| Item | Common to all models | |
|---|---|---|
| LOW Alarm | All 6 types |
OVP (overvoltage protection) / OCP (overcurrent protection) / OPP (overpower protection) / UVP (undervoltage protection) / Watchdog Alarm (communication abnormality protection) / External Alarm LOW Level (external input alarm detection) |
| HIGH Alarm | All 13 types |
Reverse Alarm (Reverse-connection detection protection) / Overheat protection / Line OVP (Grid overvoltage protection) / Line UVP (Grid undervoltage protection) / Line Frequency Error (Grid frequency abnormality protection), etc. |

