Question about Computers & Internet
I have changed batteries of APC 10kva SUVT10KH4B4S. UPS working fine when AC in on but on backup mode its showing problem. Please tell how to do software caliberation for this UPS and please tell how to reset battery constant of APC 10kva SUVT10KH4B4S.
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Posted on Jan 02, 2017
Here is an answer I got from APC when one of my client got the same problem as you did:
The error message would pop up if the link between the computer and the UPS is weak. I cannot rule out a problem with the cable or the UPS. In order to confirm the same please try the following steps which might help :
1) Ensure that the USB cable is properly connected to the USB port of the computer.
2) If the PC was powered on before the UPS, communication will not be achieved until you disconnect and reconnect the USB cable to the host. In this case, you need to disconnect and reconnect the USB cable to establish communication.
3) Some other software is polling your USB port for another device, thus causing the UPS software to temporarily lose communication with your UPS. If this is the case, you would need to shut down that application.
4) If you have any other USB devices connected to the PC, disconnect them and then try plugging in the cable.
If the issue persists, please visit the following link which lists few troubleshooting steps :
Posted on Jan 13, 2008
SOURCE: Overload light in APC RS 800 UPS
it seems that the inverter circuit of your UPS is dying. the solution here is you have to open up the UPS and check the inverter circuit. to make easier, check the power mosfet if its leaking.
Posted on Aug 14, 2009
Turn it off and unplug it from the wall.
Open it up and make sure that the red and black wires are connected.
If they are the battery needs to be replaced. They are only good for 2-3 years. If you are not comfortable with my instructions, call APC for free support. (800) 555-2725
Vote for this solution if it helps.
Posted on Aug 18, 2009
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I have the same problem with an apc smart-ups VS 650.
New batteries - charge in batteries is good (also tested under load).
When AC power fails, no power is supplied to PC connectors by the UPS.
UPS self test works fine. UPS does not report any problems via software - Power Management under Windows XP.
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