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When automatic phase change is activated the "Fast Charge" option stays in the current Phase 1 instead of switich to 3 and going to max charge #13806
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One addition - maybe 2 buttons would be the best - Fast charge 1 phase - Fast charge 3 phases? |
pls provide a log, because there some timers in the background, which could prevent phase shifting https://docs.evcc.io/docs/faq#wie-kann-ich-ein-logfile-zur-fehleranalyse-erstellen
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Added the log from the add-on menu in Home Assistant. |
Does your config works with past evcc-versions? |
Usually I only use it in PV mode or PV min mode. Only recently I started using 1 phase automatic change and yesterday due to bad weather/little PV excess wanted to charge in Fast Charge mode... so unfortunately I cannot tell. This config I am using for about 1 year through all kinds versions... |
Wallbox shows F which is an error state. Fix these errors first, then retry. |
Sorry, that is misleading - my wife left today at ~9:00 but did not remove the cable on the wallbox - only on the car - which provokes this error. but as you can see in the log - the error was not happening before. |
The log doesn't show anything. We'll need the entire log, not just the resulting error message. |
how can I generate the logs in Home Assistant AddOn - here I only see one page - also within the System ->Logs.... If I read another issue correctly there is currently no way to get more logs?! |
@andig could you please reopen it? The error you mentioned is not related. If you need more info - please let me know how - I will provide them. |
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evcc-20240612-161644-debug.log @andig now with the attached debug protocol. Now the evcc was not able itself to switch - so it was loading with 1p and then wanted to switch to 3p - but got the error. can you please reopen? |
Which timestamp are you looking at? |
yes of course: |
Kurz vorher hat eine Phasenumschaltung stattgefunden:
Diese scheint nicht zu funktionieren da der Charger auf 1p bleibt. Warum auch immer. Bitte Alfen anfragen warum das scheitern kann/sollte. |
I have the same issue. 1p/3p switching works fine while using Solar charging, but doesn't switch to 3p when selecting 'Fast' Relevant entries: Using EM24 grid meter, Alfen Pro Single S charger and Victron Energy home battery |
You'll need to investigate with Alfen why the phase switching is no longer working. Seems it did in an older version? |
I'm new to EVCC since about a week or two. I do not have any experiences with older versions. I'm running 0.126.5 My guess is that when I select 'Fast' and the previous phase setting of the charger was '1p' things go wrong. When EVCC starts to run in 'Fast mode' it assumes the charger is in 3p state. It throws an error that there's a phase mismatch. EVCC never recovers from this. Even when I select 'Solar' again, it will never start 3p charging. I need to powercycle the Alfen charger to get things working again. After that switching to 1p and 3p using 'Solar mode' works like a breeze. It's only the 'Fast mode' that breaks things. Today I noticed that EVCC suddenly thought 2 phases were active for a short while, while my car was charging on 1p. I haven't deep-dived into EVCC yet as I find all the .go files a little overwhelming for now, but this made me believe that EVCC does the phase check based on consumption per phase? eg. if a phase is using >10W or some arbitrary value it defines that phase as active? If for some reason there is some current flowing on an unused phase (eg. incorrect measurements) EVCC gets confused about the phase switching in the charger? Whatever it is.. it isn't the Alfen that's at fault here. Phase switching works fine in Solar mode but goes haywire in Fast mode. The only difference between those modes is the EVCC internals. |
Switching to FAST switches to 3p. Seems that doesn‘t (always) work. Why is unclear. You can verify in the log that switch is triggered. Only Alfen would be able to tell us why box doesn‘t follow. |
@rudybroersma any proof for this claim? We switch to 3p on fast mode and have been doing so for ages. My best guess: Alfen is unreliable. In PV mode it will sooner of later like to go to 1p again and then restart. In Fast mode it stays on 3p. I can only repeat: you‘ll need to open a ticket with Alfen why switching apparently sometimes doesn‘t work. Trcae log will show you that evcc invokes the right register. |
Not really sure if it's proof, but here is what I noticed.. I made photos and screenshots. And here is a bigger image with a couple of cropped photos. Yet.. EVCC shows the car is charging at 2 phases. On the photo above you also see a yellow exclamation mark showing an error: "Alfen: ignoring inconsistent phases: 1p < 2p observed active" |
evcc detects phase usage on phase currents and phase voltages. |
Instead of screenshots, look at /api/state, it will show the currents. Probably p2 shows a current above our detection threshold and hence we treat it as active. If that's the case that is actually a very good explanation for why evcc might not switch to 3p in cases it thinks that it already is on 2p (or 3p). The question then really is- where does that p2 consumption come from when the charger really is at 1p??? |
Alright, will post when I have another occurrence |
But why use such a (complicated/unreliable) logic to derive how many phase are active with alfen? There is a modbus register for that... 41216 Charge_phases |
Which is what we're doing (Reg 1215). Seems that value is sometimes wrong, i.e. Alfen lies. To verify we'll need a modbus trace log. |
I don't really understand. I have modbus log all values also the phase change, and the interesting part is, that the change from 3 -> 1 works. But the change back doesn't (I thought, I remember that in the past that worked already). But then it says switching back - it even thinks it is 3 phases, but on Modbus I still see "1"... so not sure where it gets the values from, when it says "active phases: 3"... |
Could you extract the relevant part of the log? Include |
Describe the bug
When it was on PV Charge with automatic phase change and was charging in 1 phase the switch to fast charge is not working properly.
When switching to fast charge it only make it fast within the currently running phases (1<->3). Even though it could switched to 3 phases and fast charge. There is now way currently to switch to 3 phases and fast charge.
Configuration:
Charging on fast:
Steps to reproduce
...
Configuration details
Log details
What type of operating system are you running?
HomeAssistant Add-on
Version
0.126.2
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