Pioneer PE6000 Series User Manual page 96

Description of Function Codes
It is applicable to induction heating, inverse power supply and torque motor control.
11: V/F half separation
•
In this mode, V and F are proportional and the proportional relationship can be set in P3-13.
The relationship between V and F are also related to the rated motor voltage and rated motor
frequency in Group P1.
Assume that the voltage source input is X (0 to 100%), the relationship between V and F is:
V/F = 2*X*(Rated motor voltage)/(Rated motor frequency)
Function
Code
P3-01
Cut-off frequency of torque
P3-02
To compensate the low frequency torque characteristics of V/F control, you can boost the
output voltage of the AC drive at low frequency by modifying P3-01.
If the torque boost is set to too large, the motor may overheat, and the AC drive may suffer
overcurrent.
If the load is large and the motor startup torque is insufficient, increase the value of P3-01. If
the load is small, decrease the value of P3-01. If it is set to 0.0, the AC drive performs automatic
torque boost. In this case, the AC drive automatically calculates the torque boost value based on
motor parameters including the stator resistance.
P3-02 specifies the frequency under which torque boost is valid. Torque boost becomes invalid
when this frequency is exceeded, as shown in the following figure.
Figure 5-4 Manual torque boost
Parameter Name
Torque boost
boost
Setting Range
0.0%–30%
0.00 Hz to maximum output
frequency
96
PE6000 User Manual
Default
Model
dependent
50.00 Hz