Delta DVP-ES3 Series Hardware Manual

DVP-ES3/EX3/SV3/SX3 Series Hardware and Operation Manual
C-4
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C1.2 Installation Instructions to meet EMC Standards
You must install an ES3/EX3/SV3/SX3 Series PLC in a control box. The control box protects the PLC and
isolates electromagnetic interference generated by the PLC.
(1) Control box
 Use a conductive control box.
 Make sure to ground the control box properly, and avoid insulation caused by the paint on the
grounding bolts inside the control box.
 Minimize the gaps in the control box to prevent radio waves from leaking. Use an EMI gasket on the
gaps in the control box to suppress radio wave leakage.
(2) Connecting a power cable and a ground
Connect the PLC system power cable and the ground as described below.
 Users can ground the module at any point on the aluminum rail, as well as at the module's ground
terminal.
 Twist the ground and the power cable together; the noise flowing through the power cable is then
passed to the ground. The ground and the power cable do not need to be twisted if you install a filter
on the power cable.
C1.3 Cables
 It is recommended to use shielded cables, when connecting digital I/O modules and analog I/O
modules including temperature modules.
 Ground the shielding cable at a single point.

Delta DVP-ES3 Series Specifications

General

Brand	Delta
Model	DVP-ES3 Series
Category	Controller
Language	English