Function Generator - Siemens SINAMICS S120 Commissioning Manual

3.2.1

Function generator

Description
The function generator is part of the STARTER commissioning tool.
The ramp-function generator can be used, for example, for the following tasks:
● To measure and optimize control loops.
● To compare the dynamic response of coupled drives.
● To specify a simple traversing profile without a traversing program.
The ramp-function generator can be used to generate different signal shapes.
In the "Connector output" operating mode (r4818), the output signal can be injected into the
control loop via the BICO interconnection.
In the "SERVO" mode and depending on the mode set, this setpoint can also be injected into
the control structure, e.g. as speed setpoint, disturbing torque or current setpoint. The impact
of superimposed control loops is automatically suppressed.
Properties
● Operating modes of the ramp-function generator for servo and vector
● Operating modes of the function generator for a servo drive:
● Connecting to each drive of the topology is possible.
● The following parameterizable signal shapes can be set:
● An offset is possible for each signal. The ramp-up to the offset is parameterizable. Signal
● Restriction of the output signal to the minimum and maximum value settable.
Commissioning Manual
Commissioning Manual, (IH1), 01/2012, 6SL3097-4AF00-0BP2
– Connector output
– Speed setpoint downstream of filter (speed setpoint filter)
– Speed setpoint upstream of filter (speed setpoint filter)
– Disturbing torque (downstream of current setpoint filter)
– Current setpoint downstream of filter (current setpoint filter)
– Current setpoint upstream of filter (current setpoint filter)
– Square-wave
– Staircase
– Triangular
– Sinusoidal
– PRBS (pseudo random binary signal, white noise)
generation begins after the ramp-up to the offset.
Diagnostics
3.2 Diagnostics via STARTER
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