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Post by purevw on May 23, 2013 20:00:45 GMT -8
First off, I must apologize. I didn't see how to start a new topic for the SuperCP, so I'm posting here. I just received a new SuperCP and Devo 7E today, purchased from WHSS. It has a couple of problems that I am trying to troubleshoot. The tail rotor fails to run at correct speed at times, and sometimes won't start at all unless you use hard right rudder. Sometimes it works normally and other times It can't be controlled. It is possible that the brushes are not correctly seated and running it for a while might help. The failures are random. The second problem seems more serious. The swash plate seems to be binding up under load. With no throttle, the servos return to neutral position when the stick is allowed to go back to neutral position. The swash plate returns to it's "Straight and level" position. Under power, it seems to drag when moving and fails to return all the way back to neutral position. The swash plate will remain partially tipped and not return to it's straight position. It is as if the servos are really underpowered. The ball-cranks are free and there is no binding anywhere that I can see. Everything is set according to the instructions. The problems also exist when using my Devo 12S transmitter. Both transmitters were set up per the user manual. I even removed the main blades as a test and even then, the servos failed to properly move and return normally when under throttle. I should also mention that all attempts to analyze the problems were done with fully charged batteries. I would appreciate any advice or suggestions. I am at a loss.
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Post by purevw on May 24, 2013 18:47:00 GMT -8
I am waiting on Walkera in China to respond to my message, but for now I have been able to get things somewhat under control. I did so by first realizing that the gyro was responsible for the strange behavior of the servos. I unplugged both motors and the servos still failed to return to their neutral positions when the stick returned to center. The potentiometer for the gyro on the Super CP may be bad, as making wild changes had no effect. regardless of where it was turned, the behavior remained the same. Giving up on hardware, I went to software. I "reset" the Super CP model in my Devo 12S and then played with the gyro settings. I found that setting the sensitivity to 100% gave the best results. If I set it to zero, or disabled it, the Super CP would not even start the tail rotor and just spun wildly to the left whenever throttle was applied. I used the same settings with the Devo 7E that came with the unit. Again, 100% gyro seemed to be correct. It also solved the unresponsive swash plate issue. In the end, I may need a new circuit board since the gyro obviously has problems. I'll leave that up to the factory. Hopefully they will answer soon.
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case
New Member
Posts: 25
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Post by case on Aug 24, 2013 9:27:22 GMT -8
Just a question.
When you "Bind" the helo to the TX, is the chopper flat, level in both directions, and not being touched?
I ask this because it seems those little gyros are very sensitive to movement and orientation when they are initializing.
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Post by cds1950 on Aug 24, 2013 18:35:45 GMT -8
The answer to this is you should have it on a flat almost level spot. Do not touch or move it until after it binds. I always have it facing the way I intend to fly but I don't think that is critical. During the binding process all of the gyro's are calibrated to their center point based on current orientation.
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Post by cds1950 on Aug 24, 2013 18:49:57 GMT -8
I just created a new board for the Super CP. Sorry.
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Post by cds1950 on Aug 24, 2013 18:53:12 GMT -8
I would suggest that you contact WHSS instead of the Factory for this issue. I know that WHS test flies all of their products before they send them out so it should be OK.
See post about binding. It is very critical that you follow the set flat and do not move during binding process. Beyond that I at a loss.
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Post by sootyny on Sept 1, 2013 17:04:41 GMT -8
I had the same problem on my master cp I found I had used the optional setting for my devo 10, swash type 3 servos 120degress instead of 1servo normal as per cp manual now it works perfectly servos dont bind at full travel and tail motorworks normally not shure if its thesame on the super cp but it took me a while and a few new servos and parts to figure it out now I can finally get it to hover
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Post by strutter on Aug 4, 2014 15:42:42 GMT -8
Sorry the subject hasnĀ“t been created, QR X 800, quad, some one can be create for me, i need help in this concern?
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