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©
2013 Magnum Energy, Inc
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Operation
3.8 Factory Default Values
Your MSH-M Series inverter/charger uses default values for the adjustable settings (shown in Table
3-2) that are adequate for most installations. If some of your operating parameters need to be
changed from the default values, an optional remote control/display can be used to make those
changes. To help you determine if you need a remote display, information on the inverter/charger
settings that can be changed is provided below. Once programmed, the settings are saved in the
remote’s non-volatile memory and are preserved until changed—even if DC power to the inverter
is lost (as long as the remote is connected). For information on the full range of settings for each
function in your remote, refer to its owner’s manual at
www.magnumenergy.com
.
• Shore
Max/Input
Amps:
This setting ensures the inverter AC loads receive the maximum
current available from shorepower or a generator. When the total current used to power
the AC loads and charge the batteries begins to approach the
Shore Max
setting, the
current that was used for charging the batteries will automatically be reduced.
• Search
Watts:
This setting allows you to turn off the power-saving Search mode circuitry,
or to adjust the power level at which the inverter will “wake up” and start inverting.
• LowBattCutOut:
This setting determines when the inverter will turn off based on low
battery voltage. The inverter turns off automatically after the battery voltage has been
below this setting for more than one minute. This protects the batteries from over-
discharge and the AC loads from unregulated power (brown-outs).
• Absorption
Time:
This setting allows the user to determine how long to charge the
batteries in the Absorb Charge stage.
• Battery
Type:
Sets the type of batteries being used in the system. This information tells
the charger what voltage level to use to charge the batteries.
• Charge
Rate:
This setting can be used to turn off the charger, limit the amount of current
that the charger can use (leaving more current available to power loads), or to ensure
small battery banks are not overheated because of a charge rate that is too high.
• VAC
Dropout:
Sets the minimum AC voltage that must be present on the AC input before
the unit transfers from Standby mode to Inverter mode. This protects the AC loads from
shorepower outages and brown-outs.
Using a remote display also provides the following features:
• allows you to enable an equalize charge for certain battery types
• displays inverter/charger’s operating status
• provides fault information for troubleshooting
Info:
Speci
fi
c adjustments that are set using a remote control will be LOST if the
remote is unplugged and battery power is shut off to the inverter/charger.
The table below provides the inverter’s default settings – without a remote connected.
Table 3-2, Inverter/Charger Default Values
Adjustable Settings
Default Values
Shore Max/Input Amps
30 Amps
Search Watts
5 Watts
LowBattCutOut
MSH3012M units: 10 VDC (one min. delay), 8.5 VDC (no delay)
MSH4024M units: 20 VDC (one min. delay), 17.0 VDC (no delay)
Absorption Time
600 AmpHrs (Absorb Time = 120 minutes)
Battery Type
Flooded - Liquid Lead Acid
MSH3012M units: Absorb = 14.6 VDC, Float = 13.4 VDC,
MSH4024M units: Absorb = 29.2 VDC, Float = 26.8 VDC.
Charge Rate
100%
VAC Dropout
80 VAC
