KEB COMBIVERT F4-C Manuel D'instruction page 37

Slip compensation
Autoboost
M
2
1) good - speed remains stable at increasing torque
2) bad - speed decreases with increasing torque
3) bad - speed is increased too much at load
Slip compensation balances the speed changes caused by the load
variation. In order to activate the function, set the value at 1.00 and
optimize as directed in the examples below.
Adjustment range:
Resolution:
Factory setting:
Customer adjustment:
Autoboost causes an automatic I*R-compensation by raising the output
voltage during high load torques. The magnetizing current remains
constant. To activate the function set the value to 1.00 and optimize as
directed in the examples below. Check the motor voltage to see, whether
it returned to the normal value after no load of the drive. Otherwise reduce
CP.19.
Adjustment range:
Resolution:
Factory setting:
Customer adjustment:
Slip compensation and autoboost work on the basis of presetting
motor data. When
overdimensioning of more than one size, then both functions
should be deactivated.
1
3
n
Operation of the Unit
-2.50...2.50
0.01
0.00 (=off)
_______
-2.50...2.50
0.01
0.00 (=off)
_______
using a special motor or in case of
f/n
real
CP.18
CP.19
=
CP.19
=
CP.18
=
OK !
=
load
f
n
real
f
n
real
f
n
real
f
n
real
GB
37