GD310-UL series VFD
Maintenance and hardware diagnostics
-185-
Checking
Item
Method
Criterion
Ensure that there are no
crackles or color-changing of the
protective layers.
Visual examination NA
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
multimeter
The resistors are in
±10% of the
standard value.
Transformer
and reactor
Ensure there is no abnormal
vibration, noise and smelling,
Hearing, smelling
and visual
examination
NA
Electromagn
etism
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
Содержание GD310-011P-4-UL
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