| Miniproposals | ||||||||||
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| Operators | |
| Session leader(s): | Earl Marmar |
| Physics operator(s): | Robert Granetz |
| Engineering operator(s): | Unknown |
| Engineering Operator Run Comment |
| EF-1 test |
| Session Leader Plans |
| Physics Operators Plans |
| Session Leader Summaries |
| Entered: Jul 7 2004 03:49:06:257PM |
| Author: To Be Determined |
| Run summary for 30 April 1993: EF1U&L successfully operated at up to 12 kA under PLC current control. EF1U successfully operated under hybrid pre-programmed voltage control AND feedback control using the bus rogowski, AND feedback control using the gradient of vertical field. EF1L voltage control does not work. Reason unknown EF1U&L successfully commutated and crobarred. OH1 successfully operated at up to 17 kA under PLC current control. OH1 voltage control does not work. Fix is probably known. OH1 commutation failed (only one shot attempted). Extensive comments have been made in the logbook (thanks Earl). Tomorrow's run will pick up with OH2U&L, EF3, EF4... R. Granetz |
| Physics Operator Summaries |
| Session Leader Comments | |||
| Apr 30 1993 09:45:56:880AM | 930430003 | Earl Marmar | 7 kA in EF1U and EF1L. Under PLC control. Successful shot.
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| Apr 30 1993 10:27:23:830AM | 930430004 | Earl Marmar | EF1U&L preprogrammed voltage control from the hybrid; asking for 7 kA, got 8 kA
(supply limit at 8 kA). Voltage programming was successful, but request of 500 V was too high so supply went into current regulation. |
| Apr 30 1993 10:47:02:280AM | 930430005 | Earl Marmar | EF1U&L again, preprogrammed voltage control. Lowered peak demand to +/- 200V.
EF1U about right. EF1L again went up to 8kA and then into current regulation. |
| Apr 30 1993 11:03:04:240AM | 930430006 | Earl Marmar | EF1U&L again, preprogrammed voltage control. Lowered peak demand to +100 / -200 V
EF1U good. Same problem with EF1L. |
| Apr 30 1993 11:09:36:240AM | 930430007 | Earl Marmar | EF1U&L PLC voltage preprogramming to test EF1L voltage regulation.
EF1L voltage regulation is not working. EF1U still ok. |
| Apr 30 1993 11:32:02:410AM | 930430008 | Earl Marmar | EF1U only. Hybrid control with preprogrammed voltage control, current feedback has
been turned on friom the hybrid but PID and M matrix both zeroed. Programming set to reproduce shot 930429007. |
| Apr 30 1993 11:32:49:420AM | 930430008 | Earl Marmar | EF1U only. Hybrid control with preprogrammed voltage control, current feedback has
been turned on friom the hybrid but PID and M matrix both zeroed. Programming set to reproduce shot 930429007. |
| Apr 30 1993 11:34:12:510AM | 930430008 | Earl Marmar | EF1U only. Hybrid control with preprogrammed voltage control, current feedback has
been turned on friom the hybrid but PID and M matrix both zeroed. Programming set to reproduce shot 930429007. Current went up to 8kA and supply went into current regulation. |
| Apr 30 1993 11:48:37:270AM | 930430009 | Earl Marmar | EF1U only. Hybrid control with lower preprogrammed voltage control, and current
feedback turned on with low gain for 100 milliseconds (-.3 to -.2 seconds) PID = 1, M = .1 This appears to have worked. |
| Apr 30 1993 12:01:01:840PM | 930430010 | Earl Marmar | EF1U only. Hybrid control with preprogrammed voltage control, and current
feedback turned on with gain for entire shot (-1 to +1 seconds). PID = 2 M = .1 The hybrid did not function properly. There was no feedback. The matrices were not switched in properly. |
| Apr 30 1993 12:05:47:040PM | 930430011 | Earl Marmar | Try again after coldstart on the hybrid. Same problem, still no feedback, no matrix
switching. |
| Apr 30 1993 12:51:58:360PM | 930430012 | Earl Marmar | Trying commutation tests on EF1 U&L under PLC voltage preprogramming control.
Hybrid control is disabled. Data system(s) did not trigger properly; we got no data. Will retry the shot. |
| Apr 30 1993 12:55:05:200PM | 930430012 | Earl Marmar | Apparently there was no start trigger from the STATE PLC.
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| Apr 30 1993 01:06:18:800PM | 930430013 | Earl Marmar | Retry commutation test of EF1 U&L.
Both supplies commutated successfully at t=0, as expected. There was no crowbar re-close attempted. |
| Apr 30 1993 01:21:48:250PM | 930430014 | Earl Marmar | Commutation test of EF1 U&L.
Still under PLC control. Attempt to commutate at t=0, crowbar at t=30 msec, inversion still at .25 seconds. SCR switches did not close at the beginning of the shot. |
| Apr 30 1993 01:31:51:230PM | 930430015 | Earl Marmar | Retry commutation test of EF1 U&L.
Still under PLC control. Attempt to commutate at t=0, crowbar at t=30 msec, inversion still at .25 seconds. Successful shot. EF1 commutation tests complete. |
| Apr 30 1993 01:41:41:320PM | 930430016 | Earl Marmar | Back to hybrid control with current feedback on EF1U.
PID gain=2, M = .1, feedback on from -1 to +1 seconds. This is a retry of the settings from shot 10. SCR switch did not close at the beginning of the shot. Hybrid appeared to trigger properly. Will retry again on next shot. |
| Apr 30 1993 01:52:07:080PM | 930430017 | Earl Marmar | Hybrid control with current feedback on EF1U.
PID gain=2, M = .1, feedback on from -1 to +1 seconds. Successful. |
| Apr 30 1993 02:10:27:040PM | 930430018 | Earl Marmar | EF1U Hybrid control. Feedback on d(B_z)/dR at R=.665
PID gain=1, M = -350, feedback on from -1 to +1 seconds. Successful, but error was already small and gain was also small (time constant ~ 1 s) |
| Apr 30 1993 02:28:36:560PM | 930430019 | Earl Marmar | EF1U Hybrid control. Feedback on d(B_z)/dR at R=.665 with a programmed step at -.3 s
PID gain=5, M = -350, feedback on from -1 to +1 seconds. There was feedback but it was not quite right (asked for -.15 T/m dropping to -.1 T/m; got -.18 dropping to -.15). |
| Apr 30 1993 02:31:28:590PM | 930430020 | Earl Marmar | Back to PLC control, EF1 U&L. Asking for 12 kA in each coil.
Successful; no crowbars. |
| Apr 30 1993 03:12:08:020PM | 930430021 | Earl Marmar | Now test OH1.
PLC programming, 2 kA. Got 3kA on the shunt; there is a problem with the Rogowski The current stayed on at least until +3 seconds (end of data aquisition), instead of inverting at -.5 s. |
| Apr 30 1993 03:23:00:070PM | 930430022 | Earl Marmar | Retry OH1.
PLC programming, 2 kA. Same problems as shot 21. |
| Apr 30 1993 03:35:42:340PM | 930430023 | Earl Marmar | Retry OH1.
PLC programming, 2 kA. Got 2.7 kA, inversion at -.5 s as programmed. |
| Apr 30 1993 03:45:09:810PM | 930430024 | Earl Marmar | OH1.
PLC programming, 15 kA. Successful. |
| Apr 30 1993 04:01:24:920PM | 930430025 | Earl Marmar | OH1.
Hybrid voltage preprogramming, no feedback. Asking for 600 V. Got PLC current limit instead. Apparently voltage control not working. |
| Apr 30 1993 04:25:52:280PM | 930430026 | Earl Marmar | OH1.
PLC voltage preprogramming. Asking for 300 V. OH1 PLC did not trigger. |
| Apr 30 1993 05:00:10:230PM | 930430027 | Earl Marmar | OH1.
Commutation test under PLC control. Pulsed, but no commutation. |
| Physics Operator Comments |
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 2 | 09:28:48:400AM | Test | Ok | Good Shot |
| 3 | 09:37:11:870AM | Test | Ok | EF_1 Upper and Lower Successful Shot |
| 4 | 09:51:27:060AM | Test | Bad | EF_1_U+L Hybrid - Faults |
| 5 | 10:27:30:990AM | Test | Ok | EF_1_U followed V_prog better than Lower |
| 6 | 10:51:36:140AM | Test | Ok | good |
| 7 | 11:04:20:170AM | Test | Bad | EF_1_L bad V feedback |
| 8 | 11:23:55:810AM | Test | Ok | EF_1_U only - Hybrid simmulating feedback command |
| 9 | 11:42:18:360AM | Test | Ok | EF_1_u Feedback working |
| 10 | 11:50:50:400AM | Test | Ok | EF_1_U more Hybrid commands |
| 11 | 11:58:59:210AM | Test | Ok | EF_1_U Hybrid command |
| 12 | 12:37:24:130PM | Test | Bad | No trigger; no data |
| 13 | 12:53:06:600PM | Test | Ok | Commutation both EF1U and EF1L |
| 14 | 01:07:50:370PM | Test | Bad | EF_1 Switches did not close |
| 15 | 01:21:54:990PM | Test | Ok | Crowbar at 30 msec successful both switches |
| 16 | 01:33:29:060PM | Test | Bad | EF1 switch did not close; comm/cond fault |
| 17 | 01:43:35:810PM | Test | Ok | good current feedback thru hybrid |
| 18 | 02:00:23:930PM | Test | Ok | EF1U with Hybrid feedback on dBz/dr |
| 19 | 02:11:49:140PM | Test | Ok | hybrid feedback dBz/dr woth higher gain |
| 20 | 02:26:16:660PM | Test | Ok | good 11 kA pulse; did not reach current regulation |
| 21 | 02:53:48:120PM | Test | Bad | oh1 first test; did not invert properly |
| 22 | 03:12:56:090PM | Test | Bad | OH1 did not invert; inversion end-stop multiplier chip missing |
| 23 | 03:31:24:910PM | Test | Ok | OH1 good 2.5 kA closed circuit test |
| 24 | 03:38:23:360PM | Test | Ok | OH1: 17 kA out with 15 kA I limit. Voltage channel bad |
| 25 | 03:51:32:770PM | Test | Ok | OH1 hybrid test; hybrid operator error |
| 26 | 04:03:42:910PM | Test | Bad | No pulse |
| 27 | 04:51:58:420PM | Test | Bad | oh1 pulsed but no commutation |
| 28 | 05:41:11:280PM | Test | Ok | OH2 no-power test |
| 29 | 05:55:34:250PM | Test | Bad | OH2 TEST |
| 30 | 06:43:49:890PM | Test | Bad | OH2 TEST W/ NO POWER |
| 31 | 06:50:01:730PM | Test | Bad | oh2 no power test |
| 32 | 06:55:09:120PM | Test | Bad | still no pulse! |