4 Repair activities, controller IRC5
4.29. Replacement of transformer unit
3HAC021313-001 Revision: K304
© Copyright 2004-2008 ABB. All rights reserved.
Removal
The following procedures details how to remove the transformer unit.
Action Note/illustration
1.
DANGER!
Before any work inside the cabinet, please
observe the safety information in section
DANGER - Make sure that the main power has
been switched off! on page 28.
2.
WARNING!
The transformer weighs between 15 and 40 kg,
use a hoist and lifting slings.
3. Remove the moist dust filter magazine.
(Option)
How to remove the moist dust filter
magazine is detailed in section
Replacement of moist dust filter on
page 173.
4. Loosen the attachment screws.
xx0500002027
• A: attachment screw (4pcs)
• B: cover
5. Remove the cover.
6. Disconnect the two grounding wires (gnye,
blue).
7. Disconnect the mains power supply wires, NOTE!
Make a note of the terminal to which
each of the wires are connected. This
will facilitate reconnection to the same
terminal.
Continued
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