[Dsg-hallb_magnets] Solenoid fast discharge this morning at 1150 Hrs

[Renuka Rajput-Ghoshal]

I do not see any harm in increasing it to 200mV in hard-wired QD.

Thanks
Renuka


----- Original Message -----
From: "Probir Ghoshal" <ghoshal at jlab.org>
To: "dsg-hallb magnets" <dsg-hallb_magnets at jlab.org>, "Nick Sandoval" <sandoval at jlab.org>, "Renuka Rajput-Ghoshal" <renuka at jlab.org>
Cc: "rfair" <rfair at jlab.org>, "Denny Insley" <dinsley at jlab.org>, "Dave Kashy" <kashy at jlab.org>
Sent: Monday, September 10, 2018 1:30:58 PM
Subject: Solenoid fast discharge this morning at 1150 Hrs

Dear all,

We are still in the process of analyzing the data from this morning fast discharge. This points out first hand to VT19 (one of VCL).
This has been the between the VT1 and VT19 all the time.

The Hard ware QD threshold s are set to 100 mV.
I am going to change this to 200 mV on both the channels on hard-wire QD.
Still will keep the PLC to 100 mV as threshold and will make this the primary quench protection for VCL's.

Please let me know and acknowledge the same.
Regards

Probir