Omron CQM1 Operation Manual page 112

Settings
DC Relay
AC Relay
Solenoid
DC
AC
Solenoid
If the Analog Input Unit malfunctions due to external noise through the power
line to the Analog Input Unit, insert a noise filter to the power line. The Analog
Input Unit may be influenced by noise if the Analog Input Unit and an electric
welding machine share a single power source or if the Analog Input Unit is
operated near a machine that generates high-frequency electromagnetic
waves.
Use a twisted-pair cable for the input wiring to the Analog Input Unit.
Surge absorption diode (Fuji Den-
RY
ki's ERB44-06 or equivalent)
Surge absorber (Okaya Denki's
RY
CR-50500 or equivalent)
Surge absorber (Okaya Denki's
CR-50500 or equivalent)
Section 3-1
93