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After some time that the UPS is switched on, it starts beeping. The voltage output is still ok, and if the input is switched off, the output voltage remains stable. but the buzzer remains on. Did anyone encounter this issue? Thanks in advance Gef
tried that, but to no avail. Battery managed to sustain load for over 10 minutes. Still, replaced battery with same result. Thanks for your helptried that, but to no avail. Battery managed to sustain load for over 10 minutes. Still, replaced battery with same result.
Thanks for your help
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My ups batteries are fully charged good voltage indication by digital meter but still giving a beep after 2 or 3 seconds when removed from main electric supply
Is there any indicator lights ON showing the fault condition?
This could indicate that the battery has a low charge. Even if you switch off the mains supply and it switches over to the battery, the UPS may shut down after a short time as the battery power (charge) runs out.
If the battery is more than 3 years old then it may be due for replacement.
No there are no indicator lights. No the batteries are fully charged. The Ups clicks once when mains is applied. If you then touch the on button you hear a buzzing sound.No there are no indicator lights. No the batteries are fully charged. The Ups clicks once when mains is applied. If you then touch the on button you hear a buzzing sound.
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no real model told , off rear sticker, (tell sticker model first)
420va
no country told
no line voltage told in your country
Did you buy the ups from wrong country(oops) and it has
higher input voltage spec and yours is lower input? (real)
nobody can guess what's up there.
history and all that and location,
voltages are not the same word wide at all
nor frequency 50/60Hz
did you buy a used UPS.
if yes from where ebay, and from wrong country
or it ran for years and fails now.
or outputs overloaded on it.
disconnect the input cable let UPS run on battery and check the output voltage with a true RMS voltmeter (fluke 87) if input cable is connected to main power you get the same on the output
input = output
what caused the UPS to transfer to Bypass? could be inverter fault, would you please check your battery set, maybe the input power is outside the tolerance and causing UPS to discharge the battery set , as well when battery set reaches the end of discharge it is causing the UPS to transfer to bypass and there is something missing on the input yellow Phase.
if the above is not true check the load type that is connected to the UPS output that is causing UPS to switch off in 10 minutes time.
Sounds like you hooked up the input to the UPS on the bypass. Either way either way your input is not there. Also make sure you configure the UPS prior to placing online.
If you hit the ESC key and get to the main menu there is a Setup submenu. In there you can change the line voltage values coming into the UPS. Sometimes a previous owner will change those values and cause the UPS to fault when properly connected. NOTE: A CERTIFIED ELECTRICIAN SHOULD VERIFY ALL CONNECTIONS ENSURE PROPER PHASE ROTATION.
Reply or call if you have any more questions -- 800.260.2259
Ok, 3-4 years is a much as you can expect from an ups battery so replacement is indicated. The beeps are letting you know the battery is not able to keep up with demand. So either you have recently added to the system or the battery/s failing.
More than likely it just needs a new battery. If the power is sagging (called a brownout) the UPS is trying to switch over to the battery to keep the power consistent. The beeping is probably a code that indicates there is an issue with low voltage on the battery. New batteries are around $20-25. Here's a link to the replacement battery: http://batteryinternational.com/apc-backups-es-be350es-ups-battery-ups-batteries-f1.html
tried that, but to no avail. Battery managed to sustain load for over 10 minutes. Still, replaced battery with same result.
Thanks for your help
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