INVT Goodrive 310-UL Series Operation Manual page 193

GD310-UL series VFD
Checking
Terminals
seat
Filter
capacitors
Resistors
Transformer
and reactor
Electromagn
etism
contactors
and relays
Control PCB and
plugs
circuit
Item
Ensure that there are no
crackles or color-changing of the
protective layers.
Ensure that there is no damage Visual examination NA
Ensure that there is no weeping,
color-changing, crackles and
cassis expansion.
Ensure the safety valve is in the
right place.
If necessary, measure the static
capacity.
Ensure whether there is
replacement and splitting caused
by overheating.
Ensure that there is no offline.
Ensure there is no abnormal
vibration, noise and smelling,
Ensure whether there is vibration
noise in the workrooms.
Ensure the contactor is good
enough.
Ensure there are no loose
screws and contactors.
Ensure there is no smelling and
color-changing.
Ensure there are no crackles,
damage distortion and rust.
Maintenance and hardware diagnostics
Method
Visual examination NA
Visual examination NA
Estimate the usage
time according to
the maintenance or
measure the static
capacity.
Measure the
capacity by
instruments.
Smelling and visual
examination
Visual examination
or remove one
ending to
coagulate or
measure with
multimeter
Hearing, smelling
and visual
examination
Hearing
Visual examination NA
Fasten up
Smelling and visual
examination
Visual examination NA
-185-
Criterion
NA
The static capacity
is above or equal to
the original value
*0.85.
NA
The resistors are in
±10% of the
standard value.
NA
NA
NA
NA