EnerSys Alpha FXM HP 1100, Техническое руководство

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• Automatic Testing — Battery Test can be scheduled to start automatically and periodically.
• Remote Triggered Battery Testing — Battery Test can be triggered to start by the state of a user
input.
Using the Battery Test
If the test is started when the battery is fully charged, the results of the battery capacity estimate will be
more accurate. Use charge current control to limit the battery recharge current to the battery manufac -
turer’s specified maximum value.
During a test, the
Estimated State of Charge and Estimated Battery Runtime hours can be viewed
via the System > Status menu or the System > System Functions > Battery Runtime and Health
Estimation menu.
Battery Test Initiation
When the test begins, an entry is made in the event log. If the Battery Test Alarm has been enabled,
it would be activated to provide a warning to indicate that a battery test is in progress. The FXM mode
is changed to Inverter mode to allow the battery to discharge by providing power to the AC load. Battery
Test will run for the period set as timeout or until the battery test termination voltage is reached.
Activity During Battery Test
Temperature compensation features are suspended during a battery test. When the battery is
discharging, the battery test alarm is active. Battery state of health estimation begins at 3% of DOD, but
is not displayed unless DOD > 20%; the point at which reasonable accuracy can be assured.
Conditions to Watch for During Battery Test
If the voltage drops below 46V (23V for 24 V battery system) before or when 3% depth of discharge is
reached, the test is aborted and the battery health is set to 0% (resulting in a Battery Health Low alarm).
This provides an indication that the battery is very weak. Battery state of health must be manually reset
to 100% before the next battery test is started, so that the battery monitor can properly estimate the
battery health.
Canceling Battery Test
Battery Test mode can be canceled by stopping the test manually. To stop the battery test manually go
to System > FXM System > System Functions > Battery Test and press the Stop Manual Battery
Test button.
Battery Test Completion
Once the battery begins to charge, the recharge cycle begins. Live battery recharge information is avail -
able via the System > FXM System > System Functions > Battery Runtime and Health Estimation
menu. The test is considered complete once the battery begins to charge. This is due to either, the test
ending from timeout, the system reaching the termination voltage or from an abort condition.
9.2.5 Battery Runtime and Health Estimation
If Battery Estimation is enabled, the controller calculates an Estimated State of Charge (SOC), and
an Estimated Battery Runtime remaining (RTR) at all times. It is not always practical to estimate these