Spirit System

Hello Tomas, I have a YGE 205 controller
in use, the controller has a thin ground cable attached to the RPM line. The signal cable goes to the RPM input, may I connect the ground cable to E2?

HI
Have a look here https://www.yge.de/wp-content/uploads/2 ... EC-eng.pdf
and here http://manual.spirit-system.com/index.p ... _Telemetry
//Latjo

No, to E2 pin nothing should be connected. RPM wire can be connected normally to RPM pin (middle).

Instead, you can use E1 if you want telemetry or proceed according our YGE telemetry guide.

With the YGE 205 .. I have four ground lines.
Bec1
Bec2
Gas signal
Telemetry
There is a minus pole everywhere
The Spirit RS doesn't have that many slots.

You can connect:
1. Throttle - THR port
2. BEC1 - AUX port
3. BEC2 - E1 port
4. Telemetry - SAT port - see YGE telemetry guide.

Is there any other problem with the wiring?

Hello Tomas
I know all that!
If you take a look at the connections of the YGE 205 HV, you will see that it has a minus pole for telemetry and RPM. Unfortunately, you can only solve this with V-cables. But I didn't want that. Now I have I changed from Ex Bus Telemetry to Spirit Telemetry, but the ground cable from the RPM signal is still left. I need a slot for the capacitor

You do not need to connect ground wire for RPM cable. The ground is carried by the BEC/Throttle cables.
So no Y-cable is needed.

I have already had test flights without this grounding cable. It also works almost as it should. The YGE company told me that the Bec circuit board and the telemetry circuit board are separate and therefore there can be damage if the servos are overcurrent. I also don't know whether it is is that bad, besides, I use a buffer capacitor that absorbs the voltage peaks.
I think I'll leave it out, then the helicopter would be properly wired.
I have never had that with any regulator that it carries a ground line everywhere.

But telemetry cable has ground wire connected to the Spirit unit too.
So there should be zero issues.

I still have one question: What are the advantages or disadvantages of Spirit Telemetry (SAT Port) or Ex Bus Telemetry. Unfortunately, you can't use both at the same time. I noticed when I use EX Bus that you can use the I- Can not use motor shunt.
On the other hand, with Ex Bus you can make the controller settings directly on the transmitter.
So which is better?