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  Fri Aug 7 18:06:24 2009, rob, Omnistructure, VAC, opening V1 when PTP1 is broken 
    Reply  Fri Aug 7 19:55:08 2009, steve, Summary, VAC, opening V1 when PTP1 is broken 
Message ID: 1863     Entry time: Fri Aug 7 18:06:24 2009     Reply to this: 1865
Author: rob 
Type: Omnistructure 
Category: VAC 
Subject: opening V1 when PTP1 is broken 

We've had a devil of a time getting V1 to open, due to the Interlock code. 

 

The short story is that if C1:Vac-PTP1_pressure > 1.0, the interlock code won't let you push the button to open V1 (but it won't close V1). 

 

PTP1 is broken, so the interlock was frustrating us.   It's been broken for a while, but this hasn't bitten us till now.

 

We tried swapping out the controller for PTP1 with one of Bob's from the Bake lab, but it didn't work. 

 

It said "NO COMM" in the C1:Vac-PTP1_status, so I figured it wouldn't update if we just used tdswrite to change C1:Vac-PTP1_pressure to 0.0.  This actually worked, and V1 is now open.  This is a temporary fix.

ELOG V3.1.3-