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Fire & Security Products
Siemens Building Technologies Group
04.2002
3.4
Connections of E3C021
brown
blue
E3C021
1
2
3
4
5
6
7
8
9
10
11
12
+
–
+
–
+
–
+
+
–
+
13
14
15
16
17
18
19
20
Battery 24V max. 40Ah,
symmetry monitored
From converter B2F020
System voltage
Temperature sensor for battery
12V
12V
Battery (internal) or 24V external voltage
PTC
white
red
green
blue
brown
Terminal block
X10
1
2
3
4
5
6
+
–
–
–
–
Monitoring inputs
Connector K3
Emerg. power
24V
Power supply
Coding
Battery
Door switch
Monitoring outputs
(optocouplers)
Connector K4
–
–
–
–
+
–
+
Common for K3
Door switch
X2
S3#1
F1: 2A
F2: A2
F3: A2
–
+
24V
DC
to control unit,
cable with AMP T-connector
24V
DC
load 1: <2A
24V
DC
load 2: <2A
24V
DC
load 3: <2A
F12: 6,3A
F13: 6,3A
F11: 6,3A
X1
Door contact or jumper X2 (at first E3C021 only)
Common for monitoring signals or S3#1 = on
1
2
3
4
5
6
–
–
–
–
–
Emerg. power
Power supply
24V
Battery
Door switch
Parallel connection: next E3C021
Monitoring signals to control unit
brown
yellow
white
green
Monitoring signals from next E3C021, K3 (Z3B220 cable)
or S3#2 = on at last E3C021
– PTC is always required including for operation ”with external voltage” or ”without battery”.
– PTC is polarity sensitive, observe the correct colour of connection wires!
For mode settings and wiring refer to
chapter 4 „Application examples”.
Central ground
D
POSITIVE to earth = pin 7
D
NEGATIVE to earth = pin 9:
Do not use for Cerberus equipment.
D
Earth-free
When using filters n nor – may
be connected to earth.
