ABB IRC5 Product Manual page 248

4 Repair
4.13 Replacement of drive units
Continued
Refitting
The procedure below describes how to refit the drive units.
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Action
DANGER
Before commencing any work inside the
cabinet, please observe the safety inform-
ation in section Make sure that the main
power has been switched off on page
CAUTION
If the controller is equipped with temper-
ature sensor controlled fans, remove the
sensors before fitting an MDU. See
placement of sensors for the drive sys-
tem fans on page 271.
If the MDU is fitted with the sensors still
in place at the back wall of the cabinet,
the sensor holders will be bent and the
sensors will measure the temperature in
the wrong place. This will result in too
high temperature in the controller cabinet
and shorter life time for the components.
Fit the unit in its intended position and
orientation. Secure it with its attachment
screws.
Reconnect any connectors disconnected
at removal.
Refit the Axis computer unit if it was re-
moved before the drive unit was re-
moved.
Perform the function tests in section
Function tests on page 196
the safety features work properly.
© Copyright 2004-2018 ABB. All rights reserved.
Note/Illustration
26.
Re-
A
xx1500000859
A Temperature sensors
to verify that
Product manual - IRC5
3HAC047136-001 Revision: M