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Wiring
22-16AWG
< 1.5m m
1. Use 22-16AWG (1.5mm) single or multiple core wire on
I/O wiring terminals. The specification of the terminal is
shown in the figure on the left. The ELC/ELC2 terminal
screws shall be tightened to 1.95 kg-cm (1.7 in-lbs).
2. DO NOT place the I/O signal wires and power supply
wire in the same wiring duct.
3. Use 60/75 ºC copper wires only.
DO NOT install ELC/ELC2 in an environment with:
1. Dust, smoke, metallic debris, corrosive or flammable gas
2. High temperature, humidity
3. Direct shock and vibration
Power Input Wiring
The power input of ELC-PV/ELC2-PV series is DC. When operating ELC-PV/ELC2-PV
series, please make sure that:
1. The power is connected to the two terminals, 24VDC and 0V, and the range of
power is 20.4 ~ 28.8 Vdc. If the power voltage is less than 20.4 Vdc,
ELC-PV/ELC2-PV will stop running, all outputs will go “Off” and ERROR indicator
will flash continuously.
2. A power shutdown of less than 10 ms will not affect the operation of
ELC-PV/ELC2-PV. However, a shutdown time that is too long or a drop of power
voltage will stop the operation of ELC-PV/ELC2-PV and all outputs will go off. When
the power supplied again, ELC-PV/ELC2-PV will automatically return to its
operation. (Please be aware of the latched auxiliary relays and registers inside
ELC-PV/ELC2-PV when programming.)
DC power input
24V
2A
S/S
X0 X1 X2
20.4V~28.8V
0V
DC/DC
5V
Input Point Wiring
There are two types of DC inputs, SINK and SOURCE.
Input point loop equivalent
circuit
Wiring loop
DC Signal IN
S/S
X0
Sinking
SINK mode
(common port for
current input S/S)
24VDC
24G
X0
S/S
+24V
SINK
+5V
24G
S/S
X0 X1 X2+24V
Sink Type
Input point loop equivalent
circuit
Wiring loop
DC Signal IN
S/S
X0
Sourcing
SOURCE mode
(common port for
current output S/S)
24VDC
24G
X0
S/S
+24V
SOURCE
+5V
24G
S/S
X0 X1 X2+24V
Source Type
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