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Entry  Thu Feb 10 21:51:02 2022, Koji, Update, CDS, [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW Screenshot_2022-02-10_21-46-02.pngScreen_Shot_2022-02-10_at_21.54.21.pngScreen_Shot_2022-02-10_at_22.14.23.png
    Reply  Fri Feb 11 10:56:38 2022, Anchal, Update, CDS, [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW 
       Reply  Fri Feb 11 12:22:19 2022, rana, Update, CDS, [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW 
          Reply  Fri Feb 11 17:07:19 2022, Anchal, Update, CDS, [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW 
Message ID: 16663     Entry time: Thu Feb 10 21:51:02 2022     Reply to this: 16664
Author: Koji 
Type: Update 
Category: CDS 
Subject: [Solved] Huge random numbers flowing into ETMX/ETMY ASC PIT/YAW 

Huge random numbers are flowing into ETMX/ETMY ASC PIT/YAW. Because of this, I could not damp the ETMX/ETMY suspension at the beginning during the recovery from rebooting. (Attachment 1)
By turning off the output of the ASC filters, the mirrors were successfully damped.

Looking at the FE model view of the end RTSs, there were two possibilities: (Attachment 2)

- They are coming from RFM connection
- They are coming from ASXASY

ASX/ASY are not active and I could not see anything producing these numbers. Burtrestore didn't help.

The possibility was something at the other side of the RFM, or corruption of the RFM signal.

- Looking at the RFM model (Attachment 3), the ASC signals are coming from ASS and IOO. The ASS path has the filter module (C1:RFM-ETMX_PIT and etc). This FM is quiet and not guilty.

- Why do we have the RFM from IOO? I went to IOO and found the new ASC (WFS) model is there. I didn't realize the presence of this model. In fact ASC screen showed that these random numbers are flowing into the end SUSs.
So I did burtrestore of c1iooepics. Alas! they are gone.

Now I can go home.

Attachment 1: Screenshot_2022-02-10_21-46-02.png  508 kB  | Hide | Hide all | Show all
Screenshot_2022-02-10_21-46-02.png
Attachment 2: Screen_Shot_2022-02-10_at_21.54.21.png  170 kB  | Hide | Hide all | Show all
Screen_Shot_2022-02-10_at_21.54.21.png
Attachment 3: Screen_Shot_2022-02-10_at_22.14.23.png  246 kB  | Show | Hide all | Show all
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