Omron CJ2 User Manual page 136

5 Installation
Precautions for Correct Use Precautions for Correct Use
• When using an I/O Connecting Cable with a locking connector, be sure that the connector is
firmly locked in place before using it.
• Always turn OFF the power supply to the PLC before connecting a cable.
• An I/O bus error will occur and the PLC will stop if an I/O Connecting Cable's connector sepa-
rates from the Rack. Be sure that the connectors are secure.
• A 63-mm hole will be required if the I/O Connecting Cable must pass through a hole when con-
necting an Expansion Rack.
• Do not bend the I/O Connecting cable past its natural bending radius or pull in it with excessive
force.
• The cables can withstand a pulling force up to 49 N (11 lbs), so be sure that they are not pulled
too forcefully.
• The I/O Connecting Cables mustn't be bent too severely. The minimum bending radii are
shown in the following diagram.
• Always attach the cover to the output connector (left side) on the last I/O Interface Unit on the
last Expansion Rack to protect it from dust.
Output connector cover
5-18
R = 69 mm min.
R
Cable outer diameter: 8.6 mm
CJ1W-II101
I/O Interface Unit
II101
O U
T IN
CJ2 CPU Unit Hardware User's Manual