I returned to my boat after being laid up for the winter, and found that the Quattro inverter was no longer working.
Battery: 48V
AC-In-1: Unused
AC-In-2: Shore power
Things that work:
- Pass-through AC when Shore Power is on
- Battery charging
Things that don't work:
- Inverter (AC when on battery)
The Quattro was powered off for a long period of time over the winter (no power on the 48V battery, no AC-In from shore power). When I powered it back on, inverting seemed to no longer work.
I do have some control wires coming in on Aux-1 to control charging (not inverting). I removed all the Assistants from VE.Configure3, but all the parameters look correct.
At this point, I suspect hardware failure (my luck on this boat), but I wanted to make sure I haven't missed something obvious. What should I look for? What should I try?
I'm connected via VE.Bus to a CCGX then on to a Digital MultiControl.
It is interesting that the CCGX reports things on AC-In L1 (there is nothing physically connected there, but there are things on AC-In L2, this could just be a CCGX bug)
I am using Valence batteries, so I do not have a Victron BMS. However, the 48V is present so I'd just expect inverting to work. When I do have the Assistant in place*, the CCGX has a "VE.Bus BMS" subpage under the quattro showing "Allow to discharge" as "yes" (which would indicate that inverting should be allowed.
* Configured as two-signal BMS support / BMS has one contact with switches only on a high-cell condition / aux-1; open / force to float; SOC to 100.
[I suspect, but I haven't verified this, that the Quattro only charged the Lithium battery at 54V (the float voltage) instead of trying to push the higher voltage. Unfortunately, I was busy investigating other things, but the Quattro stopped charging when the Valence BMS indicated 67% SOC. I'll go back to the boat tomorrow for more investigation.]
