163 ACS2000 AFE 1MVA UM 3BHS297030 ZAB E01 REV. J
10.6 Corrective maintenance
10.6.1 Overview on maintenance tasks
• Visual checks on the drive
• Cleaning
• Checking wire and cable connections
• Replacing filter mats
• Replacing a phase module
• Replacing a fan
10.6.2 Safety
Hazardous voltages!
Before starting to work on the drive, make sure
that:
• the main and auxiliary power supply to the drive
is switched off, locked out, and tagged out,
• the drive is dead,
• safety ground connections are in place,
• personal protective equipment is provided and
used when required,
• everyone involved is informed.
Before energizing the drive again, make sure that:
• all foreign objects are removed from the drive,
• all internal and external covers are securely
fastened and all doors are closed, locked and /
or bolted,
• the manual release of the safety switches are in
the locked position
Hazardous voltages!
When a phase module is removed from the cabinet,
the grounding path between grounding switch and
PE ground busbar is interrupted.
For this reason, connect grounding equipment at
the appropriate locations. The grounding
equipment ensures that hazardous voltages
cannot be fed into the drive from the main power
supply or the motor
Foreign matter and particularly metallic dust can
cause failure and damage when the drive is ener-
gized.
Ensure that foreign matter cannot enter the
cabinet:
• Close the doors and cover openings completely
when work is discontinued.
• Retrieve any foreign matter which accidentally
dropped into the cabinet.
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