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Demand Response Mode, or DRM, is pretty nifty. It’s a feature that allows the MultiPlus-II to be part of a system where the grid can signal it to reduce the energy it’s feeding back to the grid. It’s mainly used when you’ve got specific grid codes to follow.
You set it up with a certain resistance on one of the ports, and if that gets disrupted, the MultiPlus-II knows to disconnect from the grid. It’s a bit like a secret handshake between your inverter and the grid to manage power flow.
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Demand Response Mode (DRM) in the MultiPlus-II is an operational mode that enables the system to participate in demand-response grid events.
This mode is configured when the AS4777.2 (Australia/New Zealand) grid code is selected in VEConfigure.
DRM allows the grid operator to send signals to the inverter to curtail the amount of power fed back to the grid during certain conditions.
Technically, this is achieved by setting up a resistance value between 5kOhm and 16kOhm on the AUX1 port, which acts as a trigger.
If the grid needs to reduce intake due to high production or low demand, it can signal this through the AUX1 port, causing the MultiPlus-II to disconnect from the grid if the resistance changes, thus contributing to grid stability.
This feature ensures that the inverter responds appropriately to grid demands and operates within the parameters set by grid regulations.
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