Current turning capabilities status

Looking at the schematic, AG215 looks like it shorts X, Y, Z. This would brake? AG214 parallels U, V, W to X, Y, Z, and as mentioned, changes speed? I wonder what XTM means?

I'd sure like to see the rest of the dashed (actually ghost lined) box labeled spindle motor to see what else is considered part of the motor.

There are not that many ways to tell a VFD what you want, +/- 5 or 10 Volts, PWM/Direction, Modbus, maybe one or two more, but LinuxCNC covers them all so far. Finding the rest of the VAC box in the schematic might help. Also, looking at all of the connectors going to the VFD -- the number and size of the pins on a connector can indicate its function. Getting the make and model number on the VFD can lead to a manual down load from the manufacturer's website. One just needs to be in Sherlock mode.

I've been working on part of the user interface for a new lathe manufacturer. This may be released sometime in the nearish future. It may be an example configuration that can move the state of the LinuxCNC lathe art forward a little.
--
Kirk
www.wallacecompany.com/machine_shop/

I think emcPT is correct, the relays select delta or wye connections for different speed ranges.

To determine whether it is a PMSM servo motor or induction motor, you can also short out one winding (probably you would have to short U to X? if the relays are disconnected, in any case use an ohmmeter to find a winding to short) and turn the spindle. It will have a lot of resistance to turning if a winding is shorted and its a servo motor, but shorting will not make any difference if its an induction motor.

Ah, so AG214 is open and AG215 closed for Y, and AG214 is closed with AG215 open for Delta?

Yep, that would be my WAG

Further thoughts..
Does the lathe have a step-down transformer somewhere?

I think that 200V 3-phase is normal in Japan. The machine was presumably working in Portugal, on 380V 3-phase, so there is probably a large 3-phase transformer in the system somewhere.
There is the perfect drive here if you have such a transformer:
www.motorcontrolwarehouse.co.uk/unidrive-sp4202/prod_1125.html
It's really very expensive.

Ok. Thank you all the replys.
It seams that currently I must know what motor it is on the first place. When I can I will try the suggestions of applying a small power supply to the motor and I will try to find all the wiring and schematic into the motor. Today I am ill and I am at home.

So the test with the small power supply would be conclusive regarding what type of motor is?

Regarding the power supply. From the machine point of view, it is running at 220VAC, as there is a transformer from 400 to 220 before of the machine.

The "Unidrive SP SP4202 18.5kW Inverter" is ... expensive. But if it would allow me to use the current hardware and also the C axis, it would be at least something to consider.