16 Section 3 • Configuration
Table 2. How to Interpret LEDs in Configuration Mode
LED
Function
LED 16
Explanation
1
120/230 Nom.
ON (default)
Nominal voltage on low voltage models is 120 V and on high voltage models is 230 V; all other
nominal input voltages are disabled.
OFF
Nominal voltage on low voltage models is NOT 120 V and on high voltage models is NOT 230 V;
some other nominal input voltage is selected.
2
110/220 Nom.
ON
Nominal voltage on low voltage models is 110 V and on high voltage models is 220 V; all other
nominal input voltages are disabled.
OFF (default)
Nominal voltage on low voltage models is NOT 110 V and on high voltage models is NOT 220 V;
some other nominal input voltage is selected.
3
127/240 Nom.
ON
Nominal voltage on low voltage models is 127 V and on high voltage models is 240 V; all other
nominal input voltages are disabled.
OFF (default)
Nominal voltage on low voltage models is NOT 127 V and on high voltage models is NOT 240 V;
some other nominal input voltage is selected.
4
Extended Voltage
ON
The UPS accepts an input voltage within -35% to +20% of the selected nominal input voltage before
switching to battery.
OFF (default)
The UPS accepts an input voltage within -30% to +20% of the selected nominal input voltage before
switching to battery.
5
Wiring Fault
Alarm
ON (default)
Alarm sounds when the polarity of the input source is reversed or ground is missing; have a
qualified electrician repair input source.
OFF
Alarm DOES NOT sound when the polarity of the input source is reversed or ground is missing.
6
Low Battery
Alarm
ON (default)
Alarm sounds 3 minutes before battery shutdown.
OFF
Alarm sounds 5 minutes before battery shutdown.
7
Shutdown Delay
ON (default)
5-second delay before unconditional shutdown after UPS receives signal from a computer via
Communication Port.
OFF
180-second delay before unconditional shutdown after UPS receives signal from a computer via
Communication Port. When this LED is not enabled, the user can also create a new delay time by
reconfiguring the Communication Port. See Appendix A, Additional UPS Features, for more
information.
8
AC Input Failure
ON (default)
Alarm sounds when there is an AC input failure.
OFF
Alarm DOES NOT sound when there is an AC input failure.
9
Sleep Mode
ON (default)
UPS shuts off power to load when the UPS is on battery power and load is not drawing current. This
feature saves battery power.
OFF
UPS DOES NOT shut off power to load when the UPS is on battery power and load is not drawing
current.
10
100/208 Nom.
ON
If your unit is configurable for 100 V operation, when LEDs 10 and 16 are both on, the nominal
voltage on 100 V models is 100 V and on 208 V models is 208 V; all other nominal input voltages
are disabled.
OFF (default)
Nominal voltage on 100 V models is NOT 100 V and on 208 V models is NOT 208 V; some other
nominal input voltage is selected.
11-14
N/A
Reserved for future use.
15
Reset Defaults
ON (default)
All factory-set defaults are active.
OFF
One or more factory-set defaults have been changed.
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