Hello everyone,
I need help with EDM Mitsubishi FX20-K (year 2002). I'm having a problem with one of the taper motors (V), every time I run the Z motor, the V starts running without giving it an order to run.
I changed the motor itself and then I changed the 2 boards:

1- CIRCUIT BOARD: MW621C-1 REV B - BN634A233G52.
2- CIRCUIT BOARD: TCUA-02-DWC / BY171A401G51.

And I’m still getting the same problem, every time I run the Z motor the taper motor (V) runs with it at the same time?

I disconnected the motor plug, just to get the machine working.
Please, if someone can help with that issue will be great.

You have a great day