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External Connections
• A voltage output (control output, for driving SSR) is not electrically insulated from the internal circuits. When using a grounding thermocouple,
do not connect any of the control output terminals to ground. (If the control output terminals are connected to ground, errors will occur in the
measured temperature values as a result of leakage current.)
• Consult with your OMRON representative before using the external power supply for the ES1B for any other purpose.
E5CN
Controllers
Control output 1
Long-life relay output
250 VAC, 3 A (resistive load)
Relay output
250 VAC, 3 A (resistive load)
Voltage output (for driving SSR)
12 VDC, 21 mA
Current output
0 to 20 mA DC
4 to 20 mA DC
Load: 600 Ω max.
Control output 2
Voltage output (for driving SSR)
12 VDC, 21 mA
Option Units
E53-CNHH03N2
Communications
(RS-485) and CT2
B(+)
11
RS-485
12
A(−)
13
CT2
14
CT1
CT1
15
E53-CNH03N2
Communications
(RS-485) and CT
B(+)
11
RS-485
12
A(−)
DO NOT
13
DO NOT
USE
USE
14
DO NOT
CT1
USE
15
DO NOT
USE
E5CN-U
Control output 1
Relay output
(three terminals used)
SPDT, 250 VAC, 3 A
(resistive load)
Voltage output
mA
(for driving SSR)
12 VDC, 21 mA
Current output
4 to 20 mA DC
0 to 20 mA DC
Load: 600 W max.
Note: For the Wiring Socket, purchase the P2CF-11 or PG3A-11 separately.
+
Control output 1
−
+
A
DO NOT
DO NOT
USE
USE
mA
−
−
B
−
V
B
DO NOT
+
+
USE
TC/Pt
Analog input
universalinput
E53-CNHBN2
E53-CNQ03N2
Event inputs
Communications
and CT
(RS-485) and
Control Output 2
11
B(+)
11
RS-485
12
EV1
12
A(−)
13
EV2
DO NOT
13
USE
14
+
14
15
Control output 2
15
−
E53-CN03N2
E53-CNBN2
Communications
Event inputs
(RS-485)
B(+)
11
11
RS-485
12
12
A(−)
EV1
13
13
EV2
DO NOT
14
14
USE
DO NOT
15
15
USE
Control output 1
A
DO NOT
DO NOT
USE
USE
B
V
DO NOT
B
USE
Analog input
TC/Pt
universal input
Auxiliary outputs (relay outputs)
250 VAC, 3 A
(resistive load)
Auxiliary outputs
(relay outputs)
Auxiliary output 2
Auxiliary output 1
Input power supply
• 100 to 240 VAC
• 24 VAC/VDC (no polarity)
E53-CNPBN2
E53-CNPHN2
Event Inputs and
External Power
External Power Supply
Supply and CT
11
+
External
power supply
12
EV1
−
13
DO NOT
EV2
USE
+
14
External
12 VDC,
power supply
20 mA
CT1
15
−
E53-CNQHN2
E53-CNQHHN2
Control Output 2
Control Output 2
and CT
and CT2
+
11
Control output 2
Control output 2
−
12
DO NOT
13
USE
CT2
14
CT1
CT1
15
Auxiliary output
250 VAC, 3 A (resistive load)
(Relay outputs)
Auxiliary output 1
Auxiliary output 2
(Control output (cooling side))
Input power supply
• 100 to 240 VAC
• 24 VAC/VDC (no polarity)
E5CN/E5CN-U
A heater burnout alarm, heater short alarm,
heater overcurrent alarm, or input alarm is
sent to the output to which the alarm 1
function is assigned.
E53-CNP03N2
Communications (RS-485)
and External Power Supply
B(+)
11
11
12 VDC,
RS-485
20 mA
12
12
A(−)
DO NOT
13
13
USE
+
14
External
14
12 VDC,
power supply
20 mA
−
15
15
E53-CNQBN2
Event Inputs and
Control Output 2
+
11
11
−
12
12
EV1
13
13
EV2
+
14
14
Control output 2
15
15
−
An input error is sent to the
output to which the alarm 1
function is assigned.
13
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