Create new blog entry for Point 8

---

Created by Main.BorisBellesia on 2007-05-14 - 20:42

Powering test - Monday 14.05 -

Done on Monday 14.05.2007

9:30	PCC on 120A correctors of DFBMC/A
10:30	Deconsignation of Q5-Q4 PC
11:00	Problems with Q5 – Water faults – TS/CV came at 13:30 – they cleaned the filters – Problem recovered.
14.30	AB-PO started to tests D2 with a 60A PC connected to the magnet (circuit definition)– DC cable disconnected from PC side.
14:42	Logging not working. Need to disactivate and re-activate the SOC from SOC editor to restore it. Monitoring problem RCBCH5 and RCBCV5 stopped transmitting data to the monitoring system. Expects contacted. System restarted. Problem disappeared. Systected 'middleware' problem in the network - problem is known and happens once a week.
14.50	Create and activate new SOC named PCC_IPDQ140507 with circuits RQ4.L8 RQ5.L8 and RD2.L8.
15.30	Deconsignation of QH for Q5-Q4-D2
16.30	PCC tests for SOC PCC_070510 finished (corrector circuits DFBMA/C)
16:40	Testing communication between cryo-maintain signal and PIC, DFBMA,DFBMC
16.45	End of the RD2.L8 charaterization
17.30	RQ4.L8B1 and RQ4.L8B2 ready for PCC
17.30	QPS detecting voltages of around ~40-50mV from the magnet protection and trip the PC (not current leads). These trips occur immediately after attempting to ramp the power converters. Note that the QPS trip threshold was reduced from 100mV to 20mV.
18.30	Same problem on Q5.
19:00	Tests end

Schedule for Tuesday 15.05.2007 in sector 7-8

WHEN CONDITIONS FOR THE ElQA IN THE DFBAs ARE MET:

DFBAO	ElQA continuity test
DFBAN	ElQA continuity test

WHEN CONDITIONS FOR POWERING ARE MET (CRYO, MPP, MEL) IN THE POWERING SUBSECTOR ML8:

PC CONFIGURATION IN RQ4, RD2 AND RQ5

DFBMA	RQ4.L8 RD2.L8	Balisage with flashing lights	HCC
	RQ4.L8 RD2.L8	Warn the QPS team that the main circuit will be powered	HCC
	RQ4.L8 RD2.L8	Unlock the corresponding quench heaters power supplies and charge	AT/MEL
	RQ4.L8 RD2.L8	Unlock and switch on the corresponding power converters	AB/PO
	RQ4.L8 RD2.L8	PC configuration UP TO 100 A	AB/PO

DFBMC	RQ5.L8	Balisage with flashing lights	HCC
	RQ5.L8	Warn the QPS team that the main circuit will be powered	HCC
	RQ5.L8	Unlock the corresponding quench heaters power supplies and charge	AT/MEL
	RQ5.L8	Unlock and switch on the corresponding power converters	AB/PO
	RQ5.L8	PC configuration UP TO 100 A	AB/PO

WHEN CONDITIONS IN ARC ARE MET GO ON WITH THE PROGRAMME FOR 60A CONVERTERS (ORBIT CORRECTORS) AND 120A (Q7 TO Q10 CORRECTORS) AS WELL AS THE ELQAs IN THE DFBAs X: previous day - X : last day - O : Proposal

	PC_Config	PNO.1	PNO.2	PNO.3
RCBH11_L8B1	X	X	X	X
RCBV11_L8B2	X	X	X	X
RCBH12_L8B2	X	X	X	O
RCBV12_L8B1	X	X	X	O
RCBH13_L8B1	X	X	X	O
RCBV13_L8B2	X	X	X	O
RCBH14_L8B2	X	X	X	O
RCBV14_L8B1	X	X	X	O
RCBH15_L8B1	X	X	O	O
RCBV15_L8B2	X	X	O	O
RCBH16_L8B2	X	X	O	O
RCBV16_L8B1	X	X	O	O
RCBH17_L8B1	-				PC_Config/crowbar tests to be repeated
RCBV17_L8B2	-				PC_Config/crowbar tests to be repeated
RCBH18_L8B2	-				PC_Config/crowbar tests to be repeated
RCBV18_L8B1	-				PC_Config/crowbar tests to be repeated
RCBH23_L8B1	O
RCBV23_L8B2	O
RCBH24_L8B2	O
RCBV24_L8B1	O
RCBH25_L8B1
RCBV25_L8B2
RCBH27_L8B1
RCBV27_L8B2
RCBH28_L8B2
RCBV28_L8B1
RCBH29_L8B1
RCBV29_L8B2
RCBH31_L8B1
RCBV31_L8B2
RCBH32_L8B2
RCBV32_L8B1

	PC_Config	PIC2	PNO.1	PNO.2	PNO.3	PNO.4
RCBCH9_L8B1	-						PC_Config/crowbar tests and TFA missing
RCBCV9_L8B2	-						PC_Config/crowbar tests and TFA missing
RCBCH10_L8B2	-						PC_Config/crowbar tests and TFA missing
RCBCV10_L8B1	-						PC_Config/crowbar tests and TFA missing

**

Comments:

Edit, attach file or add comment

---

Created by Main.MariaPazCasasLino on 2007-05-14 - 10:54

Powering Tests Sector 7-8. Minutes 14/05/2007

RAT_20070514.pdf:
https://twiki.cern.ch/twiki/pub/HCC/BlogEntryPoint8x2007x05x14x10x53/RAT_20070514.pdf

Comments:

Edit, attach file or add comment