It mean no signal or a signal bellow it’s minimum is sent to the ESC.
Ok, thanks. Figured it out, had the polarity wrong on the ESC/Nano connection. I’m going to try a test flight today, hopefully, and I’ll let you know the results.
I flew the copter thru 4 fully charged batteries and the motor didn’t shut off. After the last time the motor shut off I noticed the deans connector between the battery cable and the power harness were separated slightly (a fraction of an inch, not completely separated), I wonder if that may have caused it? Seems like all the motors would have stopped though.
I would go toward your assumptions with this. It would shut everything including the flight controller however not 100% impossible.
Have you tried to swap the ESC to another location ?
Yes I swapped the ESC to another location, sorry forgot to mention that.
And the problem move or not ?
No motors shut off after flying through 4 fully charged batteries after switching ESC’s to different motors.
Ok - But so no issues since you move the ESC.
Could it be the Deans between the ESC and the Power Harness ?
I don’t think so. I do have a Spektrum flight pack voltage sensor that is connected via deans connectors between the wiring harness and the battery.
Hello again. The weather is finally good for flying and I’m still having problems with the left rear (D6) motor shutting down intermittently. I tried switching the ESCs (see prior post) and it’s still the left rear motor thats shutting down. I flew through 4 fully charged batteries and the motor shut down 2 or 3 times. I’m wondering if it could be the motor?
I know it’s a lot of testing but can you swap the motor now ?
This might tell us exactly if the motor is the problem or not
Before I swapped the motors I flew the copter one more time. The copter crashed and I had to order parts but when I was taking the tail apart I noticed that the left motor wire was chafed where I could see bare wire. I’m wondering if the bare wire may have been making contact with the metal standoff causing a short. I covered the exposed wire with electrical tape, do you think it’s ok to fly or should I just replace the motor?
Hard to know, to do bad things the bare wires would need to get in contact with another conductor to create a short.
Ok, I flew the copter thru three fully charged batteries and had no motor shutdowns, so I believe the bare wire was causing the problem. I have a couple other issues I was wondering if you could help me with:
- When I engage the “return to home” mode the copter begins to climb in altitude instead of returning to starting point. I have satellite lock when armed (blue light flashing on and off). What would cause this?
- For the most part I can hover the copter without any stick commands but sometimes the copter flies erratically and I have to fight to keep control. Maybe it was me, but I lost control completely a couple times and had a crash. If I lost communication with the transmitter the fail safe should kick in (I have the fail safe box checked in FCT). I’ve been flying in “ANGLE” mode with BARO engaged and I’ve experimented with gps hold on and off. I really haven’t noticed much difference when using gps hold though. Am I doing something wrong or is the Quadrino Nano possibly malfunctioning?
Ok - That’s a good thing, do you feel the bare wire was a fabrication default ?
- In Return To Home we think MultiWii is using the Barometer as well to maintain it’s height. In WinGUI you will find a parameter called “RTH Altitude(m)” which is the height at which MultiWii will climb. You can set it lower if you want.
- There are multiple level of FailSafe, for example if you have something in your Transmitter for that regard then MultiWii might never see that there is a problem.
It’s best to use Horizon mode instead of Angle. (info)
Not sure if the wire was defective, didn’t notice anything when I assembled the copter but I don’t see how the wire became bare. I’ll try your suggestions, thanks! It might be the FailSafe settings on my transmitter. I like my Spektrum transmitter but their user manual is sort of vague.
Hello again. I ended up buying another motor because I was still having the left rear motor shut down. After replacing the motor I flew the copter through a complete battery cycle using a 4200mAh 35C 3s LiPo and had no shutdown. I then plugged in a 3500mAh Lipo and almost immediately had the left rear motor shutdown. I’m wondering if maybe the ESC was hot from the previous flight which might have caused the shutdown? I’m using Lynxmotion 30A ESC’s, are they prone to overheating? The left rear motor’s ESC is underneath the copter where it doesn’t get much prop wash to cool it so it got me wondering about that.
Can you verify if that ESC is actually the one connected to PIN-3 of the flight controller ?
This would be the one that power everything from it’s build-in 5v BEC (voltage regulator)
I checked and that ESC is NOT connected to pin 3, it is connected to pin 5 (motor D-6 as in the diagram on page 6 of the Quadrino Nano user manual). I connected the motors using the diagram for V-Tail 4 on page 8. It’s a little confusing because of the rear motors being upside down as to the motor orientation on the diagram. Looking at the diagram I assumed that motor D-6 would be the left rear position (if the copter was sitting on the ground facing away from you) and motor D-3 would be the right rear position. The ESC on top of the copter that is connected to motor D-3 is the one that is supplying power vis it’s BEC.
Those diagrams are Top view so yes you have the right orientation.
As for the Motor / ESC problem i’ve never seen anything like that but if you want to confirm the ESC you can move it to another location and maybe do a bench test (copter strapped to a table).