Hello ! I have 2 victron 200ha 24V lifeP04 connected to a first Lynx distributor then Lynx Smart BMS and then a second Lynx distributor ans a smart protect. After disconnected my battery’s for several hours when I plugged everything back up, nothing happened, nothing startup. No Distributors , no BMS. I have 0 LED on my BMS.
I have a orion 24/24 charger on my system so I started my engine to see if something turned on. Everything (mppt/ smart protect/ multiplus/ )turned on except my Lynx distributor and my Smart BMS. I tried already to unplug for 5 second the 11 pins connector and plugged back on but nothing happened. Anyone who had that already ? Any ideas ? Any advised ? Thank you very much in advance.
Have you checked your battery voltage, have you checked the fuses in the battery side Lynx distributor.
Disconnecting the batteries could look like a low voltage event as far as the Lynx is concerned, but reconnection should restore operation.
Have you worked through Sections 9.1 and 9;.2 in the manual.
Battery’s voltage is good 26,6V the batteries fuse were OK in my Lynx distributor on the day of the event but it’s seems since, so from yesterday there is no more voltage at all in them. Weird. But there is voltage in the busbar, I mean in the red and black bolt at the right end of the distributor before the connection with my lynx smart BMS. Is there an explanation ?
I am not 100% sure I follow. You are saying the fuses have broken but you are still getting voltage.
I can explain how you see the voltage, the fuse detection circuit in the lynx does allow a small current to flow between in and out sides even if the fuses are broken. If there are no loads connected then the terminals will show a voltage.
You have either had a short circuit blow your fuses or disconnecting the batteries has damaged them as you removed nuts or cables. With mega fuses you need to make sure the fuse lug does not twist or bend or rotate when tightening the nuts.
Ok. How can I test properly the mega fuse in the distributor ? What voltage do I need to see if they are broken or not. Thank you very much by the way for your time.
You just need a standard multimeter set on resistance, if the are OK the meter should show 0 resistance. Mega fuses have a resistance of 0.1mOhm to 2mOhm (milli Ohm). So any measurable resistance means they are damaged. Make sure your meter is reading 0 Ohm when the probes touch.
The datasheet for Victron fuses is found at this link
Super. Many thanks. I’ll have a look tomorrow and I’ll keep in touch. Thanks.
Hello, the multimeter is swinging between 0.01 and 0.02 ohms, see picture attached. Let me know what do you think Thank you.
It is 20 times higher than a fuse but with that type of meter I am not sure about the accuracy, the fuse appears OK but not 100% sure. Just to double check, the fuse has been removed for this measurement, you can not measure the fuse in the Distributor because of the fuse detection circuit also providing a potential path for current.
No they haven’t been moved from the distributor but I turn off my battery anyway for the test , is that ok or should take them off to test them ?
Take them off to test them because of the fuse detection circuit.
OK but even if m’y bms doesn’t seems alive ?
To do it properly, yes because the fuse detection circuit can affect the reading.