Igbt Supply Module; Cleaning The Module - ABB ACS880-207 Hardware Manual

IGBT supply module

Cleaning the module


The supply module heatsink fins pick up dust from the cooling air. Modules run into
overtemperature warnings and faults if the heatsink is not clean.
WARNING! Only qualified electricians are allowed to this work. Read the
complete safety instructions of the drive. Ignoring the instructions can cause
physical injury or death, or damage to the equipment.
WARNING! Use a vacuum cleaner with an antistatic hose and nozzle. Using a
normal vacuum cleaner creates static discharges which can damage circuit
boards.
1. Disconnect the drive from the AC power line and make sure it is safe to start the work.
See section Electrical safety precautions
2. Remove the cooling fan of the supply module as described under
this chapter.
3. Blow clean, dry and oilfree compressed air through the module from bottom to top,
simultaneously using a vacuum cleaner at the air outlet to trap the dust. Note: Prevent
the dust from entering adjoining equipment.
4. Refit the cooling fan.
on page 42.
Maintenance 85
Fans elsewhere in