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Fire & Security Products
Siemens Building Technologies Group 04.2002
3 Battery charging module E3C021
F1
F2
F3
F11
F13
F12
X2
S2S3
K3
K4
H1
H2
S10
1
20
E3C021
1
20
R67
R66
X1
F1...F3 Output fuses 2A slow-blow
F11...F13 Battery fuses 6.3A slow-blow, with high breaking capacity
H1, H2 LED display block „Power supply state” (page 6)
K3, K4 Monitoring signals connector (K3 = to control unit, K4 = from external)
R66, R67 Resistors „Operating mode”
S2 Switch „Battery type”
S3 Switch „Monitoring signals”
S10 Push button „Start-up without mains voltage”
X1 Jumper, for function see connection diagram of E3C021, page 8
X2 Jumper „Door contact simulation” (not inserted ex works)
Key data E3C021
Input voltage 29.6VDC ±2%, from B2F020 module
Charging section
Battery 2 x 12V / 6...40Ah, lead battery
Charging characteristics Can be adjusted to different makes of battery using pro-
gramming switch ”S2”
Charging current up to 1.7A (current limitation)
Temperature compensation of
battery charging voltage
with external temperature sensor
Battery monitoring battery presence test every 55sec
Symmetry monitoring asymmetry >1V = trouble
Battery test automatic battery load test
(3A for 10sec, 1 times every 23h)
EMI-protection battery line no
Supply voltage outputs
Monitored load 1, load 2, load 3: each 24VDC <2A
Not monitored 24VDC to the control unit
Quiescent current 30mA when on emergency power operation
50mA when on mains operation without battery charge
Print dimensions 100 x 200 x 30mm
Wire range max. 2.5mm
2
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