"Velocity direct" operating mode

Properties

  • Speed control
  • Specification of the speed via the "Velocity" variable in process data object STM Velocity.

Possible "Predefined PDO Assignments"

Parameter

Index
(hex)

Name

Description

Unit

Data type

Default value

8010:03

Nominal voltage

The DC link voltage UP

10 mV

UINT

5000dec

8011:01

Kp factor (curr.)

Proportional component of the current controller

 

UINT

150dec

8011:02

Ki factor (curr.)

Integral component of the current controller

 

UINT

10dec

Optional parameters

To use step loss detection and/or load angle detection without encoder, set the following parameters additionally:

Index
(hex)

Name

Description

Unit

Data type

Default value

8010:05

Motor EMF

The voltage constant ke for calculating the back electromotive force (BEMF)

The voltage constant can be found in the data sheet of the motor. Alternatively, you can determine it experimentally.

mV/
(rad/s)

UINT

0

8010:0A

Motor coil inductance

The winding inductance of the motor.

0.01 mH

UINT

0