motor spins when I turn radio off?
- Thread starter tree98
- Start date
rcspaceflight
creator of virtual planes
What receiver are you using?
rcspaceflight
creator of virtual planes
I wonder if it's a bad Rx. But I guess that depends on how fast the motor is spinning. Does it rev up to full throttle, just a slow rotation. or what?
DDSFlyer
Senior Member
When you power on or power off the procedure should go in this order Power ON Tx then plug in battery, Power OFF, unplug battery then power OFF tx. This will save you from uncontrolled flyoffs, which happen and can have bad accidents especially from the gas days. Heard a story of a guy almost chopping a guys leg off when his plane took off after turning off his Tx before unplugging his plane
If the reciver is on, it is looking for a signal. How many things run on 2.4ghz? In other words, the reciver finds something, tries to decode it and then outputs a signal to the hardware. Again...reciver is only on when tr Tx is on.
This^
Part of flying is being SAFE! You want to come home with all your planes? Forget it... I'd rather come home with all my fingers. Remember... you need those fingers to build and fly... what you fly!
orcusomega
Junior Member
I would recheck the failsafe on your remote. I am not 100% familiar with all the remotes out there, but at least with Spektrums, then position the remote is in when you bind indicates what will happen when/if the RX loses contact with the transmitter.
For example, if your throttle hold is on when you bind, when you turn off the remote before unplugging the battery, the motor should stop... This has worked on my Spektrum surface radios, I am not 100% sure about all, so please double check your radio's manual, but I think you get the idea.
Hope this helps!
Bob
For example, if your throttle hold is on when you bind, when you turn off the remote before unplugging the battery, the motor should stop... This has worked on my Spektrum surface radios, I am not 100% sure about all, so please double check your radio's manual, but I think you get the idea.
Hope this helps!
Bob
But why does this not happen with every plane?This is the first time I've run into this problem?
dwardio
Member
I've seen this most often with ParkZone micros-- the ones with the single board containing receiver, brushed esc, and 2 linear servos. It's most likely differences in receivers. If you want to check this, bind to someone else's tx and see if you get the same behavior.
That being said, the correct answer is always power down your plane before your transmitter. Period.
That being said, the correct answer is always power down your plane before your transmitter. Period.
Absolutely. If you ever get the chance to try a 72mHz radio, watch the servos start jittering as soon as you turn off the Tx. Make sure the prop is clear and the plane is secured though. 2.4 is better but not bulletproof so the best practice is to always power the transmitter on first and power it off last. The only time you vary this is during binding or testing the failsafe, and then you want the plane secured and prop clear for safety.
sconner
Member
I think what Bob said is most likely the case. But...having said that...I agree to always power off your plane/heli/etc first. Then the TX. I've had the same thing happen with a new RX. Accidentally powered off the TX first and vroooom! Scared the heck out of me. Thankfully it was just a little slow-fly and I was holding the tail at the time.
sconner
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