The variable leak rate valve will be used for TM3 HV spark tests in TCS

Anders Mjos wrote:

The variable leak rate valve will be used for TM3 HV spark tests in TCS

 Variable leak valve returned yesterday (2017-01-18). New calibrated leaks installed. Ar and Ne. System leak checked OK after.

The TSH:TGHT stopped at 263.7A, but the setpoint is still ramping (now at 421A). The voltage is set correctly: have 6.238V setpoint and 4.386V readback. The reading on the Power Supply shows 418A. Through the window the target assembly looks at high temperature. The readback on Epics seems stuck. E-Fault for Controls 6389

Thursday, July 12, 2012, 15:48: bypass removed

A water leak on MB1 was found and reported by operations on June 10th e fault 7429

MB1 can not be switched on due to an TSH:MB1 water flow trip. Paddle wheel is rotating.

Wednesday, June 18, 2014, 14:03: Paddle wheel replaced with a used one from beam lines. Model SST150. Signal recovered.

Monday, April 15, 2024, 14:33: On Friday it was noted that the EE was being troublesome. If we put -500 V on the EE the PS would deliver -1000 V. However it would slowly trickle downward. elog:1002.

Tom H. had a look at it this afternoon & determined the PS is operating, however the signal going to it is peculiar. Controls group as been notified as well. Awaiting further response.

Tuesday, April 16, 2024, 16:09: Full epics & PLC restart needed. All TP & RP shut down.

Tuesday, April 16, 2024, 17:45: Restart RP. TP1B on. TP6 & TP2 on.

Tuesday, April 16, 2024, 17:49: TP1A on.

Tuesday, April 16, 2024, 17:55: Restarted TP6.

Tuesday, April 16, 2024, 18:05: Long sigh* TP6 was in soft start mode. Controller put back to regular start. TP6 started.

Tuesday, April 16, 2024, 18:08: IG1 & IG6 on.

Wednesday, April 17, 2024, 10:25: IG, TP, & RP, off.

Wednesday, April 17, 2024, 13:03: RP on.

Wednesday, April 17, 2024, 13:14: TP1A on.

Wednesday, April 17, 2024, 13:07: TP6, TP2, & TP1B on.

Wednesday, April 17, 2024, 13:23: IG6 & IG1 on.

Wednesday, April 17, 2024, 13:25: EE to -500V. Read back on Epics -500V. PS direct @ -500V

Wednesday, April 17, 2024, 13:26: EE to -1500V. Read back on Epics -1500V. PS direct @ -1500V

Wednesday, April 17, 2024, 14:07: EE was brought back to 0V. ISAC TS closed up & ready for operation.

TSG:CG1A and TSG:CG1B shows an increase in vacuum.

See attached archived data for details.

The backing pressure at TSGRP1 does not go below 578 mT. Fault report to vacuum.

 TSGIG1 has timed out. As seen on the attached screen shot, the IG has been out since 17h May 1st.

Anders Mjos wrote:

TSGIG1 has timed out. As seen on the attached screen shot, the IG has been out since 17h May 1st.

 Wednesday, May 09, 2012, 09:15: ISAC Fault Report submitted

Friday, February 09, 2018, 08:25    Disconnected the AC power chain from the old bias supply but now cannot turn on the new bias supply in EPICS because the "TSGBIASSAFETY ok" interlock is tripped. No idea what this means - maybe it checks for AC power?

Friday, February 09, 2018, 08:48    Reconnected power to old bias supply, does not fix problem. Talked to Mike, he thinks it is PLC related, so will call Gelo later.

Friday, February 09, 2018, 11:38 TSGBIASSAFETY ok interlock problem seems to have solved itself, it now appears to be working fine. Will turn off power for now and continue tests on Tuesday. (note: turns out Mike told Dave about the problem and he solved it. No one knows what this interlock is for, but it used to be reset using the Global Reset button and now the RST button for the power supply should also reset it.)

turbo pump TSG:TP1B has tripped off. Cannot be restarted. Fault report to vacuum. Everything switched off again

e-fault 7748

Monday, October 27, 2014, 09:21: Switched off turbos

Friday, October 31, 2014, 10:43 : Venting

Friday, October 31, 2014, 14:3: Turbo replaced by vacuum group

Both turbo pumps at the source box were found off. TSG:TP1A has been started normally. TSG:TP1B does not spin up above 3KRPM even after several attemps. A fault report has been send to vacuum group.

Friedhelm Ames wrote:

Both turbo pumps at the source box were found off. TSG:TP1A has been started normally. TSG:TP1B does not spin up above 3KRPM even after several attemps. A fault report has been send to vacuum group.

 after about 30 minutes running at normal speed TP1A failed as well. Both pumps will be kept off over night.

Tuesday, April 18, 2017, 07:30: TSG : TP1B Tripped on Saturday.

Tuesday, April 18, 2017, 07:40: TSG : BV1B opened. TSG : TP1B restarted.

Tuesday, April 18, 2017, 07:48: TSG : TP1B failed to restart.Turn off.

Tuesday, April 18, 2017, 07:59: TSG : BV1B opened. TSG : TP1B restart attempt. No audible response detected.

Tuesday, April 18, 2017, 08:01: The turbo pump is off and BV1B closed. Fault report entered #9815.

Tuesday, April 18, 2017, 09:40: Ion gauge, remaining turbo pump off.

Tuesday, April 18, 2017, 13:00: Vacuum Group arrival to change TSG : TP1B.

Once the turbo pump cooling line was loosened slightly, a slight water leak occurred. Line snapped. Water leak. Valves to all turbo pump cooling closed.

***NOTE*** - From Thursday, November 24, 2016, 08:05: TMS:TP2

Friday, November 25, 2016, 14:45: Turbos at speed. Vacuum at 1.9E-5 T

*** Note *** : One of the copper cooling lines was leaking. The line was fixed. Monitor. <---- Due to this recurring issue, the decision was made to air cool the turbo pumps.

Tuesday, April 18, 2017, 14:10: Air cooling to replace water cooling. TSG : TP1A already has air cooling. Replace the cooling on the other 3 of 4 turbo pumps.

Tuesday, April 18, 2017, 15:27: All turbo pump cooling replaced with air cooling. TSG : TP1B successfully replaced.

Wednesday, April 19, 2017, 07:57: Roughing.

Wednesday, April 19, 2017, 09:01: Turbo pumps on. Bypass made on water flow (Still air cooled overall)

Wednesday, April 19, 2017, 09:15: TSG :TP1A accidentally tripped. Restarted.

Wednesday, April 19, 2017, 09:42: Both turbo pumps off. Unable to achieve proper vacuum.

Wednesday, April 19, 2017, 11:04: Roughing.

Wednesday, April 19, 2017, 11:44: TSG :TP1A on.

Wednesday, April 19, 2017, 11:51: TSG :TP1B on.

Pump found off on Tuesday morning.

Tuesday, May 22, 2018, 08:40: Starting TP1A

Tuesday, May 22, 2018, 08:47: TP1A at speed

Tuesday, May 22, 2018, 16:33: Source and optics off

Wednesday, May 23, 2018, 08:30: Stopped TP

Wednesday, May 23, 2018, 14:10: Water purged

Vacuum at 1.7E-7 T

Corrected title from off to timed out . It seems the controller lost contact with the pump when I touched the rack. The pump recovered right back to 38 kRPM upon restart.

 See elog 944

Wednesday, November 16, 2022, 13:23: TP1 A replaced

Wednesday, November 16, 2022, 13:25: Roughing.

Wednesday, November 16, 2022, 14:53: TP1B on

Wednesday, November 16, 2022, 14:56: TP1B at speed.

Wednesday, November 16, 2022, 14:58: TP1A on.

Wednesday, November 16, 2022, 15:07: TP1A at speed. IG1 on. Vacuum @ 3.32e-05T

Friday, January 20, 2017, 08:25: TSG : TP1A and TSG : BV1A were noticed to be tripped around 6am.

Friday, January 20, 2017, 08:42: Bypass to restart TSG : TP1A and TSG : BV1A. TP1A is at speed.

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Continue to monitor.