ABB ACH550-01 User Manual page 376

Maintenance intervals
WARNING! Read the safety instructions in on page
performing any maintenance on the equipment. Ignoring the
safety instructions can cause injury or death.
If installed in an appropriate environment, the drive requires very
little maintenance. The table lists the routine maintenance
intervals recommended by ABB.
Maintenance
Heatsink
temperature check
and cleaning
Main cooling fan
replacement
Internal enclosure
cooling fan
replacement (IP54
units)
Capacitor
reforming
Capacitor
replacement (frame
sizes R5 and R6)
HVAC control panel
battery change.
364
Interval
Depends on the
dustiness of the
environment
(6...12 months)
Every six years
Every three years
Every year when
stored
Every nine to
twelve years,
depending on the
ambient
temperature and
duty cycle
Every ten years
Diagnostics and maintenance
ACH550 User's Manual
8 before
Instruction
See Heatsink
page 365.
See Main fan
replacement on
page 365.
See Internal
enclosure fan
replacement on
page 368.
See Reforming
page 369.
See Replacement
on page 369.
See Control panel
on page 370.
on
on