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Created by Main.BorisBellesia on 2007-05-15 - 18:59

Powering test - Sector 78 - Tuesday 15th

Done on Tuesday 15.05.2007

9:30	Test start on D2 – QH on.
9:40	Up to ~90A apparently without QPS protection – Actually It was not the case.
15.24	QH enabled for RD2.L8, QPS interlock problem on D2 understood. Only the displayed ref. voltage was a sum of the voltage picked up from the two apertures instead of a difference. At the level of protection the signal was right.
15:34	PCC start on D2 - up to 200A at 16:00
17:30	Loss of Cryo-Start and Cryo-Maintain due to a hardware intervention. Physical cryo conditions were stable. Signals recovered after few minutes.
16:23	PCC for D2 finished successfully
17:40	HQ of RQ4.L8 on – Reiner changed
17:50	Still problems on Q4 – Picked voltage exceed 20mV when PC tries to start up – QPS trips the PC.
19:00	Tests end

Schedule for Wednesday 16.05.2007 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:

RQ4.L8	AT-MEL General re-check AB-PO - Special test with a 60A power converter – charatizarion
DFBMC-A	PIC2 on the 120A corrector circuits.

PC CONFIGURATION IN RQ4

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

PC CONFIGURATION IN RQ5

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

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Created by Main.MariaPazCasasLino on 2007-05-15 - 16:13

Powering Tests Sector 7-8 - Minutes 15/05/2007

RAT_20070515.pdf:
https://twiki.cern.ch/twiki/pub/HCC/BlogEntryPoint8x2007x05x15x16x12/RAT_20070515.pdf

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