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Modular Temperature Controller
EJ1
CSM_EJ1_DS_E_10_2
In-panel Temperature Controller with Flexible
Modular Design and Wide Integration with Host
Devices
• The compact modular structure enables construction of temperature
systems optimally suited to the application.
• Connection can be made to a Programmable Controller without any
programming required, reducing the number of steps required in ladder
programming design.
• One fully universal-input Unit includes a thermocouple, platinum-resistance
thermometer, and analog input for easy selection and reduced inventory
requirements.
• Connect directly to the G3ZA Multi-channel Power Controller using
optimum cycle control for high-accuracy regulation with minimal noise.
• Autotuning (AT) can be used for independent heating/cooling PID control.
• Self-tuning (ST) can be used to calculate the PID constants with the step
response method.
• Up to 16 Temperature Controllers can be connected to a single DeviceNet
Communications Unit.
Supports DeviceNet Communications.
Refer to the “Safety Precautions” on
page 20.
Ordering Information
Temperature Controller
Standard Control Models
Power
supply
voltage
Name
Basic Unit
(temperature
control) *1
V1.2
No. of
control
points
24 VDC 2
supplied
from the
End Unit
4
2
HFU with
Programless
Communications
*1
None
Control
outputs
1 and 2
Voltage
output:
2 points
(for SSR
drive) *2
Control
outputs
3 and 4
Transistor
output: 2 points
(sinking)
Functions
Auxiliary
output
None
Voltage output:
2 points (for
SSR drive) *2
Current
output:
2 points
Transistor
output: 2 points
(sinking)
None
None
Heater
Event
burnout
inputs
alarm
Communications
functions
2 *3
G3ZA connection
port: RS-485
From End Unit:
Port A or port B:
RS-485
None
2
None
2
Transistor
output:
4 points
(sinking)
4
Port C: RS-485 or
RS-232C
selectable.
Input type
Thermocouple,
platinum
resistance
thermometer,
analog
voltage, and
analog current
selectable for
each channel.
No input
Port C: RS-422
From End Unit:
Port A: RS-485
HFU with
DeviceNet
Communications
*1
None
24 VDC
Transistor
output:
2 points
(sinking)
None
None
Model
M3 terminal
EJ1N-TC2A-QNHB
Screw-less
clamp
EJ1N-TC2B-QNHB
M3 terminal
EJ1N-TC4A-QQ
Screw-less
clamp
EJ1N-TC4B-QQ
M3 terminal
EJ1N-TC2A-CNB
Screw-less
clamp
EJ1N-TC2B-CNB
M3 terminal
EJ1N-HFUA-NFLK
Screw-less
clamp
From End Unit:
Port A: RS-485
V1.2
End Unit *1
Terminal
EJ1N-HFUB-NFLK
M3 terminal
EJ1N-HFUA-NFL2
Screw-less
clamp
EJ1N-HFUB-NFL2
DeviceNet
communications
Screw-less
clamp
Port A or B: RS485
Connector: Port A
M3 terminal
EJ1C-EDUA-NFLK
Detachable
connector
EJ1C-EDUC-NFLK
EJ1N-HFUB-DRT
*1. An End Unit is always required for connection to a Basic Unit or an HFU. An HFU cannot operate without a Basic Unit. External communications cannot be performed when using a Basic
Unit only.
*2. For heating/cooling control applications, control outputs 3 and 4 on the 2-point models are used for the cooling or heating control outputs.
On the 4-point models, heating/cooling control is performed for the two input points.
*3. When using the heater burnout alarm, purchase a Current Transformer (E54-CT1 or E54-CT3) separately.
Note: Products for the EtherCAT master are also available. Ask your OMRON sales representative for details.
Functional Upgrades
Refer to page 17 for details.
Upgrade functions are supported by the indicated version ("V1.1" or "V1.2") or a higher version of the software.
Refer to the following manual for precautionary information and other information necessary to use the EJ1:
EJ1 Modular Temperature Controller User’s Manual (Cat. No. H142)
EtherCAT is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.
1
EJ1
Accessories (Order Separately)
Current Transformer (CT)
Diameter
CX-Thermo Support Software Ver. 4.1
Model
5.8 dia.
E54-CT1
12.0 dia.
E54-CT3
Model
EST2-2C-MV4
USB-Serial Conversion Cable
G3ZA Connecting Cable
Cable length
Model
Model
5m
E58-CIFQ1
EJ1C-CBLA050
Rail Mounting Equipment
Name
Model
PFP-100N
Mounting Rail
PFP-50N
Specifications
Basic Unit/EJ1N-TC
Ratings
Item
Type
EJ1N-TC4
Power supply voltage
24 VDC
Operating voltage range
85% to 110% of rated voltage
Power consumption
5 W max. (at maximum load)
Input *
Thermocouple:
ES1B Infrared Thermosensor:
Analog input:
Platinum resistance thermometer:
Input impedance
EJ1N-TC2
4 W max. (at maximum load)
K, J, T, E, L, U, N, R, S, B, W, PLII
10 to 70°C, 60 to 120°C, 115 to 165°C, 140 to 260°C
4 to 20 mA, 0 to 20 mA, 1 to 5 V, 0 to 5 V, 0 to 10 V
Pt100, JPt100
Current input: 150 Ω max., voltage input: 1 MΩ min.
Voltage output
Output voltage: 12 VDC ±15%, max. load current: 21 mA (PNP models with short-circuit protection circuit)
Transistor output
---
Max. operating voltage: 30 V, max. load current: 100 mA
Current output
---
Current output range: 4 to 20 mA or 0 to 20 mA DC
Load: 500 Ω max. (including transfer output)
(Resolution: Approx. 2,800 for 4 to 20 mA DC, approx.
3,500 for 0 to 20 mA DC)
Input points
---
2
Contact input
---
ON: 1 kΩ max., OFF: 100 kΩ min.
---
ON: Residual voltage: 1.5 V max.,
OFF: Leakage current: 0.1 mA max.
---
Outflow current: Approx. 4 mA per point
Control
outputs
Event
inputs
Non-contact
input
Number of input and control
Input points: 4, Control points: 4
points
Input points: 2, Control points: 2
Setting method
Via communications
Control method
ON/OFF control or 2-PID (with autotuning, self-tuning)
Other functions
Two-point input shift, digital input filter, remote SP, SP ramp, manual manipulated variable, manipulated variable
limiter, interference overshoot adjustment, loop burnout alarm, RUN/STOP, banks, I/O allocations, etc.
Ambient temperature range
Operating: −10°C to 55°C, Storage: −25°C to 65°C (with no icing or condensation)
V1.2
Ambient humidity range
Operating: 25% to 85% (with no condensation)
* Inputs are fully universal. Therefore, platinum resistance thermometer, thermocouple, infrared thermosensor, and analog input can be selected.
2
EJ1
Characteristics
Indication accuracy
Thermocouple input/platinum resistance thermometer input:
(±0.5% of indication value (PV) or ±1°C, whichever is greater) ±1 digit max. *1
Analog input: ±0.5% FS ±1 digit max.
CT input:
±5% FS ±1 digit max.
Hysteresis
0.1 to 999.9 EU (in units of 0.1 EU) *2
Proportional band (P)
0.1 to 999.9 EU (in units of 0.1 EU) *2
Integral time (I)
0 to 3,999 s (in units of 1 s)
Derivative time (D)
0.0 to 999.9 s (in units of 0.1 s)
Control period
0.5 s, 1 to 99 s (in units of 1 s)
Manual reset value
0.0% to 100.0% (in units of 0.1%)
Alarm setting range
−1,999 to 9,999 (decimal point position depends on input type)
Sampling period
250 ms
Influence of signal source
resistance
Thermocouple:
0.1°C (0.2°F)/Ω max. (100 Ω max per line) *3
Platinum resistance thermometer: 0.4°C (0.8°F)/Ω max. (10 Ω max per line)
Insulation resistance
20 MΩ min. (at 500 VDC)
Dielectric strength
600 VAC, 50/60 Hz for 1 min between current-carrying terminals of different polarity
Vibration resistance
10 to 55 Hz, 20 m/s2 for 2 hours each in X, Y, and Z directions
Shock resistance
150 m/s2, 3 times each in 6 directions
Weight
180 g
Degree of protection
Rear case: IP20, Terminal section: IP00
Memory protection
EEPROM (non-volatile memory) (number of writes: 100,000)
Standards Approved standards
UL61010C-1, CSA C22.2 No.1010-1
EMI:
EN61326
EMI Radiated:
EN55011 Group1 class A
EMI Conducted:
EN55011 Group1 class A
EMS:
EN61326
EMC Directive
ESD Immunity:
EN61000-4-2
Electromagnetic Field Immunity:
EN61000-4-3
Burst immunity/Noise Immunity:
EN61000-4-4
Conducted Disturbance Immunity:
EN61000-4-6
Surge Immunity:
EN61000-4-5
*1. The indication of K thermocouples in the −200 to 1,300°C range, T and N thermocouples at a temperature of −100°C or less, and U and L
thermocouples at any temperature is ±2°C ±1 digit maximum. The indication of B thermocouples at a temperature of 400°C or less is
unrestricted. The indication of R and S thermocouples at a temperature of 200°C or less is ±3°C ±1 digit max.
W = (±0.5% of indication value (PV) or ±3°C, whichever is greater) ±1 digit max. PLII = (±0.5% of indication value (PV) or ±2°C, whichever is
greater) ±1 digit max.
The indication accuracy for K thermocouples in the −199.9 to 999.9°C range V1.2 is (±0.5% of indication value (PV) or ±1°C, whichever is
greater) ±10 digit maximum. However, at a temperature of -100°C or less, it is ±2°C ±10 digit maximum.
*2. “EU” stands for Engineering Unit. The location of the decimal point depends on the type of sensor that is selected.
If the decimal point locations is set to 0 (****), however, it will be treated as if it were set to 1 (***.*).
*3. B, R, S, and W sensors: 0.2°C/Ω max. (100 Ω max.)
3
EJ1
Communications Specifications
Port B *1
Item
Port A Terminal/ Port A Connector *1
G3ZA Connection Port *2
Transmission path
RS-485 (multipoint)
connection
Communications
method
RS-485 (two-wire, half duplex)
Synchronization
method
Start-stop synchronization
Communications
protocol
CompoWay/F, Modbus *4
Baud rate
9.6, 19.2, 38.4, 57.6, or 115.2 kbps
38.4 kbps fixed
Transmission
code
CompoWay/F: ASCII, Modbus: RTU
CompoWay/F: ASCII
Data bit length
7 or 8 bits
7 bits
Stop bit length
1 or 2 bits
2 bits
Vertical parity (none, even, or odd)
Vertical parity (even)
Error detection
V1.1
CompoWay/F
57.6 kbps fixed
Block check character (BCC): with CompoWay/F, CRC-16: (with Modbus)
Flow control
None
Interface
RS-485
Retry function
None
Communications
0 to 99 ms (default: 5 ms)
response wait time
V1.1
1 to 99 ms (default: 1 ms)
---
64 Units (model numbers with TC4: 256 64 Units (model numbers with TC4: 256
channels, model numbers with TC2: 128 channels, model numbers with TC2: 128
8 Units (Communications connection
channels)
channels)
via G3ZA port on the Basic Unit)
Communications connection via port B
Communications connection via port A
on the End Unit
on the End Unit
*1. Connection from the EJ1C-EDU. When using an HFU, port B on the End Unit can be used for distributed placement only.
*2. A special cable (EJ1C-CBLA050) must be purchased separately for the G3ZA connection.
*3. For the number of Units that can be connected, refer to “Connection Precautions” on page 11.
*4. The Modbus protocol can be used with Basic Unit with version 1.1 or higher.
Number of Units
that can be
connected in
parallel *3
Current Transformer (CT) Rating
Dielectric
strength
1,000 VAC for 1 min
Vibration
resistance
50 Hz, 98 m/s2
Weight
E54-CT1: Approx. 11.5 g, E54-CT3: Approx. 50 g
Accessories
Armatures (2), plugs (2)
(E54-CT3 only)
Characteristics of the Heater Burnout
Alarm, SSR Failure Alarm, and Heater
Overcurrent Alarm (TC2@-QNHB Model
Only)
Maximum
heater current
100 VAC
Input current
indication
accuracy
(±5.0A) ±1 digit max.
Heater
burnout alarm
setting range
0.1 to 99.9 A (in units of 0.1 A)
0.0 A: Heater burnout alarm output turns OFF.
100.0 A: Heater burnout alarm output turns ON.
Min. detection ON time: 100 ms *1
SSR failure
alarm setting
range
0.1 to 99.9 A (in units of 0.1 A)
0.0 A: SSR failure alarm output turns ON.
100.0 A: SSR alarm output turns OFF.
Min. detection OFF time: 100 ms *2
Heater
0.1 to 99.9 A (in units of 0.1 A)
overcurrent
0.0 A: Heater overcurrent alarm output turns ON.
100.0 A: Heater overcurrent alarm output turns OFF.
alarm setting
Min. detection ON time: 100 ms *1
range
*1. When the control output ON time is less than 100 ms, heater
burnout detection, heater overcurrent detection, and heater
current measurement are not performed.
*2. When the control output OFF time is less than 100 ms, SSR
failure alarm and leakage current measurement are not
performed.
4
EJ1
Input Ranges
Sensor inputs are fully universal. Therefore, platinum resistance thermometer, thermocouple, infrared thermosensor, and analog input can be selected.
Inputs can be set for each channel using universal inputs.
Platinum resistance
thermometer
Input type
Name
Pt100
Tempe
rature
range
(°C)
ES1B Infrared
Thermosensor
Thermocouple
JPt100
K
J
T
E
L
U
N
R
S
B
W
PL
II
10 to
70 °C
60 to
120 °C
115 to
165 °C
120
165
140 to
260 °C
2300
2300
1800
1800
1700 1700
1700
1600
1500
1400
1300
1300
1300
1300
1200
1100
1000
900
850
850
850
800
700
600
600
500.0
500
500.0
500.0
400.0
400
400
400.0
400
400.0
260
300
200
100.0
100
0
Setting number
0.0
−
−
0
1
0.0
0
−
2
Input type
3
−
−
−
6
7
8
−
4
5
4 to
20 mA
0 to
20 mA
1 to
5V
0
0
16
17
0
0
0
0
0
0
19
20
21
22
23
24
−
−
−
9
10
11
12
−
−
−
13
14
15
18
Thermo
couple
Analog input
Name
Tempe
rature
range
(°C)
90
100
−100.0
−200.0
100.0
0 to
5V
0 to
10 V
K
2300
1800
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
Any of the following ranges, by scaling:
−1999 to 9999
−199.9
−199.9 to 999.9
to 999.9
−19.99 to 99.99
−1.999 to 9.999
500
400
300
200
100
0
−100.0
−200.0
Setting number
25
26
27
28
Applicable standards by input type are as follows:
K, J, T, E, N, R, S, B: JIS C1602-1995, IEC584-1
L:
Fe-CuNi, DIN 43710-1985
U:
Cu-CuNi, DIN 43710-1985
29
30 V1.2
W:
PL II:
W5Re/W26Re, ASTM E988-1990
According to Platinel II Electromotive Force
Table by Engelhard Corp.
JPt100: JIS C 1604-1989, JIS C 1606-1989
Pt100: JIS C 1604-1997 IEC 751
Shaded ranges indicate default settings.
5
EJ1
HFU Unit/EJ1N-HFU@-NFL@
Ratings
Power supply voltage
24 VDC
Operating voltage range
85% to 110% of rated voltage
Power consumption
2 W max. (at maximum load)
Auxiliary outputs
*
Event inputs
Outputs
4
Transistor outputs
Max. operating voltage: 30 VDC, Max. load current: 50 mA
Inputs
4
Contact inputs
ON: 1 kΩ max., OFF: 100 kΩ min.
Transistor inputs
ON: residual voltage of 1.5 max., OFF: leakage current of 0.1 mA max.
Outflow current: Approx. 4 mA (per contact)
Programless
connection
Downloading
(EJ1 reads data from a PLC)
Number of parameters that can be set: 1200 V1.2
Uploading
(EJ1 writes data to a PLC)
Number of parameters that can be set: 1200 V1.2
Applicable PLCs
OMRON: CS/CJ/NJ Series
Mitsubishi Electric: MELSEC-An/AnS/FX3UC Series V1.1
Mitsubishi Electric: MELSEC-Q/QnA/QnAS Series
Ambient temperature range
Operating: −10°C to 55°C
Storage: −25°C to 65°C (with no icing or condensation)
Ambient humidity range
Operating: 25% to 85% (with no condensation)
* Auxiliary outputs can be allocated using digital output allocations.
Characteristics
Insulation resistance
20 MΩ min. (at 500 VDC)
Dielectric strength
600 VAC, 50/60 Hz for 1 min between current-carrying terminals of different polarity
Vibration resistance
10 to 55 Hz, 20 m/s2 for 2 hours each in X, Y, and Z directions
Shock resistance
150 m/s2, 3 times each in 6 directions
Weight
160 g
Degree of protection
Rear case: IP20, Terminal section: IP00
Memory protection
Standards
EEPROM (non-volatile memory) (number of writes: 100,000)
Approved standards
EMC Directive
UL61010C-1, CSA C22.2 No.1010-1
Refer to page 3.
Communications Characteristics: Port C
Transmission path connection
RS-485/RS-422: Multi-point, RS-232C: Point-to-point *1
Communications method
RS-485/RS-422 (two-wire, half duplex), RS-232C
Synchronization method
Start-stop synchronization
Communications protocol
• OMRON PLC protocol (Connectable PLCs: SYSMAC CS/CJ/CP Series)
• AnA/AnU CPU common commands (Connectable PLCs: MELSEC-An/AnS/FX3UC Series) V1.1
• MC protocol (form 5) (Connectable PLCs: MELSEC-Q/QnA/QnAS Series)
Baud rate
9.6, 19.2, 38.4, 57.6, or 115.2 kbps
Transmission code
Binary
Data bit length
8 bits
Stop bit length
1 bit
Error detection
Depends on protocol selected for the programless communications protocol.
Flow control
None
Interface
RS-485, RS-422, RS-232C *1
Retry function
Available
Communications response wait time
0 to 99 ms (default: 5 ms) V1.1
Number of Basic Units that can be connected in
parallel *2
32 Units (model numbers with TC4:128 channels max., model numbers with TC2:64 channels max.)
Number of HFUs that can be connected V1.1
• CS/CJ/NJ-series PLCs: 8 (EJ1-HFU@-NFLK)
• MELEC Q/QnA/QnAS-series PLCs: 8 (EJ1-HFU@-NFL2)
*1. The communications method can be switched between RS-485 and RS-232C. A separate model must be used for RS-422 communications.
*2. For the number of Units that can be connected, refer to “Connection Precautions” on page 11.
6
EJ1
HFU Unit/EJ1N-HFUB-DRT
Ratings
Power supply voltage
Operating voltage
range
DeviceNet power supply
24 VDC (for internal circuits)
EDU power supply
24 VDC (for RS-485 communications circuits and Temperature Controllers)
DeviceNet power supply
11 to 25 VDC
EDU power supply
20.4 to 26.4 VDC
Power consumption (at maximum load)
1 W max. (at maximum load)
Main functions
Remote I/O communications, explicit message communications, CompoWay/F command feed-through
function, parameter backup function, and configuration registration
Ambient temperature range
Operating: −10°C to 55°C
Storage:
−25°C to 65°C (with no icing or condensation)
Ambient humidity range
Operating: 25% to 85% (with no condensation)
Characteristics
Insulation resistance
20 MΩ min. (at 500 VDC)
Dielectric strength
600 VAC, 50/60 Hz for 1 min
Vibration resistance
10 to 55 Hz, 10 m/s2 for 2 hours each in X, Y, and Z directions
Shock resistance
150m/s2 max. 3 times each in 3 axes, 6 directions
Weight
70 g max.
Degree of protection
IP20
Memory protection
Standards
EEPROM, 100,000 write operations (backup data)
Approved standards
EMC Directive
UL61010-1, CSA C22.2 No.1010-1
Refer to page 3.
Communications Characteristics
Communications protocol
Communications
functions
Conforms to DeviceNet.
Remote I/O
communications
Master-slave connections (polling, COS, or cyclic)
Conforms to DeviceNet specifications.
I/O allocation
Input and output data can be allocated freely by user with the Configurator.
Allocations can be made to DeviceNet parameters or Temperature Controller parameters.
Two blocks for IN Area, up to 100 words
One block for OUT Area, up to 100 words (The first word is always allocated to the OUT Enable Bit.)
Message communications
Explicit message communications
CompoWay/F communications commands can be sent (commands are sent in explicit message format).
Connection format
Combination of multidrop and T-branch connections (for trunk and drop lines)
Baud rate
DeviceNet: 500, 250, or 125 kbps, or automatic detection of master baud rate
Communications media
Special 5-wire cable (2 signal lines, 2 power lines, and 1 shield line)
Communications distance
Baud rate
Network length
Drop line length
Total drop line length
500 kbps
100 m max. (100 m max.)
6 m max.
39 m max.
250 kbps
250 m max. (100 m max.)
6 m max.
78 m max.
125 kbps
500 m max. (100 m max.)
6 m max.
156 m max.
The values in parentheses apply when Thin Cables are used.
Communications power supply
11 to 25 VDC
Maximum number of nodes that can be connected
64 (includes Configurator when used.)
Maximum number of slaves that can be connected
63
Error control
CRC error detection
DeviceNet power supply
Power supplied from DeviceNet communications connector
Applicable Temperature Controllers
EJ1 Series (excluding the EJ1G)
TC4: EJ1N-TC4A-QQ and EJ1N-TC4B-QQ
TC2: EJ1N-TC2A-QNHB, EJ1N-TC2B-QNHB, EJ1N-TC2A-CNB, and EJ1N-TC2B-CNB
Maximum number of Temperature Controllers that
can be connected *
16 Units (model numbers with TC4: 64 channels max., model numbers with TC2: 32 channels max.)
* For the number of Units that can be connected, refer to “Connection Precautions” on page 11.
7
EJ1
End Unit/EJ1C-EDU
Ratings
Power supply voltage
24 VDC
Operating voltage range
85% to 110% of rated voltage
Auxiliary output
*
Outputs
Transistor outputs
2
Max. operating voltage: 30 VDC, Max. load current: 50 mA
Ambient temperature range
Operating: −10°C to 55°C
Storage: −25°C to 65°C (with no icing or condensation)
Ambient humidity range
Operating: 25% to 85% (with no condensation)
* Auxiliary output can be allocated using the bus output allocation for each Basic Unit.
Characteristics
Insulation resistance
20 MΩ min. (at 500 VDC)
Dielectric strength
600 VAC, 50/60 Hz for 1 min between current-carrying terminals of different polarity
Vibration resistance
10 to 55 Hz, 20 m/s2 for 2 hours each in X, Y, and Z directions
Shock resistance
150 m/s2, 3 times each in 6 directions
Weight
70 g
Degree of protection
Standards
Approved standards
EMC Directive
End Unit case: IP20, Terminal section: IP00
UL61010C-1, CSA C22.2 No.1010-1
Same as for the Basic Unit. Refer to page 3.
Communications
Port B *1
Basic Unit Communications (Refer to “Communications Specifications” on page 4.)
Port A
Basic Unit Communications (Refer to “Communications Specifications” on page 4.)
Port A connector *2
E58-CIFQ1
*1. Port B communications for the End Unit cannot be used when port C communications for the HFU is used.
*2. Port A connector communications and port A terminal communications cannot be used at the same time.
8
EJ1
Unit Configuration Example
Minimal Configuration
Small Systems with 2 Channels or 4 Channels Communicating with the Host Device via RS-485
(CompoWay/F Protocol)
• Alarms can be allocated to the auxiliary output for the End Unit.
• G3ZA/G3PW outputs can be used.
EJ1N-TC4
or
EJ1N-TC2
PWR
RUN
ERR
ALM
EJ1-TC4
EJ1C-EDU
789A
F 012
BCDE
3456
SW1
CX-Thermo for setting
Port A (connector): USB connection can be made
with the E58-CIFQ1 (sold separately).
COM1
COM2
COM3
ON
1 2 3 4 5 6 7 8
PC
Port B: RS-485 (CompoWay/F)
SW2
Host devices
PC
PT
PLC
Multiple Units without an EJ1N-HFU
Building Systems Communicating with the Host Device, such as a PLC, PT, or Computer, via RS-485
(CompoWay/F Protocol)
• The 2 auxiliary alarm outputs provided on the End Unit can be used for integrated alarm systems.
• G3ZA/G3PW outputs can be used.
• Distributed placement is possible by using multiple EJ1C-EDU End Units.
EJ1N-TC4
or
EJ1N-TC2
EJ1-TC4
COM1
COM2
COM3
PWR
RUN
ERR
ALM
Port A (connector): USB connection can be
made with the E58-CIFQ1 (sold separately).
DEF
89ABC
89ABC
EJ1-TC4
COM1
COM2
COM3
34567
SW1
ON
012
34567
ON
CX-Thermo for setting
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
EJ1-TC4
012
SW1
EJ1C-EDU
PWR
RUN
ERR
ALM
DEF
012
89ABC
DEF
SW1
COM1
COM2
COM3
34567
PWR
RUN
ERR
ALM
SW2
PC
Port B: RS-485 (CompoWay/F)
SW2
Host devices
G3ZA
connection
port
READY
READY
SD/RD
SW2
ERROR
G3ZA
SD/RD
SW1
OCC
PLC
READY
SD/RD
SW1
OCC
G3ZA
connection
port
G3ZA
connection
port
SW2
ERROR
G3ZA
SW1
OCC
SW2
PT
PC
ERROR
G3ZA
Multiple Units with an EJ1N-HFU
Using the EJ1N-HFU@-NFL@ to Build a System Communicating 1:1 with a PLC Using Programless
Communications
•
•
•
•
The 2 auxiliary outputs provided on the End Unit can be used.
The 4 event inputs and 4 auxiliary outputs of the HFU can also be used.
G3ZA/G3PW outputs can be used.
Distributed placement is possible by using multiple EJ1C-EDU End Units
RS-232C/RS-485
PWR
RUN
ERR
ALM
SW1
3456
ON
EJ1-TC4
Port A (connector): USB connection can be made
with the E58-CIFQ1 (sold separately).
COM1
COM2
COM3
BCDE
SW1
ON
CX-Thermo for setting
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
EJ1C-EDU
PWR
RUN
ERR
ALM
BCDE
789A
789A
3456
ON
SW2
COM1
COM2
COM3
F 012
SW1
EJ1-TC4
F 012
789A
PWR
RUN
ERR
ALM
F 012
F 012
Note: Port C can be connected
with the commercially
available serial cable.
COM1
COM2
COM3
B CD E
BCDE
SW1
EJ1-TC4
789A
COM1
COM2
COM3
3456
EJ1-HFU
3456
EJ1N-HFU
PWR
RUN
ERR
ALM
PLC
EJ1N-TC4
or
EJ1N-TC2
SW2
Port B
SW2
PC
Port B is used for distributed placement.
Port C
G3ZA
connection
port
G3ZA
connection
port
G3ZA
connection port
READY
READY
SD/RD
READY
SD/RD
SW1
OCC
SW2
ERROR
G3ZA
SD/RD
SW1
OCC
SW2
ERROR
G3ZA
SW1
OCC
SW2
ERROR
G3ZA
9
EJ1
Multiple Units with an EJ1N-HFU
Using the EJ1N-HFU@-NFL@ to Build Systems Communicating 1:1 with a PLC Using Programless
Communications V1.1
•
•
•
•
Up to eight HFUs can be connected to one port on a PLC.
G3ZA/G3PW outputs can be used.
Distributed placement is possible by using multiple EJ1C-EDU End Units.
To connect more than one HFU, specific PLC and EJ1 models must be used.
Refer to “Connecting EJ1 Controllers 1:N to a PLC” on page 13.
SYSMAC (OMRON PLC) RS-485
MELSEC (Mitsubishi Electric PLC) RS-422
EJ1N-TC4
or
EJ1N-TC2
SW1
PWR
RUN
ERR
ALM
CDE
SW1
ON
CX-Thermo for setting
Port A (connector): USB connection can be made with the
E58-CIFQ1 (sold separately).
CDE
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
COM1
COM2
COM3
EJ1-TC4
89 AB
3 4 5 67
ON
SW2
EJ1-TC4
89 AB
3 4 5 67
ON
CDE
COM1
COM2
COM3
F 0 12
89 AB
EJ1-TC4
PWR
RUN
ERR
ALM
F 0 12
SW1
COM1
COM2
COM3
F 0 12
89 AB
EJ1-HFU
CDE
F 0 12
SW1
PWR
RUN
ERR
ALM
COM1
COM2
COM3
3 4 5 67
PWR
RUN
ERR
ALM
PLC
EJ1C-EDU
3 4 5 67
EJ1N-HFU
SW2
PC
Port B
SW2
Port B is used for distributed placement.
Port C
Up to eight HFUs can be connected.
EJ1N-TC4
or
EJ1N-TC2
3 4 5 67
SW1
3 4 5 67
ON
PWR
RUN
ERR
ALM
CDE
SW1
ON
1 2 3 4 5 6 7 8
SW2
COM1
COM2
COM3
EJ1-TC4
CDE
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
COM1
COM2
COM3
EJ1-TC4
89 AB
89 AB
PWR
RUN
ERR
ALM
F 0 12
ON
COM1
COM2
COM3
EJ1-TC4
CDE
F 0 12
SW1
89 AB
PWR
RUN
ERR
ALM
COM1
COM2
COM3
F 0 12
89 AB
EJ1-HFU
CDE
F 0 12
SW1
3 4 5 67
PWR
RUN
ERR
ALM
EJ1C-EDU
3 4 5 67
EJ1N-HFU
SW2
SW2
Port C
Note: Set the EJ1N-TC to a communications unit number that is not being used by the EJ1N-HFU.
Multiple Units with an EJ1N-HFU
Using the EJ1N-HFUB-DRT to Build a System Communicating with a PLC
• Up to 63 DeviceNet slaves can be connected to the DeviceNet Masters in one PLC.
• G3ZA/G3PW outputs can be used.
• Distributed placement is possible by using multiple EJ1C-EDU End Units.
DeviceNet
DeviceNet Configurator
or CX-Integrator
Serial communications
PLC
PWR
RUN
ERR
ALM
COM1
COM2
COM3
PWR
RUN
ERR
ALM
COM1
COM2
COM3
PWR
RUN
ERR
ALM
89ABC
89ABC
EJ1-TC4
COM1
COM2
COM3
DEF
34567
SW1
012
89ABC
EJ1-TC4
DEF
34567
SW1
012
SW1
012
NS
EJ1-TC4
DEF
MS
1
EJ1C-EDU
34567
EJ1N
DRT
10
NODE
ADR
MAX
No.
PC
EJ1N-TC4
or
EJ1N-TC2
EJ1N-HFU
COPY
ON
ON
ON
1 2 3 4 5 6 7 8
SW2
1 2 3 4 5 6 7 8
EDS
UP/DN
TC2/4
MODE
1 2 3 4 5 6 7 8
1 2 3 45 6
TS
NO
SW2
Port B
Port B is used for distributed placement.
SW2
Port C
Up to 63 nodes (including other slaves)
EJ1N-TC4
or
EJ1N-TC2
EJ1-TC4
EJ1C-EDU
PWR
RUN
ERR
ALM
89ABC
89ABC
EJ1-TC4
COM1
COM2
COM3
DEF
DEF
SW1
SW1
012
89ABC
EJ1-TC4
COM1
COM2
COM3
012
34567
MAX
No.
SW1
012
NS
PWR
RUN
ERR
ALM
DEF
MS
1
COM1
COM2
COM3
34567
EJ1N
DRT
10
NODE
ADR
PWR
RUN
ERR
ALM
34567
EJ1N-HFU
ON
ON
SW2
1 2 3 4 5 6 7 8
SW2
ON
1 2 3 4 5 6 7 8
NO
1 2 3 4 5 6 7 8
1 2 3 45 6
TS
COPY
EDS
UP/DN
TC2/4
MODE
SW2
10
EJ1
Connection Precautions
Communications Unit Number Setting
Restrictions for Basic Units
To the host device
PWR
RUN
ERR
ALM
789A
789A
3456
3456
ON
PWR
RUN
ERR
ALM
EJ1-TC4
COM1
COM2
COM3
PWR
RUN
ERR
ALM
3456
3456
3456
789A
789A
COM1
COM2
COM3
PWR
RUN
ERR
ALM
EJ1-TC4
COM1
COM2
COM3
PWR
RUN
ERR
ALM
EJ1-TC4
COM1
COM2
COM3
B C DE
B CD E
SW1
SW1
012
ON
ON
SW2
SW2
1 2 3 4 5 6 7 8
SW2
ON
1 2 3 4 5 6 7 8
3456
SW2
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
EJ1N-TC4
or
EJ1N-TC2
EJ1-TC4
B CD E
SW1
012
ON
SW2
EJ1N-HFU
PWR
RUN
ERR
ALM
COM1
COM2
COM3
012
ON
SW2
1 2 3 4 5 6 7 8
SW2
1 2 3 4 5 6 7 8
SW2
1 2 3 4 5 6 7 8
SW2
EJ1-TC4
BCDE
SW1
Port B
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
ON
PWR
RUN
ERR
ALM
F 012
ON
COM1
COM2
COM3
F 012
ON
F 012
ON
EJ1-TC4
BCDE
SW1
789A
COM1
COM2
COM3
789A
EJ1-TC4
BCDE
789A
PWR
RUN
ERR
ALM
789A
SW1
SW1
Port C
EJ1C-EDU
BCDE
789A
789A
3456
789A
COM1
COM2
COM3
F 012
SW1
F 012
789A
EJ1-TC4
BCDE
F 012
F 012
F 012
789A
PWR
RUN
ERR
ALM
COM1
COM2
COM3
3456
EJ1-TC4
BCDE
SW1
3456
PWR
RUN
ERR
ALM
Port B
SW2
EJ1N-TC4 or EJ1N-TC2
3456
COM1
COM2
COM3
COM1
COM2
COM3
ON
SW2
3456
EJ1-TC4
BCDE
SW1
SW1
ON
3456
PWR
RUN
ERR
ALM
EJ1-TC4
B CD E
3456
COM1
COM2
COM3
PWR
RUN
ERR
ALM
1 2 3 4 5 6 7 8
EJ1-HFU
BCDE
SW1
SW2
To the host device
SW1
COM1
COM2
COM3
1 2 3 4 5 6 7 8
SW2
EJ1-TC4
B CD E
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
PWR
RUN
ERR
ALM
ON
One HFU can manage up to 16 Basic Units
(when using the EJ1N-TC4: 4 channels × 16 Units = 64 channels)
PWR
RUN
ERR
ALM
SW1
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
COM1
COM2
COM3
012
SW1
EJ1-TC4
B CD E
012
ON
PWR
RUN
ERR
ALM
COM1
COM2
COM3
012
SW1
EJ1-TC4
BCDE
F 012
789A
COM1
COM2
COM3
F 012
SW1
EJ1-TC4
BCDE
789A
PWR
RUN
ERR
ALM
789A
COM1
COM2
COM3
789A
EJ1-TC4
BCDE
3456
PWR
RUN
ERR
ALM
F 012
• One EJ1N-HFU can manage up to 32 Basic Units (EJ1N-TC4/
TC2).
• Up to 16 Units can be connected side by side including the EJ1NHFU. The End Unit is not included in the 16 Units.
• To use the CX-Thermo Support Software from a computer to set
EJ1N-TC4/EJ1N-TC2 Basic Units that are connected with
distributed placement, use a communications cable to connect port
A (on the terminal block) on both Units.
3456
Restrictions for HFUs
3456
Restrictions on the Number of Units That Can Be
Connected
• When the system is configured of only Basic Units (EJ1N-TC4/
TC2), up to 64 Units can be connected.
• Distributed placement is possible by using End Units (EJ1C-EDU).
• Up to 16 Units can be connected side by side. The End Unit is not
included in the 16 Units.
• To use the CX-Thermo Support Software from a computer to set
EJ1N-TC4/EJ1N-TC2 Basic Units that are connected with
distributed placement, use a communications cable to connect port
A (on the terminal block) on both Units.
3456
• You can set communications unit numbers 0 to 7 for HFUs. With
V1.2 , you can also set communications unit numbers 32 to 39.
• You can set communications unit numbers 0 to 63 for Basic Units
unless connected to an HFU, in which case you can set
communications unit numbers 0 to 31.
Port B
SW2
EJ1C-EDU
EJ1C-EDU
EJ1N-TC4 or EJ1N-TC2
Up to 16 Units can be connected side by side.
Note: End Units are not included in the number
of Units that can be connected.
PWR
RUN
ERR
ALM
EJ1-TC4
Up to 64 Basic Units can be connected using distributed placement.
Using EJ1@-TC4 models: 4 channels × 64 Units = 256 channels
Using EJ1@-TC2 models: 2 channels × 64 Units = 128 channels
Note: End Units are not included in the number of Units that can be connected.
COM1
COM2
COM3
789A
F 012
BCDE
3456
SW1
Port B
ON
Wiring for Distributed Placement
1 2 3 4 5 6 7 8
SW2
EJ1-TC4
COM1
COM2
COM3
PWR
RUN
ERR
ALM
789A
ON
COM1
COM2
COM3
1
2
3
4
5
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Restrictions When Connecting with the G3ZA
• Up to 8 G3ZA Multi-channel Power Controllers can be connected
to one Basic Unit (EJ1N-TC4/TC2).
3456
EJ1C-EDU
SW1
F 012
EJ1N-TC4 or
EJ1N-TC2
EJ1-TC4
BCDE
F 012
789A
BCDE
SW1
3456
PWR
RUN
ERR
ALM
SW2
6
7
8
9
SW2
Host
devices
Port A
FG
Port B
24 VDC
EJ1N-TC4 or EJ1N-TC2
EJ1C-EDU
PWR
RUN
ERR
ALM
EJ1-TC4
COM1
COM2
COM3
789A
F 012
BCDE
3456
PWR
RUN
ERR
ALM
ON
COM1
COM2
COM3
PWR
RUN
ERR
ALM
789A
F 012
789A
EJ1-TC4
COM1
COM2
COM3
BCDE
SW1
F 012
1 2 3 4 5 6 7 8
EJ1-TC4
BCDE
3456
SW1
3456
SW1
SW2
1
Port A
2
ON
ON
SW2
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
G3ZA connection port
SW2
5
6
READY
SD/RD
ERROR
READY
SD/RD
SW1
OCC
SW2
ERROR
SW2
SD/RD
SW1
OCC
RS-485
24 VDC
READY
SD/RD
SW1
OCC
Port B
7
8
9
READY
RS-485
3
4
SW2
ERROR
SW1
OCC
SW2
ERROR
Note: To use the CX-Thermo Support Software from a computer to
set EJ1N-TC4/EJ1N-TC2 Basic Units that are connected with
distributed placement, use a communications cable to connect
port A (terminals 1 and 2 on the terminal block) on both Units.
G3ZA
Up to 8 G3ZA Power Controllers can be connected to one Basic Unit.
11
EJ1
Restrictions on Unit Placement
Always connect the HFU on the left side of the Basic Unit.
EJ1-TC4
COM1
COM2
COM3
PWR
RUN
ERR
ALM
8 9A B
34567
SW1
COM1
COM2
COM3
ON
012
012
8 9A B
EJ1-HFU
CDEF
CDEF
SW1
34567
PWR
RUN
ERR
ALM
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
SW2
EJ1N-TC4 or
EJ1N-TC2
EJ1N-HFU
Insulation Blocks
Each EJ1 Unit is electrically insulated for each function block as shown in the following figures.
Functional insulation is applied between the power supply, input, output, and communications terminal sections.
If reinforced double insulation is required, use power supplies that comply with IEC60664 for reinforced double insulation for the EJ1's external
power supply and for power supplies connected to the EJ1.
EJ1N-TC2
EJ1N-TC4
Input 1
Power
supply
EJ1N-HFU@-NFL@
Event inputs 1 to 4
Input 1
Input 2
Input 2
Event inputs 1 and 2, CT1 and 2 *
Input 3
Power
supply
Communications (Port A, port B, G3ZA)
Transistor outputs 3 and 4
Power
supply
Transistor outputs 1 to 4
Communications (Port B, port C)
Input 4
Functional isolation
EJ1C-EDU
Voltage outputs 1 to 4
Communications (Port A, Port B, G3ZA)
Voltage outputs 1 and 2/Current outputs 1 and 2
Transistor outputs 1 and 2
Power
supply
Functional isolation
Functional isolation
* Not provided on models with current outputs.
Communications (Port A, port B)
Functional isolation
Programless Communications
Communications with PLCs from OMRON (CS/CJ/CP/NJ Series) and Mitsubishi Electric (MELSEC-Q/QnA/QnAS/An/Ans/FX3UC Series) can be
performed without creating ladder programming.
Using programless communications enables monitoring and changing settings for the EJ1 by simply reading and writing to PLC memory.
The EJ1 automatically performs communications with the PLC, which reduces work hours spent programming for communications from the PLC to the EJ1.
PLC
Monitor
Monitoring can be
performed for the
EJ1 and the settings
can be changed by
simply reading and
writing to memory.
The read monitor value is
written to the PLC memory.
PV
Manipulated variable
Status
Setting
The EJ1N-HFU automatically
performs communications
with the PLC.
SP
Alarm value 1
Alarm value 2
The EJ1N-HFU reads the value
written to the PLC memory.
EJ1N-HFU
PV
The EJ1N-HFU reads the monitor
value for the EJ1N-TC4/TC2.
EJ1N-TC4/TC2
PV
Manipulated variable
Manipulated variable
Status
Status
SP
SP
Alarm value 1
Alarm value 1
Alarm value 2
The read setting is written to the
setting for the EJ1N-TC4/TC2.
Alarm value 2
Connectable Devices
Connecting an EJ1 Controller 1:1 to a PLC
CS/CJ/CP/NJ Series
Name
Serial Communications Units *1
Serial Communications Boards
CPU Units
Communications ports
Model No.
CJ1W-SCU21-V1
CJ1W-SCU22
CJ1W-SCU31-V1
CJ1W-SCU32
CJ1W-SCU41-V1
CJ1W-SCU42
CS1W-SCU21-V1 *2
CS1W-SCU31-V1
CS1W-SCB21-V1 *2
CS1W-SCB41-V1 *2
CJ Series
CS Series
CP Series
Port 1
Port 2
RS-232C
RS-232C
RS-422A/485
RS-422A/485
RS-422A/485
RS-232C
RS-232C
RS-232C
RS-422A/485
RS-422A/485
RS-232C
RS-232C
RS-232C
RS-422A/485
--RS-232C
--RS-232C
RS-232C or RS-422A/485 can be used by adding an Option Board.
*1. Only the [email protected] Serial Communications Unit can be used to connect to an NJ-series Controller.
*2. Use only products manufactured on or after December 20, 1999.
For details, refer to the CS/CJ Series, Serial Communications Boards/Units Operation Manual (Cat. No. W336).
12
EJ1
MELSEC-Q/QnA/QnAS Series
Name
Q-compatible Serial Communications Unit
QnA-compatible Serial
Communications Unit
QnAS-compatible Serial
Communications Unit
Communications ports
Model No.
Channel 1
Channel 2
QJ71C24N
QJ71C24
RS-232C
RS-422/485
QJ71C24N-R2
QJ71C24-R2
RS-232C
RS-232C
QJ71C24N-R4
RS-422/485
RS-422/485
AJ71QC24N
RS-232C
RS-422/485
AJ71QC24N-R2
RS-232C
RS-232C
AJ71QC24N-R4
RS-422
RS-422/485
A1SJ71QC24N
RS-232C
RS-422/485
A1SJ71QC24N-R2
RS-232C
RS-232C
Note: 1. Refer to the Mitsubishi Electric PLC documentation for information on MELSEC PLCs.
2. More than one EJ1 Controller to one PLC is not possible even with RS-422 communications. Refer to Connecting EJ1 Controllers 1:N
to a PLC, below, for product combinations that support 1:N connections.
3. Connection ability has been verified for the above MELSEC models. Design changes and other factors, however, may prevent normal
connection. Always confirm operation in advance.
MELSEC-An/AnS Series V1.1
Name
An-compatible Computer Link Unit
AnS-compatible Computer Link Unit
Model No.
Communications ports
AJ71UC24
RS-232C or RS-422/485
A1SJ71UC24-R2
RS-232C
A1SJ71UC24-R4
RS-422/485
A1SJ71UC24-PRF
RS-232C
Note: Use a MELSEC-AnA/AnU CPU.
MELSEC-FX3UC Series V1.1
Name
Communications Adapter
Function Board
Model No.
Communications ports
FX3U-232ADP
RS-232C
FX3U-485ADP
RS-485
FX3U-232-BD
RS-232C
FX3U-485-BD
RS-485
Connecting EJ1 Controllers 1:N to a PLC V1.1
The combinations of PLCs and HFUs that can be connected 1:N are listed below.
CS/CJ/CP/NJ Series
Name
Model No.
Communications ports
CJ1W-SCU31-V1
Serial Communications Units *1
Port 1 or 2
CJ1W-SCU41-V1
Port 1
CS1W-SCU31-V1
Port 1 or 2
Serial Communications Board
CS1W-SCB41-V1 *2
Port 2
CPU Units
CP Series
RS-422A/485 can be used by adding an Option Board.
EJ1N-HFU
EJ1N-HFUA-NFLK
EJ1N-HFUB-NFLK
Port C
*1. Only the [email protected] Serial Communications Unit can be used to connect to an NJ-series Controller.
*2. Use only products manufactured on or after December 20, 1999.
For details, refer to the CS/CJ Series, Serial Communications Boards/Units Operation Manual (Cat. No. W336).
MELSEC-Q/QnA/QnAS Series
Name
Model No.
Serial Communications Units
Channel 2 of QJ71C24N
QJ71C24N-R4
Channel 2 of A1SJ71QC24N
Channel 2 of AJ71QC24N
AJ71QC24N-R4
EJ1N-HFU
EJ1N-HFUA-NFL2
EJ1N-HFUB-NFL2
Note: Refer to the Mitsubishi Electric PLC documentation for information on MELSEC PLCs.
13
EJ1
Connection
External Connection
• Functional insulation is applied between the power supply and the I/O sections. If reinforced insulation is required, connect the input and output
terminals to devices without any exposed current-carrying parts or to devices with reinforced insulation suitable for the maximum operating
voltage of the power supply and I/O sections.
• To comply with the standards for noise terminal voltage for class A in EN 61326, install a noise filter (Densei Lamda MXB-1206-33 or the
equivalent) to the DC power line as close as possible to the Temperature Controller.
• Use an SELV power supply that provides overcurrent protection. An SELV circuit is one separated from the power supply with double insulation
or reinforced insulation, that does exceed an output voltage of 30 V r.m.s. and 42.4 V peak or 60 VDC max. The OMROM S8VM or S8VS Series
is recommended for the power supply.
EJ1N-TC4
EJ1N-TC2
OUT2
12 VDC
B1
A1
OUT1
B2
12 VDC
B3
A2
Models with
linear outputs
OUT4
12 VDC
B
V
B
A
A4 CH4
B5
A5
B6
A
B
V
B
CH1 B7
A7 CH3
B8
A8
B9
Pt
Thermocouple
OUT4
A1
A2
OUT3
A3
B
mA
B
V
A
mA
B
V
B
CH2 B4
A4
B5
EV2
A5
B6
A
A9
Analog
input
B1
OUT1
B2
12 VDC
B3
OUT1
4 to 20 mA DC/0 to 20 mA
CH2 B4
A6
mA
OUT2
12 VDC
OUT2
4 to 20 mA DC/0 to 20 mA
OUT3
12 VDC
A3
A
mA
Models with
pulse outputs
EV1
A6
B
mA
B
V
A
mA
CH1 B7
A7
B
V
B8
A8
B
B9
CT2
CT1
A9
CN1 G3ZA connection port
Analog
input
EJ1N-HFU@-NFL@
Pt
Thermocouple
Not provided
on models
with linear
output.
Provided only
on models
with pulse
output.
CN1 G3ZA connection port
EJ1N-HFUB-DRT
DeviceNet Connector
B1
A1
B2
SUB4
EV4
A2
SUB3
B3
V+
EV3
Power line
A3
B4
A4
B6
RDB (+)
B (+)
RDA (−)
A (−)
EV2
A5
SUB1
Communications line, high
EV1
Shield
A6
B7
A7
B8
Port C
A8
Not used Not used B9
RS-422
CAN H
B5
SUB2
A9
RS-485
SD SDB (+)
RD SDA (−)
SG
RS-232C
CAN L
Port C
Not used
V−
Communications line, low
Power line
RS-422
RS-485 for port C and RS-232C can be switched.
A separate EJ1 model must be used for
RS-422 communications.
EJ1C-EDUA
EJ1C-EDUC
Model with Screw Terminals
Model with Connector Terminal Block
Port A connector
B (+)
Port A
RS-485
A (−)
Port A connector
1
These two ports
cannot be used at
the same time.
2
Port A
B (+)
RS-485
A (−)
3
SUB2
These two ports
cannot be used at
the same time.
2
3
4
SUB1
SUB2
5
Port B B (+)
6
RS-485
7
A (−)
+
8
24 VDC
− 9
Input power supply
1
4
These terminals are
used for distributed
placement of Units
when an HFU is used.
5
SUB1
6
Port B
B (+)
7
RS-485
A (−)
+
8
These terminals are
used for distributed
placement of Units
when an HFU is used.
9
24 VDC
−
Input power supply
10
Note: 1. To connect to the G3ZA, separately purchase a G3ZA Connecting Cable (EJ1C-CBLA050) and connect it to the G3ZA connection port
(CN1) on the EJ1.
2. To connect to a computer using the port A connector, use a separately sold E58-CIFQ1 USB-Serial Conversion Cable. The Temperature
Controller can be connected to a computer using USB.
3. Models with screw-less clamp terminals have terminals A10 and B10, but they are not used. Do not connect anything to them.
14
EJ1
Nomenclature and Specification Settings
Part Names
Operation Indicators
PWR
RUN
ERR
ALM
EJ1N-TC2/TC4
COM1
COM2
COM3
EJ1N-TC
Operation
Indicators
COM1
COM2
COM3
BCD
789 A
OPN
E F 012
Operation
Indicators
PWR 1
RUN 2
ERR 3
ALM 4
SW1
1
2
3
4 OUT
345 6
SW1
Operation Indicators
ON
OUT
OPN
6
1 2 3 4 5 6 7 8
SW2
SW2
Meaning: When SW2
No. 6 is OFF
Meaning: When SW2
No. 6 is ON V1.2
PWR/1 V1.2
green
Lights when the power is ON. Lit when output 1 is ON.
RUN/2 V1.2
green
Lights during operation. Lit when output 2 is ON.
ERR/3 V1.2
red
Flashes or lights when
an error occurs.
Lit when output 3 is ON.
ALM/4 V1.2
red
Lights when an alarm is
activated.
Lit when output 4 is ON.
COM 1
orange
Flashes during communications via port A on the End Unit.
COM 2
orange
Flashes during communications via port B on the End Unit.
COM 3
orange
Flashes during communications with the G3ZA.
EJ1N-HFU@-NFL@
Meaning
Operation Indicators
PWR
green
Lit while the power is ON. *
RUN
green
---
ERR
red
Flashes or lights when an error occurs.
ALM
red
Lights when an alarm is activated.
orange
Flashes during communications via port A
on the End Unit.
orange
Flashes when the EJ1 system is in operation.
COM 1
COM 2
orange
COM 3
Flashes during communications via port C.
* Some time is required for the indicators to light after the power is turned ON.
Specification Settings
Switch Operation
SW2 Settings
• Check that the EJ1 is turned OFF before operating any switch
other than pin 6 of SW2. Settings are read only when power is
turned ON.
• Set the switches with a small flat-blade screwdriver. Do not set the
switches midway between settings.
• SW1 is set to 1 and SW2 pins are all set to OFF in the default
settings.
SW1
SW2
ON
BCDE
3
SW2
Meaning
V1.2
Set to ON when using the Modbus communications protocol for port B.
OFF: The setting value for port B communications protocol is used.
(default: Compoway/F) *
ON: Modbus is used.
4 to 5
3456
F 012
EJ1N-TC2/TC4
1 2 3 4 5 6 7 8
V1.2
789 A
Setting the Unit Number
SW1 and SW2 are used together to set the unit number to between
00 and 63. The factory setting is unit number 01.
SW2
1
2
V1.2
SW1
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
OFF OFF
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
ON
OFF
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
OFF ON
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
ON
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
ON
6
Set the baud rate of port B.
4 = OFF, 5 = OFF: The setting value for port B baud rate is used.
(default: 9.6 kbps) *
4 = ON, 5 = OFF: 19.2 kbps
4 = OFF, 5 = ON: 38.4 kbps
4 = ON, 5 = ON: 115.2 kbps
Set to ON to display the output status on the operation indicators.
OFF: The operation status is displayed (PWR, RUN,
ERR, and ALM).
ON: The output status is displayed (outputs 1, 2, 3, and 4).
Note: Normally keep this pin set to OFF so that the
operation status can be checked.
ON: G3ZA Multi-channel Power Controller in operation
ON when using a G3PW Power Controller. V1.1
7
Use when EJ1N-HFU HFUs with Programless Communications
are used for distributed placement of Temperature Controllers.
OFF: Distributed placement not used. Or, HFUs with DeviceNet
8
Communications used for distributed placement.
ON: HFUs with Programless Communications used for
distributed placement.
* Refer to the User's Manual (Cat. No. H142) for details.
Note: Make sure power to the Unit is turned OFF before making
settings for any pin other than pin 6.
Pin 6 can be turned ON or OFF while the power is ON.
EJ1N-HFU@-NFL@
SW2
3 to 7
8
Meaning
Not used (OFF)
• EJ1N-HFU@-NFLK
OFF: RS-485 is selected.
ON: RS-232C is selected.
• EJ1N-HFU@-NFL2
OFF (Not used.)
15
EJ1
Part Names (EJ1N-HFUB-DRT)
Operation Indicators
9 01
78
x 10
SW1
456
23
9 01
x1
456
NODE
ADR 2 3
EJ1N-HFUB-DRT
EJ1N
DRT
Operation Indicators
MS
78
NS
EF012
345
6789
1 2 3 4 5 6
ABCD
MAX
No.
SW2
SW3
NO
TS
MS
Module
status
Green
Red
ON: Fatal error
Flashing: Non-fatal error
NS
Network
status
Green
ON: Communications established
Flashing: Communications not
established
Red
ON: Fatal communications error
Flashing: Non-fatal communications error
COPY
EDS
UP/DN
TC2/4
MODE
Meaning
ON: The Unit condition is normal.
Flashing: The connection configuration
has not been set.
Indicators
TS
Green
Temperature
Controller
communicat
ions status
Red
ON: Communicating with the
Temperature Controllers
Flashing: The copy operation is being
performed.
Flashing: Communications error with a
Temperature Controller
Flashing: The copy operation failed.
Specification Settings
Switch Operation
SW3 Settings
• Always turn OFF the DeviceNet communications power supply and
EDU power supply before setting the Unit. *
• Set the switches with a small flat-blade screwdriver. Do not set the
switches midway between settings.
• The SW1 switches are set to 00, SW2 is set to 0, and SW3 pins are
all set to OFF in the default settings.
* The setting of pin 3 on SW3 can be changed while the power is ON.
DIP switch
6 (COPY)
---
5
---
Not used.
OFF
Use the OMRON Configurator.
ON
Use universal Configurator. (EDS files
supported)
OFF
Upload (from Temperature Controller to
DeviceNet Communications Unit)
ON
Download (from DeviceNet
Communications Unit to Temperature
Controller)
4 (EDS)
SW1 Settings
Use these switches to set the node address as a slave in the
DeviceNet network between 00 and 63 decimal (node addresses 64
to 99 cannot be used).
3 (UP/DN)
456
OFF
Simple allocation to TC2 Units.
23
ON
Simple allocation to TC4 Units.
78
OFF
I/O Allocation from the Configurator.
ON
Simple I/O Allocation
78
9 01
DeviceNet node
address setting
2 (TC2/4)
456
NODE
ADR
x1
9 01
23
x 10
Meaning
Upload/Download
OFF → ON (1 s min., 5 s max.) → OFF
1 (MODE)
Use this switch to set the highest communications unit number (0 to
F: 0 to 15 decimal) of the connected Temperature Controllers. This
setting is enabled only when DIP switch pin 1 is set to ON (simple I/O
allocations).
EF012
345
6789
ABCD
MAX
No.
Highest communications
unit number
1 2 3 45 6
SW2 Settings
NO
16
EJ1
Functional Upgrades
V1.1
V1.2
Functions depend on the version that you are using. The functional upgrades are given below. Refer to the User's Manual (Cat. No. H142) for
details.
Version
V1.1
V1.2
• Modbus communications can be used on port B.
The corresponding parameters are those for
variable types C4/84, C5/85, and D0/90 to D6/96.
• Software version 2 of the G3ZA Multi-channel Power
Controller can be used.
• Autotuning is provided for heating/cooling control.
• Self-tuning has been added.
• A switch can be used to display the output status on
the operation indicators during operation.
• Modbus communications can be used to read and
write all parameters, and to execute any of the
operation commands.
• A switch setting can be changed to use Modbus
communications on port B.
• A switch setting can be used to set the baud rate of
port B.
• A C0/80 status has been added to the variable types.
• Up to eight G3PW Power Controllers can be
connected to one Basic Unit.
Applicable Unit
Basic Units
(EJ1N-TC2/TC4)
Note: 1. When more than one G3ZA Multi-channel
Power Controller is connected, version 1 and
version 2 can be mixed. (Up to 8 G3ZA Multichannel Power Controllers can be
connected.)
2. Software version 2 of G3ZA Multi-channel
Power Controller can also be used with EJ1
version1.0.
Note: 1. The G3PW can be connected to EJ1 V1.1.
2. The G3PW and G3ZA cannot be used
together.
Advanced Unit
(EJ1N-HFU@-NFL@)
Support Software
• Programless communications can be used with 1: N
connections.
• The maximum number of parameters that can be
specified for programless upload/download settings
has been increased from 300 to 600 each.
• Connection is now possible to MELSEC-QnA/An/
AnS/FX3uc-series PLCs.
• A new setting read operation has been added to
programless communications: Setting Read 2.
• The speed of programless communications has
been increased.
• Either "continue" or "stop" can be selected for when
errors occur in programless communications.
CX-Thermo version 3.20 or higher
• Bit specification operation commands have been
added to the parameters that can be specified for
programless download settings. This simplifies the
program when operation commands are executed.
• The G3ZA or G3PW Monitor parameter has been
added to the parameters that can be specified for
programless upload settings. Up to four G3ZA Multichannel Power Controllers or up to four G3PW
Power Controllers can be connected to one Basic
Unit.
• The maximum number of parameters that can be
specified for programless upload/download setting
has been increased from 600 to 1200 each.
• The maximum number of Basic Units that an HFU
with Programless Communications can control has
been increased from 16 to 32 Units.
• Communications unit numbers 32 to 39 can be used
in the HFU via programless communications.
This allows the communications unit numbers of
Basic Units connected to an HFU to be numbered
sequentially, making it easy to copy HFU and Basic
Unit settings to other HFUs and Basic Units.
CX-Thermo version 4.1 or higher
Identifying Upgraded Models
The new functionality can be used with version 1.2 (V1.2). Check the label on the Temperature Controller or the box to determine the version.
Models not marked "Ver. 1.1" are version 1.0.
Box Label
Temperature Controller Label
Version
Version
Note: The above example is for version 1.2.
17
EJ1
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Temperature Controller
Basic Units
EJ1N-TC
31
PWR 1
RUN 2
ERR 3
ALM 4 OUT
EJ1N-TC
COM1
COM2
COM3
PWR 1
RUN 2
ERR 3
ALM 4 OUT
789A
F012
3456
SW1
27.0
ON
OUT
OPN
6
SW2
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
OUT
OPN
COM1
COM2
COM3
SW1
ON
6
EJ1N-TC
BC DE
OPN
F0 12
BC DE
OPN
3456
EJ1N-HFU@-NFL@
789A
HFUs
109 (Models with screw terminal blocks)
104.85 (Models with screw-less clamp
terminal blocks)
31
95.4
35.4
90
SW2
27.6
Models with screw
terminal blocks
Models with screw-less
clamp terminal blocks
HFUs
29
24
20
EJ1N-HFUB-DRT
9 01
456
23
78
10
9 01
1
456
NODE
ADR 23
78
EF012
123456
ABCD
90
65
EJ1N
DRT
MS
NS
345
6789
MAX
No.
82.2
NO
TS
COPY
EDS
UP/DN
TC2/4
MODE
90
76.2 (Model with Screw Terminals)
79.7 (Model with Connector Terminal Block)
End Units
EJ1C-EDU
15.7
60
15.7
27.0
95.4 90
35.4
27.6
EDUA
Model with
Screw Terminals
EDUC
Model with
Connector Terminal Block
18
EJ1
Options
Current Transformer (Sold Separately)
E54-CT1
21
2.8
15
5.8 dia.
7.5
25
3
10.5
40
Two, 3.5 dia.
10
30
E54-CT3
2.36 dia.
30
12 dia.
9
40@
Two, M3 (depth: 4)
15
30
E54-CT3 Accessory
• Armature
Connection Example
Armature
Approx. 3 dia.
Plug
Lead
18
• Plug
Approx. 6 dia.
(22)
Rail Mounting Equipment (Order Separately)
DIN Rail
PFP-100N
PFP-50N
7.3±0.15
4.5
35±0.3
15
End Plate
25
10
25
25
1000 (500) *
10
25
15 (5) *
27±0.15
1
* The figures in parentheses are
dimensions for the PFP-50N.
10
PFP-M
6.2
M4 × 8
panhead
screw
50
1.8
1
35.5 35.3
1.8
11.5
10
M4 spring washer
1.3
4.8
Note: Two screws are included with the EJ1C-EDU for the End Plate.
Always attach End Plates to both sides.
19
EJ1
Safety Precautions
!CAUTION
Do not touch the terminals while power is being supplied.
Doing so may occasionally result in minor injury due to
electric shock.
Use a power supply that complies with the reinforced
insulation specified in IEC 60664 for the EJ1 external
power supply or the power supply connected to the EJ1.
If non-compliant power supplies are used, electric shock
may occasionally result in minor injury.
Do not allow pieces of metal, wire clippings, or fine
metallic shavings or filings from installation to enter the
product. Doing so may occasionally result in electric
shock, fire, or malfunction.
Do not use the product where subject to flammable or
explosive gas. Otherwise, minor injury from explosion
may occasionally occur.
Never disassemble, modify, or repair the product or
touch any of the internal parts. Minor electric shock, fire,
or malfunction may occasionally occur.
Tighten the terminal screws to between 0.40 and
0.56 N·m. Loose screws may occasionally result in fire.
Set the parameters of the product so that they are
suitable for the system being controlled. If they are not
suitable, unexpected operation may occasionally result
in property damage or accidents.
A malfunction in the product may occasionally make
control operations impossible or prevent alarm outputs,
resulting in property damage. To maintain safety in the
event of malfunction of the product, take appropriate
safety measures, such as installing a monitoring device
on a separate line.
Precautions for Safe Use
Observe the following points to ensure safe operation.
1. The product is designed for indoor use only. Do not use the
product outdoors or in any of the following locations.
• Places directly subject to heat radiated from heating equipment
• Places subject to splashing liquid or oil atmosphere
• Places subject to direct sunlight
• Places subject to dust or corrosive gas (in particular, sulfide gas
or ammonia gas)
• Places subject to intense temperature change
• Places subject to icing or condensation
• Places subject to vibration or strong shocks
2. Use and store the product within the rated temperature and
humidity ranges. Provide forced-cooling if required.
3. To allow heat to escape, do not block the area around the product.
Do not block the ventilation holes on the product.
4. Be sure to wire properly with correct polarity of terminals.
5. Use specified size (M3, width 5.8 mm or less) crimped terminals
for wiring. To connect bare wires to the terminal block, use copper
braided or solid wires with a gage of AWG22 to AWG14 (equal to
cross-sectional area of 0.326 to 2.081 mm2) for power supply lines
and a gage of AWG28 to AWG16 (equal to cross-sectional area of
0.081 to 1.309 mm2). (The stripping length is 6 to 8 mm.)
6. Do not wire terminals that do not have an identified use.
7. Allow as much space as possible between the product and
devices that generate a powerful high-frequency or surge.
Separate the high-voltage or large-current power lines from other
lines, and avoid parallel or common wiring with the power lines
when you are wiring to the terminals.
8. Use the product within the rated load and power supply.
9. Make sure that the rated voltage is attained within two seconds of
turning ON the power.
10.It takes 30 minutes from the time the Temperature Controller is
turned ON until the current temperature is displayed. Always turns
ON the power supply at least 30 minutes before starting
temperature control.
11.The switch or circuit breaker must be within easy reach of the
operator, and must be marked as a disconnecting means for this
unit.
12.Do not use paint thinner or similar chemical to clean with. Use
standard grade alcohol.
13.Design the system (e.g., the control panel) allowing leeway for the
delay required before product outputs are valid after turning ON
power to the product.
14.Never touch the electronic components, connectors, or patterns
on product boards with your bare hands. Always hold the product
by the case. Inappropriately handling the product may
occasionally damage internal components due to static electricity.
15.Use a switch, relay, or other device with contacts to turn OFF the
power supply quickly. Gradually lowering the voltage of the power
supply may result in incorrect outputs or memory errors.
16.Do not touch the electronic components with your hands or subject
them to shock when removing the terminal block.
17.Connect only the specified number of products in only a specified
configuration.
18.Mount the product to a DIN Rail mounted vertically to the ground.
19.Always turn OFF the power supply before wiring the product,
replacing the product, or changing the product configuration.
20.Attach the enclosed cover seal to the connector opening on the left
end product during installation.
21.Do not use port B on the end product when using port C on HFUs.
22.Install the product only after reading the manual provided with the
End Unit.
20
EJ1
Precautions for Correct Use
Installation
Installation
1.
2.
3.
4.
5.
Connecting Units
1. Align the connectors and connect the Units to each other. Connect
an End Unit to the Unit on the right end.
Do not connect the End Unit directly to an HFU.
Connect the End Unit to the right side of a Basic Unit.
Connect the HFU to the left side of the Basic Units.
The Temperature Controller cannot be used as a CJ-series Unit.
Use the EJ1G-@@ for gradient temperature control. When not
using gradient temperature control, use the EJ1N-@@.
6. When removing the terminal block to replace a Unit, be sure that
the new Unit is the same as the Unit that is being replaced.
Service Life
1. Use the product within the following temperature and humidity
ranges:
Temperature: −10°C to 55°C (with no condensation or icing)
Humidity:
25% to 85%
When the Temperature Controller is incorporated in a control
panel, make sure that the controller's ambient temperature and not
the panel's ambient temperature does not exceed 55°C.
2. The service life of electronic devices like Temperature Controllers
is determined not only by the number of times the relay is switched
but also by the service life of internal electronic components.
Component service life is affected by the ambient temperature: the
higher the temperature, the shorter the service life and the lower
the temperature, the longer the service life. Therefore, the service
life can be extended by lowering the temperature of the
Temperature Controller.
3. Mounting two or more Temperature Controllers side by side, or
mounting Temperature Controllers above each other may cause
heat to build up inside the Temperature Controllers, which will
shorten their service life. If the Temperature Controllers are
mounted above each other or side by side, use forced cooling by
fans or other means of air ventilation to cool down the
Temperature Controllers.
However, be sure not to cool only the terminals. Doing so will
result in measurement errors.
Note: 1. Do not connect the End Unit directly to an HFU.
2. Connect the End Unit to the right side of a Basic Unit.
2. Slide the yellow sliders on the top and bottom of the Units until they
click into place.
Lock
Slider
3. Attach the cover seal to the connector opening on the Unit on the
left end of the EJ1.
Ensuring Measurement Accuracy
1. When extending or connecting the thermocouple lead wire, be sure to
use compensating wires that match the thermocouple types.
2. When extending or connecting the lead wire of the platinum resistance
thermometer, be sure to use wires that have low resistance and keep
the resistance of the three lead wires the same.
3. Mount the Temperature Controller so that it is horizontally level.
4. If the measurement accuracy is low, check to see if input shift has
been set correctly.
Cover Seal
Removing the Terminal Block
1. Press down the terminal block lever.
Precautions for Operation
1. A certain amount of time is required for the outputs to turn ON from
the time the power supply is turned ON. Due consideration must
be given to this time when incorporating Temperature Controllers
in a sequence circuit.
2. It takes 30 minutes from the time the Temperature Controller is turned
ON until the current temperature is displayed. Always turns ON the
power supply at least 30 minutes before starting temperature control.
3. Avoid using the Temperature Controller near a radio, television set, or
other wireless device. Its use would result in reception disturbance.
Lower the lever.
2. Pull out the terminal block.
Pull out.
Wiring Screw-Less Clamp Terminals
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
A1
A2
A3
A4
A5
A6
A7
There are two holes for each terminal. The
hole on the right is the operation hole and the
hole on the left is the wire hole.
Insert a flat-blade screwdriver with a width of
2.5 mm into the operation hole, insert the wire
into the wire hole, and then remove the
screwdriver. The wire will be clamped.
Use pin terminals that are suitable for the
cross-sectional area of the wire.
Recommended pin terminals:
Weidmuller H-sleeve series
A8
A9
A10
21
EJ1
Connecting to the G3ZA (EJ1N-TC)
Mounting to the DIN Rail
Mounting
Catch the hook located on the top of the Unit onto the DIN Rail and
press the Unit until the Unit locks into place.
(2) Catch the upper hook
onto the DIN Rail.
CN1
READY
SD/RD
SW1
OCC
SW2
CN1
ERROR
(3) Press in
on the
Unit.
(4) Make sure the Unit
is locked into place.
(1) Lower the hooks.
Dismounting
Pull down on the hook with a flat-blade screwdriver and lift up on the
Unit.
Connect the G3ZA
Connecting Cable to the
CN1 connector on the
bottom of the TC Unit.
G3ZA
Connect the black line with a
white stripe to terminal 7 on the
G3ZA and the black line with no
stripe to terminal 8.
EJ1C-CBLA050 (Sold Separately)
(cable length: 5 m)
Flat-blade Screwdriver
Mount one End Plate to each side of the EJ1C-EDU (PFP-M End
Plates are included with the End Unit).
Refer to the “G3ZA Instruction Manual” for wiring methods.
Connecting to the G3PW (EJ1N-TC)
ADJ
%(IN)
%(DUTY)
%(OUT)
%(PHASE)
A
COMM
SET EV
LVL
ENT
RST
G3PW
3
4
5
6
Install the DIN Rail vertically to the ground.
Correct
B(+)
RS-485
A(-)
1
2
PFP-M
REMOTE SET
DUTY SET
7
8
9
Incorrect
10
11
12
13
14
1
2
+
+
ALARM1(NPN)
+
ALARM2(NPN)
EVENT
RESET
3
+
-
1-5V
-
4
5
100-240VAC
4-20mA
See
Manual
Set the baud rate to 57.6 kbps
(default value) using key
operations. For details, refer to
the G3PW Operation Manual.
N
N
L
T1
L1
L
Time-lag fuse
Vertically
Horizontally
Load
Fast-acting fuse
Applicable DIN Rail (sold separately): PFP-100N (100 cm),
PFP-50N (50 cm)
Connect the black line with a white stripe to terminal 1 on
the G3PW and the black line with no stripe to terminal 2.
EJ1C-CBLA050 (order separately) (cable length: 5 m)
Refer to the G3PW Instruction Manual for wiring methods.
Refer to the following manual for precautionary information and other information necessary to use the EJ1:
EJ1 Modular Temperature Controller User’s Manual (Cat. No. H142)
22
EJ1
I/O Devices
Examples of EJ1-series Temperature Controllers/Output Devices
Input device/sensor
Temperature controller
SSR
Load
Heater
Voltage output
INPUT
terminal
Load
power
supply
LOAD
(for driving SSR)
Can be directly
connected.
Analog quantities, such as temperature,
flow rate, and concentration
Number of SSRs That Can
be Connected in Parallel
EJ1
Converters, Digital Panel Meters, Flow Meters,
Infrared Thermosensors, Displacement Sensors
4
EJ1N-TC2@-QNHB
EJ1-TC2
PWR
RUN
ERR
ALM
COM1
COM2
COM3
EJ1-TC2
78 9 A
345 6
SW1
ON
Built-in CT for heater
burnout detection and SSR
short-circuit detection.
ON
SW2
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
Rated input voltage:
12 to 24 VDC
F 01 2
SW1
COM1
COM2
COM3
240 VAC, 25 A or 35 A
480 VAC, 25 A or 35 A
BCDE
F 0 12
78 9 A
B C DE
345 6
PWR
RUN
ERR
ALM
G3PF (SSRs with built-in CTs)
G3PE (Single Phase)
ES1B
Infrared Thermosensor
Two-channel SSR outputs can be
connected to models with
TC2@-QNHB.
The number of SSRs that can be
connected for each channel is listed
on the right.
EJ1-TC2
COM1
COM2
COM3
PWR
RUN
ERR
ALM
78 9 A
345 6
SW1
ON
F 01 2
F 01 2
78 9 A
G3PE (Three Phase)
COM1
COM2
COM3
EJ1-TC2
B CDE
B CDE
240 or 480 VAC, 15 A, 25 A, 35 A, or 45 A
2
ON
SW2
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW2
PWR
RUN
ERR
ALM
EJ1-TC2
PWR
RUN
ERR
ALM
COM1
COM2
COM3
89ABC
Ultra-compact and slim
model combined with a
heat radiator
34567
SW2
1 2 3 4 5 6 7 8
%(IN)
%(DUTY)
%(OUT)
%(PHASE)
A
COMM
ENT
RST
1
2
ENT
RST
-
1-5V
-
4-20mA
+
DUTY SET
ALARM1(NPN)
ALARM2(NPN)
EVENT
RESET
4
5
1
2
100-240VAC
L
N
SET
-
1-5V
-
4-20mA
+
G3PW
DUTY SET
ALARM1(NPN)
ALARM2(NPN)
EVENT
RESET
4
5
1
2
100-240VAC
L
N
B(+)
RS-485
A(-)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
REMOTE SET
3
+
3
EV
-
1-5V
-
4-20mA
+
REMOTE SET
DUTY SET
ALARM1(NPN)
ALARM2(NPN)
EVENT
RESET
3
+
4
Special Cable
(Communications)
Four 480-VAC
models
(10 A/20 A/40A)
One 240-VAC
model
(75 A/95 A)
Special Cable
(Communications)
5
100-240VAC
L
N
G3ZA
Multi-channel Power Controller
* Side-by-side mounting is possible only for
20 A or 45 A models.
G3ZA
• Concept behind the Number of SSRs That
Can Be Connected in Parallel
(A): The maximum load current for the voltage
output (to drive SSRs) for the Temperature
Controller is 21 mA.
(B): The input impedance for SSRs is 7 mA
(G3NA).
In this case, the number of SSRs that can
be connected in parallel is (A) ÷ (B),
therefore 3.
The maximum load current in the connection
example is 21 mA.
AGHT
SSR
SSR
SSR
Rated input voltage:
5 to 24 VDC
AG
A
HT
OM
AG
AG
HT
RO URW
AG HTUR N
NB U
AG HTUR WN
VC
HT
BV
UR WNBV CD
WN
SIO
BV CDSIO LH
HT
CD
GF
UR
WNB SIOLH LHGF
VC GF
AG
HT
U
AG
A
A
A
Standard model
with screw terminals
G3NE
240 VAC, 5 A, 10 A, or 20 A
1
Can be mounted side by side *
NBVC
G3NA
240 VAC, 5 A, 10 A, 20 A, 40 A, 75 A, or 90 A
480 VAC, 10 A, 20 A, 40 A, 75 A, or 90 A
· Two current output channels can
be connected to the TC2@-CNB.
· Up to eight G3ZA or G3PW can be
connected to each Basic Unit.
ENT
RST
G3PW
B(+)
RS-485
A(-)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
REMOTE SET
3
+
ADJ
%(IN)
%(DUTY)
%(OUT)
%(PHASE)
A
COMM
G3PW
B(+)
RS-485
A(-)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
EV
R
ON
1 2 3 4 5 6 7 8
%(IN)
%(DUTY)
%(OUT)
%(PHASE)
A
COMM
SET
AG
OMRON
AGHTU
AG
Single-phase Power Controller
G3PW
ADJ
Rated input voltage:
240 V: 5 to 24 VDC
480 V: 12 to 24 VDC
AGHTURW
34567
SW1
ON
SW2
EJ1-TC2
012
SW1
COM1
COM2
COM3
DEF
012
89ABC
DEF
G3PA
240 VAC, 10 A, 20 A, 40 A, or 60 A
480 VAC, 20 A, 30 A, or 50 A
3
EJ1N-TC2@-CNB
Rated input voltage:
12 to 24 VDC
Three-phase batch
control combined with
heat radiator
Four-channel SSR outputs can be
connected to models with TC4.
The number of SSRs that can be
connected for each channel is listed
on the right.
Thermocouple/Platinum
Resistance Thermometer E52
EV
Rated input voltage:
12 to 24 VDC
Ultra-compact and slim
model combined with a
heat radiator
345 6
PWR
RUN
ERR
ALM
SW1
SET
3
EJ1N-TC4
ES2-HB Humidity Sensor
ES2-THB Temperature/Humidity Sensor
ADJ
240 VAC, 15 A, 25 A, 35 A, or 45 A
480 VAC, 15 A, 25 A, 35 A, or 45 A
Rated input voltage:
12 VDC
Compact low-cost
models with quickconnect terminals
SSR
G3PH
240 VAC, 75 A or 150 A
READY
SD/RD
SW1
OCC
4
SW2
ERROR
480 VAC, 75 A or 150 A
Rated input voltage:
5 to 24 VDC
Eight Units max.∗
For controlling
high-power heaters
∗The G3ZA is available with 4 or 8 control
points.
23
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ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
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AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
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Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
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Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
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Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
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Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.12
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2015 All Right Reserved.
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