Issue with TCB rebooting with certain actions

[Jib]

So there is a 40A fuse between the battery and the on switch, and the the on switch is actually a little DC breaker which itself I think has a 40A fuse, so maybe there’s some kind of overheating protection thing in there? Because nothing was happening when I flipped the switch. The case of the breaker/switch is transparent, and usually when I turn the model on there a little spark you can see inside the switch/breaker box. When I was trying to turn the model on after this happened, there was no spark, no nothing.

I know exactly what’s sucking up all the juice, it’s the 24V traverse motor and it’s ESC. Maybe also the drive ESC.

But yeah, this is not a TCB problem. I’ll try one of the electronics forums here and the guy who makes the ESCs and see if anyone has any ideas.

Thanks for your help!

[tankme]

Makes me wonder if the battery heated up or too much current was being drawn and went into a protection mode. I don't think those breaker/switches have any kind of electronics in them if they are like the type I use: https://www.amazon.com/RED-WOLF-Waterpr ... hdGY&psc=1

[Jib]

That looks a lot nicer than what I have. Mine is similar to this:

https://a.aliexpress.com/_mtz25AV

Except the case is transparent.

I know those batteries have a kind of regulator circuit built into them or something, maybe it was that? Because it wasn’t just one component that stopped working, it was like something cut the power to the model.

[tankme]

Some batteries have a BMS (Battery Management System) board built into the pack. It may have initiated a cutoff for some reason.

[Jib]

That’s what I was trying to think of, the BMS. Yeah I’ll look into what conditions may cause one to cutoff power.

Thanks!

[Jib]

So I think this is the culprit

Overload:
If the battery is being asked to deliver more current than it can safely handle, the voltage may drop, triggering the BMS cutoff.

So I’m currently using a 24v 200 rpm motor, I just ordered a 24v 120 rpm motor, so I’m hoping with less rpm’s maybe I can lighten the load on the system, but not sacrifice too much speed on traverse

[Jib]

So, I found the culprit. An M6 screw from the turret dropped down just enough to get wedged into the turret ring gear. I imagine I was cruising along, the stabilization unit was controlling traverse, that screw came loose, wedged in the turret ring, the stabilizer tried to force the turret to turn and the BMS said no sir.

I haven’t taken it out again, but this makes sense to me why this would’ve happened.

I am having another issue that does seem TCB related, in that sometimes if I turn the model power off and then on again, even like 30 seconds or so later, when booting up the headlights turn on, but instead of blinking rapidly on start up, they just stay on, and the red LED on the TCB stays solid, green LED stays off. Al the other components boot up correctly, but there is no sound or response from the transmitter.

If I turn it off and wait a while longer, it will boot up correctly usually. The longer I wait, the more likely it is to boot up correctly. Do you have any idea what might be going on here?

[Sub]

Could be 2.4ghz radio.
I use Spektrum radio and when i power on the radio there is a slight delay as the receiver powers up and establishes contact with the transmitter where as the TCB powers up instantaneously and some functions come to life before the full radio connection is made they reset when the rx is up to speed, prob why the red light is on the TCB as there is no radio signal detected initially...that's what mine sometimes do.
You can tell mine is doing it as the rx has an orange LED built into it that turns solid orange when connection is made.
Hope it make sense.
Sub.

[LukeZ]

I can't say I know exactly what's going on, but I'm inclined to agree with Sub that it probably has something to do with the receiver, or with the order in which things boot up. What is strange is that it sounds to me like the TCB is freezing up. It could be that if the receiver fails to boot properly it sends gibberish to the TCB that causes it lock up. When this happens you could try pressing the Reset button the TCB and see if it recovers.

[Jib]

Okay I’ll give that a shot the next time it happens. Yeah I usually wait until I get a “signal lost” on my transmitter before I turn it back on again, but maybe something is still going in the RX. Sometimes I’ve waiting like 30 seconds or so and it still locks up. Sometimes it doesn’t?

I’ll give that a try next time though.