INVT IPE300 Series - Page 279

IPE300 series engineering VFD Maintenance
-268-
Check scope
Item
Method
Criterion
Electromagnetic
contactor and
Relay
Check whether there are vibration
sounds in the workshop.
Auditory
inspection
No exception
occurs.
Check whether the contacts are in
good contact.
Visual
inspection
No exception
occurs.
Control
circuit
Control PCB
and connector
Check whether the screws and
connectors loose.
Screw them up.
No exception
occurs.
Check whether there is unusual
smell or discoloration.
Olfactory and
visual
inspection
No exception
occurs.
Check whether there are cracks,
damage, deformation, or rust.
Visual
inspection
No exception
occurs.
Check whether there is electrolyte
leakage or deformation.
Visual
inspection, and
determine the
service life
based on the
maintenance
information.
No exception
occurs.
Cooling
system
Cooling fan
Check whether there are unusual
sounds or vibration.
Auditory and
visual
inspection, and
turn the fan
blades with your
hand.
The rotation is
smooth.
Check whether the bolts loose.
Screw them up.
No exception
occurs.
Check whether there is
decoloration caused due to
overheat.
Visual
inspection, and
determine the
service life
based on the
maintenance
information.
No exception
occurs.
Ventilation duct
Check whether there are foreign
matters blocking or attached to
the cooling fan, air inlets, or air
outlets.
Visual
inspection
No exception
occurs.
For more details about maintenance, contact the local INVT office, or visit our website
http://www.invt.com, and choose Support > Services.