Current Controller - Siemens SINAMICS S120 Function Manual

Servo control

4.7 Current controller

4.7 Current controller
Generally, the current controller is only required for the first commissioning. No additional
settings are required in normal operation. You can further optimize the current controller
settings for special application.
Characteristics of the current controller
● Current controller acts as PI controller.
● 4 current setpoint filters
● Current and torque limitation
● Current controller adaptation is possible
● Closed-loop flux control is possible for an induction motor
Current and torque limitation
The current and torque limitations are initialized when the system is commissioned for the
first time and should be adjusted according to the application.
Current controller adaptation
The P gain of the current controller can be reduced (depending on the current) by means of
current controller adaptation. Current controller adaptation can be deactivated with the
setting p1402.2 = 0.
Figure 4-10
Flux controller (for induction motor)
The parameters for the flux controller are initialized when the system is commissioned for the
first time and do not need to be adjusted.
Commissioning with STARTER
The "Current controller" parameter screen is selected with the
STARTER commissioning tool.
112
Current controller adaptation
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Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Drive functions