4.4.20.3 Error triggering
Parameter co27[2] error level information was introduced in order to recognize
when the drive triggers an error.
The value of this parameter depends on the used mode. As additional information,
occurring error during the phase failure check are displayed in dr57 ident error info.
The possible error displays are dependent on the used mode. DC current set-
ting:
least square, max.
voltage reached
The maximum voltage was output for 50ms without reaching the current
setting.
Error, if e.g. two phases are missing.
least square, current
not symetrical
Current setting:
• for ASM => 0.5 * dr03
• for SM / IPM / SRM => 0.25 * dr03
Evaluation of two voltage vectors
Error, if not 30% of the expected value of a phase current is exceeded,
or the sign of a phase current disagrees with the expectation.
LeastSquareDC,
current not zero
The sum of the phase currents should be ZERO, if the sum is greater
than 30% of the expected total current, this error is triggered.
LeastSquareHf, no in-
formation
The level of information is too low, e.g. due to the existing maximum out-
put voltage or the minimum excitation frequency.
Error: the current of 5% InMot cannot be reached.
LeastSquareHf, nega-
tiv values
The detected inductance is <=NULL
LeastSquareHf, differ-
enz > limit
The inductance is calculated from the Hf signal and the maximum / mini-
mum value is determined. Error limit: Lmax / Lmin > 10
LeastSquareHf, phase
current too low
A current of 5% rated motor current is expected.
Error limit: the detected phase current is less than 1.5% rated current
In addition to a real phase failure, incorrect parameterization of the motor data
such as inductance, rated voltage of the motor, rated current of the motor can also
lead to triggering of the phase failure errorru01 22: ERROR ident.
To Next Page
Loading...
Need help?
General
