Lenze 9400 Manual de usuario descargar pdf (Pagina 197)

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06 197

5 Motor interface

5.7 V/f control (VFCplus)

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5.7 V/f control (VFCplus)

This function extension is available from software version V3.0!

For the closed loop V/f control, the speed controller (also called "slip regulator") also has to be

parameterised for the speed feedback.

• C00971

serves to define the influence of the speed controller in [%] with regard to the reference

speed of the motor (C00011

). If the influence is adjusted to the slip expected under normal

operating conditions, the motor cannot accelerate in an uncontrolled way when the encoder

fails.

• To activate the speed controller, parameterise the gain (C00972

) and the reset time (C00973).

Short overview: Parameters for speed controller

 Note!

The descriptions in the chapter "V/f control (VFCplus)" also apply to the V/f control

closed loop.

( 181)

When this motor control mode is used, the operation can be continued if the encoder

fails. For this, the encoder monitoring must be parameterised to "Warning". If the

encoder fails, the speed controller is "frozen" so that the slip correction via the speed

controller is maintained.

Parameter Info Lenze setting

Value Unit

C00971 VFC: Influence - speed controller 10.00 %

C00972

VFC: Gain - speed controller 0.000 Hz/rpm

C00973

VFC: Reset time - speed controller 6000.0 ms

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