Alpha Technologies FlexNet FMPS - Manual (Page 31)

Argus Technologies Ltd. 010-592-C0 Rev G WC
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6.10 Battery Self-test
The FMPS performs an automatic Battery Self-test on a cycle of one string every 22.5 days.
The battery self-test operates as follows:
1. The microprocessor verifies that AC power is on.
2. If AC is present the microprocessor initiates the self-test.
3. The load is supported by Battery String A or B, but not both. Should AC power fail during the test, the test is
terminated.
4. The microprocessor monitors energy taken from the battery string and compares it with the energy required to
recharge the batteries. It determines if the battery string capacity is greater than 70 percent of the 7.2AH
rating. If capacity fails, a replace battery alarm is generated.
NOTE: The battery test begins with String A, and alternates between battery strings each time a test starts.
Figure 13–Battery self-test
NOTE: To trigger a manual battery test, toggle the Silence Alarm switch On, Off, On.