4.1 Motorized Potentiometer - Siemens SINAMICS S120 Function Manual

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Extended setpoint channel

4.1 Motorized potentiometer

Motorized potentiometer

Function description

The "Motorized potentiometer" function is used to simulate an electromechanical

potentiometer for setpoint input.

You can switch between manual and automatic mode for setpoint input. The specified setpoint

is routed to an internal ramp-function generator. Setting values, start values and braking with

OFF1 do not require the ramp-function generator of the motorized potentiometer.

The output of the ramp-function generator for the motorized potentiometer is available for

further interconnection via a connector output (e.g. interconnection to connector input p1070 -

CI: Main setpoint, an additional ramp-function generator is then active).

Features of manual operation (p1041 = 0)

For manual operation, the function is characterized by the following features:

● Separate binector inputs for Raise and Lower are used to adjust the input setpoint:

– p1035 BI: Motorized potentiometer, setpoint, raise

– p1036 BI: Motorized potentiometer, setpoint, lower

● Invert setpoint (p1039)

● Configurable ramp-function generator, e.g.:

– Ramp-up/ramp-down time (p1047/p1048) referred to p1082

– Setting value (p1043/p1044)

– Activate/deactivate initial rounding (p1030.2 = 1/0)

● Non-volatile storage of the setpoints via p1030.3 = 1

● Configurable setpoint for Power ON (p1030.0)

– Starting value is the value in p1040 (p1030.0 = 0)

– Starting value is the stored value (p1030.0 = 1)

Features of automatic mode (p1041 = 1)

For automatic mode, the function is characterized by the following features:

● The input setpoint is specified via a connector input (p1042).

● The motorized potentiometer acts like a "normal" ramp-function generator.

● Configurable ramp-function generator, e.g.:

– Activate/deactivate (p1030.1 = 1/0)

– Ramp-up/ramp-down time (p1047/p1048)

– Setting value (p1043/p1044)

– Activate/deactivate initial rounding (p1030.2 = 1/0)

Function Manual, 06/2019, 6SL3097-5AB00-0BP2

Drive functions