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©2013 Magnum Energy, Inc.
3.0 Setup
Where should I set Search Watts?
This setting should be adjusted to the
same power level (or the next lower setting) of the smallest load that you plan
to run. If you don’t know the wattage of the smallest load, turn the load on and
decrease the
Search Watts
setting until the load comes on and stays on.
Info:
Even though the Search feature is on, some connected equip-
ment—even if they are off—may draw enough current to keep the
inverter in the Inverting mode (i.e., not “Searching”).
• SETUP: 02 LowBattCutOut
–
This setting sets the DC voltage level
that turns off the inverter to protect the batteries from over-discharge
damage. If battery voltage drops below the LBCO selected set-point
continuously for more than one minute, the FAULT LED comes on, the
inverter turns off, and the display shows a
Low Battery
status. If the
battery voltage falls below 8.5 volts (12-volt models), 17.0 (24-volt
models) or 34.0 volts (48-volt models), the FAULT LED and
Low Battery
status display will be immediate.
Default settings:
LBCO = 10.0 VDC (12v models), 20.0 VDC (24v
models), or 40.0 VDC (48v models)
Range:
9.0-12.2 VDC
(12v inverter)
,
18.0-24.4 VDC
(24v inverter)
, or
36.0-48.8 VDC
(48v inverter)
Info:
The inverter automatically begins inverting when the DC volt-
age increases to
12.5 VDC (12-volt models),
25.0 VDC (24-volt
models), or
50.0 VDC (48-volt models). If AC power is available
and connected to the inverter’s input, the inverter automatically
clears the low battery fault, passes the input AC power to the output,
and begins charging the batteries.
Press to save
SETUP
Press
Status...
02 LowBattCutOut
Rotate to
Press to select
Rotate to
desired
selection:
Range: 9.0-12.2* VDC (increments by 0.1 VDC)
* Values for a 12v model
Where do I set the LBCO setting?
If you want to cycle the batteries
slightly—but don’t want to discharge them more than 20%*—then the LBCO
setting should be set from 11.5-12.2 VDC (12-volt models), 23.0-24.4 VDC
(24-volt models), or 46.0-48.8 (48-volt models). In some applications, such
as those installed in an off-grid home or when doing a lot of dry-camping
in your RV, you may want to cycle down to 50%* by setting the LBCO from
10.0-11.4 VDC (12-volt models), 20.0-22.8 VDC (24-volt models), or 40.0-
45.6 VDC (48-volt models). In extreme circumstances, you have the ability
to discharge the batteries to 80%* by setting the LBCO to 9.0-9.5 VDC (12-
volt models), 18.0-19.0 VDC (24-volt models), or 36.0-38.0 VDC (48-volt
models) before recharging.
*
These are rough estimates. For accurate battery monitoring, a battery
monitor such as Magnum’s ME-BMK/ME-BMK-NS is required.
Figure 3-7, SETUP: 02 LowBattCutOut Selections (12v)
