INVT Goodrive350 Series Operation Manual page 245

Goodrive350 series high-performance multi-function inverter
Subject
relay
Control Control PCB,
circuit connector
Cooling fan
Cooling
system
Ventilation duct
For more details about maintenance, contact the local INVT office, or visit our website
http://www.invt.com.cn, and choose Service and Support > Online Service.
Item
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.
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
inspection
Visual inspection
Visual inspection,
and determine the
service life based on
the maintenance
information.
Auditory and visual
inspection, and turn
the fan blades with
your hand.
Screw them up.
Visual inspection,
and determine the
service life based on
the maintenance
information.
Visual inspection
-240-
Chapter 8
Criterion
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.