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K-Cube Position Aligner
For use with pi ezo K-Cubes, select ‘
PositionAligner Hub and SMA
’ to use the
internal comms lines or ‘
PositionAligner SMA Only
’ to use just the external SMA
connectors - see Section 5.3.3. for more details.
Open Loop Position Outputs
- This parameter sets the value of the drive signal from the
XDiff and YDiff connectors when the unit is switched to from closed loop to open loop
mode.
If set to Last Closed Loop value, the outputs are fixed at the values present when the
unit is switched to open loop.
If set to Zero, the output is set to zero (0V).
Device Display Settings
In certain applications, it may be necessary to adjust the brightness of the LED display
on the top of the unit. The brightness is set in the
Display Intensity
parameter, as a
value from 0 (Off) to 100 (brightest). The display can be turned off completely by
entering a setting of zero, however, pressing the MENU button on the top panel will
temporarily illuminate the display at its lowest brightness setting to allow adjustments.
When the display returns to its default position display mode, it will turn off again.
Furthermore, 'Burn In' of the display can occur if it remains static for a long time. To
prevent this, the display is automatically dimmed after the time interval specified in the
Display Timeout
parameter has elapsed. The time interval is specified in minutes in
the range 1 to 480. The dim level is set in the
Dimmed Intensity
parameter, as a
percentage of full b rightness from 0 (Off) to 10 (brightest) but is also limited by the
Display Intensity
parameter if this is lower. These settings are only visible and active
if the
Dim device display on inactivity
box is checked.
UI Settings
As previously described, the difference signals indicate the beam position on the detector
in the X and Y axes. The SUM signal can be used to 'normalize' the difference signals in
relation to beam power - see Section 4.2.3. for more details.
Click the
‘Normalise X, Y Difference Signals to Sum Signal
’ checkbox if normalization
is required
Click the
Display Labels
checkbox to show captions on the axes of the GUI graphical
display.
If the
Overlay display with Sum Mask
checkbox is checked, the areas of the display
where the sum signal is out of limits are shaded pink. This gives a visual indication of
when the system is near its limits of travel.
To save the s ettings to hardware, check the 'Persist Settings to Hardware' checkbox
before clicking the 'OK button.
