Hi Smithy50,
I have just been in my workshop and turned the lathe on the relay that comes on appears to be part of the ON/OFF rocker switch.
If you the operate the rocker switch no other relays operate but the machine beeps.
When the pains is disconnected the rocker switch unlatches and turns off.
So I think there must be a solenoid in the switch.
Unfortunately after I got mine working I moved the machine against a wall so its now very difficult to get in the back unless I have to.
I got mine working with the back opened so that I could check things out before I moved it.
Everything looks original but I suspect it has had some modifications as the beep comes from an added die cast box in the back of the machine.
The safety switch on the lid and the emergency stop button are also wired into this box.
I tried all the versions of the software but they all had slight variations but they all seemed to work.
One is not password protected but does not seem to have the design part of the programme.
I have tried to locate the schematics for the machine with no success and I suspect they disappeared when conect closed down.
If we are not to far apart we could meet up and exchange ideas PM me if you wish to do that.