WAGO I/O SYSTEM 750 750-421 Bedienungsanleitung

Fieldbus Independent

I/O Modules

2 DI DC 24V 3.0ms, High-Side

Switching, Diagn.

750-421

Manual

Version 1.0.2

ii • General

WAGO-I/O-SYSTEM 750

I/O Modules

WAGO Kontakttechnik GmbH & Co. KG

Hansastraße 27

D-32423 Minden

Phone: +49 (0) 571/8 87 – 0

Fax: +49 (0) 571/8 87 – 1 69

E-Mail: [email protected]

Web: http://www.wago.com

Technical Support

Phone: +49 (0) 571/8 87 – 5 55

Fax: +49 (0) 571/8 87 – 85 55

E-Mail: [email protected]

Every conceivable measure has been taken to ensure the correctness and com-

pleteness of this documentation. However, as errors can never be fully ex-

cluded, we would appreciate any information or ideas at any time.

E-Mail: [email protected]

We wish to point out that the software and hardware terms as well as the

trademarks of companies used and/or mentioned in the present manual are

generally trademark or patent protected.

Content • iii

WAGO-I/O-SYSTEM 750

I/O Modules

CONTENT

1Important Comments ................................................................................. 4

1.1 Legal Principles........................................................................................4

1.1.1 Copyright............................................................................................. 4

1.1.2 Personnel 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

2I/O Modules ................................................................................................. 7

2.1 Digital Input Modules ..............................................................................7

2.1.1 750-421 [2 DI DC 24V 3.0ms, High-Side Switching, Diagn.]............7

2.1.1.1 View................................................................................................7

2.1.1.2 Description......................................................................................7

2.1.1.3 Display Elements ............................................................................8

2.1.1.4 Schematic Diagram.........................................................................9

2.1.1.5 Technical Data ................................................................................9

2.1.1.6 Process image................................................................................10

4 • Important Comments

Legal Principles

WAGO-I/O-SYSTEM 750

I/O Modules

1 Important Comments

To ensure fast installation and start-up of the units described in this manual,

we strongly recommend that the following information and explanations are

carefully read and abided by.

1.1 Legal Principles

1.1.1 Copyright

This manual is copyrighted, together with all figures and illustrations

contained therein. Any use of this manual which infringes the copyright

provisions stipulated herein, is not permitted. Reproduction, translation and

electronic and photo-technical archiving and amendments require the written

consent of WAGO Kontakttechnik GmbH & Co. KG. Non-observance will

entail the right of claims for damages.

WAGO Kontakttechnik GmbH & Co. KG reserves the right to perform

modifications allowed by technical progress. In case of grant of a patent or

legal protection of utility patents all rights are reserved by WAGO

Kontakttechnik GmbH & Co. KG. Products of other manufacturers 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 is exclusively geared to

specialists having qualifications in PLC programming, electrical specialists or

persons instructed by electrical specialists who are also familiar with the valid

standards. WAGO Kontakttechnik GmbH & Co. KG declines all liability

resulting from improper action and damage to WAGO products and third party

products due to non-observance of the information contained in this manual.

1.1.3 Intended Use

For each individual application, the components supplied are to work with a

dedicated hardware and software configuration. Modifications are only

permitted within the framework of the possibilities documented in the

manuals. All other changes to the hardware and/or software and the non-

conforming use of the components entail the exclusion of liability on part of

WAGO Kontakttechnik GmbH & Co. KG.

Please direct any requirements pertaining to a modified and/or new hardware

or software configuration directly to WAGO Kontakttechnik GmbH & Co.

KG.

Important Comments • 5

Symbols

WAGO-I/O-SYSTEM 750

I/O Modules

1.2 Symbols

Danger

Always abide by this information to protect persons from injury.

Warning

Always abide by this information to prevent damage to the device.

Attention

Marginal conditions must always be observed to ensure smooth operation.

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 use of the device and software optimization.

More information

References on additional literature, manuals, data sheets and INTERNET

pages

1.3 Number Notation

Number Code Example Note

Decimal 100 normal notation

Hexadecimal 0x64 C notation

Binary '100'

'0110.0100'

Within ',

Nibble separated with dots

6 • Important Comments

Safety Notes

WAGO-I/O-SYSTEM 750

I/O Modules

1.4 Safety Notes

Warning

Switch off the system prior to working on bus modules!

In the event of deformed contacts, the module in question is to be replaced, as

its functionality can no longer be ensured on a long-term basis.

The components are not resistant against materials having seeping and

insulating properties. Belonging to this group of materials is: e.g. aerosols,

silicones, triglycerides (found in some hand creams).

If it cannot be ruled out that these materials appear in the component

environment, then additional measures are to be taken:

- installation of the components into an appropriate enclosure

- handling of the components only with clean tools and materials.

Attention

Cleaning of soiled contacts may only be done with ethyl alcohol and leather

cloths. Thereby, the ESD 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 assembled in housings, cabinets or in electrical operation

rooms. Access must only be given via a key or tool to authorized qualified

personnel.

The relevant valid and applicable standards and guidelines concerning the

installation of switch boxes are to be observed.

ESD (Electrostatic Discharge)

The modules are equipped with electronic components that may be destroyed

by electrostatic discharge. When handling the modules, ensure that the

environment (persons, workplace and packing) is well grounded. Avoid

touching conductive components, e.g. gold contacts.

1.5 Scope

This manual describes the Digital Input Module 750-421

2 DI DC 24V 3.0ms, High-Side Switching, Diagn. of the modular WAGO-

I/O-SYSTEM 750.

Handling, assembly and start-up are described in the manual of the Fieldbus

Coupler. Therefore this documentation is valid only in the connection with the

appropriate manual.

750-421 [2 DI DC 24V 3.0ms, High-Side Switching, Diagn.] • 7

View

WAGO-I/O-SYSTEM 750

I/O Modules

2 I/O Modules

2.1 Digital Input Modules

2.1.1 750-421 [2 DI DC 24V 3.0ms, High-Side Switching, Diagn.]

2-Channel Digital Input Module DC 24V 3.0ms,

2- or 3-conductor connection; high-side switching, Diagn.

2.1.1.1 View

01 03

13 14

02 04

DI 2

24V

DI 1

U1 V

750-421

Power jumper contacts

Data contacts

Status DI 2

Status DI 1

Error DI 2

Error DI 1

Fig. 2.1.1-1: 2-Channel Digital Input Module 750-421 g042100e

2.1.1.2 Description

The digital input module 750-421 receives control signals from digital field

devices (sensors, switches, etc.) and supplies a short-circuit proof voltage to

the sensors.

The module is a 2- to 3-conductor device and has two input channels. Two

sensors may be directly connected to the module.

Two 3-conductor sensors may be directly connected to UV1, 0 V and signal

input DI 1 or UV2, 0 V and signal input DI 2.

Each sensor can be supplied separately over the outputs UV1 and UV2.

Each input module has an RC noise rejection filter with a time constant of

3.0 ms.

The status of the input channels is indicated via status LEDs. In addition, a red

error-LED will show if there are any short circuit to ground in either channel.

In case of a short circuit, one error bit (bit 2 or bit 3) is assigned to every

channel in the input data process image. By means of this bit the supervisory

control can detect the error.

8 • 750-421 [2 DI DC 24V 3.0ms, High-Side Switching, Diagn.]

Display Elements

WAGO-I/O-SYSTEM 750

I/O Modules

After the error has been eliminated, the module will acknowledge

automatically.

With a delay of 100 ms (pulse extension), the error bit in the input process

image is reset and the error LED goes out after the acknowledgement.

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.

The field side supply voltage of 24V for the input module is derived from

adjacent I/O modules or from a supply module.The supply voltage for the

field side is made automatically through the individual I/O modules by means

of power jumper contacts.

Warning

The maximum current of the internal power jumper contacts is 10 A. When

configuring the system it is important not to exceed the maximum/sum

current. However, if such a case should occur, another supply module must

be added.

The digital input module 750-421 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)A

green

Status

DI 1 on Input DI 1: Signal voltage (1)

off Normal operationB

red

1 Error

DI 1 on Short circuit (against ground)

off Input DI 2: Signal voltage (0)C

green

Status

DI 2 on Input DI 2: Signal voltage (1)

off Normal operation

13 14

Fig. 2.1.1-2: Display

elements g041802x

red

2 Error

DI 2 on Short circuit (against ground)

750-421 [2 DI DC 24V 3.0ms, High-Side Switching, Diagn.] • 9

Schematic Diagram

WAGO-I/O-SYSTEM 750

I/O Modules

2.1.1.4 Schematic Diagram

Error

Status

750-421

DI 1 DI 2

24V

VU2

24V

10nF

270pF

10nF 10nF

Fig. 2.1.1-3: 2-Channel Digital Input Module 750-421 g042101e

2.1.1.5 Technical Data

Module-specific data

Number of inputs 2

Number of outputs 2 for transmitter supply

Current consumption (internal) < 12mA

Nominal voltage DC 24V (-25 % ... +30 %)

Signal voltage (0) DC –3V ... +5V

Signal voltage (1) DC 15V ... 30V

Input filter 3.0ms

Current supply typ. 4.3mA

Sensor supply Uv1,2 DC 24V

Nominal output current 0.5A

Short circuit current max. 1.5A, undulating because of thermal

overload protection

Isolation 500V (field/supply)

Internal bit width 4 Bit In

Dimensions (mm) W x H x L 12 x 64* x 100

* from upper edge of DIN 35 rail

Weight ca. 50 g

10 •750-421 [2 DI DC 24V 3.0ms, High-Side Switching, Diagn.]

Process image

WAGO-I/O-SYSTEM 750

I/O Modules

Standards and Regulations (cf. Chapter 2.2 of the Coupler / Controller Manual)

EMC-Immunity to interference (CE) acc. to EN 50082-2 (96)

EMV-Emission of interference (CE) acc. to EN 50081-1 (93)

EMV-Immunity to interference

(Ship building)

acc. to Germanischer Lloyd (01)

EMV-Emission of interference

(Ship building)

acc. to Germanischer Lloyd (01)

Approvals (cf. Chapter 2.2 of the Coupler / Controller Manual)

CULUS (UL508)

ABS (American Bureau of Shipping)

BV (Bureau Veritas) (applied for)

DNV (Det Norske Veritas) Cl. B

GL (Germanischer Lloyd) Cat. A, B, C, D

KR (Korean Register of Shipping)

LR (Lloyd's Register) (applied for) Env. 1, 2, 3, 4

NKK (Nippon Kaiji Kyokai)

Conformity Marking

More Information

Detailed references to the approvals are listed in the document "Overview

Approvals WAGO-I/O-SYSTEM 750", which you can find on the CD ROM

ELECTRONICC Tools and Docs (Item-No.: 0888-0412)

or in the internet under:

www.wago.com !Documentation !WAGO-I/O-SYSTEM 750 !

System Description

2.1.1.6 Process image

Input process data of the module 750-421

Input bit B3 B2 B1 B0

Meaning S21)

short circuit

channel 2

S11)

short circuit

channel 1

Signal status

DI 2 – channel 2

Signal status

DI 1 – channel 1

1) S1, S2: Diagnostic bit is set high at short circuit, with 100 ms pulse extension

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