Invert Setup - Magnum Energy ME-ARC Owner's Manual

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3.0 Setup

02 Invert Setup

The following menus 02A - 02D are used to set up only the functions related
to the Inverting mode of the inverter/charger.
• 02A Search Watts - Allows you to turn off the Search Watts feature,
or adjust the power level to determine when the inverter leaves search
mode. The power level range selection is Off, 5W to 50W. If this feature
is not needed, select Search=Off. When search is turned off, the inverter
continuously provides full AC voltage to the loads.
Default setting: Search= 5 W.
Info: When the Search Watts feature is active, "Searching" ap-
pears on the top line of the LCD display and the green 'INV' LED
will slowly fl ash.
What is the Search Watts feature? This feature is used to help save
battery power by reducing the inverter's output to search pulses when there
is no detectable load. If a load greater than the wattage level setting turns
on while the inverter is "Searching", the inverter will start "Inverting" to
provide full voltage on its output.
Should I use the Search Watts feature? If the inverter can spend a great
deal of time searching (to reduce the power drain on your batteries) and you
can tolerate small loads (less than 5 watts) being OFF, then the search mode
feature should be used. However, if you require some small loads (i.e. digital
clocks, satellite receivers, answering machines, etc.) are required to be on,
then this feature should be turned off (Search = Off).
Where should I set "Search Watts"? The Search Watts setting should be
adjusted to the same power level (or the next lower setting) of the smallest load
that you want to run. If you don't know the wattage of the smallest load you
want to run, turn the load on and decrease the Search Watts setting until the
load comes on and stays on.
Example: You have reviewed all the loads you want to run and determined that
the smallest load is a 30 watt light, then set the Search = 30W. Whenever you
turn on any load (because all the loads are greater than 30 watts), the inverter
will stop "searching" and start "Inverting" to deliver power to the load.
Note: Even though the search feature is on, some connected equipment may
draw enough current even while in the "off" position to keep the inverter in
the "Inverting mode".
• 02B LBCO Setting - The Low Battery Cut-Out (LBCO) setting is used
to set the DC voltage level that turns off the inverter, to help protect the
batteries from over-discharge damage. Selections are from 9.0 VDC to 12.2
VDC (12-volt inverter models), 18.0 VDC to 24.4 VDC (24-volt inverter
models), or 36.0 to 48.8 (48-volt inverter models). If the battery voltage
drops below the LBCO set-point continuously for more than 1 minute, the
fault LED will come on, the inverter will turn off, and the display will show
a 'Low Battery' status. If the battery voltage falls below 8.5 volts (12-volt
models), 17.0 volts (24-volt models), or 34.0 (48-volt models); the fault
LED and 'Low Battery' status will be immediate.
Default settings: LBCO = 10.0 VDC (12-volt models), 20.0 VDC (24-volt
models) or 40.0 VDC (48-volt models).
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