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RKC INSTRUMENT SR Mini System Hardware Instruction Manual

High-performance multi-point
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SR Mini SYSTEM
High-performance Multi-point
Control System
SR Mini
SYSTEM
Hardware
Instruction Manual
IMSRM02-E6
RKC INSTRUMENT INC.
®

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Summary of Contents for RKC INSTRUMENT SR Mini System

  • Page 1 SR Mini SYSTEM High-performance Multi-point Control System SR Mini SYSTEM Hardware Instruction Manual IMSRM02-E6 RKC INSTRUMENT INC. ®...
  • Page 2 All Rights Reserved, Copyright  1994, RKC INSTRUMENT INC.
  • Page 3 Thank you for purchasing the RKC instrument. In order to achieve maximum performance and ensure proper operation of your new instrument, carefully read all the instructions in this manual. Please place this manual in a convenient location for easy reference.
  • Page 4 CAUTION This is a Class A instrument. In a domestic environment, this instrument may cause radio interference, in which case the user may be required to take adequate measures. This instrument is protected from electric shock by reinforced insulation. Provide reinforced insulation between the wire for the input signal and the wires for instrument power supply, source of power and loads.

  • Page 5: Table Of Contents

    CONTENTS Page 1. OUTLINE ................1 1.1 Handling Procedures ..................1 1.2 Confirmation of the Products................2 1.3 Confirmation of the Model Code..............3 2. SYSTEM CONFIGURATION..........12 2.1 Basic Configuration ..................12 2.2 Precautions for System Configuration ............13 3. DESCRIPTION OF EACH MODULES ........19 3.1 Basic Configuration ..................19 3.2 Common Items of Each Module ..............20 3.3 PCP Module ....................25 3.4 TIO Module....................33...
  • Page 6 Page 6. IN CASE OF TROUBLE ............64 6.1 Troubleshooting.....................64 6.2 Module Replacement Procedure ..............71 7. FUNCTIONS................75 7.1 Inputs......................75 7.2 Settings ......................77 7.3 Controls ......................78 7.4 Alarms ......................83 7.5 Contact Inputs ....................90 8. SPECIFICATIONS...............92 8.1 PCP Module ....................92 8.2 TIO Module....................95 8.3 CT Module.....................99 8.4 DI Module ....................100 8.5 DO Module ....................101...

  • Page 7: Outline

    1. OUTLINE 1.1 Handling Procedures For proper operation of your new instrument, follow the procedures and precautions listed below. Confirmation of See 1.2 Confirmation of the Products (P. 2) the Products Confirmation of See 1.3 Confirmation of the Model Code (P. 3) the Model Code See 3.

  • Page 8: Confirmation Of The Products

    1. OUTLINE 1.2 Confirmation of the Products When unpacking your new instrument, please confirm that the following products are included. If any of the products are missing, damaged, or if your manual is incomplete, please contact RKC sales office or the agent. SR Mini HG SYSTEM control unit: Required number of sets Hardware Instruction Manual (IMSRM02-E ):...

  • Page 9: Confirmation Of The Model Code

    1. OUTLINE 1.3 Confirmation of the Model Code The model code for the instrument you received is listed below. Please confirm that you have received the correct instrument by checking the model code label, located on the left side of the module, with this list.
  • Page 10 1. OUTLINE PCP module (Power/CPU module) model code ∗ ∗ ∗ ∗ M-PCP- (1) Type (4) DO signal A: DO 4 points type M: Relay contact output B: DO 2 points type with DI function D: Open collector output (2) Power supply voltage (5) First alarm function 1: 100 to 120 V AC N: No alarm function...
  • Page 11 1. OUTLINE For the contents of the DO, four functions can be selected out of the six functions ; first alarm, second alarm, heater break alarm, burnout alarm, temperature rise completion and loop break alarm. For details on the DO Allocation, see the following Initial Code Table. Initial Code Table DO function can be allocated by the customer on the operation panel.
  • Page 12 1. OUTLINE TIO module (Temperature control module) model code 1 channel control type ∗ ∗ ∗ ∗ M-TIO- (3) (4) (5) (6) (7) (8) (1) Type (6) Control output (Cool-side) A: 1 channel type (Temperature input) None: No function C: 1 channel heat/cool type (Temperature input) M: Relay contact output V: Voltage pulse output (2) Control action...
  • Page 13 1. OUTLINE Only possible to select for type A. Only possible to select for type C. Both heat-side and cool-side outputs can be selected by using the heat/cool control type (C, G). For other types, “No function” is selected for cool-side control output, and only heat-side control output can be selected.
  • Page 14 1. OUTLINE 2 channels control type ∗ ∗ ∗ ∗ N M-TIO- (3) (4) (5) (6) (1) Type (5) Control output (Heat-side) B: 2 channels type (Temperature input) M: Relay contact output D: 2 channels heat/cool type (Temperature input) V: Voltage pulse output for SSR drivers P: 2 channels fuzzy control type D: Open collector output (Temperature input)
  • Page 15 1. OUTLINE Input Range Table Input type Code Range Code Range Code Range Input Range Input Range Input Range 0 to 400 °C 0 to 800 °C 0 to 1300 °C 0.0 to 400.0 °C 0.0 to 800.0 °C K (JIS/IEC) 0 to 800 °F 0.0 to 800.0 °F 0 to 2400 °F...
  • Page 16 1. OUTLINE CT module (Current transformer input module) model code M-CT- (1) Type A: CT input 6 points type (Each 2 points together are common) (2) CT type P: CTL-6-P-N is used for 0 to 30 A S: CTL-12-S56-10L-N is used for 0 to 100 A CT (current transformer) is sold separately.
  • Page 17 1. OUTLINE DI module (Digital input module) model code M-DI- (1) Type A: 24 V DC 8 points input type (4 points/common) If the type A without the memory area selection input terminal is requested, the special model code of “Z-186” is added to the end of PCP module model code. DO module (Digital output module) model code H-DO- (1) Type...

  • Page 18: System Configuration

    2. SYSTEM CONFIGURATION 2.1 Basic Configuration The basic system consists of control units containing the PCP module connected with the function modules of the desired type, and the dedicated operation panel for display and setting or the host computer. Example 1 (Connection with host computer) Host computer Function modules (10 modules max.) PCP module...

  • Page 19: Precautions For System Configuration

    2. SYSTEM CONFIGURATION 2.2 Precautions for System Configuration When configuring or extending the system, observe the following precautions. When any function module is extended or removed, as it is necessary to store the new function module configuration in the PCP module, always initialize the module. For details on how to initialize the module, see the Operation Panel Instruction Manual (OPM: IMSRM03-E , OPL-A: IMSRM11-E , OPM [Z-191 specifications]: IMSRM21-E ,...
  • Page 20 2. SYSTEM CONFIGURATION • If two or more control units are multi-drop connected, the communication specification of all PCP modules must be RS-422A. In addition, the maximum number of control units that can be connected is 16. (When connected to the OPM [Z-191 specifications] or the OPM-H [Z-191 specifications] : Up to 8 units) RS-422A RS-422A...
  • Page 21 2. SYSTEM CONFIGURATION • Assign CT inputs and DO module alarm outputs within the same control unit. (Because all control inputs and outputs must be closed within the same control unit.) Input A CT input B: Heater break alarm output CT input B Input A: Alarm output •...
  • Page 22 2. SYSTEM CONFIGURATION Consuming current of each function module Power supply Power supply Function module voltage of 5 V voltage of 12 V DO relay contact output module 45 mA 140 mA DO open collector output module 45 mA 0 mA TIO-D module 150 mA 80 mA...
  • Page 23 2. SYSTEM CONFIGURATION When DO modules are mounted together with other function modules TIO-B × 7 DO-A-M × 3 As an example in which the DO modules need to be added for outputting the alarm independently for each channel, when (DO modules: 3 modules) are added to (TIO-B modules: 7 modules) : Each consuming output current becomes as follows.
  • Page 24 2. SYSTEM CONFIGURATION CT module • CT input cannot be assigned to the TIO module with voltage/current output. (Because for voltage or current output, the heater break alarm function cannot be used.) Ch.A Ch.C Ch.E Ch.B Ch.D Ch.F TIO-B modules Ch: Channel •...

  • Page 25: Description Of Each Modules

    3. DESCRIPTION OF EACH MODULES 3.1 Basic Configuration The control unit consists of various kinds of modules and a mother block and each modules are connected with each other by the connectors of mother block. Mother blocks Module main units PCP module Function modules Control unit using the PCP module as the basic module and connecting the necessary types of...

  • Page 26: Common Items Of Each Module

    3. DESCRIPTION OF EACH MODULES 3.2 Common Item of Module 3.2.1 Mother block Outline The mother block, attached to each module as a set, has the structure that allows the connection with neighboring modules and makes it possible to attach the control units to a DIN rail or wall surface, etc.
  • Page 27 3. DESCRIPTION OF EACH MODULES Dimensions Appearance Dimensions (mm) Remarks Single type Mother block dedicated to single type module connection Double type Mother block dedicated to double type module connection Mother block dedicated to PCP module module connection exclusive type IMSRM02-E6...
  • Page 28 3. DESCRIPTION OF EACH MODULES 3.2.2 Parts description PCP module (1) Unit address setting switch (2) RX (data reception) lamp [Yellow] (3) TX (data transmission) lamp [Yellow] (9) Mother block (4) FAIL lamp [Red] (5) RUN lamp [Green] (6) Modular connector 1 (7) Modular connector 2 (8) Terminals (10) Module connector...
  • Page 29 3. DESCRIPTION OF EACH MODULES Single type module (1) FAIL lamp [Red] (2) RUN lamp [Green] (3) Mother block (4) Module connector Name Description FAIL lamp [Red] ON during abnormal operation OFF during normal operation RUN lamp [Green] Flashing during normal operation Mother block Module DIN rail mounting connector Module connector...
  • Page 30 3. DESCRIPTION OF EACH MODULES 3.2.3 External view PCP module With the terminal cover removed With the terminal cover fixed to from the module the module Single type module With the terminal cover fixed to With the terminal cover removed the module from the module Double type module...

  • Page 31: Pcp Module

    3. DESCRIPTION OF EACH MODULES 3.3 PCP Module 3.3.1 Outline The PCP module is made up of the main CPU section and the power supply section for the control unit. This module is indispensable to construct the control unit with other modules. The PCP module carries out the supply of power to each module, the data management and the interfacing with the operation panel or a host computer.
  • Page 32 3. DESCRIPTION OF EACH MODULES 3.3.2 Terminal configuration PCP-A type (Module with four DO points) FAIL FAIL output terminals OUT1 OUT1 Unused terminal OUT2 OUT2 Digital output Power terminals supply 200 to 240V 100 to 120V OUT3 OUT3 terminals Ground terminal OUT4 OUT4 Unused terminal...
  • Page 33 3. DESCRIPTION OF EACH MODULES 3.3.3 Functional description Output function FAIL output The FAIL output is output when a problem occurs in the CPU operation and the FAIL lamp will light at the same time. Use this output for FAIL monitoring or for signal output to an external sequencer, etc.
  • Page 34 3. DESCRIPTION OF EACH MODULES Digital output (PCP-A and PCP-B) The digital outputs can be optionally selected from the first alarm (ALM1), second alarm (ALM2), heater break alarm, burnout alarm, temperature rise completion, loop break alarm, AI first alarm or AI second alarm.
  • Page 35 3. DESCRIPTION OF EACH MODULES Input function Digital input (PCP-B) For digital input, memory area selection, control RUN/STOP selection or alarm interlock release specifying can be performed. In addition, any of the following combinations of functions is available for digital input. •...
  • Page 36 3. DESCRIPTION OF EACH MODULES Control Run/Stop selection, alarm interlock release specifying and memory area selection (Type Selection or release specifying can be performed depending on the open or close state of terminal numbers 7 to 10. Contact opened: Memory area number 1 Contact closed: Memory area number 2 Contact closed: Alarm interlock released Contact opened: Control STOP Contact closed: Control RUN...
  • Page 37 3. DESCRIPTION OF EACH MODULES 3.3.4 Settings before operation Communication setting directions Using the dip switches inside the PCP module, sets the communication speed and data bit configuration. 1. To separate the module mainframe from the mother block, press the bottom on the module, lifting upward, to release connection.
  • Page 38 3. DESCRIPTION OF EACH MODULES Unit address settings When each control unit is multi-drop connected to host computer or operation panel, set the address of each control unit using the unit address setting switch in the PCP module. Use a very small blade screwdriver to set the unit address on the unit address setting switch located on the front of each PCP module.

  • Page 39: Tio Module

    3. DESCRIPTION OF EACH MODULES 3.4 TIO Module 3.4.1 Outline The TIO module is used to perform temperature or process control. The TIO modules corresponding to the necessary number of control points are connected to the PCP module. For details on the limited number of TIO modules connected to the PCP module, see P. 15. A type [1 channel type] B and P type...
  • Page 40 3. DESCRIPTION OF EACH MODULES 3.4.2 Terminal configuration TIO-A type − − − − − − − − − − − − Voltage pulse Voltage/current Triac Open collector Output Relay output output output output contact terminals Alarm output Current transformer (CT) input Input terminals...
  • Page 41 3. DESCRIPTION OF EACH MODULES TIO-C type Output 1 − − − − − − − − − − − − (Heat-side) Voltage pulse Voltage/current Triac Open collector Relay output output output output contact Output 2 − − − − −...
  • Page 42 3. DESCRIPTION OF EACH MODULES TIO-P type Output 1 (CH1) − − − − − − − − − − − − Voltage pulse Voltage/current Triac Open collector Relay output output output output contact Output 2 (CH2) − − − − −...
  • Page 43 3. DESCRIPTION OF EACH MODULES 3.4.3 Functional description (1) Input function Channel number CH1 and CH2 are assigned to the input terminals of the B, P type (2 channels type) module in order from the top of these terminals. In addition, CH1 and CH2 are assigned to the D type (2 channels heat/cool type) modules in order from the left of these modules for each module.
  • Page 44 3. DESCRIPTION OF EACH MODULES (2) Output function Channel number In the same way as the input terminals, CH1 and CH2 are assigned to the output terminals of the B, P (2 channels) type module in order from the top of these terminals. In addition, CH1 and CH2 are assigned to the D type (2 channels heat/cool type) modules in order from the left for each module.
  • Page 45 3. DESCRIPTION OF EACH MODULES Voltage pulse output This output is for driving the SSRs and 12 V DC is output during the outputting. Allowable load resistance: 600 Ω or more − Current and voltage output The current output can be selected from 4 to 20 mA DC or 0 to 20 mA DC, and the voltage output can be selected from 0 to 1 V DC, 0 to 5 V DC, 0 to 10 V DC or 1 to 5 V DC.
  • Page 46 3. DESCRIPTION OF EACH MODULES (3) Alarm function One TIO module is provided with two alarm points as standard. Each alarm status is output to the PCP module from the TIO module as data. The respective alarm (ALM1/ALM2) can be output independently for each channel by connecting the DO module.
  • Page 47 3. DESCRIPTION OF EACH MODULES (5) Loop break alarm function The loop break alarm function is used to detect a load (heater) break, a failure occurring in any external operating device (magnet relay, etc.) or a failure occurring in the control system (control loop) caused by an input (sensor) break.

  • Page 48: Ct Module

    3. DESCRIPTION OF EACH MODULES 3.5 CT Module 3.5.1 Outline The CT module is used specially for CT input for detecting heater current. This is dedicated to CT input for heater break detection or current measurement. Up to six CT input points can be input per module. In addition, the following two types of CT module are available depending on the heater capacity used: 0 to 30 A and 0 to 100 A.
  • Page 49 3. DESCRIPTION OF EACH MODULES 3.5.3 Functional description Heater break alarm output function The CT module, combined with the CT sensor or TIO module, can output a heater break alarm. It addition, it can output the alarm independently for each channel when combined with the DO module. Either one of the two module types can be selected depending on the heater capacity.

  • Page 50: Di Module

    3. DESCRIPTION OF EACH MODULES 3.6 DI Module 3.6.1 Outline The DI module is used only for digital input. The DI-A type module is used to select the operation status (memory area selection, control RUN/STOP selection, or alarm interlock release) of the control unit by using external contacts, etc. Up to eight input points can be configured for each DI module.
  • Page 51 3. DESCRIPTION OF EACH MODULES 3.6.3 Functional description (1) Digital input function (DI-A) The digital input function can be used to select the memory area in the control unit to which the DI-A module is connected, to select control RUN/STOP or alarm interlock release. After the contact is closed, it takes a short time until the action of this device is actually selected.

  • Page 52: Do Module

    3. DESCRIPTION OF EACH MODULES 3.7 DO Module 3.7.1 Outline The DO module is used specially for digital output. DO-A, DO-B type modules can output alarm statuses such as temperature and heater break alarms independently for each channel. • DO-A (8 points output type) •...
  • Page 53 3. DESCRIPTION OF EACH MODULES 3.7.3 Functional description (1) Alarm output function (only for DO-A, DO-B types) Alarm output function types Any alarm selected from the following alarm output functions can be output for each channel. Temperature alarm output (alarm 1 and alarm 2) This alarm is output when the measured value (PV) of the TIO module is within the alarm setting range.
  • Page 54 3. DESCRIPTION OF EACH MODULES Open collector output (DO-A type) The output status is an 8 points/common open collector output. For the internal circuit driver of the DO module, connect the minus (-) terminal of an external power supply to the number 6 terminal and connect the positive (+) terminal of the power supply to the common line of each output.
  • Page 55 3. DESCRIPTION OF EACH MODULES Alarm assignment One DO-A or DO-B module is divided into each block (4 points/block) for the respective alarm type. Thus, four points per block are output. Alarm type • Temperature alarm 1 • Burnout alarm •...
  • Page 56 3. DESCRIPTION OF EACH MODULES [Example] When the temperature and heater break alarms of the TIO module are output independently for each channel by the DO-A module. Temperature alarm CH9 to 12 Temperature alarm CH1 to 4 TIO-B module DO-A module The assignment of channel number of TIO and AI modules to the terminals of DO modules...

  • Page 57: Mounting

    4. MOUNTING WARNING To prevent electric shock or instrument failure, always turn off the power before mounting or removing the instrument. 4.1 Mounting Environment (1) This instrument is intended to be used under the following environmental conditions. (IEC61010-1) [OVERVOLTAGE CATEGORY II, POLLUTION DEGREE 2] (2) Avoid the following conditions when selecting the mounting location: •...

  • Page 58: Mounting Position Within Panel

    4. MOUNTING 4.2 Mounting Position within Panel Mount this instrument in the panel most suited to the environment and to facilitate operation and maintenance. (1) Mounting precautions Cooling fun Temperature considerations • Allow enough ventilation space. • Do not mount this instrument directly above equipment which Instrument generates heat (heaters, transformers, large resistors, etc.).
  • Page 59 4. MOUNTING (2) Example of mounting within panel Operation panel Host computer Operation panel Host computer Separation of Separation of Function modules Function modules Function modules 50 mm or more module 50 mm or more module module Separation of Separation of 50 mm or more 50 mm or more Separation of...

  • Page 60: Dimensions

    4. MOUNTING 4.3 Dimensions External dimensions (Unit: mm) ∗ With the terminal cover (With the terminal cover fixed to the module fixed to the module) PCP module Single type module Dotted-line section: Terminal cover ∗ (With the terminal cover fixed to the module) Double type module IMSRM02-E6...
  • Page 61 4. MOUNTING Module mounting depth ( For DIN rail mounting) The mounting depth of each module is 108 mm from the mounting surface inside the panel to the front of the module with the module mounted on the DIN rail. However, when modular connector cables are plugged in, additional depth is required.

  • Page 62: Mounting The Mother Block

    4. MOUNTING 4.4 Mounting the Mother Block The mother block can be mounted to a panel or DIN rail. Panel mounting directions 1. Refer to both the panel mounting dimensions below and the 4.3 Dimensions (P. 54) when selecting the location. (Unit: mm) 4-M3 2-M3...
  • Page 63 4. MOUNTING DIN rail mounting directions 1. Remove the module mainframe from the mother block. For details of removing the module mainframe, see 4.6 Removing the Module Mainframe (P. 59). 2. Pull down the locking device at the bottom of the mother block. (*1) Pull down both of two locking device at the bottom of the double type mother block.

  • Page 64: Mounting The Module Mainframe

    4. MOUNTING 4.5 Mounting the Module Mainframe It engages the module with the mother block that is mounted on DIN rail or a panel. 1. Place the module mainframe opening on top of the mother block tab. (*1) 2. Snap the lower part of module mainframe on to the mother block. (*2) Opening at top of module Tab at top of mother block Single type module...

  • Page 65: Removing The Module Mainframe

    4. MOUNTING 4.6 Removing the Module Mainframe It detaches the module from the mother block that is mounted on DIN rail or a panel. To separate the module mainframe from the mother block, press the bottom on the module, lifting upward, to release connection.

  • Page 66: Wiring

    5. WIRING WARNING To prevent electric shock or instrument failure, do not turn on the power until all the wiring is completed. 5.1 Wiring Precautions Power supply wiring • Use power supply as specified in power supply voltage range. • Power supply wiring must be twisted and have a low voltage drop. •...
  • Page 67 5. WIRING Input/output wiring • For thermocouple input, use the appropriate compensation wire. • For RTD input, use low resistance lead wire with no difference in resistance between the three lead wires. • Use independent ducts for the input/output wires and power circuits inside and outside the panel. •...

  • Page 68: Wiring Of Each Modules

    5. WIRING 5.2 Module Wiring For details on terminal configuration of each modules, see 3. DESCRIPTION OF EACH MODULES (P. 19). Re-confirmation of the specifications Re-confirm the input/output specifications of each module. In particular, take adequate care of the input current and voltage for the inputs, and the output current and voltage for the outputs.
  • Page 69 5. WIRING TIO module wiring saving As the output terminals for voltage pulse output or 1 to 5 V DC voltage output commonly use the minus line in the control unit, it is possible to omit the remaining wiring on the minus side by commonly using a minus terminal on one module.

  • Page 70: In Case Of Trouble

    6. IN CASE OF TROUBLE 6.1 Troubleshooting This section lists some basic causes and solutions to be taken when any problem would arise in this instrument. If you can not find a solution, please contact RKC sales office or the agent. If the instrument is necessary to be replaced, observe the following warning.
  • Page 71 6. IN CASE OF TROUBLE (1) PCP module related Problem Probable cause Solution RUN lamp does not light up Power not being supplied Check external breaker etc. Appropriate power supply Check the power supply voltage not being supplied Power supply terminal contact Retighten the terminals defect Power supply section defect...
  • Page 72 6. IN CASE OF TROUBLE (2) TIO module related Problem Probable cause Solution RUN lamp does not flash Power line defect Replace mother block Power supply section defect Replace PCP module CPU section breakdown Replace module RUN lamp stays lit Module different from system Replace with module matching specifications inserted...
  • Page 73 6. IN CASE OF TROUBLE Continued from the previous page. Problem Probable cause Solution No input values change System set to Unused mode Switch to Used mode Main CPU section breakdown Replace PCP module Bus line defect Replace mother block Specific input value does not Sensor cut line Replace sensor...
  • Page 74 6. IN CASE OF TROUBLE (3) CT module related Problem Probable cause Solution RUN lamp does not flash Power line defect Replace mother block Power supply section defect Replace module CPU section breakdown Replace module RUN lamp stays lit Module different from system Replace with module matching specifications inserted specifications...
  • Page 75 6. IN CASE OF TROUBLE (4) DI module related Problem Probable cause Solution RUN lamp does not flash Power line defect Replace mother block Power supply section defect Replace PCP module CPU section breakdown Replace module RUN lamp stays lit Module different from system Replace with module matching specifications inserted...
  • Page 76 6. IN CASE OF TROUBLE (5) DO module related Problem Probable cause Solution RUN lamp does not flash Power line defect Replace mother block Power supply section defect Replace module CPU section breakdown Replace module RUN lamp stays lit Module different from system Replace with module matching specifications inserted specifications...

  • Page 77: Module Replacement Procedure

    6. IN CASE OF TROUBLE 6.2 Module Replacement Procedure PCP module replacement To remove the PCP module from the mother block, follow the reverse order of module mounting. Replacement procedure 1. Turn off the power to the control unit. 2. Remove the module mainframe from the mother block. 3.
  • Page 78 6. IN CASE OF TROUBLE Function module replacement To remove the function module from the mother block, follow the reverse order of module mounting. Replacement procedure 1. Switch the used channel of the faulty module to Unused mode. 2. Turn off the power to the control unit. 3.
  • Page 79 6. IN CASE OF TROUBLE In this instrument, even if a function module is detached, the operation of the other channels can be continued as before. After mounting the normally operating module, set the channel used by this module to the Normal mode.
  • Page 80 6. IN CASE OF TROUBLE Mother block replacement To remove the mother block, follow the reverse order of mother block mounting. Replacement procedure 1. Turn off the power to the control unit. 2. Remove the module mainframe from the mother block. 3.

  • Page 81: Functions

    7. FUNCTIONS 7.1 Inputs (1) PV bias The value set in the PV bias is added to the actual input value to correct the input value. The PV bias is used to correct the individual variations in the sensors or when there is difference between the measured values (PV) of other instruments.
  • Page 82 7. FUNCTIONS (3) Soak time This is the time period between the time that all the channels reach the temperature set value and the time of the occurrence of the temperature rise completion. Temperature set value Soak time temperature rise completion range Temperature Temperature rise start...

  • Page 83: Settings

    7. FUNCTIONS 7.2 Settings (1) Memory area function This function is to store the parameters such as set value (SV), etc. in up to eight memories. The parameters which can be stored as one of memories are set value (SV), first alarm, second alarm, heat- side proportional band (P), integral time (I), derivative time (D), control response parameter, cool-side proportional band and deadband/overlap.

  • Page 84: Controls

    7. FUNCTIONS 7.3 Controls (1) Brilliant PID control PID control is a control method of achieving stabilized control result by setting P (Proportional band), I (Integral time) and D (Derivative time) constants, and is widely used. However even in this PID control if P, I and D constants are set so as to be in good “response to setting,”...
  • Page 85 7. FUNCTIONS (2) Control response parameter This is the function of enabling the setting of response to set value (SV) change in select any one of 3 steps (Slow, Medium, Fast) in PID control. In order to achieve faster controlled object response to set value (SV) change, select Fast. However, slight overshoot is unavoidable when selecting Fast.
  • Page 86 7. FUNCTIONS (4) ON/OFF control In ON/OFF control, the manipulated output (MV) is turned on and off depending on whether measured value (PV) is larger or smaller than set value (SV). Differential gap setting can prevent relay contact from on or off repetition around set value (SV). Differential gap (upper) Set value (SV)
  • Page 87 7. FUNCTIONS (6) Enhanced autotuning The enhanced autotuning function is used to automatically measure, calculate and set the optimum PID constants centering around the temperature set value. This function can start from any state after power on, during a rise in temperature or in stable control. In addition, the AT bias can be set. AT bias The AT bias is set when the autotuning function in which the measured value (PV) does not exceed the set value (SV) is activated.
  • Page 88 7. FUNCTIONS (9) Balanceless/bumpless This function is used to prevent overload caused by the manipulated output value (MV) suddenly changing when auto mode is transferred to manual mode and vice versa. Operation during transfer from auto mode to manual mode When the mode is transferred to manual mode the manipulated output value (MV) follows that in auto mode.

  • Page 89: Alarms

    7. FUNCTIONS 7.4 Alarms Alarm (ALM) function sets up the alarm status when the measured value (PV) or the deviation reaches the alarm set values. In the alarm status, the alarm output is output, and the alarms are used to drive the equipment danger signals or the safety equipment.
  • Page 90 7. FUNCTIONS Deviation low alarm When the deviation [Measured value (PV) - Set value (SV)] is the alarm set value or less, the alarm status is set up. − When the deviation is on the positive side − When the deviation is on the negative side Measured value (PV) Measured value (PV) Measured value (PV)
  • Page 91 7. FUNCTIONS (2) Process alarm When the measured value (PV) reaches the alarm set value, the alarm status is set up. − Process high alarm − Process low alarm Measured value (PV) Measured value (PV) Measured value (PV) Measured value (PV) Alarm Alarm set value...
  • Page 92 7. FUNCTIONS − Band alarm Measured value (PV) Measured value (PV) Differential gap Alarm set value Set value (SV) Alarm set value Differential gap Time Alarm status (4) Alarm hold function In the alarm hold function, the alarm function is kept invalid even if the measured value (PV) is in the alarm range when the power is on or the operation mode is switched to Run from Stop.
  • Page 93 7. FUNCTIONS (5) Alarm re-hold function In the alarm hold function, the holding is effective if the input value is in the alarm range at the power on and is cancelled if the input value will go out of the alarm range. While, in the alarm re-hold function the hold function becomes effective when the temperature set value is changed again.
  • Page 94 7. FUNCTIONS (7) Loop break alarm (LBA) The loop break alarm (LBA) function is used to detect a load (heater) break or a failure in the external actuator (magnet relay, etc.), or a failure in the control loop caused by an input (sensor) break. This function monitors the measured value (PV) variation at LBA setting time intervals from the time the output exceeds 100 % (or output limiter: high limit) or falls below 0 % (or output limiter: low limit), then detects a heater or input break.
  • Page 95 7. FUNCTIONS LBA deadband (LBD) The LBA may be produced by disturbances (other heat sources) even if the control system is not abnormal. In such a case, an area in which no alarm is produced can be set by setting the desired LBA deadband (LBD).

  • Page 96: Contact Inputs

    7. FUNCTIONS 7.5 Contact Inputs An external contact signal selects the operation status or alarm interlock release. Voltage input circuit diagram Dry contact input circuit diagram Contact Contact Common Memory area selection An external contact signal selects one control area from among eight stored control areas. Control RUN/STOP selection An external contact signal starts or stops control.
  • Page 97 7. FUNCTIONS Alarm interlock release When the alarm status is output from the digital output, an external contact signal can release the alarm status. Alarm status Alarm status output Alarm interlock release input (a) When the alarm status is set up, the alarm status output becomes on. (b) When the alarm interlock release input is set to on in the alarm status, the alarm status output does not become off because the alarm status output is on.

  • Page 98: Specifications

    8. SPECIFICATIONS 8.1 PCP Module Basic functions Data supervision: Operating and system data Control unit diagnosis: Function modules configuration check Self-diagnostic: Check item: ROM/RAM check Watchdog timer CPU power supply monitoring If error occurs in self-diagnosis, the hardware will automatically return the module outputs to the OFF position.
  • Page 99 8. SPECIFICATIONS Digital output Failure output: Relay contact output Number of outputs: 1 point Rating : 250 V AC, 0.1 A (Resistive load) [CE/UL/CSA approved instrument: 30 V DC, 0.1 A] Electrical life: 300,000 times or more (Rated load) Contact type: 1a contact Failure action: Open at error occurrence...
  • Page 100 8. SPECIFICATIONS Communication functions RKC standard communication Communication interface: Based on RS-422A, EIA standard Based on RS-232C, EIA standard Specify when ordering Connection method: RS-422A: 4-wire system, multi-drop connection RS-232C: Point-to-point connection Protocol: Based on ANSI X3.28 subcategory 2.5 B1 Synchronous method: Start/stop synchronous type Communication speed:...

  • Page 101: Tio Module

    8. SPECIFICATIONS 8.2 TIO Module 8.2.1 Temperature control module (TIO-A, B, C, D, P) Input Number of inputs: 1 channel or 2 channels Isolated between each channel and between input and output Input type: Thermocouple input: K, J, R, S, B, E, T, N, PLII, W5Re/W26Re, U, L RTD input: JPt100, Pt100...
  • Page 102 8. SPECIFICATIONS Setting range Set value (SV): Same as input range Heat-side proportional band: 0.1 to 1000.0 % of span Cool-side proportional band: 0.1 to 1000.0 % of span (Only for TIO-C and D types) Integral time: 1 to 3600 seconds Derivative time: 1 to 3600 seconds (PI control when set to 0 second) Overlap/deadband:...
  • Page 103 8. SPECIFICATIONS Open collector output: Load voltage: 12 to 24 V DC Maximum load current: 100 mA Leak current when OFF: 0.1 mA or less Maximum voltage drop at ON: 2.4 V or less (At a load current of 100 mA) 0.7 V or less (At a load current of 10 mA) The minus terminals of the output with the two channels specification are internally contacted in common.
  • Page 104 8. SPECIFICATIONS Heater break alarm function (Only for TIO-A, C and D type) [option] Number of inputs: 1 point/control loop Setting range: 0.0 to 100.0 A Accuracy of heater current measurement: 5 % of input value or ±2 A (The value whichever is greater) Input current: 0 to 30 A: CTL-6-P-N...

  • Page 105: Ct Module

    8. SPECIFICATIONS 8.3 CT Module Input Input type: Current transformer input (CT) Number of inputs: 6 points Number of common points: 3 points (1-2 channels/common, 3-4 channels/common, 5-6 channels/common) Isolation method: Photocoupler isolation Input current: 0 to 30 A: CTL-6-P-N 0 to 100 A: CTL-12-S56-10L-N Specify when ordering (Current transformer is sold separately)

  • Page 106: Di Module

    8. SPECIFICATIONS 8.4 DI Module 8.4.1 Digital input module (DI-A) Input Input type: Source type Number of inputs: 8 points Rated input voltage: 24 V DC Input voltage range: 21.6 to 26.4 V DC Rated input current: 6.7 mA/point (24 V DC) Input impedance: 3.6 kΩ...

  • Page 107: Do Module

    8. SPECIFICATIONS 8.5 DO Module 8.5.1 Digital output module (DO-A, B) Output Output type: DO-A: Relay contact output or open collector output DO-B: Relay contact output Number of outputs: DO-A: 8 points DO-B: 4 points Number of common points: Relay contact output: 2 points (4 points/common): DO-A type All points independent common output: DO-B type...
  • Page 108 8. SPECIFICATIONS Self-diagnostic Check item: RAM check Watchdog timer Operation at error occurrence in self-diagnosis: FAIL lamp lights Reset state General specifications 24 (W) × 96 (H) × 100 (D) mm Dimensions: Weight: DO-A: 140 g DO-B: 130 g IMSRM02-E6...

  • Page 109: Common Specifications

    8. SPECIFICATIONS 8.6 Common Specifications Control unit Power supply voltage: 100 to 120 V AC (50/60 Hz) 200 to 240 V AC (50/60 Hz) 24 V DC Specify when ordering Power supply voltage range: 100 to 120 V AC: 90 to 132 V AC 200 to 240 V AC: 180 to 264 V AC 24 V DC: 21.6 to 26.4 V DC...
  • Page 110 MEMO IMSRM02-E6...
  • Page 111 The 1st edition: Nov. 1994 The 6th edition: Aug. 2000...
  • Page 112 RKC INSTRUMENT INC. HEADQUARTERS: 16-6, KUGAHARA 5-CHOME, OHTA-KU TOKYO 146-8515 JAPAN PHONE: 03-3751-9799 (+81 3 3751 9799) E-mail: info@rkcinst.co.jp FAX: 03-3751-8585 (+81 3 3751 8585) IMSRM02-E6 AUG.2000...

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