Operating Modes
Parameter manual
b maXX
BM3000
Document no.: 5.12001.07
Baumüller Nürnberg GmbH
662
4.8
Figure 215:
Compensating controller for acceleration
If the speed ramp was set too steep at a high load torque, it can happen that the drive
cannot be accelerated furthermore. In this case the frequency can be reduced at a con-
stant frequency (bit 7 of
) to enable the drive acceleration.
4.8.12.2 Current control
If a specified torque is required to operate at low frequencies the current control at low
frequencies (bit 3 of
) is recommended. An additional voltage (
) is ap-
plied at the set frequency threshold (
) via a PI controller, so that at least the set
current (
) or maximum current (settable via bit 8 of parameter
) is ap-
plied to the motor.
Figure 216:
Current control
4.8.12.3 Parameter overview
Functional block:
FbUfChart [166]
