ABB ACQ580-34 Hardware Manual page 96

96 Maintenance
Component
Cooling
Main cooling fan
LCL filter module cooling fan
Circuit board compartment cooling
fan
Batteries
Control panel battery
LSU Control unit battery
Connections and environment
Quality of supply voltage
Spare parts
Spare parts
Reforming DC circuit capacitors
(spare modules and spare capa-
citors)
Inspections by user
Tightness of terminals
Ambient conditions (dustiness,
moisture, corrosion, temperature)
Cleaning of heatsink
Symbols
I Inspection (visual inspection and maintenance action if needed)
P Performance of on/off-site work (commissioning, tests, measurements or other work)
R Replacement
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.
Note: 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.
1 2 3 4 5
P P P P P
I I I I I
P P P P P
I I I I I
I I I I I
I I I I I
Years from start-up
6 7 8 9
R
R
R
R
R
P P P P
I I I I
P P P P
I I I I
I I I I
I I I I
10 11 12 ...
R
P P P P
I I I I
P P P P
I I I I
I I I I
I I I I