Xantrex Technology RS3000 - Manual (Page 60)

Configuration
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RS3000 Device Menu
The RS3000 device menu displays status information on the different
modes of the inverter/charger. The first three or four lines of the device
screen displays dynamic content that changes, depending on what mode
that the RS3000 is in.
Modes
The first line on the device menu indicates which mode that the RS3000 is
in. Table 3-1 defines the seven different modes: Invert, Bulk, Absorption,
Float, AC Bypass (AC Passthru), Load Sense, and Equalize.
Table 3-1 Modes
Mode Description
Invert The RS3000 is converting DC power to AC power.
Bulk The first stage of three-stage battery charging. Current is
supplied to the batteries at a constant rate while voltage
gradually rises.
Absorption The second stage of three-stage battery charging. Voltage
remains constant and current reduces as the battery
becomes charged. This ensures complete charging.
Float The third stage of three-stage battery charging. After the
batteries reach full charge, charging voltage is reduced to a
lower level to prevent gassing and to prolong battery life.
This stage is often referred to as a maintenance charge.
Rather than charging a battery, it keeps an already-charged
battery from discharging while providing load current.
AC Bypass
(ACPassthru) AC input from an AC source like the utility grid or from a
generator is allowed to pass through the unit to operate
connected AC loads. The charger is not enabled but AC is
qualified as good and passed through the unit.
Load Sense In order to minimize power draw from the battery, the
inverter will periodically check if a load is connected when
the inverter is enabled.
Equalize To improve the life and performance of a non-sealed,
flooded (or wet) battery, the RS3000’s multi-stage charging
cycle includes a manual equalize mode that can be used if
recommended by the battery manufacturer.