60 Maintenance
Recommended annual maintenance actions by the user
ABB recommends that you do these annual inspections to ensure the highest reliability
and optimum performance of the inverter.
Recommended maintenance intervals
1) Always when inverter module is replaced, check the cleanliness and condition of power connection and heat
sink. Cleaning if needed.
2) Check the tightness of the main circuit terminals during commissioning. See the recommended tightness in
the Hardware manual. If the inverter installation conditions require, check the tightness more often. Obey the
local regulations.
Target / task Action
Connections and environment
Environment check I
Cabinet door filters IP41 R
Spare parts
Spare parts I
DC circuit capacitors reforming, spare modules and spare capacitors P
Inspections by the user
IP41 air inlet and outlet grills I
Inspection of dustiness, corrosion, and temperature inside the cabinet. Cleaning, if needed. I
Overall cleanliness of inverter (e.g. cabinet door sealings, function of cooling fans, main circuit
terminals)
I
Other
Air circuit breaker maintenance I
Component Years from start-up
1 3 6 9 1215182124
Connections and environment
Heat sink cleaning
(1
IIIIIIII
Cleanliness of power connections of the inverter module.
Clean if necessary.
(1
IIIIIIII
Tightness of the AC and DC terminals
(2
III
Main cooling fans and control
Main cooling fan, inverter unit R R
BFPS module internal power supply boards R R
Cooling fan, LCL-filter unit R R
Cooling fan of R8i inverter unit PCBs R R
Cabinet cooling fans
Cabinet cooling fans R R
Inverter unit
BINT, BGDR, BDPS module internal circuit boards R R
Flat ribbon cables (module internal circuit boards) R R
Common, control panel and control unit batteries
BCU control unit battery (Real-time clock) RRRR
Control panel battery (Real-time clock) R R
Buffers and power supplies
Auxiliary power supplies R R
Auxiliary buffers R R
3AXD10000605550
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