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Reply by Lee

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Posted on 3ph 5hp Powermatic 66

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Lee

135 posts in 1327 days


#1 posted 06-15-2017 02:57 PM



Here’s a Teco 5hp single phase 230v input vfd for $358 with 17.5 amps constant torque output.
[...] http://dealerselectric.com/MA7200-2005-N1.asp
- Lee

Unfortunately, I do not believe that VFD will accept single phase input… only their 1-3hp models will. 5hp and up requires three phase input, which is specified in the manual and sales brochure.

Get the FLA of the motor. There are plenty of people running 5hp machines (PM72, Delta 12/14, etc…) on single phase input VFD s rated at “3hp”. You will find plenty of examples over at the OWWM and practicalmachinest web sites. The VFD can supply up to 150% of rated current for short periods of time (like ~1 minute), and the motor will rarely, if ever, see FLA. Otherwise, there are single phase input VFD s that can do more current, but they can get expensive.

Cheers,
Brad

- MrUnix


Look on page 15 of the TECO MA7200 manual, it says, and I quote, (For single phase power supply, please use R/L1, S/L2 as input terminal)

-- Colombia Custom Woodworking


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