Lenze 8400 HighLine - Manual (Page 217)

Lenze · 8400 HighLine · Referenzhandbuch · DMS 10.0 EN · 06/2014 · TD05/TD14
217
5 Motor control (MCTRL)
5.8 Sensorless control for synchronous motors (SLPSM)
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
How to optimise the speed controller setting by means of the ramp response:
1. Run a typical speed profile and record the ramp response of the speed using the data
logger.
• Motor control variables to be recorded:
nSpeedSetValue_a (speed setpoint)
nMotorSpeedAct_a (actual speed value)
2. Evaluate the ramp response:
• Solid line = ramp response (actual speed value)
• Dash line = speed setpoint
3. Change gain Vp in C00070/3 and reset time Tn in C00071/3 .
4. Repeat steps 1 ... 3 until the optimum ramp response is reached.

Note!
For an optimal setting, we recommend to determine the mass inertia (optimal response
to setpoint changes) first.
 Optimise response to setpoint changes and determine mass inertia ( 218)
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