Omron NE1A Series Manual page 43

Wiring
Controlling Devices
Contactor
Other devices
IMPORTANT
44
Use contactors with a forcibly guided mechanism and monitor the auxiliary NC
contact to detect contactor failures.
For feedback, use devices with contacts capable of switching micro-loads of 4
mA at 24 VDC.
Evaluate whether devices used are appropriate to satisfy the requirements of
safety category level.
• Be sure to separate I/O cables from high-voltage/current lines.
• Use I/O cables of 30 m or less.
• Do not apply the power supply to the test output terminals. Doing so may
result in product damage or burning.
Requirements
Section 3-2