KEB COMBIVERT F4-F Instruction Manual page 32

4. Parameter Description
Speed Regulation on/off
GB
Boost
GB 32
In CP.32 you can select whether the inverter operates open-loop or
closed loop.
Adjustment Range:
Resolution:
Factory setting:
0 = open-loop
1 = closed-loop
During open-loop operation the torque limits, levels and displays do
not have a function. All parameters, that access these values, either
do not have a function or have a restricted function. This is described
in the individual parameters.
Caution !
release is open !
not observed.
The voltage increase for the lower speed range is adjusted with the
boost, which results in a higher torque in the lower range. During
closed-loop operation this parameter does not have a function!
Adjustment Range:
Resolution:
Factory setting:
U [%]
A
100
CP.33
When the motor is driven during continuous
operation at a slow speed and the voltage is too
high, the motor may overheat!
0...1
1
0
(U/f-curve)
(field-oriented control)
Only switch over when control
Torque jumps may occur if
0...25 %
0,1 %
2 %
f [Hz]
CP.28