degdrive DGI900, Руководство пользователя

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It can compensate the rotational speed slip of the asynchronous motor when the load of the
motor increases, stabilizing the motor speed in case of load change. If this parameter is set
to 100%, it indicates that the compensation when the motor bears rated load is the rated
motor slip. The rated motor slip is automatically obtained by the AC drive through calculation
based on the rated motor frequency and rated motor rotational speed in P8.05.
Generally, if the motor rotational speed is different from the target
speed, slightly adjust this parameter.
P5.10
V/F over-excitation gain
Setting Range
：
0~200 64
During deceleration of the AC drive, over-excitation can restrain rise of the bus voltage,
preventing the overvoltage fault. The larger the over-excitation is, the better the restraining
result is.
Increase the over-excitation gain if the AC drive is liable to overvoltage error during
deceleration. However, too large over-excitation gain may lead to an increase in the output
current. Set P5.09 to a proper value in actual applications.
Set the over-excitation gain to 0 in the applications where the
inertia is small and the bus voltage will not rise during motor
deceleration or where there is a braking resistor.
P5.11
V/F oscillation suppression gain
Setting Range
：
0~100 Model
dependent
Set this parameter to a value as small as possible in the prerequisite of efficient oscillation
suppression to avoid influence on V/F control. Set this parameter to 0 if the motor has no
oscillation. Increase the value properly only when the motor has obvious oscillation. The
larger the value is, the better the oscillation suppression result will be.