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The 12V DC power supply and 12V DC power supply low-tier do not include a battery option.
Charging the Battery
The charging voltage of the Lead-Acid battery is controlled by the charger as a function of the
battery temperature. The charging profile is set to comply with the temperature-compensated
float-voltage of the ACE3600 battery.
Diagnostics
A battery test can be performed on the Lead-Acid battery, either from the ACE3600 STS
Hardware Test utility or from the user application program. The battery test includes disabling
the battery charger, discharging the battery and measuring the capacitance. For more
information, see the Hardware Test section or the Creating a User Application section of the
ACE3600 STS User Guide.
It is recommended to run a battery capacity test once per month (for more exact
results perform at +10˚ to +30˚C), and a charge level test once per day. The capacity
test lowers the main DC to a safety net level (~12V) so that the battery will be
activated. The battery is heavily loaded for ~45 seconds, the power supply LED
blinks green, and the battery capacity is measured. If the capacity is below the
manufacturer recommended level, the battery should be replaced with a new one.
(See Replacing the Backup Battery below.) Note that the capacity test is only
available for the battery types supplied by Motorola.
The results of the battery capacity test can be:
•
Battery OK
•
Battery needs to be replaced
•
Test blocked - bad environment
The battery capacity test will be blocked under the following conditions:
1. If the battery is discharging (battery is main power source of RTU),
2. If the battery or thermistor is disconnected,
3. If the battery temperature is outside the specified range,
4. If the battery type is not properly configured,
5. If the battery is not fully loaded.
For test accuracy, all heavy current consumers should be turned off. In the Hardware Test, the
user should freeze the power supply before performing the battery capacity test.
Power Supply Module and Backup Battery
3-10
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