Xantrex Technology MS2000 - Manual (Page 21)

Introduction
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How MS2000 Works
The MS2000 is designed to:
• invert
• charge
With AC input available from the utility grid or a generator, power is passed
through the MS2000 Sine Wave Inverter/Charger to operate connected AC loads.
The remaining AC power not used by loads is converted to DC power and used to
charge batteries.
If AC input power becomes disconnected, fails, or falls out of specification and is
no longer qualified as good AC, a quick transfer takes place and the MS2000
begins converting DC power from the batteries into AC power, with no
interruption in power supplied to the AC loads.
Inverting
The MS2000’s inverting function:
• produces 120 volts AC from your batteries
• delivers 2000 watts of power on a continuous basis and 5000 watts of surge
power to start loads like pumps and refrigerators.
To prevent power being drawn needlessly from the batteries, Xantrex® has
included the load sensing feature.
Load Sense Mode To reduce battery draw, you can turn on Load Sense Mode
with the System Control Panel. In Load Sense Mode, the inverter periodically
sends out a search pulse to see whether a load is present. If it finds a load, the
inverter will turn on. You can adjust the interval between load sense pulses, and
you can also adjust the load power at which the inverter will turn on. If no load is
found, then the inverter will continue in Load Sense mode, which reduces the
inverter draw from the battery to a minimum.
In Load Sense mode, there’s a short delay—up to the interval you’ve set—
between the time you turn on a load and the time the inverter/charger delivers
power. Load Sense mode can be disabled at any time if you find the delay to be
inconvenient.
Charging
The MS2000’s charging function:
• produces 100 amps to charge your batteries
• equalizes flooded, lead acid batteries