Magnum Energy MS Series - Manual (Page 59)

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©
2012 Magnum Energy, Inc.
Operation
3.8 Factory Default Values
Your MS 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. The settings, once programmed, 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 the utility or generator power. 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).
• Batt AmpHrs/Absorption Time: This setting allows the user to input the battery bank
size in amp hours or to set the absorption time—which tells the charger 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
utility outages and brown-outs.
Using a remote display also provides the following features:
• allows you control to enable an equalize charge for certain battery types
• displays inverter/charger’s operating status
• provides fault information for troubleshooting
Table 3-2, Inverter/Charger Default Values
Adjustable Settings Default Values
Shore Max/Input Amps 30 Amps
Search Watts 5 Watts
LowBattCutOut
12v = 10 VDC (one min. delay), 8.5 VDC (no delay)
24v = 20 VDC (one min. delay), 17.0 VDC (no delay)
Batt AmpHrs/Absorption Time 600 AmpHrs (Absorb Time = 120 minutes)
Battery Type
Flooded – Liquid Lead Acid:
12V = Absorb 14.6 VDC, Float 13.4 VDC;
24V = Absorb 29.2 VDC, Float 26.8 VDC
Charge Rate 100%
VAC Dropout 80 VAC