WP 11989

With HAM6 and HAM7 vented, the Fast Shutter, OMC PZT, PSAM and HAM7 Piezo were powered on. Both high voltage interlock chassis are bypassed from the vacuum interlock system. Shortening plugs were installed to enable the power supplies to turn on. This will need to be removed before pump down. WP will be left open.

The fast shutter chassis in ISC-R3 is powered on but the enable HV switch needs to be toggled up. See attached picture.