8.0 USER INTERFACE
There are two heads-up LEDs to indicate system status and a recessed test button to
initiate the inverter to run in Inverter Mode. Both LED1 and LED2 are bi-
color LED’s and
will illuminate either solid, blinking, or change between colors for different modes of
operation or faults. There are two distinct fault levels
–
Minor and Major. A Minor alarm
will not cause the system to suspend output and will operate although the fault exists. A
Major alarm will cause the system to cease all outputs and will need to be reset. If a
Major alarm exists, it must be identified and fixed before the system can be operated.
To reset the Major Alarm, simply press the System Test button and the system will start
its self-testing diagnostics to verify the fault has been cleared.
8.1 LED1
–
Charging Mode and Line Input Status
When the LED1 is illuminated green, the system is charging the batteries and the AC
is present. If LED1 is solid green, the batteries are fully charged or near fully charged. If
the LED1 is blinking green, the batteries are being charged at a high capacity and they
are not at the float voltage level yet. When the LED1 is red, it is an alarm/fault condition.
8.2 LED2
–
Inverter Mode and Battery Level Indication
When the LED2 is illuminated yellow, the system is running on Inverter Mode. If the
LED2 is solid Yellow, the voltage of the battery is above 11.4 and 22.8 for 12 and 24 VDC
systems respectively. If the LED2 is blinking Yellow, the battery voltage is getting low
and has less than 30 minutes of run time left. When LED2 is red, it is in an alarm/fault
condition.
8.3 Minor Alarm
The systems minor alarm occurs while in Inverter Mode if a load change has been
detected. The system will automatically store the operating output current when it
transfers to Inverter Mode after five seconds. It will then actively compare the stored
value against the current value. If the current value of the load current deviates by more
than 10 percent high or low, it will generate a load change alarm
–
which is a Minor
Alarm. If this alarm is present, the LED2 will blink between a Yellow and Red color.
8.4 Major Alarms
The system Major alarm can occur on three distinct modes
–
System Start-Up Mode,
Charge Mode and Inverter Mode. Major Alarms are latching faults which must be
addressed and the system must be reset by either pressing the System Test button or by
a power cycle reset
–
turning the System ON/OFF switch off and then back on.
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