9
2.4
Alarms
As a standard feature of the A39DS, there are multiple alarms available that will be displayed on the LCD during
an event. A “Failure” LED
is illuminated if any the following alarms occur:
•
AC Failure
•
Low AC Input Voltage
•
High AC Input Voltage
•
High DC Voltage
•
Low DC Current
2.4.1 Understanding the Alarms & Statuses
AC FAIL ALARM
will trigger, and the red “FAILURE” LED will turn on if the AC power to the charger is lost for
longer than 20 seconds. The alarm will automatically reset when AC power is restored to the charger. When AC
power is lost, the front panel display and indicators will remain powered by the connected batteries.
LOW ACV ALARM
will trigger, and the red “FAILURE” LED will turn on if the AC input falls 12% below the
nominal input for longer than 20 seconds. The alarm will automatically reset when AC input returns to normal
state. When AC power is lost, the front panel display and indicators will remain powered by the connected
batteries.
HIGH ACV ALARM
will trigger, and the red “FAILURE” LED will turn on if the AC input rises 12% above the
nominal input for longer than 20 seconds. The alarm will automatically reset when AC input returns to normal
state.
HIGH DC VOLTAGE ALARM
will trigger, and the red “FAILURE” LED will turn on if the DC voltage rises above
the charger’s maximum output voltage setting for longer than 5 seconds. See below:
•
The 30V model has a maximum output voltage setting of 30V.
•
The 60V model has a maximum output voltage setting of 60V.
•
The 90V model has a maximum output voltage setting of 90V.
•
The 150V model has a maximum output voltage setting of 150V.
NOTE:
All alarms automatically reset when the alarm condition is corrected.
LOW DC CURRENT ALARM
will trigger and the red “FAILURE” LED will turn on if the output DC current of the
charger falls below the alarm threshold for longer than 5 seconds. This can be caused by the battery being
disconnected or if the battery has reached a full charge. This could also be the result of mis-adjustments of the
output voltage settings. This alarm can be disabled if considered a nuisance alarm.
CURRENT LIMIT
will trigger and the amber “CURRENT LIMIT” LED will turn on when the charger is in current
limit, i.e. charging the battery at the current limit set point.
80%
will trigger and the green “80% / COMPLETE” LED will flash when the charger is in constant voltage
mode, i.e. charging the battery at the output voltage set point.
COMPLETE
will trigger and the green “80% / COMPLETE” LED will turn on solid when the charger has finished
charging the battery. Charger output will automatically shut off.
CHARGING
will trigger and the green “CHARGING” LED will turn on solid when the charger is charging the
battery. Charger output will be present.
2.5
Additional Option Connections
The A39DS charger may have been outfitted with several optional accessories or option packages. To determine
the options included (if any) and the suggested connections, refer to the cover page of the manual package and
the option instructions included with the A39DS charger instruction manual.
