Ok on an ultimax 3 I get an alarm when starting the machine that all axis have errors xyz and s.checking the cabinet all axis have a .- and s has a 0 what i believe is ready to go. so i believe it s the 24 v line coming from the relay board. not sure so if that is true or not. anyone maybe have any explanation for this? maybe where a 24v fuse is located ? I checked powersupply and there i have 24v.the relay board does not show any lit led i don t know if that is common or not.