UPS show 0.0% for "Load in Watts" on UPS, Overview Tab on AP9617

[Anonymous user]

Hi,

I've deployed 29 Smart-UPS 2200XL and RM XL UPSs and connected Cisco PoE switches to about half of them.

When I view the Load in Watts using the Web interface of the NIC card, the vast majority of them show a load (ranging from about 6 - 12%) and a corresponding battery runtime of about 1.5 hours. But 2 or 3 of them show 0.0% load and a very long runtime (4.5 hours). All UPS NIC cards have been upgraded to the latest software version.

This is wierd. Any explanation? Bug perhaps?

I've attached a screen shot. I can assure you that 2 Cisco 24 port PoE switches are plugged into this UPS. Just to ensure that the UPS is working correctly I unplugged the UPS from power and the switches continued to stay up.

Thanks in advance for your help, Ian.

[BillP · Accepted solution]

hi Ian.

The UPS is the least accurate at very low loads versus when fully loaded as far as load reporting. i have seen this before. if the load is barely an amp or between one and two amps, it might show no load. it is not a bug and would be related to the UPS reporting, not the network management card.

i wouldnt be concerned as long as the UPS provides the expected runtime and functions correctly.

we missed your screenshot but i can imagine what it looks like 😉

[Anonymous user]

You are right! thank you, you help me today!