Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37) - Manual (Page 74)

9400 HighLine | Parameter setting & configuration
Motor interface
Initial commissioning | Optimise the switching performance of the inverter
74 Firmware 1.37 - 09/2006
L
Sequence
If all conditions are met, the motor is energised with a maximum direct current
corresponding to the lower of the following two values:
r Ideally, the first value should be reached, the second value is to ensure that the load on
the machine is not too high during the procedure.
During the procedure, the motor current rises up to the specified maximum value and falls
back to "0" to repeat the cycle with a negative current sign.
r The maximum value is reached four times.
r The chopper frequency is set to 8 kHz, sine-wave modulation. After the procedure, it is
reset to the original value.
– If the chopper frequency should be changed later during operation, the characteristic
will be adapted to the current chopper frequency.
r Presently, the characteristic is only used for the automatic selection of the motor
parameters. The use for sensorless control methods is in preparation.
After successful completion...
...the controller is inhibited automatically and the detected characteristic is set in the
controller.
r For a permanent acceptance of the characteristic, 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.
O
Tip!
The inverter error characteristic must only be detected again if the controller,
motor, or motor cable have changed e.g. due to an exchange.
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 and the detected
characteristic is not considered.
or
2 Rated device current ⋅
2 1.8 Rated motor current ⋅ ⋅