UPS Issue

TheMan3150 · 04-02-2009, 09:56 AM

I have a Best Technologies FD7KVA uninterruptible power supply that is switching to battery power at seemingly random times for various lengths of time. Has anyone had this kind or any ups with the same problem? The frequency, battery voltage, input and output voltage have all been tested and are at the right levels. The batteries are one year old. The current draw is only 4 amps at 120 volts. Any ideas would be greatly appreciated.

dai · 04-02-2009, 10:38 AM

what are you running
video card
cpu
m/board
ram
power supply
brand
wattage

check the listings in the bios for voltages and temperatures and post them

TheMan3150 · 04-02-2009, 10:48 AM

This ups powers a few computers but is not interfaced with any of them.

dai · 04-03-2009, 10:11 AM

i was thinking along the lines the psu output is varying causing the ups to come into play

TheMan3150 · 04-03-2009, 10:48 AM

do you mean the input to the UPS or the draw from the computers power through the ups?

dai · 04-03-2009, 10:54 AM

if the other computers don't have the problem
i was thinking the psu is going and causing it to switch to the ups when the line drops to far and supplies insufficient power

TheMan3150 · 04-03-2009, 07:19 PM

I'm still not sure i understand you. At the the times that the UPS is switching itself to battery power the input voltage and frequency have been checked and are operating at the correct amounts, yet the UPS is supplying power from the batteries. Even the logs in the UPS's memory state that the power never dropped below its tolerance. Is that the point of failure you were talking about?

04-02-2009, 09:56 AM	#1 (permalink)
TheMan3150 Registered User Join Date: Dec 2007 Location: N.Y. Posts: 23 OS: Windows XP SP2	UPS Issue I have a Best Technologies FD7KVA uninterruptible power supply that is switching to battery power at seemingly random times for various lengths of time. Has anyone had this kind or any ups with the same problem? The frequency, battery voltage, input and output voltage have all been tested and are at the right levels. The batteries are one year old. The current draw is only 4 amps at 120 volts. Any ideas would be greatly appreciated.

04-02-2009, 10:38 AM	#2 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,569 OS: win 7 32x 64x rtm	Re: UPS Issue what are you running video card cpu m/board ram power supply brand wattage check the listings in the bios for voltages and temperatures and post them __________________

04-02-2009, 10:48 AM	#3 (permalink)
TheMan3150 Registered User Join Date: Dec 2007 Location: N.Y. Posts: 23 OS: Windows XP SP2	Re: UPS Issue This ups powers a few computers but is not interfaced with any of them.

04-03-2009, 10:11 AM	#4 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,569 OS: win 7 32x 64x rtm	Re: UPS Issue i was thinking along the lines the psu output is varying causing the ups to come into play __________________

04-03-2009, 10:48 AM	#5 (permalink)
TheMan3150 Registered User Join Date: Dec 2007 Location: N.Y. Posts: 23 OS: Windows XP SP2	Re: UPS Issue do you mean the input to the UPS or the draw from the computers power through the ups?

04-03-2009, 10:54 AM	#6 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,569 OS: win 7 32x 64x rtm	Re: UPS Issue if the other computers don't have the problem i was thinking the psu is going and causing it to switch to the ups when the line drops to far and supplies insufficient power __________________

04-03-2009, 07:19 PM	#7 (permalink)
TheMan3150 Registered User Join Date: Dec 2007 Location: N.Y. Posts: 23 OS: Windows XP SP2	Re: UPS Issue I'm still not sure i understand you. At the the times that the UPS is switching itself to battery power the input voltage and frequency have been checked and are operating at the correct amounts, yet the UPS is supplying power from the batteries. Even the logs in the UPS's memory state that the power never dropped below its tolerance. Is that the point of failure you were talking about?