U/F Control Slip Compensation Starting Frequency / Slip Comp Start; Slip Compensation Scaling / Slip Comp Scal; Slip Compensation Limit Value / Slip Comp Lim Val; Co: Actual Slip Compensation / Slip Comp Act Val - Siemens SINAMICS G150 Manual

2 Parameters
2.2 List of parameters
Note: For p1333 = 0 Hz, the FCC starting frequency is automatically set to 6 % of the rated motor frequency.
p1334[0...n]

U/f control slip compensation starting frequency / Slip comp start

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: U/f open-loop control
Not for motor type: -
Min
0.00 [Hz]
Description: Sets the starting frequency of the slip compensation.
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

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: U/f open-loop control
Not for motor type: PEM, REL
Min
0.0 [%]
Description: Sets the setpoint for slip compensation in [%] referred to r0330 (motor rated slip).
p1335 = 0.0 %: Slip compensation de-activated.
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 (p0009, 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).
p1336[0...n]

Slip compensation limit value / Slip comp lim val

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: U/f open-loop control
Not for motor type: PEM, REL
Min
0.00 [%]
Description: Sets the limit value for slip compensation in [%] referred to r0330 (motor rated slip).
r1337

CO: Actual slip compensation / Slip comp act val

VECTOR_G Can be changed: -
Data type: FloatingPoint32
P-Group: U/f open-loop control
Not for motor type: PEM, REL
Min
- [%]
Description: Displays the actual compensated slip [%] referred to r0330 (rated motor slip).
354
Calculated: CALC_MOD_ALL
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
3000.00 [Hz]
Calculated: -
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
600.0 [%]
Calculated: -
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
600.00 [%]
Calculated: -
Dyn. index: -
Units group: -
Scaling: PERCENT
Max
- [%]
List Manual (LH2), 04/2014, A5E03263479A
Access level: 3
Func. diagram: 6310
Unit selection: -
Expert list: 1
Factory setting
0.00 [Hz]
Access level: 2
Func. diagram: 6300, 6310
Unit selection: -
Expert list: 1
Factory setting
0.0 [%]
Access level: 2
Func. diagram: 6310
Unit selection: -
Expert list: 1
Factory setting
250.00 [%]
Access level: 3
Func. diagram: 6310
Unit selection: -
Expert list: 1
Factory setting
- [%]
SINAMICS G130/G150