Conditions For Meeting Emc Directives When Using Cpm1A Relay Expansion I/O Units - Omron CP1L CPU UNIT - 06-2007 Operation Manual

Conformance to EC Directives
6-5 Conditions for Meeting EMC Directives when Using CPM1A Relay
Expansion I/O Units
Recommended Ferrite Core
Recommended Connection Method
1,2,3...
xxxii
When switching a load with a high inrush current such as an incandescent
lamp, suppress the inrush current as shown below.
Countermeasure 1
OUT
R
COM
Providing a dark current of
approx. one-third of the rated
value through an incandescent
lamp
EN61131-2 immunity testing conditions when using the CP1W-40EDR,
CPM1A-40EDR, CP1W-16ER, or CPM1A-16ER with a CP1W-CN811 I/O
Connecting Cable are given below.
Ferrite Core (Data Line Filter): 0443-164151 manufactured by Nisshin Electric
Minimum impedance: 90 Ω at 25 MHz, 160 Ω at 100 MHz
30
32
1. Cable Connection Method
Countermeasure 2
R
OUT
COM
Providing a limiting resistor
33
6