Replacing Cooling Fan In Sbu; Procedure - ABB ACS580MV Hardware Manual

Synchronized bypass unit

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56 Maintenance

Replacing cooling fan in SBU



1. Stop, de-energize and ground the drive following the steps in section Shutting down

the drive for maintenance before you start the work.

2. Switch off the motor starter of the fan unit to isolate the fan unit from the

auxiliarypower supply. To identify the motor starter, see the

Diagram of SBU

3. Disconnect the wires on the PT, remove the screws that fix the PT, move out the PT

from cabinet.

4. Remove 2 safety blocks on the middle plate, remove the eight hex-head combination

screws (M6x12) that attach the horizontal plate, move out the horizontal plate.

5. Remove the four hex-head combination screws (M6x12) that attach the vertical plate,

move out the vertical plate.

6. Disconnect the wires on the fan kit, remove the screws that fix the fan kit, move out the

fan kit from cabinet.

ACS580MV Wiring

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