OutBack Power Programming Guide

Page 38
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 Enabled — enables (Y) or disables (N) the AC
Coupling function.
 AUX 12V Port — selects the HUB port with the
designated AC-coupled Radian inverter.
NOTE: Only one Radian inverter can be AC
Coupled with this programming.
Use the soft keys to select No or Yes.
 If <No> is selected, the screen returns to the Battery
Monitor menu. No changes will be made to any settings.
 If <Yes> is selected, the battery monitor’s settings
immediately change to the original factory values. The
screen displays the message MATE3s Restored to
Factory Defaults. A <Continue> soft key will appear.
Pressing this key returns the screen to the MATE3s menu.
M-12. Reset to Factory Defaults
This screen allows the user to erase the settings
from the MATE3s and start over with the values
programmed at the factory. Entering this screen
brings up the query Reset MATE3s to Factory
Defaults?
M-10. FLEXtime Schedule
The inverter can switch
between AC input modes
based on time of day.
The input mode selection,
previously fixed, becomes flexible according to a schedule.
Three mode and time selections are available.
 Input Mode — the mode used during the selected time.
 Hour and Minute — the selection (00:00 to 23:59) which defines
that part of the schedule.
NOTES:
 The times under each selection are start times only. The stop time
is defined by the start time for the next selection.
 Leaving a selection blank means it will be skipped. If all selections
are blank, this function will not operate.
 FLEXtime Schedule is available for FXR-class and Radian-class
inverters only.
M-11. Automatic Daily Reboot
The MATE3s can reboot
itself every 24 hours.
This is a backup measure
in the event of a display
freeze or a disconnect from OPTICS RE.
 Reboot every 24 hours — enables (Y) or disables (N) this function.
NOTE: This function is not recommended if AGS is in use.
The next two items are related to the system indicators
on the Home screen and are titled Battery Status on
the screen. (See the MATE3s Overview Guide for
home screens.)
 Low SOC Warning Level — if the batteries
decrease to this state of charge (SOC), an event
will be registered in the event log, and the Home
screen will display ! , a battery warning. (See
page 50.) Settable range is 20% to 99%.
 Critical SOC Warning Level — if the batteries
decrease to this state of charge (SOC), an event
will be registered in the event log, and the Home
screen will display X , a warning that the
batteries have been critically discharged. (See
page 50.) Settable range is 10% to 98%.
M-8. FLEXnet DC Advanced Control
This menu allows certain advanced functions to be used with the FLEXnet DC
(FN-DC) if installed. See the FN-DC literature for more information.
 Enable Charge Termination Control — allows the battery charging to be stopped for all inverters on the system, once the charging
parameters of the FN-DC have been met. (See page 22 for these parameters.) Options are N (no) or Y (yes).
 Enable Auto Grid-Tie Control — if grid-interactive inverters are present on the system, this control allows their grid-interactive
function to be turned off at midnight each night. This function allows the charge controllers to complete a charge cycle at the
beginning of the next day before the system begins selling. It prevents the batteries from remaining at or below the Sell voltage for
extended periods without receiving a full charge.
If grid-interactive inverters are not present, this item is inoperative. Options are N (no) or Y (yes). When Y is selected, "grid-tie"
mode will be enabled on grid-interactive inverters anytime the battery monitor signals that charge parameters have been met.
NOTE: When grid-tie mode is enabled with this function, the Offset Enable menu item (see page 15) will change to Y (yes). The
inverter will become capable of selling even if the function had been previously turned off.
M-9. AC Coupled Control
This menu activates the AC Coupling function of a Radian-class inverter. Using the GSLC175-AC-120/240,
the Radian’s output can interface with the output of another grid-tied inverter.
When Enabled, the Radian 12V AUX output closes the ROCB (remote-operated circuit breaker) in the GS
Load Center. This connects the Radian inverter’s output bus to that of the grid-tied inverter.
This function works with all Radian AC input modes except Generator. It must be used on the GRID input.
Connecting a source in Generator mode, or connecting to the GEN input in any mode, causes the ROCB
to open.
While the grid is present, the following operations can occur.
 During the day, the Radian transfers excess AC power from the grid-tied inverter and back to the utility grid during the day. It also
transfers grid power to the critical loads panel at night.
During a grid failure, the following operations can occur.
 The Radian’s own output provides a stable AC source to the grid-tied inverter. This allows the grid-tied inverter to remain active
without the grid. The grid-tied inverter continues to deliver power to any loads present on the Radian’s output. This is applicable
during a grid failure, or in an off-grid system.
 Any AC power not consumed by the loads is converted by the Radian to DC power and delivered to the battery bank.
 Power delivered to the battery bank is controlled by several reference (target) voltages, particularly the Radian battery charger
settings. The settings Absorb Voltage and Float Voltage are used as reference voltages. These are the same voltages that are
used by the inverter’s Offset function. (See the Operator’s Manual for more information on this function.)
 If the battery voltage exceeds the target, the 12V AUX output will open the ROCB. This removes the AC source from the grid-tied
inverter, shutting it down. This will also remove the source of excess battery energy. The Radian still powers the critical loads.
 The 12V AUX output will reconnect the Radian’s output to the grid-tied inverter when the battery voltage decreases to a safe level.
NOTES:
The GridZero AC input mode is not recommended in an AC-coupled system due to several incompatible priorities.
See the OutBack website, www.outbackpower.com, for detailed information on AC coupling.
FLEXtime ScheduleMATE3s Settings
900-0125-12-01 Rev A
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