IMO SD1 Series - Cooling Fan

SD1 Series Inverters Fault Tracking
-104-
Item to be checked
Details
Check mode
Criterion
Ensure the contactor is
good enough.
Visual examination NA
Control
circuit
PCB and plugs
Ensure there are no
loose screws and
contactors.
Fasten up NA
Ensure there is no
odors and color
changing.
Smelling and visual
examination
NA
Ensure there are no
cracks, damage,
distortion, and rust.
Visual examination NA
Ensure there is no
weeping and distortion
to the capacitors.
Visual examination
or estimate the
usage time
according to the
maintenance
information
NA
Cooling
system
Cooling fan
Estimate whether there
is abnormal noise and
vibration.
Hearing and Visual
examination or
rotate with hand
Stable rotation
Ensure there is no loose
screws.
Tighten up NA
Ensure there is no
color-changing caused
by overheating.
Visual examination
or estimate the
usage time
according to the
maintenance
information
NA
Ventilating duct
Ensure no foreign
objects are in the
cooling fan air vent.
Visual examination NA
6.1.2 Cooling fan
The inverter's cooling fan has a minimum life span of 25,000 operating hours. The actual life
span depends on the inverter usage and ambient temperature.
The operating hours can be found through P07.14 (accumulative hours of the inverter).
Fan failure can be predicted by the increasing noise from the fan bearings. If the inverter is