Hi!
In my company they use lathe machine EMCO 300 with sinumerik 810. Until recently everything worked fine, but at some point the M30 code won't return the program back to the beginning and start it again (we have swith for continuous cycle turned on). It makes only one cycle, than you have to press start again. I also tried to loop it with M99 but it just stopped, same as with M30 and M02. Nothing was changed in the program so we really have no idea what could it be.
Can anybody help? Is it possible that something happened with the circuit board behind the soft keys?