What can be the reason that in case of vector control the drive does not reach the demanded torque / speed above the rated speed?
Answer:
To be able to operate the motor with stall protection, the controller reduces the torque or current limits in the field setting range (above the rated speed).
Effect: the maximum current set is not achieved. The maximum torque available in the field setting range reduces.
Remedy:
Increase MCTRL-HI/LO-M-LIM to 200 %.
Sequence of the torque limit in case of vector control:
1. MCTRL-HI/LO-M-LIM = 100 %; reduction with 1/n from nN
2. MCTRL-HI/LO-M-LIM = 200 %; reduction with 1/n from 2 nN
