Siemens SINAMICS G120C DP User Manual

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 identi󹪝cation. This measurement can take several
minutes.
Depending on the setting, after motor data identi󹪝cation has been completed, the converter
switches o󹪜 the motor - or it accelerates it to the currently set setpoint.
5. If required, switch o󹪜 the motor.
6. Relinquish the master control after the motor data identi󹪝cation.
7. Save the settings in the converter (RAM → EEPROM):


You have completed the motor data identi󹪝cation.
❒
Self-optimization of the speed control
If you have not only selected motor data identi󹪝cation 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 󹪝nish.
Quick commissioning has been completed once the motor data identi󹪝cation has been
successfully completed.
Recommendations
• Induction motors
When commissioning induction machines, you are advised to proceed as follows:
– Before connecting the load, a complete "rotating measurement" (p1900 = 3 or without
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.
– When the load is connected, speed controller tuning should be repeated because the total
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.
• Permanent-magnet synchronous motors
When permanent-magnet synchronous motors are commissioned, the speed controller
should be tuned (p1900 = 3 or p1960 > 0) when the load is connected.
Commissioning
5.5Quick commissioning with a PC.
SINAMICS G120C Converters
152 Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK

Siemens SINAMICS G120C DP Specifications

General

Protection Rating	IP20
Frequency Range	0 to 650 Hz
Control Modes	V/f, sensorless vector control
Communication Interfaces	PROFIBUS DP
Ambient Temperature	-10 to +50 °C (without derating), -10 to +60 °C (with derating)
Overload Capacity	150 % rated current for 60 s, 200 % rated current for 3 s
Storage Temperature	-40 to +70 °C
Relative Humidity	5% to 95% (non-condensing)
Voltage Range	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Output Voltage	0 V to Supply Voltage