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8  • 

I/O Modules 
750-428 [4 DI AC/DC 42 V 20 ms] 

  

WAGO-I/O-SYSTEM 

750 

  

I/O 

Modules 

An optocoupler is used for electrical isolation between the bus and the field 
side. 

Any configuration of the input modules is possible when designing the 
fieldbus node. Grouping of module types is not necessary. 

 

Attention 

This module has no power contacts. For field supply to downstream I/O 
modules, a supply module will be needed.  

The digital input module 750-428 can be used with all couplers/controllers of 
the WAGO-I/O-SYSTEM 750. 

2.1.1.3 Display 

Elements 

LED 

Channel  Designation  State  Function

 

off 

Input DI 1: Signal voltage (0) 


green 

1 Status 

DI 1 

on 

Input DI 1: Signal voltage (1) 

off 

Input DI 2: Signal voltage (0) 


green 

2 Status 

DI 2 

on 

Input DI 2: Signal voltage (1) 

off 

Input DI 3: Signal voltage (0) 


green 

3 Status 

DI 3 

on 

Input DI 3: Signal voltage (1) 

off 

Input DI 4: Signal voltage (0) 

13 14

C

D

B

A

C
D

A
B

 

Fig. 2.1.1-2: Display 
Elements 

g041402x

 


green 

Status 

DI 4 

on 

Input DI 4: Signal voltage (1) 

 

2.1.1.4 Schematic 

Diagram 

DI 1

DI 2

DI 1

DI 3

DI

270pF

DI

DI 3

DI 2

DI 4

DI 4

DI

270pF

1

2

3

4

5

6

7

8

750-428

 

Fig. 2.1.1-3: 4- Channel Digital Input Module 750-428 

g042801e 

Summary of Contents for 750-428

Page 1: ...Fieldbus Independent I O Modules 4 DI AC DC 42 V 20 ms 750 428 Manual Version 1 0 3...

Page 2: ...571 8 87 5 55 Fax 49 0 571 8 87 85 55 E Mail support wago com Every conceivable measure has been taken to ensure the correctness and com pleteness of this documentation However as errors can never be...

Page 3: ...el Qualification 4 1 1 3 Intended Use 4 1 2 Symbols 5 1 3 Number Notation 5 1 4 Safety Notes 6 1 5 Scope 6 2 I O Modules 7 2 1 Digital Input Modules 7 2 1 1 750 428 4 DI AC DC 42 V 20 ms 7 2 1 1 1 Vie...

Page 4: ...ufacturers are always named without referring to patent rights The existence of such rights can therefore not be ruled out 1 1 2 Personnel Qualification The use of the product detailed in this manual...

Page 5: ...ation ESD Electrostatic Discharge Warning of damage to the components by electrostatic discharge Observe the precautionary measure for handling components at risk Note Routines or advice for efficient...

Page 6: ...information is to be regarded Do not use any contact spray The spray may impair the functioning of the contact area The WAGO I O SYSTEM 750 and its components are an open system It must only be assem...

Page 7: ...750 428 reads AC DC 42 V values from digital field devices sensors switches etc using the differential inputs and transmits depending on these values binary control signals to the higher ranking cont...

Page 8: ...rollers of the WAGO I O SYSTEM 750 2 1 1 3 Display Elements LED Channel Designation State Function off Input DI 1 Signal voltage 0 A green 1 Status DI 1 on Input DI 1 Signal voltage 1 off Input DI 2 S...

Page 9: ...gulations cf Chapter 2 2 of the Coupler Controller Manual EMC Immunity to interference CE acc to EN 50082 2 96 EMC Emission of interference CE acc to EN 50081 1 93 Approvals cf Chapter 2 2 of the Coup...

Page 10: ...WAGO Kontakttechnik GmbH Co KG Postfach 2880 D 32385 Minden Hansastra e 27 D 32423 Minden Phone 05 71 8 87 0 Fax 05 71 8 87 1 69 E Mail info wago com Internet http www wago com...

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