The Emergency Stop System (ESS) is an electronic circuit consisting of the Emergency Stop (E-Stop) pushbutton switches, located next to the Human-Machine Interface (HMI) touch screen and throughout the machine. If the E-Stop is pressed, the equipment immediately stops, drops control power, and the white control power indicator, by the HMI panel, turns off. The touch screen will display an alarm message indicating which safety device is active and an alarm horn will sound.