Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Polarity Issues at the Inner Triplets and DFBXs

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Electrical Layout Drawing Inner Triplet

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Normal Position of the Connection Terminals  If a multipole corrector within the magnet assembly has its connection terminals facing downstream of Beam 1, and if the magnet's optical function changes (depending on the multipole order), then the terminals are re- labeled.

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Normal Position of the Connection Terminals  If an entire magnet assembly is be installed in the LHC tunnel turned by 180 deg. around the vertical axis, then the naming of the connection terminals A and B are not changed. If the magnet's optical function changes, then the polarity is changed on the warm side (magnet is marked with a star in the layout). * * *

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Magnet Polarities in the Insertion Regions ▼▼▼▼▼▼▼▼▼▼ ▲▲▲▲▲▲▲▲▲▲▲

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Polarity Error of MCOX,MCSSX (Everywhere) Fixed on the Patch Pannell, no impact on QPS (120 A)

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Connection Board at DFBX A A A A A A A BBB BB B B

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Connection Board at DFBX Polarity errors in MCSSX, MCOX in Q3 A A A A A A A B B B B B B B

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Connection Board at DFBX A A A A A A A B B B B B B B Read !

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Cable Crossing MQSX in DFB (Everywhere) Fixed on the Patch Pannell, but impact on the QPS, mended at sotware interface Interface to QPS on Proximity Equipment

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Pin out 120 A Connectors (Everywhere) Fixed in Connector on the Proximity Equipment side

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 MCSX Polarity (only in DFBXG (8L) Fixed at Patch Pannell no impact on QPS, Vtap Routing corrected in Connector

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Everywhere  Main circuit RQX: inversion of the current lead indices (EDMS ) with respect to the LHC reference DB Electrical Layout Assembly in tunnel

Stephan Russenschuck, CERN AT/MEL, 1211 Geneva 23 Inversion of Lead Indices RQX (Everywhere) Fixed at Patch Pannell