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Ground Your Redundant Power Supply
The figure below shows how to run functional and equipment protective earth
ground connections from the chassis and power supplies to the ground bus.
For specific information on how to connect ground wiring to the redundant power
supply, see page 16. For specific information on how to connect ground wiring to
the chassis, see the ControlLogix chassis installation instructions, publication
1756-IN080.
We recommend the following:
• Use a ground bus to reduce the electrical resistance at the connection.
• Keep wire lengths as short as possible.
• Use 14 AWG (2.08 sq. mm) 75°C stranded wire for ground connections.
Figure 11
Allen-Bradley H
Earth Ground
ControlLogix Redundant Power Supply
Publication 1756-IN573C-EN-P - October 2003
13
42661
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