Velocity Edge GX440 Instructions d'exploitation Page 469

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Maintenance and servicing
11.4 Replacing components
Drive converter cabinet units
Operating Instructions, 10/2008, A5E00288214A
469
Description
The average service life of the device fans is 50,000 hours. In practice, however, the service
life depends on other variables (e.g. ambient temperature, degree of cabinet protection, etc.)
and, therefore, may deviate from this value.
The fans must be replaced in good time to ensure that the cabinet unit is available.
Preparatory steps
Disconnect the cabinet unit from the power supply.
Allow unimpeded access.
Remove the protective cover.
Removal
The steps for the removal procedure are numbered in accordance with the diagram.
1. Remove the retaining screws for the fan unit (3 screws).
2. Unplug connector –X630.
You can now carefully remove the fan unit.
CAUTION
When removing the fan unit, ensure that the cables are not damaged.
Installation
For re-installation, carry out the above steps in reverse order.
CAUTION
The tightening torques specified in the table "Tightening torques for connecting current-
carrying parts" must be observed.
Carefully re-establish the plug connections and ensure that they are secure.
The screwed connections for the protective covers must only be tightened by hand.
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