
380 Diagnostics and maintenance
ACH550-01 User's Manual
Maintenance intervals
WARNING! Read the safety instructions on page 6 before
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.
Consult your local ABB Service representative for more details
on the maintenance. On the Internet, go to
http://www.abb.com/drives
and select Drive Services –
Maintenance and Field Services.
Maintenance Interval Instruction
Heatsink
temperature check
and cleaning
Depends on the
dustiness of the
environment
(6…12 months)
See Heatsink on
page 381.
Main cooling fan
replacement
Every six years See Main fan
replacement on
page 381.
Internal enclosure
cooling fan
replacement (IP54
units)
Every three years See Internal
enclosure fan
replacement on
page 385.
Capacitor
reforming
Every year when
stored
See Reforming on
page 386.
Capacitor
replacement (frame
sizes R5 and R6)
Every nine to
twelve years,
depending on the
ambient
temperature and
duty cycle
See Replacement
on page 386.
HVAC control panel
battery change.
Every ten years See Control panel
on page 387.
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