Outback Power Systems GS4048A Operators Manual - Manual (Page 47)

Operation
900-0161-01-00 Rev A 45
System Display-Based Functions
A system display such as the OutBack MATE3 can provide functions not available in the inverter.
These functions are summarized here to provide a better idea of overall system capabilities.
The system display must be present for these functions to operate. If a function is set up (or already in
operation) but the system display is removed, the function will not operate.
Advanced Generator Start (AGS)
As noted under the Gen Alert function (see Table 5), the system is capable of starting a generator.
Gen Alert simply starts and stops the generator based on battery voltage. For more advanced control,
the inverter system can use the Advanced Generator Start (AGS) function, which utilizes the entire
three-stage charging cycle. It can start according to battery voltage, inverter load, time of day, and
other criteria. AGS has a quiet time application which restricts the generator from starting at
inconvenient times. Additional applications are also available.
IMPORTANT:
This function is higher-priority than Gen Alert or any other inverter function. It can
activate the 12V AUX or RELAY AUX even if the inverter has disabled them. When AGS is
in use, Gen Alert and other AUX functions should be disabled on that AUX output by
setting it to OFF. This will avoid programming conflicts.
IMPORTANT:
When using AGS (or Gen Alert), the generator must be connected to the inverter’s GEN
terminals. If the input priority is set to GRID and the GRID terminals are energized, an
automatically controlled generator will shut down. This prevents an automatic
generator from working correctly when using the
GRID terminals.
Grid Functions
The following functions affect the transfer of the Radian inverter to and from an AC source (usually the
utility grid). These functions are based in the system display because they are system-wide. They
affect the transfer of all inverters on the system.
High Battery Transfer (HBX)
In HBX mode, the system is connected to the utility grid. However, it will use battery power as the first
priority. The utility grid is locked out until needed.
The system runs on battery-supplied power for as long as the batteries can be sustained. It is
expected that the system will be supplied by renewable sources such as PV power. When the
batteries become depleted, the system reconnects to the utility grid to operate the loads.
The batteries may be recharged during this time using the renewable source. When the batteries are
recharged to a high enough voltage, the system transfers back to the batteries as the primary source
(hence the name High Battery Transfer).
NOTE: The inverter’s charger should be off. High Battery Transfer mode is intended to use only the
renewable source for charging batteries. Renewable charging is the motivator for returning to battery
(and renewable) operation. Use of the inverter’s charger interferes with this priority. It also may not
charge effectively.