Omron CK3W-GC 00 Series Hardware User Manual page 164

4 Installation
 Controller Ground Terminals
The Controller has the following ground terminal.
Grounding
type
Functional
Grounding
When the functional ground terminal is correctly grounded, it is generally effective in suppressing
power supply common noise. Occasionally, however, grounding this terminal will result in picking
up more noise, so be careful when using it.
4-30
Symbol
Ground this terminal when power supply noise causes malfunc-
tioning.
CK3M-series Programmable Multi-Axis Controller User's Manual Hardware (O036)
Connection