INVT Goodrive270 Series Operation Manual page 298

Goodrive270 series VFD for fan and pump
Check scope
contactor and
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
https://www.invt.com, and choose Support > Services.
Check category
vibration sounds in the
workshop.
Check whether the contacts are
in good contact.
Check whether the screws and
connectors loose.
Check whether there is unusual
smell or discoloration.
Check whether there are
cracks, damage, deformation,
or rust.
Check whether there is
electrolyte leakage or
deformation.
Check whether there are
unusual sounds or vibration.
Check whether the bolts loose. Screw them up.
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.
Check whether there are foreign
objects attached.
Method
inspection
Visual inspection No exception.
Screw them up.
Olfactory and
visual inspection
Visual inspection No exception.
Visual inspection,
and determine
the service life
based on the
maintenance
information.
Auditory and
visual inspection,
and turn the fan
blades with hand.
Visual inspection,
and determine
the service life
based on the
maintenance
information.
Visual inspection No exception.
-288-
Maintenance
Criterion
No exception.
No exception.
No exception.
The rotation is
smooth.
No exception.
No exception.