Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37) - Manual (Page 77)

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Firmware 1.37 - 09/2006 77
9400 HighLine | Parameter setting & configuration
Motor interface
Initial commissioning | Set motor parameters
Sequence
If all conditions are met, the impedance of the controlled system is determined for approx.
30 different frequencies. These valued are used to determine the electrical machine
parameters by means of a mathematical procedure.
r Since the procedure starts with very low frequencies and always considers several
complete periods, the whole process takes approx. 3 minutes.
r During the procedure, the motor is energised with a current, the r.m.s. value of which
corresponds to the lower of the following two values:
After successful completion...
...the controller is automatically inhibited and the selected motor data are set in the
corresponding codes.
r For a permanent acceptance of the settings, the parameter set must be saved
( C00002 = "11").
r The device command C00002 = "42" serves to deactivated the controller inhibit
automatically set by the procedure.
If an error occurs
If an error occurs during the procedure or the pulse inhibit gets active (e.g. due to short-
time undervoltage), the procedure is terminated with controller inhibit without changing
the codes for the motor parameters.
or
Note!
During the procedure, the motor should not rotate.
With synchronous machines, this cannot always be ensured. Although the
current flow is produced in the torque-neutral axis, asymmetries in the machine
lead to a rotation of the rotor.
• In such a case, the measurement would be useless and would have to be
repeated.
• As a remedy, we recommend to use a holding brake.
With asynchronous machines, slight rotations might possibly occur. Their
influence on the measurements is, however, not worth mentioning.
• In case of uncertainties, the measurement should be repeated several times
to check if the results for the stator resistance, the leakage inductance of the
stator and the rotor resistance differ widely. This should not be the case.
• The magnetising inductance and the cos(ϕ) values are not that important for
the diagnostics, because they are strongly non-linear.
Rated device current
1
2
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Rated motor current ⋅