Operation
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Each distinct mode, function, or operation is accompanied by a symbol representing the inverter and
that operation:
The symbols may have other features depending on the operation.
AC Input Connection
The FX inverter has one set of input connections. Only one AC source can be physically wired to it at any
time. However, two different AC sources (usually shore power and generator) can be used with an
external transfer switch. The inverter can be programmed with separate input criteria for each source.
See the
FX Mobile Series Installation Manual
for more information on connections.
The inverter’s two input selections can be programmed for separate input modes (see below). The
selection (
Grid
or
Gen
) can be chosen in the
AC Input and Current Limit
menu. (See the MATE3 menu
tables beginning on page 53.)
NOTE:
The input types are labeled for grid and generator due to common conventions, not
because of inverter requirements. Each selection can accept any AC source as long as it
meets the requirements of the FX inverter and the selected input mode. If necessary,
the Gen selection can accept grid power. The opposite is also true.
Description of Inverter Operations
The items in this section are operations common to all FX inverters. These are used in most or all of the
input modes described in the preceding section.
Some of the items in this section are functions which can be manually selected, enabled, or customized.
Other items are general topics or applications for the inverter. These items may not have their own
menus, but their activity can still be influenced or optimized by changing certain settings.
Any of these items may need to be adjusted so that the inverter is best matched to a particular
application. The operator should review these items to see which are applicable.
All items described as settable or adjustable have set points which can be accessed using the
system display. The default settings and ranges of adjustment are listed in the MATE3 menu tables which
begin on page 53 of this manual.
Inverting
This is the FX inverter’s primary task. The inverter converts DC voltage from batteries into AC voltage that
is usable by AC appliances or devices. It will continue to do this as long as the batteries have sufficient
energy. The batteries can be supplied or recharged from other sources, such as PV or alternator power.
The inverter’s design uses a transformer and a high-frequency H-Bridge FET module to achieve the
required high-wattage AC output. The inverter can deliver the rated wattage continuously at 25°C. The
maximum output is derated at temperatures exceeding 25°C. See page 43 for these wattages.
Measure the total load wattage so that it does not exceed the inverter’s capacity. The inverter cannot
maintain its AC voltage under an excessive load. It will shut down with a
Low Output Voltage
error.
AC IN
AC OUT
DC
TRANSFER
These items represent the input from the AC
source, the output to the AC loads, DC functions
(inverting, charging, etc.), and the transfer relay.
Arrows on each symbol represent power flow.
