6. System Faults¶
| Fault | Condition | Result | Reset |
|---|---|---|---|
| ↑ | LMU Comm Break|↓ |
Slave to slave connection break. | [ GUI ] : GUI will show LMU Comm Break fault. [ System ] : All contactors open. |
[ Auto Reset ] : When connection is rectified, error will be reset after hard reset. [ Manual Reset ] : Rectify the connection and do hard reset. |
| ↑ | IMD Fault|↓ |
Insulation break between battery positive, battery negative and chassis. | [ GUI ] : GUI will show IMD Fault fault. [ System ] : All contactors open. |
[ Auto Reset ] : NA. [ Manual Reset ] : Battery needs to be sent to service center. |
| ↑ | LMU Temp Open|↓ |
One or more of the slave thermistors might be open. | [ GUI ] : GUI will show LMU Temp Open fault. [ System ] : All contactors open. |
[ Auto Reset ] : When the open thermistors are rectified error will be reset after a hard reset. [ Manual Reset ] : Open thermistors are rectified and a hard reset is done. |
| ↑ | LMU Temp Short|↓ |
One or more slave thermistors are short. | [ GUI ] : GUI will show LMU Temp Short fault. [ System ] : All contactors open. |
[ Auto Reset ] : When the short thermistors are rectified, error will be reset after a hard reset. [ Manual Reset ] : Short thermistors are rectified and a hard reset is done. |
| ↑ | LMU Cell Open|↓ |
Cell voltage sensing line is open. | [ GUI ] : GUI will show LMU Cell Open fault. [ System ] : All contactors open. |
[ Auto Reset ] : NA. [ Manual Reset ] : Battery needs to be sent to service center. |
| ↑ | Fuse Open|↓ |
When contactor close command is given by BMS and pack voltage sense is still below xV. | [ GUI ] : GUI will show Fuse Open fault. [ System ] : All contactors open. |
[ Auto Reset ] : Fault will reset when the given condition is untrue. [ Manual Reset ] : Check pack voltage sense connection or any fuse open in the connection. |
| ↑ | Precharge Weld|↓ |
Precharge contactor is welded. | [ GUI ] : GUI will show Precharge Weld fault. [ System ] : All contactors open. |
[ Auto Reset ] : NA. [ Manual Reset ] : BMS needs to be sent to service center. |
| ↑ | Stack Contactor Weld|↓ |
Stack contactor is welded. | [ GUI ] : GUI will show Stack Contactor Weld fault. [ System ] : All contactors open. |
[ Auto Reset ] : NA. [ Manual Reset ] : BMS needs to be sent to service center. |
| ↑ | Module to Module Contactor Weld|↓ |
Module to Module contactor is welded. | [ GUI ] : GUI will show Module to Module Contactor Weld fault. [ System ] : All contactors open. |
[ Auto Reset ] : NA. [ Manual Reset ] : BMS needs to be sent to service center. |
| ↑ | Negative Contactor Weld|↓ |
Negative contactor is welded. | [ GUI ] : GUI will show Negative Contactor Weld fault. [ System ] : All contactors open. |
[ Auto Reset ] : NA. [ Manual Reset ] : BMS needs to be sent to service center. |
| ↑ | Stack Fuse Open|↓ |
When stack contactor close command is given by BMS and load voltage sense is still below xV. | [ GUI ] : GUI will show Stack Fuse Open fault. [ System ] : All contactors open. |
[ Auto Reset ] : Fault will reset when the given condition is untrue. [ Manual Reset ] : Check load voltage sense connection or any fuse open in the connection. |
| ↑ | Module to Module Fuse Open|↓ |
When stack contactor close command is given by BMS and battery voltage sense is still below xV. | [ GUI ] : GUI will show Module to Module Fuse Open fault. [ System ] : All contactors open. |
[ Auto Reset ] : Fault will reset when the given condition is untrue. [ Manual Reset ] : Check battery voltage sense connection or any fuse open in the connection. |