Replacement Of Wearing Parts; Cooling Fan - INVT Goodrive390L Series User Manual

Goodrive390L Series Lift-Dedicated VFD
Check item
Connection
Whether there is overheating or damage
terminal
Whether there is electrolyte leakage, discoloration,
Electrolytic
cracks, and housing expansion
capacitor
Whether the safety valve is exposed outside
Whether
overheating
External
braking
Whether aging, skin breakage, or wire damage occurs to
resistor
the resistor cable
Whether there is vibration sound during running
Contactor and
relay
Check whether the contacts are in good contact.
Whether the screws and connectors become loose
Control PCB
Whether there is unusual smell or discoloration
and connector
Whether there is corrosion or rust stains
Ventilation Whether there are foreign matters blocking or attached
duct to the cooling fan, air inlets, or air outlets
For more details about maintenance, contact the local INVT office, or visit our website
www.invt.com, and choose Support > Services.

9.2 Replacement of wearing parts

The wearing parts of VFD mainly include the cooling fan and electrolytic capacitor, of
which the service life is closely related to the running environment and maintenance
condition. In normal use at the ambient temperature of 40°C, the general life time is as
follows:

9.2.1 Cooling fan

Possible damage cause

Bearing wear, blade aging, water, oil, dust and other environmental factors may cause
circuit board damage.
202403 (V1.0）
there is
Part
Fan
Electrolytic capacitor
Content
displacement caused
Inspection and maintenance
Method
Visual inspection
Visual inspection
Visual inspection
due to Olfactory
visual inspection
Visual inspection,
or measuring with
a multimeter after
removing
cable end
Auditory
inspection
Visual inspection
Screw them up.
Olfactory
visual inspection
Visual inspection
Visual inspection
Service life
≥ 5 years
≥ 5 years
and
one
and
125