Page 1 of 1

H3/AC3 and DRM0

Posted: Sat Apr 15, 2023 10:25 pm
by kozobera
Hi all,

can you clarify to me what the DRM0 function (described in the user manual https://www.fox-ess.com/wp-content/uplo ... Manual.pdf) does exactly? For what is it used?

Thank you.

David

Re: H3/AC3 and DRM0

Posted: Sat Sep 02, 2023 2:29 pm
by ljalves
I was wondering the same thing (different inverter, S series G2) and googling around I think it's more or less this:
(please anyone correct any mistake)

Some countries (like Australia) somehow control this modes by powerline comms and they call it DRM.
DRM = Demand Response Mode
DRM0 = DRM mode 0 (there are more modes).

Quoting some doc talking about inverters:
"[...] One of these requirements is demand response mode for zero export (DRM 0), which reduces export to grid to zero upon
command from the utility".


Putting it all together, I believe that if you enable DRM0 in the settings (and you have a CT clamp/meter connected) then when this input pin is shorted to GND the inverter will not export any power.

Re: H3/AC3 and DRM0

Posted: Sat Sep 02, 2023 5:07 pm
by ljalves
Also found:
Image