A 4-pole AC motor into a 2-pole AC motor, the motor is controlled by the inverter, to make the maximum speed of the 2-pole motor and the original 4-pole
First reduce the frequency of about one-third of the test, not the case, then appropriate adjustments!
If it is normal V / F control, then do not need to modify too many parameters to limit the frequency limit of 50%
The upper limit frequency transferred to 25HZ, the number of poles changed to 2, try to run when the motor speed test
