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Old 01-01-2020, 04:08 PM   #1 (permalink)
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Default What would cause RCE-BL50X ESC to re-arm itself mid-flight?

So I've been doing some testing with the MB+ governor in my 470LT, tweaking some settings, and re-testing. Trying to determine which works better; the Align ESC governor or the MB+ v5 governor.
So today after a few pitch pumps, I got fairly high up and brought it straight down at pretty high speed, stopped it and went into a hover about 15 feet off the ground. After about 1 second of hovering, the ESC shut down and re-armed itself. I still had full pitch, cyclic, and tail control, so I did a baby auto down to the ground. Because The motor was shut off, I didn't think to hit throttle hold quite yet, as I was focusing on autoing successfully. while autoing down, I assume the MB+ governor cranked throttle output to 100% because it knew the motor was well below desired speed, and the ESC went into setup mode WHILE I was autoing down.

It did let out some strange beeps a couple times after the fact, but I don't know what they meant and I don't remember exactly when they did it or what my sticks were doing when it beeped.

At first I thought maybe I had a brownout. But I never lost any control with the MB+ functions. Only the ESC re-booted. Then I thought maybe the ESC went into a thermal protection mode because I was pumping collective a bit hard before-hand. But the ESC was barely even warm to the touch right after I got it safely to the ground. I also thought maybe it hit LVC, but I was only flying for about 90 seconds on a fully charged healthy battery, and cell voltage was 3.97 across the board. And LVC would not cause the ESC to re-boot.

Any idea what could have caused the RCE-BL50X ESC to shut off and re-arm itself mid flight without dropping power to the MB+?
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