Dynamic Power Limiter

Zero feed throttle (Nulleinspeisung)

• without Battery
• with Battery

(Full) Solar Passthrough

See separate Wiki page.

Settings

• The inverter ID configures the inverter that is controlled by the power limiter. The power limiter can only control a single inverter at this point in time.
• Channel ID is the inverter input channel ID that is used for battery voltage readings.
• Target power consumption specifies the power to be either consumed from the grid (when set to a positive value) or fed back into the grid (when set to a negative value).
• The hysteresis value helps optimize communication with the inverter by skipping unnecessary power limit updates. An update is only sent if the absolute difference between the newly computed power limit and the previously set limit matches or exceeds the hysteresis value. This approach can conserve both airtime and CPU resources.
• Power limits control the min / max limits of the inverter. IMPORTANT regarding Minimum Limit: Das untere Leistungslimit von zum Beispiel 300W bedeutet, dass der Wechselrichter erst ab einer angefragten Leistung von 300W gestartet wird.
• Inverter is behind power meter: Select this if your inverter power is measured by the power meter. This is typically the case.
• Battery start and stop threshold can be configured using voltage and / or state of charge values. Stage of charge values are reported by a compatible battery interface, (Pylontech battery, JK BMS, Victron SmartShunt).

HomeAssistant Toggle Switch

You can activate/deactivate the Dynamic Power Limiter by writing a value ("0", "1" or "2") from your Home Automation System using MQTT. Read the complete information and details at MQTT power-limiter-topics

In Short:

The topic is "powerlimiter/cmd/mode". If the value is "1", the DPL will be disabled (and the inverter will be shut down), as if you disabled the DPL from the OpenDTU-OnBattery WebUI. If the value is "0", the DPL will operate as setup using the OpenDTU-OnBattery WebUI.

Make the toggle switch write "0" if enabled, and make it write "1" if disabled.

TODO (what do these screenshots show?)

And if (since) you are going to ask, "can Dynamic Power Limiter control more than one inverter?", have a look here:

https://github.com/helgeerbe/OpenDTU-OnBattery/wiki/FAQ#can-opendtu-onbattery-dynamic-power-limiter-control-more-than-one-inverter