Hi all,
have searched through the many many posts regarding similar issues, figured its time to actually post my issue
have a 1994 BP VMC 1000-22 with a heidenhain 2500 controller, simodrive 611's
the spindle rotary encoder is heidenhain ROD 420.0000 1024
having intermittent issues with the spindle orientation being picked up
If i unplug the rotary encoder and test it i can see the signals from all 3 channels
when plugged into the BP while its already on it will see the encoder signal, if I switch off the machine and back on it wont pick up the signal
have tried to chase potentially old wiring but seems to have a clean signal all the way to the board.
can anyone suggest a troubleshooting sequence to assist in narrowing down the issue
cheers,