10.2.6
TORQUE STABILATOR FUNCTION
P3.1.4.13.1 TORQUE STABILATOR GAIN (ID 1412)
Use this parameter to set the gain of the torque stabilator in an open loop control operation.
P3.1.4.13.2 TORQUE STABILATOR GAIN AT FIELD WEAKENING POINT (ID 1414)
Use this parameter to set the gain of the torque stabilator at field weakening point in an open
loop control operation.
The torque stabiliser stabilises the possible oscillations in the estimated torque.
Two gains are used. TorqStabGainFWP is a constant gain at all the output frequencies.
TorqStabGain changes linearly between the zero frequency and the field weakening point
frequency. The full gain is at 0 Hz and the gain is zero at the field weakening point. The figure
shows the gains as a function of output frequency.
P FieldWeakeningPoint
P TorqStabGainFWP
Effective gain
FreqOut
Gain
P TorqStabGain
Fig. 26: The torque stabilator gain
P3.1.4.13.3 TORQUE STABILATOR DAMPING TIME CONSTANT (ID 1413)
Use this parameter to set the damping time constant of the torque stabiliser.
P3.1.4.13.4 TORQUE STABILATOR DAMPING TIME CONSTANT FOR PM MOTORS (ID 1735)
Use this parameter to set the damping time constant of the torque stabiliser for permanent
magnet or reluctance motors.
P3.1.4.13.5 TORQUE STABILATOR FILTER TIME CONSTANT (ID 15650)
Use this parameter to set the lowpass filtering time constant of the torque stabilizer.
P3.1.4.13.6 TORQUE STABILATOR FILTER TIME CONSTANT FOR PM MOTORS (ID 15651)
Use this parameter to set the lowpass filtering time constant of the torque stabilizer for
permanent magnet or reluctance motors.
10.2.7
ADVANCED SENSORLESS CONTROL
Use the advanced sensorless control function in applications where good speed accuracy or
high performance at low speed is necessary, but encoder speed feedback is not used. With
VACON · 210
PARAMETER DESCRIPTIONS
10
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