Xantrex Technology PH1800 - Manual (Page 28)

Operation
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Operating Mode LEDs
Bypass LED When AC power source is available, the PowerHub 1800 will pass the
power through to the loads and will also keep the battery bank charged
and usable. The Bypass LED will illuminate when the unit is in this mode.
On initial power up or if transferring from Inverter Mode back to Bypass
Mode, the PowerHub takes approximately 20 seconds to identify if an AC
source is available and stable. If the AC source is within the acceptable
voltage range, the PowerHub will automatically enter Bypass Mode.
During this time, the Bypass Mode LED will flash and power will still be
provided by the inverter. When the AC source has been qualified, the
Bypass Mode LED will stop flashing and illuminates solid and the loads
will be powered by the AC source.
Inverter LED If the PowerHub is on with AC present and the AC source fails, the
PowerHub 1800 automatically switches to Inverter Mode within 40
milliseconds. When in Inverter mode, the inverter is using the power
stored in the battery bank to provide power to the loads and the Inverter
LED will illuminate.
Status LEDs
Input LEDs
Select Button
(Red) Pressing the red Select Button cycles the output on the display through the
available Input/Output power levels.
If the Select button is not pushed within 10 seconds, the display will
automatically return to the Net Power value.
Wind LED When the Select Button is pressed until the Wind LED is illuminated, the
Wind Input wattage levels are displayed in kilowatts. These values are the
inputs on the 80 A DC input terminals.
WARNING: Shock Hazard
The ON/OFF Button controls the output of the inverter only. It does not control
or turn off the AC output in Bypass Mode. Therefore, if any power is available to
the unit, the unit will function in Bypass Mode and power will be available at all
outlet or output terminals even if the PowerHub is turned OFF. The blue AC
Indicator LED between the top two AC outlets on the front panel will illuminate
if power is available at the front four outlets.