Table 2 Summary Of Input Modes - Outback Power Systems FXR2012E Operator's Manual

Mode Summary
Generator Accepts power
from an
irregular or
low-quality
AC source
Adds battery
Support
power to
augment an
AC source that
has limited
output
Grid- Inverter sells
excess power
Tied
(renewable)
to utility;
available in
24-volt and
48-volt
models only
In grid failure,
UPS
unit switches
to batteries
with fastest
possible
response time
Backup In grid failure,
unit switches
batteries to
support loads;
this is the
default mode
Mini Grid Stays off grid
most of the
time; only uses
grid when
batteries low
GridZero On-grid but
actual grid use
is minimized
("zeroed") with
battery and
renewable
power; does
not sell or
charge
900-0169-01-00 Rev A
Table 2 Summary of Input Modes
Benefits

Can use AC that may be
unusable in other modes

Can charge even with a
poor generator or
low-quality AC source

Can use battery power
in conjunction with
AC source

Offset operation sends
excess DC to loads

Bidirectional input

Can reduce utility bills
and still provide backup

Offset operation sends
excess DC to loads

Any additional Offset
excess is sold to the grid
Quick backup for
sensitive devices during
grid outage

Simple use compared to
other modes; often
used with generators for
this reason

Less idle power than UPS

Does not drain battery as
in Support

Can minimize/eliminate
dependence on grid

Offset operation sends
excess DC to loads (but
only when on grid)

Can minimize
dependence on grid

Offset operation sends
excess DC to loads at
adjustable rate

Remains on-grid to avoid
transfer problems
Cautions

Will pass irregular or
low-quality power to
the output; could
damage sensitive loads

Offset unavailable

Drains batteries during
support; intended for
intermittent use only

May not function with
low-quality AC source

Requires utility
approval

Other approvals may be
required depending on
electrical codes

Has exact requirements
for accepting AC input

Requires renewable
energy source

Uses higher idle power
than other modes

Search function
unavailable

Offset unavailable
Has none of the special
functions described in
other modes

Will not work properly
unless renewable
source is above a
certain size

Conflicts with related
modes in MATE3

Discharges batteries
while remaining on grid

Will not work properly
unless renewable
source is above a
certain size

Battery charger
inoperative
Operation
Intended Charger
Performs three-stage
Source:
charge and goes
Generator
silent as specified by
Loads:
settings
Non-
sensitive
devices
Source: Performs three-stage
charge and goes
Grid or
silent as specified by
Generator
user settings
Loads:
Can be
larger than
AC source
Performs three-stage
Source:
Grid charge and goes
silent as specified by
Loads:
user settings
Any type
Performs three-stage
Source:
charge and goes
Grid
silent as specified by
Loads:
user settings
PC, audio,
video, etc.
Performs three-stage
Source:
charge and goes
Grid or
Generator silent as specified by
user settings
Loads:
Any type
Performs three-stage
Source:
Grid charge on reconnect;
if charger is disabled,
Loads:
inverter emulates
Any type
charge cycle from
external source and
reacts accordingly
Charger inoperative;
Source:
batteries must be
Grid
charged using an
Loads:
external (renewable)
Any type
energy source
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