![Nature Power 40400 Owner'S Manual Download Page 11](http://html.mh-extra.com/html/nature-power/40400/40400_owners-manual_710885011.webp)
Page
11
Ch1
Internal 5A charger is enabled. Charger will automatically charge the
internal battery when AC is available.
Alarm
Setting
AL0
Audio alarm sound is disabled. Alarm will not sound when warning and
fault occur.
AL1
Audio alarm sound is enabled. Alarm sounds when warning or fault
occurs.
Unit Function Setting
Setting
Mode of
Operation
Unit Function
In1
Ch1
AL1
Full
Automatic
(Factory
default)
AC output is provide by AC utility when utility is available
Internal battery is automatically charged by the 5A
charger
AC output will automatically switch to inverter mode
power by the internal battery when utility is not available
Audio alarm is enabled and will sound when any warning
or fault occurs
In1
Ch1
AL0
Full
Automatic
Silent
Same as “Full automatic 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 shutdown without audio warning when fault
occurs.
In1
Ch0
AL1
Auto
Backup
with AC
Charger
Disable
Same as “Full automatic mode” but with 5A AC charger
disabled.
Battery can only be charged by the solar panel or external
charger.
Only use this mode when there is sufficient solar power or
external charger to charge the internal battery
In1
Ch0
AL0
Auto
Backup
with AC
Charger &
Alarm
Disable
Same as “Auto backup with AC charger 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 shutdown without audio warning when fault
occurs.
In2
Ch1
AL0 or 1
Setting is
not
available
Not available for user setting