Problem Setting W/.../vebus/276/Dc/0/MaxChargeCurrent in MultiPlus since update CerboGX to FW 3.30

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vicfan asked May 5, '24

Problem Setting W/.../vebus/276/Dc/0/MaxChargeCurrent in MultiPlus since update CerboGX to FW 3.30

For a long time I have been setting the value .../vebus/276/Dc/0/MaxChargeCurrent via MQTT in my zero-feed system (3 x MPII + SmartLoader) in order to
optimize the charging of the battery and fully utilize the power of the SmartLoader.
This worked without any problems for a very long time. Since updating the CerboGX to FW 3.30, I have noticed the problem that the setting of
W/.../vebus/276/Dc/0/MaxChargeCurrent still works, but after a short time the set value is overwritten with 105 (3 x 35A)
is overwritten.
On the SSH console with dbus-spy -> com.victronenergy.vebus.ttyS4 -> Dc/0/MaxChargeCurrent the behavior is identical. A manually set value
is automatically overwritten with 105 after a short time.
I assume an error in the FW. Can anyone confirm this behavior and perhaps already have a solution?

Should Victron correct this issue?!

Best regards

Multiplus-II charger MQTT charge current limit

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Matthias Lange - DE ♦ commented · May 05 at 10:23 AM

@Vicfan moved to Modifications

https://community.victronenergy.com/spaces/31/index.html

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Answer 1 · 2024-05-18T20:18:31Z

martin-caddick answered · May 18 at 08:18 PM

Hi @Vicfan, I've only just started trying to set the AC incoming current with MQTT but the symptom sounds similar.

Disconnected the Phoenix Multi Control remote and using MQTT explorer I can set the value to less than 16A but 47 seconds later it resets back to 16A.

Screenshot_18-5-2024_22546_vrm.victronenergy.com.jpeg

screenshot-18-5-2024-22546-vrmvictronenergycom.jpeg (283.0 KiB)

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Answer 2 · 2024-05-19T11:42:36Z

vicfan answered · May 19 at 11:42 AM

Hi Martin, yes it looks like a similar behavior.
My expectation is that Victron will make these setting options available again, as they were in the versions before FW 3.20.

I hope Victron is reading this!

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Answer 3 · 2024-05-20T15:16:50Z

martin-caddick answered · May 20 at 03:16 PM

Downgraded to 3.01 small image (no nodered or signalk). Now I can not even set it for the 47 seconds. To be clear, I have a @Multiplus (1922) ver 159 firmware.

Now reverting back to 3.31 large instal

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Answer 4 · 2024-05-21T09:07:16Z

aaxc answered · May 21 at 09:07 AM

I have the same issue in my installation. And completly disabling the charger in ve.config is not really that flexible. Sometimes you need the MP2 to get the batteries full, sometimes you don't because you have enough power coming in through the mppts.

If that worked before in older versions maybe Victron can bring it back?

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aaxc commented · May 21 at 04:24 PM

@mvader (Victron Energy) Can someone please have a look at this bug or change to the old behaviour?

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aaxc commented · May 30 at 03:29 PM

@Guy Stewart (Victron Community Manager) Could someone from Victron have a look at this please?

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Answer 5 · 2024-06-02T05:50:19Z

mvader (Victron Energy) answered · Jun 02 at 05:50 AM

Hey all, we’ll check; thanks for the report!

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martin-caddick commented · Jun 16 at 02:02 PM

@mvader (Victron Energy) I'm in France on the boat for the next couple of months with plenty of time to try different firmwares if you need. Cheers

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