INVT Goodrive350 Series Operation Manual page 307

Goodrive350 IP55 High-ingress Protection Series VFD
Check scope
relay
Control Control PCB
circuit and connector
Cooling fan
Cooling
system
Ventilation duct
For more details about maintenance, contact the local INVT office, or visit our website
www.invt.com, and choose Support > Services.
8.3 Cooling fan
The service life of the cooling fan of the VFD is more than 25,000 hours. The actual service life
of the cooling fan is related to the use of the VFD and the temperature in the ambient
environment.
Check item
workshop.
Check whether the contacts
are in good contact.
Check whether the screws
and connectors loose.
Check whether there is
unusual smell
discoloration.
Check whether there are
cracks, damage,
deformation, or rust.
Check whether there is
electrolyte leakage
deformation.
Check whether there are
unusual sounds
vibration.
Check whether the bolts
loose.
Check whether there is
decoloration caused due to
overheat.
Check whether there are
foreign matters blocking or
attached to the cooling fan,
air inlets, or air outlets.
Method
Visual inspection
Screw them up.
Olfactory and visual
or
inspection
Visual inspection
Visual inspection,
and determine the
or service life based
on the maintenance
information.
Auditory and visual
inspection, and turn
or
the fan blades with
your hand.
Screw them up.
Visual inspection,
and determine the
service life based
on the maintenance
information.
Visual inspection
-289-
Maintenance
Expected result
No exception occurs.
No exception occurs.
No exception occurs.
No exception occurs.
No exception occurs.
The rotation is
smooth.
No exception occurs.
No exception occurs.
No exception occurs.