Battery load test
Purpose and principle
In case of mains interruption the power supply of the fire detection system relies on an internal battery pack. The capacity of the battery pack is sufficent to keep the system for a couple of hours operating (+ page 32, Faults). As the lifetime of batteries is limited, a battery load test has to be performed periodically to ensure a good condition of the battery pack: For 10 seconds the battery is highly loaded and the battery voltage is monitored. If the voltage drop is beyond a cer- tain value, the battery pack has to be replaced.
Frequency
The batterie test is automatically performed by the system every 24 hours. If the battery is dama- ged, or provides only an insufficent capacity, a fault messages is displayed.
Once a year the battery test has to be performed manually.
Battery load test procedure
1. Press St . |
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Ü Display shows | * |
2.Select option 4. ä 2. ä 2. ä 2.
ÜTo initiate the battery load test.
Ü Display shows | * |
ÜIf the battery test is completed, the sy- stem shows the result.
Ü Display shows | * |
for a few seconds |
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SELECT: 1. ENabling (main menu) 2. DISabling
3.INFO polling
4.other functions
TESTING battery:
> remaining time for load test
hm: stop test | Stop: end operating |
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RESULT battery test: |
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> battery OK. |
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timeout /hm: menu | Stop: end operating |
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If the battery load test yields insufficent battery capacity, call the SIEMENS service organization to replace the battery.
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Fire & Security Products | |
Siemens Building Technologies Group | 02.2004 |
