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4 Functional Description
4.8 Technical information
4.8.5 Overvoltage regulation
If the motor is operated as a generator, it produces energy. Usually power supply units are not able
to feed this energy back into the power line. For this reason, the supply voltage increases. Depend-
ing on the speed, the maximum allowable voltage can be exceeded.
In order to avoid severe damage to components, the 3564K024B CS and the MCBL 3003/06 S contain
a controller which adjusts the rotor displacement angle if a limit voltage (32 V) is exceeded. The
MCDC 3003/06 S contains a ballast circuit which is activated if a limit voltage (32 V) is exceeded. As
a result, the energy generated in the motor is converted, and the voltage of the electronics remains
limited to 32 V. This method protects the drive during generating operation and rapid braking.
4.8.6 Adjustment of the controller parameters
The controller parameters are already preset for common applications. However, in order to opti-
mally adapt the controller to the respective application, the controller parameters must be opti-
mized. Various theoretical and practical adjustment rules exist, but these will not be described in
more detail here. A simple, practical method of adjusting the controller is explained below.
Controller sampling rate
The digital controller operates at a sampling rate of 100 μs. When needed the sampling rate can be
increased up to 2 ms via the command SR.
The following controller parameters are available:
Command Function
Description
POR
Load Velocity Proportional Term
Load velocity controller amplification.
Value: 1 – 255.
I
Load Velocity Integral Term
Load velocity controller integral term
Value: 1 – 255.
PP
Load Position Proportional Term
Load position controller amplification.
Value: 1 – 255.
PD
Load Position D-Term
Load position controller D-term.
Value: 1 – 255.
SR
Load Sampling Rate
Set the controller sampling rate (ms/10).
Value 1...20
NOTE
