1. Linac 4 Devices Controls and Monitoring Status
A. Masi
Contents
3 MeV Test Stand Controls status
Linac 4 devices controls and monitoring status
Linac 4 control system solutions
Beam Stopper control system
Dump control system
LBS Slit control system

2. Device Status Foreseen deadline
1–Control systems status for devices in Linac 4 Test Stand Building 152
Device
Status
Foreseen deadline
Beam Stopper for test Stand + Beam stopper with hole (Iris) for test stand
Control system commissioned and operational
Fesa Class running
Expert Java interface to be developed
November 2012

3. 2–Linac 4 devices controls and monitoring status
Foreseen deadline
N.2 Beam Stopper for Linac 4
(L4L.TDI.1187
L4L.TDI.1188)
Modification test stand electronic chassis
Cables are being installed
Low level software to be modified
2013
Main Dump
Functional Specifications are being finalized
May 2013
L4T Stopper
(L4T.TDISA.0740)
Functional Specifications to be finalized
April 2014
LBE and LBS Dump
September 2013
LBS Slit

4. 3–Linac 4 devices control systems
Electronics
Interlocks
Alarms
Access System
Comments
N.2 Beam Stopper for Linac 4
(L4L.TDI.1187
L4L.TDI.1188)
PLC and FESA Class to Control:
1 electro-van
1 HV power supply
Acquire:
6 switches
1 air pressure sensor √
Basically same system as the 3 MeV test bench
L4T Stopper
(L4T.TDISA.0740)
without HV power supply
Main Dump
PLC and FESA Class to Acquire:
2 thermocouples
4 infrared sensors
2 PT 100 for water
2 water flow meters
2 water pressure sensors
LBE and LBS Dump
LBS Slit
Same control system as Linac 2-3
No news

5. 4–Linac 4 Beam Stopper Control System Architecture

6. 4–Linac 4 Test Stand Beam Stopper Control System
Beam Stopper + Iris control system successfully installed and commissioned end of July 2012

7. 4–Linac 4 Test Stand Beam Stopper Control System
Iris Movement Command
Switches Status acquisition
3 MeV Test Stand Iris FESA Class

8. 5–Linac 4 Dump Control System

9. 5–Linac 4 Dump Control System
By C. Maglioni

10. 5–Linac 4 Dump Control System
All measurements but FS may fall into the following classification:
Acceptable (A): the reading is nominal or within the pre-established acceptable ranges
Non-acceptable (NA): the reading is out of the acceptable ranges
No-reading (NR): indicate the absence of signal
Flow Switch FS is only 0=off / 1=on
Flow reading is the driving parameter above all (AF and FS)
AF and FS are used in parallel as redundancy and sort of crosscheck. They are supposed to “agree”. If not  DT and Dp become the driving parameters but one of both AF and FS has to be repaired
The no-reading signal (NR) is indicative of an instrumentation issue  intervention may have or have to be done (depending on which is the instrument affected) to fix it

11. 5–Linac 4 Dump Control System
By C. Maglioni

12. 6–Linac 4 LBS Slit Control System
Left-Right

13. 6–Linac 4 LBS Slit Control System

14. 6–Linac 4 LBS Slit Control System

15. The FESA Class One Axis Slit: SteppingAxis
6–Linac 4 LBS Slit Control System
The FESA Class One Axis Slit: SteppingAxis

16. Conclusions and Outlooks
Device
Status
Foreseen deadline
N.2 Beam Stopper for Linac 4
(L4L.TDI.1187
L4L.TDI.1188)
Modification test stand electronic chassis
Cables are being installed
Low level software to be modified
2013
Main Dump
Functional Specifications are being finalized
May 2013
L4T Stopper
(L4T.TDISA.0740)
Functional Specifications to be finalized
April 2014
LBE and LBS Dump
September 2013
LBS Slit