WAGO 750-477 User manual

Fieldbus Independent

I/O Modules

2 AI AC/DC 0-10 V, Differential

Inputs

750-477

Manual

Version 1.0.3

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 Analog Input Modules.............................................................................. 7

2.1.1 750-477 [2 AI AC/DC 0-10 V, Differential Inputs]............................ 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 .............................................................................. 10

2.1.1.6 Process Image ...............................................................................11

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 Analog Input Module 750-477

2 AI AC/DC 0-10 V, Differential Inputs 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.

750-477 [2 AI AC/DC 0-10 V, Differential Inputs] • 7

View

WAGO-I/O-SYSTEM 750

I/O Modules

2 I/O Modules

2.1 Analog Input Modules

2.1.1 750-477 [2 AI AC/DC 0-10 V, Differential Inputs]

2-Channel Analog Input Module (AC/DC 0-10 V, differential inputs)

2.1.1.1 View

+E1 +E2

13 14

750-477

-E1 -E2

+AI 2

Power jumper contacts

Data contacts

Function AI 2

Function AI 1

+AI 1

Error AI 2

Error AI 1

Shield

(screen)

Shield

(screen)

-AI 1 -AI 2

Fig. 2.1.1-1: View g047700e

2.1.1.2 Description

The analog input module receives AC and DC voltages of values 0-10 Vrms.

The module has two differential input channels and can receive differential

signals via the connections +AI 1 and -AI 1 or +AI 2 and -AI 2.

The Shield (screen) is directly connected to the DIN rail. A capacitive

connection is made automatically when snapped onto the DIN rail.

The input signal is measured for each channel galvanically separated to the

system level as rms value of the voltage and displayed with a resolution of

1 mV.

The maximum value of the voltage must not exceed 20 V.

The operational readiness and trouble-free internal data bus communication of

the channels are indicated via a green Function LED. Overrange of the

measuring range or input open is indicated via a red error LED.

Any configuration of the input modules is possible when designing the

fieldbus node. Grouping of module types is not necessary.

8 • 750-477 [2 AI AC/DC 0-10 V, Differential Inputs]

Display Elements

WAGO-I/O-SYSTEM 750

I/O Modules

The voltage supply is done via system voltage.

The field side supply voltage of 24 V and 0 V for the input module is derived

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

is passed on separately galvanically to following modules without own use.

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 analog input module 750-477 can be used with all couplers/controllers of

the WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -323, -

324 and -327).

2.1.1.3 Display Elements

LED Channel Meaning State Function

off

No operational readiness or the

internal data bus communication is

interrupted

green

Function

AI 1

Operational readiness and trouble-

free internal data bus

communication

off Normal operation

red

Error

AI 1 on Overrange of the admissible

measuring range

off

No operational readiness or the

internal data bus communication is

interrupted

green

Function

AI 2

Operational readiness and trouble-

free internal data bus

communication

off Normal operation

13 14

Fig. 2.1.1-2: Display

Elements g041802x

red

Error

AI 2 on Overrange of the admissible

measuring range

750-477 [2 AI AC/DC 0-10 V, Differential Inputs] • 9

Schematic Diagram

WAGO-I/O-SYSTEM 750

I/O Modules

2.1.1.4 Schematic Diagram

750-477

Shield

(screen)

Logic

Function

Error

Shield

(screen)

+Al

10nF

270

10nF

-Al

120 k

+AI 1 +AI 2

24V

-AI 2

-AI 1

Fig. 2.1.1-3: Schematic diagram g047701e

10 • 750-477 [2 AI AC/DC 0-10 V, Differential Inputs]

Technical Data

WAGO-I/O-SYSTEM 750

I/O Modules

2.1.1.5 Technical Data

Module Specific Data

Number of inputs 2

Voltage supply via system voltage DC /DC

Current consumption typ. (internal) 80 mA

Signal voltage 0 V... 10 V r.m.s. (peak value 20 V)

Internal resistance 120 kΩ

Resolution 16 bits internal (1 LSB = 1mV)

Conversion time typ. 200 ms

Measuring error 25°C <±0.1 % of full scale value

Temperature coefficient <±110 ppm /K of full scale value

Measuring error over whole temp.

range

<±0.6 % of full scale value

Voltage resistance DC 500V (channel/channel or channel/system)

Voltage via power jumper contacts DC 24 V

Bit width 2 x 16 bits data

2 x 8 bits control/status (option)

Process data 0,0 V corresponds to 0x0000

20 V DC corresponds to 0x4E20

Dimensions W x H* x L

* from upper edge of 35 DIN rail

12 mm x 64 mm x 100 mm

Weight ca. 80 g

Standards and Regulations (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 Coupler/Controller Manual)

CULUS (UL508)

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 !

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