Delta DVP-EH3, Instruction Sheet, Page: 5 / 19

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Installation
Please install the PLC in an enclosure with sufficient space
around it to allow heat dissipation, as shown in the figure.
y
Direct Mounting:
Please use M4 screw according to the
dimension of the product.
y
DIN Rail Mounting:
When mounting the PLC to 35mm DIN
rail, be sure to use the retaining clip to stop any side-to-side movement
of the PLC and reduce the chance of wires being loose. The retaining
clip is at the bottom of the PLC. To secure the PLC to DIN rail, pull
down the clip, place it onto the rail and gently push it up. To remove the
PLC, pull the retaining clip down with a flat screwdriver and gently
remove the PLC from DIN rail, as shown in the figure.
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Wiring
1. Use O-type or Y-type terminal. See the figure in the
right hand side for its specification. PLC terminal
screws should be tightened to 9.50 kg-cm (8.25 in-Ibs)
and please use only 60/75ºC copper conductor.
To suit M3.5
screw terminals
Below
6.2 mm
Below
6.2 mm
2. DO NOT wire empty terminal. DO NOT place the input signal cable and output
power cable in the same wiring circuit.
3. DO NOT drop tiny metallic conductor into the PLC while screwing and wiring. Tear
off the sticker on the heat dissipation hole for preventing alien substances from
dropping in, to ensure normal heat dissipation of the PLC.

Safety Wiring
In PLC control system, many devices are controlled at the same time and actions of any
device could influence each other, i.e. breakdown of any device may cause the
breakdown of the entire auto-control system and danger. Therefore, we suggest you
wire a protection circuit at the power supply input terminal. See the figure below.
[ Figure 4 ]
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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
DVP-PLC (main processing unit)
○
8
DC power supply output: 24VDC, 500mA