ABB ACS800-104

Maintenance
88
Maintenance intervals
This table lists the routine maintenance intervals recommended by ABB.
Checking and replacing the air filters
Before replacing the air filters of the cabinet, read and repeat the steps in the safety
instructions above.
Heatsinks
Heatsink fins pick up dust from the cooling air. Inverter modules run into
overtemperature warnings and faults if the heatsink is not clean. In a “normal”
environment (not dusty, not clean) the heatsink should be checked annually, in a
dusty environment more often.
Clean the heatsink as follows (when necessary):
1. Remove the cooling fan as described in Cooling fans elsewhere in this chapter.
2. Blow clean, dry compressed air from bottom to top and simultaneously use a
vacuum cleaner at the air outlet to trap the dust. Note: Prevent the dust from
entering adjoining equipment.
3. Refit the cooling fan.
Maintenance Interval Instructions
Capacitor reforming Every year when stored See Capacitor reforming.
Heatsink temperature check
and cleaning
Depending on the dustiness of
the environment, every 6 to 12
months
See Heatsinks.
Cabinet air filter check;
replacement if necessary
Every year
See Checking and replacing
the air filters.
Frame R4i and R5i inverter
modules: Change of
additional cooling fan
Every 3 years See Cooling fans.
Frame R8i inverter modules:
Check and cleaning of power
connections
Every 4 years See Power connections (R8i).
Cooling fan change Every 5 years See Cooling fans.
Frame R4i and larger
inverter modules: capacitor
renewal
Every 10 years See Capacitors.