!"Modbus is a registered trademark of Schneider Electric.
!"Company names and product names used in this manual are the trademarks or registered trademarks of
the respective companies.
All Rights Reserved, Copyright 2001, RKC INSTRUMENT INC.
Thank you for purchasing this 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.
SYMBOLS
WARNING
CAUTION
!
: This mark indicates precautions that must be taken if there is danger of electric
shock, fire, etc., which could result in loss of life or injury.
: This mark indicates that if these precautions and operating procedures are not
taken, damage to the instrument may result.
: This mark indicates that all precautions should be taken for safe usage.
: This mark indicates important information on installation, handling and operating
procedures.
: This mark indicates supplemental information on installation, handling and
operating procedures.
: This mark indicates where additional information may be located.
WARNING
!
An external protection device must be installed if failure of this instrument
!"
could result in damage to the instrument, equipment or injury to personnel.
All wiring must be completed before power is turned on to prevent electric
!"
shock, fire or damage to instrument and equipment.
This instrument must be used in accordance with the speci fications to pr ev ent
!"
fire or damage to instrument and equipment.
This instrument is not intended for use in locations subject to flammable or
!"
explosive gases.
Do not touch high-voltage connections such as power supply terminals, etc.
!"
to avoid electric shock.
RKC is not responsible if this instrument is repaired, modified or
!"
disassembled by other than factory-approved personnel. Malfunction can
occur and warranty is void under these conditions.
IMR01H03-E4
i-1
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.
Be sure to provide an appropriate surge contr ol cir c uit r espectively for the following:
!
- If input/output or signal lines within the building are longer than 30 mete r s.
- If input/output or signal lines leave the building, regardless the length.
This instrument is designed for installat ion in an enclosed instrument ation panel. All high-
!
voltage connections such as power supply terminals must be enclosed in the
instrumentation panel to avoid electric shock by operating personnel.
All precautions described in this manual should be taken to avoid damage to the
!
instrument or equipment.
All wiring must be in accordance with local codes and regulations.
!
All wiring must be completed before power is turned on to prevent electric shock,
!
instrument failure, or incor r ect action.
The power must be turned off before repairing work for input break and output failure
including replacement of sensor, contactor or SSR, and all wiring must be completed
before power is turned on again.
To prevent instrument damage or f ailure, protect t he power line and the input/output lines
!
from high currents with a protect ion device such as f use, circuit breaker, etc.
Prevent metal fragment s or lead wire scraps from falling inside instrum ent case to avoid
!
electric shock, fire or malfunction.
Tighten each terminal screw t o the specified torq ue found in the manual to avoid electric
!
shock, fire or malfunction.
For proper operation of this instrument, provide adequate ventilation for heat dispensation.
!
Do not connect wires to unused terminals as this will interf er e with proper operation of the
!
instrument.
Turn off the power supply befor e cleaning the instrument.
!
Do not use a volatile solvent such as paint thinner to clean the inst rum ent. Def ormat ion or
!
discoloration will occur. Use a soft, dry cloth to rem ove stains from the instrument.
To avoid damage to instrument display, do not rub with an abrasive material or push f ront
!
panel with a hard object.
Do not connect modular connectors to telephone line.
!
NOTICE
!
This manual is written for RKC service engineers or qualified technicians. This manual is also
prepared especially for readers who already have a fundamental knowledge of electricity, control,
computer and communication.
!
The figures, diagrams and numeric values used in this manual are only for purpose of illustration.
!
RKC is not responsible for any damage or injury that is caused as a result of using this instrument,
instrument failure or indirect damage.
!
Periodic maintenance is required for safe and proper operation of this instrument. Some
components have a limited service life, or characteristics that change over time.
!
Every effort has been made to ensure accuracy of all information contained herein. RKC makes no
warranty expressed or implied, with respect to the accuracy of the information. The information in
this manual is subject to change without prior notice.
!
No portion of this document may be reprinted, modified, copied, transmitted, digitized, stored,
processed or retrieved through any mechanical, electronic, optical or other means without prior
written approval from RKC.
i-2
IMR01H03-E4
CONTENTS
Page
1. PROCEDURE FOR INITIALIZATION....................................1
1. 1 Transfer to Engineering Mode.........................................................................2
1.2 Procedure for Parameter Setting.....................................................................4
1.3 End of Engineering Mode................................................................................9
2. DETAILS OF PARAMETER SETTING ...............................10
2.1 Attention Items in Setting...............................................................................12
2.9 F51 Control Action.........................................................................................29
2.10 F61 Communication Function......................................................................30
2.11 F91 Displayed for Maintenance Information................................................31
3. INITIALIZE COMMUNICATION DATA................................32
3.1 RKC Communication Protocol.......................................................................32
3.2 Modbus Communication Protocol..................................................................42
3.2.1 Communication data list ...................................................................................42
3.2.2 Data map..........................................................................................................49
4. INPUT RANGE TABLES.....................................................55
IMR01H03-E4
i-3
MEMO
i-4
IMR01H03-E4
1.PROCEDURE FOR INITIALIZATION
Initialization is to set parameters relating to instrument specifications (input type, input range, alarm
type, etc.). Engineering mode that can do this setting.
Initialization flowchart
!"
Power ON
1.1 Transfer to Engineering Mode.
Change from RUN to STOP
See
Unlock the engineering mode
Setting the initial parameter
Lock the engineering mode
End of initialization
1.1 Transfer to Engineering Mode.
See
1.2 Procedure for Paramet er Setting
See
2. DETAILS OF PARAMETER SETTING
See
1.3 End of Engineering Mode
See
.
.
.
IMR01H03-E4
1
1. PROCEDURE FOR INITIALIZATION
1.1 Transfer to Engineering Mode
MA900 is used in the below figures for explanation, but the same setting procedures also
apply to MA901.
The parameter of engineering mode can be changed only in the control STOP state.
1. Press the <R/S key with states of the PV/SV monitor mode for 1 second, to change the STOP
from RUN.
PV
CH
SV
AREA
SET
CH
MA900
R/S
STOP display
If set to the STOP state (dSTP) by the contact input, no parameters in Engineering mode
can be changed. They can be changed in case of the following.
• The instrument changed the STOP state (KSTP) by the key operation.
• The instrument changed the STOP state by both the key operation and contact input
operation.
For the RUN/STOP transfer, see the Instruction Manual (IMR01H01-E
####
)
2. Press the <R/S key while pressing the SET key with the PV/SV monitor mode change the
instrument to setup setting mode.
For the setup setting mode, see Instruction Manual (IMR01H01-E
####
).
3. Press the SET key several times to change to the lock level 2 display (LCK2).
4. Press the <R/S key to light brightly the hundreds digit on the SV display.
CH
PV
SV
AREA
SET
CH
MA900
R/S
Lock level 2 display
2
IMR01H03-E4
1. PROCEDURE FOR INITIALIZATION
5. Press the UP key to change 0 to 1 in the hundreds digit.
CH
PV
AREA
SV
Set value
0000: Lock
0100: Unlock
SET
CH
MA900
R/S
Lock level 2 display
6. Press the SET key to unlock the engineering mode. The display changes to the first parameter in
setup setting mode.
AREA
PV
CH
SV
SET
CH
MA900
R/S
AREA
PV
CH
SV
SET
CH
MA900
R/S
Lock level 2 display Autotuning display
7. Press the <R/S key for 2 seconds while pressing the SET key to change the engineering mode.
The display changes to the function block F10.
AREA
CH
PV
SV
SET
CH
MA900
R/S
AREA
CH
PV
SV
SET
CH
MA900
R/S
Autotuni ng d isplay
Function block F10 display
Engineering mode
IMR01H03-E4
3
1. PROCEDURE FOR INITIALIZATION
1.2 Procedure for Parameter Setting
Flowchart of displaying parameter items
!"
!"
!"!"
Display flowcharts in engineering mode are shown in the following.
[: Press the SET key: Press the UP or DOWN key]
STOP display
selection
PV
SV
(F10.)
(SPCH)
Return to the
F10
Input type
selection
(F21.)
(F22.)
(F24.)
(F31.)(LGo1)(LGo2)
(InP)(UnIT)(PGdP)(SLH)(SLL)
CT ratio 1
selection
(CTr1)
Contact input
logic selection
(dlSL)
Control output
logic selection 1
Alarm output
logic selection
Display unit
selection
CT ratio 2
selection
(CTr2)
Return to the
Control output
logic selection 2
F24
.
Decimal point
position setting
Return to the
Return to the
F22
F31
.
.
Setting limiter
(high limit) setting
Setting limiter
(low limit) setting
Return to the
F21
Any parameter whose channel number is
displayed can be set for each channel.
(Check the channel number on the
channel display of instrument.)
All of the channels can be
simultaneously s et as the same value.
All the setting item is displayed regard
less of the contents of the instrument
specification.
.
AB
4
(F32.)
(F41.)
Return to the
(LGA)
Alarm type
selectionAlarm 1
(AS1)(AHo1)(AH1)(ALT1)(AEo1)
Alarm hold
action selection
F32
.
Alarm differential
gap setting
Alarm timer
setting
Action selection at
input error
Return to the
.
F41
IMR01H03-E4
1. PROCEDURE FOR INITIALIZATION
A
(F42.)(AS2)
(F43.)(AS3)
(F61.)(CMPS)
B
Alarm 2
Alarm 3
Alarm type
selection
Alarm type
selection
Control action
type selection
(oS)(oH)(F51.)
Communication
protocol selection
ROM version
display
Alarm hold
action selection
(AHo2)
Alarm hold
action selection
(AHo3)
ON/OFF action
differential gap setting
RUN/STOP transfer
logic selection
(CMLG)
Integrated operating
time display
(Upper 3 digits)
Alarm differential
gap setting
(AH2)
Alarm differential
gap setting
(AH3)
Return to the
Return to the
F51
F61
Integrated operating
time display
(Lower 4 digits)
Alarm timer
setting
(ALT2)
Alarm timer
setting
(ALT3)
.
.
Holding peak ambient
temperature display
Action selection at
input error
(AEo2)
Action selection at
input error
(AEo3)
Return to the
.
F42
Return to the
.
F43
(F91.)( E261)(WTH)
(WTL)(TCJ)
Return to the
F91
.
IMR01H03-E4
5
1. PROCEDURE FOR INITIALIZATION
!"
!"Example of changing the setting
!"!"
As setting procedure example, show procedure at setting with each channel (Usual setting) and
channel common (Batch setting).
MA900 is used in the below figures for explanation, but the same setting procedures also
apply to MA901.
Example 1:
The following procedure is for changing the CH1 input type from “K” to “J.” (Usual setting)
1. Press the UP key to change the display to F21.
PV
CH
SV
AREA
SET
CH
MA900
R/S
Function block display
2. Press the SET key to change to input type selection (InP).
PV
CH
SV
AREA
SET
CH
MA900
Input type selection
R/S
3. Press the UP key to enter 1 in the least significant digit of the set value (SV) display.
PV
CH
SV
AREA
SET
CH
MA900
Input type selection
6
R/S
IMR01H03-E4
1. PROCEDURE FOR INITIALIZATION
4. Press the SET key to register the value thus set. The display changes to the next parameter.
AREA
CH
PV
SV
SET
CH
MA900
R/S
AREA
CH
PV
SV
SET
CH
MA900
R/S
Display unit selection Input type selection
Example 2:
The following procedure is for changing all channels of the input type from “K” to “J.” (Batch
setting)
1. Press the UP key to change the display to F21.
PV
CH
SV
AREA
SET
CH
MA900
Function block display
R/S
2. Press the SET key to change to input type selection (InP).
PV
CH
SV
AREA
SET
CH
MA900
Input type selection
R/S
IMR01H03-E4
7
1. PROCEDURE FOR INITIALIZATION
3. Press the CH key several times. Display the character A on th e CH d isp lay and “ ----” on the SV
display. The character A indicates that the batch setting.
PV
CH
SV
AREA
SET
CH
MA900
R/S
Input type selection
Every time the CH key is pressed, the channel number changes as follows.
4. Press the UP key several times to enter 1 in the least significant digit of the set value (SV)
display.
PV
CH
SV
AREA
SET
CH
MA900
Input type selection
R/S
5. Press the SET key to register the value thus set. The display changes to the next parameter.
Press the CH key to return to the usual setting from the batch setting.
CH
PV
AREA
SV
SET
CH
MA900
R/S
Input type selection
CH
PV
AREA
SV
SET
CH
MA900
R/S
Display unit selection
(Batch setting)
CH
PV
AREA
SV
SET
CH
MA900
R/S
Display unit selection
(Usual setting)
If the selected parameter corresponds to the setting item in common to all channels, the
simultaneous setting state returns to the normal setting state.
8
IMR01H03-E4
1. PROCEDURE FOR INITIALIZATION
1.3 End of Engineering Mode
MA900 is used in the above figures for explanation, but the same setting procedures also
apply to MA901.
##
1. Transfer to function block symbol display (F
2. Press the <R/S key for 2 seconds while pressing the SET key to change to the PV/SV monitor
mode from the engineering mode.
3. Press the <R/S key while pressing the SET key with the PV/SV monitor mode change the
instrument to setup setting mode.
4. Press the SET key several times to change to the lock level 2 display (LCK2).
5. Press the <R/S key to light brightly the hundreds digit on the SV display.
) after each parameter is set.
6. Press the DOWN key to change 1 to 0 in the hundreds digit.
PV
AREA
CH
SV
Set value
0000:Lock
0100: Unlock
SET
CH
MA900
Lock lev el 2 display
R/S
7. Press the SET key to lock the engineering mode. The display changes to the first parameter in
setup setting mode.
PV
AREA
CH
SV
SET
CH
MA900
R/S
AREA
PV
CH
SV
SET
CH
MA900
R/S
Lock level 2 display
Autotuning display
8. Press the <R/S key while pressing the SET key to change to the PV/SV monitor mode from the
setup setting mode. Thus, the initialization ends.
IMR01H03-E4
9
2.DETAILS OF PARAMETER SETTING
!"Parameter list
Function blockParameterPage
Display functionSTOP display selection(SPCH)P. 17
(F10.)
(F21.)
Input
specification
Input type selection(InP)P. 18
Display unit selection(UnIT)
Decimal point position selection(PGdP)P. 19
(F22.)
(F24.)
(F31.)
(F32.)
(F41.)
Setting limiter (high limit)
(SLH)
setting
Setting limiter (low limit)
(SLL)
setting
Current
CT ratio 1 selection(CTr1)P. 20
transformer (CT)
input
CT ratio 2 selection(CTr2)
specification
Contact input
If any of the following parameter is changed, the relevant set value is initialized or is automatically
converted.
Before changing the set values, always record all of them (SV setting & CT monitor mode,
setup setting mode, parameter setting mode and engineering mode).
After changing the set values, always check all of them (SV setting & CT monitor mode,
setup setting mode, parameter setting mode and engineering mode).
When changed parameter of input type selection or engineering unit setting
!"
!"
!"!"
When change a input type and unit, all the set value of a list shown below is initialized. Set it in value
to use once again.
Alarm 1 differential gap2 °C [°F]2.0 °C [°F]0.2 % of span
Alarm 1 action at input error0 (Without action at input error)
EngineeringAlarm 2 hold action0 (Without alarm hold action)
modeAlarm 2 differential gap2 °C [°F]2.0 °C [°F]0.2 % of span
Alarm 2 action at input error0 (Without action at input error)
Alarm 3 hold action0 (Without alarm hold action)
Alarm 3 differential gap2 °C [°F]2.0 °C [°F]0.2 % of span
Alarm 3 action at input error0 (Without action at input error)
ON/OFF action differential gap2 °C [°F]2.0 °C [°F]0.2 % of span
Heater break alarm 1OFF
Setup settingHeater break alarm 2
3
OFF
modePV bias0 °C [°F]0.0 °C [°F]0.0 %
Digital filterOFF
1
0: No digit below decimal point
2
1: 1 digit below decimal point
3
In case of MA901, this item is not provided.
12
Continued on the next page.
IMR01H03-E4
2. DETAILS OF PARAMETER SETTING
Continued from the previous page.
ModeDescriptionDefault value
TC inputRTD inputVoltage input
Control loop break alarm8.0 minutes
Control loop break alarm
0 °C [°F]0.0 °C [°F]0.0 %
deadband
Alarm 150 °C [°F]50.0 °C [°F]5.0 % of span
Alarm 2
ParameterAlarm 3
setting modeHeat-side proportional band30 °C [°F]30.0 °C [°F]3.0 % of span
Integral time240 seconds
Derivative time60 seconds
Anti-reset windup100 %
Cool-side proportional band *100 % of heat-side proportional band
Overlap/deadband *0 °C [°F]0.0 °C [°F]0.0 %
Setting changing rate limiterOFF
SV setting &
Set value (SV)0 °C [°F]0.0 °C [°F]0.0 %
CT monitor
mode
* In case of MA901, these items are not provided.
IMR01H03-E4
13
2. DETAILS OF PARAMETER SETTING
When changed parameter of decimal point position setting
!"
!"
!"!"
When change a decimal point position, it is converted into about set value of a list shown below
automatically. However, the set value may change as a result of changing the position of the decimal
point. Therefore in that case, re-set it to the value to be used.