Siemens SINAMICS G120XA, Operating Instructions Manual, Page: 516 / 918

Note
For p1334 = 0, the starting frequency of the slip compensation is automatically set to 6 % of the rated motor frequency.
p1335[0...n] Slip compensation scaling / Slip comp scal
Access level: 3 Calculated: CALC_MOD_ALL Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6300, 6310,
6853
Min:
0.0 [%] Max:
600.0 [%] Factory setting:
0.0 [%]
Description: Sets the setpoint for slip compensation in [%] referred to r0330 (motor rated slip).
p1335 = 0.0 %: Slip compensation deactivated.
p1335 = 100.0 %: The slip is completely compensated.
Dependency: Prerequisite for a precise slip compensation for p1335 = 100 % are the precise motor parameters (p0350 ... p0360).
If the parameters are not precisely known, a precise compensation can be achieved by varying p1335.
For U/f control types with Eco optimization (4 and 7), the slip compensation must be activated in order to guarantee
correct operation.
For p0096 = 1 (Standard Drive Control), the scaling of the slip compensation is set as default to 100%.
Note
The purpose of slip compensation is to maintain a constant motor speed regardless of the applied load. The fact that
the motor speed decreases with increasing load is a typical characteristic of induction motors.
For synchronous motors, this effect does not occur and the parameter has no effect in this case.
For the open-loop control modes p1300 = 5 and 6 (textile sector), the slip compensation is internally disabled in order
to be able to precisely set the output frequency.
If p1335 is changed during commissioning (p0010 > 0), then it is possible that the old value will no longer be able to be
set. The reason for this is that the dynamic limits of p1335 have been changed by a parameter that was set when the
drive was commissioned (e.g. p0300).
p1335[0...n] Slip compensation scaling / Slip comp scal
CUG120XA_USS
(PM330)
Access level: 3 Calculated: CALC_MOD_ALL Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6300, 6310
Min:
0.0 [%] Max:
600.0 [%] Factory setting:
100.0 [%]
Description: Sets the setpoint for slip compensation in [%] referred to r0330 (motor rated slip).
p1335 = 0.0 %: Slip compensation deactivated.
p1335 = 100.0 %: The slip is completely compensated.
Dependency: Prerequisite for a precise slip compensation for p1335 = 100 % are the precise motor parameters (p0350 ... p0360).
If the parameters are not precisely known, a precise compensation can be achieved by varying p1335.
For U/f control types with Eco optimization (4 and 7), the slip compensation must be activated in order to guarantee
correct operation.
Note
The purpose of slip compensation is to maintain a constant motor speed regardless of the applied load. The fact that
the motor speed decreases with increasing load is a typical characteristic of induction motors.
For synchronous motors, this effect does not occur and the parameter has no effect in this case.
For the open-loop control modes p1300 = 5 and 6 (textile sector), the slip compensation is internally disabled in order
to be able to precisely set the output frequency.
If p1335 is changed during commissioning (p0010 > 0), then it is possible that the old value will no longer be able to be
set. The reason for this is that the dynamic limits of p1335 have been changed by a parameter that was set when the
drive was commissioned (e.g. p0300).
Parameters
7.3 Parameters
SINAMICS G120XA converter
514
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB