TECHNICAL BULLETIN Limitorque MX Actuators Protection, Control and Monitoring Features FCD LMENTB2300-01 – 08/08 Experience In Motion
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Table of Contents Section 1. Standard Control Features 1.1 Basic Specifications 1.2 Local Control 1.3 Remote Control Modes of Operation 1.4 Emergency Shutdown (ESD) 1.5 Remote External Interlocks/Inhibits 1.6 Absolute Position Encoder 2. Protection Features 2.3 Optional Control Features 3. Network Communications 3.1 DDC (Distributed Digital Control) Communication – Modbus™ 3.2 Master Station II 3.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figures and Tables Section Figure 1.1 – MX Control Panel Figure 1.2 – Absolute Position Encoder Figure 4.1 – FFT of a sound, efficient worm gear set Figure 4.2 – FFT of an actuator exhibiting a specific component that is out of tolerance due to excessive wear. Figure 4.3 – FDA analysis can be performed at the actuator and is included in its View Diagnostics menus. Figure 4.4 – Normal and Diagnostic Displays Figure 9.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Introduction This document details the protection, control and monitoring capabilities of the MX range of electronic actuators. The Flowserve Limitorque MX non-intrusive actuator consists of a mechanical gearbox powered by an electric motor. It is controlled by an integral electromechanical starter and state-of-the-art SMT (surface mount technology) controls.
MX Protection, Control and Monitoring Features 1. Standard Control Features 4 5 FCD LMENTB2300-01 – 07/08 1 2 3 1.1 Basic Specifications A matrix of all MX wiring diagrams is shown in Figure 11.2. The standard wiring diagram is shown in Figure 11.1. Optional wiring diagrams are on subsequent pages. The most current wiring diagram is located within the terminal compartment. The following control features are included in the basic specification. For Optional Features, please refer to Section 2.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Yellow “BLINKING” = Monitor Relay de-energized, actuator not available for remote operation. • Blue LED Bluetooth option enabled and link established 1.3 Remote Control Modes of Operation The actuator may be controlled remotely by two, three or four wires. • Four-Wire Control – Three momentary contacts. Valve can be opened, closed or stopped. • Two-Wire Control – Single open or closed contact.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 1.4 Emergency Shutdown (ESD) Up to three independent ESD signals may be applied, prioritized and configured for different actions for the ESD event associated with each. Either of these ESD signals may be applied to the actuator to override any existing command signal and send the valve to its preselected shutdown position, providing the actuator is in Remote mode (default configuration for ESD is “Ignore, take no action”).
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 2. Protection Features LimiGard™ Circuit Protection MX actuators include LimiGard™ (US Patent 5,719,559 dated February 17, 1998) circuit protection. LimiGard™ consists of dedicated circuitry that continually monitors the motor contactor, control relays, internal logic circuits, and external command signals.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 cycle to free the valve. If this is unsuccessful, further electrical operation is prevented and the monitor relay is signaled. Instantaneous Reversal Protection The control logic incorporates a brief time delay (from 0.5 to 1.0 seconds) between motor reversals. This reduces motor current surges and prolongs the life of the contactor. Note: It is not necessary to switch to STOP before reversing the actuator.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 • Accuracy = 99% of full scale value (for Drive Sleeve Turns > 50) • Non-Linearity = ± 1% of full scale value • Impedance = 0–600 ohms (4–20 mA signal) • Minimum external load = 1000 ohms (0–10 VDC signal) Analog Torque Transmitter (ATT) The ATT is internally powered and provides an electrically isolated output signal of 4–20 mA and/ or 0-20 mA, 0-10 VDC, 2-10 VDC, 0-5 VDC, or 1-5 VDC, which is proportional to actuator rated output
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 When enabled, a User may set up the partial stroke and ESD signals as redundant digital inputs for safety. There are two signal inputs for either selection, and both must be in the active state in order for the specific function to occur.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 3.3 Foundation Fieldbus Communication MX can be fitted with Foundation Fieldbus protocol that complies with the IEC 61158-2 Fieldbus H1 standard. The field unit device is able to support several topologies, such as, point-to-point, bus with spurs, daisy chain, tree, or a combination of these. The FF device has network features that include: • Link Active Scheduler that controls the system • High-speed communications up to 31.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 as point-to-point, bus with spurs, daisy chain, tree, or a combination of these. The PB device has network features that include: • High-speed communications up to 31.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 4. Monitoring and Diagnostic Facilities 4.1 Local Facilities LCD Displays – The LCD displays an array of data concerning the status of actuator components in clear, graphical or textual language. The MX is available with ten languages: English, Spanish, German, French, Italian, Portuguese, Mandarin, Russian, Bahasa Indonesia and Katakana. Normal Display – The normal display illustrates current valve position and status.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 • View Control Compartment Temperature (View Power Supply Menus) • View FDA (Frequency Domain Analysis) 4.3 Frequency Domain Analysis (patent pending) The Frequency Domain Analysis (FDA) methodology for the MX is based upon capturing torque, position, or speed values at regular time intervals while the actuator is motoring, and then calculating the resulting data set with a Fast Fourier Transform (FFT).
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 4.2 – FFT of an actuator exhibiting a specific component that is out of tolerance due to excessive wear. 100% 90% 80% Magnitude (Normalized) 70% FFT indications of worn or out-of-tolerance components. When compared with the baseline (Figure 4.1), each peak can be associated with a particular suspect part, e.g. worm, encoder, motor, etc.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 4.4 – Normal and Diagnostic Displays Normal Display – STATUS OK confirms that the actuator is suitable for remote operation. Normal Display/Alarm Condition – If the actuator is not suitable for remote operation, the appropriate alarm will be shown. Diagnostic Display informs user of failed hardware. Typical Display 17 flowserve.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 5. Remote Facilities 5.1 Actuator Status Contacts (S1a, S1b, S2a, S2b) Four latched contacts provide remote feedback of actuator status. Two (S1a, S2a) contacts may be individually configured for normally open, normally closed, or blinker (continuous opening and closing of the valve) operation and provide feedback of one of the functions listed below. Two other relays are complementary.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 During configuration, the following parameters may be added to the monitor relay function: • Overtorque • Inhibit signal active • ESD signal active (The user can enable or disable “local” mode and “stop” position. Default is enabled.) The monitor relay resets when the faulty state is rectified. The standard contacts are rated for 2.0 A at 30 VDC and 0.5 A at 125 VAC.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 8. Bluetooth® Wireless Communications and MX Dashboard™ Software A Bluetooth option is available that permits a user to download or upload configuration routines via a standard low power wireless communication path to an actuator.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 9. Actuator Configuration 9.1 Non-Intrusive Local Configuration MX actuators may be configured without removing any covers, or using special tools. Configuration is accomplished through the use of the LCD, Dashboard and the local control switches mounted on the Control Panel.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 9.2 – Configuring the MX Actuator 1 Place selector switch in “STOP.” The LCD display will read “% OPEN” and “STATUS OK.” Operate the selector switch to the (YES) (NO) (YES) positions. The message “SETUP?” will be displayed for 10 seconds. Answer “YES” to enter setup routine. 2 All parameters may be configured by answering “YES”/ “NO” questions.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 • FM – Class 1, Division 1, Group B, C, and D. Class II/III, Division 1, Group E, F, and G – T4 • CSA – Class 1, Division 1, Group C and D.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 European Directives All MX actuator designs have been tested to comply with pertinent EU Directives and shipped with the Declaration of Conformity listed in the Regulatory Section of LMENIM2306 and LMENIM2314.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 11. Wiring Configurations for the MX Figure – 11.1 MX terminal block NETWORK GROUNDING LUGS GROUNDING LUG 11.1 MX Terminal Block The standard terminal block for the MX now has 54 points and can sustain all of the options for the MX. Grounding (earth) lugs are provided for both power leads and network control.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 The relay options can be ordered for a new actuator or added to an existing MX and are listed as follows: • OS = Standard S relays (4 total, 2 configurable, 2 complementary) and (1) Monitor, rated for 2 A/30VDC, 0.5 A/125 VAC • OA = Digital output R option (4), including Monitor, rated for 5 A/30 VDC, 250 VAC • OB = Standard S relays (2), including Monitor, rated for 2 A/30 VDC, 0.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 11.
MX Protection, Control and Monitoring Features Standard-S R S&R 2R APT/ATT Modulating DDC FF PB_DPV1 PB_PA D’Net SSMR* Code OS OA OB OC I M D F PV PA N Z MX+ Wiring Diagram 18-499- x x OCFI OSFZ OAFZ OBFZ OSPV OCFZ OSFZI OAPV OBPV OCPV OSPVI OAPVI OBPVI OCPVI OSPVZ OSPVZI OAPVZ OBPVZ OSPA OAPA OBPA OCPA OSPAI OAPAI OBPAI OCPAI OSPAZ OAPAZ OSPAZI OSN OAN OBN OCN OSNI OANI OBNI OCNI OSDZ OADZ OBDZ OSDZI 0157-3 0110-3 0158-3 0159-3 0109-3 0201-3 0197-3 0160-3 0161-3 0162-3 0163-3
MX Protection, Control and Monitoring Features 12. MX Wiring Diagrams Transformer Tapping Options Figure 12.1 – Standard Wiring Diagram for MX Actuators TYPE Circuit shown with valve in fully closed position and power off 3 PHASE SUPPLY 1 GROUP 1 CLOSE 27 STOP 26 OPEN 25 GROUP 2 SEE TABLE 1 INPUT 1 APPL.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 12.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 12.3 – DDC, Foundation Fieldbus, Profibus DP V1, and Profibus PA, and DeviceNet Network Wiring Diagrams DDC – Modbus Profibus DP_V1 DDC BOARD EARTH/GROUND SURGE PROTECTION 3 NETWORK DATA-A1* A 4 NETWORK DATA-A1 REG 9.0x0400 5 NETWORK DATA-A2* B 14 NETWORK DATA-A2 PROFIBUS DPV1 IEC 61158–2 REG 9.
1-4 DIGITAL INPUTS 24 VDC MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 12.4 – DDC, Foundation Fieldbus and Profibus Optional Features Wiring Diagrams DIGITAL OUTPUTS 1 44 45 46 47 48 R1, 2, 3, 4, 5, 6, 7, 8 - RATED 5.0 A AT 250 VAC OR 30 VDC 49 R4 50 51 ANALOG OUTPUT 12 4-20mA or 0-5 Vdc INPUT DIGITAL OUTPUTS 2 R5 R6 R7 R8 32 36 37 38 39 40 41 42 43 4-20 mA SIGNAL - 470 ohms MAXIMUM for 99.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 12.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 13. Network Protocol Connections 13.1 Network Wiring – DDC-Modbus Please consult LMENIM2329 for detailed installation instructions. • Belden 3105A Specifications Total cable length between repeaters or nodes with repeaters: • @ 9.6 kbps: 11500 ft. (3.5 km) • @ 19.2 kbps: 5750 ft. (1.7 km) • @ 38.4 kbps: 2875 ft. (875 m) Key Specifications • Resistance/1000 ft = 22 AWG (7 x 30) 14.7 ohms each conductor (29.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 Figure 13.1 – Typical Modbus Network Wiring Diagrams – Single Loop MOV-1 MOV-2 A2 16 A2* 15 Shield 30 41 A2 16 A2* 15 Shield 30 A1 29 A1* N/C 41 29 N/C A1 A1* • • • MOV-250 A1 41 16 29 15 N/C 30 Shield A1* A2 A2* Legend: Notes: MOV - Motor Operated Valve • A1 -Data Channel 1 connections is necessar y for proper operation. A1*-Data Channel 1* • A2 -Data Channel 2 MOVs will vary up to a maximum of 250.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 13.2 Network Wiring – Foundation Fieldbus H1 Please refer to LMENIM2330 for detailed installation instructions. Limitorque’s Foundation Fieldbus field unit conforms to open Fieldbus standard IEC 61158. It is suitable for use on the H1 highway and uses a twisted-pair cable for connection to the highway. The MX FF field unit fits in the actuator in the sealed electrical housing.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 For fieldbus technology and cabling information, refer to the following documents: • Foundation Fieldbus Wiring and Installation 31.25 kbits/s, Voltage Mode, Wire Medium AG-140 • Foundation Fieldbus Technical Overview, FD-043 • Relcom Inc. Fieldbus Wiring Design and Installation Guide • ANSI/ISA-S50.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 When there is a need for more flexiblity (bending) and higher environmental resistance, a cable with stranded wire for the Profibus line and special jackets shall be used. Limitorque recommends the use of: • Belden 3079A Specifications, 22 AWG, shielded, solid two conductor Key Specifications • Capacitance/ft = 8.5 pF • Nominal Impedance (ohms) – 150.
MX Protection, Control and Monitoring Features FCD LMENTB2300-01 – 07/08 13.4 Network Wiring – DeviceNet Please refer to LMENIM2328 for detailed installation instructions. DeviceNet is a CAN - based protocol that uses 5 wires including a shield. Two of the conductors are used for 24V DC power & up to 8 amps (4 amps for NEC Class 2) may be passed along the hi-way from a suitable power source. Two conductors are used for the CAN bus signals, CAN_H and CAN_L, which are usually smaller in diameter.
Flowserve Corporation Flow Control United States Flowserve Limitorque 5114 Woodall Road, P.O. Box 11318 Lynchburg, VA 24506-1318 Phone: 434-528-4400 Facsimile: 434-845-9736 England Flowserve Limitorque Euro House Abex Road Newbury Berkshire, RG14 5EY United Kingdom Phone: 44-1-635-46999 Facsimile: 44-1-635-36034 Japan Limitorque – Nippon Gear Co., Ltd. Asahi-Seimei Bldg.