[Labusch]

Hi

Im looking for some advice on powering my three phase cnc . I am moving to a place without 3 phase and thought that if I bought a 3 phase rotary convertor I would be good to go. Wrong. Apparantly because my cnc has inverters in it I cant use a 3 phase convertor. Ive asked quite a few people and they all tell me the same so is a diesel generator my only option.

Cheers

Steve

[cncmakers001]

Hi

Im looking for some advice on powering my three phase cnc . I am moving to a place without 3 phase and thought that if I bought a 3 phase rotary convertor I would be good to go. Wrong. Apparantly because my cnc has inverters in it I cant use a 3 phase convertor. Ive asked quite a few people and they all tell me the same so is a diesel generator my only option.

Cheers

Steve

If it is three phase cnc, why the inverter in it can't use a 3 phase convertor?
What phase the inverter is using now in your current location?

[Labusch]

If it is three phase cnc, why the inverter in it can't use a 3 phase convertor?
What phase the inverter is using now in your current location?

At the moment it is running off 3 phase main supply. Apparantly( and Ive talked to several people) the cnc wont run from a converter because of the inverters inside running the 2 spindles.

[mactec54]

At the moment it is running off 3 phase main supply. Apparantly( and Ive talked to several people) the cnc wont run from a converter because of the inverters inside running the 2 spindles.

That would be strange a RPC does not normally affect the VFD Drives unless you have a supply voltage problem like over voltage or under voltage RPC are never ideal Phase Perfect which is solid state 3 Phase control if you have something like this in the UK would be your best bet check this company out they may be able to help you

https://www.phasetechnologies.com/phase-conversion

[mactec54]

At the moment it is running off 3 phase main supply. Apparantly( and Ive talked to several people) the cnc wont run from a converter because of the inverters inside running the 2 spindles.

A rethink what size are the spindles motors Hp as you may be able to run the whole machine on single phase if you have a good supply