Siemens SINAMICS G120 List Manual page 357

03
08
r3841 CO: Friction characteristic output / Frict outp
Access level: 2
Can be changed: -
Unit group: 7_1
Min
- [Nm]
Description: Display and connector output for the torque of the friction characteristic dependent on the speed.
Dependency: Refer to: p3842
p3842 Friction characteristic activation / Frict act
Access level: 2
Can be changed: T
Unit group: -
Min
0
Description: Setting to activate and de-activate the friction characteristic.
Value: 0:
1:
Dependency: Refer to: r3841, p3845
p3845 Friction characteristic record activation / Frict rec act
Access level: 2
Can be changed: T
Unit group: -
Min
0
Description: Setting for the friction characteristic record.
After the next switch-on command, the friction characteristic is automatically recorded.
Value: 0:
1:
2:
3:
Dependency: When selecting the friction characteristic measurement, the drive data set changeover is suppressed.
For linear drives (refer to r0108 bit 12) it is not permissible to carry out the friction characteristic measurement for
mechanical systems that limit travel.
Danger: For drives with a mechanical system that limit the distance moved, it must be ensured that during recording, the
friction characteristic is not reached. If this is not the case, then it is not permissible that the measurement is carried
out.
Notice: To permanently accept the determined settings they must be saved in a non-volatile fashion (p0971, p0977).
Note: When the friction characteristic record is active, it is not possible to save the parameters (p0971, p0977).
When the friction characteristic record is active (p3845 > 0), it is not possible to change p3820 ... p3829, p3830 ...
p3839 and p3842.
When recording the friction characteristic, in addition to the friction, the motor losses are also determined (e.g. iron
losses, eddy current losses and re-magnetizing losses). A differentiation is not made between these individual loss
components. We recommend that a motor temperature sensor is used because torque deviations can also be
emulated/mapped on the characteristic due to the thermal influence.
SINAMICS G120 Control Units CU240B-2/CU240E-2
List Manual (LH11), 01/2016, A5E33839529
Friction characteristic record aborted
Friction characteristic positive direction
Friction characteristic de-activated
Friction characteristic activated
Friction characteristic record de-activated
Friction char record activated for all directions
Friction char record activated for positive direction
Friction char record activated for negative direction
Yes
Yes
Calculated: -
Scaling: p2003
Unit selection: p0505
Max
- [Nm]
Calculated: -
Scaling: -
Unit selection: -
Max
1
Calculated: -
Scaling: -
Unit selection: -
Max
3
2 Parameters
2.2 List of parameters
No
No
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 7010
Factory setting
- [Nm]
Data type: Integer16
Dyn. index: -
Func. diagram: 7010
Factory setting
0
Data type: Integer16
Dyn. index: -
Func. diagram: 7010
Factory setting
0
-
-
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