Commissioning
Optimising the operating behaviour
Slip compensation
6
6.11
6.11.1
6.11-1
EDSVF9333V EN 3.0-06/2005
6.11 Optimising the operating behaviour
6.11.1 Slip compensation
The speed of an asynchronous machine decreases when being loaded. This
load-dependent speed drop is called slip. By setting C0021 the slip can be
partly compensated.
In the V/f characteristic control mode the slip compensation is only active at
operation without feedback (C0025 = 1).
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0021 Slipcomp Æ -20.00 {0.01 %} 20.00 Slip compensation
Æ Change of C0086, C0087 or
C0089 sets C0021 to the
calculated rated slip of the
motor
z When changing over to the
vector control mode, C0021 is
set to 0
6.11-1
8.2-25
8.2-48
C0078 Tn slip CTRL 100 1 {1 ms} 6000 Integral-action time of slip
controller
z Filter time for slip
compensation (C0021)
z Only active with V/f
characteristic control
8.2-25
Description