Delta DVP-ES3 Series Hardware Manual

Chapter 4 Installing Hardware
4-11
4_
4.1.5 Connecting Power Cables
4.1.5.1 Precautions
 Connecting AC power cables
(1) The cables carrying the 110 VAC, 220 VAC, and 24 VDC should be single or two-wire cables.
(2) Do not bundle 110 VAC cable, 220 VAC cable, 24 VDC cable, the (high-voltage high-current) main
circuit, and the I/O signal cable together. The distance between adjacent cables should be more
than 100 millimeters (3.94 inches).
(3) To prevent electrical surge from lightning, install a surge protector as shown below.
Surge absorber
Power Supply
100~240VAC
ES3/EX3
CPU
Module
Things to note while grounding
1. Ground the surge protector and the PLC system.
2. Select the surge protector with a working voltage that is not less than the maximum allowable input voltage.
4.1.5.2 Grounding
 The diameter of the ground should not be
less than the diameters of the cables
connected to the terminals L and N.
 If using multiple pieces of equipment, use
a single-point ground.
ES3/EX3
CPU Module
Another piece of
equipment
The single-point ground is better.

If you cannot use a single-point ground,
use a common-point ground.
ES3/EX3
CPU Module
The common-point ground is permitted.
Another piece of
equipment

Do not connect equipment ground wires
together as shown on the right.
ES3/EX3
CPU Module
The equipment can n ot be grounded i n t his way.
Another piece o f
equipment

Delta DVP-ES3 Series Specifications

General

Brand	Delta
Model	DVP-ES3 Series
Category	Controller
Language	English