Huanyang VFD - RPM is not reading correctly

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey Tim,

by using the search function of this forum and having searched for Huanyang RPM you would have found:

@Aiph5u

Also the HY series have a setting called “rated motor revolution” at 50 Hz (PD144). Here you have to enter the RPM that your spindle would run in case it would be driven with a frequency of 50 Hz (even if this is outside the allowed range for the spindle). You calculate this according the same formula above:

50 Hertz × 2 × 60 seconds / 2 poles = 3,000 rpm

• So here you got to set PD144 to “3000”.

or:

@charleyntexas

If you spindle motor is rated to spin at up to 24,000 rpm then look in your VFD Manual for PD144 settings. It should be listed as “Rated Motor Revolutions” and most likely shows the default setting is 1440. If so then change the setting for PD144 to 3000. That will enable your spindle rpm to max out at 24,000 rpm. With the default setting of 1440 your spindle is only running at around12,000 rpm when maxed out.