4 Repair activities, controller IRC5
4.5. Replacement of I/O units and Gateways
2093HAC021313-001 Revision: K
© Copyright 2004-2008 ABB. All rights reserved.
Required equipment
Removal
The procedure below details how to remove the I/O units or Gateways.
Refitting
The procedure below details how to refit the I/O units or Gateways.
Equipment Note
A number of choices are available! Specified in section Definition of I/O units,
IRC5 on page 100.
Standard toolkit The contents are defined in section Standard
toolkit!
Other tools and procedures may be required.
See references to these procedures in the
step-by-step instructions below.
These procedures include references to the
tools required.
Circuit Diagram See Circuit Diagram on page 341.
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. Identify the I/O unit or Gateway to be replaced.
4. Disconnect the connectors from the unit. Note which connector goes where, to
facilitate reassembly.
5. Tip the unit away from the mounting rail and
remove it.
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.
Continued
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