Adjustments
Q3 15-150A
10/2018 - V01
26
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Optimization of the current controller
- Connect an oscilloscope across the current actual value
X3:21
- Current command value step-change
±1V X3:16
- Increase the current command value by 1V steps to ±10V
- Alter the P-amplification by means of the resistors R14 and R33
- Optimal adjustment
fig. 1
- Not permissible adjustment fig. 2
- Alter the integral part by means of the capacitors C80 and C81
Oscilloscope – current adjustment
Q3-strom-PF-QSZT-1-V161
graphic 1
setting optimal
graphic 2
amplifier too high
graphic 3
P-amplifier small
Note:
Any changes in the optimization of the current controller
must be checked by means of an oscilloscope.
