Lenze EVS9332xS Bedienungsanleitung PDF herunterladen (Seite 158)

Function library

Function blocks

3.2.39 Internal motor control (MCTRL)

3−106

EDSVS9332S−EXT EN 2.0

3.2.39.4 Speed controller

The speed controller is designed as an ideal PID controller.

Parameter setting

If you select a motor via C0086, the parameters are preset so that only a few (if any) adaptations to

the application are necessary.

l Parameterisation of the proportional gain V

in C0070:

– Enter approx. 50 % of the speed setpoint

– Increase C0070 until the drive becomes unstable (observe motor noises)

– Reduce C0070 until the drive runs stable again

– Reduce C0070 to approx. 50 %

l Parameterisation of the reset time T

in C0071:

– Reduce C0071 until the drive becomes unstable (observe motor noises)

– Increase C0071 until the drive runs stable again

– Set C0071 to the double value

l Parameterisation of the derivative gain T

in C0072:

– Increase C0072 during operation until an optimum behaviour is achieved.

Signal limitation

When the drive outputs the max. torque, the speed controller operates within the limits.

l The drive cannot follow the speed setpoint.

l This state is indicated with MCTRL−MMAX = HIGH.

Setting the integral component

To enter defined starting values for the torque the integral component of the n−controller can be set

externally (e.g. when using the brake control).

l MCTRL−I−LOAD = HIGH

– The n−controller accepts the value at input MCTRL−I−SET as its integral component.

– The value at input MCTRL−I−SET acts as a torque setpoint for the motor control.

l MCTRL−I−LOAD = LOW

– Function is switched off.

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Lenze EVS9332xS Bedienungsanleitung Seite 158