Extended Power Outages - Powerware Ferrups FE/QFE UPS User Manual

4.
5.

Extended Power Outages

If the power is out for an extended time, the UPS continues to provide
power for your equipment until it gets near the end of its runtime. You
can check the remaining battery runtime by reading parameter 9 (see
page 33.) At a preset number of minutes before the end of the runtime
(factory-default setting is five minutes), the UPS sounds a Low Runtime
alarm (–
conserve the remaining battery power (see "UPS Shutdown" on
page 35). When AC input power returns, turn on the UPS to recharge
the batteries.
If your UPS shuts itself down because its battery voltage is too low, shut
down the UPS until the AC input power returns (see "UPS Shutdown"
on page 35).
Powerware ® FERRUPS FE/QFE UPS (500 VA–18 kVA) User's Guide
If you have a battery cabinet that has a DC
500 VA–3.1 kVA:
switch on the front, turn the switch to the OFF position. If your
battery cabinet does not have a DC switch on the front, unplug
the connector between the battery cabinet(s) and the UPS; be
sure to reconnect this connector before you start the UPS again.
Unlock the lock in the center of the front panel and
4.3–18 kVA:
remove the panel. If there is a DC switch behind the panel, turn
it to the OFF position. Reattach the panel to the UPS. If your
UPS has separate battery cabinets, turn the DC switch at each
battery cabinet to the OFF position.
If the UPS is turned off for an extended period of time,
batteries every 90–120 days to prevent battery damage. To
restart the UPS, see "Startup" on page 17.
). Shut down your equipment and turn off the UPS to
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Operation
recharge the
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