I am having a problem with these UPS's not starting up automatically after the power comes on.
The unit runs the battery out during the outage, but when power is restored I have to manually turn it back on.
Is there a way to have it come on automatcially upon power restoration?
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Your question is slightly confusing. Do you mean that the computer is not powered by a UPS? If the computer is not connected to the UPS, then why have a UPS? If the computer is not connected to the UPS and restarts when you turn the UPS On, your circuit feeding the UPS is overloaded and the voltage dips. If the computer is connected to the UPS, and restarts when there is a power outage, the fault may lie in the reaction of the HP 800. This unit looks to be a line interactive unit and it is not a true on-line UPS. The line interactive and battery backup (no voltage regulation) units both should have a switch to battery power time of 4 msecs, or less. If this unit is faulty and the switchover time is longer, it will not continue to hold up the computer internal power supply. If you are trying to run a laser printer on the HP unit, it won't have enough output capacity.
UPS come in two types, lower powered cheaper types are usually switch over power. These units senses a power outage and then switch over to the battery power to generate mains supply. The switch over occurs in milli-secs and does not affect the computer. True UPS types constantly run off battery power to generate mains supply so there is no switch over time lag. These units are higher powered and higher costs units.
Both type of UPS have the same components. Battery charger. Batteries Inverter that converts battery voltage to mains voltage Electronic controls
Without further information as to the exact symptoms, it is important to point out that UPSs are only meant to function for a short amount of time (between 3 and 30 minutes, depending on model). The UPS will simply run out of battery power after that time. If the UPS has a computer interface, it may instruct the server to shut down when primary power is lost to prevent data destruction.
If the UPS does not function even briefly during a power outage, the batteries have liken gone dead and either they or the entire unit will need to be replaced. Another possibility is that you do not have a UPS at all, but a surge protector or other device that does not supply power at all.
You must have an older system. There is a battery built into the control unit (not user replaceable) that stores the system programming in case of a power outage. When the battery is dead, your system will lose all programming and default to assigning the first 2 lines to all phones. The system will have to be completely reprogrammed.
Please Note: Now would be a good time to install a UPS/Battery Backup unit on the phone system. I recommend a large enough unit to keep the phones running for at minimum of 2 hours during a power outage. Install the UPS/BB first, and then reprogram the system (so it won't have to be reprogrammed twice). Good Luck!
I'm guessing that during the power outage, the ups battery completely discharged. Now it will take about 14-15hrs to recharge it.It will not support any devices until it is fully charged. Remove all load devices and let the battery restore to full charge before re-connecting the devices. If the battery does not recover, it needs to be replaced.
may be power to the UPS went off or was not within permissible limits, hence the ups run on batteries until they were completely discharged, the servers went off because they are supplied by this ups. check the power supply to this ups, somebody could be switching it off accidentally. try to sitch the inpu power to the ups to see whether the batteries are okey
1. Provide conditioned clean AC power to computers & other peripherals (except laser printers, which should not be powered by UPS). 2. Protect equipment from the harmful effects of brownouts & sags. 3. Supply power to equipment during a power outage for a specific time, either to allow for the graceful shut down of systems, or to keep the systems working during the power outage (depending on the battery capacity).
What is happening here is you are transferring load to battery during a power outage but on return of Line Power the UPS is not smoothly transferring back to Normal mode. As a result you are basically turning off your computer. Two options... shut down your computer orderly during an outage or buy a new UPS.