Speed Controller - Lenze i55AE125B Manual

8.4.5

Speed controller

The speed controller is automatically set if one of the following optimisations is carried out:
4Motor selection from motor catalogue
4Automatic motor identification (energized)
4Automatic motor calibration (non-energized)
For typical applications, a manual adaptation of the parameters of the speed
controller is not recommended. A wrong setting may have a negative effect on
the control. For special applications, contact the manufacturer before adapting
the parameters.
Details
The speed controller has an influence in the following motor control types:
Servo control (SC ASM)
•
Sensorless control (SL PSM)
•
Sensorless vector control (SLVC)
•
The automatically calculated settings for the speed controller enable an optimal control
behaviour for typical load requirements:
Minimum speed loss
•
①
Minimum settling time
•
②
Minimum overshoot
•
③
Setting notes
If oscillations occur during operation after high load requirements:
Reduce gain of the speed controller in
•
Increase reset time of the speed controller in
•
If the speed loss is too high or the settling time too long during operation with high load
requirements:
Increase gain of the speed controller in
•
If the gain is set too high or the reset time too low, the speed control loop can
become unstable!
Parameter Name / value range / [default setting]
0x2900:001 Speed controller settings: Gain
(P332.01) (Speed controller: Gain)
0.00000 ... [0.00193]* ... 20000.00000 Nm/rpm
* Default setting depending on the size.
0x2900:002 Speed controller settings: Reset time
(P332.02) (Speed controller: Reset time)
1.0 ... [80.0]* ... 6000.0 ms
* Default setting depending on the size.
0x2904 Actual speed filter time
0.0 ... [2.0] ... 50.0 ms
^ 197
^ 199
^ 200
Load requirement
Speed setpoint
0x2900:001 (P332.01).
0x2900:002
0x2900:001 (P332.01).
Speed
(P332.02).
Info
Gain factor Vp of the speed controller.
Reset time Ti of the speed controller.
Filter time for the actual speed value.
Motor control
Optimisation of the control loops
Speed controller
211