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Hi,
I have recently installed a similar system to the following link. Model (victronenergy.com). On powering up the system the .5Amp external fuse for the SBP blows immediately. If I bypass the Lynx Smart BMS ATD connections the SBP works perfectly. I have tested the ATD connections on the Lynx Smart BMS and discovered they have a negative connection which explains why the fuse blows instantly. Is this device faulty or is there a setting that needs changing?
Thanks for the suggestions. I have read the manual and watched the YouTube clips. Above image is how I have attempted to connect the system. I installed the identical system a week earlier with no problems and both systems are wired the same way. With no wire in pin 5 or 6, my multimeter reads 12.8 Volts with the positive from the multimeter on pin 1 and the negative on pin 5 or 6. If I attempt to connect positive from pin 1 through a .5amp fuse into pin 5, the .5A fuse blows instantly. Shouldn't pins 5 and 6 be volt free contacts and not have a negative connection? Is this device faulty or is there a setting that can be changed?
@joshalthaus@Stefanie (Victron Energy Staff) Can you confirm that there is continuity between both pin 5 and 6 to ground (system negative)?
Best to contact your supplier for any further testing required, and warranty return.
@joshalthaus you have multiple options regarding the output of the ATD relay / terminals.
Please check BMS manual for the best option for connecting your ATD loads.
And to add to what @klim8skeptic said, please watch this video on youtube where it is thoroughly explained how to wire ATD to a SBP.
You can try updating the linked wiring diagrams you refer to so we know how exactly you have wired everything.
