35
5.0 Operation
5.2.6 UPS Setup (continued)
HighUPS remains sensitive to aberrant line voltages.
Load voltage regulation stays within the narrow band.
Low or MediumUPS is less sensitive to aberrant
voltages. Voltage regulation is relaxed.
The voltage at which the UPS transfers to on-battery
operation is adjustable for conditions where high mains
voltage persists and it is known that the loads can
withstand the elevated voltage.
 When configured for 208V service, the transfer voltage
choices are 240V, 244V, 248V and 252V.
 When configured for 240V service, the transfer voltage
choices are 276V, 264V, 253V, 282V.
The minimum interval between activation of the UPSs
low-battery alarm warnings and UPS shutdown is user
configurable.
 The choices are 2, 5, 7 and 10 minutes.
The UPS may be set to shut down before usable battery
capacity is spent. This conserves battery capacity in the
event of successive outages.
 The choices for the amount of on-battery run time to be
conserved are NO (none) and 2, 5, and 8 minutes.
For applications where the UPS is used as a remote power
source or where the UPS frequently transfers to on-battery
operation because of poor service quality, the function of
the audible alarm may be altered so that it will not
become an annoyance.
All imedA sequence of four beeps is sounded
immediately upon transfer to on-battery operation. The
UPS sounds the beep sequence every 30 seconds while
operating on-battery. When low battery conditions are
reached, the alarm changes to a beep once every second.