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900-0125-12-01 Rev A
©2017 OutBack Power Technologies. All Rights Reserved.
Active High
C-6 (Auxiliary Output, continued)
Aux Modes
Aux Mode
includes nine functions with automatic criteria. They do
not necessarily appear in the order shown here.
Vent Fan
appears
first if the controller is set at factory default values; otherwise, it
displays the last option selected. (AUX modes are described in the
charge controller
Owner’s Manual
.)
Vent Fan
activates the AUX output in response to high DC
(battery) voltage. It can operate a small fan. The output
deactivates when the voltage drops below the set point.
Enable Voltage
—
The high-voltage
setting for activation.
PV Trigger
activates the AUX output due to high the PV voltage.
This can operate an alarm to indicate a dangerously high V
oc
.
Enable Voltage
— The high-voltage setting for activation
(if
Active High
).
Hold Time
— The delay after reaching
Enable Voltage
before AUX deactivation.
Active: High
or
Low
—
Active High
activates the output
when conditions are met.
Active Low
deactivates the
output when the same conditions are met but activates it
the rest of the time.
Error Output
responds to “low battery” or “failure to charge”
conditions. Low battery is defined by a set point. Failure to
charge means the PV fails to exceed the battery voltage by
3 Vdc for 26 consecutive hours. This can operate an alarm for
an array problem.
Low Battery Voltage
— The low-voltage
setting for deactivation.
NOTE
: This option is “Active Low” only.
Night Light
uses the PV voltage as a light sensor.
When it drops below a settable voltage, the AUX
output activates. It remains active for a certain amount
of time. It can operate lights or devices after dark.
Active: High
or
Low
—
Active High
activates
the output when conditions are met;
Active Low
deactivates the output when the same conditions
are met but activates it the rest of the time.
Diversion:Relay
activates the AUX output upon
reaching the target voltage for charging. See below.
Diversion:Solid St
activates the AUX output upon
reaching the target voltage for charging. The output is
pulse width modulated (PWM) for exact control.
Both functions are used to control a diversion load.
Active: High
or
Low
—
Active High
activates the
output when conditions are met;
Active Low
deactivates the output when the same conditions
are met but activates it the rest of the time. (Not
available in
Diversion:Solid
St
.)
Relative Voltage
— Activates the output within a
certain range of the target (Float, Absorb, etc.).
Hysteresis
— Adjusts the allowable voltage range
for the AUX to continue after activation.
Low Batt Disconnect
activates the AUX output
upon reaching low battery voltage. It can be used to
disconnect non-critical loads.
Disconnect
— The low-voltage setting at which
the output is activated after
Disconnect Delay
.
Re-Connect
— The setting at which the output
is deactivated again after reaching
Disconnect
.
Disconnect Delay
— The time after reaching
Disconnect
before the output is activated.
Float
activates the AUX output when the charge
controller enters the Float stage. It can operate a
“charged” indicator.
Not depicted. No settable parameters.
Remote
allows the AUX output to be activated by manual or
automatic commands based in the MATE3s (such as AGS).
Not depicted. No settable parameters.
Use the soft keys to select
No
or
Yes
.
If <
No
> is selected, the screen returns to the
Charge
Controller
menu. No changes will be made to any settings.
If <
Yes
> is selected, the controller’s settings immediately
change to the original factory values. The screen displays the
message
Charge Controller Restored to Factory Defaults
.
A <
Continue
> soft key will appear. Pressing this key
returns the screen to the
Charge Controller
menu.
C-9. Reset to Factory Defaults
This screen allows the user to erase the settings from
the selected charge controller and start over with the
values programmed at the factory. These values are
listed in the charge controller
Owner’s Manual
.
Entering this screen brings up the query
Reset
Charge Controller to Factory Defaults?
Threshold
— The low-voltage
setting that activates the output
(following the
Hysteresis Time
).
ON Time
— The length of time
the output remains active.
NOTE
: All items function identically
for both
Diversion: Relay
and
Solid
St
, except for
Active: High
or
Low
.
Hold
— Sets the amount of time
allowed after exiting the range
before the output is deactivated
(if
Active High)
.
Delay
— Adjusts the delay time
before the output is activated
(if
Active High)
.
IMPORTANT:
Calibration does not change the actual
voltage of the charge controller, only
the reading of that voltage.
C-8. Calibrate
This menu allows adjustment of the
voltmeter. Calibration can improve system
performance. Multiple controllers can
achieve voltage targets at the same time.
One or more uncalibrated controllers may
stop charging because they read the
batteries as fully charged. This is shown
on the FLEXmax 60 or 80 display as a
mode called “EX-ABSORB.” (See the
FLEXmax literature for more information.)
Battery Voltage
— Calibrates the DC voltage
measurement made at the controller’s battery
terminals.
To calibrate the charge controller:
1. Place an accurate DC voltmeter at the
battery terminals (not the controller
terminals).
2. Operate the controller while delivering
normal PV current, then adjust the
Battery Voltage
setting until the
inverter's battery voltage matches the
reading on the DC voltmeter.
C-7. Restart Mode
This setting allows the user to
choose between continuous
MPP tracking, or occasional
restarts of the sweeping
process. A restart means the
controller abandons the
existing maximum power
point. It then “re-sweeps”, or
begins gathering new power
point data.
Restart Mode
–
0
,
1
, or
2
0
— Initial sweep and then
continuous MPP tracking.
1
— Automatic re-sweep
every 90 minutes if controller
is in an MPPT mode (
MPPT
Float
,
MPPT Bulk
etc).
2
— Automatic re-sweep
every 90 minutes if controller
is in any charging mode.
Charge Controller
Charge Controller Settings
