Precautions When Wiring; Wiring - Omron E5CN User Manual

Wiring Terminals
2-2-2

Precautions when wiring

2-2-3

Wiring

Power supply
Input
Control output 1
• Separate input leads and power lines in order to protect the E5CN and its
lines from external noise.
• Use AWG28 or larger twisted pair cable.
• We recommend using solderless terminals when wiring the E5CN.
• Tighten the terminal screws using a torque no greater than 0.74 N ⋅ m.
• Use the following type of solderless terminals for M3.5 screws.
• Connect to terminal Nos. 9 and 10. The following table shows the specifi-
cations.
Input power supply
100 to 240 VAC, 50/60 Hz
24 VAC, 50/60 Hz
24 VDC (no polarity)
• Standard insulation is applied to the power supply I/O sections. If rein-
forced insulation is required, connect the input and output terminals to a
device without any exposed current-carrying parts or to a device with
standard insulation suitable for the maximum operating voltage of the
power supply I/O section.
• Connect to terminal Nos. 3 to 5 as follows according to the input type.
Thermocouple Platinum resistance
• Terminal Nos. 1 and 2 are for control output. The following diagrams show
the available outputs and their internal equalizing circuits.
Temperature
controller
1
2
Relay
• The following table shows the specifications for each output type.
Output type
Relay 250 VAC, 3A (resistive load), electrical life: 100,000 opera-
tions
Voltage (PNP) PNP type, 12 VDC, 21 mA (with short-circuit protection)
Current 4 to 20mA DC, load : 600Ω max., resolution : approx. 2,600
7.2 mm max.
7.2 mm max.
E5CN
7VA
4VA
3W
3 3 3
−
4 4 4
5 5 5
+
Analog
thermometer input
+V
+
−
1
L
2
GND
Voltage
Specifications
Section 2-2
−
v
+
+V
+
1
L
GND
2
−
Current
13