ATevo has a High Voltage Shutdown feature similar to the High Voltage Shutdown feature in legacy AT30 chargers. With this software feature the Main Control Board (A1) monitors the dc voltage and will turn OFF the output drivers (rectifier controllers) if the dc output voltage is too high.
Output voltage must exceed and stay above the High DC Voltage Alarm set point for 30 seconds in order for High Voltage Shutdown to occur. If it does, the High Voltage Shutdown Alarm and the Common Alarm Relay are activated. ATevo must be restarted with both AC and DC circuit breakers to clear the shutdown and turn ON the rectifier controls.
The High Voltage Shutdown feature can be enabled or disabled as described in Section 4.3.2.