All Z motors (for P1, S2, S3 and P4) have been initialized again with a proper HOME command with their own controller with the "superviser" software (which means they all moved to the +1650000 position).
Thus, they have been moved to their default position : +825000 for spherical mirrors (S2 and S3) and -825000 for plan mirrors (P1 and P4).
reminder : lower values on the motors makes the motor tip going inside which makes the cavity length larger.
thus spherical mirrors are in default position with a possible big range to put inside the motor tip (for thermal effects compensation).
by complementarity, plan mirrors are in default position with a possible big range to put outside the motor tip.
the Labwindows CVI was buggy about the proper representation of the motors motion in Z direction (wrong direction and wrong default position).
the software is now fixed.
| Loïc Amoudry wrote: |
|
S2 and S3 z-axis are initially at 1/4 (5mm/20mm) of there range over ~20mm range. This is meant to be able to spread them up to ~15mm in case of thermal effect.
Actually, they are in an opposite position. Means that they can only be spread of 5mm from the initial position.
|
|