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Ascend Single Phase Charger Operation Manual
7.4.3. Module Over Temperature
The system will provide module over temperature warning. If the over temperature persists the affected
module will shut down.
In the event of an over temperature shut-down, the charger must be restarted by cycling AC power
using the AC Input circuit breaker.
7.4.4. High DC Shutdown
The charger output will shut down if the DC voltage reaches the shutdown point of 145.2 for greater
than 10 seconds. The High DC shutdown set point range 120Vdc to 162Vdc.
The charger will have to be AC power-cycled with the AC Input breaker to restart after a high voltage
shutdown.
7.4.5. Audible Alarm
An Audible alarm is provided to annunciate any alarm. The alarm silence icon will silence
the audible alarm for 60 seconds. If a new alarm occurs after that period, the audible alarm
will turn on again.
7.4.6. Lamp Test
Lamp test will turn on the front panel Normal and Trouble LED indicators for 5 seconds to verify
operation. The Lamp test function is in the User Interface Diagnostics menu.
7.4.7. Latching Alarms
The LCD alarms and alarm relays may be configured to be latching. This allows the user to verify which
alarm occurred during an event. To turn on Latching alarms go to User interface Setup -> Adjustments ->
Latching screen.
The latching alarms(s) will remain active until the Alarm Reset button is pressed on the Alarms screen.
The Alarms screen can be reached by pressing
7.4.8. Charger Auto−Equalize
Auto-Equalize will automatically place the Charger in Equalize mode when AC power is removed for
longer than 5 minutes. Battery power must be available to the Charger. Equalize is terminated when:
The Equalize Timer expires.
•
The Float button is pressed on the User Interface.
•
•
The battery reaches the Equalize voltage level for 30 minutes after coming out of current limit
(either battery or output current limit).
•
If there is no current limit, then it will stay on for 30 minutes and then switch to Float Mode.
The Auto-Equalize function is enabled via Setup –> Adjustment –> Equalize Enable -> Next.
7.5. Alarm Indications
The Ascend Charger user interface provides alarms and status for the user to determine the health of
the charger. When any alarm occurs, it is stored in data log, turns on the front panel Fault LED, and
95-100167, Rev A
on the mimic screen.
36
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