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

[Brian Eng]

Regarding the Cryocons we actually reversed the logic instead of disabling them. Normally the relay is on when it below the value, but we are currently doing the opposite (on when above).

However, for Cryocon #3, while it is in the control loop there doesn't seem to be a temperature value associated with it (i.e. the 8.5 & 10K Pablo mentioned), so either we need to decide on a temperature or it needs to be removed from the wiring since it is currently in series with Cryocon #2.

The SOE channels are the following:

Lead Temps = Cryocon 1: TR8622A + TR8622B
Cryocon 1 = Cryocon 2: TR8624A + Cryocon 3: TP8622A
Cryocon 2 = Cryocon 2: TR8624B + Cryocon 3: TP8622B

----- Original Message -----
> From: "Ruben Fair" <rfair at jlab.org>
> To: "Pablo Campero" <campero at jlab.org>
> Cc: "dsg-hallb magnets" <dsg-hallb_magnets at jlab.org>
> Sent: Monday, August 21, 2017 6:15:29 PM
> Subject: Re: [Dsg-hallb_magnets] Solenoid - Sequence of pre-power up I and C	checks

> Thank you very much for the update Pablo.
> 
> Have a good evening
> 
> Regards
> 
> Ruben
> 
> On Aug 21, 2017, at 5:59 PM, Pablo Campero < campero at jlab.org > wrote:
> 
> 
> 
> 
> Hello Ruben,
> 
> This afternoon was completed three interlock checks:
> 
> 1. Watchdog fail (Hardware)
> 2. Supply Current lead water flow
> 3. Return Current lead water flow
> 
> So far all of them are worked without any problem.
> 
> 
> To proceed with the full test and clear all the fault/interlocks trips was
> required:
> 
> 1. Add a jumper for the Quench Detection #1 (channel 1 and 2 tripped at this
> time). Wire jumper connected at the SOE relay terminal block.
> 2. Disable relay outputs for in cryocon 1 and cryocon 2. (Actual configured
> thresholds are: 8.5 and 10 K )
> 3. Turn on current lead water flows (Return and supply).
> 4. Turn on liquid levels hardware controllers for Lead and Magnet reservoir.
> 5. Verify wiring connection for the PSU (connected only Control power 110 V
> external power supply).
> 
> 
> After completed with the mentioned checkouts the PSU was turned off (pushed
> E-bottom), liquid levels hardware controllers was turned off, and also the s
> upply water valve for the current leads was closed.
> It will be need to turn on and enable all of them tomorrow to clear out all
> faults and continue with the test.
> 
> 
> Pablo