￭
Recommended maintenance intervals after start-up
Years from start-up
Component
…121110987654321
Cooling
RSupply and inverter module
main cooling fans
RSupply and inverter modules:
circuit board compartment fan
RSine filter (option +E206) cool-
ing fan
RDoor fan
ROther cabinet cooling fans (50
Hz)
RROther cabinet cooling fans (60
Hz)
Batteries
RControl panel battery
RRControl unit battery
Connections and environment
IIIIIIIIIIIIIAir inlet and outlet meshes
(IP22/IP42)
RRRRRRRRRRRRRCabinet door filters (IP54)
IIIIIIIIIIIIITightness of terminals
IIIIIIIIIIIIIAmbient conditions (dustiness,
moisture, corrosion, temperat-
ure)
IIIIIIIIIIIIICleaning of heatsinks
PPPPPPPPPPPPPQuality of supply voltage
IIIIIIIIIIIIIAir circuit breaker maintenance
(if present)
Spare parts
IIIIIIIIIIIIISpare part stock
PPPPPPPPPPPPPReforming DC circuit capacitors
(spare modules and spare capa-
citors)
Functional safety
I
See the maintenance information of the safety function.
Safety function test
20 yearsSafety component expiry (Mis-
sion time,
T
M
)
Maintenance 181
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