Series 97 User’s Manual User Levels: • New User ....................................................... go to page 1.1 • Experienced User .......................................... go to page 2.1 • Expert User .................................................... go to page 2.1 Installers: • Installation ...................................................... go to page 2.1 • Wiring .............................................................go to page 3.
NOTE: Details of a “Note” appear here in the narrow margin on the outside of each page. CAUTION: Details of a “Caution” appear here in the narrow margin on the outside of each page. WARNING: Details of a “Warning” appear here in the narrow margin on the outside of each page. Safety Information We use note, caution and warning symbols throughout this book to draw your attention to important operational and safety information. A “NOTE” marks a short message in the margin to alert you to an important detail.
T Series 97 Table of Contents Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . .1.1 Chapter 2: Installation . . . . . . . . . . . . . . . . . . . . . .2.1 Chapter 3: Wiring . . . . . . . . . . . . . . . . . . . . . . . . . .3.1 Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . .3.3 Sensor Installation Guidelines . . . . . . . . . . . .3.3 Wiring Example . . . . . . . . . . . . . . . . . . . . . . .3.4 Wiring Notes . . . . . . . . . . . . . . . . . . . . . . . . .3.5 Input 1 . . . .
TOTAL About Watlow Winona CUSTOMER SATISFACTION 3 Year Warranty Watlow Winona is a division of Watlow Electric Mfg. Co., St. Louis, Missouri, a manufacturer of industrial electric heating products, since 1922. Watlow begins with a full set of specifications and completes an industrial product that is manufactured totally in-house, in the U.S.A.. Watlow products include electric heaters, sensors, controllers and switching devices.
1 Chapter One Overview Introduction Watlow’s Series 97 is a microprocessor-based controller with a single input, second auxiliary input and four outputs. Input 1 is used to measure temperature from a thermocouple or RTD sensor. Input 2 can be utilized as a remote reset switch or a hardware lockout switch. With up to four outputs, the controller is versatile in handling applications that require a high/low limit, alarms, retransmit and communications.
Setup Steps What to do How to do it 1 Install the controller. See Chapter Two. 2 Wire the controller. See Chapter Three. 3 Configure the controller for your application. Chapter Four explains the keys, displays and software navigation. Chapter Five explains features, such as alarms and control methods. Chapter Six lists parameter descriptions, ranges, Modbus numbers and other information. 4 Set up communications.
2 Chapter Two Installation 2.050" 1.77" to 1.79" (44.96mm to 45.47mm) LIMIT 97 1 2 3 4 Panel Cutout 2.050" Panel Thickness 0.06" to 0.38" (1.5 to 9.7 mm) 1.77" to 1.79" (44.96mm to 45.47mm) RESET 0.540" (13.72mm) Minimum 0.310" (7.874mm) Figure 2.1 - Series 97 multiple panel cutout dimensions. NOTE: Measurements between panel cutouts are the minimum recommended. For rapid mounting, use Greenlee 1/16 DIN punch, die, draw stud, part number 60287. Watlow Series 97 Installation ■ 2.
Installing the Series 97 Controller Installing and mounting requires access to the back of the panel. 1. Make the panel cutout using the tear-out mounting template found on the previous page, or the dimensions found in this chapter. 2. Check to see that the gasket is properly seated into the gasket channel on the front bezel and that it is not twisted.
Removing the Series 97 Controller 1 Hold the controller with one hand while using the other hand to loosen the screws with a #2 Phillips screwdriver until the end of the screw is flush or past the end of the cantilevers, see the figure below. 2. After the screws have been loosened, hold the controller with one hand while squeezing the two screws together with the other hand. Then simply slide the mounting collar off the controller. Figure 2.3 - Removing the controller.
Notes 2.
3 Chapter Three Wiring Power Wiring . . . . . . . . . . . . . . . . . . . . . .3.3 Sensor Installation Guidelines . . . . . . . . .3.3 Wiring Example . . . . . . . . . . . . . . . . . . . .3.4 Wiring Notes . . . . . . . . . . . . . . . . . . . . . .3.5 Input 1 . . . . . . . . . . . . . . . . . . . . . . . . . . .3.6 Input 2 . . . . . . . . . . . . . . . . . . . . . . . . . . .3.6 Output 1 Limit Output Wiring . . . . . . . . . .3.7 Output 2 Alarm Output Wiring . . . . . . . . .3.8 Output 3 Alarm Wiring . . .
Wiring the Series 97 Wiring options depend on the model number. Check the terminal designation stickers on either side of the controller and compare your model number to those shown here and with the model number breakdown on the inside back cover of this manual. NOTE: Using the Diagnostics Menu (Factory Page) check Output 1 Hardware through Output 4 Hardware, [Oty1] through [Oty4]. See Chapter Six for information about the menu and range of settings for each output.
Power Wiring ç CAUTION: If high voltage is applied to a low-voltage unit, irreversible damage will occur.
Wiring Example ∫ç WARNING: L1 120VÅ (ac) L2 high temperature light To avoid potential electric shock and damage to property and equipment, use National Electric Code (NEC) safety practices when wiring and connecting this unit to a power source and to electrical sensors or peripheral devices. Failure to do so could result in injury or death.
Wiring Notes ∫ç Sketch in your application on this page or a copy of it. See the wiring example in this chapter. WARNING: To avoid damage to property and equipment, and/or injury of loss of life, use National Electric Code (NEC) standard wiring practices to install and operate the Series 97. Failure to do so could result in such damage, and/or injury or death. L1 L2 9 power 8 Figure 3.5 - Wiring notes. Watlow Series 97 Wiring ■ 3.
Input 1 Wiring NOTE: Successful installation requires five steps: • Choose the controller’s hardware configuration and model number (Appendix); Figure 3.6a – Thermocouple Available on all units Impedance: 20MΩ 13 14 15 1 8 2 9 3 10 11 4 • Choose a sensor (Chapters 3 and 6, and Appendix); • Install the controller (Chapter 2); • Wire the controller (Chapter 3) and 16 17 18 12 5 6 -6 +7 19 7 20 21 Figure 3.
Output 1 Limit Output Wiring NOTE: Successful installation requires five steps: • Choose the controller’s hardware configuration and model number (Appendix); • Choose a sensor (Chapters 3 and 6, and Appendix); • Install the controller (Chapter 2); • Wire the controller (Chapter 3) and • Configure the controller (Chapters 4, 5 and 6). Figure 3.
Output 2 Alarm Output Wiring NOTE: Successful installation requires five steps: • Choose the controller’s hardware configuration and model number (Appendix); • Choose a sensor (Chapters 3 and 6, and Appendix); • Install the controller (Chapter 2); Figure 3.8a – AC Outputs •Electromechanical relay without contact suppression 97 _ _ - _ D _ _ _ - _ _ _ _ 13 Form C, 2 amps, off-state impedance: 31MΩ 14 15 8 1 •Solid-state relay without contact suppression 2 9 16 3 10 N.O. COM. N.C.
Output 3 Alarm Wiring NOTE: Successful installation requires five steps: • Choose the controller’s hardware configuration and model number (Appendix); • Choose a sensor (Chapters 3 and 6, and Appendix); Figure 3.9 – AC Outputs Electromechanical Relay without Contact Suppression 97 _ _ - _ _ D_ - _ _ _ _ Form C, 2 amps, off-state impedance: 31MΩ 13 15 8 2 9 3 10 • Install the controller (Chapter 2); 4 • Wire the controller (Chapter 3) and 7 • Configure the controller (Chapters 4, 5 and 6).
Output 4 Wiring NOTE: Successful installation requires five steps: • Choose the controller’s hardware configuration and model number (Appendix); Figure 3.
NOTE: Figure 3.11a — EIA-232 to EIA-485 Conversion TD (A) TD (B) RD (A) RD (B) EIA-485 485OIC EIA-232 Successful installation requires five steps: • Choose the controller’s hardware configuration and model number (Appendix); • Choose a sensor (Chapters 3 and 6, and Appendix); • Install the controller (Chapter 2); • Wire the controller (Chapter 3) and • Configure the controller (Chapters 4, 5 and 6). T-/RT+/R+ COM.
Notes 3.
4 Chapter Four Navigation and Software Keys and Displays . . . . . . . . . . . . . . . . . .4.2 Navigation . . . . . . . . . . . . . . . . . . . . . . . .4.3 Software Map . . . . . . . . . . . . . . . . . . . . .4.4 Task Charts . . . . . . . . . . . . . . . . . . . . . . .4.6 Watlow Series 97 Navigation ■ 4.
Keys and Displays This chapter explains keys, displays and navigation skills, and presents charts showing how to accomplish basic and advanced tasks. You’ll also find a complete software map. Upper Display: Indicates actual process values during operation, the value for the parameter in the lower display, or the user programmed message. Active Output (1-4) Indicator Lights: Lit when the corresponding output trips.
Navigating the Series 97 Choose a page (Operations, Setup or Factory) and press its key sequence. The page appears in the lower display. LIMIT 97 1 2 3 4 LIMIT 97 1 2 3 RESET 4 RESET • Operations Page: press ¿ and ¯ keys together for three seconds. LIMIT 97 LIMIT 97 1 2 3 1 4 2 3 4 RESET RESET • Setup Page: press ¿ and ¯ keys together for six seconds. LIMIT 97 1 2 3 1 4 2 3 4 RESET RESET • Factory Page: press ‰ and Reset keys together for six seconds.
Navigation Home Page ‰ and RESET for 6 seconds ¿ and ¯ for 3 seconds Operations Page ¿ and ¯ for 3 seconds Setup Page [``97] Process Value [Safe] Limit Status [LIM] Limit Menu [OPEr] Operations Page [InP1] Input 1 Menu [`SEt] Setup Page [`LOC] Custom Menu [FctY] Factory Page ¿ to cycle through menus ‰ to select a parameter in a menu ¿ to select a value ‰ to enter a value and go to the next parameter RESET anytime to return to the Home Page Factory Page Software Map Home Page [``97] Process V
Setup Page [InP1] [`SEt] ¿ ¯ ‰ [InP2] [`SEt] ¿ ¯ ‰ [Out1] [`SEt] ¿ ¯ ‰ [Out2] [`SEt] ‰ ¿ ¯ [Out3] [`SEt] ‰ ¿ ¯ [Out4] [`SEt] ‰ ¿ ¯ Input 2 Menu [`SEt] Setup Page [In`2] Input 2 [E`Fn] Event Function [E`cn] Event Condition Output 1 Menu [`SEt] Setup Page [LSid] Set Limit Active Sides [LhYS] Limit Hysteresis Output 2 Menu [`SEt] Setup Page [Ot`2] Output 2 [hys2] Alarm Hysteresis 2 [LAt2] Latching 2 [SiL2] Silencing 2 [Sid2] Alarm Active Sides 2 [Lgc2] Alarm Logic 2 [Anu2] Alarm Annunciation 2
Tip: Use the software map on the inside back cover for easy reference. Basic navigation for new users Use this example task to learn how to use the keys and displays. Navigation skills are essential for setting up the controller. For more information about the control features available in the Series 97, see Chapter Five. For a table of all parameters and values, see Chapter Six.
5 Chapter Five Features Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.2 Input Calibration Offset . . . . . . . . . . . . . . . .5.3 Filter Time Constant . . . . . . . . . . . . .5.4 Sensor Selection . . . . . . . . . . . . . . . .5.5 Range Low and Range High . . . . . . .5.5 Event Input . . . . . . . . . . . . . . . . . . . .5.6 Retransmitting the process value . . . .5.7 Alarms Alarm Set Points . . . . . . . . . . . . . . . .5.8 Alarm Hysteresis . . . . . . . . . . . . . . . .5.
Limit The Series 97 limit controller is added to thermal applications to limit over- or under-temperature conditions. The Series 97 controller provides safety assurance against instances where a high temperature runaway condition could occur from a shorted input sensor or an output device that could fail in a closed position. A limit condition is latched and therefore requires operator intervention to clear it. This is done by pressing the Reset key after the limit condition has passed.
Input Calibration Offset Calibration offset allows a device to compensate for an inaccurate sensor, lead resistance or other factors that affect the input value. A positive offset increases the input value, and a negative offset decreases the input value. The input 1 offset value can be viewed or changed with Calibration Offset 1 [CAL1] (Limit Menu). Negative Calibration Offset will compensate for the difference between the Sensor Reading and the Actual Temperature.
Filter Time Constant A time filter smooths an input signal by applying a first-order filter time constant to the signal. Either the displayed value or both the displayed and control values can be filtered. Filtering the displayed value makes it easier to monitor. View or change the input 1 time filter with Filter Time Constant 1 [Ftr1] (Input 1 Menu). A positive value affects only the viewed values. A negative value affects both the viewed and control values.
Sensor Selection You need to configure a controller to match the input device, which is normally a thermocouple or RTD. When you select an input device the controller automatically sets the input linearization to match the sensor. It also sets high and low limits, which in turn limit the range high and range low values. Use Sensor Type 1 [SEn1] and Input 1 [In1`] (Input 1 Menu) to select the appropriate sensor for input 1.
Event Input With an event input an operator can perform certain operations on a system by opening or closing a switch or applying a dc logic signal to the controller. This feature can add convenience, safety or security to a system. Use Event Input Status [E`St] (Monitor Menu) to read the state of the event input parameter. Use Event Function [E`Fn] (Input 2 Menu) to select how an event will affect the system. [nonE] Events will not affect the system. [Lrst] Clear Limit. [`LOC] Lock out key board.
Retransmit The retransmit output can be used to transmit an analog signal representing the value of the input process variable. The retransmit signal can be configured as either a milliamp or a voltage signal. In choosing the type of retransmit signal the operator must take into account the input impedance of the external device and the required signal type, either voltage or milliamps. A typical application might use the retransmit option to record a process value with a chart recorder.
Alarms An alarm takes some action, usually notifying an operator, when the process temperature leaves a defined range. A user can configure how and when an alarm is triggered and whether it turns off automatically when the alarm condition is over. Alarm Set Points The alarm high set point defines the temperature that will trigger a high side alarm. The alarm high set point must be higher than the alarm low set point and lower than the high limit of the sensor range.
Process A process alarm uses one or two absolute set points to define an alarm condition. The alarm process value of output 2 can be viewed or changed with Alarm 2 High [A2hi] and Alarm 2 Low [A2Lo] (Alarm Menu). Alarm Latching A latched alarm will remain active after the alarm condition has passed. It can only be deactivated by the user. An alarm that is not latched will deactivate automatically when the alarm condition has passed.
Alarm Silencing Alarm silencing has two uses: 1. It is often used to allow a system to warm up after it has been started up. With alarm silencing on, an alarm is not triggered when the process temperature is initially lower than the alarm low set point. The process temperature has to enter the normal operating range beyond the hysteresis zone in order to activate the alarm function. 2. Alarm silencing also allows the operator to disable the alarm output while the controller is in an alarm state.
Communications Overview A Series 97 controller can also be programmed and monitored by connecting it to a personal computer or programmable logic controller (PLC) via serial communications. To use this communications option, a Series 97 must be equipped with an output 4 communications board for EIA/TIA-485 (97_ _ - _ _ _U - _ _ _ _), which allows as many as 32 controllers on a 4,000-foot-long network, or EIA/TIA-232 (97_ _ - _ _ _R - _ _ _ _), which allows a single controller to be connected to a computer.
Notes 5.
6 Chapter Six Parameters Parameter Setup Order . . . . . . . . . . . . . .6.2 Home Page . . . . . . . . . . . . . . . . . . . . . . .6.3 Operations Page . . . . . . . . . . . . . . . . . . .6.4 Monitor Menu . . . . . . . . . . . . . . . . . .6.4 Limit Menu . . . . . . . . . . . . . . . . . . . . .6.5 Alarm Menu . . . . . . . . . . . . . . . . . . . .6.5 Setup Page . . . . . . . . . . . . . . . . . . . . . . .6.7 Input 1 Menu . . . . . . . . . . . . . . . . . . .6.7 Input 2 Menu . . . . . . . . . . . . . . .
Table 6.2 — Set up parameters in this order.
Home Page The resting-state display shows the following set of data. The first prompt appears in the top display, the second in the bottom. Display Parameter [``97] Upper Display Range Default Modbus Address read/write Conditions for Parameters to Appear Active: Always [safe] Lower Display Home Page Monitor the processes determined by the Upper Display [UdSP] and Lower Display [LdSp] parameters Display Menu.
Operations Page The operations page contains three menus: Display Parameter [Oper] Operations Page Select Go to an operations menu. Range [Mon] Monitor [LIM] Limit [Alm] Alarm (if any alarms are active) Default Modbus Address read/write Conditions for Parameters to Appear [LIM] [mon] Monitor Menu [Oper] Operations Page 100 r Active if Operations Page Mode (Lockout Menu) is not set to [hide].
Display Parameter Range Default Modbus Address read/write Conditions for Parameters to Appear [LIM] Limit Menu [Oper] Operations Page [L`Lo] Low Limit Set Point [`rL1] to [L`hi] -1 [`rL1] 701 r/w Active: Always [L`Lo] +1 to [`rh1] [`rh1] 702 r/w Active: Always 0 605 r/w Active: Always 321 r/w Active if Output 2 (Output 2 Menu) is set to [``AL] (Alarm), Alarm Active Sides 2 (Output 2 Menu) is not set to [hi``], Output 2 is present (97 _ _-_ D _ _-_ _ _ _ or 97 _ _-_ K_ _-_ _ _ _) and Opera
Display Parameter [A3hi] Alarm 3 High Sets the high alarm set point for output 3. [A4Lo] Alarm 4 Low Sets the low alarm set point for output 4. [A4hi] Alarm 4 High Sets the high alarm set point for output 4.
Setup Page The setup page contains 8 menus. Display Parameter Range [`Set] Setup Page [InP1] Input 1 Go to a setup menu. [Inp2] Input 2 (if present) [Out1] Output 1 [Out2] Output 2 (if present) [Out3] Output 3 (if present) [Out4] Output 4 (if present) [dISP] Display [glbl] Global Default Modbus Address read/write Conditions for Parameters to Appear Active if Setup Page Lock (Lockout Menu) is not set to [hide]. [InP1] [Inp1] Input 1 Menu [`set] Setup Page Sets the input hardware type of input 1.
Display Parameter [rL`1] Range Low 1 Range Default Modbus Address read/write * * 602 r/w Active if Setup Page Lock (Lockout Menu) is not set to [hide]. * * 603 r/w Active if Setup Page Lock (Lockout Menu) is not set to [hide]. Sets the input range low. This setting is the lowest value that the set point can have. [rh`1] Range High 1 Sets the input range high. This setting is the highest value that the set point can have.
Display Parameter Range Default Modbus Address read/write Conditions for Parameters to Appear [Inp2] Input 2 Menu [`set] Setup Page [In`2] Input 2 Sets the input type parameter of input 2. [E`Fn] Event Function Selects the event function. [`OFF] off: (0) [E`In] Event Input: (1) 0 611 r/w Active if Input 2 hardware is present (97 _1 _-_ _ _ _ -_ _ _ _) and Setup Page Lock (Lockout Menu) is not set to [hide].
Display Parameter Range Default Modbus Address read/write Conditions for Parameters to Appear 1 to 9999 3 720 r/w Active if Output 2 is enabled, hardware is present (not 97 _ _-_ A _ _-_ _ _ _ ), Output 2 (Output 2 Menu) is set to [``AL] (Alarm) and Setup Page Lock (Lockout Menu) is not set to [hide]. [``no] no action (0) [`Yes] latching enabled (1) [``no] 721 r/w Active if Output 2 (Output 2 Menu) is set to [``AL] (Alarm) and Setup Page Lock (Lockout Menu) is not set to [hide].
Display Parameter Range Default Modbus Address read/write Conditions for Parameters to Appear [Out3] Output 3 Menu [Ot`3] Output 3 Selects type of output 3. [`OFF] 734 r/w Active if Output 3 hardware is present (97 _ _-_ _ D _-_ _ _ _), Output 3 (Output 3 Menu) is set to [``AL] (Alarm) and Setup Page Lock (Lockout Menu) is not set to [hide].
Display Parameter [Anu3] Alarm Annunciation 3 Range Default Modbus Address read/write Conditions for Parameters to Appear [``no] no (0) [`Yes] yes (1) [`Yes] 742 r/w Active if Output 3 hardware is present (97 _ _-_ _ D _-_ _ _ _), Output 3 (Output 3 Menu) is set to [``AL] (Alarm) and Setup Page Lock (Lockout Menu) is not set to [hide].
Parameter [Lgc4] Alarm Logic 4 Selects alarm 4 output condition in alarm state. [Anu4] Alarm Annunciation 4 Range Default Modbus Address read/write [al`0] alarm condition [al`0] de-energizes output [al`C] alarm condition energizes output none* Active if Output 4 is equipped for a relay (97 _ _-_ _ _ D-_ _ _ _), Output 4 (Output 4 Menu) is set to [``AL] (Alarm) and Setup Page Lock (Lockout Menu) is not set to [hide].
Display Parameter [Addr] Address Range 1 to 247 Default Modbus Address read/write Conditions for Parameters to Appear 1 none* Active if Output 4 is equipped for communications (97 _ _-_ _ _ R_ _ _ _ or 97 _ _-_ _ _ U-_ _ _ _) and Setup Page Lock (Lockout Menu) is not set to [hide]. [`Pr1] 1400 r/w Active: Always. Sets communications address.
Parameter [UP`L] Upper Display User Limit Message Select four characters for limit message. Range 0: _ 1: A 2: b 3: C 4: c 5: d 6: E 7: e 8: F 9: g 10: H 11: h 12: I 13: i 14: J 15: L 16: l 17: M (1st half) 18: M (2nd half) 19: N 20: n 21: O 22: o 23: P 24: r 25: S 26:t 27: U 28: u 29: W (1st half) 30: W (2nd half) 31: backwards “C” 32: backwards “c” 33: y 34: 0 35: 1 36: 2 37: 3 38: 4 39: 5 40: 6 41: 7 42: 8 43: 9 44: blank 45: 46: .
Display Parameter Range Default Conditions for Parameters to Appear 1405 r/w Active: Always. 1406 r/w 1407 r/w 1408 r/w 1409 r/w characters 1 to 4 Active if Lower Display [LdSP] is set to [USEr]. see Upper Display User [____] Limit Message 1410 r/w 1411 r/w 1412 r/w 1413 r/w characters 1 to 4 Active if Lower Display [LdSP] is set to [USEr]. [``°C] Celsius (1) [``°F] Fahrenheit (0) [``°F] 901 r/w Active if Setup Page Lock (Lockout Menu) is not set to [hide].
Factory Page The factory page contains four menus: Display Parameter Range Default Modbus Address read/write Conditions for Parameters to Appear Active: Always [fcty] Factory Page Selection [`LOC] Lockout Menu [cin1] [dIag] Diagnostics Menu Choose factory menu [cin1] Calibration 1 to enter.
Display Parameter [`Sn1] Serial Number 1 Range Default Modbus Address read/write Conditions for Parameters to Appear 0 to 9999 none 1r Active: Always 0 to 9999 none 2r Active: Always 0 to 9999 none 3r Active: Always none 4r Active: Always Reads the first four digits of the serial number. [`Sn2] Serial Number 2 Reads the last four digits of the serial number. [Soft] Software ID Number Reads the software ID number. [`reu] Software Revision 0.00 to 99.99 Reads software revision number.
Display Parameter [tout] Test Output Turns on specific output. [DISP] Test Display Tests the indicator lights on the front panel. [hres] High Resolution Range Default Modbus Address read/write Conditions for Parameters to Appear [none] 1514 r/w Active: Always [`OFF] turn off cyclical [`OFF] display test (0) [``on] turn on the cyclic display test (1) 1513 r/w Active: Always 0.0 to 99.
Display Parameter Range Default Modbus Address read/write Conditions for Parameters to Appear [cin1] Input Calibration Menu [Fcty] Factory Page [`rSt] Restore Factory Calibration Restores factory calibration (Stores factory calibration with special key sequence).
Display Parameter Range Default Modbus Address read/write Conditions for Parameters to Appear [cout] Output Calibration Menu [Fcty] Factory Page [4``4] Output Calibration 4, 4mA 0.00 to 99.99 4.00 1619 w Active if Output 4 is process (97 _ _-_ _ _ M-_ _ _ _) and Calibration Lock (Lockout Menu) is not set to [hide] 0.00 to 99.99 20.00 1620 w Active if Output 4 is process (97 _ _-_ _ _ M-_ _ _ _) and Calibration Lock (Lockout Menu) is not set to [hide] 0.00 to 99.99 1.
Notes Notes NOTE: For more information about how parameter settings affect the controller’s operation, see Chapter Five, Features. 6.
A Appendix Troubleshooting Alarms and Errors . . . .A.2 Modbus™ RTU . . . . . . . . . . . . . . . . . . A.4 Modbus Address Chart . . . . . . . . . . . . .A.10 Calibrating the Series 97 . . . . . . . . . . . .A.11 Glossary . . . . . . . . . . . . . . . . . . . . . . . A.14 Specifications . . . . . . . . . . . . . . . . . . . A.18 Ordering Information . . . . . . . . . . . . . . A.20 Index . . . . . . . . . . . . . . . . . . . . . . . . . . A.21 Prompt Index . . . . . . . . . . . . . . . . . . . . A.
Troubleshooting Alarms and Errors Indication Power • No power. Communications • Unit will not communicate. Probable Cause(s) • Power to unit may be off. • Fuse may be blown. • Breaker may be tripped. • Safety interlock door switch etc. may be activated. • Wiring may be open. • Input Power may not be hooked up to pins 8 and 9. • Address parameter may be incorrectly set. • Baud rate parameter may be incorrectly set. • Unit-to-unit daisy chain may be disconnected.
Corrective Action • Check switches, fuses, breakers, interlocks, limits, connectors, etc. for energized condition and proper connection. • Measure power upstream for required level. Check part number for input power required. • Check wire size. • Check for bad or incorrect connections. • Check comms setup menu and set to correct address. • Check comms setup menu and set to correct baud rate. • Look for a break in the daisy chain. • Verify correct connections and test wiring paths.
Modbus Remote Terminal Unit (RTU) Modbus RTU enables a computer or PLC to read and write directly to registers containing the controller’s parameters. With it you could read all 141 of the controller’s parameters with five read commands. Because of the wide array of choices available for setting up a Series 97 controller, only a subset of the prompts contain parameters in a given situation. This manual explains the interrelations between prompts.
Packet format: | nn | nn | nn nn… | nn nn | ∆ ∆ ∆ ∆ ∆ ∆ address command registers and/or data CRC Read Multiple Registers Command (0x03 or 0x04) This command returns from 1 to 32 registers.
Example: Read register 0 (model number) of the controller at address 1. Sent: 01 03 00 00 00 01 84 0A Received: 01 03 02 00 61 79 AC Message: 97 (0x0061). Example: Read register 1 and 2 (Serial number 1 and Serial number 2) of controller at address 5. Sent: 05 03 00 01 00 02 94 4F Received: 05 03 04 00 64 00 C8 FF BA Message: 100 (0x0064) and 200 (0x00C8). Write to a Single Register Command (0x06) This command writes a parameter to a single register. The controller will echo back the command.
Packet sent to controller: | nn | 10 | nn nn | 00 01 | 02 | nn nn | nn nn | ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ controller address (one byte) write to multiple registers command (0x10) starting register high byte starting register low byte number of registers to write high byte (0x00) number of registers to write low byte (must be 0x01) number of data bytes (must be 0x02) data high byte data low byte CRC low byte CRC high byte Packet returned by controller: | nn | 10 | nn nn | 00 01 | nn nn | ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ controller a
Example: Run loop back test on controller at address 40 (0x28). Sent: 28 08 55 66 77 88 31 B7 Received: 28 08 55 66 77 88 31 B7 Exception Responses When a controller cannot process a command it returns an exception response and sets the high bit (0x80) of the command.
Cyclical Redundancy Checksum (CRC) Algorithm This C routine, calc_crc(), calculates the cyclical redundancy checksum, CRC, for a string of characters. The CRC is the result of dividing the string by 0xA001. Modbus applications calculate the packet’s CRC then append it to the packet.
Modbus Register Numbers Absolute Relative Parameters Absolute 40001 40002 40003 40004 40005 40006 40010 40017 40018 40019 40020 40025 0 1 2 3 4 5 9 16 17 18 19 24 40101 40107 40111 40115 40202 40320 40322 40323 40341 40342 40508 40601 40602 40603 40604 40605 40606 40607 40608 40612 40701 40702 40703 40718 40721 40722 40723 40724 40725 40726 40735 40738 40739 40740 40741 40742 40743 40902 41061 41062 41302 41303 41306 41401 100 106 110 114 201 319 321 322 340 341 507 600 601 602 603 604 605 606 607 611
Calibrating the Series 97 To enter the a calibration menu, first warm up the unit, then enter the Factory Page by holding down the Reset Key and ‰ for six seconds. Once in the Factory Page [Fcty] use the up-arrow ¿ or down-arrow ¯ key to select a menu. The last two menus on the Factory Page are Input Calibration Menu [cin1] and Output Calibration Menu [cout]. If [`Ot4] is not a process output, the [cout] prompt will not appear.
Thermocouple Input Procedure Equipment • Type J reference compensator with reference junction at 32°F/0°C, or type J thermocouple calibrator to 32°F/0°C. • Precision millivolt source, 0 to 50mV minimum range, 0.002mV resolution. Input 1 Setup and Calibration 1. Connect the correct power supply to terminals 8 and 9 (see Chapter Three and the Appendix). 2. Connect the millivolt source to terminals 6 (-) and 7 (+) with copper wire. 3. Enter 50.000mV from the millivolt source.
Set RTD Calibration, 380Ω [r380] (Input Calibration Menu) to [`yES]. Press the Advance Key ‰ to store the 380.00Ω input and move to the next prompt. 7. Rewire for operation and verify calibration. Process Output Procedures Equipment • Precision volt/ammeter with 3.5-digit resolution. Output 4 Setup and Calibration 1. Connect the correct power supply to terminals 8 and 9 (see Chapter Three and the Appendix). Milliamperes 2. Connect the volt/ammeter to terminals 20 (-) and 21 (+). 3.
Glossary annunciator — A visual display that uses pilot lights to indicate the former or existing condition of several items in a system. burst fire — A power control method that repeatedly turns on and off full ac cycles. Also called zero-cross fire, it switches close to the zero-voltage point of the ac sine wave. Variable-time-base burst fire selectively holds or conducts ac cycles to achieve the desired power level. See zero cross.
hysteresis — A change in the process variable required to re-energize the control or alarm output. Sometimes called switching differential. integral — Control action that automatically eliminates offset, or droop, between set point and actual process temperature. See auto-reset. integral control (I) — A form of temperature control. The I of PID. See integral. isolation — Electrical separation of sensor from high voltage circuitry. Allows use of grounded or ungrounded sensing element.
proportional band (PB) — A range in which the proportioning function of the control is active. Expressed in units, degrees or percent of span. See PID. proportional control — A control using only the P (proportional) value of PID control. range — The area between two limits in which a quantity or value is measured. It is usually described in terms of lower and upper limits. rate — Anticipatory action that is based on the rate of temperature change, and compensates to minimize overshoot and undershoot.
time proportioning control — A method of controlling power by varying the on/off duty cycle of an output. This variance is proportional to the difference between the set point and the actual process temperature. transmitter — A device that transmits temperature data from either a thermocouple or a resistance temperature detector (RTD) by way of a two-wire loop. The loop has an external power supply. The transmitter acts as a variable resistor with respect to its input signal.
Specifications (2195) Controller Electromechanical Relay • Microprocessor-based, user selectable control modes • Input sample period; Single input 10Hz (100 msec), dual input 5Hz (200 msec) digital filter adjustable • Display update; 2Hz (500 msec), time filter adjustable • Input/Output/Communication isolation • Displayed in °C or °F • Form C contact configuration • Minimum load current 10mA @ 5VÎ (dc) • Rated resistive and inductive loads: 2A @ 250VÅ (ac) or 30VÎ (dc) maximum • Electrical life 100,000
RTD Inputs • Calibration accuracy ±0.1% of span ±1°C at standard conditions • Accuracy span: 540°C/1000°F minimum • Temperature stability: ±0.05 degree per degree change in ambient Functionality Matrix Agency Approvals Input 1 Input 2 Output 1 Output 2 Output 3 Output 4 • FM Class 3545 File J.I. 1B5A6.AF, Temperature Limit Switches, Indicating • CE EN 61326 Industrial Immunity, Class A emissions and EN61010-1 Safety standard.
Ordering Information (1635) Series 97 97 ——-————-———— Microprocessor-based 1⁄16 DIN with thermocouple and RTD input 1. Options include: software, power supply, input 2, four outputs and display color Power Supply A = 100-240VÅ (ac) B = 24-28Vı (ac/dc) Input 2 0 = None 1 = Event input Output 1 D = Electromechanical relay, Form C, 2A, without RC suppression Output 2 A = None C = Switched dc output/open collector D = Electromechanical relay, Form C, 2A, without RC suppression K = 0.
Index A Address 6.14 Alarm 2 Low 6.5 Alarm 2 High 6.5 Alarm 2 Status 6.4 Alarm 2 Type 6.10 Alarm 3 Low 6.5 Alarm 3 High 6.6 Alarm 3 Status 6.4 Alarm 3 Type 6.11 Alarm 4 Low 6.6 Alarm 4 High 6.6 Alarm 4 Status 6.4 Alarm 4 Type 6.12 Alarm 5.8-5.11 hysteresis 5.8 latching 5.9 process 5.9 set points 5.8 silencing 5.10 Alarm Active Sides 2 6.10 Alarm Active Sides 3 6.11 Alarm Active Sides 4 6.12 Alarm Annunciation 2 6.10 Alarm Annunciation 3 6.12 Alarm Annunciation 4 6.13 Alarm Hysteresis 2 6.
O Operations Page 4.4 Operations Page menus 6.4-6.6 Operations Page Mode Lock 6.17 ordering information A.20 Output 2 6.9 Output 3 6.11 Output 4 6.12 Output 1 Hardware 6.18 Output 2 Hardware 6.18 Output 3 Hardware 6.18 Output 4 Hardware 6.18 Output 1 Menu 6.9 Output 2 Menu 6.9-6.11 Output 3 Menu 6.11-6.12 Output 4 Menu 6.12-6.14 Output Calibration Menu 6.21, A.11 output wiring AC 3.7-3.10 communications and retransmit option 3.10 switched DC, open collector 3.8 PQ packet syntax A.
Prompt Index [4``1] [4``4] [4`10] [4`20] Output Calibration 4, 1V 6.21 Output Calibration 4, 4mA 6.21 Output Calibration 4, 10V 6.21 Output Calibration 4, 20mA 6.21 A [A2hi] [A2lo] [A3hi] [A3lo] [A4hi] [A4lo] [ACAL] [Acnt] [Addr] [A`hi] [Al`2] [Al`3] [Al`4] [Alm] [A`Lo] [Amb] [Anu2] [Anu3] [Anu4] [Aout] Alarm 2 High 6.5 Alarm 2 Low 6.5 Alarm 3 High 6.6 Alarm 3 Low 6.5 Alarm 4 High 6.6 Alarm 4 Low 6.6 Analog Output Offset 6.13 Ambient A-D Counts 6.19 Address 6.14 Analog Output High 6.14 Alarm 2 Status 6.
Declaration of Conformity Series 97 WATLOW Winona, Inc.
Series 97 Software Map Home Page Setup Page Factory Page [Safe] Limit Status [`SEt] Setup Page [SEn1] Sensor Type 1____________ [In`1] Input 1 __________________ [rL`1] Range Low 1 _____________ [rh`1] Range High 1 _____________ [dEC1] Decimal 1 ________________ [Ftr1] Input Software Filter 1 ______ [`LOC] Lockout Menu [FctY] Factory Page [OPEr] Operations Page Mode _______ [`SEt] Setup Page Lock ___________ [`CAL] Calibration Menu Lock _______ [``97] Process Value [InP1] Input 1 Menu [InP2] Input 2
■ Using the Manual How to Reach Us Contact TOTAL Your Authorized Watlow Distributor is: CUSTOMER SATISFACTION 3 Year Warranty Quality and Mission Statement: Watlow Winona will be the world’s best supplier of industrial temperature control products, services, and systems by exceeding our customers’, employees’, and shareholders’ expectations. • Phone: (507) 454-5300. • Fax: (507) 452-4507. • For technical support, ask for an Applications Engineer. • To place an order, ask for Customer Service.
