13 Drive Optimization using HMI Advanced
13.4 Frequency response measurement
Fig. 13-2 Example: Measurement results of a reference frequency response measurement
2. Set the required parameters in the measurement parameter screen.
3. Display of the measurement result on the screen with the soft key Display.
The reference frequency response measurement determines the transmission
response of the speed controller.
The response range should be as wide as possible and without resonance. It
may be necessary to install stop or low-pass filters. Particular care must be
taken to prevent resonance within the speed controller limit frequency range
(stability limit approx. 200–500Hz).
Alternatively, the interference frequency response can be recorded in order to
assess how well the control suppresses interference.
This parameter determines the height of the test signal amplitude. This should
give rise to only a very low speed of a few (approximately 1 to 2) revs/min at the
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SINUMERIK 840Di Manual (HBI) – 06.03 Edition