I've got the said machine and I'm looking to see which keep relay controls the alarm for an "EX514", which is the "Select T-No. in spindle"? It basically means that "The tool your trying to call is already in the spindle dummy". I'm pretty sure there is a relay you can turn off to disable the alarm and the machine will go on its merry way. Either that if someone cold tell me which parameter shows the current tool in the spindle, I could try to write a macro to skip the M6 if tool is already there. Thanks for any help guys.