E3C011 Battery charging module
27
Siemens Building Technologies 007831_a_en_--.doc
Fire & Security Products 03.2004
7.8 LED indicator block ”Battery-charger”
yellow "Power supply fault"
green "Mains operation"
yellow "Battery fault"
yellow unused
H501
H502
Indicators vary in meaning according to application:
a) Battery operation and
symmetry monitoring
LED ”Power supply fault”
– Input voltage > 31.0V → power unit malfunction
– Battery voltage > 29.5V or < 25V → charger malfunction
– Charger malfunction
– Charger shut down (via software function)
– Temperature sensor open line / short circuit
– Temperature sensor measures > 55°C
EEPROM check sum error
LED ”Power on”
Input voltage > 28.5V
LED ”Battery fault”
– Battery voltage <23V
– Asymmetry >1.0V or fuse F503 blown
– Possibly cell short circuit
– Open line to battery or fuse F501 / F502 blown
– Automatic test to indicate battery presence negative
– Automatic battery load test negative
b) Battery operation without
symmetry monitoring
LED ”Power supply fault”
– Input voltage > 31.0V → power unit malfunction
– Battery voltage > 29.5V or < 25V → charger malfunction
– Charger malfunction
– Charger shut down (via software function)
– Temperature sensor open line / short circuit
– Temperature sensor measures > 55°C
– EEPROM check sum error
LED ”Power on”
– Input voltage > 28.5V
LED ”Battery fault”
– Battery voltage <23V
– Open line to battery or fuse F501 / F502 blown
– Automatic test to indicate battery presence negative
– Automatic battery load test negative
c) Operation with external volt-
age (instead of battery)
LED ”Power supply fault”
– Input voltage > 31.0V → power unit malfunction
– EEPROM check sum error
LED ”Power on”
– Input voltage > 28.5V
LED ”Battery fault”
– Battery voltage or external voltage < 23V or > 31.0V
– Automatic presence test (external voltage) negative or fuse F501 / F502 blown
d) Operation without battery or
external voltage
LED ”Power supply fault”
– Input voltage > 31.0V → power unit malfunction
– EEPROM check sum error
LED ”Power on”
– Input voltage > 28.5V
LED ”Battery fault”
– no function