40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
Entry  Mon Jan 6 15:36:55 2020, Jon, Update, PSL, Assembly underway for c1psl upgrade 
    Reply  Mon Jan 6 16:07:12 2020, gautam, Update, PSL, Assembly underway for c1psl upgrade 
       Reply  Mon Jan 6 19:05:09 2020, not gautam, Update, PSL, Assembly underway for c1psl upgrade 
    Reply  Fri Jan 10 19:48:46 2020, yehonathan, Update, PSL, Assembly underway for c1psl upgrade 20200110_194429.jpg20200110_194516_HDR.jpg
       Reply  Mon Jan 13 16:05:18 2020, yehonathan, Update, PSL, Assembly underway for c1psl upgrade 
          Reply  Tue Jan 14 17:16:43 2020, yehonathan, Update, PSL, Assembly underway for c1psl upgrade 
             Reply  Wed Jan 15 10:12:46 2020, gautam, Update, PSL, Assembly underway for c1psl upgrade 
                Reply  Wed Jan 15 16:08:40 2020, not gautam, Update, PSL, Assembly underway for c1psl upgrade 
Message ID: 15118     Entry time: Mon Jan 13 16:05:18 2020     In reply to: 15116     Reply to this: 15120
Author: yehonathan 
Type: Update 
Category: PSL 
Subject: Assembly underway for c1psl upgrade 

{Yehonathan, Jon}

I configured the Acromag channels according to the Slow Controls Wiki page.

We started testing the channels. Almost at the beginning we notice that the BIO channels are inverted. High voltage when 0. 0 Voltage when 1. We checked several things:

1. We checked the configuration of the BIOs in the windows machine but nothing pointed to the problem.

2. We isolated one of the BIOs from the DIN rail but the behavior persisted.

3. We checked that the voltages that go into the Acromags are correct.

The next step is to power up an isolated Acromag directly from the power supply. This will tell us if the problem is in the chassis or the EPICs DB.

ELOG V3.1.3-