Update PBPS calibration guide
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@ -15,4 +15,13 @@ The calibration procedure normalizes the response of the 4 diodes, then scans th
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Once completed (approx 1 minute) the plots are updated with the calibration response. Plotted on the x axis is the device motor position (horizontal - left plot and vertical - right plot) and on the y axis is plotted the normalized horizontal or vertical diode pair response. For a good setup the plot should be a straight line through the 3 data points.
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If you are happy with the calibration, press the "Push results/elog" button where the new calibration data is sent to the required data processing pipelines. After an automated restart (~30 seconds) both PV and BS position and intensity data will be calculated with the new calibration. An elog entry is made detailing the calibration data.
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If you are happy with the calibration, press the "Push results/elog" button where the new calibration data is sent to the required data processing pipelines. After an automated restart (~30 seconds) both PV and BS position and intensity data will be calculated with the new calibration. An elog entry is made detailing the calibration data.
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## Error
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**Soft limits**
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Error message: `ERROR: Motor position outside soft limits`
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Problem is a soft limit on either the device Motor X or Y is blocking the scan motion
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1. Select all from drop down menu for motor X and motor Y of PBPS GUI (shown below)
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2. Change motor soft limits to 1 and -1 for both motors
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3. Retry calibration
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<img src="https://docs.google.com/drawings/d/e/2PACX-1vSga-Zluo4b0isNs92C5MXfawMueNVk3ideRRDA_ZGQmD05Jn4noTS_pOl0OHiOyjS31OhLTAelFkYn/pub?w=728&h=686">
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