Magnum Energy ME-ARC Series Owner's Manual page 38

3.0 Setup
Info: If multiple inverter/chargers are used on a single battery bank,
you must ensure that the total charge rate from all inverter/char-
gers is limited to the maximum charge rate needed for your battery
bank. The Max Charge Rate setting only limits the charging on each
inverter/charger individually, not on all inverter/chargers.
• 03D VAC Dropout – Selects the minimum AC voltage that must be
present on the input before the inverter/charger switches from Inverter
mode to Standby mode. This setting also determines the minimum AC
voltage threshold where the charger disengages and the inverter (when
turned on) resumes powering the AC loads from the inverter's battery
power. This protects AC loads from utility outages.
Example: If the VAC Dropout setting is 60, then the AC input voltage must
be above 60 volts before the inverter connects and switches from Inverter
mode to Standby mode. Once the AC is connected, the AC voltage must drop
below 60 VAC to switch back to Inverter mode.
Settings for all models except MSH4024RE:
Set VAC Dropout – This setting determines at what AC voltage—from
the HOT IN 1 to NEUT IN 1 terminals—the inverter/charger will connect
to or disengage from the incoming AC.
Default setting: 80 VAC (150 VAC for export models)
Range: 60-100 VAC, UPS Mode (110-190 VAC, UPS Mode for export
models)
Settings for MSH4024RE:
Info: The MSH4024RE inverter/charger has two independent AC
source inputs (AC1/GRID and AC2/GEN) with independent VAC
dropout settings for each input. The Set VAC Dropout AC1 and Set
VAC Dropout AC2 menus only display if the remote is connected to
a dual input source inverter/charger.
Set VAC Dropout AC1 – This setting determines what AC voltage—from
the MSH4024RE inverter/charger's AC1 to NEUTRAL terminals—the in-
verter/charger will connect to or disengage from the incoming AC.
Default setting: 80 VAC
Range: 60-100 VAC, UPS Mode
Set VAC Dropout AC2 – This setting determines what AC voltage—from
the MSH4024RE inverter/charger's AC2 to NEUTRAL terminals—the in-
verter/charger will connect to or disengage from the incoming AC.
Default setting: 75 VAC
Range: 60-100 VAC
Where do I set my VAC Dropout? It depends on the application and what
you are using as the AC source. The settings not only look at the incoming
voltage level to determine when to transfer, but also determine how quickly
the charger disconnects and starts inverting based of the fl uctuations of the
incoming AC voltage.
Dropout = 60 VAC to 100VAC (Export inverter models: Dropout =
110 VAC to 190 VAC) – Use a VAC dropout setting from 60 VAC to 100
VAC (export models use a dropout from 110 VAC to 190 VAC) when the
AC source may have fl uctuations in RMS voltage. These settings attempt
to prevent the charger from disengaging unnecessarily due to
32 © 2012 Magnum Energy, Inc.