[dsg-hdice] NMR power supply synchronization

[Amanda Hoebel]

Hi Xiangdong,

As mentioned in the lab, the malfunction might have occurred from not power-cycling all instrumentation after the isolation transformer box had been removed. Taking the box out of the rack required the removal of several cables from some of the instrumentation, which could have caused a communication failure. If anything is taken from the rack it is probably best to power-cycle everything together to avoid program failure. 

The program seems to be working now. If the problem persists, let me know and I will take a look at it again.

Regards,
Amanda

----- Original Message -----
From: "Xiangdong Wei" <xwei at jlab.org>
To: "Amanda Hoebel" <amandah at jlab.org>
Cc: dsg-hdice at jlab.org
Sent: Tuesday, August 22, 2017 5:24:15 PM
Subject: Re: [dsg-hdice] NMR power supply synchronization

Amanda, 

I tried to restart the Rack 2 test with PD1 this afternoon after cooling down the dewar over the weekend. The test run could not be carried out because the VI, especially the field plot malfunctioned: The VI failed to set the correct power supply parameters correctly, causing the ramping stopped at the low end of the sweeping window (Please see attached pictures). This happened in the past and was fixed. Please take a look. I'll be in HDice lab at 10:10am, after finishing an analysis meeting. 

Thanks, 

Xiangdong 



Xiangdong Wei 

x-5266