The fuse for both roughing pumps blows when roughing the chamber. With the help from Edi: disconnect the exhaust port on the roughing pump for the first few hundred torrs of roughing. Reconnect and continue.

Seems the roughing pump RP1  pushes air towards the exhaust of RP2 which blows the fuse

When turned ON it was not going higher than 3.6A (EPICS/front panel). Kazuya checked the connections at the back and also the EPICS/PLC/PS input/output signals. He compared these values with the similar once of the TSH:TBHT PS (which is also a Xantrex PS 10-600). E-Fault 6275

It turned out to be the connections on the top of the ion source box: the target heater was not connected and the power supply was not seeing the load. Tomorrow we'll check all the top connections, with the corresponding power supplies.

Anders Mjos wrote:

Thursday, August 23, 2012, 10:40: Replacing TMSRP2 with Edi. E-fault 6261. Thursday, August 23, 2012, 10:49: TMSRP2 replaced and started.

Edi will replace TMSRP2 again as it became noisy since yesterday morning. Vacuum should not be affected by the work.

start high voltage and heaters

mass scan has been started after optimization on 23Na

mass scan is finished saved as

http://isacwserv.triumf.ca/onlylocal/isactdata/save_restore/masscorr/plotdump-local-clean.txt_Sep7_12_13-01-51.txt

start cooldown. Found computer at teststand off. Somebody tried to login with username ARIEL.

Friday, September 14, 2012, 16:33: Roughing

Friday, September 14, 2012, 16:57: Starting turbos

Friday, September 14, 2012, 17:05 : Turbos at speed

Friday, September 14, 2012, 17:07: Vacuum at 8.7E-6

Thursday, September 20, 2012, 14:24: Turbos off

Thursday, September 20, 2012, 15:20: Venting

Thursday, September 20, 2012, 15:50: Roughing

Thursday, September 20, 2012, 15:54: Aborting. VCR for gas line not connected.

Thursday, September 20, 2012, 16:09: Roughing

Thursday, September 20, 2012, 16:29: Starting turbos

Thursday, September 20, 2012, 16:38 : Turbos at speed

Thursday, September 20, 2012, 16:39 : Vacuum at 1.3E-5 torr

Anders Mjos wrote:

Thursday, September 20, 2012, 15:50: Roughing Thursday, September 20, 2012, 15:54: Aborting. VCR for gas line not connected. Thursday, September 20, 2012, 16:09: Roughing Thursday, September 20, 2012, 16:29: Starting turbos Thursday, September 20, 2012, 16:38 : Turbos at speed Thursday, September 20, 2012, 16:39 : Vacuum at 1.3E-5 torr

 Friday, September 21, 2012, 08:19: Cooling water on. Vacuum stable at 2.3E-7 torr.

Backing pressures TSG:CG1A/B are fluctuating between 0.02 and 0.05 since Sept 17th at ~17h. Expected values <0.01.

 Test stand was off this morning and EPICS controls in "white-out". Controls is looking into it.

Update  13:51:

Controls have reestablished contact with the PLC.

See e-fault 6329

Tried to start the pump from another power outlet with Edi. No luck. Pump will be replaced tomorrow.

Anders Mjos wrote:

See e-fault 6329 Tried to start the pump from another power outlet with Edi. No luck. Pump will be replaced tomorrow.

 Pump replaced by vacuum group

Did the HV conditioning up to 30kV.

Started the heaters conditioning:

for TSH:TGHT up to 580A

for TSH:TBHT up to 230A