1. The First motors rotates the one grating For iBTF control, we have 3 independent motors. iBTF Control The second do the same, making both parallel. And the third motor (behind the instrument) make the light beans parallel. What kind of motors is this??? It’s a Mitsubishi servo motor with 1/20 reduction gear. These motors have 262,144 pulses/revolution giving 7,281pulses/degree!

2. And click GO button Put the calibration constrain (always the same) You just put you angle here The other way to use this software, is controlling it remotly on TCP-IP connection. The iBTF Software Control can be completly opperate remotly Make conection with the PLC The other buttons is used to calibrate the iBTF and the software and hardware. iBTF Software Control It’s a very simple interface software, between the user (or other software) and the motors You just set up the communication port

3. Put switch in the corners Risk of colisions between the grating This grating translates to keep the light-path on axis. There is a risk of collision between the gratings But we need more security stages, because the motors drivers can broken (for exemple) or become uncontrolled. This is a open question yet. We have one idea: HINTS ARE WELCOME!!! As a 1st level interlock, the software calculates the distance between both gratings to avoid collisions.