INVT GD200A-004G-4, Руководство по эксплуатации

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GD200A series VFD Fault tracking
-123-
Checking part Checking item
Checking
method
Criterion
Terminals
seat
Ensure that there is no
damage
Visual
examination
NA
Filter
capacitors
Ensure that there is no
weeping, color-changing,
crackles and cassis expansion.
Visual
examination
NA
Ensure the safety valve is in
the right place.
Estimate the
usage time
according to the
maintenance or
measure the static
capacity.
NA
If necessary, measure the
static capacity.
Measure the
capacity by
instruments.
The static capacity is
above or equal to the
original value *0.85.
Resistors
Ensure whether there is
replacement and splitting
caused by overheating.
Smelling and
visual
examination
NA
Ensure that there is no offline.
Visual
examination or
remove one
ending to
coagulate or
measure with
multimeters
The resistors are in
±10% of the standard
value.
Transformers
and reactors
Ensure there is no abnormal
vibration, noise and smelling,
Hearing, smelling
and visual
examination
NA
Electromag-
netism
contactors
and relays
Ensure whether there is
vibration noise in the
workrooms.
Hearing NA
Ensure the contactor is good
enough.
Visual
examination
NA
Control
circuit
PCB and
plugs
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