5
Use the POWER button to switch your UPS between its four modes
of operation.
OFF: No indicator lights are on. The UPS is completely shut down for
storage or shipping. If the UPS is connected to AC power, it will start up
in STANDBY mode. If the UPS is not connected to AC power and the
POWER button is pressed for two seconds, the UPS will “cold start”
into INVERT mode.
STANDBY: The “ ” light is flashing. The UPS is receiving AC
power and using it to charge its batteries. It's output is active, but if
AC power is lost the UPS will not provide battery backup support to
connected equipment. Pressing the POWER button while the UPS is
in STANDBY mode will put the UPS in the ON mode. Cutting AC
power to the UPS while it is in STANDBY mode will put the UPS in
the OFF mode.
ON: The “ ” light is on. The UPS is receiving AC power, charging
its batteries and delivering power to connected equipment. If AC
power is lost while the UPS is ON (i.e. a blackout occurs), the UPS
will switch into INVERT mode. Pressing the POWER button while
the UPS is ON will put the UPS in STANDBY mode.
INVERT: The “ ” light is flashing. The UPS is powering connected
equipment from battery backup. If AC power is restored, the UPS will
switch to the ON mode. Pressing the POWER button while the UPS
is in INVERT mode will put the UPS into the OFF mode. If the UPS
is in INVERT mode and its batteries are drained, the UPS will switch
to the OFF mode until AC power is restored, then switch to the ON mode.
Basic Operation
Buttons
200307055 93-2171 OM500RMX Owner’s Manual Revision.qxd 7/11/2003 10:15 AM Page 5
