Actual Value Processing - Siemens SINAMICS S120 Commissioning Manual

Commissioning
5.7 Basic parameterization of the drive objects
Entering the sampling times manually
If you have set "Expert" in p0112, you can manually configure each of the following sampling
times for the following control loops (p0115):
• p0115[0]: Sampling times for internal control loops, current controller
• p0115[1]: Sampling times for internal control loops, speed controller
• p0115[2]: Sampling times for internal control loops, flux controller
• p0115[3]: Sampling times for internal control loops, setpoint channel
• p0115[4]: Sampling times for internal control loops, position controller
• p0115[5]: Sampling times for internal control loops, positioning
• p0115[6]: Sampling times for internal control loops, technology controller
Note
You cannot set the values arbitrarily. The rules for setting the sampling times can be found in
Chapter "System rules, sampling times and DRIVE-CLiQ wiring" of the SINAMICS S120 Function
Manual Drive Functions.
Enter the sampling times for the internal control loops.
Setting the pulse frequency
Set the pulse frequency via p1800.
5.7.3.8

Actual value processing

Overview
The actual value processing is used to determine the cyclic and absolute actual values of the
encoder, and to transfer the encoder position from the drive to an open-loop control/position
control.
Preparing actual values
To transfer the encoder position from the drive to an open-loop control / position control, the
"Cyclical actual value" = Gn_XIST1 and "Absolute actual value" = Gn_XIST2 (n = 1 or 2, number
of the encoder) data is used in a telegram. The values can be set only for absolute encoders.
• The incremental position change of the encoder is transferred to the controller in the
"Cyclical actual value" Gn_XIST_1. The drive evaluates only the counting pulses of the
encoder, which it then uses to form the "Cyclical actual value".
• The cyclical values of the encoder requested by the controller prior to the transfer are not
transferred in the "Absolute actual value" = Gn_XIST2.
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Commissioning with Startdrive
Commissioning Manual, 06/2020, 6SL3097-5AA10-0BP2