Run IIA Level 1 Calorimeter Trigger Power Supply Repair Log --------------------------------------- This file was started in January 2003. The current version is in: www.pa.msu.edu/hep/d0/ftp/l1/cal_trig/hardware/rack_crate/ cal_trig_run_iia_power_supply_repair_log.txt +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 10-JAN-2003 Hello Brenda, We have 6 power supplies from a company called Pioneer Magnetics that need to go back to them for repair. These 6 supplies are: Pioneer Original Magnetics Purchase Model Type Serial Number Date --------- ------------- ------------- -------- 2926A-2 5D200-0-4-6-S 398966 MAR-1991 2926A-2 2D250-0-4-S 398988 MAR-1991 2926A-2 5D200-0-4-6-S 416254 JAN-1992 2926A-2 5D200-0-4-6-S 416262 JAN-1992 2926A-2 5D200-0-4-6-S 416268 JAN-1992 2926A-2 5D200-0-4-6-S 416270 JAN-1992 All 6 of these power supplies have the same problem which is, "Low Output, Bad Regulation, and High Ripple". Although these supplies are 11 or 12 years old, Pioneer Magnetics lists the model 2926A as a power supply that they both still service and sell new ones of. The contact at Pioneer Magnetics to arrange for the repair of these 6 power supplies is: Maureen at (800) 269-6426 Ext. 210 I believe that the shipping address where we will need to send these supplies is: Pioneer Magnetics 1745 Berkeley Street Santa Monica, CA 90404 Please verify that address before using it. The web URL for Pioneer Magnetics is: www.pioneermagnetics.com It would be good if we could have these supplies returned to us within about a 4 to 6 week period. I hope that you can arrange with them to pay for this repair work using a University business credit card, i.e. that we do not have to waste the time to get a MSU Purchase Order before this work can get started. My rough guess is that it will cost about $200 to $300 each to have these supplies repaired. These supplies are boxed up and are sitting in Rm 1200C. There are 3 boxes with each box holding 2 supplies. I have not yet put shipping labels on them (because I'm not certain where they are going). Please arrange for the shipping of these supplies. I think that UPS Ground shipping should be fine. Once you have the arrangements made for the repair of these supplies and have made the shipping labels, I think that Mike Nila could but the labels on the boxes and place the boxes where ever they need to go for UPS pickup. Thank you very much for doing the work to arrange for the repair of these supplies. Over the next year or two, we very likely are going to have more of these supplies to send back for repair. So it would be good to keep notes about any thing useful you find out that would make arranging this repair easier next time. Thanks, Dan +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 10-JAN-2003 Hello Brenda, We have 2 power supplies from a company called ASTEC that need to go back to them for repair. These power supplies where originally manufactured by a company called Powertec but then ASTEC purchased Powertec. We have had this type of power supply repaired by ASTEC since they purchased Powertec. ASTEC Original Powertec Purchase Model Number Serial Num Date Problem ------------ ---------- -------- --------------- 9R5-600-381 1723 FEB-1992 No Output 9R5-600-381 1725 FEB-1992 No Output Both of these power supplies have the same problem, "No Output". My understanding is that the contact person at ASCTEC with whom you can arrange for the repair of these supplies is: ASTEC Product Support Group Carole Berbaum at 1-760-804-2955 The general phone number for ASTEC is: 1-760-930-4600 or 1-888-412-7832 URL is www.astecpower.com It would be good if we could have these supplies returned to us within about a 4 to 6 week period. I hope that you can arrange with them to pay for this repair work using a University business credit card, i.e. that we do not have to waste the time to get a MSU Purchase Order before this work can get started. My rough guess is that it will cost about $500 each to have these supplies repaired. These supplies are boxed up and are sitting in Rm 1200C. Each of these supplies is in a separate box. I have not yet put shipping labels on them (because I'm not certain where they are going). Please arrange for the shipping of these supplies. I think that UPS Ground shipping should be fine. Once you have the arrangements made for the repair of these supplies and have made the shipping labels, I think that Mike Nila could but the labels on the boxes and place the boxes where ever they need to go for UPS pickup. Thank you very much for doing the work to arrange for the repair of these 2 supplies. Over the next year or two, we very likely are going to have more of these supplies to send back for repair. So it would be good to keep notes about any thing useful you find out that would make arranging this repair easier next time. Thanks, Dan +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Details of above returns are in the D0 Hall Log Book entry 20-JAN-2003 The following Pioneer Magnetics bricks are going back for repair: Pioneer Original Magnetics Purchase MSU Model Type Serial Number Date Serial Num --------- ------------- ------------- -------- ---------- 2926A-2 5D200-0-4-6-S 398966 MAR-1991 #27 2926A-2 2D250-0-4-S 398988 MAR-1991 #25 2926A-2 5D200-0-4-6-S 416254 JAN-1992 #60 2926A-2 5D200-0-4-6-S 416262 JAN-1992 #59 2926A-2 5D200-0-4-6-S 416268 JAN-1992 #97 2926A-2 5D200-0-4-6-S 416270 JAN-1992 #98 The following PowerTec ASTEC power supplies are going back for repair: ASTEC Original Powertec Purchase MSU Model Number Serial Num Date Problem Serial Num ------------ ---------- -------- ------------ ---------- 9R5-600-381 1723 FEB-1992 No Output #19 9R5-600-381 1725 FEB-1992 No Output #25 These 8 bricks were packaged and ready to ship on 13-JAN-2003 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Date: Wed, 29 Jan 2003 13:55:05 -0500 (EST) From: Dan Edmunds To: Brenda Wenzlick Cc: Hendrik Weerts Subject: Another ASTEC power supply for repair Hello Brenda, On Friday I will be bring back to MSU another power supply to send out for factory repair. This is another Powertec - ASTEC power supply that needs to go to ASTEC for repair. It is: Model Number: 9R5-600-381 Serial Number: 1727 Originally Purchased: February 1992 Problem: No output If you could get the paper work for this repair work started today or tomorrow that would be great. I will have it boxed up and ready to ship by Monday. I will make sure that Mike knows where it is. Thank you for taking care of this, Dan +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 17-FEB-2003 The following is from testing bricks at MSU with a capacitor band aid on their output. These are all bricks that were in the standard kind of failure mode problem for the 200 Amp Pioneer Magnetic bricks. MSU SN# 26 @ 160 Amp Load 0mV / 2 mV Ripple 5.003 Volt output MSU SN# 47 @ 160 Amp Load 0mV / 1 mV Ripple 5.007 Volt output MSU SN# 71 @ 160 Amp Load 0mV / 4 mV Ripple 5.004 Volt output MSU SN# 72 @ 160 Amp Load 0mV / 2 mV Ripple 5.003 Volt output +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24-FEB-2003 MSU SN# 54 a Pioneer Magnetics model 2926A-2 2D250-0-4-S 2.0V 250 Amp supply failed at Fermi on 13-FEB-2003 when it was running in PDM-17 in the lower Tier 1 crate in M106. It was brought to MSU and it would run for about 5 minutes and then stop - the amount of load did not change this behavior. The problem was C122 a 680 pFd mica feedforward capacitor between the 300V bus and the error amp - it leaked. Replaced it with a 500 pFd 6 kV ceramic cap and the supply now runs OK. The fan in this brick has been lubricated and the whole thing cleaned up. Tested for 1 hour at a 130 Amp load. Set up for 2.105 Volts. Ripple at 130 Amp load is: 0mV / 3 mV without an external band aid. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 25-FEB-2003 MSU SN#21 I'm not certain what SN# 21 was last used in. The most resent information that I know about SN# 21 is in the 27:30-JAN-2003 entry in the Log Book. Peter has modified this supply to have 6 internal capacitors, the original 3x 22,000 uFd and 3x 15,000 Mallory CGO capacitors. I have also lubricated the fan and generally cleaned up this supply. I used to start having trouble with a 50 Amp load. Ran it today for 3 hours at 160 Amps with no trouble. Made a short run at 200 or 210 Amps. It is set up at 5.010 Volts. The ripple after 3 hours at 160 Amps 0 mV / 1 mV (without an external band aid). +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 26-FEB-2003 MSU SN#2 This is a Pioneer Magnetics old model 2500A2 brick from 20-July-1988. The last information about SN#2 is in the Run I power pan log book. MSU SN#2 was used in the Run I TFW in M101. Cleaned up SN#2 and lubricated the fan. Ran it with an external capacitor band air for 3 or 4 hours with a 160 Amp load. With a 160 Amp load and the external capacitors it is setup at 5.050 Volts and makes 0mV / 1 mV of ripple. This brick could be used in the L1CT Control Crate. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 28-FEB-2003 MSU SN#3 This is a Pioneer Magnetics old model 2500A2 brick from 20-July-1988. The last information about SN#3 is in the Run I power pan log book. MSU SN#3 was used in the Run I TFW in M101. Cleaned up SN#3 and lubricated the fan. Ran it with an external capacitor band air for 3 or 4 hours with a 160 Amp load. With a 160 Amp load and the external capacitors it is setup at 5.050 Volts and makes 0mV / 2 mV of ripple. This brick could be used in the L1CT Control Crate. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 10-MAR-2003 On 7-MAR-2003 received back from repair Pioneer Magnetics supplies type 5D200 SN# 416262 MSU SN# 59 type 2D250 SN# 398988 MSU SN# 25 (SN# 398983) Take these bricks to Fermi and start putting them into PDM-09. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 13-MAR-2003 On 12-MAR-2003 received back from repair Pioneer Magnetics supplies type 5D200 SN# 398966 MSU SN# 27 type 5D200 SN# 416268 MSU SN# 97 type 5D200 SN# 416270 MSU SN# 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 19-MAR-2003 On 19-MAR-2003 received back from repair Pioneer Magnetics supplies type 5D200 SN# 416254 MSU SN# 60 Take Bricks MSU SN# 27, 60, 97, 98 to D-Zero. All 6 Bricks are now back from Pioneer Magnetics and have been taken to D-Zero. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 28-MAR-2003 Receive back from ASTEC PowerTec repaired brick MSU SN# 22 PowerTec SN# 1727 This was repaired under RA US3L206110 Take it to Fermi. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2-APRIL-2003 Brought to Fermi PowerTec brick MSU SN# 22 that we just got back from repair at ASTEC. Finish assembly and testing of PDM-09. PDM-09 has the following bricks in it: MSU SN# 25 is its -2.0 Volt brick MSU SN# 59 is its -5.2 Volt brick MSU SN# 27 is its -4.5 Volt brick MSU SN# 22 is its +5.0 Volt brick These are all ReFurbished bricks that have just recently come back from Pioneer Magnetics and the repaird brick from ASTEC. There are Capacitor Band-Aids on all the Pioneer Magnetics bricks. It was tested in the standard way and is now in the cabinet as a spare. Peter is returning to Russia on May 11th. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 6:9-MAY-2003 Pioneer Magnetics bricks MSU SN# 26 and 47 have had the final version MSU 6 Cap modification installed and have been run into the load box for more than 15 hours each. Ship these to Fermi as ready for use. Use supplies MSU #26 and #47 to rebuild PDM-13. PDM-13 now consists of: +5.0 Volt is MSU SN# 6 +5.055 V 0 mV @ 214 A -2.0 Volt is MSU SN# 70 with Capacitor Band-Aid -2.104 V 0 mV @ 161 A -4.5 Volt is MSU SN# 47 -4.608 V 0 mV @ 111 A -5.2 Volt is MSU SN# 26 -5.227 V 0 mV @ 100 A Bring Pioneer Magnetics bricks MSU #21, #71, and #72 back to MSU to receive the MSU 6 Capacitor Solution. MSU #71 and #72 are only usable with a capacitor band-aid. MSU #21 was the initial test bed for 6 capacitors. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 12-MAY-2003 Finally receive back from ASTEC PowerTec supplies SN# 1723 MSU #19 and SN# 1725 MSU #25. There were no sheets packed with these that said what was wrong. They did have new labels on the AC input terminal strip and new factory seals. Run each supply at 200 Amps for a couple of hours to get an idea that they are now OK. They are happy and ready to ship to Fermi. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 16-MAY-2003 Amanda has installed the MSU 6 Capacitor modification into Pioneer Magnetics supplies MSU #21, #71, and #72. These three supplies have all been run for more than 10 hours each, they are all happy and are being shipped to Fermi. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-MAY-2003 In PDM-21 replace the -4.5 brick MSU #95 with MSU #21 which just arrived from MSU and has the MSU 6 Capacitor modification installed. Take back to MSU Pioneer Magnets supplies: MSU# 95 (a 5V supply) and MSU# 54 (a 2V supply) to have their internal capacitors replaced with the MSU 6 Cap setup. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 28-MAY-2003 In PDM-15 replace the -4.5 brick MSU #67 with MSU #71 which arrived from MSU two weeks ago and has the MSU 6 Capacitor modification installed. Take back to MSU Pioneer Magnets supply: MSU# 67 (a 5V supply) to have its internal capacitors replaced with the MSU 6 Cap setup. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 7-JUNE-2003 Return Pioneer Magnetics 5V bricks MSU# 67 and MSU# 95 to Fermi. They have had the MSU 6 Capacitor modification installed. Return Pioneer Magnetics 2V brick MSU# 54 to Fermi. It has had the MSU 7 Capacitor modification installed. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 23-JUNE-2003 Pioneer Magnetics 2 V 325 Amp Model 2501B-2 Type 2D325 MSU# 79 has had its output filter bank of standard 6 capacitors replaced with new capacitors. It now makes 0 mV to 5 mV of ripple with a 150 Amp load instead of the 75 mV that it had before the capacitor replacement. The 6 new capacitors just bolt in with no problems. We used 4 long post capacitors where they were necessary and used 2 short post capacitors next to the output where they would fit. It may still be a good idea to run these with Capacitor Band-Aids to limit the per capacitor ripple current. This supply has been run for >12 hours and is ready to ship to Fermi. We had two un-opened Pioneer Magnetics 2 V 325 Amp Model 2501B-2 Type 2D325 power supplies. These have been opend and given MSU Numbers 99 and 100. They were then brought up on the variac and after things were stable they were run for >2 hours each under 150 Amp load. They look fine and do not have any ripple problems. They are ready to ship to Fermi. I believe that it is best to run these 325 Amp bricks with capacitor Band-Aids right from the start. 2 Pioneer Magnetics 5 V 200 A bricks were pulled from the CTFE test stand. They are MSU Numbers #84 and #85. They are ready to receive the MSU 6 Capacitor modifications. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3-JULY-2003 Two more 5 Volt 200 Amp Pioneer Magnetic power supplies Model 2926A-2 Type 5D200 have received the MSU 6 Capacitor modification. These had been running in the MSU Cal Trig Test Rack. They are MSU #84 and MSU #85. #84 and #85 are now ready to ship to Fermi. I know of no other problems with these 2 supplies and I believe that they were only ever used in the MSU Test Rack. The Test Rack is now using 2 more of the old stype Pioneer Magnetics supplies model PM2500A-2. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 19-SEPT-2003 From M112 pull the Tier 2-3 Power Pan that supplies the Tier 2 Crate in rack M111. This pan pulled from here is Tier 2-3 MM-3. MM-3 consists of: +5.0 Volt 50 Amp MSU SN# 93 15-SEP-93 -2.0 Volt 325 Amp MSU SN# 82 25-APR-91 -4.5 Volt 600 Amp MSU SN# 29 7-FEB-92 -5.2 Volt 10 Amp Linear From M110 pull the Tier 2-3 Power Pan that supplies the Tier 2 Crate in rack M109. This pan pulled from here is Tier 2-3 MM-2. MM-2 consists of: +5.0 Volt 50 Amp MSU SN# 91 15-SEP-93 -2.0 Volt 325 Amp MSU SN# 48 15-MAR-91 -4.5 Volt 600 Amp MSU SN# 16 11-JUN-91 -5.2 Volt 10 Amp Linear Pulled from these two Power Pans the -2 V bricks and take them back to MSU for rebuild. -2.0 Volt 325 Amp MSU SN# 82 25-APR-91 and -2.0 Volt 325 Amp MSU SN# 48 15-MAR-91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 25-SEPT-2003 Brick rebuild work at MSU. MSU SN# 82 25-APR-91 Pioneer Magnetics: Model 2501B-2 Type 2D325-0-4-6-S SN# 327464 Initial test: 1 Vpp ripple @ 20 Amp load 1.3 Vpp ripple @ 158 Amp Flipping 50 Amp load ON/OFF would trip the supply an ovp trip I assume. Replace the 6 output caps with 4 new tall post and 2 low post caps. Clean the fan and the insides. Tighten all high current connections. Final test: Ran for 5 hours at 158 Amp load. <50 mV ripple. 0 mV on the Fluke. No ovp trips when changing load. Set at 2.040 V with 158 Amp load. Ready to return to Fermi. MSU SN# 48 15-MAR-91 Pioneer Magnetics: Model 2501B-2 Type 2D325-0-4-6-S SN# 406189 Initial test: This supply would not start up. I assume it had an ovp trip at startup. Replace the 6 output caps with 4 new tall post and 2 low post caps. Clean the fan and the insides. Tighten all high current connections. Final test: Ran for 5 hours at 158 Amp load. <50 mV ripple. 0 mV on the Fluke. No ovp trips when changing load. Set at 2.040 V with 158 Amp load. Ready to return to Fermi. Both supplies ready to go back to Fermi with the intent of putting them back in their original Power Pans (see the 19-SEPT-2003 entry) and running with with external Capacitor Band-Aids. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3-OCT-2003 Put MM-2 and MM-3 back together with their original bricks (see the entry in this file from 19-SEPT-2003). Use external Capacitor Band-Aids on both the +5.0V and the -2.0V supplies, i.e. on both Pioneer Magnetics supplies. Put MM-2 back into rack M110 and put MM-3 back into rack M112. These are the racks from which these Power Pans were pulled on 19-SEPT-2003. Pull Power Pan MM-1 from the top of M106. MM-1 runs the Tier 2 Crate for eta 1:8 in rack M105. MM-1 consists of: +5.0 Volt 50 Amp MSU SN# 88 15-SEP-93 -2.0 Volt 325 Amp MSU SN# 34 25-APR-91 -4.5 Volt 600 Amp MSU SN# 10 18-DEC-90 -5.2 Volt 10 Amp Linear Pull MM-4 from the top of M109. mm-4 runs the Tier 3 in M107. MM-4 consists of: +5.0 Volt 50 Amp MSU SN# 92 15-SEP-93 -2.0 Volt 325 Amp MSU SN# 83 29-MAY-91 -4.5 Volt 600 Amp MSU SN# 11 11-JUN-91 -5.2 Volt 10 Amp Linear Return the two -2.0V bricks MSU SN# 34 and MSU SN# 83 to MSU for rebuild. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 9-Oct-2003 Bring back to Fermi rebuilt 2.0V 325A bricks MSU SN# 34 and 83. Use these to put MM-1 and MM-4 back together with their original parts. Put MM-1 back in M106 - it runs the Eta 1:8 Tier 2 in M105 Put MM-4 back in M108 - it runs the Tier 3 in M107. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 23-DEC-2003 At 23:51:22 on 23-DEC-2003 the -4.5 V brick in M104 Lower Tier 1 died. As there was no beam for the next "N" days we just shutdown the L1 Cal Trig. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 30-DEC-2003 Replace the failed power supply in M104 Lower Tier 1. This failed last week on Tuesday night late. It's -4.5 Volt brick stopped working. From M104 Lower Tier 1 pull out PDM-08 which consisted of: +5.0 V MSU SN # 28 7-FEB-1992 -2.0 V MSU SN # 5 27-SEPT-1988 old model 2500A-2 -4.5 V MSU SN # 19 9-NOV-1988 old model 2500A-2 <-- dead -5.2 V MSU SN # 24 9-NOV-1988 old model 2500A-2 The Pioneer Magnetics model 2500A-2 supplies are the ones that are no longer supported and we have not made an internal rebuild proceedure for this type, i.e. they are junk. But we appear to be low on spare 2 Volt 250 Amp bricks so save that one and junk the other two. Install in M104 Lower Tier 1 PDM-09 which consists of: MSU SN# 25 is its -2.0 Volt brick MSU SN# 59 is its -5.2 Volt brick MSU SN# 27 is its -4.5 Volt brick MSU SN# 22 is its +5.0 Volt brick Work with Victor Martinez while doing the Power Pan swap. He did most/all of the work and has copies of (and URL's to) the documentation for changing the Power Pan and for Cal Trig power control proceedures. Rebuild of PDM-08 +5.0 V MSU SN # 28 7-FEB-1992 -2.0 V MSU SN # 54 21-JAN-1992 MSU 6 Cap rebuild -4.5 V MSU SN # 84 7-JAN-1992 MSU 6 Cap rebuild -5.2 V MSU SN # 85 7-JAN-1992 MSU 6 Cap rebuild PDM-08 was run without load (but all these brick had recently been load tested). Then PDM-08 was labeled as tested ready to use and put in the Spare Power Pan cabinet. The remaining Spare Bricks currently at Fermi are: 2x 5V 600A Powertec MSU #19 and #25 3x 5V 200A Pioneer MSU #67, #72, #95 all MSU 6 Cap 3x 5V 200A Pioneer Refurbished MSU #97 and #98 and SN #416254 1x 2V 325A Pioneer MSU #79 MSU Cap +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 8-MAR-2004 Early Monday AM March 8th a site wide power glitch tripped off much of D-Zero. Sections that lost power included the MCH. When power was restored and the L1 Cal Trig restarted, the Lower M104 Tier 1 power pan's +5 Volt brick did not start up. There was not a panic to replace this power pan because we were not in store nor was there likely to be one soon. Victor Martinez and John Foglesong took care of the power pan replacement. PDM-09 was pulled and PDM-08 was installed. The bricks that made up PDM-09 when it was pulled out and that make up PDM-08 as it now operates in M104 lower T1 are listed in the entry above. Harry Weerts asked me not to repair the failed +5 Volt brick from PDM-09 via MSU. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 25-MAR-2004 Work on L1 Cal Trig Power Pan PDM-09 PDM-09 is the power pan from M104 Lower Tier 1 that had its +5 Volt brick fail after a power glitch on Monday morning 8-MAR-04. From PDM-09 pull the +5 V brick which was MSU SN# 22 from 7-FEB-92 (PowerTec #1727) and install MSU SN# 25 from 7-FEB-92 (PowerTec #1725). Now PDM-09 consists of: PDM-09 +5.0 Volt MSU SN# 25 7-FEB-92 -2.0 Volt MSU SN# 25 15-MAR-91 -4.5 Volt MSU SN# 27 15-MAR-91 -5.2 Volt MSU SN# 59 JAN-92 Operate PDM-09 without load and all looks OK. Put PDM-09 in the D0 Hall spares cabinet. Bring the +5 V PowerTec brick MSU SN# 22 back to MSU. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 22-APR-2004 Failure of M110 Lower Tier 1 power supply. Pull failed Power Pan PDM-12 from the L1 Cal Trig and install the spare Power Pan PDM-09. The brick that failed in PDM-12 was the +5.0 Volt brick. The 3 phase breaker tripped on PDM-12 when the +5 Volt brick failed. As PDM-12 was removed it consisted of the following: +5.0 Volt MSU SN# 17 14-FEB-92 <--- no output -2.0 Volt MSU SN# 41 15-MAR-91 -4.5 Volt MSU SN# 42 15-MAR-91 -5.2 Volt MSU SN# 39 15-MAR-91 The failed brick, +5.0 Volt MSU SN# 17 14-FEB-92 is PowerTec SN# 1726 Repair the L1 Cal Trig by installing PDM-09. See the previous log book entry for the setup of PDM-09. Repair PDM-12 by installing a new +5 Volt brick. Run PDM-12 without load and it looks OK. PDM-12 is now in the storage cabinet ready to use. PDM-12 now consists of: +5.0 Volt MSU SN# 19 17-FEB-92 <-- PowerTec SN# 1723 -2.0 Volt MSU SN# 41 15-MAR-91 -4.5 Volt MSU SN# 42 15-MAR-91 -5.2 Volt MSU SN# 39 15-MAR-91 Note that the new +5V brick, MSU SN# 19 17-FEB-92 PowerTec SN# 1723, is a brick that had been sent out for repair in January 2003. This is its first use since it came back from factory repair. At MSU we now have two PowerTec 5 Volt 600 Amp supplies that need repair. These are: MSU SN #22 from 7-FEB-1992 Failed 8-MAR-04 PowerTec SN #1727 MSU SN #17 from 14-FEB-1992 Failed 22-APR-04 PowerTec SN #1726 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 19-JULY-2004 M110 Tier 2 Power Pan blows its -4.5 V 600 A brick during a store. It went with a fight and tripped the wall breaker which also nocked off M112 Tier 2. Replaced by Victor and Tom between about 8PM and 11PM. Details to follow. 30-NOV-3-DEC-2004 Work on Power Pan MM-2 This Power Pan had it -4.5 Volt brick die on 19-JULY-2004 when it was operating in M110 Tier II. Pull from pan MM-2 its 600 Amp brick MSU SN# 16 from 11-JUNE-1991 PowerTec number 1264. Install in this pan -4.5V 600A brick MSU SN# 17 from 14-FEB-1992 PowerTec number 1726 which recently came back from factory repair. This pan is now ready for testing. 7:10-DEC-2004 Test Tier 2-3 Power Pan MM-2. It consists of bricks: 5V 50A #91 from 15-SEPT-1993 Pioneer SN# 438479 2V 325A #48 from 15-MAR-1991 Pioneer 406189 with MSU 6 CAP 5V 600A #17 from 14-FEB1992 PowerTec SN# 1726 just back from repair This Power Pan is now back in the cabinet as a spare. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 22-JULY-2004 Returned from repair two PowerTec 5 Volt 600 Amp supplies. Repair cost ?? MSU SN #22 from 7-FEB-1992 Failed 8-MAR-04 PowerTec SN #1727 MSU SN #17 from 14-FEB-1992 Failed 22-APR-04 PowerTec SN #1726 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 22-AUG-2004 Early AM and morning on 22 Aug there were 3 or 4 occurrences of M110B -2V causing an Alarm and pausing the run. Each time the run would start up just fine again with no delay. The first 1/2 of the afternoon M110B -2V ran just fine so I thought that it could make it through the next 12 hours until the shutdown started. Soon after the new store went in at about 3:30 PM this supply died. Tom Regan came in to swap it. Fall 2004 Shutdown starts 4AM 23-AUG-2004 i.e. 7 hours after this power supply replacement. 7:10-DEC-2004 Start work on Power Pan PDM-19 which had its -2V brick die intermientently on 22-AUG-2004 while it was running Tier 1 in rack M110. PDM-19 consists of: +5V 600A #23 7-FEB-1992 PowerTec SN# 1722 -4.5V 200A #38 15-MAR-1991 Pioneer SN# 398980 -5.2V 200A #56 15-MAR-1991 Pioneer SN# 398962 -2V 250A #55 23-JAN-1992 Pioneer SN# 416247 Pull the -2V brick and take it apart. Replace the 680 pFd mica feedforward capacitor C122 with a 500pFd 3 KV cap. Put everything back together and run it for 1/2 hour. All looks OK so PDM-19 is back in the cabinet as spare. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 31-AUG-3-SEPT-2004 Returned 600 Amp bricks #17 and #22 to Fermi. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24-JAN-2005 A strip of the L1 Cal Trig display had started to look funny to the shifters. Norm called us. This strip was TT eta +13:+16 TT phi 17:32. Looking at a dump of the raw readout data it looked funny (all zeros or f's or something) A guess was that the ERPB's had lost their minds in this crate. ReConfiguring them made the raw readout data look OK. Looking at the power supply display, the +5 Volt for this Tier 1 crate looked noisier than any other Tier 1 +5 Volt. Theory is that a drop out on the +5 V caused the problem. Because there was no beam we took the decision with Norm to replace the Lower Tier 1 Power Pan in rack M109 which is eta +13:+16 phi 17:32. Norm worked with John Foglesong and Victor and did the swap. From M109 Lower Tier 1 they pulled out PDM-21. Into M109 Lower Tier 1 they installed PDM-13 12:15-FEB-2005 Repair of PDM-21 which was pulled from M109 Lower Tier 1 on 24-JAN-2005. PDM-21 consisted of: PDM-21 +5.0 Volt MSU SN# 5 -2.0 Volt MSU SN# 45 15-MAR-91 -4.5 Volt MSU SN# 21 7-JAN-92 MSU_6_CAP -5.2 Volt MSU SN# 46 15-MAR-91 Replace the +5.0 Volt 600 Amp brick MSU SN# 5 with MSU SN# 22 which is recently back from repair. Test without load for 20 minutes. PDM-21 now consists of: PDM-21 +5.0 Volt MSU SN# 22 7-FEB-92 -2.0 Volt MSU SN# 45 15-MAR-91 -4.5 Volt MSU SN# 21 7-JAN-92 MSU_6_CAP -5.2 Volt MSU SN# 46 15-MAR-91 Bring the bad +5.0 Volt 600 Amp brick MSU SN# 5 back to MSU. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 8:11-MAR-2005 Bring to D-Zero Powertec power supply SN #1264 MSU #16 11-JUNE-1991 which is just back from factory repair. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 27-MAR-2005 failure in the L1 Cal Trig Power Supplies. - At the conclusion of the Store 27-MAR-2005 Sunday afternoon John Anderson and Victor Martinez were ready to change the supply M109-C (M109 Lower Tier 1). They pulled out Power Pan PDM-13 and installed PDM-21 PDM-13 had been running in M109 Lower Tier 1 only since 24-JAN-2005. This swap went OK and doing the normal test run for 5 minutes with just running the new PDM-21 installed in M109-C (Lower Tier 1 M109) everything looked OK. - But when the full system was restarted there was now a new problem with the -5.2 Volt supply in M105-B (M105 Upper Tier 1). The M105-B Upper Tier 1 M105 Power Pan was replaced. Power Pan PDM-10 was pulled from M105 Upper Tier 1 and Power Pan PDM-19 was installed. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 29-MAR-2005 to 1-APR-2005 Repair of PDM-13 which was pulled from M109 Lower Tier 1 on 27-March. At the time it was pulled, Tier 1 PDM-13 consisted of: +5.0 Volt 600A MSU SN# 6 -2.0 Volt 250A MSU SN# 70 with Capacitor Band-Aid -4.5 Volt 200A MSU SN# 47 -5.2 Volt 200A MSU SN# 26 There is one interesting point about this failure: - The brick that dipped low Saturday afternoon, the -4.5V brick, is a fancy MSU rebuilt 6 capacitor brick. So far these MSU rebuilt bricks have given no trouble. Repair PDM-13 by installing MSU SN #72 as its new -4.5 Volt brick. Test PDM-13 +5.0 Volt Load = 210A Output = 5.055V 0 mV AC -2.0 Volt Load = 105A Output = 2.106V 0 mV AC -4.5 Volt Load = 107A Output = 4.611V 0 mV AC -5.2 Volt Load = 101A Output = 5.229V 0 mV AC Power Pan PDM-13 now consists of the following: +5.0 Volt 600A MSU SN# 6 -2.0 Volt 250A MSU SN# 70 with Capacitor Band-Aid -4.5 Volt 200A MSU SN# 72 -5.2 Volt 200A MSU SN# 26 It is a spare in the power supply cabinet. PDM-10 was pulled from M105 Upper Tier 1 on 27-March. At the time it was pulled, Tier 1 PDM-13 consisted of: +5.0 Volt 600A MSU SN# 13 11-JUNE-1991 -2.0 Volt 250A MSU SN# 29 15-MAR-1991 with Capacitor Band-Aid -4.5 Volt 200A MSU SN# 50 15-MAR-1991 with Capacitor Band-Aid -5.2 Volt 200A MSU SN# 30 15-MAR-1991 with Capacitor Band-Aid Test PDM-10 under the toaster load box: +5.0 Volt Load = 209A Output = 5.056V 0 mV AC -2.0 Volt Load = 108A Output = 2.096V 1 mV AC -4.5 Volt Load = 110A Output = 4.609V 0 mV AC -5.2 Volt - no output - Repair PDM-10 by removing brick MSU SN# 30 and installing MSU SN# 95 for its -5.2 Volt supply. Now retest PDM-10. +5.0 Volt Load = 213A Output = 5.056V 0mV AC -2.0 Volt Load = 108A Output = 2.103V 0mV AC -4.5 Volt Load = 109A Output = 4.608V 0mV AC -5.2 Volt Load = 107A Output = 5.229V 0mV AC The repaired PDM-10 now consists of the following and is stored in the spare power pan cabinet. +5.0 Volt 600A MSU SN# 13 11-JUNE-1991 -2.0 Volt 250A MSU SN# 29 15-MAR-1991 with Capacitor Band-Aid Mallory -4.5 Volt 200A MSU SN# 50 15-MAR-1991 with Capacitor Band-Aid Cornel-D -5.2 Volt 200A MSU SN# 95 7-JAN-1992 MSU 6 Cap ReBuild Spare bricks at Fermi after all the above work was completed: Powertec 5V 600A MSU SN #16 11-JUNE-1991 # just back from repair in early March 2005. Pioneer 5V 200A MSU SN #97 7-JAN-1992 # Factory Refurbished Pioneer 5V 200A Factory SN #416254 ?-?-1992 # Factory Refurbished Pioneer 5V 200A MSU SN #67 7-JAN-1992 # MSU 6 Cap ReBuild Pioneer 5V 200A MSU SN #98 7-JAN-1992 # MSU 6 Cap ReBuild Pioneer 2V 325A MSU SN #79 25-ARR-1991 # MSU 6 Cap ReBuild Bricks returned to MSU: 5 Volt 200A MSU SN# 30 15-MAR-1991 no output 5 Volt 200A MSU SN# 47 MSU 6 Cap ReBuild may need feed forward capacitor replaced PowerTec 5V 600A PowerTec SN# 728 MSU SN# 5 back from factory repair in late March still does not work right. See the log book for 29-MAR-2005 : 1-APR-2005 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++