Omron NE1A-SCPU01 - 07-2009 Operation Manual page 85

Wiring
Controlling devices
Emergency stop switch
Door interlocking switch or
limit switch
Safety sensor
Relay with forcibly guided contacts
Contactor
Other devices
IMPORTANT
Wiring Output Devices
Use approved devices with a direct opening mechanism compliant with IEC/
EN 60947-5-1.
Use approved devices with a direct opening mechanism compliant with IEC/
EN 60947-5-1 and capable of switching micro-loads of 4 mA at 24 VDC.
Use approved devices compliant with the relevant product standards, regula-
tions, and rules in the country where they are used.
Use approved devices with forcibly guided contacts compliant with EN 50205.
For feedback, use devices with contacts capable of switching
micro-loads of 4 mA at 24 VDC.
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
the safety category level.
• Properly apply the specified voltage to the NE1A-series Controller's
inputs. Applying an inappropriate DC voltage or any AC voltage may
cause reduced safety functions, damage to the NE1A-series Controller, or
a fire.
• Be sure to separate I/O cables from high-voltage/current lines.
• Use a total I/O communications cable length 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.
Refer to the following diagram for selection and wiring of output devices.
NE1A-series
Controller
Requirements
V2
0.5 A max.
24 VDC
OUTx
L
G2
Section 3-2
51