Magnum Energy ME-RTR Router - Manual (Page 34)

©
2014 Magnum Energy, Inc. Page 26
Setup
**IMPORTANT**
1. To use the AC In Control features (AC In – Time, AC In – Volts DC, and AC In – SOC), the AC
source must always be connected and available for use at the inverter’s AC input—such as
utility power. There is no benefi t from using the AC In feature if using a generator, because
the generator power may not be available when the AC In feature becomes activated.
2. When an AC In feature (AC In – Time, AC In – Volts DC, or AC In – SOC) is selected, that
feature is active whether or not there is any AC power on the inverter’s input. If no AC
power is available, the inverter continues in Inverter mode. However, if AC power becomes
available on the inverter’s input after the connect setting (Time, VDC, or SOC) has been
reached, the inverter continues to allow the incoming AC power to be connected and used
until the disconnect setting is reached.
3. When using a dual source inverter/charger such as the MSH4024RE, the AC In features
only work with the GRID IN (AC1) input.
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 some small loads (e.g., digital
clocks, satellite receivers, answering machines, etc.,) are required to be on, then this feature
should be turned off (Sensitivity = 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 plan to run. If you don’t know
the wattage of the smallest load, turn the switch for the load on and decrease the Search Watts
setting until the load comes on and stays on.
Info: Even with Search Watts on, some connected equipment— even if turned off—may
draw enough current to keep the inverter in the Inverting mode (i.e., not “searching”).
• 02B Low Battery Cut Out: The Low Battery Cut Out (LBCO) menu sets the DC voltage level
that turns off the inverter. This helps protect the batteries from over-discharge damage. 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 indications will be immediate.
Default settings: LBCO Volts = 10.0 VDC (12v), 20.0 VDC (24v), 40.0 VDC (48v)
Ranges: 9.0-12.2 VDC (12v), 18.0-24.4 VDC (24v), 36.0-48.8 VDC (48v)
Where should I set the LBCO setting? If your goal is to not discharge your batteries more
than 20%*, then set the LBCO from 11.5 to 12.2 VDC (12-volt models), 23.0 to 24.4 VDC (24-
volt models), or 46.0 to 48.8 (48-volt models). In some applications, such as those installed in
an off-grid home or when doing a lot of RV dry-camping, 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, use the ME-BMK battery monitor.
Info: The higher the LBCO setting, the less the inverter discharges the batteries; which
allows the batteries to have a longer life. The down side to a higher LBCO setting is that
you need to charge more often to prevent the inverter from shutting off in Fault mode.