Getting to know my Schambeck

[Mosquito]

I have a new Schambeck AFT 19 unit factory installed in a 6 meter ship.

I know that there were some questions on adjacent threads about the bigger brother AFT 25 and saw some good informative answers. Instead of sending a private message, and leaving out some that might also have the same questions, I decided to keep the questions public so others can enjoy following. And to of course, show my lack of knowledge of SLS systems! :D

I will be using the YGE 120 HV speed controller that has already been set up for this SLS.

On the black negative battery lead on the YGE speed controller, there is a yellow wire soldered (and insulated) to the negative lead. This has a 2mm male connector on the opposite end. In looking at the Schambeck wiring scetch, it shows this yellow wire being connected into the 3 wire battery motor harness (the motor side of things, that goes into the motor unit itself). I am not sure as to what the wire does? I did see buried under the shrink wrap on the motor side lead (the one that is attached to the motor) a gold 2mm female connector that I am assuming is supposed to receive that yellow wire. Anynone know what the purpose of that yellow wire is? I have spoke to others that do not have that wire attached to anything.

Also, are others using a fuse in the battery line? Are people using the red "anti spark" wire on the speed controller? I am using 5 cell Lipo packs for mine (in series).

I attached a scan of the Schambeck supplied sketch and have scribbled over the German words with an English translation. On the left side, you can see the wire "anloten (soldered)" to the negative battery lead.

Thanks in advance!

Tim

[Harm]

The small fourth connection is connected to the metal shielding around the three wires between esc. and motor, hidden under the shrink wrap.
This was beneficial at the time we were flying 35 mHz or 72 mHz.
With the new 2.4 GHz radio technique this shielding is not that important anymore.

[Mosquito]

Harm,

Thank you for your response!

Tim

[kjkavaney]

Tim (mosquito) is threatening to abandon the rest of us Minnesota Aero towers once he gets his self launch system up and going in his new LET 6 meter Ventus.......He has a Pegasus but I believe he will no longer be willing to bring it to the field to help the rest of us get aero borne..

I request that you do NOT help him get this Schambeck gizmo working or the rest of us Minnesota guys are screwed....in fact, tell him things that will disable it permanently !!!

Kevin....in need of a tow in Minnesota..

[sjaa]

Harm is right, Schambeck has confirmed that the shielding is no longer needed with 2.4 systems.

Jo