Hi Bax,
Thanks for the response. It functions just like you describe. I have Switch D deactivating the motor. When it's off, the LS slider is ignored - the motor will not run. When switch D is on, the slider operates the motor - zero rpm to max.
But I still get the error when I power on the TX. I have to disable (INH) the motor function and then re-enable it after I power on. Then it works fine again. Here is a video showing the condition. I forgot to show that changing the position of the Switch D or the position of the slider after power on, does not help. https://youtu.be/Pl-rftPsxLM Did I find a bug?