Siemens SINAMICS G120C DP User Manual

Procedure
1. Set P3845 = 1: The converter accelerates the motor successively in both directions of rotation
and averages the measurement results of the positive and negative directions.
2. Switch on the motor (ON/OFF1 = 1).
3. The converter accelerates the motor.
During measurement, the converter signals the alarm A07961.
When the converter has determined all the intermediate points of the friction characteristic
without fault code F07963, the converter stops the motor.
You have recorded the friction characteristic.
❒
Adding friction characteristic for the torque setpoint
If you enable the friction characteristic (p3842=1), the converter adds the output of the
friction characteristic r3841 to the torque setpoint.
Parameter
Parameter Description Factory setting
p3820[D] Friction characteristic, value n0 15rpm
p3821[D] Friction characteristic, value n1 30rpm
p3822[D] Friction characteristic, value n2 60rpm
p3823[D] Friction characteristic, value n3 120rpm
p3824[D] Friction characteristic, value n4 150rpm
p3825[D] Friction characteristic, value n5 300 rpm
p3826[D] Friction characteristic, value n6 600 rpm
p3827[D] Friction characteristic, value n7 1200rpm
p3828[D] Friction characteristic, value n8 1500rpm
p3829[D] Friction characteristic, value n9 3000rpm
p3830[D] Friction characteristic, value M0 0Nm
p3831[D] Friction characteristic, value M1 0Nm
p3832[D] Friction characteristic, value M2 0Nm
p3833[D] Friction characteristic, value M3 0Nm
p3834[D] Friction characteristic, value M4 0Nm
p3835[D] Friction characteristic, value M5 0Nm
p3836[D] Friction characteristic, value M6 0Nm
p3837[D] Friction characteristic, value M7 0Nm
p3838[D] Friction characteristic, value M8 0Nm
p3839[D] Friction characteristic, value M9 0Nm
r3840.0…8 CO/BO: Friction characteristic status word -
r3841 CO: Friction characteristic, output - Nm
p3842 Activate friction characteristic 0
p3845 Activate friction characteristic plot 0
p3846[D] Friction characteristic plot ramp-up/ramp-down time 10s
p3847[D] Friction characteristic plot warm-up period 0s
Advanced commissioning
8.20Motor control
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK 317

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