Power Supply Board
Red (DC)
Green (AC)
ON
ON
ON
OFF
OFF
ON
OFF
OFF
AL800LGK9E - Logic Board
LED
OFF
Output 1
Normal
Output 2
Normal
Output 3
Normal
Output 4
Normal
Input 1
Normal
Input 2
Normal
Fault
Normal
*
Indicates current trouble condition. When trouble (open, short or ground) occurs on a specific output, the
corresponding red output LED, [OUT1-OUT4] will blink. The corresponding green input LED will
blink as well. Loop trouble will report within 30 seconds.
** Indicates trouble condition memory. When a trouble condition restores, the units red output LED,
[OUT1-OUT4] will blink with a shorter and distinctly a different duration.
The green input LEDs will be off (normal condition).
To reset the memory depress the reset button (Fig. 8c, pg. 11). The LED(s) will extinguish.
Note: If indicating circuits have been restored, memory reset is not required for normal operation of the unit.
- 8 -
LED Diagnostics:
Power Supply Status
Normal operating condition.
Loss of AC. Stand-by battery is supplying power.
No DC output.
Loss of AC. Discharged or no stand-by battery. No DC output.
ON
Alarm Condition
Alarm Condition
Alarm Condition
Alarm Condition
Alarm Condition
Alarm Condition
Alarm Condition
BLINK (LONG)*
Trouble Condition
Trouble Condition
Trouble Condition
Trouble Condition
Trouble Condition
Trouble Condition
–
BLINK (SHORT)**
Trouble Condition Memory
Trouble Condition Memory
Trouble Condition Memory
Trouble Condition Memory
–
–
–
AL1002ULADA / R1002ULADA
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