Siemens X-400 Manuel d'utilisateur télécharger pdf (Page 92)

Installation and Commissioning

Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches

92 C79000-G8976-C186-03

6.6.3 Digital Input Connectors (X1)

Polarity Reversal Protection X1, X2

The two 5-pin male connectors (X1, X2) of the digital inputs 1 through 8 have no

polarity reversal protection. If the connectors are accidentally swapped over, this

does not cause damage or destroy circuits. In display modes A and C or B and D,

incorrect inputs are displayed during the time the connectors are swapped over.

Digital inputs 1 through 4 are connected using a 5-pin connector at the front termi-

nal block on the DI module.

X 2

X 1

I N 2

M 4

I N 3I N 4

I N 1

Figure 6-11 Pin assignment of connector X1 (Inputs 1 through 4)

Conn. 1 IN1 Digital input 1

IN2 Digital input 2

M4 Ground

IN3 Digital input 3

IN4 Digital input 4

Warning

The input voltage must not exceed + 30 V and must not fall below – 30 V, other-

wise the DI module will be destroyed.

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Siemens X-400 Manuel d'utilisateur Page 92