An illegal value was detected for one or more of
the following quantities during data acquisition:
Calibration constants, balance values,
admittance, estimated physical parameters
(CHECK MOTOR and LEARN only). The measured
frequency differed from the nominal value.
During the learning period, eMCM learns the
motor only at the dominant frequency. In
inverter driven systems, it is important to set the
nominal frequency to this dominant frequency
otherwise, eMCM may never complete the
learning period. This condition is relaxed during
normal monitoring (IMPROVE and UPDATE)
where unlearned frequencies are updated
automatically
Illegal value for the mean frequency (IMPROVE,
UPDATE and
MONITOR)
The estimated admittance is inconsistent with
the measured RMS values for voltage and
current. This usually indicates excessive noise in
the data
(MONITOR, IMPROVE, UPDATE only) The
measured frequency was different than (i.e.
outside the threshold of) the LEARN frequency
An unexpectedly large value was calculated for
the modeling error. This is generally an indication
of an unstable line condition and will usually pass
Values for some quantities were checked and
found to be outside their allowable limits. The
values were reset to the upper or lower limits
Phase ordering is different from the values set
Instability was detected for the system
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