Peter from Holland
Diamond
- Joined
- Jan 15, 2005
- Location
- The Netherlands
I have a Hermle WF3SA milling machine with the DC pancake motor destroyed beyond repair
Now I have a VFD (Lenze ESMD222X2TXA) and want to use that with a 1400RPM 50Hz 2.2Kw motor I have
Problem is the huge ratio between lowest and highest speed
The motor should run between 30 and 3000rpm resulting in about 2Hz to 210Hz
We hooked up the VFD but we could not get it under about 4 Hz We were thinking perhaps with a 10turn potmeter we could get better results
But anyway at the lowest speed the motor started to stutter Turned very irregulary
My question :
Is 1 Hz possible and what would it need
I also looked into a stepper motor but the 3000rpm seems to be a problem with these
Also a 2.2 Kw will not be cheap I suppose
Peter
Now I have a VFD (Lenze ESMD222X2TXA) and want to use that with a 1400RPM 50Hz 2.2Kw motor I have
Problem is the huge ratio between lowest and highest speed
The motor should run between 30 and 3000rpm resulting in about 2Hz to 210Hz
We hooked up the VFD but we could not get it under about 4 Hz We were thinking perhaps with a 10turn potmeter we could get better results
But anyway at the lowest speed the motor started to stutter Turned very irregulary
My question :
Is 1 Hz possible and what would it need
I also looked into a stepper motor but the 3000rpm seems to be a problem with these
Also a 2.2 Kw will not be cheap I suppose
Peter