EJ1
23
I/O Devices
Examples of EJ1-series Temperature Controllers/Output Devices
SW2
SW1
ERROR
OCC
SD/RD
READY
G3ZA
SSR SSR
Eight Units max.∗
SSR SSR
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
EJ1
G3ZA
Multi-channel Power Controller
EJ1N-TC2@-QNHB
EJ1N-TC4
Temperature controller
Voltage output
terminal
(for driving SSR)
SSR
INPUT LOAD
Load
Heater
Load
power
supply
G3PF (SSRs with built-in CTs)
Rated input voltage:
12 to 24 VDC
3
4
3
2
Converters, Digital Panel Meters, Flow Meters,
Infrared Thermosensors, Displacement Sensors
240 VAC, 25 A or 35 A
480 VAC, 25 A or 35 A
240 VAC, 10 A, 20 A, 40 A, or 60 A
480 VAC, 20 A, 30 A, or 50 A
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
A
GH
TU
O
M
R
O
N
A
GH
TU
RW
NB
VCD
SIO
L
HG
F
A
G
H
TU
RW
NBV
CDS
IO
LHG
F
A
GH
TUR
W
NBVC
D
SIOL
HG
F
AGHTUR
WN
BVC
AGHTUR
WNBVC
AGH
TU
A
A
A
A
O
M
R
O
N
A
GH
TUR
W
NBVC
A
G
H
T
U
R
A
G
A
G
AGH
T
G3PE (Single Phase)
Ultra-compact and slim
model combined with a
heat radiator
Rated input voltage:
12 to 24 VDC
240 VAC, 15 A, 25 A, 35 A, or 45 A
480 VAC, 15 A, 25 A, 35 A, or 45 A
G3PE (Three Phase)
Three-phase batch
control combined with
heat radiator
Rated input voltage:
12 to 24 VDC
240 or 480 VAC, 15 A, 25 A, 35 A, or 45 A
G3PA
Ultra-compact and slim
model combined with a
heat radiator
Rated input voltage:
240 V: 5 to 24 VDC
480 V: 12 to 24 VDC
Analog quantities, such as temperature,
flow rate, and concentration
ES1B
Infrared Thermosensor
Thermocouple/Platinum
Resistance Thermometer E52
G3NA
Standard model
with screw terminals
Rated input voltage:
5 to 24 VDC
G3NE
Rated input voltage:
12 VDC
240 VAC, 5 A, 10 A, or 20 A
3
∗The G3ZA is available with 4 or 8 control
points.
4
G3NH
For controlling
high-power heaters
Rated input voltage:
5 to 24 VDC
240 or 440 VAC, 75 A or 150 A
Input device/sensor
Can be directly
connected.
1
Special Cable
(Communications)
ES2-HB Humidity Sensor
ES2-THB Temperature/Humidity Sensor
Number of SSRs That Can
be Connected in Parallel
Compact low-cost
models with quick-
connect terminals
• 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.
EJ1N-TC2@-CNB
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.
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.
· Two current output channels can
be connected to the TC2@-CNB.
Four 480-VAC
models
(10 A/20 A/40A)
One 240-VAC
model
(75 A/95 A)
· Up to eight G3ZA or G3PW can be
connected to each Basic Unit.
Can be mounted side by side *
ADJ SET
EV
B(+)
A(-)
RS-485
REMOTE SET
DUTY SET
EVENT
RESET
ALARM1(NPN)
ALARM2(NPN)
G3PW
ENT
RST
L N
45123
100-240VAC
1-5V
+-
+-
4-20mA
%(IN)
%(DUTY)
%(OUT)
%(PHASE)
A
COMM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
ADJ SET
EV
B(+)
A(-)
RS-485
REMOTE SET
DUTY SET
EVENT
RESET
ALARM1(NPN)
ALARM2(NPN)
G3PW
ENT
RST
L N
45123
100-240VAC
1-5V
+-
+-
4-20mA
%(IN)
%(DUTY)
%(OUT)
%(PHASE)
A
COMM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
ADJ SET
EV
B(+)
A(-)
RS-485
REMOTE SET
DUTY SET
EVENT
RESET
ALARM1(NPN)
ALARM2(NPN)
G3PW
ENT
RST
L N
45123
100-240VAC
1-5V
+-
+-
4-20mA
%(IN)
%(DUTY)
%(OUT)
%(PHASE)
A
COMM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Special Cable
(Communications)
Single-phase Power Controller
G3PW
* Side-by-side mounting is possible only for
20 A or 45 A models.
Built-in CT for heater
burnout detection and SSR
short-circuit detection.
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