[Dsg-hallb_magnets] [New Comment] Solenoid fast dump at 2416 A

[campero at jlab.org]

Comments:
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 - by campero on Sat, 09/29/2018 - 14:36.

Solenoid Fast DAQ data - It seems like QD#1 channel 1 upper went first after it exceded its threshold of 200 [mV].
Attached is the screenshot of the FastDAQ data - voltage signals on the QD#1 channel 1-4 before Solenoid tripped at 2416 A.
-J(Removing Jitter) - S (Forcing sync) -D (duplicate timestamp correction) option used to get FastDAQ plots.
No changes made for the Solenoid control systems during this trip. As requested by Probir PLC, QDs and MPS were reseted to enable the next Solenoid ramp up.  
Cryogenics auto recovering seems to be stable, at this time (2:36 PM) the T average for coils ~ 6.28 K and  Magenet reservoir its being fill with helium LL8670 ~ 21%. 

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Logentry Text:
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Solenoid fast dump at 2416 A at 08:56:55 ,  the SOE PLC timestamps shows that it was initiated by QD#1.
Attached find PLC sequence of events and timestamps.

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