Been a wile since I posted here, But I am back and its great!
I recently landed a new free Baldor Standard E 3 ph motor to use with my grizzly mill ( on order now ).
Also just bought a 2HP single phase input 3 phase output VFD for a good price made by Bedford.
Any way, I been tinkering with it and testing it out, lots of options but one really confuses me.
Setup ( Motor = 4 pole 1740RPM 60hz 230V FLA = 5.6 amps 84% efficient )
Bedford VFD 2HP ( mostly original setup as manual, Other then sine wave carrier is at 15KHz - I don't think that effects any thing other then that annoying pitch I hear at slow speeds.
If any one is curious please take a peek, PDF format!
http://members.shaw.ca/H2O2/images/B801 Bedford user manual.pdf
Ok so I start her up and run it to the RPm range of about 1500RPM or so......Grab the shaft with glove and clamp down, I can literally stop the motor, then it doesn't want to come back up to speed, Is this motor not capable of being fed by a VFD?
I have the VFD setting on constant torque, but I am wondering what is going on exactly.......I know know much about VFD's so if some one takes a peek through the PDF and suggests some settings I am all yours!
I bought 2 VFD's to go onto my lathe and mill, basically both motors are identical, other then the FLA, one is 5.6 the other is 6, So I would really like this working.
Mind you I wont be turning the Hz down so far for the torque to be non existent, since the mill and lathe both have belt or gear adjustments - So if I want to run fast Ill put then mill or lathe down into the basement for RPM on the machine, then fine tune with the VFD........Right?
Thanks every one!
I recently landed a new free Baldor Standard E 3 ph motor to use with my grizzly mill ( on order now ).
Also just bought a 2HP single phase input 3 phase output VFD for a good price made by Bedford.
Any way, I been tinkering with it and testing it out, lots of options but one really confuses me.
Setup ( Motor = 4 pole 1740RPM 60hz 230V FLA = 5.6 amps 84% efficient )
Bedford VFD 2HP ( mostly original setup as manual, Other then sine wave carrier is at 15KHz - I don't think that effects any thing other then that annoying pitch I hear at slow speeds.
If any one is curious please take a peek, PDF format!
http://members.shaw.ca/H2O2/images/B801 Bedford user manual.pdf
Ok so I start her up and run it to the RPm range of about 1500RPM or so......Grab the shaft with glove and clamp down, I can literally stop the motor, then it doesn't want to come back up to speed, Is this motor not capable of being fed by a VFD?
I have the VFD setting on constant torque, but I am wondering what is going on exactly.......I know know much about VFD's so if some one takes a peek through the PDF and suggests some settings I am all yours!
I bought 2 VFD's to go onto my lathe and mill, basically both motors are identical, other then the FLA, one is 5.6 the other is 6, So I would really like this working.
Mind you I wont be turning the Hz down so far for the torque to be non existent, since the mill and lathe both have belt or gear adjustments - So if I want to run fast Ill put then mill or lathe down into the basement for RPM on the machine, then fine tune with the VFD........Right?
Thanks every one!