GENERATOR LOAD BREAKER OPTION OUTPUT #1 CLOSE SERVO-AMP NO. 1 ACTUATOR POSITION VA CLOSED KILOWATTS SYNCH PHASE MPS390 OUTPUT #2 LIVE/DEAD BUS ACTUATOR POSITION SERVO-AMP NO.
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130 TS310 Installation Configuration Operation Maintenance 10.16.4 Auto-Synchronizing As noted earlier, the TRISEN MPS390 furnishes a 0 to 10 VDC signal which the TS310 uses to detect when phases are synchronized. This is input as SYNCH PHASE (07) in Channel 70 or 71. The SYNCH PHASE signals the TS310 when the generator is in phase as follows: 0 volts = 0°; 5 volts = 360°; and 10 volts = 720°. When the signal is at 4.95 volts and is increasing, the TS310 will close the load breaker.
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Chapter 10 - Configuration - Expanded Discussion 10.16.7 131 Parallel Isochronous Control Parallel Isochronous Control can be achieved with several parallel generators driving an isolated bus (not connected to a utility). The MPS390 provides another 0 to 10 VDC signal which is impressed upon a signal bus common to several other MPS390 modules such that the signal bus provides an average of the output of the several generators.
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132 TS310 Installation Configuration Operation Maintenance closes the steam governor valve in addition to activating the trip output. This permits the governor valve to act as a backup in the event that the trip and throttle valve should fail to operate for some reason. The microprocessor-based program is sufficiently versatile to cause a trip condition when other outof-bounds variations occur.
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Chapter 10 - Configuration - Expanded Discussion 133 minimum governor. By the same token, Channels 20 and 21 must then be tuned at an RPM above the minimum governor setting. TUNING FOR AUTO-SYNCH is set in Channel 28 (reset). About 100 seconds to 200 seconds is appropriate for most applications. However, some applications can require faster action with a reset setting of perhaps 5 to 10 seconds. The derivative function, which is set in Channel 29, is very seldom used.
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TS310 MOD4A Digital Controller Troubleshooting Guide Document No. 4933-0017 April 1998 Rev.
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iii Copyright Copyright 1998 by TRICONEX La Marque, Texas, U.S.A. All rights reserved. No part of this work covered by the copyright hereon may be reproduced or copied in any form or by any means--graphic, electronic, or mechanical--without first receiving the written permission of TRICONEX, La Marque, Texas, U.S.A. Printed in U.S.A. TRICONEX reserves the right to make improvements in the design, construction, and appearance of its products without prior notice. April 1998 Rev.
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iv TS310 Troubleshooting Guide Revision History Rev. A September 1990 General technical and editorial revision. Rev. B July 1991 General editorial revisions. Technical revisions to Paragraphs 2.1 and 3.2. Rev. C September 1991 Changed Paragraph 2.1. Rev. 1 April 1998 General technical and editorial revision; reformatted including A4. April 1998 Rev.
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Contents v Contents REVISION HISTORY...................................................................................................................... III CONTENTS ............................................................................................................... v Chapter 1 - Introduction........................................................................................... 1 Chapter 2 - Displays.........................................................................................
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vi TS310 Troubleshooting Guide Chapter 7 - Analog Inputs ......................................................................................23 7.1 #1 Analog Input Not Working ............................................................................................... 23 7.2 #2 Analog Input Not Working ............................................................................................... 24 7.3 #3 Analog Input Not Working ......................................................................
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Chapter 1 - Introduction 1 Chapter 1 - Introduction This guide was designed to assist you in solving problems that might occur in your TRISEN TS310 Control System. It has been compiled in such a way that it will take you through a problem one step at a time. We suggest that you take each step one at a time and check after each to see if you have solved your problem. Many problems may not be caused by your TS310.
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Chapter 2 - Displays 3 Chapter 2 - Displays 2.1 Symptom Troubleshooting Steps Display Blank 1. Check to make certain there is main power being supplied to the power supply. 2. Check the power fuse in the power supply. 3. Check the green LED on the Main Board. It should be blinking. If it is not power down the system and then back up. Check again. 4. Check the +5.10 VDC (±0.05 V), +15, -15 VDC levels on the Main Board at the test points located near the power connection, +5V, DGN, +15V, -15V, and AGN.
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4 2.3 TS310 Troubleshooting Guide Display Fading 1. Check the +5.10 VDC (±0.05 V), +15, -15 VDC levels on the Main Board at the test points located near the power connection, +5V, DGN, +15V, -15V, and AGN. 2. Check AC on +5VDC; must be less than 15m VAC. If power is OK, continue with steps below. If not, replace power supply. 3. Replace the Main Board. April 1998 Rev.
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Chapter 3 - Keypad/Function Keys 5 Chapter 3 - Keypad/Function Keys Symptom 3.1 Keypad Unresponsive Troubleshooting Steps 1. Disconnect the keypad from the Main Board and connect a spare keypad. If the spare keypad operates then replace the keypad. 2. Check +5 VDC or AC ripple. If over 15 mV Rms change power supply. 3. Replace the Main Board. 3.2 Local START Not Working 1. Check Channel 80 and make certain the TS310 is configured for a local start.
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6 TS310 Troubleshooting Guide Symptom 3.4 Local STOP Not Working Troubleshooting Steps 1. Check Channels 80 and 82 and make certain the TS310 is configured for a local stop. 2. Look at Channel 05 after pressing stop. The speed setpoint should go to 0 or to idle speed. 3. Look at Channel 08 after pressing stop. The display should decrease to 0 or should be moving in the decrease direction. 4.
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Chapter 3 - Keypad/Function Keys Symptom 3.7 Remote Digital RAISE/LOWER Not Working 7 Troubleshooting Steps 1. Check Channel 81 and make certain that the TS310 is configured for local or remote/local setpoint to speed controller. 2. Look at Channel 05 to see if the setpoint is increasing or decreasing as you press the remote raise or lower. If it does not change then go to SYMPTOM 8.1, STEPS 1 through 6. 3. Look at Channel 08 to see if the output increase or decreases as you change the setpoint.
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8 3.8 TS310 Troubleshooting Guide Symptom Troubleshooting Steps Local F1 Not Working 1. If F1 is being used to enable AUTO SYNC then check Channel 87 to make certain that the configuration is set up to perform AUTO SYNC via F1. 2. If F1 is being used to enable the 2nd. PID controller then check Channel 83 to make certain that the configuration is set up to enable the 2nd PID controller. 3. If the configuration covers a generator application make certain that the Load and Tie breakers are open to sync.
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Chapter 3 - Keypad/Function Keys Symptom 3.10 Local F2 Not Working 9 Troubleshooting Steps 1. If the F2 button is to initiate auto acceleration then make certain that Channel 82 is configured to do so. 2. If the F2 button was to initiate the 3rd PID controller make certain that Channel 86 is configured to do so. 3. If you are not using F2 to enable the 3rd PID controller go to STEP 4.
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Chapter 4 - Valve Output 11 Chapter 4 - Valve Output Symptom 4.1 V1 Output Not Working Troubleshooting Steps 1. Check Channels 37, 38, 39, 62, and 63 and make certain that you have configured them correctly. 2. Make certain that a PERMISSIVE to START digital input is not keeping you from starting. 3. Check the configuration in Channel 66 to make certain you do not have a load limit of 0%. 4.
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12 TS310 Troubleshooting Guide Symptom 4.3 V1 Output Action Incorrect Troubleshooting Steps 1. Determine the direction you want the TS310 V1 current output to go to fully open the governor valve(s). 2. Use an external current, voltage, or pneumatic source to check the action of your governor valve. 3.
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Chapter 4 - Valve Output Symptom 4.4 V2 Output Action Incorrect 13 Troubleshooting Steps 1. Check Channel 86 to determine how the 3rd PID is configured. 2. Use an external current, voltage, or pneumatic source to check the action of the valve you are going to control with the 3rd PID. 3. If you have configured the TS310 for Extraction, Admission, or Ext./Adm. control in Channel 86 then go to STEP 6. 4.
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Chapter 5 - Speed Control 15 Chapter 5 - Speed Control Symptom 5.1 Remote Analog Speed Setpoint Not Working Troubleshooting Steps 1. Check Channel 81 to make certain the TS310 is configured to have remote or remote/local setpoint. Also determine whether it is a HI or LO signal select. 2. Check Channel 70 or 71 to make certain that one of the analog input Channels had been configured for a remote speed setpoint. 3.
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16 TS310 Troubleshooting Guide Symptom 5.3 Turbine Not Accelerating At Correct Rate Troubleshooting Steps 1. Check Channel 12 to make certain you have entered the rate you need. The entry is in RPM per minute. 2. Check Channels 13 and 14 for a critical speed jumper. 3. Check Channel 82. If you are using STARTUP TUNING then check your tuning values in Channels 94 and 95. 4. Check the calibration of your governor valve versus the TS310 current output. 5.4 Critical Speed Jumper Not Working 1.
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Chapter 5 - Speed Control Symptom 5.6 Speed Switch #2 Not Working 17 Troubleshooting Steps 1. Check Channels 19, 81, and 72 through 79 to make certain the configuration in the TS310 is complete. 2. If you have not already configured a status indicator for the #1 speed switch, do so in Channel 84. 3. At the point the speed switch should activate, check the status indicator. If the indicator does not function, then go to STEP 5. 4.
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18 TS310 Troubleshooting Guide Symptom 5.8 Speed Change Too Slow/Fast Troubleshooting Steps 1. If the rate of speed change is too fast/slow from 0 speed to minimum governor then refer to SYMPTOM 5.2, STEPS 1 through 3. 2. If the rate of speed change is too fast/slow between minimum and maximum governor then check Channel 67 to determine the rate of change. If the rate is too fast/slow adjustment can be done by entering the correct rate here. 3.
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Chapter 5 - Speed Control Symptom 5.10 Turbine Will Not Go Above Idle Speed 19 Troubleshooting Steps 1. Check Channel 82 to determine how the TS310 has been configured to operate the idle speed and acceleration. 2. If the configuration is set for no idle then go to STEP 6. 3. If the configuration is set for auto acceleration by pressing F2 then go to SYMPTOM 3.10, STEP 1 through 8. 4. If the configuration is set for manual acceleration then go to STEP 6. 5.
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Chapter 6 - Nozzle Valves 21 Chapter 6 - Nozzle Valves Symptom 6.1 Nozzle Valve #1 Not Working Troubleshooting Steps 1. Check Channels 40, 41, 72 through 79, and 81 to make certain the TS310 is configured correctly for the #1 nozzle valve. 2. Refer to SYMPTOM 8.1, STEPS 2 through 7. 6.2 Nozzle Valve #2 Not Working 1. Check Channels 42, 43, 72 through 79, and 81 to make certain the TS310 is configured correctly for the #1 nozzle valve. 2. Refer to SYMPTOM 8.1, STEPS 2 through 7. 6.
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Chapter 7 - Analog Inputs 23 Chapter 7 - Analog Inputs Symptom 7.1 #1 Analog Input Not Working Troubleshooting Steps 1. Check Channels 46 through 49, and 70 to make certain the #1 analog input is configured in the TS310. 2. Look at Channel 01 on the TS310 display. You should see in engineering units a value between what is configured in Channels 48 and 49. If not, then go to STEP 4. 3. As you have arrived at this step then it is assumed that the digital readout for Channel 01 is working.
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24 TS310 Troubleshooting Guide Symptom 7.2 #2 Analog Input Not Working Troubleshooting Steps 1. Check Channels 50 through 53, and 70 to make certain the #2 analog input is configured in the TS310. 2. Look at Channel 02 on the TS310 display. You should see, in engineering units, a value between what is configured in Channels 52 and 53. If not then go to STEP 4. 3. As you have arrived at this step then it is assumed that the digital readout for Channel 02 is working.
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Chapter 7 - Analog Inputs Symptom 7.3 #3 Analog Input Not Working 25 Troubleshooting Steps 1. Check Channels 54 through 57, and 71 to make certain the #3 analog input is configured in the TS310. 2. Look at Channel 03 on the TS310 display. You should see, in engineering units, a value between what is configured in Channels 56 and 57. If not then go to STEP 4. 3. As you have arrived at this step then it is assumed that the digital readout for Channel 03 is working.
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Chapter 8 - Digital I/O 27 Chapter 8 - Digital I/O Symptom 8.1 Digital I/O Not Activating Troubleshooting Steps 1. Make certain the digital I/O is configured correctly in the correct Channel location. 2. Watch the red LED just above the digital I/O module you are having problems with and enable the I/O. The LED should change state. If it does not, replace the termination board. 3. Make certain the wiring for the digital I/O is going to the correct terminals. 4.
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28 TS310 Troubleshooting Guide Symptom 8.2 Contact I/O Working In Reverse Order Troubleshooting Steps 1. Check the proper channel where a contact I/O is configured (Channel 72 through 79). The first number of the four digit configuration word determines the state of the contact I/O. 2. If the contact I/O has a first number of 0 then the contact I/O is configured to be unused. 3. If the contact I/O has a first number of 1 then the contact I/O is configured to be an input from and outside contact. N.O.
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Chapter 9 - Miscellaneous 29 Chapter 9 - Miscellaneous Symptom 9.1 Local Load Limit Not Working Troubleshooting Steps 1. Check Channels 70, 71, and 87. Make certain the TS310 is not configured for a remote limiting function in one of these Channels. 2. Check Channel 66 and make certain you have entered into the configuration a limit. 3. Look at Channel 08 and make certain the percentage in this Channel does not go above the value set in Channel 66. If it does go to STEP 8. 4.
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30 TS310 Troubleshooting Guide Symptom 9.2 Inlet Pressure Not Controlling Troubleshooting Steps 1. Check Channel 83 to make certain the configuration is correct for your application. 2. Check Channels 24 through 27 to make certain you have some type of tuning data configured. 3. If you do not already have a status indicator that comes on when the 2nd PID is cascaded, then do so in Channel 84. 4. If you are configured in Channel 83 to enable the 2nd PID controller at minimum governor then go to STEP 8.
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Chapter 9 - Miscellaneous Symptom 9.5 Autosync Not Working 31 Troubleshooting Steps 1. Check Channel 87 to make certain you have configured the TS310 for auto sync. 2. If you have not already done so, configure in Channel 84 a status indicator that will come on when the TS310 goes into auto sync. 3. If you have configured the auto sync to enable via F1 then go to STEP 5. 4. As soon as you reach minimum governor the status indicator should come on. If it does not then replace the Main Board. 5.
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TS310 MOD4A Digital Controller ModBus® Protocol Programmers Reference Guide Document No. 4933-0018 April 1998 Rev. 1 ModBus® is a registered trademark of Modicon, Inc.
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iii Copyright Copyright 1998 by TRICONEX La Marque, Texas, U.S.A. All rights reserved. No part of this work covered by the copyright hereon may be reproduced or copied in any form or by any means--graphic, electronic, or mechanical--without first receiving the written permission of TRICONEX, La Marque, Texas, U.S.A. Printed in U.S.A. TRICONEX reserves the right to make improvements in the design, construction, and appearance of its products without prior notice. April 1998 Rev.
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iv TS310 ModBus® Protocol Programmers Reference Guide Revision History Rev. A May 1990 General editorial revision. Removed reference to EICM. Deleted Performance Considerations paragraph. Added registration mark to ModBus®. Rev. B September 1990 General revision to upgrade to new TS310 software. Rev. 1 April 1998 General editorial revision only; reformatted including A4. April 1998 Rev.
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Contents v Contents REVISION HISTORY......................................................................................................................IV Chapter 1 - Overview ............................................................................................... 1 SCOPE................................................................................................................................................1 MODBUS® NETWORK ..................................................................
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vi TS310 ModBus® Protocol Programmers Reference Guide EVALUATION OF MODBUS® DATA......................................................................................... 20 Reading Coils 00001-00017......................................................................................................... 20 Reading Input Status 10001-10008.............................................................................................. 20 READING/WRITING TO HOLDING REGISTERS 40001-40095 30001-30009..............
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Chapter 1 - Overview 1 Chapter 1 - Overview Effective with Release 07 of the TS310 software, ModBus® will be the standard protocol for host communications. This will allow the TS310 to communicate directly to a wide variety of commonly available Programmable Logic Controllers and SCADA systems. Scope This document is for those who wish to program or configure devices to communicate with the TS310 using the ModBus® Protocol.
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2 TS310 ModBus® Protocol Programmers Reference Guide TS310 ModBus® Data Base The ModBus® Protocol implementation in the TS310 provides the following extensions to the Data Base as described above: • Digital points are defined as input status or coil status, for access via ModBus® functions 01, 02, and 05. • The channels defined are mapped into registers for access via ModBus® functions 03, 04, and 06.
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Chapter 1 - Overview 3 Analog Points Analog values are stored internally in the TS310 as 16-bit integers, and they are transmitted via ModBus® in the same format. Most values are scaled internally to 0 - 4000 counts. The ModBus® routines access the internally stored values directly. That is, if an analog input is configured as having a range in engineering units of 0.0 to 100.0, and the current value is 50.0, then reading that register will return a value of 2000.
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Chapter 2 - Description 5 Chapter 2 - Description ModBus® Message Protocol This section describes the message protocol which the TS310 is programmed to utilize when configured to communicate with a ModBus® network. This protocol controls the query and response cycle which takes place between a ModBus® master and its slaves, determining the following aspects of system operation: • How the master and slaves establish and break off contact. • How the sender and receiver are identified.
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6 TS310 ModBus® Protocol Programmers Reference Guide Sample Message Content This table compares the content of a sample message in RTU modes: Table A Sample Message Content for RTU Modes Query Message Header Station Address Function Code Starting Address (High Order) Starting Address (Low Order) Quantity of Points (High Order) Quantity of Points (Low Order) Error Check 0000 0000 0000 0001 0000 0010 0000 1000 0010 0001 0000 0011 0000 0101 1110 0100 Trailer None None Response Message Header Station Add
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Chapter 2 - Description 7 Message Field Definitions The following paragraphs explain the meaning of each field in the general message format. Station Address Field The Station Address field indicates which station a message is intended for. In RTU mode, the station address is one character (eight bits). The address range is 1-32. You can assign any address in this range to a station, but each address can be used only once in a network.
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8 TS310 ModBus® Protocol Programmers Reference Guide ModBus® Function Descriptions This section describes the functions currently implemented for the TRI-SEN ModBus® system.
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Chapter 2 - Description 9 Read Coil Status (Function Code 01) The Read Coil Status query requests the ON/OFF status of a group of logic coils from a station. The ModBus® Master can request the status of as many as 2000 coils with each query. (Although 2000 is the maximum parameter allowed, the query/response time required by some ModBus® Masters may dictate a much smaller quantity parameter.
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10 TS310 ModBus® Protocol Programmers Reference Guide Read Input Status (Function 02) The query and response for Read Input Status operate in the same manner as those for Read Coil Status (Function Code 01), except that the status of discrete inputs is obtained. Inputs are also numbered beginning with zero -- for example, Input 10001 equals zero, Input 10002 equals one, etc. The maximum number of discrete input points whose status can be obtained by the Read Input Status function is 2000.
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Chapter 2 - Description 11 Read Input Registers (Function Code 04) (Read Integer) This function operates in the same manner as the Read Holding Registers query (Function Code 03), except that the status of input registers is obtained. A ModBus® Master can address a maximum of 125 input registers with Function Code 04. (Although 125 is the maximum parameter allowed, the query/response time required by some ModBus® Masters may dictate a much smaller quantity parameter.
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12 TS310 ModBus® Protocol Programmers Reference Guide Preset Single Register (Function Code 06) This function modifies the content of one holding register. Any holding register that exists within the TS310 can have its contents changed by Modify Register Content. However, since the TS310 is actively scanning, it also can alter the content of any holding register at any time.
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Chapter 2 - Description 13 Error Detection & Exception Responses This section provides information on the following topics: • types of data communication errors. • CRC error checking. The TRISEN ModBus® system handles each type of error with specific methods. Transmission Errors The most frequent cause of transmission errors is noise: unwanted electrical signals on a communications channel.
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14 TS310 ModBus® Protocol Programmers Reference Guide CRC Checksum Calculation The following paragraphs describe the calculations that are performed during the CRC error check of ModBus® messages in RTU mode. CRC Error Check for RTU Mode During a CRC error check, the CRC-16 polynomial is used to compute a checksum for the entire message content.
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Chapter 2 - Description 15 TS310 ModBus® Data Definitions Coil Status The following digital points can be either read (with Function 1) or written (with Function 5) via ModBus®: Coil # Function 00001 Digital Output #1 00002 Digital Output #2 00003 Digital output #3 00004 Digital Output #4 00005 Digital Output #5 00006 Digital Output #6 00007 Digital Output #7 00008 Digital Output #8 00009 LCD Status/Alarm Indicator #1 00010 LCD Status/Alarm Indicator #2 00011 LCD Status/Alarm Indica
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16 TS310 ModBus® Protocol Programmers Reference Guide Input Status The following digital points can be read (with Function 2) via ModBus®: Input # Function: 10001 Digital Input #1 10002 Digital Input #2 10003 Digital Input #3 10004 Digital Input #4 10005 Digital Input #5 10006 Digital Input #6 10007 Digital Input #7 10008 Digital Input #8 For those digital I/O points configured as inputs, the value returned for the corresponding input status will indicate the logical state of the input.
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Chapter 2 - Description Register # 40021 40022 40023 40024 40025 40026 40027 40028 40029 40030 40031 40032 40033 40034 40035 40036 40037 40038 40039 40040 40041 40042 40043 40044 40045 40046 40047 40048 40049 40050 40051 40052 40053 40054 40055 40056 40057 40058 40059 40060 April 1998 Description 2nd PID Droop Synch. Integral Synch Derivative 3rd PID Prop.
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18 TS310 ModBus® Protocol Programmers Reference Guide Register # 40061 40062 40063 40064 40065 40066 40067 40068 40069 40070 40071 40072 40073 40074 40075 40076 40077 40078 40079 40080 40081 40082 40083 40084 40085 40086 40087 40088 40089 40090 40091 40092 40093 40094 40095 40096 40097 40098 40099 40100 April 1998 Description Max ma. Output #1 Min ma. Output #2 Max ma. Output #2 Local Load Limit Setpoint Ramp Rate kW Override Reset Parallel Isoc.
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Chapter 2 - Description 19 Input Registers The following channels are defined as input registers. They can be read (with Function 4). Register # Description : Channel # 30001 Speed Used 00 30002 Analog Input #1 01 30003 Analog Input #2 02 30004 Analog Input #3 03 30005 Analog Input #4 04 30006 Speed Input #1 10 30007 Speed Input #2 11 30008 Last Shutdown 97 30009 Computer Id. 98 April 1998 Rev.
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20 TS310 ModBus® Protocol Programmers Reference Guide Evaluation of ModBus® Data Reading Coils 00001-00017 COIL # DESCRIPTION 00001-00008 EXAMPLE: 00009-00012 D/O Conf. Output ModBus® N.C. N.C. energized de-energized coil off coil on N.O. N.O. energized de-energized coil on coil off The data received via ModBus® will indicate the true status of the status indicator.
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Chapter 2 - Description 21 Reading/Writing to Holding Registers 40001-40095 30001-30009 REGISTER # DESCRIPTION 30002-30005 The data read by ModBus® for these registers will be scaled. The scale will be determined by max. value in engineering units and 4000 counts. EXAMPLE: CH 123 - 500 Units (2nd PID Meas.
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22 TS310 ModBus® Protocol Programmers Reference Guide REGISTER # DESCRIPTION 40067 40087 40094 40160 40091 Scaled 0-1.000 is equal to 0-4000 counts. EXAMPLE: 40040-40041 40045-40046 40050-40051 40055-40056 40088-40090 ModBus® Return 8000 Counts 4000 Counts 400 Counts Scaled 0-10 is equal to 0-4000 counts. EXAMPLE: 40086 Actual 10 7 1 ModBus® Return 4000 Counts 2800 Counts 400 Counts Scaled 0-400 sec. is equal to 0-4000 counts. EXAMPLE: 40060-40063 Actual sec. 400 sec. 100 sec. 50 sec.
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TS310 MOD4A Digital Controller Auto-Configuration (ACON) Guide Document No. 4933-0019 April 1998 Rev.
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iii Copyright Copyright 1998 by TRICONEX La Marque, Texas, U.S.A. All rights reserved. No part of this work covered by the copyright hereon may be reproduced or copied in any form or by any means--graphic, electronic, or mechanical--without first receiving the written permission of TRICONEX, La Marque, Texas, U.S.A. Printed in U.S.A. TRICONEX reserves the right to make improvements in the design, construction, and appearance of its products without prior notice. April 1998 Rev.
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iv TS310 ACON Users Guide Revision History Rev. A July 1991 Minor technical revisions, converted to standard format. Rev. 1 April 1998 Editorial revisions only; reformatted including A4. April 1998 Rev.
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Contents v Contents REVISION HISTORY......................................................................................................................IV Chapter 1 - Introduction........................................................................................... 1 STANDARD ACON CONFIGURATIONS.......................................................................................1 WHEN TO USE ACON ....................................................................................................
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vi TS310 ACON Users Guide 4.2 REQUIRED ADDITIONAL ENTRIES..................................................................................... 28 4.3 OPTIONS ................................................................................................................................... 28 Optional I/O Assignments............................................................................................................ 29 4.4 MACHINE DATA LISTING..........................................................
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Contents vii Illustrations Figure 1. TS310 Keypad ........................................................................................................................2 Figure 2. ACON.010 Basic Speed Control Typical Application ..........................................................3 Figure 3. ACON.010 Wiring Diagram ................................................................................................12 Figure 4. ACON.020 Inlet/Suction Pressure Control Typical Application ................
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Chapter 1 - Introduction 1 Chapter 1 - Introduction TS310 Auto-Configuration is a convenient feature that allows the controller to be configured for standard applications by making a single entry. This single entry automatically loads most of the data required. All that remains is to enter basic machine data, and to connect the unit as shown in the wiring instructions. Auto-Configuration is referred to in this manual as ACON. It is usually followed by a particular configuration variation; e.g.
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2 TS310 ACON Users Guide Procedure for Loading ACON into a TS310 To initially, automatically configure your TS310 with a version of ACON: • Access Channel 99 and enter the password. (Refer to TS310 Configuration Guide.) 5 If no ACON configuration is present the display will read: 99 HELLO If an ACON configuration is present it will display the ACON number; e.g.: 99 .
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Chapter 2 - Basic Speed Control ACON.010 3 Chapter 2 - Basic Speed Control ACON.010 2.1 Application Description ACON.010 is the simplest ACON configuration.
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4 TS310 ACON Users Guide Startup Startup can be manual or automatic. Manual Start. The operator presses the TS310 [START] button then opens the steam block or T&T valve slowly to bring the machine up to governor speed. Auto Start. The block valve is left open. Pressing [START] ramps the governor valve open and rapidly controls the machine up to the governor speed. This mode of operation is sometimes called "Fast Start".
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Chapter 2 - Basic Speed Control ACON.010 5 Input/Output Field devices required for the basic configuration are described below. Refer to the wiring chapter of ACON.020 for field connections. • Two magnetic speed pickups: Recommended types: TRISEN #7120 TRISEN #7121 A ferrous toothed gear is also required. TRISEN can provide the proper gear upon request. • Governor/transducer: A 4-20 mA actuator system is required. Action must be direct (e.g.
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6 TS310 ACON Users Guide 2.2 Required Additional Entries Description CH# Min. Governor 15 Max. Governor 16 Overspeed Set 17 Speed Tuning 20-23 Analog Input 48-49 (Preset : 46=1.00, 47=5.00) Setpoint Ramp Rate 67 No. Gear Teeth 89 I/O Assignments Speed Pickup #1 PU-1 Speed Pickup #2 PU-2 Governor Valve AO-1 Trip Contact DO-8 2.3 Options In addition to the standard features, ACON.
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Chapter 2 - Basic Speed Control ACON.010 7 Optional I/O Assignments I/O Required Field Devices (Customer Supplied) AI-1 Customer Remote Speed Set DI-1 Remote Start Contact DI-2 Remote Stop Contact DI-3 Remote Raise Contact DI-4 Remote Lower Contact DI-5 Start Permissive Contact 2.4 Machine Data Listing ACON.
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8 TS310 ACON Users Guide ACON.010 MACHINE DATA LISTING FUNCTION * CH DISPLAY RANGE SPEED DROOP T 23 0.0 0-20 PERCENT 2ND PID PROPORTIONAL BAND T 24 0.0 0-1000 PERCENT 2ND PID INTEGRAL (RESET) T 25 0.0 0-500 SECONDS 2ND PID DERIVATIVE (RATE) T 26 0.0 0-200 SECONDS 2ND PID DROOP T 27 0.0 0-20 PERCENT SYNCHRONIZING INTEGRAL T 28 0.0 0-500 SECONDS SYNCHRONIZING DERIVATIVE T 29 0.0 0-200 SECONDS 3RD PID PROPORTIONAL BAND T 30 0.
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Chapter 2 - Basic Speed Control ACON.010 9 ACON.010 MACHINE DATA LISTING FUNCTION * CH DISPLAY RANGE UNITS MAXIMUM ANALOG INPUT #4 K 59 0.0 0-10 VDC MINIMUM ENGRG UNITS #4 K 60 0 0-29999 _____ MAXIMUM ENGRG UNITS #4 K 61 0 0-29999 _____ #1 ANALOG OUTPUT MINIMUM K 62 4.0 0-20 m AMPS #1 ANALOG OUTPUT MAXIMUM K 63 20.0 0-20 m AMPS #2 ANALOG OUTPUT MINIMUM K 64 0.0 0-20 m AMPS #2 ANALOG OUTPUT MAXIMUM K 65 0.0 0-20 m AMPS LOAD LIMIT K 66 100.
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10 TS310 ACON Users Guide ACON.010 MACHINE DATA LISTING FUNCTION * CH DISPLAY RANGE UNITS STARTUP PROP. BAND T 94 0.0 0-1000 SECONDS STARTUP INTEGRAL (RESET) T 95 0.0 0-500 SECONDS HOUR METER K 96 0 LAST SHUTDOWN D 97 0000 RECORDS TRIPS COMPUTER ID K 98 0 RS422 ADDRESS PASSWORD K 99 6883 * READS HOURS FOUR DIGITS The channels marked with the asterisks will require data entry before the TS310 can be used. K = Channel is password protected.
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Chapter 2 - Basic Speed Control ACON.
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12 TS310 ACON Users Guide 7 LOOP POWER - LOWER CONTACT 6 + + LOOP 7 POWER 6 RAISE CONTACT 7 LOOP POWER - START PERMISSIVE CONTACT LOOP POWER + LOOP 7 POWER STOP CONTACT 6 7 6 + - TRIP SOLENOID + + LOOP 7 POWER 6 START CONTACT SPEED PICKUPS PASSIVE TYPE (TYP 3 PLS) TS310 POWER SUPPLY 4 - + - + - + - + - + - H + CUSTOMER POWER 90-250 VAC N LOAD 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 1 2 3 4 5 6 7 8 9 10 11 12 13
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Chapter 3 - Inlet/Suction Pressure Control ACON.020 13 Chapter 3 - Inlet/Suction Pressure Control ACON.020 3.1 Application Description ACON.20 is a preset configuration that allows the 2nd Proportional, Integral, Derivative (PID) control algorithm to control either inlet or suction pressure.
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14 TS310 ACON Users Guide Startup Startup can be manual or automatic. Manual Start. The operator presses the TS310 [START] button then opens the steam block or T&T valve slowly to bring the machine up to governor speed. Auto Start. The block valve is left open. Pressing [START] ramps the governor valve open and rapidly controls the machine up to the governor speed. This mode of operation is sometimes called "Fast Start".
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Chapter 3 - Inlet/Suction Pressure Control ACON.020 15 Input/Output Field devices required for the basic configuration are described below. Refer to the wiring chapter of ACON.020 for field connections. • Two magnetic speed pickups Recommended types: TRISEN #7120 TRISEN #7121 A ferrous toothed gear is also required. TRISEN can provide the proper gear upon request. • Governor/transducer: A 4-20 mA actuator system is required. Action must be direct (e.g.
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16 TS310 ACON Users Guide 3.2 Required Additional Entries: Description CH# Min. Governor 15 Max. Governor 16 Overspeed Set 17 Speed Tuning 20-22 2nd PID Tuning 24-26 Analog Input 52-53 (Preset: Setpoint Ramp Rate 67 No. Gear Teeth 89 Analog Input 50-53 (Preset = 50-1.00, 51-5.00, 54-1.00, 55-5.00) 50=1.00, 51=5.00) I/O Assignments Speed Pickup #1 PU-1 Speed Pickup #2 PU-2 Governor Valve AO-1 Trip Contact DO-8 2nd PID Inputs AI-1A or AI-1B 3.
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Chapter 3 - Inlet/Suction Pressure Control ACON.020 17 In addition to the devices listed above, some minor configuration must be done. • To use the Remote Speed Set, two configuration entries must be made: Channel # 48 49 • Data Min. Governor Speed Max. Governor Speed To use the Remote 2nd PID, set three configuration entries must be made: Channel # 56 57 71 Data Min. Pressure Max. Pressure 0500 All other options require no additional configuration entries.
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18 TS310 ACON Users Guide ACON.020 MACHINE DATA LISTING FUNCTION * CH DISPLAY 3RD PID SETPOINT D 07 0 ANALOG OUTPUT #1 D 08 0.0 0-100 PERCENT ANALOG OUTPUT #2 D 09 0.
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Chapter 3 - Inlet/Suction Pressure Control ACON.020 19 ACON.020 MACHINE DATA LISTING FUNCTION * CH DISPLAY RANGE UNITS MAX #2 NOZZLE VALVE K 43 0.0 0-100 PERCENT MIN #3 NOZZLE VALVE K 44 0.0 0-100 PERCENT MAX #3 NOZZLE VALVE K 45 0.0 0-100 PERCENT MIN ANALOG INPUT #1 K 46 1.0 0-10 VDC MAX ANALOG INPUT #1 K 47 5.0 0-10 VDC * MIN ENGRG UNITS #1 K 48 _____ 0-29999 _____ * MAX ENGRG UNITS #1 K 49 _____ 0-29999 _____ MIN ANALOG INPUT #2 K 50 1.
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20 TS310 ACON Users Guide ACON.020 MACHINE DATA LISTING FUNCTION * CH DISPLAY RANGE CONTACT I/O #8 K 79 3320 WORD #10 SPEED CONTROL K 80 0330 WORD #11 SPEED CONTROL K 81 0210 WORD #12 SPEED CONTROL K 82 3110 WORD #13 2ND PID CONTROL K 83 1100 WORD #14 STATUS INDICATORS K 84 1205 UNITS WORD #15 Some software releases had 1285 as Word 15. 1205 is correct and current software has been changed. SPEED SWITCH CONF.
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Chapter 3 - Inlet/Suction Pressure Control ACON.020 21 3.5 Wiring I/O PU-1 Device Speed Pickup Remarks Standard Magnetic Speed Pickup TRISEN P/N 7120, 7121, etc. Wiring 1 2 INSULATE SHIELD 3 PU-2 Speed Pickup Standard Magnetic Speed Pickup TRISEN P/N 7120, 7121, etc. ACON-10 21 22 INSULATE SHIELD 23 AO-1 Actuator Direct Acting 4-20 mA Governor Actuator, I/P Transducer, HCX21, etc.
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22 TS310 ACON Users Guide I/O AI-2A or AI-2B Device Customer Signal Remarks 4-20 mA Signal From Customer Device for 2nd PID Measurement Wiring CUSTOMER DEVICE 10 250 Ω 11 + S10 INSULATE SHIELD SHIELD TERMINAL #10 AI-3 Customer Signal 4-20 mA Signal From Customer Device for Remote 2nd PID Setpoint ACON-20 CUSTOMER DEVICE 12 250 Ω 13 + S12 INSULATE SHIELD SHIELD TERMINAL #12 DI-1 Remote Start Contact Close Contact to Start Turbine ACON-21 24 START CONTACT 25 + - LOOP POWER * DI-2 Remote
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Chapter 3 - Inlet/Suction Pressure Control ACON.
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Chapter 4 - Backpressure/Discharge Pressure Control ACON.021 25 Chapter 4 - Backpressure/Discharge Pressure Control ACON.021 4.1 Application Description ACON.21 is a preset configuration that allows the 2nd Proportional, Integral, Derivative (PID) to control either backpressure (exhaust) or discharge pressure. This configuration provides: Speed control.
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26 TS310 ACON Users Guide Startup Startup can be manual or automatic. Manual Start. The operator presses the TS310 [START] button then opens the steam block or T&T valve slowly to bring the machine up to governor speed. Auto Start. The block valve is left open. Pressing [START] ramps the governor valve open and rapidly controls the machine up to the governor speed. This mode of operation is sometimes called "Fast Start".
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Chapter 4 - Backpressure/Discharge Pressure Control ACON.021 27 Input/Output Field devices required for the basic configuration are described below. Refer to the wiring chapter of ACON.020 for field connections. • Two magnetic speed pickups Recommended types: TRISEN #7120 TRISEN #7121 A ferrous toothed gear is also required. TRISEN can provide the proper gear upon request. • Governor/transducer: A 4-20 mA actuator system is required. Action must be direct (eg.
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28 TS310 ACON Users Guide 4.2 Required Additional Entries Description Min. Governor Max. Governor Overspeed Set Speed Tuning 2nd PID Tuning Setpoint Ramp Rate No. Gear Teeth Analog Input CH# 15 16 17 20-22 24-26 67 89 52-53 (Preset: 50=1.00, 51=5.00) I/O Assignments Speed Pickup #1 Speed Pickup #2 Governor Valve Trip Contact 2nd PID Input PU-1 PU-2 AO-1 DO-8 AI-1A or AI-1B 4.3 Options In addition to the standard features ACON.
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Chapter 4 - Backpressure/Discharge Pressure Control ACON.021 29 Optional I/O Assignments I/O AI-1 AI-2A AI-2B AI-3 DI-1 DI-2 DI-3 DI-4 DI-5 Required Field Device (Customer Supplied) Customer Remote Speed Set 2nd PID Measurement (Turbine Backpressure) 2nd PID Measurement (Compressor or Pump Discharge Pressure) Customer Remote 2nd PID Set Remote Start Contact Remote Stop Contact Remote Raise Contact Remote Lower Contact Start Permissive Contact 4.4 Machine Data Listing ACON.
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30 TS310 ACON Users Guide ACON.021 MACHINE DATA LISTING FUNCTION CH DISPLAY RANGE UNITS SPEED PROPORTIONAL BAND T 20 50.0 0-1000 PERCENT SPEED INTEGRAL (RESET) T 21 5.0 0-500 SECONDS SPEED DERIVATIVE (RATE) T 22 0.0 0-200 SECONDS SPEED DROOP T 23 0.0 0-20 PERCENT 2ND PID PROPORTIONAL BAND T 24 75.0 0-1000 PERCENT 2ND PID INTEGRAL (RESET) T 25 10.0 0-500 SECONDS 2ND PID DERIVATIVE (RATE) T 26 0.0 0-200 SECONDS 2ND PID DROOP T 27 0.
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Chapter 4 - Backpressure/Discharge Pressure Control ACON.021 31 ACON.021 MACHINE DATA LISTING FUNCTION CH DISPLAY RANGE UNITS MIN ENGRG UNITS #3 K 56 _____ 0-29999 _____ MAX ENGRG UNITS #3 K 57 _____ 0-29999 _____ MIN ANALOG INPUT #4 K 58 0.0 0-10 VDC MAX ANALOG INPUT #4 K 59 0.0 0-10 VDC MIN ENGRG UNITS #4 K 60 0 0-29999 _____ MAX ENGRG UNITS #4 K 61 0 0-29999 _____ #1 ANALOG OUTPUT MIN K 62 4.0 0-20 m AMPS #1 ANALOG OUTPUT MAX K 63 20.
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32 TS310 ACON Users Guide ACON.021 MACHINE DATA LISTING FUNCTION CH DISPLAY RANGE UNITS F VALUE K 91 0.00 0-10.0 PERCENT B VALUE K 92 0.0 0-100 PERCENT GEAR RATIO K 93 0.000 0-9.99 RATIO STARTUP PROP. BAND T 94 0.0 0-1000 SECONDS STARTUP INTEGRAL (RESET) T 95 0.
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Chapter 4 - Backpressure/Discharge Pressure Control ACON.021 33 4.5 Wiring I/O PU-1 Device Speed Pickup Remarks Standard Magnetic Speed Pickup TRISEN P/N 7120, 7121, etc. Wiring 1 2 INSULATE SHIELD 3 PU-2 Speed Pickup Standard Magnetic Speed Pickup TRISEN P/N 7120, 7121, etc. ACON-10 21 22 INSULATE SHIELD 23 AO-1 Actuator Direct Acting 4-20 mA Governor Actuator, I/P Transducer, HCX21, etc.
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34 TS310 ACON Users Guide I/O AI-2A or AI-2B Device Customer Signal Remarks 4-20 mA Signal From Customer Device for 2nd PID Measurement Wiring CUSTOMER DEVICE 10 250 Ω 11 + S10 INSULATE SHIELD SHIELD TERMINAL #10 AI-3 Customer Signal 4-20 mA Signal From Customer Device for Remote 2nd PID Setpoint ACON-20 CUSTOMER DEVICE 12 250 Ω 13 + S12 INSULATE SHIELD SHIELD TERMINAL #12 DI-1 Remote Start Contact Close Contact to Start Turbine ACON-21 24 START CONTACT 25 + - LOOP POWER * DI-2 Remote
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Chapter 4 - Backpressure/Discharge Pressure Control ACON.
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Chapter 5 - Synchronous Generator Control ACON.030 37 Chapter 5 - Synchronous Generator Control ACON.030 5.1 Application Description ACON.30 provides a preset configuration for a basic synchronous generator control. It provides: Speed control.
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38 TS310 ACON Users Guide Startup Startup can be manual or automatic. Manual Start. The operator presses the TS310 [START] button then opens the steam block or T&T valve slowly to bring the machine up to governor speed. Auto Start. The block valve is left open. Pressing [START] ramps the governor valve open and rapidly controls the machine up to the governor speed. This mode of operation is sometimes called "Fast Start".
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Chapter 5 - Synchronous Generator Control ACON.030 39 Input/Output Field devices required for the basic configuration are described below. Refer to the wiring chapter of ACON.030 for field connections. • Two magnetic speed pickups Recommended types: TRISEN #7120 TRISEN #7121 A ferrous toothed gear is also required. TRISEN can provide the proper gear upon request. • Governor/transducer: A 4-20 mA actuator system is required. Action must be direct (e.g.
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40 TS310 ACON Users Guide 5.2 Required Additional Entries Description CH# Min. Governor 15 Max. Governor 16 Overspeed Set 17 Speed Tuning 20-23 Setpoint Ramp Rate 67 No. Gear Teeth 89 Analog Input 46-53 I/O Assignments Speed Pickup #1 PU-1 Speed Pickup #2 PU-2 Governor Valve AO-1 Trip Contact DO-1 Load Breaker DI-6 5.3 Options In addition to the standard features ACON.
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Chapter 5 - Synchronous Generator Control ACON.030 41 In addition to the devices listed above some minor configuration must be done. • To use the Remote Speed Set you must make two entries into the configuration: Channel # 48 49 • Data Min. Governor Speed Max. Governor Speed To use the KW Limiting function the following additions and changes to the configuration must be made: Channel # 50 51 52 53 68 70 87 Data Min. Signal In Max. Signal In Min. KW Max.
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42 TS310 ACON Users Guide 5.4 Machine Data Listing ACON.030 MACHINE DATA LISTING FUNCTION * CH DISPLAY RANGE UNITS SPEED USED D 00 0 0-29999 RPM ANALOG INPUT #1 D 01 0 0-29999 VARIES ANALOG INPUT #2 D 02 0 0-29999 VARIES ANALOG INPUT #3 D 03 0 0-29999 VARIES ANALOG INPUT #4 D 04 0 0-29999 VARIES SPEED REFERENCE D 05 0 0-29999 RPM 2ND PID SETPOINT D 06 0 VARIES 3RD PID SETPOINT D 07 0 VARIES ANALOG OUTPUT #1 D 08 0.
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Chapter 5 - Synchronous Generator Control ACON.030 43 ACON.030 MACHINE DATA LISTING FUNCTION * CH DISPLAY RANGE UNITS V2 MIN LIMIT K 34 0.0 0-100 PERCENT V2 MAX LIMIT K 35 0.0 0-100 PERCENT IDLE SPEED K 36 0 0-20000 RPM IDLE FUEL K 37 0 0-100 PERCENT V1 MIN LIMIT K 38 0.0 0-100 PERCENT V1 MAX LIMIT K 39 100.0 0-100 PERCENT MIN #1 NOZZLE VALVE K 40 0.0 0-100 PERCENT MAX #1 NOZZLE VALVE K 41 0.0 0-100 PERCENT MIN #2 NOZZLE VALVE K 42 0.
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44 TS310 ACON Users Guide ACON.
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Chapter 5 - Synchronous Generator Control ACON.030 45 5.5 Wiring I/O PU-1 Device Speed Pickup Remarks Standard Magnetic Speed Pickup TRISEN P/N 7120, 7121, etc. Wiring 1 2 INSULATE SHIELD 3 PU-2 Speed Pickup Standard Magnetic Speed Pickup TRISEN P/N 7120, 7121, etc. ACON-10 21 22 INSULATE SHIELD 23 AO-1 Actuator Direct Acting 4-20 mA Governor Actuator, I/P Transducer, HCX21, etc.
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46 TS310 ACON Users Guide I/O DI-2 Device Remote Stop Contact Remarks Close Contact to Trip Turbine Wiring 26 STOP CONTACT 27 + - LOOP POWER * DI-3 Remote Raise Contact Close Contact to Ramp Turbine Speed Up ACON-16 28 RAISE CONTACT 29 + - LOOP POWER * DI-4 Remote Lower Contact Close Contact to Ramp Turbine Speed Down ACON-17 30 LOWER CONTACT 31 + - LOOP POWER * DI-5 Start Permissive Contact Close Contact to Inhibit Turbine Start ACON-18 32 START PER.
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Chapter 5 - Synchronous Generator Control ACON.
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Chapter 6 - Speed/Load, Extraction Control ACON.040 49 Chapter 6 - Speed/Load, Extraction Control (ACON.040) 6.1 Application Description ACON.040 is basic extraction control. Only TS310s with two valve output can utilize ACON.040.
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50 TS310 ACON Users Guide Startup Startup can be manual or automatic. Manual Start. The operator presses the TS310 [START] button then opens the steam block or T&T valve slowly to bring the machine up to governor speed. Auto Start. The block valve is left open. Pressing [START] ramps the governor valve open and rapidly controls the machine up to the governor speed. This mode of operation is sometimes called "Fast Start".
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Chapter 6 - Speed/Load, Extraction Control ACON.040 51 Input/Output Field devices required for the basic configuration are described below. Refer to the wiring chapter of ACON.040 for field connections. • Two magnetic speed pickups Recommended types: TRISEN #7120 TRISEN #7121 A ferrous toothed gear is also required. TRISEN can provide the proper gear upon request. • Governor/Extraction transducers: A 4-20 mA actuator system is required. Action must be direct (e.g.
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52 TS310 ACON Users Guide 6.2 Required Additional Entries Description CH# Min. Governor 15 Max. Governor 16 Overspeed Set 17 Speed Tuning 20-22 Extraction Tuning 30-32 Analog Input 52-53 (Preset: 50=1.00, 51=5.00) Setpoint Ramp Rate 67 No. Gear Teeth 89 H Value 90 F Value 91 B Value 92 I/O Assignments Speed Pickup #1 PU-1 Speed Pickup #2 PU-2 Governor Valve AO-1 Trip Contact DO-1 Extraction Pressure In AI-2 Extraction Valve AO-2 6.
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Chapter 6 - Speed/Load, Extraction Control ACON.040 53 In addition to the devices listed above some minor configuration must be done. • To use the Remote Speed Set the following entries must be made: Channel # 48 49 56 57 71 Data Min. Governor Speed Max. Governor Speed Min. Ext. Press Max. Ext. Press 1000 Optional I/O Assignments I/O Required Field Device (Customer Supplied) AI-1 Customer Remote Speed Set AI-2 Extraction Pressure Input AI-3 Customer Remote Ext.
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54 TS310 ACON Users Guide ACON.
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Chapter 6 - Speed/Load, Extraction Control ACON.040 55 ACON.040 MACHINE DATA LISTING FUNCTION * CH DISPLAY RANGE UNITS * MIN ENGRG UNITS #1 K 48 _____ 0-29999 _____ * MAX ENGRG UNITS #1 K 49 _____ 0-29999 _____ MIN ANALOG INPUT #2 K 50 1.0 0-10 VDC MAX ANALOG INPUT #2 K 51 5.0 0-10 VDC MIN ENGRG UNITS #2 K 52 _____ 0-29999 _____ MAX ENGRG UNITS #2 K 53 _____ 0-29999 _____ MIN ANALOG INPUT #3 K 54 1.0 0-10 VDC MAX ANALOG INPUT #3 K 55 5.
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56 TS310 ACON Users Guide ACON.040 MACHINE DATA LISTING FUNCTION * CH DISPLAY 2ND PID CONTROL K 83 0000 STATUS INDICATORS K 84 1209 RANGE UNITS WORD #14 WORD #15 Some software releases had 1289 for Word 15. 1209 is correct and current software has been changed. SPEED SWITCH CONF.
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Chapter 6 - Speed/Load, Extraction Control ACON.040 I/O PU-2 Device Speed Pickup Remarks Standard Magnetic Speed Pickup TRISEN P/N 7120, 7121, etc. 57 Wiring 21 22 INSULATE SHIELD 23 AO-1 Actuator Direct Acting 4-20 mA Governor Actuator, I/P Transducer, HCX21, etc. ACON-11 16 17 INSULATE SHIELD S17 SHIELD TERMINAL #17 AO-1 Actuator Direct Acting 4-20 mA Governor Actuator, I/P Transducer, HCX21, etc.
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58 TS310 ACON Users Guide I/O AI-3 Device Customer Signal Remarks 4-20 mA Signal from Customer Device for Remote 3rd PID Setpoint Wiring CUSTOMER DEVICE 12 250 Ω 13 + S12 INSULATE SHIELD SHIELD TERMINAL #12 DI-1 Remote Start Contact Close Contact to Start Turbine ACON-21 24 START CONTACT 25 + - LOOP POWER * DI-2 Remote Stop Contact Close Contact to Trip Turbine ACON-15 26 STOP CONTACT 27 + - LOOP POWER * DI-3 Remote Raise Contact Close Contact to Ramp Turbine Speed Up ACON-16 28 RA
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Chapter 6 - Speed/Load Extraction Control ACON.
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TS310 MOD4A Digital Controller Extraction Admission Operation Guide Document No. 4933-0016 April 1998 Rev.
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iii Copyright Copyright 1998 by TRICONEX La Marque, Texas, U.S.A. All rights reserved. No part of this work covered by the copyright hereon may be reproduced or copied in any form or by any means--graphic, electronic, or mechanical--without first receiving the written permission of TRICONEX, La Marque, Texas, U.S.A. Printed in U.S.A. TRICONEX reserves the right to make improvements in the design, construction, and appearance of its products without prior notice. April 1998 Rev.
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iv TS310 Extraction /Admission Operation Users Guide Revision History Rev. A September 1990 General editorial revision. Rev. B July 1991 General editorial revision. Rev. 1 April 1998 General editorial revision only; reformatted including A4 April 1998 Rev.
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Contents v Contents REVISION HISTORY...................................................................................................................... IV Contents.................................................................................................................... v Chapter 1 - Introduction........................................................................................... 1 Chapter 2 - Definitions ..................................................................................
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Chapter 1 - Introduction 1 Chapter 1 - Introduction The TRISEN TS310 digital controller is the most flexible and versatile control system available today for operating extraction or admission steam turbines. A number of features make this possible: • The microprocessor-based controller and accompanying sequencing capabilities provide extremely wide range control which is so necessary for accurate, dependable control of extraction turbines.
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Chapter 2 - Definitions 3 Chapter 2 - Definitions Confusion sometimes surrounds the meanings and functions of EXTRACTION turbines and ADMISSION turbines. Before proceeding further, let us clarify what these are and what they do. INLET EXTRACTION EXHAUST INLET V1 EXHAUST V1 Steam is extracted from an extraction turbine. INLET ADMISSION EXT/ADM EXHAUST Steam is admitted to an admission turbine.
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Chapter 3 - Basics 5 Chapter 3 - Basics A typical extraction/admission steam turbine can be created by mounting two simple steam turbines on the same shaft as shown below. This assembly will not have the external appearance of a production-line extraction/admission turbine since an extraction/admission turbine is constructed with both rotors and both inlet steam valves integrated into the same case.
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6 TS310 Extraction /Admission Operation Users Guide SEVERAL OBSERVATIONS ARE IMMEDIATELY APPARENT: If V1 is open and V2 is closed, the HP case will produce 5000 kW from 900 PSI steam; 100,000 lbs/hr of steam will flow to the intermediate steam header; the LP case will produce zero kilowatts; and no steam will flow to the condenser.
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Chapter 3 - Basics 7 If V1 is half open and V2 is half open, the HP case will produce 2500 kW from 900 PSI steam; the LP case will produce 2500 kW from 100 PSI steam; and since the 50,000 lbs/hr of steam exhausting from the HP case will be consumed or admitted to the LP case, no steam will be consumed from, or contributed to the intermediate header. There will be no steam extracted or admitted in-so-far as the intermediate or extraction steam header is concerned.
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8 TS310 Extraction /Admission Operation Users Guide 3.3 Speed (Load) Control Conversely, now consider what must occur to change power output (or speed) without affecting the extraction steam flow. EXAMPLE: Power must be increased by 1000 kW while at the same time holding extraction steam flow constant at 20,000 lbs/hr. Open V1 from 60% to 70%. V1 will now pass 70,000 lbs/hr of 900 PSI steam which will produce 3500 kW from the HP case. Open V2 from 40% to 50%.
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Chapter 3 - Basics 9 3.5 Operation Variations Until now, our model turbine could be used to extract steam (from the turbine to the intermediate steam header) or to admit steam (to the turbine from the intermediate steam header), depending upon the relative positions of V1 and V2 steam inlet valves. However, most steam turbines are intended to be extraction only or admission only turbines. In earlier mechanical governors, the valve linkage geometry was constructed so that V2 could not open wider than V1.
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10 TS310 Extraction /Admission Operation Users Guide These two ratios match the controller to the individual turbine for each application. These are keyboard entered values and can be adjusted for error at a later time if it is found that the extraction map is not correct or if modifications have been made to the turbine which would affect these values. Earlier it was mentioned that the controller must be aware of the lost power of the turbine; that power devoted to friction, accessories, etc.
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Chapter 3 - Basics 11 3.7 Calculation of F, H and B Values The TS310 is configured to operate an extraction steam turbine by calculating the F, H and B values with information obtained from the manufacturer’s EXTRACTION MAP (turbine performance curve). 1. Extrapolate the zero extraction line to the origin. 2. Extrapolate the pressure rise line until it intersects the maximum steam flow line.
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12 TS310 Extraction /Admission Operation Users Guide MAXIMUM STEAM FLOW A B SE LIN RI AC T T EXTRAC F4 ES TION LIN PR E N CONSTA SS U RE EX TR MA XIM UM STEAM FLOW IO N E LIN E F1 C RO ZE EX L ION CT A TR INE POWER H3 H4 H0 H5 H1 FHB_CALC H2 F, H, & B Values After calculating F, H and B, these values are entered into the controller configuration.
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Chapter 3 - Basics 13 F Value The F value is a ratio which should represent the steam flow capacity of V2 (the low pressure case) divided by the steam flow capacity of V1 (the high pressure case). If the F value is incorrect, this will be reflected whenever a change in speed or load is made. If speed or load is increased, V1 and V2 both should open in such a manner that the increased flow through V1 is the same as the increased steam flow through V2.
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Chapter 4 - Control Actions 15 Chapter 4 - Control Actions 4.1 Control Variations Extraction/admission steam turbines can be controlled in a number of different modes. Different variables associated with the turbine are controllable. These are: power output (or speed); inlet steam pressure; extraction steam pressure (or admission); and backpressure (sometimes called exhaust pressure). Since there are only two steam inlet valves, only two of these variables can be controlled simultaneously.
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16 TS310 Extraction /Admission Operation Users Guide 4.2 Control Action/Actuator Action Some controllers must be direct-acting; some must be reverse-acting. The nature of extraction or admission control determines that the TS310 must be reverse-acting. That is, an increase in extraction steam pressure must produce an action that will decrease the extraction steam flow, etc. Some might say that this is arbitrary.
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Chapter 5 - Function Configuration 17 Chapter 5 - Function Configuration Channel 86 provides a variety of options to use with extraction/admission control. As described under CONTROL ACTION/ACTUATOR ACTION, (paragraph 4.2) CH86A must be configured (0XXX) for direct acting actuators (those that close at 4 milliamps) or must be configured (2XXX) for reverse acting actuators, (those that are closed at 20 milliamps).
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Chapter 6 - Extraction/Admission Enabling 19 Chapter 6 - Extraction/Admission Enabling 6.1 Enabling Extraction-Variations The user can choose between several options to enable extraction control. These are: • (X10X) = V2 enabled always • (X12X) = V2 enabled at minimum governor • (X14X) = V2 enabled by F2 function key Option 1 is configured (X10X) in Channel 86. With this option, extraction control is always enabled.
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20 TS310 Extraction /Admission Operation Users Guide ! WARNING Options 2) and 3) should not be used if there is no check valve in the extraction steam line. Trying to enable these options with a STOP VALVE in the extraction steam line, and then opening the STOP VALVE after the V2 valve has moved to some intermediate position is a cumbersome procedure and could produce hazardous consequences. This is not recommended. 6.2 Enabling Admission Control Option 1 in paragraph 6.
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Chapter 7 - Limiting Functions/Decoupling 21 Chapter 7 - Limiting Functions/Decoupling 7.1 Decoupling The D position in Channel 86 can be configured: • (XXX0) = NO DECOUPLING • (XXX1) = DECOUPLE V1 VALVE • (XXX2) = DECOUPLE V2 VALVE This option is designed for use with synchronous generator applications only. In such applications, it may be desirable to operate extraction pressure control simultaneously with inlet pressure control with power output unregulated.
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22 TS310 Extraction /Admission Operation Users Guide Conversely, it may be desirable to operate extraction pressure control and backpressure control simultaneously without controlling power output. In this case, decoupling V2 will operate as follows: When the turbine is in DROOP control (connected to the utility grid), backpressure control can be enabled.
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Chapter 8 - Analog/Digital Inputs/Outputs 23 Chapter 8 - Analog/Digital Inputs/Outputs 8.1 Analog Inputs-Setpoint Several analog inputs to the TS310 are specific to the 3RD PID control which regulates the extraction/admission functions of the TS310.
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Chapter 9 - Troubleshooting Extraction Control 25 Chapter 9 - Troubleshooting Extraction Control Symptom Cause Troubleshooting Steps Extraction pressure rises as load increases Incorrect F VALUE in Channel 91. Make F VALUE smaller. Extraction pressure falls as load increases Incorrect F VALUE in Channel 91. Make F VALUE larger. Speed (or load) increases when extraction flow increases Incorrect H VALUE in Channel 90. Make H VALUE smaller.
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TS310 MOD4A Digital Controller Synchronous Generator Operation Guide Document No. 4933-0015 April 1998 Rev.
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iii Copyright Copyright 1998 by TRICONEX La Marque, Texas, U.S.A. All rights reserved. No part of this work covered by the copyright hereon may be reproduced or copied in any form or by any means--graphic, electronic, or mechanical--without first receiving the written permission of TRICONEX, La Marque, Texas, U.S.A. Printed in U.S.A. TRICONEX reserves the right to make improvements in the design, construction, and appearance of its products without prior notice. April 1998 Rev.
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iv TS310 Synchronous Generator Operation Revision History Rev. A September 1990 General technical and editorial revision. Rev. B July 1991 Technical revisions to the following: Paragraphs 8.3, 8.4, 8.5. Rev. 1 April 1998 General technical and editorial revisions; reformatted including A4. April 1998 Rev.
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Contents v Contents REVISION HISTORY...................................................................................................................... IV Contents.................................................................................................................... v FIGURES .......................................................................................................................................... VI Chapter 1 - Introduction.................................................
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vi TS310 Synchronous Generator Operation Chapter 9 - Parallel Isochronous Operation .........................................................23 9.1 PARALLEL ISOCHRONOUS DELAY.................................................................................... 23 9.2 PARALLEL ISOCHRONOUS DEFINITION........................................................................... 23 Chapter 10 - Troubleshooting Generator Operation ............................................25 Figures Figure 1. Figure 2.
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Chapter 1 - Introduction 1 Chapter 1 - Introduction The control of synchronous generator drives is simple and straightforward if one is already familiar with the control principles involved, plus the peculiarities of synchronous generators and electrical transmission. Two kinds of control modes are used for most generator drives: DROOP control and FREQUENCY control. Frequency control is the more sophisticated of the two but seems to be the easiest to understand.
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Chapter 2 - Droop Control 3 Chapter 2 - Droop Control 2.1 Droop Control - Visual Examples Visualizing DROOP control is somewhat difficult at first until we realize just how simple (and useful) it is. A good analogy is a float-controlled level in a tank. INLET VALVE SETPOINT In this figure, the drain valve D has been completely closed. The inlet valve I will let water flow into the tank until the float F rises to the setpoint S (that level where the float causes valve I to shut off completely).
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4 TS310 Synchronous Generator Operation It is important to understand that the level will never return to the setpoint (or reference) so long as there is demand at the drain valve. The only time the level will be at the reference is when the load is zero. There will be a different level corresponding to each set of load conditions. The system does not automatically reset to eliminate the offset or measurement error caused by a load change. There are other types of load change which can affect the level.
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Chapter 2 - Droop Control 5 The level control and the flyball governor are both examples of PROPORTIONAL ONLY or DROOP control. The diagram below shows how a governor valve will open as the speed falls (DROOPs) and how the governor valve will close as the speed rises. The mechanical characteristics of the governor valve (linkage, spring tension, etc.) will determine the maximum governor and minimum governor operating speeds of the turbine.
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6 2.4 TS310 Synchronous Generator Operation Droop Stabilizes The Grid We mentioned that dozens or even hundreds of synchronous generators may be connected to the utility grid. Most of these are in DROOP control mode. Although these turbines will control load when the speed is fixed, they will change load if the speed (frequency) of the utility grid should fall (DROOP).
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Chapter 2 - Droop Control 2.7 7 PIP Droop There is another difficulty with plain DROOP control. It is strictly a displacement function. That is, if load (or speed) should suddenly change, the control output (valve position) will change just as suddenly. This characteristic causes some instability of control due to the abrupt change in control output. This requires a DROOP setting of perhaps six to ten percent (of full governor speed value) in order to obtain stable operation.
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8 2.8 TS310 Synchronous Generator Operation When The TS310 Is Used For Generator Control TS310 software is designed to be used for SYNCHRONOUS generator drives. Generator configuration should NOT be used with INDUCTION generators. If it is intended that the controller operate in DROOP control mode at all times (never in FREQUENCY control) it will be necessary to configure a contact input labeled LOAD BREAKER IN (1005) in Channels 72 through 79.
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Chapter 3 - Startup 9 Chapter 3 - Startup 3.1 Improved Startup Sequencing Digital controllers can provide still one more valuable feature. If the controller is configured for DROOP control, the startup sequence, acceleration and synchronizing to the utility bus are somewhat awkward in that the speed (RPM) is never at the reference when using DROOP control.
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Chapter 4 - Synch Vs Induction Generators 11 Chapter 4 - Synchronous Generators Vs Induction Generators Two types of electrical generators are found in common use today. These are synchronous generators and induction generators. Their characteristics differ considerably. The TS310 generator software is designed to be used with synchronous generators. It is not appropriate for use with induction generators. Induction generator control should be configured as plain speed control. 4.
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12 4.3 TS310 Synchronous Generator Operation Differences In Control The control schemes used with Synchronous and Induction generators must then be quite different. The Synchronous generator control scheme should use PIP DROOP control when connected to a utility grid but should at the same time be capable of switching to Isochronous (FREQUENCY) control when required.
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Chapter 5 - Synchronizing 13 Chapter 5 - Synchronizing 5.1 Manual Synchronizing The TS310 will function in isochronous speed control mode until the generator load breaker is closed. After the startup sequence, the operator will observe that the TS310 brings the turbine up to synchronous speed and waits there for the operator to initiate manual or automatic synchronizing.
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14 TS310 Synchronous Generator Operation How The TS310 Performs Autosynchronizing 5.3 The MPS390 (discussed in Chapter 8 of this manual) provides a 0 to 10 volt signal which represents phase angle as measured by potential transformers that are connected to the A phase on each side of the open generator load breaker. While the generator runs faster than the utility grid, this 0 to 10 volt signal will read zero volts when the circuits are in phase; it will read 5.
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Chapter 6 - Tuning & Setpoints 15 Chapter 6 - Tuning & Setpoints 6.1 Control Tuning For Generator Operation Whether STARTUP TUNING is used or not, generator operation requires that tuning constants be set in Channel 20 (proportional band), Channel 21 (reset) and Channel 23 (DROOP). Typical tuning constants might be: Channel 20 - 20%; Channel 21 = 2 seconds; Channel 23 = 4%. PIP DROOP requires that all three of these tuning constants be entered.
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Chapter 7 - Limits 17 Chapter 7 - Limits In addition to the limits listed in the TS310 manual, several limits are or can be specific to synchronous generator applications. 7.1 Maximum Load Limits The governor valve travel can be high-limited by a fixed limit set in Channel 39 or by a fixed limit set in Channel 66 (if no kilowatt limit has been configured). Both of these limits are set in percent and will limit the speed control output (valve travel) to that percent. 7.
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18 TS310 Synchronous Generator Operation 7.3 Load (Generator Output) Low Limits When a kilowatt signal is configured (09) in Channels 70 and 71, the TS310 will automatically DROOP-ON-KILOWATTS as mentioned before. When configured as such, the TS310 will perform a minor change in loading to ensure a minimum generator load when the generator load breaker closes (if the TS310 has been configured DROOP ONLY or if the utility tie breaker is already closed).
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Chapter 8 - The TRISEN MPS390 19 Chapter 8 - The TRISEN MPS390 The TRISEN MPS390 Generator Control Module is used for obtaining a generator output (kilowatt) signal; to provide a synch phase signal to the TS310; and to calculate and distribute a parallel line signal. The parallel line signal is used when two or more TS310 controllers with MPS390 modules are configured for parallel load sharing operation on an isolated bus. Only TS310 to MPS390 interconnections are shown on the following pages.
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20 TS310 Synchronous Generator Operation 8.3 Minimum TS310/MPS390 Connections For Generator Output (Kilowatts) Typical Configuration: No. 2 Analog Input CH 71 = XX09 (KW) CH 50 = 0.00 Volts CH 51 = 10.00 Volts CH 52 = 0 KW CH 53 = Full Range KW No. 4 Digital Input CH 75 = 1005 (Load Breaker In) No. 5 Digital Input CH 76 = XXXX No. 6 Digital Input CH 77 = XXXX No.
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Chapter 8 - The TRISEN MPS390 8.4 21 Minimum TS310/MPS390 Connections For Kilowatts And Autosynchronizing Typical Configuration: No. 2 Analog Input CH 71 = XX09 (KW) CH 50 = 0.00 Volts CH 51 = 10.00 Volts CH 52 = 0 KW CH 53 = Full Range KW No. 3 Analog Input CH 71 = 07XX (Sync Phase) CH 54 = 0.00 Volts CH 55 = 10.00 Volts CH 56 = 0 Degrees CH 57 = 720 Degrees No. 4 Digital Input CH 75 = 1005 (Load Breaker In) No. 5 Digital Input CH 76 = 2015 (Dead Bus Signal) No.
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22 8.5 TS310 Synchronous Generator Operation Minimum TS310/MPS390 Connections For Kilowatt , Autosynchronizing, and Parallel Isochronous Typical Configuration: No. 2 Analog Input H 70 = XX009 (KW) H 50 = 0.00 Volts H 51 = 10.00 Volts H 52 = 0 KW H 53 = Full Range No. 3 Analog Input H 71 = 07XX (Sync Phase) H 54 = 0.00 Volts H 55 = 10.00 Volts H 56 = 0 Degrees H 57 = 720 Degrees No. 4 Analog Input CH 71 = XX06 (Parallel Isoc) CH 58 = 0.00 Volts CH 59 = 10.00 Volts CH 60 = 0.0 % System CH 61 = 100.
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Chapter 9 - Parallel Isochronous Operation 23 Chapter 9 - Parallel Isochronous Operation The TS310 can provide parallel isochronous operation of two or more turbogenerators when driving an isolated bus. When Channel 87 is configured XX2X, XX3X or XX4X, the TS310 will look for a parallel line signal from the MPS390 if the utility tie breaker is open. If the utility tie breaker is closed, the TS310 will revert to DROOP control.
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Chapter 10 - Troubleshooting Generator Operation 25 Chapter 10 - Troubleshooting Generator Operation Symptom Backs-off-the-line, Is motoring, or Tends to trip out on reverse current Troubleshooting Steps • Configure a minimum valve position in Channel 38. Set this limit empirically so that generator output is held at some minimum value. This low limit will enable whenever the TS310 controller goes into DROOP control mode. The limit will disable whenever the TS310 switches to frequency control.