200110086 120V APS MV-cabinetEn-Sp 93-2006.qxd
Switches, Indicator Lights & Other Features
Indicator Lights
4. "LINE" (All models): This green light will turn continuously ON whenever connected equipment
is receiving utility-supplied AC power and your APS is set to "AUTO/REMOTE", meaning
that it will provide battery backup if utility power fails. It will flash intermittently when
connected equipment is receiving utility power and your APS's Operating Mode Switch is set
to "CHARGE ONLY" to warn you that the APS's inverter is OFF and that the APS WILL
NOT provide battery backup during blackouts, brownouts or overvoltages.
5. "INV" (Inverting—all models): This yellow light will turn continuously ON whenever
connected equipment is receiving battery-supplied AC power (during a blackout, brownout or
overvoltage while connected to utility power or when connected to batteries during vehicular
operation).
6. "LOAD" (All models): This red light will turn continuously ON when the APS's load is
between 80% and 110% of capacity. The light will flash intermittently when the APS's inverter
shuts down due to a severe overload or overheating. If this happens, turn Operating Mode
Switch OFF. Remove the overload and let the unit cool. You may then turn the APS ON after
it cools.
7. "CUT/BOOST" (VR models only): These lights will turn ON whenever your APS is
automatically correcting high (CUT) or low (BOOST) AC line voltage. This is a normal, automatic
operation of your APS that does not drain battery power, and no action is required on your part.
8. "BATTERY HI/MED/LO" (All models): These three lights will turn ON in several
sequences to show the approximate charge level and voltage of your connected battery bank
and alert you to several fault conditions:
BATTERY CHARGE INDICATION (Approximate)
Indicator
Green
Green & yellow
Yellow
Yellow & red
Red
All three lights off
Flashing red
All three lights flash slowly*
All three lights flash quickly** Overcharge
* Approximately 1/2 second on, 1/2 second off. See Troubleshooting section.
** Approximately 1/4 second on, 1/4 second off. May also indicate a battery charger fault exists. See Troubleshooting section.
1/4/02
Capacity
91% - Full
81% - 90%
61% - 80%
41% - 60%
21% - 40%
1% - 20%
0% (Inverter shutdown)
Excessive discharge
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