Outback Power Systems MX60 Installation And User Manual page 9

Pv mppt charge controller
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Charger Parameters
The charger parameters that are automatically adjusted when the nominal battery system
voltage is set can be modified. The default ABSORB Volts and FLOAT Volts setpoints are based on average lead acid
battery systems. The default charger current limit is 60 Amps. If the manufacturer of the batteries you are using recom-
mends different ABSORB Volts and FLOAT Volts setpoints you can change the default setpoints using the Charger Set-
Up Screen shown in Figure 7. If your system requires current limiting other than 60 Amps due to breaker or wire rating
you can change the current limit setpoint using this screen.
Enter the Charger Set-Up Screen from the Main Status Screen (Figure 6) by pushing button #1 (Button under KWh).
Pressing "NEXT" selects which parameter you are going to increase or decrease. The one that is presently selected will
have a * in front of it. You may need to re-enter your access code for this set-up screen.
PRESS BUTTON #1
ON MAIN STATUS
PRESS "EXIT" TO
SCREEN TO ENTER
CONTINUE TO THE
CHARGER SET-UP
AUXILIARY RELAY
SCREEN
SCREEN
Figure 7 Charger Set-up Screen
Auxiliary Output
The user can set the function for this secondary control circuit. Pressing "NEXT" selects which
parameter you are going to increase or decrease. The choices are: Manual, Disabled, Diversion, Low Battery
Disconnect, and External. The terminal marked "Aux" supplies a 12 VDC at 200 milliamp max output. This output can
be used to power the coil of a contactor or relay. It can also directly drive a small piezo buzzer or a small 12V LED indi-
cator.
Manual Mode: You can turn on and off the AUX output manually from the MX60 keypad.
Disabled: The AUX output terminals have no output.
Diversion Mode: Used when a wind or hydro generator is connected directly to the batteries and excess power needs
to be diverted when the battery is full. This mode can also be used to turn on a fan for battery box ventilation. The AUX
output terminal will become active (produce 12VDC) when the battery voltage reaches ABSORB or FLOAT voltage
minus an adjustable value. The value is adjustable in tenths of a volt from 0.1 to 5.0 volts. There is a fixed minimum time
period of 15 seconds for the AUX output terminals to be energized.
Low Battery Disconnect Mode / Load Management Power Shedding: The Aux output terminals are energize when
the battery voltage drops below a low battery set point for a time delay period.The time period is adjustable from 0 - 254
minutes.
Remote Control: A MATE can control the operation of the Aux output in the MX controller. Only one MX or FX device's
Aux control output can be controlled by the MATE.
PRESS "EXIT" TO
CONTINUE TO THE
BACKLIGHT
CONTROL SCREEN
Figure 8 Auxiliary Output Set-up Screen
9

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