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Note Tighten the PC Rack mounting screws, terminal block screws, and cable screws

to the torque of 1.2 N S m.

Caution Racks must be mounted horizontally so that the Units are upright (i.e., not upside

down or lying on their backs). The Units can overhead and malfunction if not

mounted properly.

I/O Connecting Cables Each I/O Connecting Cable can be up to 10 m long, but the sum total of all cables

between the CPU Rack and Expansion I/O Racks must be 12 m or less.

The duct work shown in the following diagram is recommended to hold I/O wir-

ing. Although optional, this duct work can be used to house the wires from the I/O

Units that run along the sides of the Racks, keeping the wires from becoming

entangled. This figure illustrates the correct way to mount the Racks.

Input duct

CPU

Rack

Expansion

I/O Rack

Power

equipment

such as

transform-

ers and

magnetic

relays

Breakers,

fuses

Output duct

Power duct

200 mm min.

Terminal blocks for

power equipment

Terminal blocks

for PC

Fuses, relays, tim-

ers, etc. (NOT

heat-generating

equipment, power

equipment, etc.)

Note When using the C200HW-PA209R Power Supply Unit at an ambient tempera-

ture exceeding 50°C, in order to improve air circulation, ensure that there is a

Installation Environment Section 3-1

Omron C200HG-CPU43 User Manual

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