Siemens SINAMICS G120D Operating Instructions Manual page 242

Advanced commissioning
8.16 Motor control
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
p3820[D]
p3821[D]
p3822[D]
p3823[D]
p3824[D]
p3825[D]
p3826[D]
p3827[D]
p3828[D]
p3829[D]
p3830[D]
p3831[D]
p3832[D]
p3833[D]
p3834[D]
p3835[D]
p3836[D]
p3837[D]
p3838[D]
p3839[D]
r3840.0...8
r3841
p3842
p3845
p3846[D]
p3847[D]
240
Description
Friction characteristic, value n0
Friction characteristic, value n1
Friction characteristic, value n2
Friction characteristic, value n3
Friction characteristic, value n4
Friction characteristic, value n5
Friction characteristic, value n6
Friction characteristic, value n7
Friction characteristic, value n8
Friction characteristic, value n9
Friction characteristic, value M0
Friction characteristic, value M1
Friction characteristic, value M2
Friction characteristic, value M3
Friction characteristic, value M4
Friction characteristic, value M5
Friction characteristic, value M6
Friction characteristic, value M7
Friction characteristic, value M8
Friction characteristic, value M9
CO/BO: Friction characteristic status word
CO: Friction characteristic, output
Activate friction characteristic
Activate friction characteristic plot
Friction characteristic plot ramp-up/ramp-down time
Friction characteristic plot warm-up period
Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH
Factory setting
15 rpm
30 rpm
60 rpm
120 rpm
150 rpm
300 rpm
600 rpm
1200 rpm
1500 rpm
3000 rpm
0 Nm
0 Nm
0 Nm
0 Nm
0 Nm
0 Nm
0 Nm
0 Nm
0 Nm
0 Nm
-
- Nm
0
0
10 s
0 s
Converter with the control units CU240D-2