Magnum Energy MM-AE Series - Manual (Page 29)

©
2010 Magnum Energy, Inc.
3.0 Operation
Operating Modes
The MM-AE Series inverter/charger has two normal operating rou-
tines; Inverter Mode, which powers your loads using the batteries,
and Standby Mode, which transfers the incoming AC power (i.e.,
utility power or a generator) to power your loads and also uses this
incoming power to recharge the batteries. This inverter also includes
an extensive protection circuitry that shuts down the inverter under
certain fault conditions.
Inverter Mode
When the inverter is fi rst powered up, it defaults to the OFF mode.
The
momentary ON/OFF power switch ( Figure 2, Item 2) m ust be lightly
pressed to turn the inverter ON. Subsequently pressing this switch
alternately turns the inverter OFF and ON.
Inverter OFF - When the inverter is OFF, no power is used from
the batteries to power the AC loads and the status LED will be
OFF. If AC power from an external source (utility or generator)
is connected and qualifi ed on the inverter’s AC input, this AC in-
put power will pass through the inverter to power the AC loads.
However, if this AC power is lost, the AC loads will no longer be
powered because the inverter is OFF.
When the inverter is turned ON, it operates either by “Searching”
or “Inverting”, depending on the connected AC loads.
Searching - When the inverter is fi rst turned ON, the automatic
Search feature is enabled. This feature is provided to conserve
battery power when AC power is not required. In this mode, the
inverter pulses the AC output looking for an AC load (i.e., electrical
appliance). Whenever an AC load (greater than 5 watts) is turned
on, the inverter recognizes the need for power and automatically
starts inverting. When there is no load (or less than 5 watts) de-
tected, the inverter automatically goes back into search mode to
minimize energy consumption from the battery bank. When the
inverter is “Searching”, the inverter’s green LED fl ashes (fast).
Info: The factory default value for the Search feature
is 5 watts, it can be turned off or adjusted from 5 to 50
watts using the ME-RC50 remote display.
Inverting - When a load greater than 5 watts is connected to the
inverter output, the MS Series “inverts” the DC power from the bat-
tery and supplies 120 VAC power to your sub-panel. The inverter’s
green LED fl ashes once every 2 seconds (medium fl ash) to indicate
it is inverting. The amount of time the inverter can be inverting
and providing power is directly related to the amount of AC loads
that are connected and the capacity of the battery bank.
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3.0 Operation
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