1. Rack installation and local tests for the MEBT Chopper Rack
João Paulo Martins
Controls System Engineer
European Spallation Source ERIC

2. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

3. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

4. Motivation
MEBT Fast Chopper was the first MEBT system to be tested in Bilbao;
It is the best candidate for this first installation campaign:
Familiarization with the environment and the team involved;
Required paperwork;
Time constraints;
One rack for the entire control system, no inter-rack interfaces;

5. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

6. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

7. MEBT Chopper Control System
FEB
Tunnel
Timing Events
MicroTCA Crate
MicroTCA CPU
MicroTCA Event Receiver
Fine delay
Digital out
MEBT Fast Chopper
Pulser PS
Pulser PS
50 Ω
50 Ω
Local Protection PLC
Temperature sensors, cooling water sensors

8. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

9. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

10. MEBT Chopper Rack Component Naming Service 19” rack
FEB-040Row:CnPw-U-001
Network patch panel
FEB-040Row:NetW-CPP-0101
PLC
MEBT-010:Ctrl-PLC-012
MicroTCA crate
MEBT-010:Ctrl-MTCA-001
MicroTCA CPU
MEBT-010:Ctrl-CPU-001
MicroTCA EVR
MEBT-010:TS-EVR-001
Serial to Ethernet converter
MEBT-010:Ctrl-SEC-001 / 002
Fiber optics converter
MEBT-010:Ctrl-MediaC-001 / 002
Pulser Power Supply
MEBT-010:PwrC-PSChop-001N / 001P
MEBT Fast Chopper
MEBT-010:BMD-Chop-001
MEBT Fast Chopper Loads
MEBT-010:BMD-ChopLd-001 / 002
MEBT Chopper Dump
MEBT-010:BMD-ChDump-001

11. MEBT Chopper Rack Related documents
Power Distribution Unit: Modified version of the PDU that will be installed on the Magnets racks;
Chess document: ESS (for reference)
Rack power requirements: Up to 5 kW;
Chess document: ESS
Rack cooling requirements: 1.16 kW, temperature within 25º C +/- 1º C;
Chess document: ESS
Rack type: Requirement baseline Rack type U (ESS );
Chess document: ESS

12. Electrical drawings and cable database
MEBT Chopper Rack
Electrical drawings and cable database
PDU: Under development, to be released this week;
Electrical drawings: Under development by WP3 team, based on the connection diagrams provided by ESS Bilbao; Will be necessary for the quality inspection;
Internal cables: Needs to be added to Cable Database for proper labelling and identification;
Long-run cables: Already in Cable Database and to be procured by the infrastructure team;

13. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

14. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

15. Activity Plan
Pre-installation activities: to be concluded before week 25;
Electrical drawings and connection diagrams;
Assembly and installation of the PDU;
Preparation of MicroTCA crate, including software installation;
Naming Service and CSEntry registration;
Virtual Machine creation for the PLC IOC;
Collection of remaining parts (power cords, network cables, etc..)

16. Activity Plan Rack installation plan: week 25
Reception of the ESS Bilbao rack with mounted equipment;
Transport of ESS Bilbao rack to Front-end Building;
Removal of the equipment from the “old” rack to the final one in FEB;
Connection of MicroTCA and PLC cables;
Connection to the Pulsers;
Internal verification;
Electrical Safety and Quality Inspection;
Power up;

17. Activity Plan Local tests activities: week 26
EPICS IOC for PLC: run the IOC on the Virtual Machine and check PVs status;
Local test of PLC signals: exercise some inputs on the PLC and verify response on EPICS IOC;
EPICS IOC for the Pulsers: run the IOC on the MicroTCA CPU and check PVs status;
Using the EVR in standalone mode (14 Hz events) check the fine delay outputs using oscilloscope;
Check the availability of the serial communication from MicroTCA CPU to the Pulsers;
Exercise some static parameters of the Pulsers and check readback value on EPICS;
HV output will not be tested, equipment will remain in “DISABLED” state;

18. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

19. Summary Motivation; MEBT Chopper Control System; MEBT Chopper Rack;
Activity Plan;
Next steps;

20. Next steps Preparation for the integrated tests;
Replacement of the serial converters to MOXA units;
Version 2 of the EPICS IOC wits standard EPICS modules (iocStats, caputlog, recsync);
Development of final Control Room interfaces (OPIs);
MEBT Chopper diagnostics: reading the voltage signals applied to the loads;
Integration with Machine Protection System and the FBIS (Fast Beam Interlock System);
Assessment of the MEBT Chopper rack installation;
Preparation and execution of a second campaign of rack installations;

21. MEBT Steerers Power Supplies
We will receive 20 of the 22 FAST PS units;
In principle they can be placed in the final racks, for storage;
ESS is purchasing support bars for all these units, since manufacturer recommends it;
This activity will be carried out if the support bars arrive in time and if there will be available time after the local tests of the Chopper rack;

22. Acknowledgement and questions
MUITO OBRIGADO! ESKERRIK ASKO!