KEB COMBIVERT F5-A, Applications Manual, Page: 173 / 552

Motor data and controller adjustments of the asynchronous motor
© KEB, 2012-10 COMBIVERT F5-A, -E, -H Page 7.5 - 11
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During generatoric operation, the linear dependency is preserved. The steepness of the characteristic can be
adjusted with cS.03.
7.5.1.7.6 Adjustment of the torque compensation (uF.16, uF.17)
With uF.16 and uF.17 the torque compensation is activated and
configured.
Magnetising current setpoint and actual value are calculated in the motor model.
ATTENTION! Through overcompensation increased motor currents can occur particularly with small frequen-
cies.
uF.16: Torque compensation/ configuration
Value Meaning
0 Torque compensation off
1 Torque compensation acts motoric and generatoric
2
Torque compensation works only in the motoric operation; resulting in a smoother run in the gene-
ratoric operation.
3
Torque compensation in motoric operation; overcompensation in the generatoric operation; resulting
in a higher maximum torque and increased current in the generatoric operation compared to 1 and
2; because of the higher motor-own losses a braking resistor is only necessary at higher energy
recovery compared to 0, 1 and 2.
uF.17 Torque compensation/ amplification
0.00…2,50 (default 1.20)
With the energy saving function (uF.06...uF.08, s. chapter 7.5.1.7.5), the magnetizing current setpoint can be
adjusted to the application. If a drive operates in the partial load range for a long period, decreasing the energy
saving factor can reduce motor warming and energy consumption.
7.5.2 Speed-controlled operation
7.5.2.1 Initial settings
Vector controlled operation is activated by inputting the values 4, 5 or 6 into the category "control mode" of the
parameter "controller configuration" (cS.00).
cS.00: Controller configuration
Bit Meaning Value Explanation
0...2 Control mode
0: off
1...3 reserved for V/f-open loop operation
4: Speed control
speed- and current-controlled operation with or
without speed feedback
5: Torque control torque-controlled operation / see chapter 7.9
6: Torque value (F5-M/S)
7: off
Torque-controlled operation (cS.00 = 5 or 6) is a special form described in chapter 7.9.
The following adjustments are required in speed-controlled operation for all modes (with / without encoder re-
spectively with / without motor model):