1. EN/EL Tests in H4IRRAD - 2011 18 October to 7 November
H4IRRAD External Area
Method:
individual interviews with group leaders based on the April schedule -> to gather bottom-up data,
EN retreat on 1st July -> the aim was to bring the MTP in line with the last schedule & saving requests from the Council in June
ENMB on 26th July -> validate with group leaders the top-down arbitration
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)
Georges Burdet, Matija Zanko (EL/CO)

2. Equipment Tested Tests Procedures Tests Results
EL/EL Tests in H4IRRAD
Equipment Tested
Power Equipment as used in LHC Underground
PLC Components as used in LHC Surface
Tests Procedures
Tests Results
Later: cross-section calculation with EN/STI
Extrapolation to LHC conditions in US/UJ/RE
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

3. Low Voltage circuit breakers
400V Circuit breakers with electronic protection
2 breakers SCHNEIDER NS + STR22SE electronic protection
Previous generation
Installed in LCH underground
3 breakers SCHNEIDER NSX + Micrologic electronic protection
New generation
Installed for QPS powering renovation and planned for future projects
Goal is to check the electronic module, not the breaker itself
Tests tripping conditions
Close at No load condition
Set Load at 90% of tripping level, wait 1 mn
Set Load at 250%
Wait for tripping and record Time to Trip
Set Load back to 90%
Reset and Reclose Breaker
Wait 1 min
Check no trip
In the 200 cycles performed by each breaker, no failure detected
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

4. Battery charger Ackerman 48VDC battery charger
Model 80A
Provide auxiliary source for most of the EL equipment
AUG system
Protection Relays (MT & BT)
Command Circuits, interlocks, etc.
Exit Lighting system
Supervision system (IED, DAU, RTU)
Tests Conditions
Load set to 25A
Set to Float Mode, output goes to 48VDC
Set to Boost Mode, output goes to 53VDC
Suppress Mains, battery discharges
Restore Mains, goes to boost with current limited at 80A
Set back to Float
Performed about 270 cycles, no failure detected
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

5. SCHNEIDER PREMIUM & TWIDO PLC
Used in surface, verify if usable in underground areas
Power Supply 48VDC module (TSX PSY 5520)
CPU (TSX P57 204, Program in Flash)
32 Input (TSX DEY 32D3K) and 8 Output modules (TSX DSY 08R5A)
Serial Communication module (TSX SCY 21601)
Serial Communication daughter boards (TSX SCP114)
TWIDO compact PLC (TWD LMDA20DRT)
Tests
Applications within PREMIUM & TWIDO cycle outputs
Outputs wired to inputs
Applications reads back inputs
Supervision, via communication, collects outputs & inputs images
Automatic Power Cycle to wake up in case communication is lost
Many problems occurred, see details
JM Concept conversion modules (TELIS 9000U1)
Analogue signal (ramp) sent to the 4 JM Concept modules
Converted data collected by communication
Some losses of communication, otherwise conversion is ok
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

6. Circuit Breakers Tests Results
Equipment
Number of
Sequences
Problems
SCHNEIDER NS Breaker
+ STR22 SE electronic protection
200
SCHNEIDER NSX Breaker
+ Micrologic electronic protection
Ackerman Battery Charger
267
PREMIUM PLC
Continuously tested 69
TWIDO PLC 17
JM Concept modules 1
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

7. Circuit Breakers Tests Results: Time to Trip
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

8. PLC Premium Events Note 1: PLC Watchdog failed on 2nd Nov. around 3h
Description
Action
Result
Quantity
Watchdog
Activated
CPU in STOP mode
(no data changes)
Many attempts with Power Cycle
CPU finally went to RUN mode
(once after 4 days!) 5
and
Communication
failure
Note 1
Access to HW (4 Nov.)
Found CPU in HALT
Did a CPU RESET
Brought PLC in normal state 1
Both comm. channels failed
While CPU Watchdog was activated.
Automatic
Power Cycle
Communication restored
With CPU in STOP mode 49
With CPU in RUN mode
(Watchdog was ok)
Integrated comm. card failure.
Watchdog activated.
But CPU in STOP mode
Additional comm. card failure. 6
Note 1:
PLC Watchdog failed on 2nd Nov. around 3h
was found in HALT during access on 4th Nov., set to RUN around 12h
Failed again on 5th Nov., around 7h
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

9. TWIDO PLC Events H4IRRAD EN/EL 2011
Description
Action
Result
Quantity
“Watchdog” failure
Output Q7 not activated,
CPU in STOP
Power Cycle
CPU went to RUN mode (data changes)
Occasional loss of communication. 15
Communication failure
Communication Unstable.
Occurred while “Watchdog” was activated. 2
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

10. H4IRRAD: Beam activity H4IRRAD EN/EL 2011
RadMon references
SIMA.887.H4RAD01:SEU_COUNT (external, EN/ICE PLC + GTO)
SIMA.887.H4RAD02:SEU_COUNT (external, EN/EL TITAN)
SIMA.887.H4RAD05:SEU_COUNT (external, EN/EL Ackerman)
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

11. PREMIUM: Events correlated with Beam activity
- Red CPU watchdog activation
- yellow both communication channel failure
- dark blue integrated SCP114 communication failure
- Light blue additional SCP114 communication failure
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

12. TWIDO: Events correlated with Beam activity
- Red TWIDO process failure
- Yellow TWIDO communication failure
H4IRRAD EN/EL 2011
Georges Burdet, Matija Zanko (EL/CO)

13. Check conditions in US15 where TWIDO PLC are installed.
Next Steps
How to extrapolate H4IRRAD beam activity during this period to LHC nominal conditions in RE/US/UJ areas?
Check conditions in US15 where TWIDO PLC are installed.

14. Start Time
Event
Solution
End Time
Duration
19/10 14:14
Both SCP114
Manual power cycle
19/10 15:50
1:35:13
20/10 11:46
CPU failure
20/10 13:41
1:54:38
21/10 10:53
power cycle on 29/10/ :34:03
29/10 15:34
4:40:24
21/10 10:54
21/10 11:23
0:29:07
22/10 15:50
23/10 09:04
17:14:22
23/10 23:33
24/10 07:48
8:14:58
24/10 11:03
24/10 11:26
0:22:28
24/10 16:02
24/10 16:18
0:15:45
24/10 16:46
24/10 17:02
0:15:41
24/10 18:22
24/10 18:36
0:13:41
24/10 22:30
24/10 22:38
0:07:52
25/10 00:45
25/10 00:51
0:05:55
25/10 02:27
25/10 02:42
0:14:44
25/10 04:48
25/10 05:06
0:18:05
25/10 06:36
25/10 06:48
0:11:17
25/10 10:14
25/10 10:42
0:27:34
25/10 12:34
25/10 13:35
1:01:25
25/10 17:15
Automatic power cycle
0:00:22
25/10 17:51
0:00:25
25/10 21:33
0:00:23
27/10 15:46
27/10 21:02
27/10 21:03
0:00:33
27/10 21:46
Aux SCP114
27/10 21:54
0:07:51
27/10 22:29
0:00:29
27/10 22:54
27/10 22:55
28/10 01:23
0:00:26
28/10 13:11
28/10 13:12
28/10 13:40
28/10 13:41
28/10 19:12
28/10 19:13
28/10 19:31
0:00:21
29/10 12:57
0:00:34
29/10 15:33
29/10 20:28
power cycle on 29/10/ :34:18
29/10 20:34
0:06:13
29/10 20:28
Both SCP114
Automatic power cycle
29/10 20:29
0:00:31
29/10 20:33
29/10 20:34
0:00:23
29/10 21:03
CPU failure
power cycle on 02/11/ :58:12
02/11 02:58
5:54:18
29/10 21:04
0:00:26
29/10 21:35
30/10 01:53
0:00:27
30/10 02:11
30/10 02:12
0:00:38
30/10 02:18
Aux SCP114
30/10 02:35
0:16:31
30/10 02:34
Main SCP114 card
0:00:25
30/10 06:42
0:00:24
30/10 07:12
Manual power cycle
0:00:03
30/10 08:55
30/10 09:13
0:17:54
30/10 16:35
30/10 16:36
0:00:30
30/10 19:43
0:00:35
30/10 20:04
31/10 05:02
8:57:40
31/10 06:49
31/10 11:07
Unknown
0:00:12
31/10 17:50
01/11 03:47
0:00:21
01/11 11:42
0:00:07
01/11 14:30
0:00:29
01/11 21:14
01/11 21:24
0:10:02
01/11 21:25
01/11 22:15
0:00:33
02/11 02:04
02/11 02:05
02/11 02:48
0:09:27
02/11 02:57
03/11 02:58
0:01:00
02/11 03:08
Manual CPU reset
04/11 11:49
8:40:15
02/11 03:09
8:39:48
05/11 06:58
Unsolved
##########
05/11 06:59
0:00:22
05/11 14:16
0:00:32
05/11 15:03
0:00:00
05/11 16:30
05/11 16:31
06/11 11:22

15. The primary beam from the SPS is directed towards the T2 target (serving both H2 and the H4 line).
The corresponding TIMBER variable is XBH4.T2:TBIU_INTENSITY (measured in unit of 1011 protons).
The beam is extracted from the SPS with a slow extraction and the spill length is 9690 ms.
The secondary beam is then guided towards the EHN1 building, where the experimental areas are located; the H4IRRAD secondary target could receive a maximum of 109 proton/spill due to RP constraints.
The secondary beam intensity is measured via:
o   The coincidence counts between two scintillators: the variable is XBH4.XSCI :COINCIDENCE (unit are protons, saturating above few 106 protons/spill) so not reliable at these high intensities
o   The counts from an ionization chamber upstream the H4IRRAD target: the variable is XBH4.XION.408:COUNTS (units are counts)
Use a calibration factor of 6300 protons/ION count to know how many protons are impinging on the H4IRRAD target.
When running with a secondary beam intensity on the H4IRRAD target of 1.6*104 ION/spill which corresponds to ~1*108 protons/spill, is almost 1/10 of the nominal intensity.
The radiation field is monitored online via RadMon detectors, installed on different equipment:
SIMA.887.H4RAD01:SEU_COUNT (external, EN/ICE PLC + GTO)
SIMA.887.H4RAD02:SEU_COUNT (external, EN/EL TITAN)
SIMA.887.H4RAD03:SEU_COUNT (internal, TE/EPC ADCs)
SIMA.887.H4RAD04:SEU_COUNT (internal, EN/STI beam axis)
SIMA.887.H4RAD05:SEU_COUNT (external, EN/EL Ackerman)
Interpretation of the radiation field is responsibility of the H4IRRAD team. Refer to us for cumulated high energy hadrons and dose values.
We will provide a complete overview of the radiation levels at the end of the irradiation.
Marco and the H4IRRAD team