Servo Control - Siemens SINAMICS S120 Function Manual

Operating Modes

Servo control

3.1 Servo control
This type of control enables operation with an extremely high dynamic response
and precision for a motor with a motor encoder.
3.1.1 Speed controller
The speed controller controls the motor speed using the actual values from the
encoder (operation with encoder) or the calculated actual speed value from the
electric motor model (operation without encoder).
Properties
S Speed setpoint filter
S Speed controller adaptation
Note
Speed and torque cannot be controlled simultaneously. If speed control is
activated, this has priority over torque control.
Limitations
The maximum speed p1082[D] is defined with default values for the selected motor
and becomes active during commissioning. The ramp-function generators refer to
this value.
Fig. 3-1
3-64
Speed limits
© Siemens AG, 2005. All rights reserved
SINAMICS S120 Function Manual, 06/05 Edition