Pioneer PE6000 Series User Manual page 98

Description of Function Codes
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 group P1.
Generally, if the motor rotational speed is different from the target speed, slightly adjust this
parameter.
Function
Code
P3-10
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 P3-09 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.
Function
Code
P3-11
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.
When the oscillation suppression function is enabled, the rated motor current and no- load
current must be correct. Otherwise, the V/F oscillation suppression effect will not be satisfactory.
Parameter Name
V/F over-excitation gain
Parameter Name
V/F oscillation suppression gain
Setting Range
Setting Range
0–100
98
PE6000 User Manual
Default
0–200
Default
Model
dependent
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