| ... | ... | @@ -25,7 +25,19 @@ To home tth from : m |
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- Set limit settings to ignore normally closed for both directions in: 
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- Close LabView
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## How to home KAP and KTH:
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- Start PI software
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- #Note that if an axis will not move, check soft limits
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- Check your limits:
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Set maximum allowed position to 100 (-100 in diffractometer coordinates, "User").
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Set minimum allowed position to -210 (210 in diffractometer coordinates, "User").
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Redefine TTH=0 in epics by scanning direct beam on d4 if beam is present.
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- First zero KAP (417005588) stage. Starting from a position where the sample is facing up, the limit is located around -44
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- To zero, open expanded view axis window and click on home with negative limit. When it reaches the limit, it will set the value to zero
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- Before homing KTH (417005589), move KAP to 44 which will move the sample back to facing vertical.
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- #Note: Watch the cooling braid during homing
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- Open expanded axis view window and reference using negative limit. Is located around outboard 10CF window (ie KTH ~ -40). At limit it will set KTH motor to 0.
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___
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| ... | ... | @@ -159,7 +171,7 @@ please use the SMCHydraDemo Program. |
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## Troubleshooting
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- switch from close loop adaptive to open loop
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- decrease velocity (for kth we used 1 instead of 1.5)
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- decrease velocity (for kth we used 1 instead of 1.5)
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- increase motor current; idealy, want to keep operating current under the following values:
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- in vacuum: 0.7-0.8A
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- in air: 1.2A<br>
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