Servo control
4.21 Voltage precontrol
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
195
Step 2: Determine the voltage precontrol in several optimization runs
1.
To activate voltage precontrol, enter a value of "100" into p1703.
2.
Proceed as follows to determine the dead time of the current controller reference model:
–
Activate p0340 = 4, and automatically calculate the closed-loop control parameters.
- Or -
–
Perform a One-Button-Tuning (Page 116) with p5271.4 = 1 and p5271.7 = 1
(p5300 = 1).
3.
Measure a current controller setpoint step and correct the value p1703.
–
Repeat the current controller setpoint step until the current actual value reaches the
setpoint without any overshoot or undershoot (see the following sample displays).
Figure 4-29 Voltage precontrol p1703 too low
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