Did you ever figure this out?

sadly no

After compiling the script, go into the program block's custom data and set the following:
ALWAYS have Max be greater than Min; and don't go beyond 358

This doesn't work, it still goes in a full circle regardless

set max and min angle in Custom Data actually works, the problem is at the script reads these data in... some step i don't exactly know, but it works im sure. i tried set then set;step then recompile then refresh and some operations (sadly i forgor) it is rorating 0 to 90 degree

I had to manual find the rotor angels i wanted then set the max to -100 and min to 60. after a few restarts it seems to work just need to check witch way you need to to rotate for max and min to see which needs to me - or not