Omron E5CN User Manual page 46

Wiring Terminals
24
+V
+
1
1
L
2 GND 2
Relay Voltage
v
+
+
L
GND
Relay Voltage
• The following table shows the specifications for each output type.
E5CN/CN-U
Output type
Relay 250 VAC, 3 A (resistive load), electrical durability: 100,000
operations
Long-life relay 250 VAC, 3 A (resistive load), electrical durability: 1,000,000
operations
Voltage (PNP) PNP type, 12 VDC 15%, 21 mA (with short-circuit protec-
tion)
Current DC 4 to 20 mA/DC 0 to 20 mA, resistive load: 600
Resolution: Approx. 2,700
E5AN/EN
Output type
Relay 250 VAC, 5 A (resistive load), electrical durability: 100,000
operations
Voltage (PNP) PNP type, 12 VDC +15%/ 20%, 40 mA (with short-circuit
protection)
Current DC 4 to 20 mA/DC 0 to 20 mA, resistive load: 600
Resolution: Approx. 2,700
• Always connect an AC load to a long-life relay output. The output will not
turn OFF if a DC load is connected.
• A voltage output (control output) is not electrically isolated from the inter-
nal circuits. When using a grounding thermocouple, do not connect any of
the control output terminals to the ground. If control output terminals are
connected to the ground, errors will occur in the measured temperature
values as a result of leakage current.
• Control outputs 1 and 2 (voltage outputs) are not isolated. For E5AN/EN,
however, the voltage output (control output 2) is isolated.
• Long-life relay outputs use semiconductors for switching when closing
and opening the circuit, thereby reducing chattering and arcing and
improving durability. However, if high levels of noise or surge are imposed
between the output terminals, short-circuit faults may occasionally occur.
If the output becomes permanently shorted, there is the danger of fire due
to overheating of the heater. Design safety into the system, including
+V
+
1
2
Current
E5CN
v
+
Current
E5AN/EN
Specifications
Specifications
Section 2-2
+V
4 4
+
5 5
GND
L
6
6
Relay Voltage
E5CN-U
+
L
max.
max.
+
L