Siemens SINAMICS S120 Function Manual page 224

Drive functions

Hide thumbs Also See for SINAMICS S120:

Table of Contents

Vector control

5.4 Speed controller

Example of speed-dependent adaptation

For operation without encoder, a higher value is in p1464 than in p1465. As a consequence,

the behavior is inverted: K

Special case, encoderless operation in the field-weakening range

In encoderless operation, dynamic reduction for the field-weakening range can be activated

with p1400.0 = 1.

This dynamic reduction is activated to reduce the controller dynamic response in the field-

weakening range. Up to the field-weakening range, the higher controller dynamic of the

speed controller is kept.

Parameterization with STARTER

The "Speed controller" parameter screen is selected with the

STARTER commissioning tool.

Function diagrams (see SINAMICS S120/S150 List Manual)

Constant lower speed range (n < p1464)

Adaptation range (p1464 < n < p1465)

Constant upper speed range (n > p1465)

Speed controller-K

∼ flux setpoint

decreases proportionally with the flux setpoint (minimum: Factor 0.25).

Vector control - Speed controller adaptation (K

increases with increasing speed and T

icon in the toolbar of the

Function Manual, 11/2017, 6SL3097-4AB00-0BP5

Drive functions

Show Quick Links

Table of Contents