on my TongIL retrofit Project, i am at the spindle now.
the spindle has a pulse code A20B-9000-0380.

on the web i found two different types.

i have the the one with the following signals:

0V -> GND
5V -> Power supply

VA
VA/   the Sinus wave

VB
VB/  the Cosinus wave

so far so clear and i can measure the signals with the scope

then we have a

VZ witch should be the Zero pulse

the is no VZ/.

i have measured VZ to GND allways 2,5V
i have measured VZ to 5v allways -2,5V

i was never able to see a pulse on the scope.

maybe one of you has got any further ideas.

Regards Thomas