4 Installation and Wiring
4-12
NJ-series CPU Unit Hardware User’s Manual (W500)
• Wiring Ducts
Whenever possible, route I/O wiring through wiring ducts or raceways. Install mounting bracket so
that it is easy to fish wire from the I/O Units through the duct. It is handy to have the duct at the
same height as the Racks.
Wiring Duct Example
Precautions for Correct UsePrecautions for Correct Use
Tighten terminal block screws and cable screws to the following torques.
Terminal Screws
M4: 1.2 N·m
M3: 0.5 N·m
Cable Connector Screws
M2.6: 0.2 N·m
Duct
Duct
Unit
20 mm min.
20 mm min.
DIN Track
30 mm
40 mm
30 mm
CPU
Rack
Mounting
bracket
Duct
81.6 to 89 mm
Expan-
sion
Rack
To Next Page
Loading...
