4.9. Enabling/Disabling High Level Detect

ATevo has a dedicated hardware circuit that can shut down the charger should a catastrophic microprocessor failure occur and the rectifier control become locked to the full ‘on’ state.

The setting for the Analog High Voltage Shutdown jumper determines whether the High Level Detect circuit is enabled or disabled.

The High Voltage Shutdown jumper (J1) is located center right on the Main Control Board (A1).
To change the enable/disable status of the High Level Detect circuit:

1. Turn OFF (open) the AC Input Breaker (CB1).
2. Turn OFF (open) the DC Output Breaker (CB2).
3. Open ATevo front panel door.
4. Locate Main Control Board (A1), installed on back of front door.
5. Locate jumper (J1) labeled ‘High Level Detect Shutdown’, at center-right of the Main Control Board (A1).
6. Move jumper shorting block as follows:
   1. ‘EN’ to enable the High Level Detect Shutdown
   2. ‘DIS’ to disable the High Level Detect Shutdown
7. Close ATevo front panel door.
8. Turn ON (close) the AC Input Breaker (CB1) first.
9. Turn ON (close) the DC Output Breaker (CB2) second.
   

See Section 5.4 for more information on the High Level Detect feature.