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Entry  Mon Nov 23 10:58:46 2020, anchal, Notes, Laser, North laser not switching on, power supply display not working PXL_20201123_184931888.mp4
    Reply  Mon Nov 23 14:56:59 2020, Koji, Notes, Laser, North laser not switching on, power supply display not working 
       Reply  Mon Nov 30 10:28:08 2020, Anchal, Notes, Laser, North laser not switching on, power supply display not working image-ebd6ed74-fed3-4890-b45d-07d36e3b3000.jpg
          Reply  Mon Nov 30 21:31:56 2020, Koji, Notes, Laser, North laser not switching on, power supply display not working 
Message ID: 2599     Entry time: Mon Nov 30 10:28:08 2020     In reply to: 2595     Reply to this: 2600
Author: Anchal 
Type: Notes 
Category: Laser 
Subject: North laser not switching on, power supply display not working 

I shorted the interlock terminals on the North laser power supply and still as soon as I turn the key to 'ON' position, the south laser drops to standby mode and the north laser power supply display does not switch on with the status yellow led blinking asynchronously. I still do not understand why the two laser operations are coupled. South laser power supply does not share anything other than the power distribution board with the North power supply. Could it be that something in the north power supply has created a short circuit in the power drawing portion?


Is it worth it to fix this path?

As Koji suggested, I can use a spare LWE NPRO controller but do we want to put more resources and time into this experiment? We have acquired loads of measurements over 4 months in the quietest environment already. So I'm not sure if it is worth it.

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