Power On/Off Button; Green Status Led; Yellow Charger Status Led; Search Sense Mode - Xantrex7 UX - REV A Owner's Manual

4.0 Operation
Control Panel (continued)

Power ON/OFF Button

Green Status LED

Yellow Charger Status LED

Search Sense Mode

Search Sense Operation

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This button turns the inverter on and off: on initial power up, after connecting
the batteries, press it twice. The ON/OFF button also resets the inverter in the
event it shuts down completely due to a fault condition. To reset the unit after a
fault condition, press the ON/OFF button only one time. The ON/OFF button
turns off only the inverter portion of the unit. Anytime AC input power is
present, the battery charger section (if installed) will be operable.
• Steady: Unit is inverting.
• Fast blinking: Unit is in search mode.
• Fast, erratic blinking: Indicates an error condition, such as a low-battery
voltage, high-battery voltage, overheating, or over-current condition. (Almost
looks like a "flicker".)
If your unit is equipped with the optional standby charger, this yellow LED will be
lit when the unit is charging. The greater the charging current, the brighter the
LED will shine. When battery voltage is far below full charge, the LED will glow
brightest. When the LED is not illuminated, battery voltage is higher than both
the Absorb and the Float voltage charging threshold or another charger is
connected in parallel with the unit.
The inverter incorporates a power-saving "Search Sense Mode" that minimizes
power drain when there is no load connected by reducing the inverter's output to
brief test pulses. When a load exceeding the threshold specified on the control
panel is detected, the inverter's output goes to full voltage. The sensitivity
threshold is adjustable from about 5 watts to 100 watts. When the inverter is in
search mode, the LED will slowly flash green.
Search Control Knob: The control panel knob labeled "Search" sets the
sensitivity level in watts that will activate the inverter. Turn the knob full
counterclockwise to "Defeat" or disable the search mode. The adjustment range
is from 5 to 100 watts.
If problem loads can't be eliminated, disable the Search Sense Mode and the
inverter will always remain at full output voltage.
See Section 5, Troubleshooting, page 58, for more information about potential
problem loads when using Search Mode.
While idling in Search Sense Mode, the inverter sends out a pulse about six times
per second. This electrical pulse travels through the AC wiring "looking" for
loads that are connected to the system.
When a load is detected, the inverter determines the wattage of the load and
checks to see if it is greater than the threshold set by the operator. This threshold
point is adjustable with the Search Control knob on the control panel. The
lowest setting is about 5 watts and the highest setting is 100 watts.
©2002 Xantrex Technology Inc. All Rights Reserved.
P/N 975-0026-01-01 Rev A 06/2002