Supply And Inverter Modules; Cleaning; Replacing A Supply Or Inverter Module - ABB ACS880-37 Hardware Manual

164 Maintenance

Supply and inverter modules

Cleaning


The module heatsink fins pick up dust from the cooling air. The module runs into
overtemperature warnings and faults if the heatsink is not clean. In a "normal" environment
(neither especially dusty nor clean), the heatsink should be checked annually, in a dusty
environment more often.
WARNING! Obey the instructions in chapter
ignore them, injury or death, or damage to the equipment can occur.
1. Stop the drive (if running) and do the steps in section
(page 19) before you start the work.
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.

Replacing a supply or inverter module


WARNING! Make sure the replacement module has exactly the same
type code as the old module. See also section
Follow the module extraction and insertion procedures under
(units without common motor terminal cubicle or sine output filter)
Safety instructions. If you
Electrical safety precautions
Fans elsewhere in
Licensing (page 30).
Connecting the motor cables
(page 109).