ABB IRC5 - Page 229

4 Repair activities, controller IRC5
4.10. Replacement of computer unit DSQC639
2273HAC021313-001 Revision: K
© Copyright 2004-2008 ABB. All rights reserved.
Removal
The procedure below details how to remove the computer unit.
NOTE!
The computer unit can have different design. The procedure how to remove the computer
unit is the same.
Circuit diagram See Circuit Diagram on page 341
Equipment Note
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.
esd
WARNING!
The unit is sensitive to ESD, before handling
the unit please observe the safety
information in section WARNING - The unit is
sensitive to ESD! on page 29
3. Disconnect all connectors from the computer
unit.
NOTE! Make a note of any connections.
4. Remove the transportation screw.
xx0600003048
• A: transportation screw
Continued
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