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4.3.2
Connection
Connection techniques
Outputs
1070 072 302-101 (01.06) GB
X1 to X8
Pin
1 to 4
1
USn
2
0 V
3
PE
4
The following connection techniques are possible:
D 2-wire technology
sensors with 24 V and signal; actuators with signal and 0 V
D 3-wire technology
sensors with 24 V, signal and 0 V; actuators with signal, 0 V and PE
D 4-wire technology
sensors with 24 V, signal, 0 V and PE
(complete wiring without intermediate terminals permitted)
D Outputs are protected against short-term polarity inversion
D Nominal current per output: maximum 0.5 A at 100 % simultaneity
D Maximum 4 outputs on one terminal can be grouped into a circuit to
implement 2-A outputs. These must be activated synchronously in the
PLC program
D Overload protection for each output
D Diagnosis in the case of overload (one LED per byte, messages to the
master as collective diagnosis per byte)
1
2
3
4
Allocation
Digital input/output of a terminal block
Sensor supply, byte-wise (n = 1 to 4),
short–circuit monitored
0 V for return current or sensors and/or load
Protective earth
4–5
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