Nature Power 40400 Owner's Manual page 12

In2 Backup
Priority
Ch0
AL1
In2 Backup
Priority with
Ch0
Alarm
AL0
Disable
In0 Backup
Disable
Ch1
AL1
In0 Backup &
Alarm
Ch1
Disable
AL0
In0 Backup &
Charger
Ch0
Disable
AL1
In0 Backup,
Charger &
Ch0
Alarm
AL0
Disable
Unit will provide output using battery and solar power as
higher priority.
AC output will only switch to utility mode when battery is
low and available.
Audio alarm is enabled and will sound when any warning
or fault occurs
Note: Only use this mode when there is sufficient solar
power to power up the load.
Same as "Backup priority mode‟ but with alarm disabled.
Audio alarm will not sound when any warning or fault
occurs. The unit fault protection features remain active
and will shut down without audio warning when fault
occurs.
AC output is provided by AC utility when utility is available
Internal battery is automatically charged by the 5A
charger
Inverter is disabled and no backup power occurs when
AC utility is not available.
Audio alarm is enabled and will sound when any warning
or fault occurs
Same as "Backup disable mode" but with alarm disabled.
Audio alarm will not sound when any warning or fault
occurs. The unit fault protection features remain active
and will shut down without audio warning when fault
occurs.
AC output is from utility AC power. No AC output when
utility AC is not available.
AC output is from utility AC power. No AC output when
utility AC is not available.
Unit Display Label as shown
Page 12