8400 HighLine | Parameter setting & configuration
Motor control (MCTRL)
V/f control (VFCplus + encoder)
130 L Firmware ≤ 05.00 - DMS 4.2 EN - 02/2010
5.5.1.1 Parameterising the slip regulator
The slip regulator is designed as a PI controller. For a better response to setpoint changes,
the setpoint speed or setpoint frequency is added as a feedforward control value to the
output (manipulating variable) of the slip regulator.
Unlike traditional speed controllers, the slip regulator only controls the slip.
In the Lenze setting, the configuration of the slip regulator provides robustness and
moderate dynamics.
Slip regulator gain Vp
The resolution of the speed sensor is decisive for the setting range of the slip regulator gain
Vp (C00972
) which leads to stable operational performance. Generally, there is a direct
relationship between encoder resolution and gain:
The higher the encoder resolution, the higher (harder) the gain can be set.
The table below contains the maximum and recommended slip regulator gains for
encoders with common encoder increments:
[5-1] Slip regulator gain Vp based on the encoder increment
Parameter Info Lenze setting
Value Unit
C00971/1 VFC: Controller limitation V/f + encoder 10.00 Hz
C00971/2
VFC: Slip limitation V/f + encoder 100.00 Hz
C00972
VFC: Vp V/f +encoder 0.100 Hz/Hz
C00973
VFC: Ti V/f +encoder 100.0 ms
Encoder increment
[increments/revolution]
Slip regulator gain Vp
Maximum Recommended
8 0,09 0,06
64 0,52 0,31
100 0,79 0,47
120 0,94 0,57
128 1,00 0,60
256 1,29 0,77
386 1,63 0,98
512 1,97 1,18
640 2,31 1,38
768 2,65 1,59
896 2,99 1,79
1014 3,33 2,00
1536 4,69 2,81
2048 6,05 3,63
3072 8,77 5,26
4096 11,49 6,90
efesotomasyon.com - Lenze
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