[Dsg-hallb_magnets] Differences between versions of Page 21 for Pre-Power-up Interlock Checkout procedure P027

[Amrit Yegneswaran]

thanks for the reply. 
let us know when schedule the meeting. 



From: "Probir Ghoshal" <ghoshal at jlab.org> 
To: "Amrit Yegneswaran" <yeg at jlab.org> 
Cc: "dsg-hallb magnets" <dsg-hallb_magnets at jlab.org> 
Sent: Thursday, October 27, 2016 8:16:43 AM 
Subject: Re: [Dsg-hallb_magnets] Differences between versions of Page 21 for Pre-Power-up Interlock Checkout procedure P027 

Hi Amrit, 

Appreciate your thoughts. 
It will be good if we all can sit down and understand the logic..! 
Suggest to set up a meeting with folks at counting house Hall-B so that we all can share our concerns and thoughts. 

regards 
probir 
----- Original Message ----- 
From: "Amrit Yegneswaran" <yeg at jlab.org> 
To: "dsg-hallb magnets" <dsg-hallb_magnets at jlab.org> 
Sent: Wednesday, October 26, 2016 5:26:49 PM 
Subject: Re: [Dsg-hallb_magnets] Differences between versions of Page 21 for Pre-Power-up Interlock Checkout procedure P027 

tyler pablo, and amanda 
appears 2nd v16 in 9/30 ver. shld be v18, (prhps typo!) 
v16 in both versions appears to be the same. 
good question: why v13, v14, v15, v17 left out? 



From: "Tyler Lemon" <tlemon at jlab.org> 
To: "dsg-hallb magnets" <dsg-hallb_magnets at jlab.org> 
Sent: Wednesday, October 26, 2016 5:04:52 PM 
Subject: [Dsg-hallb_magnets] Differences between versions of Page 21 for Pre-Power-up Interlock Checkout procedure P027 

Hello, 

Amanda, Pablo, and I were monitoring the Torus EPICS screens for the Voltage Tap Calculation. A screen shot of this screen is attached. We were referring to the Interlock Checkout Procedure P027 for what calculations were done for the comparators on this screen. We noted that there are some comparator formulas that do not appear in the most recent P027 from 10/03/2016 that were in the version of P027 from 09/30/2016. Attached are the page 21's from each version of P027 with the comparator formulas highlighted in green that do not appear in both versions. Are these comparator formulas left out of the 10/03/2016 version on purpose? The EPICS screens shows that these are still in use on the Voltage Tap Calculations screen. 

We also noted that the definition for V16 is different in each version. This is highlighted in yellow on the attached PDF. Which is the correct definition? 

Best regards, 
Tyler 

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