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Fri Jun 2 12:32:16 2017, gautam, Update, General, Power glitch
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Fri Jun 2 16:02:34 2017, gautam, Update, General, Power glitch
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Fri Jun 2 22:01:52 2017, gautam, Update, General, Power glitch - recovery   
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Sun Jun 4 15:59:50 2017, gautam, Update, General, Power glitch - recovery
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Message ID: 13038
Entry time: Sun Jun 4 15:59:50 2017
In reply to: 13036
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Author: |
gautam |
Type: |
Update |
Category: |
General |
Subject: |
Power glitch - recovery |
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I think the CDS status is back to normal.
- Bit 2 of the C1RFM status word was red, indicating something was wrong with "GE FANUC RFM Card 0".
- You would think the RFM errors occur in pairs, in C1RFM and in some other model - but in this case, the only red light was on c1rfm.
- While trying to re-align the IFO, I noticed that the TRY time series flatlined at 0 even though I could see flashes on the TRANSMON camera.
- Quick trip to the Y-End with an oscilloscope confirmed that there was nothing wrong with the PD.
- I crawled through some elogs, but didn't really find any instructions on how to fix this problem - the couple of references I did find to similar problems reported red indicator lights occurring in pairs on two or more models, and the problem was then fixed by restarting said models.
- So on a hunch, I restarted all models on c1iscey (no hard or soft reboot of the FE was required)
- This fixed the problem
- I also had to start the monit process manually on some of the FEs like c1sus.
Now IFO work like fixing ASS can continue... |
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