I have been up until late last night troubleshooting a Victron Multiplus Compact 2000 that gives a "Low Batt" error. I need some help!
When I opened the units (2 in parallel) was surprised to find that these things do not have terminals to connect voltage sensing wires aka V-sense wires. The owner´s manual talks about them and the install manual shows them but the units do not have them.
(Just to make things absolutely weird, the manual you can see in your web browser by clicking here http://www.victronenergy.com/upload/...2%20-%20EN.pdf
has the V-sensing wires but if you download it and open it with Acrobat you do not see them.)
I would expect that a voltage sensing wire would be used in this thing because even when running the things at 200A (measured at the battery
; including other loads) the voltage drop between battery
and the Multipluses is about 0.55V. (This is consistent with a 18ft cable run of 107 mm2 ) Therefore at 50% SOC the 12v at no load turn into say 11.5V loaded at battery the terminals and 11.0V at the Multipluses...
Now the questions:
- Has anyone been able to make these untis work reliably to their full rated capacity without voltage sensing?
- Is it true that some of these units have voltage sensing terminals and other don´t?