Hi!

Try and adjust CV55 as mentioned in the ESU manual:

11.1.2.2. Parameter „I“ Parameter „I“, stored in CV 55, provides important information to the decoder on how much inertia the motor has. Motors with large flywheels naturally have more inertia than smaller ones or coreless motors. Adjust parameter „I“ if the locomotive jerks somewhat just before it stops or „jumps“ at lower speeds (lower third of the speed step range) or simply does not run smoothly.

Increase the value by 5 starting with the default value for motors • with very small or no flywheels. Reduce the value by 5 starting with the default value for motors • with large flywheels. Test again and repeat this procedure until you arrive at the desired result.

Or alternative you could try the automatic calibration which is also mentioned in manual.

Below is the recommended settings for a faulhaber motor with a lokpilot decoder V4:

Motor type Remark CV 2 CV 51 CV 52 CV 53 CV 54 CV 55 CV 56
Faulhaber® motor 4 0 32 140 80 50 255

Good luck and best Regards
Lasse

Hi all,

The table in the manual showing the "faulhaber settings" was ok, but not great. So then I went to plan B: automatic adjustment

The automatic adjustment was better, but still not great. Tuning CV's starting from there has done a lot, and I have only this strange "lurch" left, at the same point in initial takeoff and final stop.

CV55 seems to have done the job! I tried it before, but to no avail. Recommended value was 50 as per the table you have all seen, and the fix was just at 5. (literally- HUGE difference) I hadn't tried anything so dramatic last night...

Thanks again everyone, I guess patience prevails!