@JachyHm I just found an flaw in the PZB:
Situation: After passing the 500 Hz Magnet I come under 15km/h just after the Magnet, but keep rolling towards the Signal (kurzer Beeinflussungsweg): 85 <=> 70 and 500 Hz
just before stopping I had driven the 200m: 500 Hz goes out, 85 <=> 70 stays.
Then I get an Zs1: So I have to override the Signal with Befehl 40.
I start driving, just ander 20 km/h I come accross the 2000 Hz magnet, while pressing Bef40, as I would in real life. But as I go faster I get an emergency break just as I go above 25km/h, where I should NOT get one (still only 85 <=>70)
After grinding to a hold, I press Frei and continue driving, still 85 <=> 70, once again at 25 km/h: brakes Apply and the PZB thinks I did something wrong, wich I have not.
So there seems to be an problem when overriding an signal AFTER the end of the "restriktive Überwachung".
here a few screenshots:
Situation:

first time 25 km/h:

speeding up again after releasing:

and once again at 25km/h

yours FabiaLP
EDIT: Could you maybe change the LZB/PZB Prüflauf a bit? 
here is, how it should look like with an MFD:
https://www.youtube.com/watch?v=2SXBU7xt8xI