T
r
Module Type Controller SRZ
RKC INSTRUMENT INC.
®
Current Transforme
Instruction Manual
Input Module
Z-C
[Detailed version]
IMS01T21-E2
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 2007, 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 where additional information may be located.
An external protection device must be installed if failure of this instrument
could result in damage to the instrument, equipment or injury to personnel.
: 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.
WARNING
!
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 specifications to
prevent 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.
IMS01T21-E2
i-1
CAUTION
This product is intended for use with industrial machines, test and measuring equipment.
(It is not designed for use with medical equipment and nuclear energy.)
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 control circuit respectively for the following:
- If input/output or signal lines within the building are longer than 30 meters.
- If input/output or signal lines leave the building, regardless the length.
This instrument is designed for installation in an enclosed instrumentation 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 incorrect 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 failure, protect the power line and the input/output lines from
high currents with a protection device such as fuse, circuit breaker, etc.
Prevent metal fragments or lead wire scraps from falling inside instrument case to avoid
electric shock, fire or malfunction.
Tighten each terminal screw to the specified torque 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 interfere with proper operation of the
instrument.
Turn off the power supply before cleaning the instrument.
Do not use a volatile solvent such as paint thinner to clean the instrument. Deformation or
discoloration will occur. Use a soft, dry cloth to remove stains from the instrument.
To avoid damage to instrument display, do not rub with an abrasive material or push front
panel with a hard object.
Do not connect modular connectors to telephone line.
NOTICE
This manual assumes that the reader has a fundamental knowledge of the principles of electricity,
process control, computer technology and communications.
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.
RKC is not responsible for any damage and/or injury resulting from the use of instruments made by
imitating this instrument.
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
IMS01T21-E2
CONTENTS
1. OUTLINE ...........................................................................1-1
1.1 Features .......................................................................................................1-2
1.2 Checking the Product ...................................................................................1-3
1.3 Model Code ..................................................................................................1-4
1.4 Parts Description ..........................................................................................1-5
1.5 Corresponding to the SRZ Modules and Communication Protocol...............1-7
1.6 Application of Z-CT Module ..........................................................................1-8
2. HANDLING PROCEDURE TO OPERATION .................... 2-1
Page
3. MOUNTING ........................................................................3-1
3.1 Mounting Cautions........................................................................................3-2
3.2 Dimensions...................................................................................................3-4
3.3 Joinable Number of Modules ........................................................................3-5
3.4 DIN Rail Mounting and Removing ................................................................3-6
3.5 Panel Mounting.............................................................................................3-8
4. WIRING .............................................................................4-1
4.1 Wiring Cautions ............................................................................................4-2
4.2 Connecting Precautions ...............................................................................4-4
4.3 Terminal Configuration .................................................................................4-5
4.3.1 CT input terminals................................................................................................... 4-5
4.3.2 Power supply terminals and communication terminals............................................4-7
4.4 Connection to Host Computer ......................................................................4-8
4.5 Installation of Termination Resistor ............................................................4-13
4.6 Connections for Loader Communication ....................................................4-15
5. SETTINGS BEFORE OPERATION .....................................5-1
5.1 Module Address Setting ...............................................................................5-2
5.2 Protocol Selections and Communication Speed Setting...............................5-3
5.3 Operating Precautions..................................................................................5-4
IMS01T21-E2 i-3
6. HOST COMMUNICATION .................................................6-1
6.1 RKC Communication ....................................................................................6-2
6.1.1 RKC communication protocol..................................................................................6-2
6.1.2 RKC communication data list ..................................................................................6-2
6.2 Modbus.........................................................................................................6-5
6.2.1 Modbus communication protocol ............................................................................6-5
6.2.2 Data configuration................................................................................................... 6-5
6.2.3 Caution for handling communication data ...............................................................6-5
6.2.4 Modbus communication data list.............................................................................6-6
6.3 Automatic Setting Example.........................................................................6-12
6.3.1 Automatic setting procedure .................................................................................6-13
6.3.2 Preparation of loader communication....................................................................6-14
6.3.3 Data settings before execution of automatic setting.............................................. 6-15
6.3.4 Procedure for executing automatic setting ............................................................ 6-21
Page
7. COMMUNICATION DATA DESCRIPTION......................... 7-1
7.1 Reference to Communication Data Contents ...............................................7-2
7.2 Communication Data ....................................................................................7-3
8. TROUBLE SHOOTING ......................................................8-1
9. SPECIFICATIONS .............................................................9-1
i-4
IMS01T21-E2
OUTLINE
1.1 Features ...........................................................................................1-2
1.2 Checking the Product .......................................................................1-3
1.3 Model Code ......................................................................................1-4
1.4 Parts Description ..............................................................................1-5
1.5 Corresponding to the SRZ Modules
and Communication Protocol................................1-7
1.6 Application of Z-CT Module ..............................................................1-8
IMS01T21-E2 1-1
1. OUTLINE
1.1 Features
The module type controller has the following features:
The current transformer input module Z-CT (hereafter called Z-CT module) has 12 current transformer
(CT) inputs (hereafter called CT inputs), and is a functional module that is used exclusively for the module
type controller SRZ. Z-CT module interfaces with the host computer via Modbus or RKC communication
protocols. The Z-CT module sets all of the data items via communication (The communication interface
used for both protocols is RS-485). Therefore before operation, it is necessary to set value of each data item
via communication.
Heater break alarm (HBA) and heater overcurrent alarm are possible
A Z-TIO module or Z-DIO module can be connected to a Z-CT module to enable the use of heater break
alarm (HBA), heater melting alarm, and heater overcurrent alarm. (Time proportional output is supported.)
Both heater break alarm (HBA) and heater overcurrent alarm can be used with one CT input.
(Either alarm can also be used alone.)
• A Z-CT module can be connected to a Z-TIO module to enable heater break alarm (HBA) and heater
overcurrent alarm for three-phase loads.
• When the output distribution function is used with a Z-DIO module, a Z-CT module can be connected
to enable heater break alarm (HBA) and heater overcurrent alarm for distribution output.
Heater break alarm (HBA) and heater overcurrent can be set automatically
The heater break alarm (HBA) set value and heater overcurrent alarm set value can be automatically set
using the push button on the front of the Z-CT module or by communication.
CTs other than the specified CTs can also be used
CTs other than the specified CTs can be used by changing the CT type and CT ratio settings. There are
certain requirements for the CTs that can be used.
For details of CT condition, see on page 7-18.
Specified CTs
• CTL-6-P-Z (0.0 to 10.0 A)
• CTL-6-P-N (0.0 to 30.0 A)
• CTL-12-S56-10L-N (0.0 to 100.0 A)
12-point current measurement is possible with a single module
Up to 12 current transformers can be connected to one Z-CT module.
Up to 16 Z-CT modules can be connected, enabling 192-point current measurement.
When used for current measurement applications, a Z-CT module can be used by itself.
Some usage conditions may prevent the current transformer (CT) input value monitor
from showing the root mean squared current value. (See P. 7-4)
1-2 IMS01T21-E2
1.2 Checking the Product
Before using this product, check each of the following:
Model code
Check that there are no scratch or breakage in external appearance (case, front panel, or terminal, etc.)
Check that all of the items delivered are complete. (See below)
If any of the products are missing, damaged, or if your manual is incomplete, please contact RKC
sales office or the agent.
Package contents
1. OUTLINE
Name Q’TY
Z-CT module 1
Z-CT Instruction Manual (IMS01T16-E) 1 Enclosed with instrument
Joint connector cover KSRZ-517A 2 Enclosed with instrument
Power terminal cover KSRZ-518A 1 Enclosed with instrument
Remarks
Option (Sold separately)
Name Q’TY
End plate DEP-01 2
Connector SRZP-01 (front screw type) 2 For the connector type module
Connector SRZP-02 (side screw type) 2 For the connector type module
Terminal cover KSRZ-510A 1 For the terminal type module
Current transformer CTL-6-P-Z 1 0.0 to 10.0 A
Current transformer CTL-6-P-N 1 0.0 to 30.0 A
Current transformer CTL-12-S56-10L-N 1 0.0 to 100.0 A
Z-CT Instruction Manual [Detailed version]
(IMS01T21-E2)
1 This manual (separately) *
* This manual can be downloaded from our website:
URL: http://www.rkcinst.com/english/manual_load.htm
Remarks
IMS01T21-E2 1-3
1. OUTLINE
1.3 Model Code
Check whether the delivered product is as specified by referring to the following model code list. If the
product is not identical to the specifications, please contact RKC sales office or the agent.
Suffix code
Z-CT-A□／□－□□
(1) (2) (3) (4)
Suffix code Initial setting code
Specifications Hardware coding only Quick start code
(1) (2) (3) (4)
Wiring type
Quick start code
CT type
Communication
protocol
Terminal type T
Connector type
No quick start code (Configured as factory default) * N
Specify quick start code 1
No specify quick start code No code
CTL-6-P-N P
CTL-12-S56-10L-N S
CTL-6-P-Z
No specify quick start code No code
RKC communication (ANSI X3.28) 1
Modbus 2
C
Z
* Factory set value: CT type: P: CTL-6-P-N
Communication protocol: RKC communication (ANSI X3.28)
1-4 IMS01T21-E2
A
A
A
A
1.4 Parts Description
Module mainframe
<Terminal type>
Loader
communication
connector
utomatic
setting state
indication lamp
Current
transformer (CT)
input terminals
<Connector type>
Loader
communication
connector
utomatic
setting state
indication lamp
Current
transformer (CT)
input terminals
FAIL/ UNR
RX/TX
C
B
LOADER
A
9
8
7
6
5
SET
CT
FAIL/ UNR
RX/TX
C
B
A
LOADER
9
8
7
6
5
SET
CT
CN3
CN4
D
E
F
0
1
2
3
4
D
E
F
0
1
2
3
4
CN1
CN2
Indication lamps
ddress setting switch
Push button
Indication lamps
ddress setting switch
Push button
1. OUTLINE
(Right side)
DIP switch
Module
mainframe
Base
(Right side)
DIP switch
Module
mainframe
Base
Indication lamps
FAIL/RUN [Green or Red] When normal (RUN): A green lamp is on
Self-diagnostic error (FAIL): A green lamp flashes
Instrument abnormality (FAIL): A red lamp is on
RX/TX [Green] During data send and receive: A green lamp turns on
SET [Green] During automatic setting execution: A green lamp is on
(Automatic setting state indication lamp) Automatic setting failure: A green lamp flashes *
* Flashes if automatic setting fails for even one channel among the CT input channels for which automatic setting is being
executed.
Button
Push button
Use when the heater break alarm set value or heater overcurrent
alarm set value should be automatically set.
Switches
Address setting switch Sets the Z-CT module address. (See P. 5-2)
DIP switch
Sets the communication speed, data bit configuration, and
communication protocol. (See P. 5-3)
IMS01T21-E2 1-5
1. OUTLINE
f
Base
Mounting holes (M3 screw)
Holes for screws to fix the base to
a panel, etc.
Customer must provide the M3 screws.
Mounting bracket
Used to fix the module on DIN rails and
also to fix each module joined together.
(Front view)
Joint connector
Used to mechanically and electrically connect
each module.
Power supply terminals
Supply power to only one of the joined
modules, and all of the joined modules will
receive power.
(See 4.1 Wiring Cautions)
Communication terminals (RS-485)
Connect communication wires to only one o
the joined modules, and all of the joined
modules will communicate.
(Rear view)
1-6
IMS01T21-E2
1. OUTLINE
1.5 Corresponding to the SRZ Modules and Communication Protocol
SRZ modules and communication protocols that can be connected to and used with the Z-CT module are shown
in the table below.
Can be used: × Cannot be used: −
The connectable
SRZ module
Communication protocols
RKC communication Modbus PLC communication
Z-TIO-A/Z-TIO-B
Z-TIO-C/Z-TIO-D
Z-TIO-E/ Z-TIO-F
Z-DIO-A
Z-COM-A
× ×
× × −
× × −
× ×
− − −
IMS01T21-E2 1-7
1. OUTLINE
1.6 Application of Z-CT Module
For three-phase load alarm monitoring
For three-phase loads, two CT inputs are used for one control output.
When a Z-TIO module is connected to a three-phase load, the CT input (option) of the Z-TIO module does
not allow heater break alarms (HBA) and heater overcurrent alarms to be added to all control outputs.
A Z-CT module can be connected to the Z-TIO module to add heater break alarms (HBA) and heater
overcurrent alarms to the control outputs that could not be handled by the CT input (option) of the Z-TIO
module.
When the Z-TIO-B module (2-channel type) is used
CH1 control output
CH2
control
output
Power supply
24 V DC
SSR
R
U
S
V
T
W
CT input
SSR
R
S
T
U
V
W
CT input
CT input
Three-phase load
The heater break-alarm (HBA) and heater overcurrent alarm of the Z-CT module corresponds to
the time proportional output.
Z-CT module Z-TIO-B module
CT
RKC communication
Modbus
CT input
Three-phase load
Host
computer
RS-232C
RS-232C/RS-485
converter
RS-485
1-8 IMS01T21-E2
1. OUTLINE
For alarm monitoring of distribution output
When the output distribution function is used with a Z-DIO module, a Z-CT module can be connected to enable
detection of heater break and heater overcurrent in distribution output.
Z-DIO
module
CH1 control output
DIO CTTIO
TC
Power
supply
DC 24 V
Hot plate
Heater 1 Heater 2
Heater 3
CT input
CT input
CT input
SSR
SSR
SSR
The heater break-alarm (HBA) and heater overcurrent alarm of the Z-CT module corresponds to
the time proportional output.
For the output distribution function, see SRZ Instruction Manual (IMS01T04-E).
Z-CT module Z-TIO module
Distribution output
Host
computer
RS-232C
RS-232C/RS-485
converter
RS-485
RKC communication
Modbus
IMS01T21-E2
1-9
1. OUTLINE
For CT input value monitor
One Z-CT module is capable of monitoring 12 channels of current.
When only used for CT input value monitoring, the Z-CT module can be used by itself; connection to
another SRZ functional module (Z-TIO or Z-DIO module) is not necessary.
Some usage conditions may prevent the current transformer (CT) input value monitor
from showing the root mean squared current value. (See P. 7-4)
Load
SSR
CT input
Load
SSR
CT input
Load
SSR
CT input
Z-CT module
RKC communication
Power supply
24 V DC
You can confirm the current value by
the current transformer (CT) input
value monitor.
Host
computer
RS-232C
RS-232C/RS-485
converter
RS-485
Modbus
1-10
IMS01T21-E2
HANDLING
PROCEDURE TO
OPERATION
2.1 ******** ..............................................................................................2-2
2.2 *******................................................................................................2-3
IMS01T21-E2 2-1
2. HANDLING PROCEDURE TO OPERATION
f
Procedure flow chart
Before configuring settings, complete installation of the SRZ and host computer and make all connections.
Once installation and the connections are completed, follow the procedure below to configure settings
required for operation.
(1) When the Z-CT module is connected to a Z-TIO module or Z-DIO module
Processing of
the host computer side
Preparation of
communication program
Execute it after turning
on a power supply of the
host computer.
communication relation
Setting of
• Communication speed setting
• Data bit configuration
• Communication port setting
Power-OFF
Power-ON
Turn on the power of the host computer and SRZ.
Communication program start
Set the engineering setting
data of Z-TIO and Z-DIO
modules
Set the Input scale high/low limit, Input range decimal point position, Control type, Event type etc.
A
Processing of the SRZ side
Execute it after turning
off a power supply o
the SRZ unit.
Setting of
communication relation
Set the host computer
and SRZ in always
the same value.
Before setting operation data items, always set initial setting data items so as to
satisfy the specification used.
For the engineering setting data items of Z-TIO module and Z-DIO module, see SRZ
Instruction Manual (IMS01T04-E).
• Communication speed setting
• Data bit configuration
• Communication protocol selection
See 5.2 Protocol Selections
and Communication Speed
Setting (P. 5-3).
Module address setting
See 5.1 Module Address
Setting (P. 5-2).
2-2 IMS01T21-E2
2. HANDLING PROCEDURE TO OPERATION
A
Set the normal setting data
of Z-TIO and Z-DIO modules
Set parameters in Normal setting of data.
For the normal setting data of Z-TIO module and Z-DIO module, see SRZ Instruction
Manual (IMS01T04-E).
Sets the data of
Z-CT module
Before starting automatic setting, always set the data of heater break alarm (HBA) or
heater overcurrent alarm.
Set the heater break/heater overcurrent alarm automatic setting selection, Module address
assignments for CT input, Module channel assignments for CT input, etc.
For the automatic setting, see 6.3 automatic setting example (P. 6-12).
Temperature rise start
Power on the load.
Set the SRZ unit to RUN (start control).
For the RUN/STOP transfer of SRZ unit, see SRZ instruction Manual (IMS01T04-E).
Automatic setting start
Start automatic setting of the heater break alarm (HBA) or heater overcurrent alarm using the push
button or communication.
For the procedure for starting automatic setting, see 6.3.4 Procedure for executing
automatic setting (P. 6-21).
Operation start
IMS01T21-E2
2-3
2. HANDLING PROCEDURE TO OPERATION
f
(2) Using the Z-CT module by itself (using as a CT input monitor)
Some usage conditions may prevent the current transformer (CT) input value monitor
from showing the root mean squared current value. (See P. 7-4)
Communication program start
CT input value monitor start
Processing of
the host computer side
Preparation of
communication program
Execute it after turning
on a power supply of the
host computer.
Setting of
communication relation
• Communication speed setting
• Data bit configuration
• Communication port setting
Power-OFF
Power-ON
Turn on the power of the host computer and SRZ.
Operation start
Set the host computer
and SRZ in always
the same value.
Processing of the SRZ side
Setting of
communication relation
• Communication speed setting
• Data bit configuration
• Communication protocol selection
Module address setting
Execute it after turning
off a power supply o
the SRZ unit.
See 5.2 Protocol Selections
and Communication Speed
Setting (P. 5-3).
See 5.1 Module Address
Setting (P. 5-2).
2-4
IMS01T21-E2
MOUNTING
3.1 Mounting Cautions ...........................................................................3-2
3.2 Dimensions.......................................................................................3-4
3.3 Joinable Number of Modules............................................................3-5
3.4 DIN Rail Mounting and Removing ....................................................3-6
3.5 Panel Mounting ................................................................................3-8
IMS01T21-E2 3-1
3. MOUNTING
3.1 Mounting Cautions
This chapter describes installation environment, mounting cautions, dimensions and mounting procedures.
To prevent electric shock or instrument failure, always turn off the power before
mounting or removing the instrument.
(1) This instrument is intended to be used under the following environmental conditions.
(IEC61010-1) [OVERVOLTAGE CATEGORY II, POLLUTION DEGREE 2]
(2) Use this instrument within the following environment conditions.
• Allowable ambient temperature: −10 to +50 °C
• Allowable ambient humidity: 5 to 95 % RH
(Absolute humidity: MAX.W.C 29.3 g/m
• Installation environment conditions: Indoor use
Altitude up to 2000 m
WARNING
!
3
dry air at 101.3 kPa)
(3) Avoid the following conditions when selecting the mounting location:
• Rapid changes in ambient temperature which may cause condensation.
• Corrosive or inflammable gases.
• Direct vibration or shock to the mainframe.
• Water, oil, chemicals, vapor or steam splashes.
• Excessive dust, salt or iron particles.
• Excessive induction noise, static electricity, magnetic fields or noise.
• Direct air flow from an air conditioner.
• Exposure to direct sunlight.
• Excessive heat accumulation.
(4) Take the following points into consideration when mounting this instrument in the panel.
• Provide adequate ventilation space so that heat does not build up.
• Do not mount this instrument directly above equipment that generates large amount of heat (heaters,
transformers, semi-conductor functional devices, large-wattage resistors).
• If the ambient temperature rises above 50 °C, cool this instrument with a forced air fan, cooler, or the like.
However, do not allow cooled air to blow this instrument directly.
• In order to improve safety and the immunity to withstand noise, mount this instrument as far away as
possible from high voltage equipment, power lines, and rotating machinery.
− High voltage equipment: Do not mount within the same panel.
− Power lines: Separate at least 200 mm
− Rotating machinery: Separate as far as possible
(5) This instrument is Permanently connected to equipment, please take the following points.
• A switch or circuit-breaker shall be included in the building installation.
• It shall be in close proximity to the equipment and within easy reach of the operator.
• It shall be marked as the disconnecting device for the equipment.
3-2 IMS01T21-E2
3. MOUNTING
• Space required between each module vertically
When the module is mounted on the panel, allow a minimum of 50 mm at the top and bottom of the module
to attach the module to the mainframe.
50 mm or more
• Depth for connector mount type module (Connector type)
Space for connectors and cables must be considered when installing.
76.9 mm Approx. 50 mm
Connector
(Plug)
• Mounting the joint connector cover
It is recommended to use a plastic cover on the connector on both sides of the mounted modules for
protection of connectors.
Joint connector cover
Joint connector cover (Standard equipment)
Parts code Ordering code Q’ty
KSRZ-517A 00433384 2
• Installing direction of SRZ unit
Mount the SRZ unit in the direction specified as shown below.
IMR01W21-E2
Top
Bottom
3-3
3. MOUNTING
3.2 Dimensions
<Terminal type module>
100
85
(Unit: mm)
30 6.7
5
<Connector type module>
99
76.9 2.9
100
5
Connector type (sold separately):
SRZP-01 [Front-screw type]
89.7
76.9 2.9
100
5
Connector type (sold separately):
SRZP-02 [Side-screw type]
(Unit: mm)
30 6.7
3-4 IMS01T21-E2
3. MOUNTING
3.3 Joinable Number of Modules
The maximum number of functional modules (Z-TIO, Z-DIO or Z-CT module) that can be connected at a
time is indicated below.
When connecting only Z-CT modules: Up to 16 modules
When connecting only the Z-CT modules
Up to 16 modules
(
)
SRZ unit
When connecting two or more different types of functional modules: Up to 31 modules
(However, the number of connected function modules of the same type must not exceed the maximum)
When connecting Z-TIO-A modules and Z-CT modules
Z-TIO-A modules: 16 modules Z-CT modules: 15 modules
SRZ unit
Up to 31 modules on entire SRZ unit
When connecting Z-TIO-A, Z-DIO and Z-CT modules
Z-TIO-A modules: 12 modules Z-DIO modules: 9 modules
Z-CT modules: 10 modules
SRZ unit
Up to 31 modules on entire SRZ unit
IMS01T21-E2 3-5
3. MOUNTING
r
3.4 DIN Rail Mounting and Removing
Mounting procedures
1. Pull down the mounting bracket at the bottom of the module (A). Attach the hooks on the top of the
module to the DIN rail and push the lower section into place on the DIN rail (B).
2. Slide the mounting bracket up to secure the module to the DIN rail (C).
DIN rail
Mounting
bracket
(A) Pull down
(B)
Push
(C) Locked
3. Mount the modules on the DIN rail. Slide the modules until the modules are closely joined together
and the joint connectors are securely connected.
Front view of module mainframe
(
Joint connecto
)
4. Push in the mounting brackets to lock the modules together and fix to the DIN rail.
Rear view of base
(
)
State where
each module is
locked.
Mounting
bracket
Push in all of the mounting brackets.
3-6 IMS01T21-E2
5. Connect the required number of functional modules.
3. MOUNTING
6. Install a
plastic cover on the connector on both sides of the mounted modules for protection of
connectors.
To firmly fix the modules, use end plates on both sides of the mounted modules.
End plate
(sold separately)
Removing procedures
Joint connector cover
End plate
(sold separately)
End plate
Parts code
DEP-01
Ordering code
00434944
Q’ty
2
1. Pull down a mounting bracket with a blade screwdriver (A).
2. Lift the module from bottom, and take it off (B).
IMS01T21-E2
(A) Pull down
(B) Lift and take off
3-7
3. MOUNTING
3.5 Panel Mounting
Mounting procedures
1. Refer to the mounting dimensions below when selecting the location.
0.2
±
100
70
(30)
38
30±0.2
M3
Recommended screw:
M3 × 10
Recommended
tightening torque:
0.3 N･m (3 kgf･cm)
Base
Mounting dimensions
2. Remove the base from the module (B) while the lock is pressed (A). (Fig.1)
Lock
(B)
(Unit: mm)
(A)
(Bottom of the module mainframe)
Fig. 1: Removing the base
3. Join bases. Then, lock them by pushing in the mounting brackets.
See the 3.4 DIN Rail Mounting and Removing (P.3-6).
4. Fix the base to its mounting position using M3 screws. Customer must provide the screws.
5. Mount the module on the base. (Fig.2)
(Top of the module mainframe)
(Base)
Fig. 2: Mounting the module mainframe
3-8 IMS01T21-E2
WIRING
4.1 Wiring Cautions................................................................................4-2
4.2 Connecting Precautions...................................................................4-4
4.3 Terminal Configuration .....................................................................4-5
4.3.1 CT input terminals .....................................................................................4-5
4.3.2 Power supply terminals and communication terminals ..............................4-7
4.4 Connection to Host Computer ..........................................................4-8
4.5 Installation of Termination Resistor ................................................4-13
4.6 Connections for Loader Communication ........................................4-15
IMS01T21-E2 4-1
4. WIRING
4.1 Wiring Cautions
To prevent electric shock or instrument failure, do not turn on the power until all
the wiring is completed.
WARNING
!
• To avoid noise induction, keep input/output signal wires away from instrument power line, load lines and
power lines of other electric equipment.
• If there is electrical noise in the vicinity of the instrument that could affect operation, use a noise filter.
− Shorten the distance between the twisted power supply wire pitches to achieve the most effective noise
reduction.
− Always install the noise filter on a grounded panel. Minimize the wiring distance between the noise
filter output and the instrument power supply terminals to achieve the most effective noise reduction.
− Do not connect fuses or switches to the noise filter output wiring as this will reduce the effectiveness of
the noise filter.
• Power supply wiring must be twisted and have a low voltage drop.
• For an instrument with 24 V power supply, supply power from a SELV circuit.
• A suitable power supply should be considered in the end-use equipment. The power supply must be in
compliance with a limited-energy circuits (maximum available current of 8 A).
• Supply the power to only one of the joined modules. When power is supplied to any one of the joined
modules, all of the joined modules will receive power.
• Select the power capacity which is appropriate for the total power consumption of all joined modules and
the initial current surge when the power is turned on.
Z-CT module power consumption (at maximum load): 35 mA max. (at 24 V DC)
Rush current: 10 A or less
• For the power supply terminals and communication terminals, use the specified solderless terminals.
Only these specified solderless terminals can be used due to the insulation between the terminals.
Screw Size: M3 × 7 (with 5.8 × 5.8 square washer)
Recommended tightening torque:
0.4 N･m (4 kgf･cm)
Applicable wire: Solid/twisted wire of 0.25 to 1.65 mm
2
φ
5.5 MAX
φ
3.2 MIN
φ
3.2
Specified solderless terminals:
Manufactured by J.S.T MFG CO., LTD.
Circular terminal with isolation V1.25−MS3
(M3 screw, width 5.5 mm, hole diameter 3.2 mm)
5.6 mm
9.0 mm
Connecting solderless terminals to CT input terminals (terminal type module)
When using a non-specified CT, use solderless terminals that are the same size as the above.
A spade terminal (Y type) can also be used if it is the same size.
4-2 IMS01T21-E2
• For the connector type module, use the following our connector (plug) [sold separately].
Connector type: SRZP-01 (Front-screw type)
SRZP-02 (Side-screw type)
Screw size: M2.5
Recommended tightening torque:
0.43 to 0.50 N･m (4.3 to 5.0 kgf･cm)
Used cable specifications*:
Lead wire type:
2
Solid (AWG 28 [cross-section: 0.081 mm
Twisted wire (AWG 30 [cross-section: 0.051 mm
] to 12 [cross-section: 3.309 mm2]) or
2
] to 12 [cross-section: 3.309 mm2])
Stripping length: 9 to 10 mm (SRZP-01), 7 to 8 mm (SRZP-02)
* Cables within the given ranges can be connected.
If a cable is not connected to the CT, select a cable within these ranges.
• Isolation between Power supply, Communication and CT inputs
Isolation between the Z-CT module terminals is as follows:
: Isolated
: Not isolated
4. WIRING
Power supply
CT inputs (1 to 6CH)
CT inputs (7 to 12CH)
Communication
IMS01T21-E2
4-3
4. WIRING
4.2 Connecting Precautions
To prevent electric shock or instrument failure, turn off the power before
connecting or disconnecting the instrument and peripheral equipment.
• Connect connectors correctly in the right position. If it is forcibly pushed in with pins in the wrong
positions, the pins may be bent resulting in instrument failure.
• When connecting or disconnecting the connectors, do not force it too far to right and left or up and down,
but move it on the straight. Otherwise, the connector pins may be bent, causing instrument failure.
• When disconnecting a connector, hold it by the connector itself. Disconnecting connectors by yanking on
their cables can cause breakdowns.
WARNING
!
• To prevent malfunction, never touch the contact section of a connector with bare hands or with hands
soiled with oil or the like.
• To prevent damage to cables, do not bend cables over with excessive force.
4-4 IMS01T21-E2
4.3 Terminal Configuration
4.3.1 CT input terminals
Terminal type module
Current transformer (CT)
input [CT7 to CT12]
CT9
COM
CT8
COM
CT7
21
22
23
24
25
Current transformer (CT)
input [CT1 to CT6]
11
12
13
14
15
4. WIRING
CT1
COM
CT2
COM
CT3
CT12
COM
CT11
COM
CT10
26
27
28
29
30
COM: Common
Connecter type module
Current transformer (CT)
input [CT7 to CT12]
CN3
Pin No. Description
1 CT9
2 COM
3 CT8
4 COM
5 CT7
CN4
Pin No. Description
1 CT12
2 COM
3 CT11
4 COM
5 CT10
COM: Common
16
17
18
19
20
CT4
COM
CT5
COM
CT6
Current transformer (CT)
input [CT1 to CT6]
CN1
Pin No. Description
5 CT1
4 COM
3 CT2
2 COM
1 CT3
CN2
Pin No. Description
5 CT4
4 COM
3 CT5
2 COM
1 CT6
IMS01T21-E2 4-5
4. WIRING
Connection example of CT (Terminal type module)
Current transformer (CT)
input [CT7 to CT12]
CT9 (CH9)
CT8 (CH8)
CT7 (CH7)
CT12 (CH12)
CT11 (CH11)
CT10 (CH10)
Current transformer (CT)
input [CT1 to CT6]
CT1 (CH1)
CT2 (CH2)
CT3 (CH3)
CT4 (CH4)
CT5 (CH5)
CT6 (CH6)
When use the connector type module
If the CT is to be connected to a connector, cut off the solderless terminal of the CT, strip off the
indicated length of the jacket and connect to the connector.
Stripping length
9 to 10 mm
Stripping length
7 to 8 mm
Connecter (SRZP-01)
Connecter (SRZP-02)
4-6
IMS01T21-E2
4.3.2 Power supply terminals and communication terminals
4. WIRING
2 1
3 4 5
Power supply terminals
Description
1
2
24 V DC (+)
24 V DC (−)
Communication terminals (RS-485)
Terminal No.
3
4
5
Description
T/R (A)
T/R (B)
SG
Connecting to the base terminals
As an example, the method of connecting to the power terminals (terminal numbers 1 and 2) is shown
below.
1. Remove the module mainframe to which the power wiring will be connected.
Remove the
mainframe.
Module mainframe
2. Attach the solderless terminals to the power terminals with a Phillips head screwdriver.
(Base)
2 1
3 4 5
Power supply
terminals
1 2
DC
+
24 V
−
Solderless terminals
(＋)
12
(−)
!
Prior to conducting the wiring, always turn
OFF the power.
3. Return the module mainframe to the base. This completes the wiring work.
Return the module mainframe to the base.
Connections to the communication terminals (terminal numbers 3 to 5) are made in the same
way.
IMS01T21-E2
4-7
4. WIRING
(
)
4.4 Connection to Host Computer
To prevent electric shock or instrument failure, turn off the power before
connecting or disconnecting the instrument and peripheral equipment.
WARNING
!
Configurations that can be connected to a host computer
Examples of configurations of SRZ units that can be connected to a host computer are shown below.
“SRZ unit” refers to a unit consisting of only Z-CT modules, or a unit in which Z-CT modules
are connected to several other function modules (Z-TIO module, Z-DIO module).
When two or more Z-CT module are connected
Module address
(slave address)
32
33 4734
Host
computer
(master)
RS-485
RKC communication
Internal communication line (RS-485)
Up to 16 Z-CT modules can be connected.
For the Z-CT module address, see 5.1 Module Address Setting (P. 5-2).
When two or more Z-CT module are connected to Z-TIO modules
Module address
(slave address)
0 1
Host
computer
(master)
RS-485
RKC communication
Up to 16 Z-CT modules can be connected.
The maximum number of SRZ modules (including other function modules) on the same
communication line is 31.
Function modules (Z-TIO, Z-DIO and Z-CT modules) connected inside the same unit can be
placed in any position.
For the procedure for connecting modules, see 3. MOUNTING (P. 3-1).
For the module address settings, see 5. SETTINGS BEFORE OPERATION (P. 5-1).
SRZ unit
Z-CT modules
Power supply (24 V DC)
Z-TIO modules Z-CT modules
Power supply (24 V DC)
slave
Termination resistor
SRZ unit (slave)
16 4632 33
Internal communication line (RS-485)
Termination resistor
4-8 IMS01T21-E2
When two or more SRZ units are connected
Module address
(slave address)
0
computer
Host
(master)
RS-485
RKC communication
Module address
(slave address)
6
RS-485
RKC communication
Module address
(slave address)
RS-485
RKC communication
Regardless of the number of units, a maximum of 16 SRZ Z-TIO modules, a maximum of 16
SRZ Z-DIO modules and a maximum of 16 SRZ Z-CT modules can be connected respectively.
However, the maximum number of SRZ modules that can be connected overall, including other
function modules (Z-TIO, Z-DIO modules), is 31.
SRZ unit (slave)
1 2 3 4 5
Z-TIO modules Z-CT modules
Internal communication line
(RS-485)
Power supply (24 V DC)
SRZ unit (slave)
7 8 9 10 11
Z-TIO modules Z-CT modules
Internal communication line
(RS-485)
Power supply (24 V DC)
SRZ unit (slave)
12 13 14
Z-TIO modules
Internal communication line
(RS-485)
Termination resistor
Power supply (24 V DC)
32 33
34 35
15 36
4. WIRING
37
Z-CT modules
IMS01T21-E2
Function modules (Z-TIO, Z-DIO and Z-CT modules) connected inside the same unit can be
placed in any position.
4-9
4. WIRING
Terminal number and signal details
(ベース部)
(Base)
3 4 5
3 4 5
Terminal No. Signal name Symbol
3 Send data/Receive data T/R (B)
4 Send data/Receive data T/R (A)
5 Signal ground SG
Wiring figure
Connection to the RS-485 port of the host computer (master)
Up to 16 Z-CT modules can be connected.
The maximum number of SRZ modules (including other function modules) on the same communication line is 31.
(+)
(−)
(+)
(−)
SRZ unit
Z-CT module
(Slave)
T/R (A)
T/R (B)
SG
Z-CT module
(Slave)
T/R (A)
T/R (B)
SG
Paired wire
RS-485
3
4
5
Shielded twisted
Connected by
pair wire
the internal
communication line
3
4
5
R
R: Termination resistor (Example: 120 Ω 1/2 W)
Host computer (Master)
T/R (A)
T/R (B)
R
SG
The cable must be provided by the customer.
(−)
(+)
4-10
For installation method of termination resistor of the SRZ side, see
Termination Resistor (P. 4-13).
4.5 Installation of
IMS01T21-E2
Connection to the RS-232C port of the host computer (master)
A RS-232C/RS-485 converter is required.
(−)
SRZ unit
Z-CT module
(Slave)
T/R (A) 3
Paired wire
RS-485
4. WIRING
Host computer (Master)
(+)
(−)
(+)
Up to 16 Z-CT modules can be connected.
The maximum number of SRZ modules (including other function modules) on the same communication line is 31.
T/R (B)
T/R (A)
T/R (B)
4
SG
5
Z-CT module
(Slave)
3
4
SG
5
T/R (A)
Shielded twisted
pair wire
Connected by
the internal
communication line
R
R: Termination resistor (Example: 120 Ω 1/2 W)
T/R (B)
R
SG
RS-232C/RS-485
converter
RS-232C
When the host computer (master) uses Windows95/98/Me/NT/2000/XP, use a
RS-232C/RS-485 converter with an automatic send/receive transfer function.
Recommended RS-232C/RS-485 converter:
CD485, CD485/Vmanufactured by Data Link, Inc. or equivalent
IMS01T21-E2
The cable must be provided by the customer.
For installation method of termination resistor of the SRZ side, see
Termination Resistor (P. 4-13).
4.5 Installation of
4-11
4. WIRING
Connection to the USB of the host computer (master)
When the host computer (OS: Windows 98SE/2000/XP) is corresponding to the USB connector, our
communication converter COM-K (sold separately) can be used.
(−)
(+)
(−)
(+)
Up to 16 Z-CT modules can be connected.
The maximum number of SRZ modules (including other function modules) on the same communication line is 31.
SRZ unit
Z-CT module
(Slave)
T/R (A)
T/R (B)
SG
Z-CT module
(Slave)
T/R (A)
T/R (B)
SG
RS-485
3
4
5
Shielded twisted
Connected by
the internal
communication line
3
4
5
R
R: Termination resistor
(Example: 120 Ω 1/2 W)
pair wire
Host computer (Master)
Paired wire
Connect to USB port of
a personal computer
1
SG
T/R (A)
2
T/R(B)
3
4
5
Unused
Connected to
USB connector
USB communication
converter COM-K *
* The termination resistor is built in
to the COM-K.
USB cable
(COM-K
accessory)
For the COM-K, see
COM-K Instruction Manual (IMR01Z01-E).
The cable must be provided by the customer.
For installation method of termination resistor of the SRZ side, see
4.5 Installation of
Termination Resistor (P. 4-13).
4-12
IMS01T21-E2
4. WIRING
r
4.5 Installation of Termination Resistor
When connecting termination resistors to each end of the RS-485 communication line, follow the procedure
below to connect the resistor to the SRZ end.
For the termination resistor on the host computer side, connect it so as to satisfy the host
computer used.
Mounting position
Connect a termination resistor between the communication terminals (No.3 and 4) of the module at the end
of the communication line from the host computer.
Termination resistor
(Example: 120 Ω 1/2 W)
T/R(A) T/R(B)
When two or more Z-CT module are connected
SRZ unit (slave)
Host
computer
(master)
RS-485
Z-CT module
Internal communication line
(RS-485)
When two or more Z-TIO module are connected to Z-CT module
Z-TIO module
Host
computer
(master)
RS-485
(Base)
34 5
Recommended tightening torque:
0.4 N･m (4 kgf･cm)
SG
To host computer
Connect the termination
resistor to this module.
Termination resisto
Connect the termination
resistor to this module.
SRZ unit (slave)
Z-CT module
Internal communication line (RS-485)
Termination resistor
IMS01T21-E2 4-13
4. WIRING
When two or more SRZ units are connected
Host
computer
(master)
RS-485
RS-485
RS-485
SRZ unit (Slave)
Z-TIO module Z-CT module
Internal communication line (RS-485)
SRZ unit (Slave)
Z-TIO module Z-CT module
Internal communication line (RS-485)
SRZ unit (Slave)
Z-TIO module
Internal communication line
(RS-485)
Termination resistor
Z-CT module
Connect the termination
resistor to this module.
4-14
IMS01T21-E2
4. WIRING
4.6 Connections for Loader Communication
Z-CT module is equipped standard with a loader communication connector.
The module loader communication connector, our COM-K USB communication converter (sold separately)
and a personal computer can be connected with the appropriate cables, and our WinUCI
2
communication
tool can be installed on the computer, to enable data management monitoring and settings from the
computer.
The only data that can be communicated by loader communication is data of a module that is connected by
a loader communication cable. (Data of other joined modules cannot be communicated.)
1
A loader communication cable (option) is required for the connection to the loader communication connector on the
module. USB communication converter COM-K-1 (with Loader communication cable [cable length: 1 m])
2
Only available as a download from our web site. (To be made publicly available soon)
1
,
USB cable
(COM-K accessory)
Connect to USB
port of a personal
computer
Communication tool WinUCI
Software operation environment:
Windows 98SE/2000/XP
XGA (1024 × 768) display or greater,
Font size corresponds to “small font
(Windows 98SE/2000 only)”
Communication port of host computer
USB port: Based on USB Ver. 2.0
Communication settings on the computer
(Values other than the communication port are fixed.)
Communication speed: 38400 bps
Start bit: 1
: 8
Data bit
Parity bit: Without
: 1
Stop bit
Communication port: 0 to 255
Connect to USB
connecter
The Loader port is only for parameter setup.
The loader communication corresponds to the RKC communication protocol “Based on ANSI
X3.28-1976 subcategory 2.5, B1.”
For the COM-K, see the
COM-K Instruction Manual (IMR01Z01-E).
Loader communication
cable (W-BV-01)
[Option]
USB communication
converter COM-K
Connect to loader communication
connector of the module
Connect to loader
communication
connecter
The module address for loader
communication is fixed at “0.”
The setting of the address setting switch
is disregarded.
IMS01T21-E2 4-15
MEMO
このページは、偶数ページで構成されている場合は不要。
4-16 IMS01T21-E2
SETTINGS
BEFORE
OPERATION
5.1 Module Address Setting ...................................................................5-2
5.2 Protocol Selections and Communication Speed Setting...................5-3
5.3 Operating Precautions......................................................................5-4
IMS01T21-E2 5-1
5. SETTINGS BEFORE OPERATION
5.1 Module Address Setting
Set communication setting before mounting and wiring of the Z-CT module.
To prevent electric shock or instrument failure, always turn off the power
before setting the switch.
To prevent electric shock or instrument failure, never touch any section other
than those instructed in this manual.
CAUTION
WARNING
!
Do not separate the module mainframe from the base with the power turned on. If so,
instrument failure may result.
Address setting switch
Set an address for the module using a small blade screwdriver.
When using two or more modules, set the desired address to each module.
To avoid problems or malfunction, do not duplicate an address on the same communication
line.
Module address number of each module:
Z-CT module 32 to 47: Decimal
The value obtained by adding “32” to the
set address corresponds to the address
used for the actual program.
For details of Z-TIO-A/B and Z-DIO modules, see SRZ Instruction Manual (IMS01T04-E).
The address setting method of Z-TIO-C/D and Z-TIO-E/F modules are the same as the setting
method of the Z-TIO-A/B module.
RKC communication Modbus
Address setting switch
Setting range: 0 to F [0 to 15: Decimal]
Factory set value: 0
33 to 48: Decimal
The value obtained by adding “33” to the
set address corresponds to the address
used for the actual program.
5-2 IMS01T21-E2
5. SETTINGS BEFORE OPERATION
5.2 Protocol Selections and Communication Speed Setting
Use the DIP switch on the right side of module to select communication speed, data bit, configuration and
protocol. The data changes become valid when the power is turned on again.
When two or more Z-CT modules are connected on the same communication line, the DIP
switch settings (switch 1 to 8) of all modules must be the same.
Otherwise the module may fail or malfunction.
The DIP switch settings (switches 1 to 8) of all modules must also be the same when a Z-TIO
or Z-DIO module is connected.
Module
DIP switch
1234567
ON
mainframe
Right side view
8
ON OFF
(The above figure is for the terminal type. However, the switch positions are the same for the connector type.)
1 2 Communication speed
OFF OFF 4800 bps
ON OFF 9600 bps
OFF ON 19200 bps
ON ON 38400 bps
Factory set value: 19200 bps
3 4 5 Data bit configuration
OFF OFF OFF Data 7-bit, without parity, Stop 1-bit *
OFF ON OFF Data 7-bit, Even parity, Stop 1-bit *
ON ON OFF Data 7-bit, Odd parity, Stop 1-bit *
OFF OFF ON Data 8-bit, without parity, Stop 1-bit
OFF ON ON Data 8-bit, Even parity, Stop 1-bit
ON ON ON Data 8-bit, Odd parity, Stop 1-bit
ON OFF OFF
ON OFF ON
Factory set value: Data 8-bit, without parity, Stop 1-bit
* When the Modbus communication protocol is selected, this setting becomes invalid.
Don’t set this one
Setting range
of Modbus
Setting range of
RKC communication
6 Protocol
OFF RKC communication
ON Modbus
Factory set value: RKC communication
Switch No. 7 and 8 must be always OFF. Do not set to ON.
IMS01T21-E2 5-3
5. SETTINGS BEFORE OPERATION
5.3 Operating Precautions
Power ON
When a Z-CT module is used by itself
The Z-CT module does not have RUN/STOP transfer data, and thus when the power is turned on, it starts
capturing the current values. When the power is turned on, the FAIL/RUN indication lamp lights green.
When a Z-CT module is connected to other functional modules (Z-TIO module)
When the power of the SRZ unit is turned on, it starts up with the operation mode set to “Control” and
RUN/STOP transfer set to STOP (control is stopped). (The FAIL/RUN indication lamp lights green)
When the power of the Z-CT module is turned on, it starts capturing in the current value.
When the SRZ unit is switched from STOP to RUN, operation begins. [Factory set value: STOP]
When switched to RUN, the Z-CT module starts heater break alarm (HBA) and heater overcurrent alarm
operation. The Z-CT module also starts monitoring the state of the operation mode of the Z-TIO module.
The heater break alarm (HBA) function and heater overcurrent alarm function do not operate for channels
for which the operation mode of the Z-TIO module is set to “0: Unused” or “1: Monitor.”
Even if a heater break alarm (HBA) or heater overcurrent alarm occurs when the SRZ unit is set
to STOP (control stop), an alarm state will not occur.
For details of RUN/STOP transfer, see SRZ Instruction Manual (IMS01T04-E).
Confirm the automatic setting data
Before switching the SRZ unit to RUN, verify that the communication data required for automatic setting
of the heater break alarm (HBA) and heater overcurrent alarm have been set.
For details of each parameter, see 7. COMMUNICATION DATA DESCRIPTION (P. 7-1).
For the automatic setting, see 6.3 Automatic Setting Example (P. 6-12).
Execution of automatic setting
Before performing automatic setting of the heater break alarm (HBA) and heater overcurrent alarm, verify
that installation has been completed, all connections have been made, and the required communication data
have been set, so that the system is ready for operation.
Execute automatic setting when the load starts heating up.
For the procedure for starting automatic setting, see 6.3.4 Procedure for executing automatic
setting (P. 6-21).
5-4 IMS01T21-E2
HOST
COMMUNICATION
6.1 RKC Communication ........................................................................6-2
6.1.1 RKC communication protocol ...................................................................6-2
6.1.2 RKC communication data list.................................................................... 6-2
6.2 Modbus.............................................................................................6-5
6.2.1 Modbus communication protocol ..............................................................6-5
6.2.2 Data configuration.....................................................................................6-5
6.2.3 Caution for handling communication data................................................. 6-5
6.2.4 Modbus communication data list...............................................................6-6
6.3 Automatic Setting Example.............................................................6-12
6.3.1 Automatic setting procedure....................................................................6-13
6.3.2 Preparation of loader communication ......................................................6-14
6.3.3 Data settings before execution of automatic setting ................................6-15
6.3.4 Procedure for executing automatic setting ..............................................6-21
IMS01T21-E2 6-1
6. HOST COMMUNICATION
6.1 RKC Communication
6.1.1 RKC communication protocol
RKC communication uses the polling/selecting method to establish a data link. The basic procedure is
followed ANSI X3.28 subcategory 2.5, B1 basic mode data transmission control procedure (Fast selecting
is the selecting method used in SRZ).
For an explanation of RKC communication protocol, see the following sections of the SRZ Instruction
Manual (IMS01T04-E).
Chapter 6
• 6.1 Polling
• 6.2 Selecting
• 6.3 Communication Data Structure
SRZ Instruction Manual (IMS01T04-E) can be downloaded from our website:
URL: http://www.rkcinst.com/english/manual_load.htm
For details of the “Processing times during data send/receive,” “RS-485 (2-wire system)
send/receive timing,” “Fail-safe,” see SRZ Instruction Manual (IMS01T04-E).
6.1.2 RKC communication data list
Reference to communication data list
No. Name
1 Model code ID 32 RO M Model code (character)
2 ROM version VR 8 RO M ROM version
(1) Name: Communication data name
(2) Identifier: Communication identifier of RKC communication
(3) Digits: The number of communication data digits in RKC communication
(4) Attribute: A method of how communication data items are read or written when viewed from
the host computer is described.
(5) Structure: C: Data for each channel M: Data for each module
(6) Data range: Read or Write range of communication data
(7) Factory set value: Factory set value of communication data
(1) (2) (3) (4) (5) (6) (7)
Iden-
tifier
RO: Read only data
Read and Write data
R/W:
Host computer
Host computer
For the data structure, see SRZ Instruction Manual (IMS01T04-E).
Digits
Attribute
Struc-
ture
Data direction
Data direction
Data range
Z-CT module
Z-CT module
Factory
set value
ASCII code data (Example: 7 digits)
Most significant digit
…………
Least significant digit
To prevent operation errors, some of the communication data can be locked to prevent changes to the
settings.
This is performed using communication data “set lock”.
Data that can be locked: No. 20 to 30 (Communication data list number.)
6-2 IMS01T21-E2
6. HOST COMMUNICATION
Communication data list
No. Name
1 Model code ID 32 RO M Model code (character)
2 ROM version VR 8 RO M ROM version
3
Current transformer (CT)
input value monitor
4
Load factor conversion
CT monitor
5
Heater break alarm (HBA)
state monitor
6
Heater overcurrent alarm
state monitor
7 Error code ER 7 RO M
8
Integrated operating time
monitor
9
Backup memory state
monitor
10
Automatic setting state
1
monitor
11
Heater break/Heater
overcurrent alarm
automatic setting selection
12 Automatic setting transfer 2 BU 1 R/W C
13
Heater break alarm (HBA)
set value
14
Heater break alarm (HBA)
selection
15
Heater overcurrent alarm
set value
16
Heater overcurrent alarm
selection
17
Heater break alarm (HBA)
interlock release
18
Heater overcurrent alarm
interlock release
1
This is linked to the solid lighting or blinking state of the automatic setting state indication lamp (SET).
2
Automatic setting is only possible for channels that have been set to other than “0: Automatic setting is disabled” in heater break/heater
overcurrent alarm automatic setting selection.
3
When automatic setting ends normally, this reverts to “0: Normal state.”
4
After the interlock is released, this automatically returns to “0.”
Iden-
tifier
M4 7 RO C
M5 7 RO C 0.0 to 100.0 A
AF 1 RO C
AG 1 RO C
UT 7 RO M 0 to 19999 hours
EM 1 RO M
CJ 1 RO M
BT 1 R/W C
A8 7 R/W C
BZ 1 R/W C
A6 7 R/W C
BO 1 R/W C
CX 1 R/W C
CY 1 R/W C
Digits
Attribute
Struc-
ture
CTL-6-P-Z: 0.0 to 10.0 A
CTL-6-P-N: 0.0 to 30.0 A
CTL-12-S56-10L-N: 0.0 to 100.0 A
0: Normal
1: Break
2: Melting
0: Normal
1: Heater overcurrent
1: Adjustment data error
2: Data back-up error
4: A/D conversion error
0: The content of the backup memory does not
coincide with that of the RAM.
1: The content of the backup memory coincides with
that of the RAM.
0: Normal state
1: Automatic setting execution
2: Automatic setting failure
0: Automatic setting is disabled.
(Alarm set value cannot be automatically set by the
push button and communication.)
1: Automatic setting for heater break alarm is enabled.
2: Automatic setting for heater overcurrent alarm set
value is enabled.
3: Automatic setting for heater break alarm (HBA)
and heater overcurrent alarm set values are enabled.
0: Normal state
1: Automatic setting execution
2: Automatic setting failure (RO)
0.0 to 100.0 A
0.0: Heater break alarm function (HBA) OFF
(HBA function OFF: The current transformer (CT)
input value monitoring is available.)
0: Heater break alarm (HBA) unused
1: Heater break alarm (HBA)
2: Heater break alarm (HBA)
(With alarm interlock function)
0.0 to 105.0 A
0.0: Heater overcurrent alarm function OFF
0: Heater overcurrent alarm unused
1: Heater overcurrent alarm
2: Heater overcurrent alarm
(With alarm interlock function)
0: Normal state
1: Interlock release execution
0: Normal state
1: Interlock release execution
Data range
3
4
4
Factory
set value
1
0
0.0
1
0.0
1
0
0
Continued on the next page.
IMS01T21-E2
6-3
6. HOST COMMUNICATION
Continued from the previous page.
No. Name
19 Set lock LK 1 R/W M 0: Unlock
20 CT type 1 BV 1 R/W
21 CT ratio 3
(CT number of winds)
22 Number of heater break
alarm (HBA) delay times
23 Automatic setting factor
for heater break alarm
(HBA)
24 Automatic setting factor
for heater overcurrent
alarm
25 Determination current
value for automatic setting
26 Automatic setting time BQ 7 R/W 2C 10 to 250 seconds 60
27 Module address
assignments for CT input
28 Module channel
assignments for CT input
29 Load factor conversion
method
30 Interval time ZX 7 R/W 2C 0 to 250 ms 10
1
When using a non-specified CT, set to “1: CTL-12-S56-10L-N (0.0 to 100.0 A).”
2
When the set lock is set to “0: Unlock,” writing data is possible.
3
When using a non-specified CT, set the number of winds of the CT.
4
For monitoring using “0: Mean conversion” or “1: Root mean squared value conversion,” the following settings are required:
• Module address assignments for CT input must be set.
• Module channel assignments for CT input must be set.
• The heater break alarm (HBA) value must be set to other than “0.0.”
Iden-
tifier
XT 7 R/W 2C 0 to 9999 CTL-6-P-N,
DI 7 R/W 2C 0 to 255 times 5
BW 7 R/W
B9 7 R/W
BP 7 R/W 2C 0.0 to 100.0 A 1.0
BX 7 R/W 2C 0 to 99 0
BY 7 R/W 2C 1 to 99 1
IC 1 R/W 2M 0: Mean conversion
Digits
Attribute
Struc-
ture
2
2
2
1: Lock
C 0: CTL-6-P-N (0.0 to 30.0 A)
1: CTL-12-S56-10L-N (0.0 to 100.0 A)
2: CTL-6-P-Z (0.0 to 10.0 A)
C 1 to 100 % 75
C 100 to 1000 % 200
1: Root mean squared value conversion
Data range
Depends on
model code.
When not
specifying: 0
CTL-6-P-Z:
800
CTL-12-S5610L-N: 1000
Factory
set value
0
0
6-4
IMS01T21-E2
6. HOST COMMUNICATION
6.2 Modbus
6.2.1 Modbus communication protocol
The master controls communication between master and slave.
A typical message consists of a request (query message) sent from the master followed by an answer
(response message) from the slave (Z-CT module).
When master begins data transmission, a set of data is sent to the slave in a fixed sequence.
When it is received, the slave decodes it, takes the necessary action, and returns data to the master.
For an explanation of Modbus communication protocol, see the following sections of the SRZ Instruction
Manual (IMS01T04-E).
Chapter 7
• 7.1 Communication protocol
• 7.2 Message Format
SRZ instruction manual (IMS01T04-E) can be downloaded from our website:
URL: http://www.rkcinst.com/english/manual_load.htm
For details of the “Processing times during data send/receive,” “RS-485 (2-wire system)
send/receive timing,” “Fail-safe,” see SRZ Instruction Manual (IMS01T04-E).
6.2.2 Data configuration
The numeric range of data used in Modbus protocol is 0000H to FFFFH. Only the set value within the
setting range is effective.
FFFFH represents −1.
6.2.3 Caution for handling communication data
• The Modbus protocol does not recognize data with decimal points during communication.
Example: When heater break alarm (HBA) set value is 20.0 A, 20.0 is processed as 200,
• If data (holding register) exceeding the accessible address range is accessed, an error response message is
returned.
• Read data of unused item is a default value.
• Any attempt to write to an unused item is not processed as an error. Data can not be written into an
unused item.
• If data range or address error occurs during data writing, it is not processed as an error. Except the data
that error occurred, normal data is written in data register. Therefore, it is necessary to confirm data after
the end of setting data.
• Some of the communication data becomes RO (read only) when set lock is used.
If you attempt to write data to RO data, an error will not occur; however, the data will not be written.
200 = 00C8H
Heater break alarm (HBA) set value High 00H
Low C8H
For details of set lock, see 6.2.4 Modbus communication data list (P. 6-6).
• Send the next command message at time intervals of 24 bits after the master receives the response
message.
IMS01T21-E2 6-5
6. HOST COMMUNICATION
6.2.4 Modbus communication data list
Reference to communication data list
(1) (2) (3) (4) (5) (6) (7)
Chan-
No. Name
1 Current transformer (CT)
input value monitor
2 Load factor conversion
CT monitor
(1) Name: Communication data name
(2) Channel: Channel numbers of Z-CT module
nel
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
Resister address
HEX DEC
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
000A
000B
000C
000D
000E
000F
Attribute
0
RO C CTL-6-P-Z: 0.0 to 10.0 A
1
2
3
4
5
6
7
8
9
10
11
12
RO C 0.0 to 100.0 A
13
14
15
Struc-
ture
CTL-6-P-N: 0.0 to 30.0 A
CTL-12-S56-10L-N: 0.0 to 100.0 A
Data range
Factory
set value
(3) Register address:
Register addresses of each channel (HEX: Hexadecimal DEC: Decimal)
(4) Attribute: A method of how communication data items are read or written when viewed from the
host computer is described
RO: Read only data
Host computer
Data direction
Z-CT module
R/W: Read and write data
Host computer
Data direction
Z-CT module
(5) Structure: C: Data for each channel M: Data for each module
(6) Data range: Read or write range of communication data
16-bit data (bit image)
…………….……………………
b15
b0
(7) Factory set value: Factory set value of communication data
To prevent operation errors, some of the communication data can be locked to prevent changes to
the settings. This is performed using communication data “set lock.”
Data that can be locked: No. 21 to 31 (Communication data list number.)
6-6
IMS01T21-E2
Communication data list
No. Name
1 Current transformer (CT)
input value monitor
2 Load factor conversion
CT monitor
3 Heater break alarm (HBA)
state monitor
4 Heater overcurrent alarm
state monitor
5 Error code 0030 48 RO M
6 Integrated operating time
monitor
7 Backup memory state
monitor
8 Automatic setting state
monitor
*
* This is linked to the solid lighting or blinking state of the automatic setting state indication lamp (SET).
Chan-
Resister address
nel
HEX DEC
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
000A
000B
000C
000D
000E
000F
0010
0011
0012
0013
0014
0015
0016
0017
0018
0019
001A
001B
001C
001D
001E
001F
0020
0021
0022
0023
0024
0025
0026
0027
0028
0029
002A
002B
002C
002D
002E
002F
0031 49 RO M 0 to 19999 hours
0032 50 RO M 0: The content of the backup memory does
0033 51 RO M
Attri-
Struc-
bute
ture
RO C CTL-6-P-Z: 0.0 to 10.0 A
0
1
2
3
4
5
6
7
8
9
10
11
RO C 0.0 to 100.0 A
12
13
14
15
16
17
18
19
20
21
22
23
RO C
24
25
26
27
28
29
30
31
32
33
34
35
RO C 0: Normal
36
37
38
39
40
41
42
43
44
45
46
47
CTL-6-P-N: 0.0 to 30.0 A
CTL-12-S56-10L-N: 0.0 to 100.0 A
0: Normal
1: Break
2: Melting
1: Heater overcurrent
b0: Adjustment data error
b1: Data back-up error
b2: A/D conversion error
b3 to b15: Unused
Data 0: OFF 1: ON
[Decimal number: 0 to 7]
not coincide with that of the RAM.
1: The content of the backup memory
coincides with that of the RAM.
0: Normal state
1: Automatic setting execution
2: Automatic setting failure
Data range
6. HOST COMMUNICATION
Factory
set value
Continued on the next page.
IMS01T21-E2
6-7
6. HOST COMMUNICATION
Continued from the previous page.
No. Name
Unused
9
10 Unused 0035
11 Heater break/Heater
overcurrent alarm
automatic setting selection
12 Automatic setting transfer * CH1
13 Heater break alarm (HBA)
set value
14 Heater break alarm (HBA)
selection
* Automatic setting is only possible for channels that have been set to other than “0: Automatic setting is disabled” in heater break/heater
overcurrent alarm automatic setting selection.
Chan-
Resister address
nel
HEX DEC
0034 52 Do not use this register address as it is used
･
･
･
0093
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
0094
0095
0096
0097
0098
0099
009A
009B
009C
009D
009E
009F
00A0
00A1
00A2
00A3
00A4
00A5
00A6
00A7
00A8
00A9
00AA
00AB
00AC
00AD
00AE
00AF
00B0
00B1
00B2
00B3
00B4
00B5
00B6
00B7
00B8
00B9
00BA
00BB
00BC
00BD
00BE
00BF
00C0
00C1
00C2
00C3
Attri-
Struc-
bute
ture
for the internal processing.
53
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
･
･
･
R/W C 0: Automatic setting is disabled.
R/W C 0: Normal state
(Alarm set value cannot be automatically
set by the push button and communication.)
1: Automatic setting for heater break alarm is
enabled.
2: Automatic setting for heater overcurrent
alarm set value is enabled.
3: Automatic setting for heater break alarm
(HBA) and heater overcurrent alarm set
values are enabled.
1: Automatic setting execution
When automatic setting ends normally,
this reverts to “0: Normal state.”
2: Automatic setting failure (RO)
R/W C 0.0 to 100.0 A
0.0: Heater break alarm function (HBA) OFF
(HBA function OFF: The current
transformer (CT) input value monitoring
is available.)
R/W C 0: Heater break alarm (HBA) unused
1: Heater break alarm (HBA)
2: Heater break alarm (HBA)
(With alarm interlock function)
Data range
Factory
set value
1
0
0.0
1
Continued on the next page.
6-8
IMS01T21-E2
6. HOST COMMUNICATION
Continued from the previous page.
nel
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
Resister address
HEX DEC
00C4
00C5
00C6
00C7
00C8
00C9
00CA
00CB
00CC
00CD
00CE
00CF
00D0
00D1
00D2
00D3
00D4
00D5
00D6
00D7
00D8
00D9
00DA
00DB
00DC
00DD
00DE
00DF
00E0
00E1
00E2
00E3
00E4
00E5
00E6
00E7
00E8
00E9
00EA
00EB
00EC
00ED
00EE
00EF
00F0
00F1
00F2
00F3
･
･
･
0177
0179
017A
017B
017C
017D
017E
017F
0180
0181
0182
0183
0184
No. Name
15 Heater overcurrent alarm
set value
16 Heater overcurrent alarm
selection
17 Heater break alarm (HBA)
interlock release
18 Heater overcurrent alarm
interlock release
19 Unused 00F4
20 Set lock 0178 376 R/W M 0: Unlock 1: Lock 0
21 CT type 1 CH1
1
When using a non-specified CT, set to “1: CTL-12-S56-10L-N (0.0 to 100.0 A).”
2
When the set lock is set to “0: Unlock,” writing data is possible.
Chan-
Attri-
Struc-
bute
ture
R/W C 0.0 to 105.0 A
196
197
198
199
200
201
202
203
204
205
206
207
R/W C 0: Heater overcurrent alarm unused
208
209
210
211
212
213
214
215
216
217
218
219
R/W C 0: Normal state
220
221
222
223
224
225
226
227
228
229
230
231
R/W C 0: Normal state
232
233
234
235
236
237
238
239
240
241
242
243
244
375
377
378
379
380
381
382
383
384
385
386
387
388
･
･
･
2
R/W
0.0: Heater overcurrent alarm function OFF
1: Heater overcurrent alarm
2: Heater overcurrent alarm
(With alarm interlock function)
1: Interlock release execution
After the interlock is released, this
automatically returns to “0.”
1: Interlock release execution
After the interlock is released, this
automatically returns to “0.”
C 0: CTL-6-P-N (0.0 to 30.0 A)
1: CTL-12-S56-10L-N (0.0 to 100.0 A)
2: CTL-6-P-Z (0.0 to 10.0 A)
Data range
Continued on the next page.
Factory
set value
0.0
1
0
0
Depends on
model code.
When not
specifying: 0
IMS01T21-E2
6-9
6. HOST COMMUNICATION
Continued from the previous page.
nel
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
Resister address
HEX DEC
0185
0186
0187
0188
0189
018A
018B
018C
018D
018E
018F
0190
0191
0192
0193
0194
0195
0196
0197
0198
0199
019A
019B
019C
019D
019E
019F
01A0
01A1
01A2
01A3
01A4
01A5
01A6
01A7
01A8
01A9
01AA
01AB
01AC
01AD
01AE
01AF
01B0
01B1
01B2
01B3
01B4
01B5
01B6
01B7
01B8
01B9
01BA
01BB
01BC
01BD
01BE
01BF
01C0
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
No. Name
22 CT ratio 1
(CT number of winds)
23 Number of heater break
alarm (HBA) delay times
24 Automatic setting factor
for heater break alarm
(HBA)
25 Automatic setting factor
for heater overcurrent
alarm
26 Determination current
value for automatic setting
1
When using a non-specified CT, set the number of winds of the CT.
2
When the set lock is set to “0: Unlock,” writing data is possible.
Chan-
Attri-
bute
R/W
R/W
R/W
R/W
R/W
Struc-
ture
2
C 0 to 9999
2
C 0 to 255 times 5
2
C 1 to 100 % 75
2
C 100 to 1000 % 200
2
C 0.0 to 100.0 A 1.0
Data range
Continued on the next page.
Factory
set value
CTL-6-P-N,
CTL-6-P-Z:
800
CTL-12-
S56-10L-N:
1000
6-10
IMS01T21-E2
6. HOST COMMUNICATION
Continued from the previous page.
nel
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
Resister address
HEX DEC
01C1
01C2
01C3
01C4
01C5
01C6
01C7
01C8
01C9
01CA
01CB
01CC
01CD
01CE
01CF
01D0
01D1
01D2
01D3
01D4
01D5
01D6
01D7
01D8
01D9
01DA
01DB
01DC
01DD
01DE
01DF
01E0
01E1
01E2
01E3
01E4
01E5
01E6
01E7
01E8
01E9
01EA
01EB
01EC
01ED
01EE
01EF
01F0
No. Name
27 Automatic setting time CH1
28 Module address
assignments for CT input
29 Module channel
assignments for CT input
30 Load factor conversion
31 Interval time 01F1 497 R/W 1M 0 to 250 ms 10
1
When the set lock is set to “0: Unlock,” writing data is possible.
2
For monitoring using “0: Mean conversion” or “1: Root mean squared value conversion,” the following settings are required:
• Module address assignments for CT input must be set.
• Module channel assignments for CT input must be set.
• The heater break alarm (HBA) value must be set to other than “0.0.”
method
2
Chan-
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
Attri-
bute
R/W
R/W
R/W
R/W
Struc-
ture
1
C
10 to 250 seconds
1
C
0 to 99
1
C 1 to 99 1
1
C 0: Mean conversion
1: Root mean squared value conversion
Data range
Factory
set value
60
0
0
IMS01T21-E2
6-11
6. HOST COMMUNICATION
r
6.3 Automatic Setting Example
The example of automatic setting of the heater break alarm (HBA) and heater overcurrent alarm when a
Z-TIO-B module is connected to a Z-CT module is explained below.
Before executing automatic setting, install and connect all devices and complete the communication
settings and initial settings of the Z-TIO-B module and the communication settings (address,
communication speed, and data bit configuration) of the Z-CT module, so that the system is ready for
operation.
System configuration
Personal computer
USB cable
(Attached to COM-K)
USB communication
converter COM-K
Loader communication
cable (W-BV-01) [option]
SRZ unit
The module address for loade
communication is fixed at “0.”
The setting of the address
Three-phase
heater
Module address of
Z-TIO-B modules
0 1
Z-TIO-B
module 1
Z-TIO-B module 2
setting switch is disregarded.
Z-CT-A
module
Use instruments
SRZ unit
Temperature control module Z-TIO-B (2 channel type: No CT input [option]): 2
Current transformer module Z-CT-A: 1
Communication converter
USB communication converter COM-K (RKC product): 1
Loader communication cable W-BV-01 [option]: 1
Personal computer: 1 Must be running Windows
95/98/Me/2000/XP.
Communication program
The customer must provide the communication program.
Condition
Control output of Z-TIO-B module: Time proportioning output (Relay contact output, Voltage pulse
output, Triac output or Open collector output)
CT input channel (CH1 to CH4): Used for detection of heater break and heater overcurrent in channel 1
and channel 2 of Z-TIO-B module 1 (address 0).
CT input channel (CH5 to CH8): Used for detection of heater break and heater overcurrent in channel 1
and channel 2 of Z-TIO-B module 2 (address 1).
6-12 IMS01T21-E2
6.3.1 Automatic setting procedure
Connect the communication converter, configure the communication settings
Preparation of loader
communication
Communication program start
Data settings required before
automatic setting is performed
Temperature rise start
Automatic setting start
Setting end
of the personal computer, and prepare the communication program.
Turn on the power of the heater.
Set the SRZ unit to RUN (start control).
Start the automatic setting of heater break alarm (HBA) and heater
overcurrent alarm.
6. HOST COMMUNICATION
See 6.3.2 Preparation of loader communication (P. 6-14).
To use the USB communication converter COM-K, the driver must be
installed on the computer.
See COM-K Instruction Manual (IMR01Z01-E).
See 6.3.3 Data settings before execution of automatic setting
(P. 6-15).
For the RUN/STOP transfer of SRZ unit, see SRZ Instruction
Manual (IMS01T04-E).
For the procedure for starting automatic setting,
see 6.3.4 Procedure for executing automatic setting (P. 6-21).
IMS01T21-E2 6-13
6. HOST COMMUNICATION
6.3.2 Preparation of loader communication
(1) Preparation of communication program
The customer must provide the communication program.
In this example, the communication program that our company developed is used.
(2) Loader communication setting
Set the communication port of the computer to the following values. There are no loader communication
settings on the Z-CT module side.
The module address of the Z-CT module is fixed at “0.” The setting of the address setting
switch of the Z-CT module is disregarded.
(3) Connection of loader communication
Communication speed * 38400 bps
Start bit * 1
Data bit * 8
Parity bit * Without parity
Stop bit * 1
* Above setting data is fixed.
Connect a SRZ unit to converter COM-K and personal computer by connection cable.
Personal computer
Connect to USB port
of personal computer.
USB cable (Attached to COM-K)
COM-K
Connect to USB connector
of COM-K.
Connect to loader
communication connecter
of COM-K.
Loader communication cable
(W-BV-01)
[option]
Connect to loader
communication
connector of
Z-CT module.
SRZ unit
Z-CT module
6-14
IMS01T21-E2
6. HOST COMMUNICATION
6.3.3 Data settings before execution of automatic setting
1. Turn on the power of the personal computer, and SRZ unit.
2. Start the communication program and display the communication screen of the host computer.
Screen example of communication program
Communication data name
Names that appear in the
manual are omitted because the
number of digits that can be
displayed is limited.
Page
CT input channel
3. Go to the setting screen.
Setting screen
Data setting column
IMS01T21-E2
6-15
6. HOST COMMUNICATION
4. Check and set the communication data below. Configure settings for the CT input channels to be used.
In this example, communication data for CT input channels 1 to 8 are set.
Set the data as explained below.
Check or set the data as
explained in “Table 1.”
Set the data as
explained in steps 5
through 9.
Table 1
Communication data
name
Details of setting data
Communication
data explanation
Set lock If the set data is locked, set to “0: Unlock.” P. 7-17
CT type Verify that the CT type to be used is set. In the
P. 7-18
example, CT (CTL-6-P-N) for no specification at
factory shipping is used, and thus “0” is set.
Using a non-specified CT
If a non-specified CT is used, set to “1.”
There are certain requirements for nonspecified CTs that can be used. See the
explanation of the communication data.
CT ratio Set the number of winds of the CT.
P. 7-19
The number of winds of the CT (CTL-6-P-N) is 800;
therefore, set to “800.”
Using a non-specified CT
If a non-specified CT is used, set the number of
winds of that CT.
HBA delay times
[Number of heater break
alarm (HBA) delay times] *
HBA set factor
[Automatic setting factor for
heater break alarm (HBA)] *
OCR set factor
[Automatic setting factor for
heater overcurrent alarm] *
* Names in brackets [ ] are names that appear in the manual.
Set the number of heater break alarm (HBA) delay
times.
In this example, “5 times (factory set value)” is set.
Set the automatic setting factor for heater break alarm
(HBA).
In this example, “75 % (factory set value)” is set.
Set the automatic setting factor for heater overcurrent
alarm.
In this example, “200 % (factory set value)” is set.
P. 7-20
P. 7-21
P. 7-22
Continued on the next page.
6-16
IMS01T21-E2
6. HOST COMMUNICATION
Continued from the previous page.
Table 1
Communication data
name
Determination
[Determination current value
for automatic setting] *
Details of setting data
Set the determination current value for automatic
setting.
In this example, “1.0 A (factory set value)” is set.
Communication
data explanation
If the current is less than 1.0 A during automatic
setting, the set value of each alarm is not calculated.
Auto set time
[Automatic setting time] *
Set the calculation time for performing automatic
setting. In this example, “60 seconds A (factory set
value)” is set. If calculation of the alarm set values
cannot be performed within 60 seconds, automatic
setting will fail.
* Names in brackets [ ] are names that appear in the manual.
5. Set the address of the module to be assigned to the CT input channel.
The address number “0” of Z-TIO-B module 1 is to be assigned to CT input channels 1 to 4, and thus
the data does not to be changed.
P. 7-23
P. 7-24
Module assigned to CT input
channels 1 to 4:
Z-TIO-B module 1 (address 0)
Module address assignments for CT input
6.
Set the address of the module to be assigned to the CT input channel 5 to 8.
The address number of Z-TIO-B module 2 is to be assigned to CT input channels 5 to 8. Set “1,” the
address of Z-TIO-B module 2.
Module assigned to CT input
channels 5 to 8:
Z-TIO-B module 2 (address 1)
Set the CT input channel 5, 6, 7
and 8 to “1.”
IMS01T21-E2
Module address assignments for CT input
6-17
6. HOST COMMUNICATION
7. Set the channel of the module to be assigned to the CT input channel.
CT input channels 1 and 2 will be assigned to channel 1 of Z-TIO-B module 1 (address 0), and thus the
data does not to be changed.
Channel 1 of Z-TIO-B module 1
Module address assignments for CT input
8. CT input channels 3 and 4 will be assigned to channel 2 of Z-TIO-B module 1 (address 0), and thus
these are set to “2.”
Channel 2 of Z-TIO-B module 1:
Set the CT input channel 3 and 4 to “2.”
9. Follow the same steps to set CT input channels 5 to 8.
Assign the channels to channel 1 and channel 2 of Z-TIO-B module 2 (address 1).
• CT input channel 5 and 6: Assigned to channel 1, thus no change is needed.
• CT input channel 7 and 8: Assigned to channel 2, thus set to “2.”
Channel 1 of Z-TIO-B module2
Channel 2 of Z-TIO-B module 2:
Set the CT input channel 7 and 8 to “2.”
6-18
IMS01T21-E2
6. HOST COMMUNICATION
10. Select the CT input channels for which automatic setting of the heater break alarm (HBA) and heater
overcurrent alarm will be executed.
Go to the heater break/heater overcurrent alarm automatic setting selection screen.
Heater break/Heater overcurrent alarm automatic setting selection
11. Select the CT input channel in heater break/heater overcurrent alarm automatic setting selection.
To perform automatic setting of the heater break alarm (HBA) set value and heater overcurrent alarm,
set CT input channels 1 to 8 to “3.”
Set to “3.”
Heater break/ Heater overcurrent alarm automatic setting selection
For details of heater break/heater overcurrent alarm automatic setting selection, see on page 7-9.
12. To prevent incorrect settings, disable CT input channels for which automatic setting will not be
performed. In this example, CT input channels 9 to 12 will not be used, and thus these are set to “0.”
Set to “0.”
IMS01T21-E2
6-19
6. HOST COMMUNICATION
13. Select the alarm state when a heater break alarm (HBA) occurs. Set this in heater break alarm (HBA)
selection. In the example, the factory set value “1” is used and thus no change is needed.
1: Heater break alarm (HBA)
Heater break alarm (HBA) selection
For details of heater break alarm (HBA) selection, see on page 7-12.
14. Select the alarm state when a heater overcurrent alarm occurs. Set this in heater overcurrent alarm
selection. In the example, the factory set value “1” is used and thus no change is needed.
1: Heater overcurrent alarm
Heater overcurrent alarm selection
For details of heater overcurrent alarm (HBA) selection, see on page 7-13.
This completes the data setting that is required before automatic setting is performed.
6-20
IMS01T21-E2
6. HOST COMMUNICATION
A
A
A
A
6.3.4 Procedure for executing automatic setting
Automatic setting is executed by push button or communication.
• When the alarm values are automatically set by push button, batch setting of the CT input channels is
possible.
(However, only CT input channels for which automatic setting is enabled can be set.)
• When the alarm values are automatically set via communication, each CT input channel can be
separately set.
(However, only CT input channels for which automatic setting is enabled can be set.)
Execution by push button
1. Turn on the power of the heater.
2. Switch the SRZ unit to RUN and start heater control.
For the RUN/STOP transfer of SRZ unit, see SRZ Instruction Manual (IMS01T04-E).
3. Immediately after switching to RUN, hold down the push button on the front of the Z-CT module for at
least 2 seconds. Automatic setting of the heater break alarm (HBA) set value and heater overcurrent
alarm starts. When automatic setting starts, the automatic setting state indication lamp (SET) lights up
and the automatic setting state monitor changes to “1: Automatic setting execution.”
utomatic setting state
indication lamp (SET)
Z-CT module
Push button
utomatic setting
state monitor
Changed to “1: Automatic
setting execution.”
Automatic setting is most successful if performed while auto tuning (AT) is being executed.
If the ON time of control output is 0.5 seconds or less, automatic setting is not possible.
During automatic setting, automatic setting can be stopped by holding down the push button
for at least two seconds.
The states of the automatic setting state indication lamp (SET) and automatic setting state
monitor are linked.
4. The automatic setting state indication lamp (SET) on the front of the Z-CT module will turn off when
automatic setting ends. In addition, the automatic setting state monitor returns to “0: Normal state.”
Z-CT module
green lamp is off
utomatic setting
state monitor
Changed to “0: Normal state.”
IMS01T21-E2 6-21
6. HOST COMMUNICATION
A
5. Verify that the heater break alarm (HBA) set value and heater overcurrent alarm are set.
Heater break alarm (HBA)
set value
Heater overcurrent alarm
set value
If the automatic setting is failed, automatic setting state indication lamp (SET) flashes.
In addition, the automatic setting state monitor returns to “2: Automatic setting failure.”
utomatic setting
state indication
lamp (SET)
Z-CT module
Automatic setting state monitor
Change to “2: Automatic setting failure.”
Release method of automatic setting failure state
Hold down the push button at least 2 seconds to start automatic setting again.
(Failure state)
Flashing
ON
Automatic setting
start
Hold down the push button at least 2 seconds during automatic setting to stop automatic
setting. The automatic setting state indication lamp (SET) will stop lighting (ON state) and
turn off, and the failure state will be cleared.
ON
Automatic setting
execution
OFF
(Normal state)
Note: The automatic setting state monitor changes to “0: Normal state.”
6-22
IMS01T21-E2
6. HOST COMMUNICATION
Execution via communication
1. Turn on the power of the heater.
2. Switch the SRZ unit to RUN and start heater control.
For the RUN/STOP transfer of SRZ unit, see SRZ Instruction Manual (IMS01T04-E).
3. Set automatic setting transfer to “1” for each CT input channel.
Automatic setting of the heater break alarm (HBA) set value and heater overcurrent alarm starts.
When automatic setting starts, the automatic setting state indication lamp (SET) lights up.
In addition, automatic setting state monitor is changed to “1: automatic setting execution.” (See P. 6-21)
Set to “1.”
Automatic setting transfer
4. Automatic setting transfer reverts to “0: Normal state” when automatic setting ends. When automatic
setting ends, the automatic setting state indication lamp (SET) turns off.
In addition, automatic setting state monitor is returned to “0: Normal state.”(See P. 6-21)
Return to “0.”
Automatic setting transfer
5. Verify that the heater break alarm (HBA) set value and heater overcurrent alarm are set.
Heater break alarm (HBA) set value
IMS01T21-E2
Heater overcurrent alarm set value
6-23
6. HOST COMMUNICATION
If the automatic setting is failed, automatic setting transfer is changed to “2: Automatic
setting failure*.”
* “2: Automatic setting failure” is read only.
To clear the failure state, set automatic setting transfer to “0: Normal state.”
Chang to “2: Automatic setting failure.”
Automatic setting transfer
Set to “0: Normal state.”
Automatic setting transfer
6-24
IMS01T21-E2
COMMUNICATION
DATA
DESCRIPTION
7.1 Reference to Communication Data Contents ...................................7-2
7.2 Communication Data........................................................................7-3
IMS01T21-E2 7-1
7. COMMUNICATION DATA DESCRIPTION
r
r
A
A
7.1 Reference to Communication Data Contents
(2)
(3)
(1)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
Heater break alarm (HBA) set value
HBA is to set the set values for the heater break alarm (HBA) function.
ttribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 0.0 to 100.0 A
0.0: Heater break alarm (HBA) function OFF
Factory set value: 0.0
Related parameters: Heater break/Heater overcurrent alarmautomatic setting selection (P. 7-9)
Heater break alarm (HBA) selection (P. 7-12)
RKC communication
identifier
Modbus register
address
8
ch1: 00ACH (172) ch7: 00B2H (178)
ch2: 00ADH (173) ch8: 00B3H (179)
ch3: 00AEH (174) ch9: 00B4H (180)
ch4: 00AFH (175) ch10: 00B5H (181)
ch5: 00B0H (176) ch11: 00B6H (182)
ch6: 00B1H (177) ch12: 00B7H (183)
(1) Name: Communication data name
(2) RKC communication identifier:
Communication identifier of RKC communication
(3) Modbus register address:
Modbus communication data register addresses of each channel
These register addresses are written using both of hexadecimal and decimal (in
parentheses) numbers.
(4) Description: A short description of the communication data item
(5) Attribute: A method of how communication data items are read or written when viewed
from the host computer is described.
RO: Read only data
Data direction
Z-CT module Host compute
R/W: Read and Write data
Host compute
Data direction
Z-CT module
(6) Digits: The number of communication data digits in RKC communication
(7) Number of data: The number of communication data in Modbus
Number of each channel data: 12
Number of each module data: 1
(8) Data range: Read or Write range of communication data
(9) Factory set value: Factory set value of communication data
(10) Related parameters: A name and a page of relational items
There is item including the functional description.
7-2 IMS01T21-E2
7.2 Communication Data
RKC communication identifier ID Model code
Modbus register address
This value is the type identifier code of the Z-CT module.
Attribute: RO
Digits: 32 digits
Number of data:
Data range:
Factory set value:
RKC communication identifier VR ROM version
Modbus register address
7. COMMUNICATION DATA DESCRIPTION
This value is a version of the ROM loaded on the Z-CT module.
Attribute: RO
Digits: 8 digits
Number of data:
Data range: The version of loading software
Factory set value:
IMS01T21-E2 7-3
7. COMMUNICATION DATA DESCRIPTION
Current transformer (CT)
input value monitor
RKCcommunication identifier M4
Modbus register address
ch1: 0000H (0) ch7: 0006H (6)
ch2: 0001H (1) ch8: 0007H (7)
ch3: 0002H (2) ch9: 0008H (8)
ch4: 0003H (3) ch10: 0009H (9)
ch5: 0004H (4) ch11: 000AH (10)
ch6: 0005H (5) ch12: 000BH (11)
This is the current value which captured by CT.
Phase control:
When the phase-angle is 0% or 100%, the root mean squared value is displayed.
At any other phase-angle, the current value “mean current value × 1.1” is displayed.
ON/OFF control:
When time proportioning output is used, switching ON/OFF during current measurement is not
recognized by the Z-CT module, and thus an indeterminate value is displayed for the measured current.
The displayed CT input value varies depending on enable/disable and other conditions of the control
method and heater break alarm (HBA) function. The conditions are shown below.
Control method
Phase control
ON/OFF control
* When the heater break alarm (HBA) function is inactive.
• When the heater break alarm (HBA) set-value is set to “0.0”
Heater break alarm
(HBA) enabled/disabled
When the control method
is phase control, heater
break alarm (HBA) cannot
be availed.
When the heater break
alarm (HBA) is enabled
When the heater break
alarm (HBA) is disabled *
Load factor
0 % Other than 0 % or 100 % 100 %
Root mean
squared value
Root mean
squared value
Root mean
squared value
Mean current value × 1.1
Holds the root mean squared
current value when the load
factor is 0%, or when the load
factor is 100%.
The Z-CT module cannot
recognize ON/OFF of control
output, thus an indeterminate
current value is displayed.
Root mean
squared value
Root mean
squared value
Root mean
squared value
Attribute: RO
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: When the CT type is CTL-6-P-Z: 0.0 to 10.0 A
When the CT type is CTL-6-P-N: 0.0 to 30.0 A
When the CT type is CTL-12-S56-10L-N: 0.0 to 100.0 A
Factory set value:
7-4
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier M5 Load factor conversion CT monitor
Modbus register address ch1: 000CH (12) ch7: 0012H (18)
ch2: 000DH (13) ch8: 0013H (19)
ch3: 000EH (14) ch9: 0014H (20)
ch4: 000FH (15) ch10: 0015H (21)
ch5: 0010H (16) ch11: 0016H (22)
ch6: 0011H (17) ch12: 0017H (23)
This value is mean current value or root mean squared value.
The display can be switched between the mean current value and root mean squared value.
The display is switched using the load factor conversion method (P. 7-27).
The load factor conversion CT monitor can be used when the heater break alarm (HBA) function is
enabled.
Attribute: RO
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 0.0 to 100.0 A
Factory set value:
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
CT type (P. 7-18), CT ratio (P. 7-19),
Number of heater break alarm (HBA) delay times (P. 7-20)
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26),
Load factor conversion method (P. 7-27)
monitor
RKC communication identifier AF Heater break alarm (HBA) state
Modbus register address ch1: 0018H (24) ch7: 001EH (30)
ch2: 0019H (25) ch8: 001FH (31)
ch3: 001AH (26) ch9: 0020H (32)
ch4: 001BH (27) ch10: 0021H (33)
ch5: 001CH (28) ch11: 0022H (34)
ch6: 001DH (29) ch12: 0023H (35)
This monitors the state of the heater break alarm (HBA). As the Z-CT module does not have an alarm
output terminal, use this monitor to check the state of the heater break alarm (HBA).
Attribute: RO
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Normal
1: Break
2: Melting
Factory set value:
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater break alarm (HBA) interlock release (P. 7-15), CT type (P. 7-18)
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20)
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Determination current value for automatic setting (P. 7-23)
Automatic setting time (P. 7-24), Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
IMS01T21-E2
7-5
7. COMMUNICATION DATA DESCRIPTION
state monitor
RKC communication identifier AG Heater overcurrent alarm
Modbus register address ch1: 0018H (24) ch7: 001EH (30)
ch2: 0019H (25) ch8: 001FH (31)
ch3: 001AH (26) ch9: 0020H (32)
ch4: 001BH (27) ch10: 0021H (33)
ch5: 001CH (28) ch11: 0022H (34)
ch6: 001DH (29) ch12: 0023H (35)
This monitors the state of the heater overcurrent alarm (HBA). As the Z-CT module does not have an alarm
output terminal, use this monitor to check the state of the heater overcurrent alarm.
Attribute: RO
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Normal
1: Heater overcurrent
Factory set value:
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20)
Automatic setting factor for heater overcurrent alarm (P. 7-21),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24), Module address assignments for CT input (P. 7-25)
Module channel assignments for CT input (P. 7-26)
RKC communication identifier ER Error code
Modbus register address 0030H (48)
Each error state of the Z-CT module is expressed in bit data items.
Attribute: RO
Digits: 7 digits
Number of data: 1 (Data of each module)
Data range: 1 to 7 (bit data)
RKC communication: 1: Adjustment data error
2: Data back-up error
4: A/D conversion error
Modbus communication: The output state is assigned as a bit image in binary
Factory set value:
numbers.
Bit image: 0000000000000000 Bit data: 0: OFF
1: ON
bit 15 ·····························bit 0
bit 0: Adjustment data error
bit 1: Data back-up error
bit 2: A/D conversion error
bit 3 to bit 15: Unused
7-6
IMS01T21-E2
RKC communication identifier UT Integrated operating time monitor
Modbus register address 0031H (49)
This value is an integrated operating time of the Z-CT module.
Attribute: RO
Digits: 7 digits
Number of data: 1 (Data of each module)
Data range: 0 to 19999 hours
Factory set value:
RKC communication identifier EM Backup memory state monitor
Modbus register address 0032H (50)
The contents of the RAM and those of the FRAM can be checked.
7. COMMUNICATION DATA DESCRIPTION
Attribute: RO
Digits: 1 digit
Number of data: 1 (Data of each module)
Data range: 0: The content of the backup memory does not coincide with that of the RAM.
1: The content of the backup memory coincides with that of the RAM.
Factory set value:
IMS01T21-E2
7-7
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier CJ Automatic setting state monitor
Modbus register address 0033H (51)
Displays the automatic setting state of heater break alarm (HBA) and heater over current alarm.
Attribute: RO
Digits: 1 digit
Number of data: 1 (Data of each module)
Data range: 0: Normal state (state when automatic setting is not in operation)
1: Automatic setting execution
2: Automatic setting failure
Factory set value:
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10),
Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16),
CT type (P. 7-18),
CT ratio (P. 7-19),
Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
The automatic setting state monitor is linked to the automatic setting state indication lamp (SET)
and automatic setting transfer state.
7-8
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
alarm automatic setting selection
RKC communication identifier BT Heater break/Heater overcurrent
Modbus register address ch1: 0094H (148) ch7: 009AH (154)
ch2: 0095H (149) ch8: 009BH (155)
ch3: 0096H (150) ch9: 009CH (156)
ch4: 0097H (151) ch10: 009DH (157)
ch5: 0098H (152) ch11: 009EH (158)
ch6: 0099H (153) ch12: 009FH (159)
Use the push button or communication to select whether automatic setting of the heater break alarm (HBA)
and heater overcurrent alarm is enabled or disabled for each CT input channel.
Even if automatic setting is executed for a CT input channel that is set to disabled, the alarm set value is not
updated.
Attribute: R/W
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Automatic setting is disabled. (Alarm set value cannot be automatically set by
the push button and communication.)
1: Automatic setting for heater break alarm is enabled.
2: Automatic setting for heater overcurrent alarm set value is enabled.
3: Automatic setting for heater break alarm (HBA) and heater overcurrent alarm set
values are enabled.
Valid: × Invalid:
Set value
Heater break alarm (HBA) Heater overcurrent alarm
Automatic setting validity/invalidity
0
1 ×
2 ×
3 × ×
Factory set value: 1
Related parameters: Automatic setting transfer (P. 7-10),
Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15)
Heater overcurrent alarm interlock release (P. 7-16),
CT type (P. 7-18),
CT ratio (P. 7-19),
Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22)
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24)
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Heater break alarm (HBA) and heater overcurrent alarm corresponds to the time proportioning
output.
To prevent erroneous setting, set CT input channels for which automatic setting will not be
performed to “0: Automatic setting is disabled.”
IMS01T21-E2
7-9
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier BU Automatic setting transfer
Modbus register address ch1: 00A0H (160) ch7: 00A6H (166)
ch2: 00A1H (161) ch8: 00A7H (167)
ch3: 00A2H (162) ch9: 00A8H (168)
ch4: 00A3H (163) ch10: 00A9H (169)
ch5: 00A4H (164) ch11: 00AAH (170)
ch6: 00A5H (165) ch12: 00ABH (171)
Use communication to execute automatic setting of the heater break alarm (HBA) set value and heater
overcurrent alarm set value. Automatic setting can be executed separately for each CT input channel.
Attribute: R/W
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Normal state
1: Automatic setting execution
When “1” is set, automatic setting starts.
The automatic setting state monitor is “1” during automatic setting.
In addition, automatic setting state indication lamp (SET) is on.
When automatic setting ends normally, the monitor reverts to “0.”
2: Automatic setting failure (RO)
If automatic setting fails, the value changes to “2.”
The automatic setting state monitor also changes to “2” when automatic setting
fails. In addition, the automatic setting state indication lamp (SET) blinks.
Factory set value: 0
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16),
CT type (P. 7-18),
CT ratio (P. 7-19),
Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Automatic setting can only be executed for channels that are set to a value other than
“0: Automatic setting is disabled” in heater break/heater overcurrent alarm automatic setting
selection.
7-10
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
set value
RKC communication identifier A8 Heater break alarm (HBA)
Modbus register address ch1: 00ACH (172) ch7: 00B2H (178)
ch2: 00ADH (173) ch8: 00B3H (179)
ch3: 00AEH (174) ch9: 00B4H (180)
ch4: 00AFH (175) ch10: 00B5H (181)
ch5: 00B0H (176) ch11: 00B6H (182)
ch6: 00B1H (177) ch12: 00B7H (183)
Heater break alarm (HBA) is to set the set values for the heater break alarm (HBA) function.
The settings can be configured using automatic setting or manual setting.
If the heater break alarm (HBA) set value is set to “0.0,” heater break alarm (HBA) function is not activated.
However, CT input value can be monitored.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 0.0 to 100.0 A
0.0: Heater break alarm function (HBA) OFF
(However, the current transformer (CT) input monitor can be availed.)
Factory set value: 0.0
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Heater break alarm (HBA) selection (P. 7-12),
Heater break alarm (HBA) interlock release (P. 7-15),
CT type (P. 7-18),
CT ratio (P. 7-19),
Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Function:
Heater break alarm (HBA) can only be used with time-proportional control output (relay, voltage pulse,
triac or open collector output).
The heater break alarm (HBA) function monitors the current flowing through the load by a dedicated
current transformer (CT), compares the measured value with the HBA set values, and detects a fault in the
heating circuit.
Low or No current flow (Heater break, malfunction of the control device, etc.):
When the control output is ON and the CT input value is equal to or less than the heater break
determination point for the preset number of consecutive sampling cycles, an alarm is activated.
However, heater break alarm does not action when control output ON time is 0.5 second or less.
Overcurrent or short-circuit:
When the control output is OFF and the CT input value is equal to or greater than the heater break
determination point for the preset number of consecutive sampling cycles, an alarm is activated.
However, heater break alarm does not action when control output ON time is 0.5 second or less.
IMS01T21-E2 7-11
7. COMMUNICATION DATA DESCRIPTION
selection
RKC communication identifier BZ Heater break alarm (HBA)
Modbus register address ch1: 00B8H (184) ch7: 00BEH (190)
ch2: 00B9H (185) ch8: 00BFH (191)
ch3: 00BAH (186) ch9: 00C0H (192)
ch4: 00BBH (187) ch10: 00C1H (193)
ch5: 00BCH (188) ch11: 00C2H (194)
ch6: 00BDH (189) ch12: 00C3H (195)
Select whether or not an alarm state occurs when a heater break alarm (HBA) occurs.
If “0: Heater break alarm (HBA) unused” is set, an alarm state does not occur when a heater break alarm
(HBA) occurs. However, the heater break alarm (HBA) function is active.
Attribute: R/W
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Heater break alarm (HBA) unused
1: Heater break alarm (HBA)
2: Heater break alarm (HBA) (With alarm interlock function)
Factory set value: 1
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10),
Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) interlock release (P. 7-15),
CT type (P. 7-18),
CT ratio (P. 7-19),
Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21)
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Function: The alarm interlock function is used to hold the alarm state even if the CT input
value is out of the alarm zone after its entry into the alarm zone once.
Heater break alarm (HBA) can only be used with time proportional control output (relay, voltage
pulse, triac or open collector output).
7-12
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
set value
RKC communication identifier A6 Heater overcurrent alarm
Modbus register address ch1: 00C4H (196) ch7: 00CAH (202)
ch2: 00C5H (197) ch8: 00CBH (203)
ch3: 00C6H (198) ch9: 00CCH (204)
ch4: 00C7H (199) ch10: 00CDH (205)
ch5: 00C8H (200) ch11: 00CEH (206)
ch6: 00C9H (201) ch12: 00CFH (207)
Heater overcurrent alarm is to set the set values for the heater overcurrent alarm function.
The settings can be configured using automatic setting or manual setting.
If the heater overcurrent alarm set value is set to “0.0,” heater overcurrent alarm function is not activated.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 0.0 to 105.0 A
0.0: Heater overcurrent alarm function OFF
Factory set value: 0.0
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10),
Heater overcurrent alarm selection (P. 7-14),
Heater overcurrent alarm interlock release (P. 7-16),
CT type (P. 7-18),
CT ratio (P. 7-19),
Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Function:
Heater overcurrent alarm can only be used with time-proportional control output (relay, voltage pulse, triac
or open collector output).
The heater overcurrent alarm function monitors the current flowing through the load by a dedicated current
transformer (CT), compares the measured value with the heater overcurrent alarm set values, and detects a
fault in the heating circuit.
However, heater break alarm does not action when control output ON time is 0.5 second or less.
IMS01T21-E2
7-13
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier BO Heater overcurrent alarm selection
Modbus register address ch1: 00D0H (208) ch7: 00D6H (214)
ch2: 00D1H (209) ch8: 00D7H (215)
ch3: 00D2H (210) ch9: 00D8H (216)
ch4: 00D3H (211) ch10: 00D9H (217)
ch5: 00D4H (212) ch11: 00DAH (218)
ch6: 00D5H (213) ch12: 00DBH (219)
Select whether or not an alarm state occurs when a heater overcurrent alarm occurs.
If “0: Heater overcurrent alarm unused” is set, an alarm state does not occur when a heater overcurrent
alarm occurs. However, the heater overcurrent alarm function is active.
Attribute: R/W
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Heater overcurrent alarm unused
1: Heater overcurrent alarm
2: Heater overcurrent alarm (With alarm interlock function)
Factory set value: 1
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater overcurrent alarm set value (P. 7-13)
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater overcurrent alarm (P. 7-22)
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Function: The alarm interlock function is used to hold the alarm state even if the CT input
value is out of the alarm zone after its entry into the alarm zone once.
Heater overcurrent alarm can only be used with time proportional control output (relay, voltage
pulse, triac or open collector output).
7-14
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
A
Heater break alarm (HBA)
interlock release
RKC communication identifier CX
Modbus register address ch1: 00DCH (220) ch7: 00E2H (226)
ch2: 00DDH (221) ch8: 00E3H (227)
ch3: 00DEH (222) ch9: 00E4H (228)
ch4: 00DFH (223) ch10: 00E5H (229)
ch5: 00E0H (224) ch11: 00E6H (230)
ch6: 00E1H (225) ch12: 00E7H (231)
The alarm state is turned OFF when the alarm ON state is continued by the heater break alarm (HBA)
interlock function.
Attribute: R/W
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Normal state
1: Interlock release execution
(After the interlock is released, this automatically returns to “0.”)
Factory set value: 0
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21)
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Function: The following example shows how the alarm interlock is released.
[Example]
Current value
IMS01T21-E2
Heater break alarm
(HBA) set value
Not turned OFF as the alarm
interlock continues.
Alarm state
larm interlock
release input
Invalid when the current value
is in the alarm ON zone.
OFF
OFF
ON
ON
OFF
Turned OFF as the alarm
interlock is released.
ON
OFF
OFF
To enable the heater break alarm (HBA) interlock function, the heater break alarm (HBA)
selection must be set to “2: Heater break alarm (HBA) (With alarm interlock function).”
7-15
7. COMMUNICATION DATA DESCRIPTION
A
Heater overcurrent alarm
interlock release
RKC communication identifier CY
Modbus register address ch1: 00E8H (232) ch7: 00EEH (238)
ch2: 00E9H (233) ch8: 00EFH (239)
ch3: 00EAH (234) ch9: 00F0H (240)
ch4: 00EBH (235) ch10: 00F1H (241)
ch5: 00ECH (236) ch11: 00F2H (242)
ch6: 00EDH (237) ch12: 00F3H (243)
The alarm state is turned OFF when the alarm ON state is continued by the heater overcurrent alarm
interlock function.
Attribute: R/W
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Normal state
1: Interlock release execution
(After the interlock is released, this automatically returns to “0.”)
Factory set value: 0
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater overcurrent alarm (P. 7-22)
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Function: The following example shows how the alarm interlock is released.
[Example]
Heater overcurrent
alarm set value
Alarm state
larm interlock
release input
Invalid when the current value
is in the alarm ON zone.
OFF
OFF
ON
Turned OFF as the alarm
interlock is released.
To enable the heater overcurrent alarm interlock function, the heater overcurrent alarm selection
Current value
ON
OFF
Not turned OFF as the alarm
interlock continues.
OFF
ON
OFF
must be set to “2: Heater overcurrent alarm (With alarm interlock function).”
7-16
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier LK Set lock
Modbus register address 0178H (376)
This restricts changes to the communication data settings. The setting can be used to prevent operation
errors while the system is running. When “1: Lock” is set, the following communication data cannot be
changed.
• CT type
• CT ratio
• Number of heater break alarm (HBA) delay times
• Automatic setting factor for heater break alarm (HBA)
• Automatic setting factor for heater overcurrent alarm
• Determination current value for automatic setting
• Automatic setting time
• Module address assignments for CT input
• Module channel assignments for CT input
• Load factor conversion method
• Interval time
Attribute: R/W
Digits: 1 digit
Number of data: 1 (Data of each module)
Data range: 0: Unlock
1: Lock
Factory set value: 0
Related parameters: CT type (P. 7-18), CT ratio (P. 7-19)
Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21)
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23)
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25)
Module channel assignments for CT input (P. 7-26),
Load factor conversion method (P. 7-27)
Interval time (P. 7-28)
IMS01T21-E2
7-17
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier BV CT type
Modbus register address ch1: 0179H (377) ch7: 017FH (383)
ch2: 017AH (378) ch8: 0180H (384)
ch3: 017BH (379) ch9: 0181H (385)
ch4: 017CH (380) ch10: 0182H (386)
ch5: 017DH (381) ch11: 0183H (387)
ch6: 017EH (382) ch12: 0184H (388)
Type of CT to be connected to the Z-CT module.
Non-specified CTs can also be used. However, there are certain requirements.
If the following conditions are not met, the Z-CT module cannot capture the current value.
• Current range: 100.0 A max. (Must be used within a current range for which the input
resolution does not exceed 30000.)
• Accuracy: 2 [%] of Reading or 1.0 [A]
• Allowable input range: −700.0 mV to +700.0 mV
• Display resolution: 0.1 [A]
• Input resolution: 30000 or less
<Computing equation>
Input resolution 25000
Input resolution = 200000 ×
Calculation example of input resolution
CT ratio (CT number of winds): 400 Current range: 0 to 50 A
Input resolution = 200000 ×
Current range
CT ratio
50
400
= 25000
Attribute: R/W
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: CTL-6-P-N (0.0 to 30.0 A) [Specified CT]
1: CTL-12-S56-10L-N (0.0 to 100.0 A)
* [Specified CT]
2: CTL-6-P-Z (0.0 to 10.0 A) [Specified CT]
* Set to 1 when using a non-specified CT.
Factory set value: Depends on model code (When not specifying: 0)
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-11),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
7-18
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier XT CT ratio
Modbus register address ch1: 0185H (389) ch7: 018BH (395)
ch2: 0186H (390) ch8: 018CH (396)
ch3: 0187H (391) ch9: 018DH (397)
ch4: 0188H (392) ch10: 018EH (398)
ch5: 0189H (393) ch11: 018FH (399)
ch6: 018AH (394) ch12: 0190H (400)
Use to set the number of turns (ratio) of the current transformer that is used with the heater break alarm
(HBA) and heater overcurrent alarm.
When using a non-specified CT, set the number of winds (ratio) of the CT.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 0 to 9999
Factory set value: CTL-6-P-N, CTL-6-P-Z: 800
CTL-12-S56-10L-N: 1000
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16),
CT type (P. 7-18), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24)
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
IMS01T21-E2
7-19
7. COMMUNICATION DATA DESCRIPTION
Number of heater break alarm
(HBA) delay times
RKC communication identifier DI
Modbus register address ch1: 0191H (401) ch7: 0197H (407)
ch2: 0192H (402) ch8: 0198H (408)
ch3: 0193H (403) ch9: 0199H (409)
ch4: 0194H (404) ch10: 019AH (410)
ch5: 0195H (405) ch11: 019BH (411)
ch6: 0196H (406) ch12: 019CH (412)
To prevent producing a false alarm, the alarm function waits to produce an alarm status until the measured
CT input value is in an alarm range for the preset number of consecutive sampling cycles.
This setting is common to both heater break alarm (HBA) and heater overcurrent alarm.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 0 to 255 times
Factory set value: 5
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
7-20
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
Automatic setting factor for
heater break alarm (HBA)
RKC communication identifier BW
Modbus register address ch1: 019DH (413) ch7: 01A3H (419)
ch2: 019EH (414) ch8: 01A4H (420)
ch3: 019FH (415) ch9: 01A5H (421)
ch4: 01A0H (416) ch10: 01A6H (422)
ch5: 01A1H (417) ch11: 01A7H (423)
ch6: 01A2H (418) ch12: 01A8H (424)
This factor is used for automatic setting of the heater break alarm (HBA) set value.
Set the percent to which the current decreases with respect to the maximum load current which is taken as
the point of calculation of the heater break alarm (HBA) set value.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 1 to 100 %
Factory set value: 75
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater break alarm (HBA) interlock release (P. 7-15), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
Example of automatic setting of the heater break alarm (HBA) set value when the automatic
setting factor for heater break alarm (HBA) is set to “75 % (Factory set value).”
<Condition>
• Number of phase: Single-phase • Heater capacity: 4 kW
• Power supply voltage: 200 V AC • Number of heater: 1
Maximum load current value 20.0 A
Z-CT module
200 V AC
Heater
CT
The heater break alarm (HBA) set value is calculated using the equation below when automatic setting is
executed.
Heater break alarm (HBA) set value = Maximum load current value [A] ×
Automatic setting factor for heater break alarm (HBA) [%]
= 20.0 [A] × 75 [%]
= 15.0 [A]
Heater break alarm (HBA) set value 15.0 A
IMS01T21-E2 7-21
7. COMMUNICATION DATA DESCRIPTION
Automatic setting factor for
heater overcurrent alarm
RKC communication identifier B9
Modbus register address ch1: 01A9H (425) ch7: 01AFH (431)
ch2: 01AAH (426) ch8: 01B0H (432)
ch3: 01ABH (427) ch9: 01B1H (433)
ch4: 01ACH (428) ch10: 01B2H (434)
ch5: 01ADH (429) ch11: 01B3H (435)
ch6: 01AEH (430) ch12: 01B4H (436)
This factor is used for automatic setting of the heater overcurrent alarm set value.
Set the percent to which the CT input value increases with respect to the maximum load current which is
taken as the point of calculation of the heater overcurrent alarm set value.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 100 to 1000 %
Factory set value: 200
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Determination current value for automatic setting (P. 7-23)
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25)
Module channel assignments for CT input (P. 7-26)
Example of automatic setting of the heater overcurrent alarm set value when the automatic
setting factor for heater overcurrent alarm is set to “200 % (Factory set value)”.
<Condition>
• Number of phase: Single-phase • Heater capacity: 1 kW
• Power supply voltage: 200 V AC • Number of heater: 3
200 V AC
The heater overcurrent alarm set value is calculated using the equation below when automatic setting is executed.
Maximum load current value 15.0 A
Heater
CT
Z-CT module
7-22
Heater overcurrent alarm set value = Maximum load current value [A] ×
Automatic setting factor for heater overcurrent alarm [%]
= 15.0 [A] × 200 [%]
= 30.0 [A]
Heater overcurrent alarm set value 30.0 A
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
Determination current value
for automatic setting
RKC communication identifier BP
Modbus register address ch1: 01B5H (437) ch7: 01BBH (443)
ch2: 01B6H (438) ch8: 01BCH (444)
ch3: 01B7H (439) ch9: 01BDH (445)
ch4: 01B8H (440) ch10: 01BEH (446)
ch5: 01B9H (441) ch11: 01BFH (447)
ch6: 01BAH (442) ch12: 01C0H (448)
This is the minimum determination current value used for automatic setting of the heater break alarm
(HBA) set value and heater overcurrent alarm set value.
If the value is below the automatic setting determination current value when automatic setting is executed,
the heater break alarm (HBA) set value or heater overcurrent alarm set value will not be calculated.
If the CT input value is below the determination current value for automatic setting when automatic setting
ends, automatic setting fails.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 0.0 to 100.0 A
Factory set value: 1.0
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
IMS01T21-E2
7-23
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier BQ Automatic setting time
Modbus register address ch1: 01C1H (449) ch7: 01C7H (455)
ch2: 01C2H (450) ch8: 01C8H (456)
ch3: 01C3H (451) ch9: 01C9H (457)
ch4: 01C4H (452) ch10: 01CAH (458)
ch5: 01C5H (453) ch11: 01CBH (459)
ch6: 01C6H (454) ch12: 01CCH (460)
This is the calculation time for automatic setting. If the automatic setting time is exceeded, automatic
setting ends.
If calculation of the heater break alarm (HBA) set value or heater overcurrent alarm set value does not end
within the automatic setting time, automatic setting fails.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 10 to 250 seconds
Factory set value: 60
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Module address assignments for CT input (P. 7-25),
Module channel assignments for CT input (P. 7-26)
7-24
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
Module address assignments for
CT input
RKC communication identifier BX
Modbus register address ch1: 01CDH (461) ch7: 01D3H (467)
ch2: 01CEH (462) ch8: 01D4H (468)
ch3: 01CFH (463) ch9: 01D5H (469)
ch4: 01D0H (464) ch10: 01D6H (470)
ch5: 01D1H (465) ch11: 01D7H (471)
ch6: 01D2H (466) ch12: 01D8H (472)
This assigns the target device addresses of the Z-TIO module or Z-DIO module for which determination of
heater break alarm (HBA) and heater overcurrent alarm is performed.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 0 to 99
Factory set value: 0
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module channel assignments for CT input (P. 7-26)
For details of module address assignments for CT input, see 6.3 Automatic Setting Example
(P. 6-12).
IMS01T21-E2
7-25
7. COMMUNICATION DATA DESCRIPTION
Module channel assignments for
CT input
RKC communication identifier BY
Modbus register address ch1: 01D9H (473) ch7: 01DFH (479)
ch2: 01DAH (474) ch8: 01E0H (480)
ch3: 01DBH (475) ch9: 01E1H (481)
ch4: 01DCH (476) ch10: 01E2H (482)
ch5: 01DDH (477) ch11: 01E3H (483)
ch6: 01DEH (478) ch12: 01E4H (484)
This assigns the target channel numbers of the control output of the Z-TIO module or the DO output of the
Z-DIO module for which determination of heater break alarm (HBA) and heater overcurrent alarm is
performed.
Attribute: R/W
Digits: 7 digits
Number of data: 12 (Data of each channel)
Data range: 1 to 99
Factory set value: 1
Related parameters: Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10),
Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25)
For details of module channel assignments for CT input, see 6.3 Automatic Setting Example
(P. 6-12).
7-26
IMS01T21-E2
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier IC Load factor conversion method
Modbus register address ch1: 01E5H (485) ch7: 01EBH (491)
ch2: 01E6H (486) ch8: 01ECH (492)
ch3: 01E7H (487) ch9: 01EDH (493)
ch4: 01E8H (488) ch10: 01EEH (494)
ch5: 01E9H (489) ch11: 01EFH (495)
ch6: 01EAH (490) ch12: 01F0H (496)
Select the current type to be displayed on the load factor conversion CT monitor.
Select either mean current value conversion or root mean squared value conversion.
The load factor mean value conversion equation and the load factor root mean squared value conversion
equation are shown below.
• Load factor mean value conversion equation:
Mean = Ion × θ [A]
• Load factor root mean squared value conversion equation:
Root mean squared value = Ion × θ [A]
: Root mean squared current value [A] when output is ON
I
on
θ
: Load factor (θ = Manipulated output value (MV)／100)
Attribute: R/W
Digits: 1 digit
Number of data: 12 (Data of each channel)
Data range: 0: Mean conversion
1: Root mean squared value conversion
Factory set value: 0
Related parameters: Load factor conversion CT monitor (P. 7-5),
Heater break/Heater overcurrent alarm automatic setting selection (P. 7-9),
Automatic setting transfer (P. 7-10), Heater break alarm (HBA) set value (P. 7-11),
Heater break alarm (HBA) selection (P. 7-12),
Heater overcurrent alarm set value (P. 7-13),
Heater overcurrent alarm selection (P. 7-14),
Heater break alarm (HBA) interlock release (P. 7-15),
Heater overcurrent alarm interlock release (P. 7-16), CT type (P. 7-18),
CT ratio (P. 7-19), Number of heater break alarm (HBA) delay times (P. 7-20),
Automatic setting factor for heater break alarm (HBA) (P. 7-21),
Automatic setting factor for heater overcurrent alarm (P. 7-22),
Determination current value for automatic setting (P. 7-23),
Automatic setting time (P. 7-24),
Module address assignments for CT input (P. 7-25)
When the heater break alarm (HBA) set value is set to “0.0: Heater break alarm (HBA) OFF”, the
load factor conversion function is not activated.
The load factor conversion function corresponds to the time proportional output.
IMS01T21-E2
7-27
7. COMMUNICATION DATA DESCRIPTION
RKC communication identifier ZX Interval time
Modbus register address 01F1H (497)
RS-485 sets the transmission transfer time to accurately assure the sending/receiving selection timing.
Attribute: R/W
Digits: 7 digits
Number of data: 1 (Data of each module)
Data range: 0 to 250 ms
Factory set value: 10
RS-485 sets the transmission transfer time to accurately assure the sending/receiving selection
timing. The sending and receiving of RS-485 communication is conducted through two wires;
consequently, the transmission and reception of data requires precise timing.
Then, set the desired transmission transfer time to secure the time until the transmission line is
changed to data receiving after the host computer ends its sending.
The controller’s interval time must match the specifications of the host computer.
7-28
IMS01T21-E2
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