I Have 480V 3Ph Power, The Beast Needs 400V, 3Ph, 50Hz

[Get Off My Lawn]

I'm fishing for folks that this is their wheel house. @Scsmith42 has already been a bunch of help... as usual
It's a Swiss 5 axis CNC log milling machine made for 400V 3Ph 50Hz. I believe it has a 50A-60A draw. It looks like a VFD, or VFD & transformer is the way to go. I'm still lacking detailed information.

Krusimatic G2 Automatic Log Milling Machine

Combines CNC timber wood joinery with high-speed log milling capabilities

www.krusi.com

I know we've some EE folks here that have done this with expensive equipment.
I have pictures in two of the three power cabinet doors.
The drives I can see are these two larger sizes

Control Techniques | Unidrive | Universal AC/Servo Drives | VFD/VSD

Unidrive universal variable speed/servo drives from Control Techniques are leading the evolution of industry automation with the latest drive technology, designed specifically for industrial applications.

acim.nidec.com

Commander S | Control Techniques

Making simple applications, simple.

acim.nidec.com

 

[Scsmith42]

I think that you’re going to find that the machine may already have some VFD’s onboard that “might” have the ability to accept multiple input voltages / frequency’s, and that all you will need to do is swap some wires around. That would probably be the “Unidrives”

Same thing with the control transformer.

But I defer to some of our technician members who may have direct experience working with equipment such as this.


Edited to add that the SPD 249603 AC/DC converter shown at the top right in the first pic is already set up for multiple input voltages / frequencies, so you don’t need to do anything about the control wiring. Just need to verify that the motor controllers are multi voltage/frequency also and if they are voltage sensing or if you need to move a wire around.

 

[Get Off My Lawn]

I think that you’re going to find that the machine may already have some VFD’s onboard that “might” have the ability to accept multiple input voltages / frequency’s, and that all you will need to do is swap some wires around.

Same thing with the control transformer.

But I defer to some of our technician members who may have direct experience working with equipment such as this.

I hope so, I’ve requested the wiring schematic.

 

[Jp8819]

I am pretty sure Scott is correct. As mentioned in my other message just verify the components can handle 60hz and i think you would be ok just may have to adjust taps on transformers so that your running at optimal voltages.

Also if it is new i wouldn’t hesitate to ask the oem as they should tell you as they will want to sell the equipment and im sure you are not the only one in states they would like to sell to. If they will not help I might question support if the need arises for other help.

 

[Scsmith42]

Andy, I think that the three Unidrives on the left may be controlling the servo’s for the 5 axis, and the Unidrives on the far right with the black box attached to it may be the spindle motor speed control.

 

[Get Off My Lawn]

Andy, I think that the three Unidrives on the left may be controlling the servo’s for the 5 axis, and the Unidrives on the far right with the black box attached to it may be the spindle motor speed control.

Or the smaller ones are running the smaller milling motors, the large one may be running the ~20" saw blade.

 

[LesBaer45]

400, 480, 50, 60, whatever it takes.

 

[Get Off My Lawn]

400, 480, 50, 60, whatever it takes.

I’m tracking!