UPS problem
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- Re: UPS problem
UPS problem
23-10-2013 10:35 PM
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I little while ago it started saying there was a problem with the battery - it wouldn't fully charge. Fair enough I've had it some years so I bought a replacement battery. Fitted it and according to the Powerchute software it is now taking the full charge and the estimated battery time is 45 minutes - I thought all was well again.
Today the house RCD tripped (I don't know why) and the PC died instantly.
I have tried testing the UPS with just a power strip with a neon indicator light, when power to the UPS is cut power to all the sockets on the UPS - it's just not providing backup power at all. The Power On light on the UPS stays on and it emits the 30 second interval annoying beeps to say it's in backup mode.
Any ideas?
Edit: I did confirm that the old battery was dead - I tried putting it on a standard 12V battery charger after I removed it - it wouldn't take any charge.
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: UPS problem
24-10-2013 2:12 AM
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"In The Beginning Was The Word, And The Word Was Aardvark."
Re: UPS problem
24-10-2013 7:16 AM
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Re: UPS problem
24-10-2013 11:47 AM
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Others will go for years without so much as a hiccup.
Re: UPS problem
24-10-2013 11:57 AM
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Quote from: picbits Measure the voltage across the battery while the UPS is operating. If it drops suddenly then it could just be another duff battery - it is not unknown for SLA batteries to be kept on a shelf for years before being sent to a customer.
I've got a 12V cold box that plugs in to a cigarette lighter socket - I think I'll take the battery out and try that rather than mess about when the UPS is live.
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: UPS problem
25-10-2013 1:34 PM
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Unless of course you do have another fauly set of batteries!
Let me know how that goes...
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
Re: UPS problem
25-10-2013 2:25 PM
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jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: UPS problem
25-10-2013 2:39 PM
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Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
Re: UPS problem
25-10-2013 2:43 PM
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It sounds like the unit is dead - but he's sending me a procedure to do a manual recalibrate.
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: UPS problem
25-10-2013 2:52 PM
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Quote Follow these steps to do a proper manual calibration on your APC UPS:
1. Battery must be at 100% capacity when the Runtime Calibration is initiated/started. (charge the UPS for 24hours prior)
2. The UPS must have 30-34% load on it during the calibration (Constant load, try: lamps, computers, monitors. Measure load % by PowerChute)
3. Disconnect the serial/USB comm cable from the UPS (you don’t want PowerChute to shut down equipment)
4. The battery must be discharged completely (unplug UPS from wall outlet, let the UPS to shut off completely due to a discharged battery).
5. Remove the attached load (ie – lights, computers)
6. Let the UPS charge for 8 hours while OFF (plug back into utility power, press OFF button when UPS turns ON)
7. Turn on UPS (run time should now be accurate)
Did you still have the serial cable connected ( to PowerChute ) when the power dropped ?
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
Re: UPS problem
25-10-2013 4:40 PM
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I'm rapidly reaching the conclusion it's dead!
Edit: I've just looked to see when I bought this unit - September 2006. The first battery did well to last this long!
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: UPS problem
25-10-2013 5:18 PM
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Sounds like it might be :(. I had hoped that it was PowerChute thinking the battery was dead and that disconnecting the serial would stop that. I'll ask another engineer on Monday when I'm back in the office, I know he's changed a few battery packs in APC SMart UPS's in his time.
Quote I'm rapidly reaching the conclusion it's dead!
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Re: UPS problem
26-10-2013 9:40 AM
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How far do you think I should run it down before putting it back in the UPS and trying again to make sure the UPS is charging the battery?
Edit: Looking at http://www.mmbalmainauto.com.au/PDF/State_of_charge_12_volt_batteries.pdf I think I need to increase the load.
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: UPS problem
26-10-2013 9:57 AM
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12v batteries also have something called "surface charge" which confuses readings unless they have been under a load for a certain amount of time.
A car headlight bulb is a good load - they should last around an hour on a fully charged 7ah battery although be warned, they get *very* hot.
Re: UPS problem
26-10-2013 10:12 AM
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jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
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