[Hallb-solenoid] clarification comparator procedures for interlock cheout list

Pablo Campero campero at jlab.org
Wed Oct 5 16:18:25 EDT 2016


Hello Nick, 

We need some clarifications on the interlock checkout procedure: 

1.for the tasks in page 14 called "software quench 1st threshold Controlled ramp down" and the following comparator tests; the procedure says "Disable the PLC QD fast ramp down by temporarily raising the thresholds to 250 mV"; under that for each comparator procedure it says " Verify the Fast Ramp Down was initiate" Should it be Verify the controlled Ramp Down was initiate? 

2. On page 16 for comparator 7,8,9 and 10 there is a step added (Verify the dump contactor open) that is not in the procedure for the comparator 1 through 6. Should this extra step be skipped? 

Please let us know about this clarifications, as they are preventing the completion of this tasks , thanks. 

Pablo Campero 

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