9
ANTRIEBSTECHNIK
4
3
9
KEB COMBIVERT F4-C
Name: Basis
20.03.98
4
CP - Parameter
©
KEB Antriebstechnik, 1997
All Rights reserved
Operation
Chapter
Section
Page
Date
Slip compensation
Autoboost
Slip compensation compensates the speed changes caused by load changes. To
activate the function, adjust a value of approx. 1.00 and optimize it according to the
examples below.
Setting range:
-2,50...2,50
Resolution:
0,01
Factory setting:
0,00 ( off)
Customer setting:
_______
In case of high load torques Autoboost causes an automatic I*R-compensation by
raising the output voltage. The magnetizing current remains nearly constant. To activate
the function, adjust a value of approx. 1.00 and optimize it according to the example.
Check, whether the motor voltage is taken back when the load on the drive is reduced.
If not, reduce the value of CP.19.
Setting range:
-2,50...2,50
Resolution:
0,01
Factory setting:
0,00 ( off)
Customer setting:
_______
f/n
ist
=
=
=
=
1) good - speed remains stable at rising torque
2) bad - speed decreases with rising torque
3) bad - speed is raised too much under load
M
n
1
2
3
n
ist
f
n
ist
f
n
ist
f
n
ist
f
CP.18
↑
CP.19
↑
CP.19
↑
OK !
CP.18
↑
Load
Slip compensation and Autoboost work on the basis of preadjusted motor
data. When employing a special motor or in case of overdimensioning by
more than one size both functions should be deactivated.