Re: Mitsubishi FREQ-ROL Z320 3phase VFD -Can i supply it singlephase?
Originally Posted by
MGHood
Hi Peter
I use a Hitachi 11kw vfd on 240 single phase and use it to power q 7.5 Hp Colombo spindle.
I used to retro fit CNC equipment using Mitsubishi controls etc, their VFD's are nice to use, the reason for the R-S input for single phase is that the feed for the LV supply for the VFD logic is taken off of the R&S inputs, this is in order for a feature that allows the control board to stay live when the main supply power is lost due to a major fault etc, this allows reading status or error codes when this condition or a E-stop conforming to NFPA79 occurs and all motive power is removed..
The wiring option where it is fed separately is shown and explained in the manual.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.