"posted for Stefano"
How should I set the MPPT charging profile as to work well with the WS500?
I run a WS500, with a Victron SmartSolar MPPT, all connected to a Cerbo GX and Smart BMV712. They all charge a T-105 with 6 units, for a 3 12VDC banks. I have a few questions.
All working file at the dock as far as i can tell.
The WS500 is follows the T-105 profile and the parmaters are shown below
1) What is the proper charging profile for the MPPT? Should it be exactly the same as the one specified in the WS500 config file? Or should solar somehow be subordinated to the WS500? Which one should go to float first? Right now the MPPT charging profile is set to generic preset for flooded batteries, but conisdering changing to expert.
2) Left the dock for a sea trial with batteries fully charged. All was good for a while. At one point the engine tachometer shut down, and the alternator stop charging. I turned the PV off suspecting that it may have had something to do with it and the charging voltage came back and tacho too. What is the likely cause of the stop charging. Any insight about this situation, possible approaches to address?
I did not have the time to extensively investigate and trouble shoot and I am trying to understand why and how to prevent in the future.
Is there any documentation about this type of system optimizaton?
These are the config paramenters for the WS500.
# Trojan Signature Line Flooded
$SCA: 0,85,0.90,0.75,0.50,0,0,0,
$SCT: 12,2.83,0,0,0@
$CPA:7 14.7,240,10,0@
$CPO:7 0,0,0.0,0@
$CPF:7 13.5,-1,0,-10,0,12.9,50,0.0@
$CPE:7 16.2,0,180,10@
$CPP:7 0,0.0,0,0.0@
$CPB:7 0.030, -9, -45, 45, 0.0, -99, -99, 0, 65@
$SCN: 0,Trojan T-105,1234@
$SCO:7,1.35,0.0,0@
The main presets for the MPPT are
Absorption 14.4V
Float 13.8V
Equalization 16.2
Re-bulk voltage offset 0.4V
Thank you very much,
Stefano