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010-353-B9-001 Rev. A1 (09/2015)
3.0
Operation, continued
3.4 Operational modes
3.4.1 Normal mode
This mode is defined as a state where the load is being supplied from AC input, and the battery is floating,
charging or in the process of being tested.
When the unit is initially powered up, or whenever the input supply has been restored after an outage, the unit
operates in charge mode. Once the battery voltage has reached the full charge voltage, the unit switches to
float mode. If the input voltage is less than the minimum AC input, the system switches to operating in back-
up mode.
After approximately 180 days of operation, the battery is automatically tested to determine whether it has
adequate capacity. It is tested when the following conditions are met:
The battery is operating in float mode for 24 hours; and,
The battery is fully charged in the temperature between 5°C to 35°C / 40°F to 95°F for 24 hours
.
The Replace battery alarm is not active
(triggered if the power module charger is in accept mode for 1 hour
with the battery below 10.5V).
The Power module over voltage is not active
(where the power module output is higher than the target by
500mV for 75 seconds).
If the above conditions are not met when the test becomes due, the test is postponed until those conditions
are met. If the AC input is lost, or the unit is overloaded during the battery test, it will be aborted and post-
poned until conditions are valid.
Once a battery test has been successfully executed, another test will be automatically scheduled to occur in
180 days, without regard to the test results.
3.4.2 Back-Up mode
The load is being supplied from the battery while the battery voltage is greater than 10.5Vdc. When the bat-
tery falls below this value, it is disconnected.
3.4.3 Charging mode
This maintains the battery at 100% capacity. After an AC outage, when AC is present, the charger continues
charging until one of the following occurs:
•
Battery has reached 100% capacity.
• Charging is reduced to float charge level. Normal BULK charge current is approximately 800mA.
•
When in ACCEPT MODE the current falls below 150mA, the mode changes to FLOAT. In the event
the current does not reduce, the software triggers the mode change after 48 hours in ACCEPT
•
Another power failure occurs requiring battery support.
No special action is required to restore normal operation once primary power is restored.
3.4.4 Mute mode
Pressing the Silence Alarm button puts the unit into Mute mode. In this mode the green Mute LED will
illuminate and remain illuminated until Silence Alarm is pressed again. Audible Alarm indicators will be
silenced, but all other alarm functionality remains the same, see Table 3-1.
Summary of Contents for FP1208-F-5A
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