markind

Hi there, I'm working on my first electric plane (Multiplex MiniMag) and I have a Q on the LiPo-to-Receiver Connection.

I was told that the Receiver can be powered by the main LiPo battery pack, so its not necessary to have a separate battery (like the 4-AA pack that came with the Receiver) to run the Receiver and Servos.

How is this done? I can't see how to do it from the ESC diagram or any of the Futaba manuals...

Thanks in advance for the quick help!

I wanna make sure before I power it up! I am close to my first live motor test!

~mArK

markind

Well, it looks like the Receiver draws its power from the Throttle Channel connection that goes to the ESC.

Can someone confirm? Thanks!

jdetray

Hi Mark-

You have it correct. Plug the battery into the ESC. Then plug the ESC into the throttle channel on the receiver (usually channel 3).

The ESC contains a battery eliminator circuit (BEC) that regulates the lipo voltage to a level that is safe for the receiver and servos.

This assumes that your ESC has a BEC, of course! Most of them do.

- Jeff

scoooper

mARKIND:Batt to ESC, esc TO RECEIVER YOUR BUB SCOOOPER

markind

Confirmed!! Thanks it works!! The servos work, but I think there is not enough charge in the LiPo to get the motor running. I will charge it and then my first live motor test should work!

The LEDs on the ESC are off which indicates "Cutoff" and when I give full throttle stick it flashes red LED indicating "Reset". Should be ready to go after the LiPo is charged!

~m

scoooper

THATS GREAT! XMAS IS SAVED, HOW BOUT SOME PIXS WHEN YOU GET HER GO'IN, YOUR BUB, SCOOOPER

markind

My first ever RC electric motor test PASS!!!

boy, I got a bit of a shock though when it became clear I had go into the radio and REVERSE channel 3 Throttle!!

Ack!!! I had the stick all the way down and the motor is ripping at full speed and I thought Uh Oh but then I moved the stick up and the motor was under control!!

Unfortunately, during the not totally unexpected burst to full throttle the propeller flew off!! [:@] Ack!! [:@] I am glad it did no damage... and the prop itself seems fine. I had the prop glued down with epoxy as I saw in the assembly video, but I guess it was the wrong stuff... [&:]

After unplugging (YES! I used Dean's Ultra Plugs! Worth the extra buck!) the LiPo I went into the radio (7CAP) and Reversed the Throttle channel. Now it all works like a champ!

Two problems remain:

I have set up for Flaperons. Everthing seems fine but the Left Aileron (Channel 6) moves with too much swing compared with the Right Aileron.

Also, it took maximum Sub Trim to get the 'default' stick-centered condition with flat (zero) Ailerons for both Left and Right.

And, when I turn the dial, (Channel 6 also) I can see the Flaperon effect working, but again it is too much swing on the Left Aileron (again Channel 6 - its what I figured it should be based on the manual).

Mechanically, everything looks dialed in.

This may not be the right forum to get help with these issues, I will copy to another that may be. Still, I will check here for any help offered.

T H AN K S!!

~mArK

markind

Great pic Scoooper Bub!! You guys look like look like an air show ready to happen!

How do I attach a pic? I will take one of my soon to be famous MiniMag!!

markind

Got it figured out! Here is my hopefully soon to be flying MiniMag: