X90 mobile modules
X90 mobile system User's manual V 1.20 - Translation of the original manual
277
Electrical errors
Occasionally, bridges in the rotor bars or short circuit rings occur. They occur as a result of overloading as well as
aging and the ongoing oscillation load. This leads to a very uneven distribution of the induction current in the rotor.
Failure causes
Overloading
Aging
Dust entry
Foreign bodies
Short circuits in coil
PeakHighFrequency
CrestFactorHighFrequency
Vdi3832KtHighFrequency
PeakRaw
CrestFactorRaw
SkewnessRaw
KurtosisRaw
Vdi3832KtRaw
RmsHighFrequency
RmsAccRaw
RmsVelRaw
Iso10816
RmsAccEnvelope
RmsVelEnvelope
FrequencyBandRmsVelEnvelope
FrequencyBandRmsAccEnvelope
FrequencyBandRmsAccRaw
FrequencyBandRmsVelRaw
FrequencyBandNoiseAccEnvelope
FrequencyBandNoiseVelEnvelope
FrequencyBandNoiseAccRaw
FrequencyBandNoiseVelRaw
Loose rods, rod breakage
Increased running noise
Break in short circuit ring
Magnetic imbalance
Potential failures
Characteristic values
Suitability of the respective
characteristic values to monitor
the potential failures:
Very good
Good
Less good
Not assessed
Frequency of the cause of failure in these
Potential failures:
Frequent
Depends on where used
Rare to never
Not assessed
For the meaning of individual characteristic values, see
"Characteristic values" on page 170
and
"Configuration"
on page 193
.