Group P3: V/F Control Parameters - Pioneer PE6000 Series User Manual

PE6000 User Manual
These are current loop PI parameters for vector control. These parameters are automatically
obtained through "Asynchronous motor complete auto-tuning" or "Synchronous motor no- load
auto-tuning", and need not be modified.
The dimension of the current loop integral regulator is integral gain rather than integral time.
Note that too large current loop PI gain may lead to oscillation of the entire control loop. Therefore,
when current oscillation or torque fluctuation is great, manually decrease the proportional gain or
integral gain here.

Group P3: V/F Control Parameters

Group P3 is valid only for V/F control.
The V/F control mode is applicable to low load applications (fan or pump) or applications where
one AC drive operates multiple motors or there is a large difference between the AC drive power
and the motor power.
Function
Parameter Name
Code
P3-00 V/F curve setting
0: Linear V/F
•
It is applicable to common constant torque load.
1: Multi-point V/F
•
It is applicable to special load such as dehydrator and centrifuge. Any such V/F curve can be
obtained by setting parameters of P3-03 to P3-08.
2: Square V/F
•
It is applicable to centrifugal loads such as fan and pump.
3 to 8: V/F curve between linear V/F and square V/F
•
10: V/F complete separation
•
In this mode, the output frequency and output voltage of the AC drive are independent. The
output frequency is determined by the frequency source, and the output voltage is determined by
"Voltage source for V/F separation" (P3-13).
Setting Range
0: Linear V/F
1: Multi-point V/F
2: Square V/F
3: 1.2-power V/F
4: 1.4-power V/F
6: 1.6-power V/F
8: 1.8-power V/F
9: Reserved
10: V/F complete separation 11: V/F half
separation
95
Description of Function Codes
Default
0