4-21
4 Installation and Wiring
NJ-series CPU Unit Hardware User’s Manual (W500)
4-3 Mounting Units
4
4-3-5 Assembled Appearance and Dimensions
Precautions for Correct UsePrecautions 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 Controller before connecting a cable.
• An I/O bus check error will occur and the Controller will stop if an I/O Connecting Cable's con-
nector is disconnected 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
connecting 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).
• The minimum bending radius is 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.
The NJ-series Units, including the Power Supply Unit, the CPU Unit, and I/O Units, are connected to
each other. An End Cover is connected to the right end.
4-3-5 Assembled Appearance and Dimensions
R
R = 69 mm min.
Cable outer diameter: 8.6 mm
TUO
IN
II101
CJ1W-II101
I/O Interface Unit
Output connector cover
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