Hello Jimpinder
The spindle will increase speed while the axis is moving, once the axis has stopped the spindle will then go back to its set speed setting.
The digispeed is wired from BOB NO2 I have two BOB's on the machine. I don't have problems with Bob 2 as it running other functions and also an axis that are running fine.
The way I have configured the DCO6 is as follows
In the Ports and pins.
Spindle Step pin 16 active low, Dir pin 1 active low both Port 2.
In the outputs Output 1 Pin 17 active low port 2
This was advised for me straight from Peter Homann the maker of the Digispeed.
While the machine is at rest You can give it the command say "S7350 M3" and the spindle will turn CW at 7350rpm which is have its Max Speed the digispeed will have an output value of 5v, Give it the command "M4" and the spindle will stop and turn CCW at 7350 rpm Increase speed via Mach and it will increase all the way to 14700rpm digispeed will have an output value of 10v. No problem there.
Lets say spindle speed set at 7000rpm jog the machine forward either X, Y, or Z and the spindle increases speed. Jog the machine Backward and the spindle stays at a constant, (or I cant notice a difference if there is One)
I have taken the the power supply for the digispeed of a 5v terminal on BOB2, I have tried taking the power from BOB1 still no difference.
The BOB's are CNC4PC c10