Electric motors Size 63 - 225 ATEX / IECEx
Faults
46
2016-05-23
Fault
Possible cause
Remedy
To be
remedied by
Bearing noises
Scoring on inner bearing
ring, e.g. from motor
starting up with bearing
locked
Replace bearing, avoid
vibrations when at a
standstill
Manufacturer
Motor is not running
smoothly
Imbalance due to belt
pulley or coupling
Balance exactly
Manufacturer
Machine fastening
insufficient
Check machine fastening
Qualified
specialist
Motor does not start up
Considerable drop in speed
Load moment too high
Check motor torque and
load moment
Qualified
electrician
Supply voltage too low
Check power supply
conditions
Qualified
electrician
Motor does not start up
Considerable drop in speed
Safety device is triggered
Phase interrupted
Check the mains
connection
Qualified
electrician
Motor does not start up
Motor is too warm
Considerable drop in speed
Safety device is triggered
Incorrect circuit
Adhere to wiring diagram
and type plate
Qualified
electrician
Motor is too warm
Considerable drop in speed
Safety device is triggered
Overload
Adhere to stipulations on
type plate
Qualified
electrician
Motor is too warm
Safety device is triggered
Too many switching
actuations
Observe rated operating
mode
Qualified
electrician
Motor is too warm
Ventilation insufficient
Check cooling air routes,
check direction of rotation
Qualified
electrician
Ventilation ducts soiled
Clean the ventilation ducts Qualified
specialist
Safety device is triggered
Coil or terminal short
circuit
Measure the insulation
resistance
Qualified
electrician
The start-up time has been
exceeded
Check the start-up
conditions
Qualified
electrician
Pos : 8. 20 /KN 2006-SM /nL---------- Abschnitts ende ---------- @ 8\ mod_1141997892953_0.doc @ 75471
Содержание N630 EX
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