Personnel Safety Systems Bryce Karnaghan

1. Personnel Safety Systems Bryce Karnaghan

2. Background • My history • 25 Years in control systems • Most experience on water, power and rail • Leaning about synchrotrons • Beamline PSS • Via booster and storage ring PSS

3. Requirements of a PSS • Protect personnel • Safety Integrity Level 3 • No single point of failure • Fail-safe • Other requirements • Separate system from controls and instrumentation system (EPICS) • Be able to transfer data to EPICS • Control personnel access when radiation hazards exist • Allow mtce access when radiation hazards removed

4. Meeting the requirements • Equipment • Uses safety rated PLC/relay system from Pilz

5. Meeting the requirements (cont) • Equipment (cont) • An intercom and video surveillance system at access points • Controlled access gates • Captive permit key • Blue lights in vaults when no access is not allowed • Illuminated signs, at appropriate locations within the facility • Emergency Stop buttons throughout the vaults • Ability to crash out of an access gate • Safety switches on doors as interlocks

6. Meeting the requirements (cont) • Three operation modes • Open Access Mode: • Allows unlimited and open entry to authorised personnel. • Both the radiation and electrical hazards are interlocked to be off.

7. Meeting the requirements (cont) • Three operation modes (cont) • Authorised Access Mode: • Allows limited and controlled entry to authorised personnel through controlled doors only. • The radiation hazards are interlocked to be off. • Electrical hazards may be on to allow specialised testing. • This access mode allows for the search / secure procedure of each zone and for limited / controlled procedural access. • In both cases access is allowed only to authorised personnel following a strict protocol.

8. Meeting the requirements (cont) • Three operation modes (cont) • No Access Mode: • Allows operation of the beam in the Linac Booster Area (zones 1, 2 and 3) and/or into the Storage Ring (zones 4, 5 and 6). • Radiation and electrical hazards exist and no personnel are allowed in the zone. • Must complete search before entering this mode

9. Implementation • External contract • Installed by Sage Automation in partnership with Pilz and Nielsen. • Meeting all requirements

10. Implementation (cont) • Equipment • Pilz safety rated PLC/relay system

11. Implementation (cont) • Equipment (cont) • Triple redundant CPUs • Safety bus • Inputs and outputs are dual channel • Certified software

12. Implementation (cont) • Equipment (cont) • Control desk located in the control room • Video feed from labyrinth doors • Intercoms to labyrinth doors • Master Reset • PMI (HMI) located in control desk

13. Implementation (cont) • Equipment (cont)

14. Implementation (cont) • PMI

15. Implementation (cont) • PMI (cont)

16. Progress • Linac, Booster, Storage Ring • Type testing of major systems (FAT) • Final functional requirements definition • Physical installation commence May

17. Beamline PSS • Storage ring PSS provides a failsafe contact indicating shutters can be opened • Beamline PSS's will be standalone systems • Will provide personnel safety in the Beamline hutch • Will utilise the search method for securing • Will be responsible for opening the shutters • Use Pilz safety rated equipment • Will be coded in house