INVT GD300-004G-4, Operation Manual

Page: 234 / 312

Goodrive300 inverters Maintenance and hardware diagnostics
233
Checking Item Method Criterion
ending to coagulate
or measure with
multimeters
standard value.
Transform
ers
and
reactors
Ensure there is no abnormal
vibration, noise and smelling,
Hearing, smelling
and visual
examination
NA
Ensure whether there is
vibration noise in the
workrooms.
Hearing
NA
Electroma
gnetism
contactors
and
relays
Ensure the contactor is good
enough.
Visual examination
NA
Ensure there are no loose
screws and contactors.
Fasten up
NA
Ensure there is no smelling
and color-changing.
Smelling and visual
examination
NA
Ensure there are no
crackles, damage distortion
and rust.
Visual examination
NA
Control
circuit
PCB
and
plugs
Ensure there is no weeping
and distortion to the
capacitors.
Visual examination
or estimate the
usage time
according to the
maintenance
information
NA
Estimate whether there is
abnormal noise and
vibration.
Hearing and Visual
examination or
rotate with hand
Stable rotation
Cooling
system
Cooling
fan
Estimate there is no losses
screw.
Tighten up
NA