Powering Up - Outback Power Systems FlexMax 60 User Manual

4. Powering Up

The Charge Controller power-up sequence fi rst activates the unit and the SELECT VERSION screen (to
determine 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 Charge Controller
might not refl ect 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 Charge
Controller 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)
NOTE: The battery voltage must be at least 10.5V or higher to power up the Charge Controller. If the
screen reads Low Battery Voltage, please see the Troubleshooting Guide on page 73.
Power Up Screen
OutBack
Charge Controller
17
12V
Power
Systems
With the PV array and battery breakers off , turn on the
battery breaker.
The Charge Controller will show the system battery
voltage in the upper right corner of the screen. The
Select Version screen appears next.
NOTE:
• The Charge Controller's default setting is for a 12 VDC
battery.
• Change the setting after powering up the Charge
Controller if a diff erent battery voltage is used.
• The PV array voltage—which must not exceed 150
VDC open circuit—is automatically detected.