Magnum Energy MS Series Owner's Manual

Contents

Magnum Energy MS Series Owner's Manual Manual pdf 45 page image

Page 39© 2009 Magnum Energy Inc.Installation3.0 OperationThe MS Series inverter has two normal operating routines; 1. Inverter Mode, which powers yourloads using the batteries, and 2. Standby Mode, which transfers the incoming AC Power (i.e.,utility power or a generator) to power your loads and uses this incoming power to recharge thebatteries. This inverter also includes an extensive protection circuitry to shut-down the inverterunder certain fault conditions.3.1 Inverter ModeWhen the MS Series is first powered up, it defaults to the OFF mode. The momentary ON/OFFpower switch (item 1 figure 1-1) must be lightly pressed to turn the inverter ON. Subsequentlypressing 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 ACloads and the status LED will be OFF. If AC power from an external source (Utility or Generator)is connected and qualified on the inverter’s AC input, this AC input power will pass through theinverter to power the AC loads. However, if this AC power is lost, the AC loads will no longer bepowered because the inverter is OFF.When the inverter is turned ON, it operates either by “Searching” or “Inverting”, depending onthe connected AC loads.Searching - When the inverter is first turned ON, the automatic Search feature is enabled. Thisfeature 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). Wheneveran AC load (greater than 5 watts) is turned on, the inverter recognizes the need for power andautomatically starts inverting. When there is no load (or less than 5 watts) detected, the inverterautomatically goes back into search mode to minimize energy consumption from the battery bank.When the inverter is “Searching”, the inverter’s green LED flashes (fast).Info: The factory default value for the Search feature is 5 watts, it can be turned offor adjusted from 5 to 50 watts using the ME-RC 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 battery and supplies 120 VAC power to your sub-panel Theinverter’s green LED flashes once every 2 seconds (medium flash) to indicate it is inverting. Theamount of time the inverter can be inverting and provide power is directly related to the amountof AC loads that are connected and the capacity of the battery bank. Refer to figure 3-1 to seethe flow of power from the DC input to the AC output while in the Inverter Mode.0V A C 120V A C120V A CIN VO U TN eutral -G roundT rans fer R elayA C H otT rans fer R elayA C H O T 1 INA C H O T 2 INC B 3 (3 0A )A C N E U T R A L INA C G R O U N DP ow er T rans form erF E T B ridgeA CD CD CINA C H O T 1 O U TA C H O T 2 O U TC B2( optional )C B1( optional )D C P O S IT IV ED C N E G A T IV EA C N E U T R A L O U TFigure 3-1, Power Flow - Inverter Mode