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Wiring
1. Use 22-16AWG (1.5mm) single or multiple core wire
on I/O wiring terminals. See the figure in the right hand
side for its specification. ELC2 terminal screws should be
tightened to 1.90 kg-cm (1.65 in-lbs) and please use only
60/75ºC copper conductor.
22-16AWG
< 1.5mm
2. DO NOT wire empty terminal and place the I/O signal cable in the same wiring
circuit.
3. DO NOT drop tiny metallic conductors into the ELC2 while screwing and wiring
terminals. When finished wiring, remove off the protective sticker on the heat
dissipation opening to ensure normal heat dissipation of the ELC2.
Safety Wiring
Eaton’s power supply modules ELC-PS01 or ELC-PS02 are the suitable 24 Vdc power
supplies for ELC2-PA. Users are suggested to install a protective circuit at the power
supply terminal to protect ELC-PS01 or ELC-PS02. See the figure below.
○
1
AC power supply:100 ~ 240VAC, 50/60Hz
○
2
Breaker
○
3
Emergency stop: This button cuts off the system power supply when accidental
emergency takes place.
○
4
Power indicator
○
5
AC power supply load
○
6
Power supply circuit protection fuse (2A)
○
7
ELC-
PS01/
ELC-
PS02
○
8
DC power supply output: 24VDC, 500mA
○
9
ELC-PLC (main processing unit)
○
10
Digital I/O module
Power Supply
The power input of ELC2-PA series is DC. When operating ELC2-PA series, please note
the following points:
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, ELC2 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 the PLC.
However, a shutdown time that is too long or a drop of power voltage will stop the
operation of the ELC2 and all outputs will go OFF. When the power returns to normal
status, the ELC2 will automatically resume operation. (Care should be taken on the
latched auxiliary relays and registers inside the ELC2 when programming).
