Quote Originally Posted by chris w View Post
Hi, should I be seeing a voltage displayed on the Mach 3 screen when the spindle is running, it does display the commanded speed but no voltage.
there is a sensor mounted on the rear of the spindle looking at a disc with holes in it I followed back the wires from that sensor and they go into a terminal rail but nothing comes out, is that sensor only for spindle synchronisation like ridgid tapping??
if there is no voltage feedback could this be the reason that the spindle is creeping when I power up?
chris.
No you won't see a voltage on the screen but you will see Analog voltage on the Cslabs Plugin control if you want to see the voltage.

Regards the creeping have you set the spindle control up correctly regards Pulleys etc.? You may be getting a Voltage on the pin if not.!
Could be stray noise but I doubt it.

Thou to be honest the Spindle shouldn't be spinning because the Lenze shouldn't run until it gets a signal for the Run command no matter is Ref voltage is being applied or not. The REf voltage should just say run at this speed when you do turn on.!
Are you sure you have it wired correctly.? Does the Lenze have an enable or Run input.?