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Problem: ShaneAO WFS Lenslet Stage Failure

Manifestation:

  • In Shane AO motor control GUI, Lenslet fails to achieve commanded position (e.g. attempts to move from 16x to 8x unsuccessful.

Solution/Recovery:

  • In Shane AO motor control GUI:
    • Repeat attempts to achieve commanded position.

Cause:

  • Low ambient temperatures ≤ 46 -- 44°F (7.7 -- 6.7°C) --- although one incident reported (2018-05-26) when ambient temperature circa 55°F.

Associated Issues:

Change Log:

2018-05-26: Updated.
2017-12-03: Updated.
2017-01-17: Updated.
2017-01-14: First version.

This document last updated (UTC): Tuesday 04 March 2025