Acmer Fiber Rotary chuck 5pin connector to 4 pin

Hi all, can someone help me with Acmer PM 50 and rotary chuck. I bought some Vevor rotary with 5pin connector and driver board, but Acmer PM 50 have 4 pin conector. Do I need to just repin it somehow? Or maybe it have some driver board inside already? If anyone have original acmer rotary, may you can share some photos of it?
IMG_20260916_135254|666x500

I think the case is closed​:grinning_face: there is a driver board inside, so I can disconnect my rotary and connect ot to internal board.

Most of these motors are 2 phase motors, meaning they have two coils. The outputs of the motor driver shows the connections as A+/- and B+/-.

All the others have three phase (on the right). It’s likely that the 5 pin isn’t using one if it’s pins. Might have to take the connector apart and look.

You can use an Ohm meter to figure out which coil is which.

:grinning_cat:

Yep, looks pretty easy.