Siemens SINAMICS G120C Operating Instructions Manual page 154
Low voltage converters
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Also See for SINAMICS G120C:
- Operating instructions manual (470 pages) ,
- Compact operating instructions (92 pages) ,
- Getting started (68 pages)
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Commissioning
5.5 Quick commissioning with a PC.
1. Open the control panel.
2. Assume master control for the converter.
3. Set the "Drive enables"
4. Switch on the motor.
The converter starts the motor data identification. This measurement can take several
minutes.
Depending on the setting, after motor data identification has been completed, the converter
switches off the motor - or it accelerates it to the currently set setpoint.
5. If required, switch off the motor.
6. Relinquish the master control after the motor data identification.
7. Save the settings in the converter (RAM → EEPROM):
You have completed the motor data identification.
❒
Self-optimization of the speed control
If you have not only selected motor data identification with the motor stationary, but also
rotating measurement with self-optimization of the speed control, you must switch on the
motor again as described above and wait for the optimization run to finish.
Quick commissioning has been completed once the motor data identification has been
successfully completed.
Recommendations
• Induction motors
When commissioning induction machines, you are advised to proceed as follows:
encoder: p1960 = 1; with encoder: p1960 = 2) should be carried out. Since the induction
machine is idling, you can expect highly accurate results for the saturation characteristic
and the rated magnetizing current.
moment of inertia has changed. This is realized by selecting parameter p1960 (without
encoder: p1960 = 3; with encoder: p1960 = 4). During the speed optimization, the
saturation characteristic recording is automatically deactivated in parameter p1959.
•
When permanent-magnet synchronous motors are commissioned, the speed controller
should be tuned (p1900 = 3 or p1960 > 0) when the load is connected.
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– Before connecting the load, a complete "rotating measurement" (p1900 = 3 or without
– When the load is connected, speed controller tuning should be repeated because the total
Permanent-magnet synchronous motors
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
SINAMICS G120C Converters
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