Hi Guys,
So, here is the result of what I did at Brett's request:
Hooked the meter to the analog out terminals, powered the router only up. Read 0.85-0.9 volt.
Than opened Mach, MDI-ed 24000 RPM, read 9.8 - 10.05 volts.
MDI-ed M5, the spindle stopped.
Tried it again, spindle started, pressed reset, spindle stopped.
OK I said, problem solved. Not quite, when I close Mach, spindle starts up, voltage rapidly fluctuates between 0.0 and 1.5 volt.
However, disconnecting the meter, spindle went back to it's old trick, didn't stop again, tries to stop, but keeps repeating this on-off cycle until I power off. Very strange behavior. Thru out all this both relay LEDs are lit on the C41, there should only be one on.
I hope this tell you Guys something.
Mike