3.0 OPERATION
47
©2000 Xantrex Technology Inc.
Front Panel Controls and Indicators
(continued)
Battery High/Battery Low LED - Red/Green
(error condition)
The Battery Hi / Battery Low LED is a dual color, dual function indicator. Whenever battery
voltage exceeds a safe value, the LED lights red to indicate the condition. This value is typically
15.5 volts DC for a 12 volt system (31 volts DC for a 24 volt system). If the condition persists, the
inverter will shut down until the battery voltage returns to a safe level and then restart.
NOTE: In renewable energy applications (solar, wind, hydro, etc.) the DC charge controllers must be
set to a level below the inverters maximum input voltage or the inverter shuts OFF.
Whenever the battery voltage drops to its lowest (safe) level (approximately 20% of battery
capacity), the LED lights green to indicate the condition. If the condition persists, the inverter will
shut down until the battery voltage returns to a safe level and then restart.
NOTE: The inverter automatically restarts when the following error conditions are detected: LOW/
HIGH BATTERY, OVER TEMPERATURE, or a quick duration SHORTED OUTPUT or OVER-
CURRENT. The inverter shuts OFF and requires a MANUAL restart if the following conditions are
detected: a
prolonged
overload condition (approximately 10 seconds) or the inverters output is
connected directly to an AC power source (utility grid or generator).
Charger LED - Orange / Green
The Charger LED is a dual color, triple function indicator. When the charger is in Bulk mode,
the LED lights orange. When the charger is in Absorption mode, the LED blinks orange. When
the charger is in Float mode, the LED lights green.
NOTE: The battery charger control circuit operates from the battery voltage. If the battery voltage
falls below 7 volts, the inverter/charger will not operate. The batteries must first be recharged using
a stand-alone charger to bring the voltage up to a level where the inverter/charger can operate.
Audible Indicator
(internal)
A buzzer is located on the control board as an audible alert to fault conditions such as Battery
High/Battery Low, or Overload. Steady buzzing indicates an impending inverter shut down. A
pulsing chirp indicates the inverter is temporarily off-line due to a fault condition (either within the
inverter or related to the system).
Summary of Contents for Trace DR Series
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