￭
Recommended maintenance intervals after start-up
Recommended annual actions by the user
Connections and environment
PQuality of the supply voltage
Spare parts
ISpare parts
PReforming DC circuit capacitors of spare modules
Inspections
ITightness of terminals
IDustiness, corrosion and temperature
PCleaning the heatsink
Years from start-upMaintenance task/object
21181512963
Cooling fans
(R)R(R)R(R)R(R)
Main cooling fan
1)
(R)(R)(R)
Functional safety
ISafety function test
See the maintenance information of the safety function.
20 yearsSafety component expiry (Mis-
sion time
T
M
)
1)
(R) = replacement of component in demanding operating conditions, ie. if surrounding air temperature
in continuous operation is over 40 °C (104 °F) or there is a cyclic heavy load.
Note:
• Maintenance and component replacement intervals are based on the
assumption that the equipment is operated within the specified ratings and
ambient conditions. ABB recommends annual drive inspections to ensure the
highest reliability and optimum performance.
• Long term operation near the specified maximum ratings or ambient conditions
may require shorter maintenance intervals for certain components. Consult
your local ABB Service representative for additional maintenance
recommendations.
86 Maintenance
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