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SHARCS Problem: Ion Pump Shut Down
Manifestation:
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ShARCS ion pump control () reports HV power Off.
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ShARCS ion pump trips Off after short period of operation.
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In response to following command:
user@covert > gshow -s sharcspump -date "48 hours ago" PRESSURE HVPOWER
HVPOWER = Off
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Ion pump controller (mounted external to ShaneAO) displays message:Sd0 and all other indicators are off.
Solution/Recovery (Temporary):
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Power-cycle ion pump controller (multiple times, if necessary):
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Visit ion pump controller (mounted external to ShaneAO).
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For completeness, press HV button to disable High voltage supply.
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Throw rocker switch on unit to power OFF position for 30 seconds.
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Throw rocker switch on unit to power ON position.
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Wait a few seconds for power-up sequence to complete.
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When stable after power-up, press and hold HV button for 2 seconds.
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Stand-by for circa 5 minutes to observe beaviour and verify stability.
Solution/Recovery:
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HV cable: Inspect, examine, repair/replace.
Cause:
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Faulty High Voltage cable / BNC connector.
Associated Issues:
Change Log:
- 2017-05-10: First version.
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