BECKHOFF EL1904 User Manual

Page 27

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Operation

EL1904

25

EL1904 pin assignment

Terminal
point

Input

Signal

1 1

Input

1+

2 Input

1-

3 3

Input

3+

4 Input

3-

5 2

Input

2+

6 Input

2-

7 4

Input

4+

8 Input

4-

Note

Configurable inputs

The inputs 1 to 4 can be occupied as you want with normally closed contacts or
normally open contacts. The corresponding analysis is carried out in the safety PLC.

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