3 Maintenance activities, controller IRC5
3.2.1. Inspection of the controller
3HAC021313-001 Revision: K170
© Copyright 2004-2008 ABB. All rights reserved.
3.2 Inspection activities
3.2.1. Inspection of the controller
Inspection
The procedure below details how to inspect the IRC5 controller.
WARNING!
Please observe the following before commencing any repair work on the IRC5 Controller
modules or units connected to the controller:
• Switch off all electric power supplies with the power switches on the Control and
Drive modules!
• Before handling, make sure you are grounded through a special ESD wrist bracelet or
similar. Many components inside the module are sensitive to ESD (ElectroStatic
Discharge) and can be destroyed if exposed to discharge. See the Safety chapter,
WARNING - The unit is sensitive to ESD! on page 29
Action Note/Illustration
1. Inspect all sealing joints and cable
glands to make sure they are airtight in
order to prevent dust and dirt from
penetrating into the controller.
2. Inspect connectors and cabling to
make sure they are securely fastened
and cabling not damaged.
3. Inspect the heat exchanger andthe fan
on the controller to make sure it is
clean.
xx0500001952
Parts:
• A: fan
• B: heat exchanger
• C: top cover
• D: attachment screw (4 pcs)
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