ITMX and ITMY both tripped in the last few minutes. Jim is recovereing. Phil and Aaron are pulling cables, these might be a good example of times when overly sensitive watchdogs make it difficult to commision while there is normal install activity in the LVEA.
sheila.dwyer@LIGO.ORG - 12:07, Thursday 10 April 2014 (11267)
GS13 and L4Cs in low gain mode, all blends on Start, raise T240 watchdog threshold, Sensor correction off.
After we heard that Fil and Aaron are out of the LVEA I tried switching back to the good performance state, it trippped again while I was switching blends.
Why do these trip while switching blends? According to Rich that shouldn't happen, but it does. The second attached plot below is the actuator trip that happened while I was switching blends.
ITMX and ITMY both tripped in the last few minutes. Jim is recovereing. Phil and Aaron are pulling cables, these might be a good example of times when overly sensitive watchdogs make it difficult to commision while there is normal install activity in the LVEA.
Jim, Rich, Sheila,
several more trips, BS, both ITMs.
Rich and I tried to put ITMX into a safe state:
GS13 and L4Cs in low gain mode, all blends on Start, raise T240 watchdog threshold, Sensor correction off.
After we heard that Fil and Aaron are out of the LVEA I tried switching back to the good performance state, it trippped again while I was switching blends.
Why do these trip while switching blends? According to Rich that shouldn't happen, but it does. The second attached plot below is the actuator trip that happened while I was switching blends.