Figure 11. Power Inverter Front Panel Controls and Indicators
Table 1. Power Inverter Indicators
Mode
On Mains
(green)
On Battery
(yellow)
Fault
(red)
INV
Disable
(red)
25%
(green)
50%
(green)
75%
(green)
100%
(green)
Overload
(red)
Buzzer Description
ON LINE On Off Off Off Off Off Off Off Off Off The unit is ON-LINE.
ON LINE SELF TEST Flashing Off Off Off Off Off Off Off Off Off The unit is in ON-LINE Self-
Test mode.
ON BATTERY SELF
TEST
Flashing On Off Off On Off Off Off Off Off The unit is in ON-BATTERY
Self-Test mode, and the load
is less than 25%.
Flashing On Off Off On On Off Off Off Off The unit is in ON-BATTERY
Self-Test mode, and the load
is between 25% - 50%.
Flashing On Off Off On On On Off Off Off The unit is in ON BATTERY
Self-Test mode, and the load
is between 50% - 75%.
Flashing On Off Off On On On On Off Off The unit is in ON-BATTERY
Self-Test mode, and the load
is more than 75% but less
than oveload limit.
Flashing On Off Off On On On On On Continuous beep for
first 30 seconds for a
fresh overload.
The unit is in ON-BATTERY
Self-Test mode, and is in an
overload condition.
ON BATTERY Off On Off Off On Off Off Off Off 4 beeps every 22
minutes
The unit is in ON-BATTERY
mode, and the load is less
than 25%.
Off On Off Off On On Off Off Off 4 beeps every 22
minutes
The unit is in ON-BATTERY
mde, and the load is between
25% and 50%.
Off On Off Off On On On Off Off 4 beeps every 22
minutes
The unit is in ON-BATTERY
mode, and the load is
between 50% and 75%.
Off On Off Off On On On On Off 4 beeps every 22
minutes
The unit is in ON BATTERY
mode; the load is between
75% and the overload limit.
Off On Off Off On On On On On Continuous beep for
first 30 seconds of a
new overload.
The unit is in ON-BATTERY
mode, and is in overload
condition (see NOTE below).
STANDBY ENABLE Off Off Off Off Off Off Off Off Off Short beep every 5
seconds
The unit is shut down due to a
LOW BATTERY.
STANDBY Off Off Off Off Off Off Off Off Off Off The unit is in STANDBY
mode, and is not powering
the load.
FAULT - Off Off Off Off On On On On On Off Iverter load capacity has
been exceeded (see NOTE
below).
FAULT- Flashing Flashing Flashing Off Off Off Off Off Off Off The unit is in FAULT mode,
contact APC Technical
Support.
FAULT- Off Off On Off Off Off Off Off Off Continuously On The unit is in FAULT mode,
contact APC Technical
Support.
INVERTER LOAD
25% 50% 75% 100%
OVER
LOAD
AWAY
HOME
TEST
INVERTER
DISABLE
ON
MAINS
ON
BATTERY FAULT
MUTE
Page 10
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