3 Maintenance activities, controller IRC5
3.2.1. Inspection of the controller
1713HAC021313-001 Revision: K
© Copyright 2004-2008 ABB. All rights reserved.
4. Inspect the drive system fans and air
channels in the controller to make sure
they are clean.
xx0500002172
• A: drive system fans (4 pcs)
5. After cleaning:
Temporarily turn the power supply to
the modules on.
Inspect all fans to make sure they
function correctly.
Turn the power supply back off.
Replace any malfunctioning fans as detailed in
theReplacement of heat exchange unit and fan
on page 218orReplacement of drive system
fans on page 300.
Action Note/Illustration
Continued
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