5 Installation
5-6
CJ2 CPU Unit Hardware User’s Manual
A CJ-series PLC must be mounted inside a control panel on DIN Track. Normally the CPU Rack is
installed on top and the Expansion Racks under it.
• Consider the width of wiring ducts, wiring, ventilation, and Unit replacement when determining the
space between Racks.
Additional Information
A CJ-series PLC must be mounted on DIN Track. It cannot be mounted with screws.
• Whenever possible, route I/O wiring through wiring ducts or raceways. Install the duct 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.
z Wiring Ducts
5-2-2 Installation in a Control Panel
Control Panel Installation Dimensions
DIN Track
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
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