MediaLas AttaXX 10 RGB User Manual - page 8
8
The ILDA standard
Driver is set too fast or output speed of computer is too slow. The inner circle
is larger than the green square.
Driver and output speed matches together.
Driver is too slow or output speed of computer is too high. Readjust driver or
slow down computer.
Adjustments
Standard configuration shows 7 adjustment pots, 4 of them are necessary for the user. The
small pots, which are placed inside the board, shoud not be changed in setting. These are
necessary for linearity and other galvo specific settings.
Basic adjustments
The MicroAmp comes already pre adjusted and needs to be set up for the galvo only in small
areas. Every galvo is different, so minor adjustments are needed. For this, the ILDA test
pattern is used, also a setup of the galvos in XY with a laser. If the driver is totally deadjusted,
this will be the procedure to retune it:
Size, Servo-Gain, Damping und HF-Damping are adjusted counter clockwise to their left
zero position. Now turn LFD 5 full rounds clockwise to right.
Connect computer with ILDA test pattern, run it at approx. 20kpps.
Power on the amplifiers.
Slowly open the servo gain (clockwise). The mirror of the galvo should move now to its
middle position. If yes, turn two rounds clockwise.
Slowly open the size until you see the galvo moving.
Increase servo gain until you see overshoots. Correct it with LFD.
Decrease undershoots by opening the HFD pot slightliy clockwise. Remove gain/LFD
procedure and correct with HFD, until you the ppicture looks satisfying.
Increase speed of test patterns and readjust for optimized picture.