Anders Mjos wrote:

The Xantrex 10V 600 A power supply for the TBHT has been moved to ITE to replace the failed TGHT power supply

 A spare EMI-EMS 10 V - 500 A power supply was installed last Friday by John Chow. Dave Morris has connected the controls today and updated EPICS. The local voltage readback on the power supply does not work.

Wednesday, September 20, 2017, 14:08: Roughing.

Wednesday, September 20, 2017, 14:28: Turbos on.

Wednesday, September 20, 2017, 14:33: Ion gauge on.

Wednesday, September 20, 2017, 14:39: RGA on.

Thursday, September 21, 2017, 08:43: Waterlines opened. No response on RGA. Vacuum ok @ 1.7e-07T

Thursday, September 21, 2017, 08:49: Power/sources on.

Thursday, September 21, 2017, 09:03: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Thursday, September 21, 2017, 09:04: IV4 Opened.

Thursday, September 21, 2017, 09:08: Auto ramping TGHT / TBHT to 580 / 200 A @ 2A per min.

Friday, September 22, 2017, 13:42: Bias / EZL increased to 40 / 17.3 kV. Tune accordingly.

Mass scan ok

Friday, September 22, 2017, 14:33: Bias / EZL decreased to 30 / 13 kV. Tune accordingly.

Friday, September 22, 2017, 14:39: Auto-cooling @ 2A / min

Monday, September 25, 2017, 10:20: BIAS / EZL / EE @ 0 V.

Monday, September 25, 2017, 10:21:Power/sources off.

Monday, September 25, 2017, 10:32: RGA off. IV4 closed

Monday, September 25, 2017, 10:33: Ion gauge, turbos off.

Monday, September 25, 2017, 10:37: Waterlines purged.

Monday, September 25, 2017, 13:19: Venting.

Monday, September 25, 2017, 14:10: Roughing.

Wednesday, September 27, 2017, 08:23: Turbo pumps on

Friday, October 06, 2017, 09:04: Ion gauge off. Turbos off.

Friday, October 06, 2017, 11:17: Venting.

Tuesday, October 10, 2017, 09:30:  Install/swap gas bottles. Elog.

Removed smallest Neon leak. Neon Bottle Serial #11231. Leak rate calibrated @ 1.59e-07 atm*CC/sec (02/09/2016)

In use:

Neon Bottle Serial #09572. Leak rate calibrated @ 1.82e-06 atm*CC/sec (02/09/2016)

Argon Bottle Serial #09937. Leak rate calibrated @ 1.35 x10-6 Atm-CC/sec (08/06/2003)

Tuesday, October 10, 2017, 10:12: Gas bottles opened. Pump not on? Vacuum spiked into e-04T. All closed. Await vacuum stabilization.

Tuesday, October 10, 2017, 10:36: Power on. Pump on Gas bottles opened. Await vacuum stabilization.

pump off.

Unable to hold Anode voltage after power supply change out.

Tuesday, October 10, 2017, 14:55: The Test Stand has been configured for Anode bias and the electrical connections have been wired according to ISK4523D REV 6.

At this current point in time John Chow has removed the power supply (PS). Will update once polarity is switched (if required) and is re-installed to the test stand.

Wednesday, October 11, 2017, 10:25: Polarity was switched  and PS is installed on the test stand. Sources/power switched on.

Monday, October 16, 2017, 11:45: Roughing.

Monday, October 16, 2017, 12:05: Turbo pumps started.

Monday, October 16, 2017, 12:10; Ion gauge on.

Tuesday, October 17, 2017, 10:43: Waterlines opened. RGA not on. Vacuum ok @ 1.53e-07T. Power/sources on.

Tuesday, October 17, 2017, 10:45: RGA on.

Tuesday, October 17, 2017, 10:50: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Tuesday, October 17, 2017, 14:44: EE Current Stable.

Tuesday, October 17, 2017, 14:52: Power/sources off.

Tuesday, October 17, 2017, 14:54: Waterlines purged.

with Fernando

Tuesday, October 24, 2017: Testing setup with triple coil

Wednesday, October 25, 2017: Field mapping at 70 A and current/field measurements on triple coil.

The turbo pump will need replacement.

Turbo pump TP6 requires replacement.

Wednesday, November 15, 2017, 09:55: Turbo (TP2) off. Ion gauge off.

Wednesday, November 15, 2017, 10:55: Venting

Power outage over the weekend. Reboot PLC and systems.

Monday, December 04, 2017, 08:22: Turbo pumps TMS:TP6 & TP2 Restarted.

Monday, December 04, 2017, 08:28: Time out on turbo pump TP1B.

Monday, December 04, 2017, 09:25: Turn off/restart TSG:TP1B Maincontrol.

Monday, December 04, 2017, 09:26: TMS:IG6 Restarted.

Monday, December 04, 2017, 14:24: Multi gauge controller to TSG:IG1 burned out. Replaced. Vacuum @ 4.45e-06T. Monitor.

Powered down vacuum gauge and turbo pump controllers

Tuesday, January 02, 2018

Cycled power for TCSIOC and PLCIOC

TP2 and TP6 started

TP1B does not start. TP1B controller does not start up correctly - controller will have to be replaced. E-fault submitted (10739).

Controller for PS for Q1,6 was switching constantly. Unplugged and plugged back in resolved the problem

TP1A started

(Aaron Schmidt)

Wednesday, January 03, 2018, 08:15:  TSG:TP1B Still non-responsive.

Wednesday, January 03, 2018, 08:20: Power/sources on. Add Voltage/Amp and check power supplies.

BIAS - 300V Reads 290V - OK

EE - 300V Reads 298V - OK

EZL - 300V Reads 293 V - OK

CB1 - 10V Reads 10V - OK

VCB1 - 10V Reads 10V - OK

CBC (both)  - 10V Reads 9V - OK

TBHT - 10A Reads 9.9A (009 direct off PS) - OK

TGHT - 10A Reads 9.8A (007 direct off PS) - OK

Optics Check:

Magnet ok - Some optics start, some do not respond. Submit fault report for communications issues.

Fault Report submitted - 10742

Thursday, January 04, 2018, 14:38:

Kyle and Dave were able to get all the canbus optics for ISAC test stand re-configured except one device: TMS:Q2

"We investigated and it looks like the controller board for the TMS:Q2 supply is toast. Unfortunately these boards are a very old style so we don't have a surplus of replacements on hand. Our electronics shop did have some spares but the spares are not ready for use and need to have a few components soldered on. " - Kyle

The repaired controller board should be ready for next week.

Wednesday, January 10, 2018, 13:22: TS optics all fixed. Turbo pump TP1B is still out.

Computer, TS, epics, restarted. Power checks

Monday, January 22, 2018, 09:00: ISAC PLC TLCIOC Restarted. 

Turbo pumps restarted.

Monday, January 22, 2018, 09:26: New controller for TSG:TP1B brought in.

(Connect) Global reset. Resart Turbo pumps.

Monday, January 22, 2018, 09:40: Both turbo pumps @ speed.

Vacuum controls ok

Sources ok

Optics -  Issues. Some restart, others do not.

Friday, January 26, 2018, 11:08: New Helium tank installed inside the Test Stand.

-The 'Full' tag remains. The He tank was not opened.

-The old tank was placed beside the Test Stand beneath/beside the power switch.

Monday, February 05, 2018, 09:10: the epics program was in 'White-out'. Turbo pumps tripped.

Unplug, re-plug PLC.

Monday, February 05, 2018, 09:16: Restart Turbo pumps on chamber & beamline.

Monday, February 05, 2018, 09:21: Ion gauges on.

Tuesday, February 06, 2018, 09:00: TSG:CB1 noted to be red. Attempts to restart/reconfigure failed. Alive displays red MAJOR. Fault submitted.

Wednesday, February 07, 2018, 08:40: A 75 kV Glassman power supply was installed in the rack for use in further HV testing.

-The 75kV power supply is linked into the keyed interlock system. The key & switch labelled BIAS/EZL will unlock it.

-The PS is currently not connected to the epics controls and can only be adjusted manually.

-The old Glassman supply is disconnected and removed from the cage.

The 75kV power supply is now in EPICS under the usual TSG:BIAS controls. The upper limit has been set to 70kV to protect the transformer.

Thursday, February 08, 2018, 16:54

Testing the HV bias I found that the einzel lens was behaving strangely. When I tried to put it higher than 1kV, the current would start spiking from 12uA to > 100uA. The voltage would jump around quite a bit as well (+/- 100V). Everything seems the way it was before, except the EZL power supply is still connected in parallel with the old bias power supply, which is no longer powered. Maybe one of the transorbs connecting line and neutral on the bias side is fried? I will unhook the connection to the old PSU and try again.

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.)

Ramped up to 60kV with the new power supply, same as what we did last time with the standard test stand bias supply (see entry #627 ). Much more instability on the bias current readout (see attached screen shot), develops around 54kV. As well, the old supply read out 37uA at 60kV while the new supply reads out ~85uA. This could just be an EPICS read back issue though.