Siemens ECOFAST, Manual

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Wiring and interfaces
ECOFAST Motor Starters
GWA 4NEB 950 0562-12
3-13
Deutsc
h
Eng
lish
3.6 Digital inputs
Definition
The motor starter has 2 digital inputs, which you can connect directly to sen-
sors (PNP) using 2-wire and 3-wire technology.
M12, 5-pole plug connectors are used for this.
M12, 5-pole jacks are fitted on the motor starter.
Pin assignment
The pin assignment is arranged in accordance with the standardized Y2 assi-
gnment and the examples for 2- and 3-wire circuits:
Fig. 3-8: Pin assignment with circuit examples
Note
The digital inputs are short-circuit-proof. The current is limited to a
maximum of 200 mA. In the event of a short-circuit or overloading of the
sensor supply, the switching element (motor) and brake output are deactiva-
ted and a general fault is issued. You must acknowledge this fault with trip
reset.
Important!
Do not use an external power supply because otherwise there will be a risk
of short-circuits.
Sockets, M12, 5-pole
+
–
Out
Example:
2-wire circuit
Example:
3-wire circuit
1
4 3
2
5
+ 24 V
IN.1
IN.2
0 V
1
4 3
2
IN.1/2
+ 24 V
---
0 V
1
4 3
2
IN.2
+ 24 V
IN
1
4 3
2
0 V
+ 24 V
IN
1
4 3
2
IN.2