iDrive2 inverters Fault tracking
66
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
leakage, color-change,
cracking or case
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 there is no
damage due to
overheating.
Smelling and visual
examination
NA
Ensure resistor is not
open circuit.
Visual examination
or check with
multi-meter
The resistors are in ±10% of
the standard value.
Transformers and
reactors
Ensure there is no
abnormal vibration, noise
or smell.
Listen, smelling
and visual
examination
NA
Electromagnetism
contactors and relays
Ensure whether there is
vibration noise in the
workrooms.
Listen.
NA
Ensure the contactor is
correct rating.
Visual examination
NA
Control
circuit
PCB and plugs
Ensure there are no
loose screws and
contacts.
Tighten loose
screws.
NA
Ensure there is no smell
and color-changing.
Smelling and visual
examination
NA
Ensure there is no
cracking, damage
distortion or rust.
Visual examination
NA
Ensure there is no
leakage or distortion to
the capacitors.
Visual examination
or estimate the
usage time
according to the
maintenance
NA