MAUVE control system L Zwalinski L Davoine CERN

MAUVE control system L. Zwalinski, L. Davoine – CERN EP/DT/FS November 1 st, 2017 European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland MAUVE CO 2 cooling review - 2017 1

Control system architecture Data Server ready in CCC cs-ccr-dclhcb 4 cabinets Architecture: 3 cabinets: 1800 x 1200 x 400 1 cabinet: 1800 x 600 x 500 MAUVE CO 2 cooling review - 2017 2

DIP communication with DCS ■ Released the CPC-COMM Wizard with RP 1. 2. 0 and Win. CC OA CPC Component 6. 4. 0. by BE-ICS supporting: Ø Additional protocols: SNMP and DIP (in addition to existing BACnet, OPC UA, CMW, S 7 polling and Modbus polling). Ø Alarms on Word. Status and Analog. Status objects. Ø Value (message) conversion for Analog. Input and Analog. Status objects. Ø We can subscribe to DIP in UNICOS cooling application to display and archive detector temperatures in one common SCADA system. New tool creates data points in our SCADA application. PLC does not see this values. It can be used for monitoring and manual operation purposes. Ø Further development has been requested by EP-DT to BE-ICS to allow for bridge DIP values received from DCS to cooling PLC. MAUVE CO 2 cooling review - 2017 3

Control cabinets design Master - cabinet 1 Master control UT - cabinet 2 CO 2 plant + backup chiller Velo - cabinet 3 CO 2 plant + backup chiller VFD - cabinet 4 2 x CO 2 pumps Each cabinet will be equipped with its own local EMS button. MAUVE CO 2 cooling review - 2017 4

Control cabinets design Master - cabinet 1 UT - cabinet 2 Velo - cabinet 3 Power distribution and redundant hot swappable 24 V DC PS PLC and distributed I/Os Power handling (heaters, compressor, etc. ) Signal handling and analog valve drivers equipped with battery pack for safety position FESTO pneumatics distribution and valve islands MAUVE CO 2 cooling review - 2017 5

Control cabinet design Power Distribution Discussed & agreed 6 months ago To be validated by EN/EL General Power EBD Backup by a Diesel if EBD lost ESD EXD Experiment Power Transfer switch Automatic UPS Master - cabinet 1 UT - cabinet 2 Velo - cabinet 3 MAUVE CO 2 cooling review - 2017 VFD - Cabinet 4 6

Electrical design Auto. CAD electrical design is on going. It is very much advanced. So far we have 57 pages for VELO & UT control/electrical cabinet. MAUVE CO 2 cooling review - 2017 7

Cable schedules ■ ■ Cable schedules both for internal plant cabling and JB & DB are ready with internal naming convention. The LHCb cable DB scheme is under preparation. We have well received template from Laurent. MAUVE CO 2 cooling review - 2017 8

Process break-down and operation modes Control software follows CERN UNICOS CPC 6 framework standard as all the other CO 2 cooling systems at CERN. Operation UT active, Velo passive UT passive, Velo active System has been demanded to run in nominal conditions = operation option mode: UT system is demanded to start in Operation Option Mode Velo system is demanded to start in Operation Option Mode Interconnection valves stay close System has been demanded to run in back-up scenario with UT plant providing CO 2 for both detectors: UT system is demanded to start in Active Option Mode Velo system is demanded to start in Passive Option Mode Interconnection valves will open System has been demanded to run in back-up scenario with Velo plant providing CO 2 for both detectors: UT system is demanded to start in Passive Option Mode Velo system is demanded to start in Active Option Mode Interconnection valves will open MAUVE CO 2 cooling review - 2017 9

Normal Operation MAUVE CO 2 cooling review - 2017 10

UT Active, Velo Passive MAUVE CO 2 cooling review - 2017 11

Normal Operation with Backup Chiller requested If primary chiller DI is OFF (positive logic) then backup chiller will be ON. DSS signal to be discussed with Olivier when Back. Up Chiller is ON. MAUVE CO 2 cooling review - 2017 12

Allowance table for CO 2 PCO The CO 2 system can change it’s operation mode only when system is stopped. In case of need to operate in active/passive scheme system shall be stopped and restarted in desired option mode. Option Mode Operation UT act Velo pas UT pas Velo act Operation x 0 0 UT act Velo pas 0 x 0 UT pas Velo act 0 0 x MAUVE CO 2 cooling review - 2017 13

User Interface panels ■ Work on interface panels has started MAUVE CO 2 cooling review - 2017 14

Alarms philosophy Damper electrical heater: Alarm level I – Temporary Stop Interlock - heater interlocked if T > 120 °C, restarted when T < 120 °C Alarm level II – Full Stop Interlock - heater interlocked if T > 140 °C, waiting for acknowledge * & T < 120 °C Alarm level III – Hardware Interlock (thermal switch) – all heaters interlocked (mechanically), waiting for acknowledge * & T < 120 °C & thermal switch OK Alarm levels: Alarm level I Warning Group Alarm level II Full Stop Group Membrane CO 2 liquid pump: Alarm level I – Temporary Stop Interlock - pump interlocked if membrane P > 5. 0 bar, restarted when P < 5 bar Alarm level II– Full Stop Interlock – pump interlocked if membrane P > 10 bar, waiting for acknowledge* & P < 5 bar MAUVE CO 2 cooling review - 2017 15

Alarms philosophy UT Alarm groups Main CO 2 Alarm groups Velo Alarm groups DSS interlock MAUVE CO 2 cooling review - 2017 16

CO 2 main plant – alarm groups Plant Full Stop Interlock: • • occurs if any of the Process Alarms triggered Main PCO is interlocked no automatic restart alarm indication (mail or/and SMS) Plant Warning: • • MAUVE CO 2 cooling review - 2017 occurs if any of the Process Alarms triggered alarm indication only (mail or/and SMS) 17

UT plant – alarm groups ALARM GROUPS: 1. Plant 2. Communication 3. Pump 4. Electrical heater 5. Pressure 6. Valve 7. Temperature 8. Sensors 9. Filters 10. Manifold MAUVE CO 2 cooling review - 2017 18

UT plant – alarm groups UT Warning: UT Full Stop Interlock: • • occurs if any of the Process Alarms triggered alarm indication only (mail • Bpix PCO is interlocked or/and SMS) • no automatic restart • alarm indication (mail or/and SMS) MAUVE CO 2 cooling review - 2017 19

Conclusions ■ ■ ■ ■ Control cabinets 3 D CATIA design completed. The electrical design is well progressing. Electrical components mostly selected. Material procurement starts now. FA under preparation. CCC SCADA server ready. SCADA UIs under construction. MAUVE CO 2 cooling review - 2017 20