6509 Power Supply Output Failure

I have a 6509 chassis w/1 Sup720 and dual 3000W power supplies. When I power it on it runs for about 3-5 minutes and the power supplies shutdown. The red "Output Failure" light comes on. They are connected to 110V/20Amp circuits. These are the same circuits that were used with a previous set of power supplies (lower wattage). I removed everything from the chassis except for the fan tray and the sup module to reduce the power demand. Same result. Thoughts?

Hi
Have u tried running the box with single power supply instead of both supplies ??
Also are u getting the LED status on both the power supply unit ??
You can also use show environment power,show environment,show power commands to check out the power supply status.
for more info on power supply management with 6500 do check this link out..
http://cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a008015bfa8.shtml
regds

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DesignJet 1050C Delta power supply board failure (DPS-386AP)

Our geek club was given a 1050C designjet plotter which we would like to repair to put in service.
It appears that the standby/sense power (-15vdc) is leaving the psu board to the main board, and the power switch is grounding out to trigger the Delta power supply board to come on.
However, there is no DC voltage from the Delta PSU board. All lines are dead.
I tried bringing it up with the main cable disconnected from the motherboard, checking to see if something was loading down / shorting the power supply, but it still does not come up.
I'm starting to go through the process of figuring out what failed, but was hoping that maybe there is a common problem that I can look for.
Caps look like they are from reputable vendors, and none of them are swollen nor is electrolyte coming out of any of them.
Anyone have any knowledge of failures on this board?

This forum is focused on consumer level products. For the Designjet you may have better results posting in the HP Designjet forum here.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
If your problem is solved please click the "Accept as Solution" button ------------V
If my answer was helpful please click the "Thumbs Up" to say "Thank You"--V

IMac Power supply PSU failure due to UPS type

I am posting this to aid anyone else who has suffered a similar issue as it took me some time to rectify and it was difficult to find evidence of proof.
Preamble:
My late 2012 27" iMac began powereing off, sometimes after a few days sometimes after 20 minutes. It gradually got worse until it would not power on at all.
I had tried all possible fixes I could including - reset SMC and NVRAM, reinstalling Mavericks, running from an external HDD with a cloned OS, running with a fresh Mavericks install on a USB stick.
Also ran Apple Hardware tests and used Micromat Techtool 7 with no problems apparent.
Also tried running when moved from my desk and plugged into a different socket in the house (this point is especially relevant).
Repair attempts:
Apple (via Amsys) changed the logic board. This worked for a day then the fault reoccurred. Apple (Apple store this time, Amsys scratched the aluminium housing previously so I avoided them) then changed the PSU.
This fixed the fault and the iMac ran with no problem (apart from audio missing - another discussion perhaps!), BUT when I moved the iMac back to its original position on my desk (having been plugged in the aforementioned other socket) it would not power on again. I then realised it was the UPS and iMac were not playing nicely. If I plugged the iMac into the UPS when the UPS was already powered on, the iMac would work until the next random power down. I have used the UPS with everything else including the iMac for over a year so didn't suspect it. However, I do have the occasional brownout (power dip) and power cut so it has been utilised for the iMac a handful of times without issue.
Solution:
I have now researched and concluded the iMac PSU (at least the Energy Star 5.0 onwards compliant ones, not sure about older iMacs) need a Pure Sine Wave UPS otherwise the PSU may be damaged as mine was. It may not happen until the UPS is called upon either. In fact any active PFC PSU could be affected. I could not find this out from Apple or APC (my UPS manufacturer), only with some reasearch and my own knowledge of electrics. It seems that not all iMacs are as sensitive or for other reasons this fault will not occur with a similar set-up to mine, but I am now confident that this was the cause. Please note I do not yet have my own Pure Sine Wave UPS and I am now running without one for the time being until I buy a Cyberpower CP1300EPFCLCD or similar.
Some of my references are below:-
http://www.tomshardware.com/reviews/apc-smt1500-cyberpower-cp1500pfclcd-tripp-li te-smart1500slt,2785.html
http://www.primegrid.com/forum_thread.php?id=5553
http://forums.macresource.com/read.php?1,1196487,1197254

Welcome, Cubber;
yes, there are some people complaining here about power supplies -
I'd contact Apple and tell them your problem. Being hit twice by the same failure is not nice. Usually they cooperate - have a look at just this post her:
http://discussions.apple.com/thread.jspa?threadID=673758&tstart=0
Please, keep us informed how it ends.
Thomas

Cisco Power Supply error

What does out of regulation limits means ?
1 red "OUTPUT FAIL," normally is off but illuminates when power supply outputs are out of regulation limits
Thanks
Rosa

Hi,
Seet this:
LED
Meaning
INPUT OK
AC-input power supplies:
•Green—Source AC voltage is OK. (Input voltage is 85 VAC or greater.)
•Off—Source AC voltage falls below 70 VAC, is not present, or the PEM is turned off.
DC-input power supplies:
•Green—Source DC voltage is OK. (-40.5 VDC or greater.)
•Off—Source DC voltage falls below -33 VDC or is not present at the PEM.
FAN OK
Green—Power supply fan is operating properly.
Off—Power supply fan failure is detected.
OUTPUT FAIL
Red—Problem with one or more of the DC-output voltages of the power supply is detected.
Off—DC-output voltages within acceptable margins.
Note For proper operation of the OUTPUT FAIL LED, systems with single power supplies must be configured with a minimum of one fan tray and one supervisor engine. Systems with dual power supplies must have a minimum configuration of one fan tray, one supervisor engine, and one additional module. Failure to meet these minimum configuration requirements can cause a false power supply output fail signal.
This is for 6500 switches but apply to almost all models.
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/hardware/Chassis_Installation/Cat6500/0apwsply.html#wp1025570
Hope this helps.

Replacement Sawtooth G4 power supply - Specs?

Hello!
Well, a couple of months back, I discovered that the power supply fan in my 400mhz AGP (Sawtooth) G4 had stopped running. My interim fix? A powerful case fan, attached via Velcro to the outside of the case (sucking air out of the G4) with the power cable running through an empty PCI slot door. The open door and edges of this fan are sealed with strips of duct tape...
Needless to say, this is not an optimal way to run the G4. After some looking online, I discovered that it's possible to buy refurbished/used G4 power supplies for around $90, but I'd rather not spend that much on a used power supply, particularly since this is actually the second power supply fan failure on this G4 - the first when the G4 was only a year old - so I'm not thrilled about buying the same model Apple PSU!
On a visit to my local Fry's store, I noticed they had a large assortment of power supplies, and that they seem to be pretty much the same as the one inside the G4 now - makes sense.
-My basic question is, can I use one of these basic PC power supplies in the G4? What, specifically, do I need to check to ensure that I don't blow anything out?
-Also, is the "power plug" on the G4's logic board a standard configuration, or is it wired differently than the ports on other PC logic/mother boards?
-The PSU inside the G4 says that it has a maximum output of 237 Watts and 32 Amps. I assume I need to purchase one that's very similar in output - how large of a difference between this PSU's power rating and the new PSU's rating is too large?
-Finally, what kind of screwdriver do I need to pull the existing PSU out of the G4?
Again, I have a 400 mhz "Sawtooth" PowerMac G4 from 1999, with a 16 MB AGP Rage 128 video card, and many upgrades. (DVD burner, more RAM, new HDDs, USB 2 card)
Thanks a bunch,
-Dan

According to the linked Forum Topic, the SilenX brand fan (80mm x 25mm = 80mm square x 25mm thick) plugged directly into the power supply's circuit board without splicing wires. Even if you need to splice wires, you just leave enough of the original fan's wires intact by cutting them off close to the fan itself, then joining them to the identical wires on the new ones. Any store having electronic supplies will probably have the mini-wire connectors, that you slide over the spliced wires and crimp in place. Electrical tape doesn't hold up as well in hot environments. Don't leave any excess wire length laying about inside the power supply, touching some of the hot components. Use a small nylon wire tie to gather the excess wire together, and hold away from the circuit board's components. The power supply housing has two halves, that can be separated enough to access the fan, after removing some phillips machine screws. A Google search may provide a page with photos of the procedure. The case fan is 120mm square x 25mm thick. If you want to use the same connection point as the original, you may need to cut the wires close to the original fan and splice them to the new ones. Otherwise, those fans typically have a standard molex power connector, that readily plugs into an available power lead. When buying replacement fans, be sure to get ones that provide a high airflow (CFM rating) for the given speed (RPM) and noise level (db rating). The noise level is important, because even a new fan can be loud.

How do I correctly time while loops using SCPI and VISA/Ethernet communication to send DC current Values to a Power supply?

I'm rather new to using labview and I having an
issue with a test Data Aquisition lab I'm trying to setup using a
Keithley 6221 AC/DC current source and a basic PCI M-series NI-DAQmx.
First of all, I'm looking to update the current value on a power
supply at a rate of atleast 10Hz and I'm using SCPI commands and VISA
communication through ethernet to do so. Attached below is the VI I
have written.
The issue I'm having is this:
My VI will
loop through the values fine in software, or so it seems. I am unable
to get the Power supply to update sequentially if I don't set my loop
delay to anything greater than 130ms. If I try to run the loop faster
it starts skipping values instead of counting 1,2,3,4,5,1,2,...etc. it
goes 1,2,4,5,2,4,1,2 on the display of the power supply and my DAQ unit
also skips these values so I know that the number just isn't getting
read to the Power supply in time. I was wondering if this was due to
my sloppy programming or if it is a hardware issue, my computer or the
method of communication to the power supply? Is this due to the fact
that I'm using ethernet and VISA communication? Is there a faster way
to communicate or is GPIB faster? Any input at all would be extremely
helpful.
On a side note: Right now I'm using an pre-determined
array of values that I can update on the fly but in the future this
with be put into a closed-loop control system. The value for the
power supply output will be determined by the loop and sent that way.
Attachments:
basic DC loop 6221 Keithley.vi ‏145 KB

Also, one of the string constants is NOT set to '\' Codes Display. Here is an alternative method of calculating the index. I removed the DAQ and VISA stuff since I could not run it.
Lynn
Attachments:
basic DC loop 6221 Keithley.2.vi ‏16 KB

Designing variable output power supply

hi
could anyone help me out in designing variable output power supply ?
as i am new to this please post the circuit and also the step by step procedures in developing the circuit.

Hi rckz,
The link below has an example of a variable power supply.
http://www.google.ca/imgres?imgurl=http://howcircuits.com/downloads/circuits-and-diagrams/power-supp...
You can try to find the components in Multisim by right-clicking and going to Place Component. You can look through the database and place them on the schematic and then wire them as shown in the schematic.
Hope this helps.
Regards,
Tayyab R,
National Instruments.

The output of a power supply in labview using a Magna Power LXI over RS232 to simulate a periodic voltage.

How can I toggle the output of a power supply in labview using a Magna Power LXI over RS232 to simulate a periodic voltage? Any help would be apreciated?

LXI is Ethernet communication.
Does the power supply have an RS232 port?
Are you looking for an RS232 to Ethernet (LXI) Converter
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=rs232%20to%20ethernet%20ip
But to simulate a periodic voltage you need to send the SCPI "Source" command to the power supply in a loop.
Changing the Voltage setting in periodic value.
How fast of a periodic voltage do you need?
You may be limited to how fast LabVIEW, Windows and your power supply can respond to commands.
Use VISA writes. It is the same for LXI as it is for RS232. The LabVIEW code would be the same.
After you select the corrent VISA Ref, either a com port or an IP address, LabVIEW does not care if it is LXI or RS232.
From a Magna manual I found
Command Syntax
[SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude] <nrf+>
[SOURce]:VOLTage[:LEVel]:TRIGgered[:AMPLitude] <nrf+>
Examples
VOLT 200
VOLTAGE:LEVEL 200
VOLTAGE:LEVEL:IMMEDIATE:AMPLITUDE 2.5

Anyone having Power Supply Failures with 4305's

For some reason over the last 6-8 weeks I am getting multiple power failures on my 4305DMPs, replacing the power supply/wall plug brings everything right back but I'm wondering if there is a bigger problem.
All DMP's are connected to APC power bars with Surge Protection, and the LCD Screen continues to work fine. The DMP will just quickly flicker both Red and Green Lights, and remain unresponsive. We have tried cleaning teh contacts on the power supply but have had no luck.
I have had to swap 10-12 of them now, these have been working with no issues in the field for over 3 years.
I guess I am just wondering if anyone else has had this problem, a search on here didn't reveal anything.
Thanks,
Jh

I haven't heard anything about this on the 4305, but just pointing out that this is a 2-year old post.
We're using some Linksys POE -> 5V splitters and they've been humming away for years. I listen to feedback about reliability, but it would be helpful if a specific part # / manufacturer on the brick were identified along with any complaints about it.
As far as replacements, be sure to use the right specifications, other DMPs operate off of 12VDC but the 4305 uses a 5-volt adapter.
Input voltage: 5V
Input current: 3 ADC
Power consumption: Peak: 12W; average: 5W

Time Capsule power supply failures

Has the chronic Time Capsule power supply failure after about 18 months use been fixed in the new Time Capsules being sold today? I had a 500GB Time Capsule I recently had to scrap because of this.

It is always possible there is another fault.. to shut down after a minute.. if you are relating that correctly.. is unusual.. I would power the board from 5v 2A supply.. that will quickly show if the issue is your power supply or not.
The TC is definitely in need of more cooling but I would hate to suggest doing a major modification until it runs out of warranty. It is possible to improve the existing cooling with a bit of smarts.. a laptop (or netbook size) cooler to which you can seal the TC.. this is the tricky bit.. you need to allow a space underneath though.. perhaps 10mm.. and seal just the edge of the TC so it allows the cooler to draw air through the TC. That will work without modifying it. But you will need to make up a proper spacer and gasket.
I see pictures of various fans mounted on the top.. they are next to useless. Cooling the outside plastic will achieve only the tiniest improvement in heat transfer due to the thick plastic (insulating) top.. if it was made out of metal maybe it would do something.
Sounds like what is also needed is a different heat sensor that would start the fan at a lower temperature.
It is not the sensor that is the issue. The TC includes a proper fan controller. It is simply set too high.. and so it doesn't turn on.
If you want to break into the TC.. you can solder in a console.. and use serial to USB adapter.. these are very cheap.. the soldering in is tricky.
See the bottom of this page.
http://sites.google.com/site/lapastenague/a-deconstruction-of-routers-and-modems /apple-time-capsule-repair/new-issue-with-a1355-gen-3-tc
The envstat.. will show temp.
This command will turn on the fan.
i2cctl w 0x18 0x00 11010100

Ciscoview Cisco 6509 VSS power supply LED indicators incorrect

Hello all
i am experiencing the following problem.
In the Ciscoview, the LED indicators of the power supply of Cisco 6509 VSS are represented incorrectly. All power inputs and fans are okay actually. however, in the ciscoview, there is only 1 green "INPUT OKAY" for each power supply. And "FAN OKAY" LEDS are off on Active chassis.
Any assistance would be greatly appreciated.
LMS 4.1
IOS Version 12.2(50)SY1
Device Package:
38.
Cat6000
12.0
Cat6000 Package
39.
Cat6000IOS
37.0
Cat6000IOS Device Package

Check the PS at the back, is there a light? If there's no light, then you need to RMA the PS as it could be faulty.
If there's a light on the PS, then you need to RMA the switch.

Troubleshooting power supply failures

I'm branching out this thread as a continuation of <http://discussions.apple.com/thread.jspa?threadID=2418851> since the topic has evolved and the subject is no longer accurate.
I have a 2.1GHz iMac G5 (iSight) that does not boot reliably and sometimes goes into deep sleep and can't be awakened. I have ruled out software and RAM issues, leaving power supply and logic board as the likely suspects. I'm leaning towards the power supply. I'd like more info on the symptoms of power supply failures and see if my symptoms are consistent with it.
*Reasons to believe it's the power supply:*
• symptoms are consistent with the computer not getting enough power.
• it's a more common failure.
• Computer has 4+ years of continuous usage.
• the left side of the vent had been warm lately (that fan pushes air over the HD then the PSU)
*Reasons to believe it's the power supply:*
• visual inspection showed no damaged capacitors (although there could be hidden damage)
• in my previous experience with power failures, the Mac shut down completely, not half way.
*Reasons to believe it's the logic board:*
• problem triggered by adding RAM (although that's not the only trigger and removing the RAM didn't • instantly solve the issue. Timing may have been a coincidence)
*Reasons to believe it's not the logic board:*
• It passed all the Apple hardware and Techtool Pro tests.

FYI, you can access them in /private/var/logs, but you need to use a utility to show invisible files first.
The last system.log entry is
May 8 13:19:33 eric kernel[0]: IOPMSlotsMacRISC4::determineSleepSupport has canSleep true
So it looks like it went into sleep normally, but couldn't wake up or shut down without recording any more log entries.
windowserver.log had a few errors 20 minutes earlier:
May 08 12:56:56 [66] Server is starting up
May 08 12:57:00 [66] CGXMappedDisplayStart: Unit 0: boot screen
May 08 12:57:00 [66] CGXMappedDisplayStart: Unit 0: no display alias property
May 08 12:57:00 [66] CGXMappedDisplayStart: Unit 1: no display alias property
May 08 12:57:00 [66] AGCAttach: Couldn't find any matches
May 08 12:57:00 [66] CGXPerformInitialDisplayConfiguration
May 08 12:57:00 [66] Display 0x4271440: MappedDisplay Unit 0; Vendor 0x610 Model 0x9c51 S/N 0; online enabled built-in (0,0)[1680 x 1050], base addr 0xb0018000
May 08 12:57:00 [66] Display 0x3f003d: MappedDisplay Unit 1; Vendor 0xffffffff Model 0xffffffff S/N -1; offline enabled (2704,0)[1 x 1], base addr 0xb0018000
May 08 12:57:03 [66] GLCompositor: GL renderer id 0x00021802, GL mask 0x00000003, accelerator 0x0000281b, unit 0, caps 0x00000003, vram 128 MB
May 08 12:57:03 [66] GLCompositor: GL renderer id 0x00021802, GL mask 0x00000003, texture units 8, texture max 2048, viewport max {2656, 2656} extensions 0x0000000f
May 08 12:57:22 [66] kCGErrorFailure: CGXDisableUpdate: UI updates were forcibly disabled by application "Finder" for over 1 second. Server has re-enabled them.
May 08 12:57:22 [66] kCGErrorFailure: Set a breakpoint at CGErrorBreakpoint() to catch errors as they are returned
fsck_hfs.log shows the disk is fine:
/dev/rdisk0s3: fsck_hfs run at Sat May 8 12:56:40 2010
/dev/rdisk0s3: fsck_hfs run at Sat May 8 12:56:55 2010
/dev/rdisk0s3: ** /dev/rdisk0s3 (NO WRITE)
/dev/rdisk0s3: ** Root file system
/dev/rdisk1s3: fsck_hfs run at Sat May 8 12:56:55 2010
/dev/rdisk1s3: ** /dev/rdisk1s3 (NO WRITE)
/dev/rdisk1s3: QUICKCHECK ONLY; FILESYSTEM CLEAN
/dev/rdisk1s3: fsck_hfs run at Sat May 8 12:57:06 2010
/dev/rdisk1s3: ** /dev/rdisk1s3 (NO WRITE)
/dev/rdisk1s3: QUICKCHECK ONLY; FILESYSTEM CLEAN

Power Supply Restrictions in 6509 Chassis

Hi,
I've been trying to find some information on Power Supply configurations in 6500 series chassis. I've read this very useful document
http://www.cisco.com/en/US/products/hw/switches/ps708/products_installation_guide_chapter09186a008020e0d3.html#wp1030022
but it doesn't answer one question. Perhaps someone here can help?
When running a 6500 series chassis (in my case, a 6506 or 6509) on a single PSU, are there restrictions on which position it must occupy?
As part of a migration project we hope to re-deploy some PSUs but downtime is not an option. Our proposed strategy means running off a single PSU in slot 2 for a short while (a few hours).
I have come across equipment from other vendors where if only a single supply is installed, there are restrictions on which slot it must occupy.
Thanks in advance for any help.
Adam

Hi Adam,
AFAIK, There is no such restriction on Cisco Chassis. You can use it in any PS slot.
http://www.cisco.com/en/US/products/hw/switches/ps708/products_data_sheet09186a00800ff916.html
HTH, Please rate if it does.
-amit singh

Power Supply failure...

I just had a power surge that killed my powe supply for the for Linksys Compact Wireless-G Broadband Router WRT54GCC. I tried to live chat for help with Linksys but the rep disconnected me after waiting for about 30 minutes. (Sorry...not relevant info, but just me blowing off steam)
Anyhow, does anyone know if (and where) I can find a replacement for it? Couldn't find anywhere on the Linksys site where you can order replacement parts. Does this mean I'm SOL and just need to go an pick up a new router?

Hi guys, I had two of the power supplies fail on the WRT54g's at roughtly the same time. Mine both showed low voltage output (measured at about 1v). So I dutifully took them apart and found two of the capacitors tops were bulging. Apparently this was a common problem due to a bad batch of electrolytic capacitors produced around 2000 - 2002.
So anyway the two capacitors are a 450uf 16v and a 100uf 25v and cost the princely sum of 50p from Maplin or RS components. They are easy to remove and resolder. You'll need a soldering iron, and a multimeter would be a good idea to test the voltages before and after. You'll also need a big flat bladed screwdriver to prise open the case. Hey presto I now have two working wireless routers!!!
Drop me a line if you'd like to know more. You can always just buy another power supply for about £11 but where is the fun in that! Much more satisfying to repair the old one. If you do buy a new one make sure it is 5volts and can handle 2 Amps
Cheers Andy
Also check out this site for tips on repairing power supplies and other electronic stuff
http://www.electronicrepairguide.com/power-supply-repair.html?gclid=CKyT8-LSpJQCFQyI1Qod6WDmtg
Message Edited by Andy Le May on 07-04-2008 05:10 AM

Disabling output of a power supply and enabling it

I need to contol the ouput of my power supply when my mulitmeter reaches a certain voltage or drops below it. My question is how do I connect the multimeter to the power supply so that the power supply will be on until the mulitmeter reaches X voltage then turns back on when it goes below X voltage.
My Equipment:
1.HP 34401A Multimeter
2.HP E3631A Power Supply
Here is a picture of the block diagram. The Multimeter is on the left and the power supply is on the right. I have also attached the file to this post.
Attachments:
Agilent 34401 & Agilent E363X Connection.vi ‏27 KB

Here is how I would start. You will need to do more to this but should give you an idea of how to get started. This was a very quick and dirty way of using what you had and making it do more.
You will need to set the limits on the in trange and you will have to hook the ture false back up to the set output.
Tim
Johnson Controls
Holland Michigan
Attachments:
Agilent 34401 & Agilent E363X Connection.vi ‏38 KB

6509 Power Supply Output Failure

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