Omron NX-SID Series User Manual page 141

Precautions for Correct Use
• When you handle an NX Unit, be careful not to touch or bump the pins in the NX bus connec-
tor.
• When you handle an NX Unit, be careful not to apply stress to the pins in the NX bus connec-
tor. If the NX Unit is installed and the power supply is turned ON when the pins in the NX bus
connector are deformed, contact failure may cause malfunctions.
1
From the front of the previously mounted NX Unit, engage the Unit hookup guides on a new NX
Unit with the Unit hookup guides on the previously mounted NX Unit.
Unit hookup guides
2
Slide the NX Unit in on the hookup guides.
3
Press the NX Unit with a certain amount of force against the DIN Track until you hear the DIN
Track mounting hook lock into place. When you mount the NX Unit, it is not necessary to
release the DIN Track mounting hook on the NX Unit.
After you mount the NX Unit, make sure that it is locked to the DIN Track.
Additional Information
• When you mount the NX Unit, it is not normally necessary to release the DIN Track mounting
hook on the NX Unit. If you mount an NX Unit on a DIN Track that is not one of the recom-
mended DIN Tracks, the DIN Track mounting hook may not lock into place. If that happens,
unlock the DIN Track mounting hook at the start of the procedure, mount the NX Unit to the
DIN Track, and then lock the DIN Track mounting hook.
• Refer to the Communications Coupler Unit user's manual for information on how to mount
the Communications Coupler Unit and how to mount the NX Units after the Communications
Coupler Unit.
NX-series Safety Control Unit User's Manual (Z930)
5 Installation and Wiring
Unit hookup guides
5
5 - 3