Siemens SINUMERIK 840D sl Commissioning Manual page 330

Drive tuning
10.5 Measuring functions (manual tuning)
To activate the function generator, select "Commissioning" operating area → "Automatic servo
optimization" → "Function generator".
NOTICE
Starting/stopping the function generator
The motion of the drive is not monitored when the function generator is activated.
With the corresponding ramp-function generator parameter settings (e.g. offset), the axis can
traverse to the end stop.
The travel-release drive test can be performed by the PLC with or without active monitoring of
the axis:
● With PLC
● Without PLC
The NC monitors the position and stops the function generator when the axis position goes
beyond the specified upper or lower limit. The scaling can be changed while the function
generator is running.
Operating mode of the function generator for servo and vector:
● Connector output
Operating modes of the function generator only for servo:
● Current setpoint after the filter
● Disturbing torque
● Speed setpoint after the filter
● Current setpoint before the filter
● Speed setpoint before the filter
Periodic or non-periodic signals with different waveforms are generated by the function
generator. The curve parameters vary depending on the signal type.
Connection point
● Connector
● Current setpoint after the filter
● Disturbing torque
● Speed setpoint after the filter
● Current setpoint before the filter
● Speed setpoint before the filter
● Position setpoint
Further actions:
● "Axis +", "Axis -" or "Direct selection >" softkeys to select the axis on which the signal is
applied (that to be excited).
● "Start" softkey to start the function generator.
330
System Waveform
● Rectangle
● Staircase
SINAMICS
● Triangle
● PRBS (white noise)
● Sinusoidal
NC
● Rectangle
● PRBS (white noise)
CNC Commissioning: NC, PLC, Drive
Commissioning Manual, 12/2019, A5E48312804B AA