Spirit System

Hello,

I did set up a heli with the Spirit Pro (Ver. 2.4.1) and went to the flying field for fine tuning yesterday. I fine tuned servo subtrim values in the Spirit Pro at the field via HoTT (with Graupner MC-20). However, as soon as I saved the new values to the Spirit Pro, the 4 servos (swashplate & rudder) didn’t move anymore and I got a single receiver voltage alarm from my MC-20 (receiver telemetry showed proper Rx-voltage though). It seems as if the Spirit Pro went to failsafe mode (all servos are set to 0% in Spirit Pro Failsafe). To get the system back to work, I needed to disconnect and reconnect the main power (and thereby initialize the Spirit Pro). This happened several times and always when saving to the Spirit Pro.

Moreover, when I powered the heli a few hours later back home again, the Spirit Pro never showed up as sensor in the telemetry menu of my MC-20 anymore. The Spirit Pro is now only accessible via USB or Wifi-Link but not via HoTT anymore (powered the heli off and on several times and waited half an hour for the Spirit Pro showing up again in the MC-20’s telemetry sensor list (as GAM)).
The Spirit Pro is connected to a Graupner GR-16 receiver via SUMD and the HoTT integration cable.

Any ideas how to get the Spirit Pro back to work via HoTT, and how to save servo values in the unit without having to re-initialize the entire system?

Cheers

Hello,

can you describe your connection, please? Do you use any external sensor?

There are many MC-20 users and fortunately it is working well for them, so I believe we will find the issue.
I recommend to check the cables first.

Do you use HoTT integration cable? If no, is the wiring same?

Has your receiver enabled Telemetry port? During re-bind it is returned to default.

SOLVED

Heck, it's been the Y-cable, which connects the telemetry of the ESC (Graupner Brushless Control) and the Spirit Pro (via your HoTT integration cable) to the GR-16 telemetry port. The ESC always worked but the socket of the Y-cable to the Spirit Pro didn't connect properly.
Now both work!

Thank you!

Great! Thank you for the message.