Multi RS 6000 and german §9/§14a test results - please improve UI for feed-in and charge limits

Q&A and troubleshooting
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1

Hello everyone,

after the release of v1.28 for the Multi RS 6000 I did some testing and here are my findings disabling charging and grid feedin.

Used versions and configurations:

  • Multi RS 6000 firmware v1.28 in 3 Phase configuration
  • Victron Connect v6.30 Beta 8 (MacOS)
  • Cerbo GX MK1 firmware v3.70~83
  • Node-Red palette v1.6.59
  • There is no external control system (ImSys) installed yet
  • Testing was only done by switching the VC Aux settings to on/off

Testing to disable feedin (§9)
Setting “Use Aux1 as disable FeedIn signal” to “Aux input active” correctly triggers the message “Feed-in not active” in Victron Connect. I was not able to test it fully because there was not enough solar production that day.

Findings:

  • There is no clear indication on Cerbo that the Feed-in is disabled
  • There is no clear indication on VRM that the Feed-in is disabled
  • Node-Red “RS6K-L1 > Disable Feed-in” stayed at 0 (Feed-in enabled)
  • Node-Red “RS System > Disable Feed-in (into grid)” stayed at 0 (Feed-in enabled)

Testing to disable charge (§14a)
This was simulated by setting the minimum SOC to 100% with 50% charged battery. The battery charge went up to around 15 kW and was correctly limited when “Use Aux2 as limit charger signal” was set in Victron Connect.

Findings:

  • There is no clear indication on Cerbo that the charge was limited
  • There is no clear indication on VRM that the charge was limited
  • Node-Red “RS6K-L1 > Disable charge” stayed at 0 (Charge enabled)
  • There is no “RS System > Limit Charge (from grid)” option in Node-Red

Recommendations:

  • There should to be a clear visible indicator on Cerbo and VRM for both scenarios
  • The nodes in Node-Red need to be functional and report the correct status
  • There should be an option to send alarms when either “Limit charger” or “Feed-in disabled” is triggered

Thanks and kind regards

Stefan

2

@guystewart Would you be so kind and forward my findings to engineering? Thanks a bunch. :slight_smile:

3

Hi @aaxc

I passed on your post to R&D as a feature request.

4

Hi Guy,

I now got a RSE (Rundsteuerempfänger) installed by the grid operator just to
disable charge (§14a). We tested everything but there is no way to see that
the „Charge was limited“.

Without any logging, alarm or working NodeRed integration triggered I am
not able to see if this option was ever triggered by the operator.

Are there any news about the feature request?