Transcript DCS and Motors - Indico

DCS and Motors
Helen Heath, David Cussans, Magnus
Loutit
University of Bristol
DCS
• Draft Document introduced at last meeting.
– No comments received
Short Term Decisions from last
meeting
•
Laying cable from tunnel to control room

•
Gilles Marie informed of cable choice.
Rack J01 has been allocated in PC farm on
surface. Will also have interlock for limitswitches.
Decisions & Tasks from last meeting
•
Architecture of control system decided.
•
Space allocated in “upstairs” rack.
•
Gilles Marie informed about choice of cables and locations.
•
Need to liaise with CERN beams/targets group for specification of
PLC and interface boards (Piotr Golonka)_
•
Install PLC and connect cables.
•
Specify obtain and fix ATEX diaphragm motor
•
Design/install end-limit interlock
•
Modify PLC code to interface to NA62 DCS
•
Integrate motor control into DCS user interface
Motor controls
• Work of Magnus Loutit
– Preliminary drawings available for the control of
the existing motors (attached to this presentation)
• 1A (X), 1B (Y), 1C(Diaphragm)
– Bill of materials being compiled
Note about Diaphragm Motor
•
May not be possible to find a24V-DC ATEX-2
rated motor.
•
•
Most low voltage motors have brushes,
which spark, so aren't suitable for
potentially explosive environments.
The fall-back solution if we can't find a
suitable motor in time is put a temporary box
near the CEDAR containing a relay and a 240V->24V power supply.