Slip Compensation - Siemens MICROMASTER 440 Operating Instructions Manual

3 Functions
3.22.1.3

Slip compensation

Parameter range:
Warnings
Faults
Function chart number:
In the V/f characteristic operating mode the motor frequency is always lower than
the drive inverter output frequency by the slip frequency f
increased from M
slip s when motoring increases and the motor frequency decreases (from f
This behavior, typical for an induction motor, can be compensated using slip
compensation P1335. This therefore eliminates the speed reduction, caused by the
load, by boosting (increasing) the drive inverter output frequency (refer to Fig.
3-75).
Fig. 3-75
170
P1335
-
-
FP6100
to M ) is increased with a constant output frequency, then the
1 2
Without Slip compensation
M
M
2
M
1
∆f
f f
2 1
Slip compensation
. If the load (the load is
s
With Slip compensation
M
M
2
M
1
f
∆f
f
2
MICROMASTER 440
Issue 10/03
to f ).
1 2
f
f
f
1 out M2
f
out M1
Operating Instructions
6SE6400-5AW00-0BP0