Background: For the i950 units in the 230V unit version, the default settings of the current limiting controller (Imax controller) are selected too dynamically for some motor types.
As a short-term measure, the settings of the Imax controller can therefore be adjusted as follows:
Imax controller dynamics (0x2B02): Prevents interaction between the voltage and current limitation in the field weakening range and thus avoids oscillation in the motor current.
Reduce the Imax controller gain (0x2B02:1) by half, and
Increase Imax controller reset time (0x2B02:2) by a factor of 2.
The behaviour described has so far only occurred when operating Lenze servo asynchronous motors in the V/f characteristic control motor operating mode.