Inverter Limit goes above 100%

[Neffez]

Hi, I'm able to set my Inverter, which should be able to do 2000W, to 2250W. Is this normal or a bug? Is it some kind of overclocking or does it actually not work and I will get 2000W max. anyways? I did not find any info about this anywhere else. Thanks!

[stefan123t]

@Neffez please provide the inverter details information with Hardware part number, etc and grid profile hex dump as this may be related to your inverter firmware veraion.

[Neffez]

Production Year	2024
Production Week	0
Model	HMS-2000-4T
Detected max. Power	2,000 W
Bootloader Version	0.1.1
Firmware Version	1.0.27
Firmware Build Date	2023-06-05 10:24:00
Hardware Part Number	270692628
Hardware Version	01.10

0a 00 20 01 00 0c 08 fc 07 a3 00 0f 09 e2 00 1e 06 4a 00 14 0a 55 00 14 0a c8 00 0a 09 e2 10 03 13 88 12 c0 00 14 13 ec 00 14 12 8e 00 32 14 50 00 32 20 00 00 01 30 03 02 58 09 e2 07 a3 13 9c 13 56 40 00 07 d0 00 10 50 01 00 01 13 9c 01 90 00 10 00 00 60 00 00 01 09 e2 0a 5a 02 15 80 01 00 00 08 5b 01 2c 08 b7 09 41 09 9d 01 2c 00 64 90 00 00 00 00 5f b0 00 00 00 01 f4 00 5f 70 02 00 01 27 10 a0 02 00 00 00 00 d8 8b

Is that what you need?

[stefan123t]

@Neffez I can not see a problem here:

SystemConfigPara

15 A0 0C B5 80 80 16 48 24 80 05 00 67 33 1D 01 00 00 00 00 00 00 00 00 F4 B6 F9 
95 A0 0C B5 80 80 16 48 24 81 00 01 03 E8 00 00 03 E8 00 00 00 00 00 00 3C F8 B2
^^ ^^^^^^^^^^^ ^^^^^^^^^^^ ^^ ^^^^^ ^^^^^ ^^^^^ ^^^^^ ^^^^^ ^^^^^ ^^^^^ ^^^^^ ^^ 
ID Source Addr Target Addr Idx  ?   Limit   ?     ?     ?     ?     ?   CRC16 CRC8 

0x03E8 = 0d1000 so this should yield 100.0 % in the UI too.

Are you sure you have waited long enough for the UI to show the update from the SystemConfigPara Response after changing the ActivePowerLimit ?

[Neffez]

Yes it showed 100% in the UI as well. So did you actually want me to set it to 112,5%? I can set it to 112,5% tomorrow and post the results.

[Neffez]

11:03:04.599 > TX SystemConfigPara 865.00 MHz --> 15 A0 0C B5 80 80 16 48 24 80 05 00 67 35 CA D7 00 00 00 00 00 00 00 00 6A AB 7D 
11:03:04.653 > Interrupt received
11:03:04.700 > RX 865.00 MHz --> 95 A0 0C B5 80 80 16 48 24 81 00 01 04 65 00 00 03 E8 00 00 00 00 00 00 99 9F FA | -77 dBm
11:03:04.803 > RX Period End
11:03:04.803 > Success

Here you go, it shows 04 65 which is 112.5%.

[stefan123t]

You are right 0x04 65 = 0d1125 or 112,5%.
Okay, so OpenDTU is just telling you what it receives from the Inverter.

Is this Inverter somehow modified e.g. by something like the latest Hoymiles Firmware Update or the Flole-Mod ?
I am out of answers or at least I do not have further questions from my side 🙂

[Neffez]

It's a new inverter I've bought from an ordinary online shop, so I don't think it's modified. I'm just curious what it means that it can go above 100%. It seems like there is nobody else with an inverter like this, which is interesting. Thanks anyways.