[Cameronsa]

Just thought I'd say hi. I just purchased a SeriesI 3axis mill (yr=2000) for $1600 and will be in the process of changing it from a 460V configuration to 220V configuration. I intend to power it with a 5hp rotary phase converter.
I'm not real sharp on the electrical so any advise would be welcome.

Thanks,
Steve

[TOTALLYRC]

Just thought I'd say hi. I just purchased a SeriesI 3axis mill (yr=2000) for $1600 and will be in the process of changing it from a 460V configuration to 220V configuration. I intend to power it with a 5hp rotary phase converter.
I'm not real sharp on the electrical so any advise would be welcome.

Thanks,
Steve

If it is not cnc, I would yake a real hard look at a 1 to 3 phase VFD. Much nicer and a lot quiter than the phase converter.

[Cameronsa]

Thanks for the reply. It is a CNC which is why I was leaning toward a 3 phase converter. I have rewired the motor from 460v to 220v, changed the jumpers on the transformer, and and made an adjustment on MO1 to 7.4 amps. I am wondering if I need to change out the CR1 relay from 460v to 220v as well?

Thanks,
Steve

[mc-motorsports]

I'm not real sharp on the electrical so any advise would be welcome.

Thanks,
Steve

Yeah, don't lick the wires...:rainfro:

Sounds like you got a good deal on it, throw some power to it and make some $$$!

most relays have a pretty broad input range. I would just try it unless you already have a 220v relay, then I would probably swap it for the sake of doing things correctly, but honestly, wouldn't suprise me if the 440 relay kicks fine under 220 power.

[machintek]

There are 2 factors to consider. The coil voltage. Hopefully it is not 440V.
Secondly the current the relay can tolerate. If you go from 440 to 220 V then typically the current doubles. Hopefully the contacts are rated for that.

George