question

bkcorwin avatar image
bkcorwin asked

skylla-i smells burning and getting dropouts on MG system

I have configured my skylla-i as a power supply as per the application not from MG energy. The charger is connected to the canbus of my battery system. Of note, is when powered on, there is a distinct smell of burning. Is this normal? It also never reaches 100 amps.


Secondly, I am seeing periodic random droupouts of the canbus system. EG the skylla is running fine, then it fauilts and immediately reconnects to the BMS.

https://www.youtube.com/shorts/5tbKc8s4Sfc


I have tried changing to a factory made cable on all segments of the can bus with no change.


The burning smell is of concern and leads me to believe there is some internal issue with the device.


Skylla
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2 Answers
Justin Cook avatar image
Justin Cook answered ·

Have you talked to MG about your setup? I don't see any MG-approved configuration which permits the charger's VE.Can output to be directly connected to the BMS's Canbus. In fact on MG's configuration guide it specifically states that all components must be connected to a GX device.

https://docs.mgenergysystems.eu/en/installation-guides/mg-victron-energy

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bkcorwin avatar image
bkcorwin answered ·

I should have been more clear. Yes the device is hooked to a cerbo GX. I it setup so that the ve.can goes from cerbo to smartlink to bms1 to bms2 to skylla. WIth a terminator on both end. The skylla is setup as per their application note on how to setup a skylla with MG (https://downloads.mgenergysystems.eu/application-notes/documents/an1027-en).


The burning smell is a concern regardless of can issues.

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Related Resources

Skylla-IP65 product page (12v, 24v)

Skylla-i product page (24v)

Skylla-TG Charger product page (24v, 48v)

Skylla-TG GMDSS product page (24v)


Additional resources still need to be added for this topic