I took my camp trailer on its first road trip since its big Victron install. Everything worked great, but I have a question about the operation of the Orion XS.
My tow vehicle is a 2022 Kia Telluride. I have dedicated cable running from the battery terminals to an Orion XS (5-6m). The voltages on the cable look good and the Orion charged the battery in all of my tests at home. On the road, it started out charging great, but cut out after a while. I’m pretty sure it’s because my smart alternator dropped the voltage. I see Input Voltage values as low as 12.2 in VRM.
Any advice is welcome.
Hi, give us a screenshot of the xs settings and how you wired the l/h signals.
Thank you all. I found another thread where @pwfarnell called the 60A online circuit breaker that I used, so I’m going to check my voltage drop under load first and if it’s much more than the theoretical drop of my wire run, I’ll do an ignition fuse tap and run another wire.
Disable the shutdown detection, connect h to “ignition”, leave l open, lower lockout to 11.9v
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You are probably on the right track there.
The defaults assume 12.5v to be the lowest from a smart alternator.
Either the voltage drop over the cable also has a bearing here or your alternator is outputting less than expected.
You will have to lower the lockout to compensate.
The manual has some indepth explanations.
Summary
Minimum alternator voltage: A smart alternator can operate at very low alternator voltage (<12.5V/25V) e.g. when the vehicle accelerates. Charging during this low voltage is allowed during shutdown as shown in “engine shutdown detection sequence 3→4”. If charging must remain enabled during this period, the lock-out level must at least be set below the minimum alternator voltage.
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