Outback Power Systems 80 Powering Up, Power Up Screen, OutBack12V Power Systems FLEXmax

4. Powering Up

The FLEXmax 80 power-up sequence first activates the unit and theSELECT VERSION screen (to de- termine a choice of English, Espanola, or Australian settings). A SYSTEM VOLTAGE screen soon follows. However, when it auto-detects the system’s battery voltage, in some instances the FLEXmax 80 might not reflect the correct system voltage (e.g., if a 36VDC system falls to a voltage range that could be misread as a 24VDC system). The SYSTEM VOLTAGE screens allow the user to adjust the FLEXmax 80 to the correct voltage.

Note: Be sure the PV input and battery breakers are off before starting the power-up sequence.

OFF SCREEN (this screen is initially blank at power up)

With the PV array and battery breakers off, turn on the battery breaker.

Note: The battery voltage must be at least 10.5V or higher to power up the FLEXmax 80. If the screen reads Low Battery Voltage, please see the Troubleshooting Guide on page 72.

Power Up Screen

OutBack12V

Power

Systems

FLEXmax 80

The FLEXmax 80 will show the system battery voltage in the upper right corner of the screen. The Select Version screen appears next.

NOTE:

•The FLEXmax 80’s default setting is for a 12 VDC battery.

•Change the setting after powering up the FLEXmax 80 if a different battery voltage is used.

•The PV array voltage—which must not exceed 150 VDC open circuit—is automatically detected.

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