Unitronics UMI-B1 UL Series User Manual

UMI-B1 UL Series Inverter Fault tracking
100
Checking part
Checking item
Checking
method
Criterion
remove one
ending to
coagulate or
measure with
multimeters
the standard
value.
Transformers and
reactors
Ensure there is no
abnormal vibration,
noise and smelling,
Hearing,
smelling and
visual
examination
NA
Electromagnetism
contactors and
relays
Ensure whether there
is vibration noise in the
workrooms.
Hearing
NA
Ensure the contact 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
Ensure there is no
weeping and distortion
to the capacitors.
Visual
examination or
estimate the
usage time
according to the
maintenance
information
NA
Cooling
system
Cooling fan
Estimate whether
there is abnormal
noise and vibration.
Hearing and
Visual
examination or
rotate with hand
Stable rotation
Estimate there is no
losses screw.
Tighten up
NA

Unitronics UMI-B1 UL Series Specifications

General

Brand	Unitronics
Model	UMI-B1 UL Series
Category	Inverter
Language	English