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Figure 4. Home UPS Front Panel Controls and Indicators
Table 1. Home UPS Indicators
NOTE: In the case of a sustained overload, the Home UPS will be turned off automatically after
one minute, and will wait in the fault state for a minute. After that, it will restart again. If the
overload still persists, the Home UPS will be turned off again after one minute, and will wait in
fault state for one minute and restart again. In the same way, it will try for three restarts. If the
overload still persists, it will stay in fault state permanently until the unit is restarted with push
button. If the time interval between two consecutive overloads is more than 5 minutes, then the latest
overload is considered as a fresh overload and three restart cycle will begin again.
Page 4
Mode
On
Mains
(green)
On
Battery
(yellow)
Fault
(red)
INV
Disable
(red)
Buzzer Description
ON LINE On Off Off Off Off The unit is ON-LINE.
ON LINE SELF TEST Flashing Off Off Off Off The unit is in ON-LINE Self-Test mode.
ON BATTERY SELF
TEST
Flashing On Off Off Off The unit is in ON-BATTERY Self-Test
mode, and the load is less than 25%.
ON BATTERY Off On Off Off The unit is in ON-BATTERY mode, and
the load is less than 25%.
BATTERY
DISCONNECTED
On Off Flashing Off Chirp every 2 seconds The unit is ON-LINE mode; battery is
disconnected.
Short Circuit (heavy
overload)
Off Off On Off Continuously On The unit is in FAULT state, due to short
circuit fault.
ON BATTERY Low
Battery Warning
Off On Off Off Constant Beeping, Can be muted through
front panel TEST/MUTE push button.
Table 2. Load Indications
25% 50% 75% 100% Overload Buzzer Description
Power Meter on off off off off off
The unit is in ON-BATTERY
mode, and the load is less
than 25%.
Power Meter on on off off off off
The unit is in ON-BATTERY
mode, and the load is between
25% and 50%.
Power Meter on on on off off off
The unit is in ON-BATTERY
mode, and the load is between
50% and 75%.
Power Meter on on on on off off
The unit is in ON BATTERY
mode; the load is between
75% and the overload limit.
INVERTER LOAD
25% 50% 75% 100%
OVER
LOAD
AWAY
HOME
TEST
INVERTER
DISABLE
ON
MAINS
ON
BATTERY FAULT
MUTE