Peroni
Cast Iron
- Joined
- May 18, 2007
- Location
- Yadkinville, NC
I've got a lathe that right now is forward rotation only. I'd like to add reversing capabilities and instead of adding a reversing contactor I thought about a VFD instead. It would let me do a couple other things that would be helpful but I'm not sure which VFD to get.
Motor is a 7.5hp Westinghouse Life-Line CSP 3 phase and 23 FLA. I already have 3 phase input from a 15hp rotary converter. Believe I need 3 wire control function as there will be 3 momentary push buttons for forward, stop, reverse. I'd like to add a speed pot(but don't know what resistance value to get) and be able to program the VFD for 50% over and under the motor's nominal speed. There is a low voltage indicator light that needs to be lit when the motor is running. And it would be nice to be able to tap into a low voltage DC source to power a tachometer.
I don't need anything like dynamic braking or instant start/reverse or spindle jog capabilities. Just simple motor direction and speed control. The selection of VFD's is overwhelming and I'm not sure which one will do what I want. Reliability is more a concern over price.
Suggestions?
Motor is a 7.5hp Westinghouse Life-Line CSP 3 phase and 23 FLA. I already have 3 phase input from a 15hp rotary converter. Believe I need 3 wire control function as there will be 3 momentary push buttons for forward, stop, reverse. I'd like to add a speed pot(but don't know what resistance value to get) and be able to program the VFD for 50% over and under the motor's nominal speed. There is a low voltage indicator light that needs to be lit when the motor is running. And it would be nice to be able to tap into a low voltage DC source to power a tachometer.
I don't need anything like dynamic braking or instant start/reverse or spindle jog capabilities. Just simple motor direction and speed control. The selection of VFD's is overwhelming and I'm not sure which one will do what I want. Reliability is more a concern over price.
Suggestions?