Swashplate CCPM 90° Velos and Subtrim / Servo Travel correction

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Storchy
Posts: 107
Joined: Tue 10. Dec 2019 10:46:57

I use the CCPM 90° Velos for a Vario R22 mechanic.

I there no positiblity to Subtrim the channel 0 ?
I there no posibility to make a servo travel correction on channel 0?

Thanks for your help!

Ciao
Jörg
Sepp62
Posts: 37
Joined: Sat 07. Feb 2015 22:14:51

Selecting "CCPM 90" degrees gives you a subtrim option for CH0 in the PC configuration software (Version 4.0.2).

It seems, that travel correction must be done via the remaining 3 servos.
Storchy
Posts: 107
Joined: Tue 10. Dec 2019 10:46:57

I Found the subtrim for Channel 0 in 4.0.2,
Thanks for the hint.
But there is no servo travel correction for channel 0 in the in the corresponding dialog.
I can not understand, how i will make a travel correction on Channel 0 with the 3 other servos.
The servos are all independent of each other.

Jörg
Attachments
SubtrimC0.png
Sepp62
Posts: 37
Joined: Sat 07. Feb 2015 22:14:51

Travel correction is used to make the swashplate level in the lowest and highest position.

If you have adjusted the subtrim at 0 degrees and roughly the overall collective travel under "Limits", it should be possible to make the swashplate level by correcting the other 3 servos. It will not be possible to change max and min pitch with this method (thus you need the setting under "Limits").

I never tried this, but this is my guess how it could work. At least for your scale model, which is not dependent on a symmetric pitch range. Limiting pitch for the negative pitch range, can be done on the transmitter side.
ZeXx86
Site Admin
Posts: 12849
Joined: Mon 29. Apr 2013 16:06:44
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You are correct. Travel correction can be made by remaining 3 servos to match travel with the 4th servo.
Spirit System developer
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