Cleaning Instructions; Ventilation System - WEG DBW04 Serie Manual Del Usuario

Faults
For the DBW04, it is recommended to replace the fans after 50.000 hours of operation.
5.1 on page 28 illustrates this procedure. It is suggested to perform the cleaning every 6
months of operation, after the module start-up.

5.3.1 Cleaning Instructions

When it is necessary to clean the braking module, follow the instructions below.

Ventilation system:

Disconnect the braking module power supply and wait at least 10 minutes.
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Remove the dust from the cooling air inlet by using a soft brush or a flannel.
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Remove the dust from the heatsink fins and from the fan blades by using compressed air.
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Electronic boards:
Disconnect the braking module power supply and wait at least 10 minutes.
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Remove the dust from the electronic board by using an anti-static brush or an ion air gun
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(Charges Burtes Ion Gun - reference A6030-6DESCO).
If necessary, remove the boards of the rectifier.
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Always wear a ground strap.
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28 | DBW04
Figure 5.1: Fan replacement
Figure