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Post by iandhunt on Dec 22, 2012 3:10:49 GMT 1
Hey all, I recently got a Turnigy 30A brushed ESC to replace the proprietary/crap one they have in the Super Cub. I also added a Spektrum receiver about the same time....all joints are connected properly....nothing is "reversed". I did a range check a few days ago and all went well.... Well, I did a few more mods to the struts, gear, etc....nothing electrical.....I went to do a range check to make sure everything is tight and it worked great with my receiver. All surfaces and motor responded. I lowered it down to 0 throttle with the transmitter, it stopped the motor no problem....shut the transmitter off and the motor went up to 50% power with the transmitter off. I turn the transmitter back on while still leaving it in throttle 0 position and the motor quits....is this an ESC or receiver problem? Not good if I lose signal and the plane just cruises off into oblivion....
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Gohmer
Squadron leader
Posts: 113
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Post by Gohmer on Dec 22, 2012 20:51:07 GMT 1
Try binding the receiver again. Make sure the throttle stick and trim is all the way down before you bind.
You shouldn't shut off the transmitter with the flight battery connected. Transmitter on first and off last.
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Post by iandhunt on Dec 22, 2012 22:23:37 GMT 1
I was trying to see what would happen with signal loss, and cutting the power on the transmitter while it was on the ground was a good way I thought of seeing how it handles a signal loss. I will try rebinding and see if that helps any. Thanks! Just was wondering WHAT is possible causing this. Rebinding the receiver seems like a good idea, but why would the engine turn back on once the transmitter has had the power cut.....trying to understand the issue at hand.
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Post by flydiver on Dec 22, 2012 22:52:18 GMT 1
Check out 'fail safe' for Spek. RX. AND, is it a 'real' Spek RX? If not....well, you are on your own.
In general, the 2.4GHz community is ignorant or has gotten lax with the rule of [Transmitter on first and off last]. You have all kinds of weird things that happen if you turn off your 72MHz TX but leave power to the plane. 2.4 generally does not do that but I have seen it have issues.
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Post by iandhunt on Dec 23, 2012 2:49:21 GMT 1
So I guess I am just (un) lucky. I got the receiver with the transmitter from Hobby King a few months back.....I HOPE it is real.....are there a lot of fakes on the market?
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Post by flydiver on Dec 23, 2012 4:18:41 GMT 1
If it's an ORANGE RX, it's a copy and generally pretty good.
If it looks like a real Spek but is way cheaper, it's a clone. Yes, there are a LOT of them on the market. What sticks in the majority of people's craw about brand name 2.4GHz RX is the high price. So, people are flocking to the clones, especially the Orange RX. When they first came out they were always sold out.
HK mostly does not sell genuine Spektrum. They sell hoards of knock-offs. Did you get one of the new Orange TX?
Remember Spektrum DSM2 and DSMX are proprietary BRAND NAMES. 2.4GHz systems in general are the generic term. There are LOTs of 2.4 systems on the market. HK sells some JR which are also real Spektrum but mostly they sell their own stuff.
If it was cheap, it's wasn't real Spektrum. It may work but you can't expect Horizon help or support if it doesn't.
The RX is looking for a signal if it has power. Lacking a signal it may send weird inputs to the ESC. Why it does this sometimes and not others is a mystery to me. Best case > remove the power before you turn off the TX.
Again, do some googling on fail safe or read the manual. It may work and you just have it set wrong.
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Post by iandhunt on Dec 23, 2012 4:48:55 GMT 1
It was definetely NOT cheap.....compared to an Orange RX, it was very expensive. Just tried it again and it magically worked fine....well played Mayans, well played! Thanks again.....do you recommend a particular brand? Money isn't an object, especially flying with a HD camera!
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