This fault occurs to make a record that the local E-stop was pressed. Not all systems have E-Stops, so this fault may not apply to your system. If it is displayed in the active faults screen, the E-Stop has not been cleared. If it is only visible in the history faults screen, them the E-stop has been cleared as is visible for record keeping purposes only. When an E-Stop occurs all outputs are turned off and power is removed from all externally powered modules – except the CPU which stays powered at all times.