Lamarche TPSD2 Standard Series Installation And Operation Manual

Contents

Lamarche TPSD2 Standard Series Installation And Operation Manual Manual pdf 17 page image

122.4.2 Understanding the AlarmsHIGH DCV SHUTDOWN ALARM will trigger and the red “HIGH VOLTAGE SHUT DOWN” LED will turn on if theoutput DC voltage of the charger rises above the alarm threshold for longer than 20 seconds and there is load onthe charger. This can be caused by maladjustments of the output voltage settings, or in rare cases, by a failureof an internal charger component. If the High DC Voltage Shut Down alarm activates, the DC output of the chargeris shut off by tripping the AC breaker to prevent irreversible damage to the battery. To reset, press the ALARMRESET button on the front panel, then close the AC breaker.NOTE: The High Voltage Shutdown alarm will not trigger if there is a Low Current alarm present.HIGH DCV ALARM will trigger and the red “HIGH DC VOLTAGE” LED will turn on if the output DC voltage risesabove the specified voltage threshold of the alarm for longer than 5 seconds. This can be caused bymaladjustments of the output voltage settings, or in rare cases, by a failure of an internal charger component.LOW DCV ALARM will trigger and the red “LOW DC VOLTAGE” LED will turn on if the DC voltage falls below thespecified voltage threshold of the alarm for longer than 5 seconds. This can be due to an AC Failure or the chargeris overloaded into deep-current limit. It could also be caused by maladjustments of the output voltage settings,or in rare cases, by a failure of an internal charger component.NEGATIVE GROUND ALARM will trigger and the red “NEGATIVE GROUND FAULT” LED will turn on if 1.2mA orgreater current is measured between the negative terminal of the battery and earth ground. The alarm will clearonce the negative ground condition is no longer present. If the charger has Ground Detection disabled, this alarmwill not function.POSITIVE GROUND ALARM will trigger and the red “POSITIVE GROUND FAULT” LED will turn on if 1.2mA orgreater current is measured between the positive terminal of the battery and earth ground. The alarm will clearonce the positive ground condition is no longer present. If the charger has Ground Detection disabled, this alarmwill not function.AC POWER FAIL ALARM will trigger, the green “AC ON” LED will turn off, and the red “AC FAILURE” LED willturn on when the AC power to the charger is lost. The alarm will automatically reset when AC power is restoredto the charger. When AC power is lost, the front panel display and indicators will remain powered by the connectedbatteries.SUMMARY ALARM is triggered and the “SUMMARY” LED will turn on when any of the following alarms areactivated: Low DC Voltage Positive Ground* AC Failure* High DC Voltage Negative Ground* S2A-407S Failure** Low DC Current** Optional to include in Summary Alarm** If applicableLOW DC CURRENT ALARM will trigger and the amber “LOW DC CURRENT” LED will turn on if the output DCcurrent of the charger falls below the alarm threshold for longer than 5 seconds. This can be caused by the load(if applicable) being disconnected or if the battery (if applicable) has reached a full charge. This could also be theresult of maladjustments of the output voltage settings. In rare cases, this could be the result of certain parallelsetups in which the other charger is set up to carry all the load. This alarm can be disabled if considered a nuisancealarm.Most alarms have adjustable time delays to energize; ranging from 0 through 255 seconds. Refer to Table 9 forthe factory setting of each alarm.NOTE: All alarms automatically reset when the alarm condition is corrected, except the High Voltage Shutdownalarm. Refer to the corresponding alarm description above for reset instructions.