Efficient Networks S120 manual Closed-loop current control, Current and torque limitation

Servo control

3.6 Current controller

Closed-loop current control

No settings are required for operating the current controller. Optimization measures can be taken in certain circumstances.

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.

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Figure 3-11 Current controller adaptation

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 usually need to be adjusted.

Commissioning with STARTER

In the STARTER commissioning tool, the "Current controller" parameter screen is selected with the icon in the toolbar:

Function diagrams (see SINAMICS S List Manual)

●5710 Current setpoint filters

●5714 Iq and Id controller

●5718 Interface to the Motor Module (gating signals, current actual values)

●5722 Specified field current, flux controller

76	Drive Functions
	Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4