odya / esphome-powmr-hybrid-inverter

ESPHome config for various PowMr Hybrid Inverter models.
MIT License
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Pintout and voltages from RJ45 port on POW-HVM3.2H-24V-N #30

Closed Oxmaster closed 3 months ago

Oxmaster commented 3 months ago

I've got POW-HVM3.2H-24V-N, still waiting for the batteries, so testing it with benchtop power supply. IMG_20240321_183427

I'm checking the RJ45 pinout on my bench and I'm getting different outputs than from the diagram provided.

rj45

White green (1) is GND Brown (8) is + VBat 24 V Blue (4) is + 13.2 V

or at least that's what my multimeter says. Don't want to remove the top cover because of the tamper seal to check for the RJ45 board.

Oxmaster commented 3 months ago

I'm waiting for batteries, if the inverter will end up working I will open it up to check the pinout on the PCB.

I just checked with my hobby osciloscope,

8 as GND:

1 as GND:

Oxmaster commented 3 months ago

Seem to work with standard pinout, just strange voltages when measuring.