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1.5.5 Common fault and troubleshooting
1.5.5 Common fault and troubleshooting
Fault
Fault
Probable
Probable cause
cause
Corrective
Corrective action
action
Brake does not
Brake does not
work
work
Power
Power is
is obstruct
obstructed
ed
Connect
Connect
T
Too
oo low
low exciting
exciting voltage
voltage
Check
Check voltage
voltage and
and adjust.
adjust.
Improper
Improper air
air gap
gap
Adjust
Adjust air
air gap
gap
Stator
Stator coil
coil breaks
breaks
Replace
Replace stator
stator
Oil
Oil dirt
dirt mixed
mixed in
in
Clean
Clean oil
oil dirt
dirt
Long brake time
Long brake time
Switch installed to AC circuit
Switch installed to AC circuit
Install the switch to the DC circuit
Install the switch to the DC circuit
after rectifying
after rectifying
Improper
Improper air
air gap
gap
Adjust
Adjust air
air gap
gap
Oil
Oil dirt
dirt mixed
mixed in
in
Clean
Clean oil
oil dirt
dirt
Slipping
Slipping
Unstable
Unstable operation
operation in
in previous
previous use
use
Breaking-in
Breaking-in for
for a
a while
while
Oil
Oil dirt
dirt mixed
mixed in
in
Clean
Clean oil
oil dirt
dirt
Large load
Large load
Reduce load or replace large
Reduce load or replace large
specification
specification
Large load change
Large load change
Adjust
Adjust load
load peak
peak or
or large
large the
the
specification
specification
High temperature
High temperature
T
Too
oo high
high exciting
exciting voltage
voltage
Check
Check voltage
voltage and
and adjust.
adjust.
Clutch or motor interfere to the
Clutch or motor interfere to the
brake
brake
Check control circuit, eliminate
Check control circuit, eliminate
interference
interference
High
High environment
environment temperature
temperature
Set
Set ventilatio
ventilation
n
High
High operating
operating frequency
frequency
Adjust
Adjust to
to proper
proper frequency
frequency
Over
Over large
large load
load
Reduce
Reduce load
load
Large noise
Large noise
Product service environment needs
Product service environment needs
silence
silence
Silence design
Silence design
Impurity
Impurity mixed
mixed in.
in.
Clear
Clear away
away the
the impurity
impurity
Bad
Bad mounting
mounting
Replace
Replace mounting
mounting surface
surface or
or shaft
shaft
Large rotational inertia or dynamic
Large rotational inertia or dynamic
unbalance value
unbalance value
Reduce
rotational
inertia
or
Reduce
rotational
inertia
or
dynamic unbalance value.
dynamic unbalance value.
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