Siemens SINAMICS S120 System Manual page 88

Commissioning
4.17 Editing the valve characteristic
Start of the characteristic measurement
You start the characteristic measurement with the "Start meas."softkey. The current axis
position is displayed in a bar diagram. The measurement may take several minutes. The
labeling of the "Start meas." softkey changes to "Stop meas.". All other softkeys are
disabled.
You can stop the measurement with the "Stop meas." softkey. No measured characteristic is
then displayed in the diagram. An error message is not displayed.
Result of the characteristic measurement
If the drive has completed the measurement, the measurement results are available in the
parameters r1961[0..511] and r1962[0..511].
After completion of the measurement, the success or failure is output as a message. The
softkeys are activated again.
If the measurement is successful, the measured data is displayed in the diagram as a
characteristic. An automatic tuning of the set characteristic is performed. The tuned, set
characteristic is displayed in the "Graphic tuning" dialog.
If the measurement fails, an error message is output. Rectify the problem and perform the
measurement again.
To cancel the drive disable, you must press the RESET button on the machine control panel.
Further actions
● Start the measurement of the valve characteristic with the "Start meas." softkey. The
labeling of the "Start meas." softkey changes to "Stop meas." after the measurement is
started. All other softkeys are disabled during the measurement. The measurement
progress is displayed in a progress bar.
● Stop the measurement of the valve characteristic with the "Stop meas." softkey.
● Use the "Meas. parameters >" softkey to open the "Measurement parameters" dialog.
The measurement parameters are displayed there in a parameter list.
● Use the "Zoom >" softkey to display the "Zoom" softkey bar. The "Measurement" dialog
remains unchanged.
● Use the "Cancel" softkey to return to the "Valve characteristics measurement" dialog.
● Use the "OK" softkey to open the "Graphic tuning" dialog. An Automatic measurement is
performed once after a measurement.
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• r1961[0...511]
• r1962[0...511]
88
Valve identification characteristic voltage
Valve identification characteristic velocity
System Manual, 04/2015, 6SL3097-4BA00-0BP1
Hydraulic Drive