The following table summarizes all alarm LEDs:
| LED | Alarm Active | Condition Detected | Possible Cause(s) | Configurable Set Point | Relay Activated |
|---|---|---|---|---|---|
| AC ON | N/A | AC power present on AC Input Breaker (CB1) & breaker closed | N/A | N/A | N/A |
| High DC Voltage | High DC Voltage | DC bus voltage sensed by Main Control Board is higher than High DC Voltage alarm set point | Rectifier failure | High DC Alarm (V), Sect. 4.2 | Common Alarm |
| Low DC Voltage | Low DC Voltage | DC bus voltage sensed by Main Control Board is lower than Low DC Voltage alarm set point | Rectifier failure, battery discharged, shorted DC bus | Low DC Alarm (V), Sect. 4.2 | Common Alarm |
| DC Output Failure | DC Output Failure | Charger cannot support connected load, DC bus voltage is below desired set point voltage and charger is NOT in current limit | Improperly tapped AC input or defective rectifier | N/A | Common Alarm |
| AC Input Failure | AC Input Failure | AC input voltage is detected to be below 75% of nominal | Improperly tapped AC input or a missing phase | N/A | Common Alarm |
| Positive (+) Ground Fault | Positive (+) Ground Fault | Main Control Board (A1) senses leakage path from positive (+) DC bus to earth ground | Dirt or electrolyte on battery surface or connections | Positive (+) Ground Fault Sensitivity, Sect. 4.3 | Common Alarm |
| Negative (-) Ground Fault | Negative (-) Ground Fault | Main Control Board (A1) senses leakage path from negative (-) DC bus to earth ground | Dirt or electrolyte on battery surface or connections | Negative (-) Ground Fault Sensitivity, Sect. 4.3 | Common Alarm |
| Common Alarm | One or more Legacy or Advanced Alarms | Any one (1) legacy alarm in previous six (6) rows, or advanced alarms that do not have a dedicated LED | Any of above | Can set which Advanced Alarms activate Common Alarm | Common Alarm |
Last modified:
2 August 2023