[Dsg-hallb_magnets] Solenoid - Sequence of pre-power up I and C checks

[Brian Eng]

Ruben,

Pablo and I just went through the interlock checkout and I don't think there's any we can start early with.

We either need the MPS to be operational (in order to have some current or to close the fast dump contactor) or to have all the interlocks cleared as the first step.

Unless we change the procedure to not require all the interlocks to be cleared at the very least we'll have to wait for DC power to finish their MPS work before starting.

> On Aug 17, 2017, at 9:34 AM, Pablo Campero <campero at jlab.org> wrote:
> 
> Hello Ruben,
> 
> Brian and I will start with the  Pre-Power Up checks today.
> To complete with the full test for most of the 'Fast Dump- Hardware Interlock' checkouts is required to turn on the PSU to verified correct function of the dump switch and remote resets on the PSU.
> Will someone will be available to turn on the PSU after the replacement of the connector in the remote crate and re-tune of the QD units? 
> 
> Best Regards,
> Pablo  
> 
> From: "Ruben Fair" <rfair at jlab.org>
> To: "Onish Kumar" <okumar at jlab.org>, "Probir Ghoshal" <ghoshal at jlab.org>, "Pablo Campero Rojas" <campero at jlab.org>, "Brian Eng" <beng at jlab.org>, "Nicholas Sandoval" <sandoval at jlab.org>
> Cc: "George Biallas" <biallas at jlab.org>, "Scot Spiegel" <spiegel at jlab.org>
> Sent: Thursday, August 17, 2017 7:40:46 AM
> Subject: Solenoid - Sequence of pre-power up I and C checks
> 
> Gentlemen,
> 
> Some of the I and C checks for pre-power up will have to be carried out in sequence (e.g. anything to do with the QD units):
> 
> 1. Replace connector on PSU remote control crate + complete both PSU check sheets - Onish (to be completed by Friday 18th Aug)
> 2. Re-tune QD units - Probir (by Thursday 24th Aug) - as Probir is out Mon-Wed next week)
> 3. Checks (including interlock checks) on QD units (by Friday 25th Aug) - Pablo/Brian/Nick - though of course you can make a start on the other checks
> 
> As our cooling rate has increased (we are presently cooling at about 10 K/day), we won't have as much time as we initially thought so we should start as soon as possible.
> 
> Regards
> 
> Ruben