Hoymiles HM-1500 wird heiß - einige Ideen zur Kühlung

  • Derating triggering temperature of 85°C
  • Derating factor of 14%
  • Shutdown temperature of 90°C
  • Restart temperature of 85°C
  • Restart interval of 0 (meaning that, once it shuts down, a Hoymiles inverter will continually check to see if it has reached the required restart temperature, allowing the inverter to begin converting power as fast as possible)
The graph below shows the power reduction relative to the temperature of these models of Hoymiles microinverters. As you can see, power drops rapidly once the internal temperature of the microinverter rises past 90°C.

However, once the inverter reaches the restart temperature of 85°C once more, you can see that the power immediately rises back up to 100% — no waiting around for the power to gradually rebuild once the inverter restarts.

Quelle:
https://www.hoymiles.com/resources/blog/how-do-hoymiles-4-in-1-microinverters-perform-at-high-temperatures/
In der openDTU müsste man das direkt (Alarmcode) bzw. indirekt (power-limit [%]) im Event Log sehen.
Der entspr. Alarmcode für den HM-1500 wäre laut dem user-manual (Seite 14) "121"

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