July 2013 7.7 Special functions 1089
Recommended
types of filters
Experience has shown that the band rejection of the multifunction filters is to
be used for damping oscillations in the speed controller.
On the other hand, the tendency of the position controller to oscillate should
be counteracted with IPC (Integral Phase Compensation). Only if this
adjustment does not lead to the desired result can the multifunction filters
such as the phase increase (better, since it does not facilitate oscillations at
lower frequencies as much) or the band-rejection filter be used.
Since the ambient conditions can be so different, the use of the filters must
be checked separately in every case. The TNCopt PC software from
HEIDENHAIN should always be used, so that the sequence of the adjustment
matches the ideal case. This manual can only present recommended
guidelines and procedures.
Possible settings
for multifunction
filters
Filter 1 Filter 2 ... Filter 6
Selection of filter type
0 = Filter not active
1 = PT2 low-pass (speed ctrl.)
2 = Band-rejection (speed ctrl.)
3 = Phase increase (speed ctrl.)
11 = PT2 low-pass (position ctrl.)
12 = Band-rejection (position ctrl.)
13 = Phase increase (position ctrl.)
MP2562.x MP2563.x ... MP2567.x
PT2 low-pass: No effect
Band rejection: Damping [dB]
Phase increase: Phase [0- 90°]
MP2542.x MP2543.x ... MP2547.x
PT2 low-pass: Cutoff freq. [Hz]
Band-rejection: Center freq.
[Hz]
Phase increase: Center freq.
[Hz]
MP2552.x MP2553.x ... MP2557.x
PT2 low-pass: No effect
Band-reject.: Bandwidth [Hz]
Phase increase: Bandwidth
[Hz]
MP2572.x MP2573.x ... MP2577.x
To Next Page
Loading...
