Friday, February 09, 2018, 08:25    Disconnected the AC power chain from the old bias supply but now cannot turn on the new bias supply in EPICS because the "TSGBIASSAFETY ok" interlock is tripped. No idea what this means - maybe it checks for AC power?

Friday, February 09, 2018, 08:48    Reconnected power to old bias supply, does not fix problem. Talked to Mike, he thinks it is PLC related, so will call Gelo later.

Friday, February 09, 2018, 11:38 TSGBIASSAFETY ok interlock problem seems to have solved itself, it now appears to be working fine. Will turn off power for now and continue tests on Tuesday. (note: turns out Mike told Dave about the problem and he solved it. No one knows what this interlock is for, but it used to be reset using the Global Reset button and now the RST button for the power supply should also reset it.)