WAGO WAGO-I/O-SYSTEM 750 750-481/003-000 User manual

Brand: WAGO

Model: WAGO-I/O-SYSTEM 750 750-481/003-000

Type: User manual

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Manual

WAGO-I/O-SYSTEM 750

2AI RTD Ex i

750-481/003-000

2-Channel Analog Input Module for Resistance

Sensors, Ex i

1.1.0

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2 WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

Manual

1.1.0

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 accuracy and

completeness of this documentation. However, as errors can never be fully

excluded, we always appreciate any information or suggestions for improving the

documentation.

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 protected by trademark or patent.

=== Ende der Liste für Textmarke Einband_vorne ===

WAGO-I/O-SYSTEM 750 Table of Contents 3

750-481/003-000 2AI RTD Ex i

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Table of Contents

1 Notes about this Documentation................................................................. 5

1.1 Validity of this Documentation................................................................. 5

1.2 Copyright................................................................................................... 5

1.3 Symbols..................................................................................................... 6

1.4 Number Notation....................................................................................... 8

1.5 Font Conventions ...................................................................................... 8

2 Important Notes ........................................................................................... 9

2.1 Legal Bases ............................................................................................... 9

2.1.1 Subject to Changes ............................................................................... 9

2.1.2 Personnel Qualifications....................................................................... 9

2.1.3 Use of the 750 Series in Compliance with Underlying Provisions ...... 9

2.1.4 Technical Condition of Specified Devices......................................... 10

2.2 Safety Advice (Precautions).................................................................... 11

3 Device Description ..................................................................................... 13

3.1 View ........................................................................................................ 16

3.2 Connectors............................................................................................... 17

3.2.1 Data Contacts/Internal Bus................................................................. 17

3.2.2 Power Contacts/Field Supply ............................................................. 18

3.2.3 CAGE CLAMP

Connections ........................................................... 19

3.3 Display Elements .................................................................................... 20

3.4 Operating Elements................................................................................. 20

3.5 Schematic Diagram ................................................................................. 21

3.6 Technical Data ........................................................................................ 22

3.6.1 Device data ......................................................................................... 22

3.6.2 Supply................................................................................................. 22

3.6.3 Kommunikation.................................................................................. 22

3.6.4 Inputs .................................................................................................. 23

3.6.5 Explosion Protection .......................................................................... 24

3.7 Approvals ................................................................................................ 25

3.8 Standards and Guidelines........................................................................ 25

4 Assembly ..................................................................................................... 26

4.1 Assembly Sequence ................................................................................ 26

4.2 Inserting and Removing Devices ............................................................ 27

4.2.1 Inserting I/O Module .......................................................................... 27

4.2.2 Removing the I/O Module.................................................................. 28

5 Connect Devices ......................................................................................... 29

5.1 Connecting a conductor to the CAGE CLAMP

.................................... 29

5.2 Connection Examples.............................................................................. 30

5.2.1 2 x RTD, 2-Conductors ...................................................................... 30

5.2.2 2 x RTD, 3-Conductors ...................................................................... 30

5.2.3 2 x Resistance..................................................................................... 31

5.2.4 2 x Potentiometer................................................................................ 31

6 Process Image............................................................................................. 32

6.1 Configuration for Pt Resistance Sensors................................................. 32

Manual

1.1.0

4 Table of Contents WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

Manual

1.1.0

6.2 Configuration for Ni Resistance Sensors ................................................ 34

6.3 Configuration for Resistance Measuring ................................................ 36

6.4 Configuration for Potentiometer Measuring ........................................... 37

7 Use in Hazardous Environments .............................................................. 38

7.1 Identification ........................................................................................... 39

7.1.1 For Europe according to CENELEC and IEC.................................... 39

7.1.2 For America according to NEC 500................................................... 42

7.2 Installation Regulations........................................................................... 43

7.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc.

DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)................... 44

7.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX

554086 X)........................................................................................... 45

7.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)46

7.2.4 ANSI/ISA 12.12.01 ............................................................................ 47

List of Figures ...................................................................................................... 48

List of Tables........................................................................................................ 49

=== Ende der Liste für Textmarke Verzeichnis_ vorne ===

WAGO-I/O-SYSTEM 750 Notes about this Documentation 5

750-481/003-000 2AI RTD Ex i

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1 Notes about this Documentation

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Keep this documentation!

The operating instructions are part of the product and shall be kept for the entire

lifetime of the device. They shall be transferred to each subsequent owner or user

of the device. Care must also be taken to ensure that any supplement to these

instructions are included, if applicable.

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1.1 Validity of this Documentation

This documentation is only applicable to the I/O module 750-481/003-000

(2AI RTD Ex i) of the WAGO-I/O-SYSTEM 750 series.

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The I/O module 750-481/003-000 shall only be installed and operated according

to the instructions in this manual and in the manual for the used fieldbus

coupler/controller.

Consider power layout of the WAGO-I/O-SYSTEM 750!

In addition to these operating instructions, you will also need the manual for the

used fieldbus coupler/controller, which can be downloaded at www.wago.com.

There, you can obtain important information including information on electrical

isolation, system power and supply specifications.

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1.2 Copyright

This Manual, including all figures and illustrations, is copyright-protected. Any

further use of this Manual by third parties that violate pertinent copyright

provisions is prohibited. Reproduction, translation, electronic and phototechnical

filing/archiving (e.g., photocopying) as well as any amendments require the

written consent of WAGO Kontakttechnik GmbH & Co. KG, Minden, Germany.

Non-observance will involve the right to assert damage claims.

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Manual

1.1.0

6 Notes about this Documentation WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

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1.3 Symbols

Personal Injury!

Indicates a high-risk, imminently hazardous situation which, if not avoided, will

result in death or serious injury.

Personal Injury Caused by Electric Current!

Indicates a high-risk, imminently hazardous situation which, if not avoided, will

result in death or serious injury.

Personal Injury!

Indicates a moderate-risk, potentially hazardous situation which, if not avoided,

could result in death or serious injury.

Personal Injury!

Indicates a low-risk, potentially hazardous situation which, if not avoided, may

result in minor or moderate injury.

Damage to Property!

Indicates a potentially hazardous situation which, if not avoided, may result in

damage to property.

Damage to Property Caused by Electrostatic Discharge (ESD)!

Indicates a potentially hazardous situation which, if not avoided, may result in

damage to property.

Important Note!

Indicates a potential malfunction which, if not avoided, however, will not result in

damage to property.

Manual

1.1.0

WAGO-I/O-SYSTEM 750 Notes about this Documentation 7

750-481/003-000 2AI RTD Ex i

Additional Information:

Refers to additional information which is not an integral part of this

documentation (e.g., the Internet).

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Manual

1.1.0

8 Notes about this Documentation WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

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1.4 Number Notation

Table 1: Number Notation

Number code Example Note

Decimal 100 Normal notation

Hexadecimal 0x64 C notation

Binary '100'

'0110.0100'

In quotation marks, nibble separated with

dots (.)

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1.5 Font Conventions

Table 2: Font Conventions

Font type Indicates

italic

Names of paths and data files are marked in italic-type.

e.g.: C:\Programme\WAGO-I/O-CHECK

Menu items are marked in bold letters.

e.g.: Save

A greater-than sign between two names means the selection of a

menu item from a menu.

e.g.: File > New

Input

Designation of input or optional fields are marked in bold letters,

e.g.: Start of measurement range

“Value” Input or selective values are marked in inverted commas.

e.g.: Enter the value “4 mA” under Start of measurement range.

[Button]

Pushbuttons in dialog boxes are marked with bold letters in square

brackets.

e.g.: [Input]

[Key]

Keys are marked with bold letters in square brackets.

e.g.: [F5]

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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Important Notes 9

750-481/003-000 2AI RTD Ex i

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2 Important Notes

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This section includes an overall summary of the most important safety

requirements and notes that are mentioned in each individual section. To protect

your health and prevent damage to devices as well, it is imperative to read and

carefully follow the safety guidelines.

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2.1 Legal Bases

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2.1.1 Subject to Changes

WAGO Kontakttechnik GmbH & Co. KG reserves the right to provide for any

alterations or modifications that serve to increase the efficiency of technical

progress. WAGO Kontakttechnik GmbH & Co. KG owns all rights arising from

the granting of patents or from the legal protection of utility patents. Third-party

products are always mentioned without any reference to patent rights. Thus, the

existence of such rights cannot be excluded.

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2.1.2 Personnel Qualifications

All sequences implemented on Series 750 devices may only be carried out by

electrical specialists with sufficient knowledge in automation. The specialists

must be familiar with the current norms and guidelines for the devices and

automated environments.

All changes to the coupler or controller should always be carried out by qualified

personnel with sufficient skills in PLC programming.

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2.1.3 Use of the 750 Series in Compliance with Underlying

Provisions

Couplers, controllers and I/O modules found in the modular WAGO-I/O-

SYSTEM 750 receive digital and analog signals from sensors and transmit them

to the actuators or higher-level control systems. Using programmable controllers,

the signals can also be (pre-)processed.

The components have been developed for use in an environment that meets the

IP20 protection class criteria. Protection against finger injury and solid impurities

up to 12.5 mm diameter is assured; protection against water damage is not

ensured. Unless otherwise specified, operation of the components in wet and

dusty environments is prohibited.

Operating 750 Series components in home applications without further measures

is only permitted if they meet the emission limits (emissions of interference)

according to EN 61000-6-3. You will find the relevant information in the section

on "WAGO-I/O-SYSTEM 750"  "System Description"  "Technical Data" in

the manual for the used fieldbus coupler/controller.

Manual

1.1.0

10 Important Notes WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

Appropriate housing (per 94/9/EG) is required when operating the WAGO-I/O-

SYSTEM 750 in hazardous environments. Please note that a prototype test

certificate must be obtained that confirms the correct installation of the system in

a housing or switch cabinet.

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2.1.4 Technical Condition of Specified Devices

The components to be supplied Ex Works, are equipped with hardware and

software configurations, which meet the individual application requirements.

WAGO Kontakttechnik GmbH & Co. KG will be exempted from any liability in

case of changes in hardware or software as well as to non-compliant usage of

components.

Please send your request for modified and new hardware or software

configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Important Notes 11

750-481/003-000 2AI RTD Ex i

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2.2 Safety Advice (Precautions)

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For installing and operating purposes of the relevant device to your system the

following safety precautions shall be observed:

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Do not work on components while energized!

All power sources to the device shall be switched off prior to performing any

installation, repair or maintenance work.

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Installation only in appropriate housings, cabinets or in electrical operation

rooms!

The WAGO-I/O-SYSTEM 750 and its components are an open system. As such,

install the system and its components exclusively in appropriate housings,

cabinets or in electrical operation rooms. Allow access to such equipment and

fixtures to authorized, qualified staff only by means of specific keys or tools.

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Replace defective or damaged devices!

Replace defective or damaged device/module (e.g., in the event of deformed

contacts), since the long-term functionality of device/module involved can no

longer be ensured.

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Protect the components against materials having seeping and insulating

properties!

The components are not resistant to materials having seeping and insulating

properties such as: aerosols, silicones and triglycerides (found in some hand

creams). If you cannot exclude that such materials will appear in the component

environment, then install the components in an enclosure being resistant to the

above-mentioned materials. Clean tools and materials are imperative for handling

devices/modules.

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Cleaning only with permitted materials!

Clean soiled contacts using oil-free compressed air or with ethyl alcohol and

leather cloths.

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Manual

1.1.0

12 Important Notes WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

Do not use any contact spray!

Do not use any contact spray. The spray may impair contact area functionality in

connection with contamination.

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Do not reverse the polarity of connection lines!

Avoid reverse polarity of data and power supply lines, as this may damage the

devices involved.

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Avoid electrostatic discharge!

The devices are equipped with electronic components that you may destroy by

electrostatic discharge when you touch. Pay attention while handling the devices

to good grounding of the environment (persons, job and packing).

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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Device Description 13

750-481/003-000 2AI RTD Ex i

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3 Device Description

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The Analog Input Module 750-481/003-000 (2AI RTD Ex i) processes signals

from resistance sensors that are operating in hazardous environments of Zones 0

and 1. It allows the connection of Pt and Ni resistance sensors potentiometers

Depending on the operating mode, the resistance value is converted to a

temperature or directly sent out by the module. A microprocessor within the

module is used for converting and linearizing the measured resistance value into a

numeric value proportional to the temperature of the selected resistance sensor.

The operating mode can be set by using the WAGO-I/O-CHECK 2 start-up and

diagnostic tool (Item No.: 759-302). The default setting is Pt 100.

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Installation only in zone 2 or in non-hazardous environments!

The installation of the WAGO-I/O-SYSTEM 750 fieldbus couplers/ controllers

and I/O modules is only to be done in zone 2 or in non-hazardous environments.

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To fulfill Ex i regulations, only passive transducers, that means without their own

voltage supply, like adjustable resistances, pressure, flow and level meters, may

be connected to the input module.

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The transducers are directly supplied with 24V from the I/O module.

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The module has two input channels allowing the direct connection of two 2- or 3-

wire resistance sensors.

For example, two 3-wire sensors can be connected either to +R1, RL1 and -R1 or

to +R2, RL2 and -R2.

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The assignment of the connections is described in the "Connections" section.

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Connection examples are in the "Connecting devices - connection examples"

section.

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Each input channel of a module has a shield (screen) connection (S).

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The shield connection is fed directly to the carrier rail and contact is made

automatically by snapping the module onto the rail.

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The "ready" state of the respective channel and the internal data communication is

indicated by a green function LED.

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A red fault LED per channel indicates a wire break, a short circuit or that the

signal is outside the measuring range.

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The meaning of the LEDs are described in the chapter „Display Elements“.

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Manual

1.1.0

14 Device Description WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

The Ex i I/O modules shall only be supplied using the Ex i 24VDC potential

feed module!

An additional supply module 750-625, DC 24 V Ex i must be added for the

approved intrinsically safe field side supply voltage of 24 V.

Ex i

606/625

435

535 485

585

Ex i Ex i Ex i Ex i

24V

24V 24V

Electronic

Field

Potential 1

Field

Potential 2

End module

Bus coupler / Controller

I/O modules

* 750-606 with electronic fuse and diagnostics

750-625 with wire fuse, without diagnostics

750-625/000-001 with electronic fuse, without diagnostics

Figure 1: Supply Principle Ex i

s: 17.14 /Serie 750 (W AGO-I/O-SYSTEM)/Gerä tebeschreibung/Be schreibung/Versor gung/Versorgung 24 V, 0 V über Leistungskontakte Ex i @ 4\mod_1242218496140_2 1.doc @ 33110 @ @ 1

The Ex i I/O module receives the 24V voltage supply for the field level from an

upstream Ex i I/O module or from an Ex i power supply module via the power

contacts used as blade contacts. It then provides this potential to subsequent I/O

modules via the power contacts used as spring contacts.

s: 17.15 /Serie 750 (W AGO-I/O-SYSTEM)/W ichtige Erläuterungen/Si cherheitshinweise/ Achtung/Achtung: Maximaler Strom Ex i Einspei sung 750-06xx 0,5 A / 1, 0 A @ 7\mod_1274358256668_2 1.doc @ 56898 @ @ 1

Do not exceed maximum current via power contacts!

The maximum current available from the 750-625 Ex-i Supply Module is

500 mA.

The maximum current available from the 750-606 or 750-625/000-001 Ex-i

Supply Module is 1000 mA.

Greater currents can damage the power contacts.

When configuring the system, ensure that this current is not exceeded. If

exceeded, an additional potential feed module must be used.

s: 17.16 /Serie 750 (W AGO-I/O-SYSTEM)/W ichtige Erläuterungen/Si cherheitshinweise/ Warnung/War nung: Ex i Luft- und Kriec hstrecken einhalten @ 4\mod_1241 505101078_21.doc @ 32290 @ @ 1 Po

Manual

1.1.0

WAGO-I/O-SYSTEM 750 Device Description 15

750-481/003-000 2AI RTD Ex i

Keep the air and creep distances between intrinsically safe segments!

If the employment of further DC 24 V Ex i Supply modules is necessary for

reasons of extent of utilization, four Separation modules (750-616) must be used

to guarantee the distance between the intrinsically safe segments.

s: 17.17 /Serie 750 (W AGO-I/O-SYSTEM)/W ichtige Erläuterungen/Si cherheitshinweise/ Hinweis/Hinweis: Potentialeinspeis eklemme für Erde ei nsetzen! @ 3\mod_12264990374 68_21.doc @ 25023 @ @ 1 Po

Use potential feed module for Ground (earth)!

The I/O module has no power contacts for PE intake and transfer. Use a potential

feed module when a PE feed is needed for the subsequent I/O modules.

s: 17.18 /Serie 750 (W AGO-I/O-SYSTEM)/Gerä tebeschreibung/Be schreibung/Versorgung/ Galvanische Trennung Feld/SystePo

m @ 3\mod_1233756478750_ 21.doc @ 27102 @ @ 1

The field level and the system level are electrically isolated from one another.

s: 17.19 /Serie 750 (W AGO-I/O-SYSTEM)/Gerä tebeschreibung/Be schreibung/Versorgung/ Anordnung in Ex i-Seg ment beliebig @ 4\mod_124 1506600203_21.doc @ 32297 @ @ 1

Any configuration of the input modules is possible within an intrinsically safe

segment when configuring the fieldbus node. An arrangement in groups within the

group of potentials is not necessary.

s: 17.20 /Serie 750 (W AGO-I/O-SYSTEM)/Gerä tebeschreibung/Be schreibung/Einsa tzbereich/Einsa tzbereich 750-xxxx alle Ko ppler/Control ler ohne Economy-Kopp ler @ 3\mod_1232541867468_21. doc @ 26525 @ @ 1

The I/O module 750-481/003-000 can be used with all fieldbus

couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy

types 750-320, -323, -324 and -327).

s: 17.21 /Serie 750 (W AGO-I/O-SYSTEM)/Gerä tebeschreibung/Be schreibung/Einsa tzbereich/Hinweise/ Information: Allge meine Informationen z u Ex i @ 4\mod_1241507736531_ 21.doc @ 32301 @ @ 1

Further Information about explosion prevention!

General information to the explosion prevention is in the manual chapter

"Use in Hazardous Environments" described!

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Manual

1.1.0

16 Device Description WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

s: 19 /Alle Serien ( Allgemeine Module)/Über schriften für alle Seri en/Ansicht - Überschr ift 2 @ 4\mod_124098421734 3_21.doc @ 31958 @ 2 @ 1 Po

3.1 View

s: 20 /Serie 750 (W AGO-I/O-SYSTEM)/Geräteb eschreibung/Ansic ht/Analogeingangskl emmen/Ansicht 750- 0481 @ 5\mod_1246000393 593_21.doc @ 36136 @ @ 1

13 14

+R1 +R2

-R1 -R2

750-481/

15 16

003-000

Fig. 2: View

Table 3: Caption acc. to figure “View“

Nr. Designation Description Details see chapter

1 ---

Marking possibility with

Mini-WSB

---

2 A, B, E, F Status-LEDs

„Technical manual“ >

„Display elements“

3 --- Data contacts

„Technical manual “ >

„Connections“

4 1, 3, 4, 5, 7 ,8

CAGE CLAMP

- supplies

Resistance sensors

„Technical manual “ >

„Connections“

5 --- Power jumper contacts +24 V

„Technical manual “ >

„Connections“

6 --- Release clip

„Assembly“ > „Mounting

device““

7 --- Power jumper contacts 0 V

„Technical manual “ >

„Connections“

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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Device Description 17

750-481/003-000 2AI RTD Ex i

s: 22 /Alle Serien ( Allgemeine Module)/Über schriften für alle Seri en/Anschlüsse - Übersc hrift 2 @ 4\mod_1240984262 656_21.doc @ 31961 @ 2 @ 1 Po

3.2 Connectors

s: 23 /Serie 750 (W AGO-I/O-SYSTEM)/Geräteb eschreibung/Ansch lüsse/Datenkontak te/Klemmenbus - Überschr ift 3 @ 6\mod_1256294 684083_21.doc @ 43660 @ 3 @ 1

3.2.1 Data Contacts/Internal Bus

s: 24.1 /Serie 750 (W AGO-I/O-SYSTEM)/Gerä tebeschreibung/Ansc hlüsse/Datenkont akte @ 3\mod_12317712591 87_21.doc @ 26002 @ @ 1

Communication between the coupler/controller and the bus modules as well as the

system supply of the bus modules is carried out via the internal bus. It is

comprised of 6 data contacts, which are available as self-cleaning gold spring

contacts.

Figure 3: Data contacts

s: 24.2 /Serie 750 (W AGO-I/O-SYSTEM)/Wi chtige Erläuterungen/Si cherheitshinweise/ Achtung/Achtung: Busklemmen nicht auf Gol dfederkontakte legen! @ 7\mod_1266318463636_ 21.doc @ 50695 @ @ 1

Do not place the I/O modules on the gold spring contacts!

Do not place the I/O modules on the gold spring contacts in order to avoid soiling

or scratching!

s: 24.3 /Serie 750 (W AGO-I/O-SYSTEM)/Wi chtige Erläuterungen/Si cherheitshinweise/ Achtung/Achtung: ESD - Auf gute Erdung der Umgebun g achten! @ 7\mod_1266318 538667_21.doc @ 50708 @ @ 1 Po

Ensure that the environment is well grounded!

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. data contacts.

s: 25 /Dokumentation al lgemein/Glieder ungselemente/---Seitenwechsel--- @ 3\mod_1221108045078 _0.doc @ 21810 @ @ 1 Po

Manual

1.1.0

18 Device Description WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

Manual

1.1.0

s: 26 /Serie 750 (W AGO-I/O-SYSTEM)/Geräteb eschreibung/Ansch lüsse/Leistungsko ntakte/Feldversor gung - Überschrif t 3 @ 6\mod_1256294692864_21. doc @ 43664 @ 3 @ 1 Po

3.2.2 Power Contacts/Field Supply

s: 27.1 /Serie 750 (W AGO-I/O-SYSTEM)/Wi chtige Erläuterungen/Si cherheitshinweise/ Vorsicht/Vorsi cht: Verletzungsgefa hr durch scharfkantig e Messerkontakte! @ 6\ mod_1256193279401_21. doc @ 43414 @ @ 1

Risk of injury due to sharp-edged male contacts!

The male contacts are sharp-edged. Handle the module carefully to prevent injury.

s: 27.2 /Serie 750 (W AGO-I/O-SYSTEM)/Gerä tebeschreibung/Ansc hlüsse/Leistungsko ntakte 2 LK (Messer/ Feder) @ 7\modPo

_1266317883167_21. doc @ 50688 @ @ 1

The I/O module 750-481/003-000 has 2 self-cleaning power jumper contacts that

supply and transmit power for the field side. The contacts on the left side of the

I/O module are designed as male contacts and the contacts on the right side as

spring contacts.

Table 4: Power jumper contacts

Connection Type Number Function

1 Blade contact 2

Infeed of the field

supply voltage

and 0 V)

Figure 4: Power

jumper contacts

2 Spring contact 2

Forwarding of the

field supply voltage

and 0 V)

s: 27.3 /Serie 750 (W AGO-I/O-SYSTEM)/Wi chtige Erläuterungen/Si cherheitshinweise/ Achtung/Achtung: Maximaler Strom Ex i Einspei sung 750-06xx 0,5 A / 1, 0 A @ 7\mod_1274358256668_21.doc @ 56898 @ @ 1

Do not exceed maximum current via power contacts!

The maximum current available from the 750-625 Ex-i Supply Module is

500 mA.

The maximum current available from the 750-606 or 750-625/000-001 Ex-i

Supply Module is 1000 mA.

Greater currents can damage the power contacts.

When configuring the system, ensure that this current is not exceeded. If

exceeded, an additional potential feed module must be used.

s: 27.4 /Serie 750 (W AGO-I/O-SYSTEM)/Wi chtige Erläuterungen/Si cherheitshinweise/ Hinweis/Hinweis: Potentialeinspeise klemme für Erde einsetz en! @ 3\mod_12264990374 68_21.doc @ 25023 @ @ 1 Po

Use potential feed module for Ground (earth)!

The I/O module has no power contacts for PE intake and transfer. Use a potential

feed module when a PE feed is needed for the subsequent I/O modules.

s: 28 /Dokumentation al lgemein/Glieder ungselemente/---Seitenwechsel--- @ 3\mod_1221108045078 _0.doc @ 21810 @ @ 1 Po

WAGO-I/O-SYSTEM 750 Device Description 19

750-481/003-000 2AI RTD Ex i

Manual

1.1.0

s: 29 /Serie 750 (W AGO-I/O-SYSTEM)/Geräteb eschreibung/Ansch lüsse/CAGE CLAMP-Ansc hlüsse - Überschrif t 3 @ 6\mod_1256296337770_21. doc @ 43674 @ 3 @ 1 Po

3.2.3 CAGE CLAMP

Connections

s: 30 /Serie 750 (W AGO-I/O-SYSTEM)/Geräteb eschreibung/Ansch lüsse/Analogeingan gsklemmen/Anschlüsse 7 50-0481 @ 5\mod_124 6000467515_21.doc @ 36144 @ @ 1

Table 5: Connections

Connection

Chann

Designation Function

1 (left) +R 1 Input AI 1: Sensor +R

3 (left) RL 1 Input AI 1: Sensor RL

4 (left) -R 1 Input AI 1: Sensor +R

4 (right)

S Input AI 1: Shield connection

5 (right) +R 2 Input AI 2: Sensor +R

7 (right) RL 2 Input AI 2: Sensor RL

8 (left) -R 2 Input AI 2: Sensor +R

8 (right)

S Input AI 2: Shield connection

Power

jumper

contacts

- +24 V Field supply 24 V

+R1

+R2

750-481 / 003-000

RL1

RL2

-R1

-R2

+24 V

RL 1

RL 2

+R 1

+R 2

-R 1

-R 2

Fig. 5: Connections

Power

jumper

contacts

- 0 V Field supply 0 V

s: 31 /Dokumentation al lgemein/Glieder ungselemente/---Seitenwechsel--- @ 3\mod_1221108045078 _0.doc @ 21810 @ @ 1

20 Device Description WAGO-I/O-SYSTEM 750

750-481/003-000 2AI RTD Ex i

Manual

1.1.0

s: 32 /Alle Serien ( Allgemeine Module)/Über schriften für alle Seri en/Anzeigeelemente - Überschrift 2 @ 4\ mod_1240984390875_21.doc @ 31964 @ 2 @ 1 Po

3.3 Display Elements

s: 33 /Serie 750 (W AGO-I/O-SYSTEM)/Geräteb eschreibung/Anzei geelemente/Analogeing angsklemmen/Anzei geelemente 750-0481 @ 5\mod_1246000594343_ 21.doc @ 36156 @ @ 1

Table 6: Display elements

LED Channel

Desig-

nation

State Function

off

No operational readiness or the

internal data bus communication is

interrupted

Status

AI 1

green

Operational readiness and trouble-

free internal data bus communication

off Normal operation

Error

AI 1

red

Overrange/underflow of the

admissible measuring range, broken

wire, short circuit

off

No operational readiness or the

internal data bus communication is

interrupted

State

AI 2

green

Operational readiness and trouble-

free internal data bus communication

of Normal operation

13 14 15 16

Figure 6: Display

elements

Error

AI 2

red

Overrange/underflow of the

admissible measuring range, broken

wire, short circuit

s: 34 /Alle Serien ( Allgemeine Module)/Über schriften für alle Seri en/Bedienelemente - Überschrift 2 @ 4\mod_123919 1655456_21.doc @ 30439 @ 2 @ 1

3.4 Operating Elements

s: 35 /Serie 750 (W AGO-I/O-SYSTEM)/Geräteb eschreibung/Bedie nelemente/Bediene lemente Busklemme 750- xxxx nicht vorhanden @ 4\ mod_1236322031125_21.d oc @ 28063 @ @ 1

The I/O module 750-481/003-000 has no operating elements.

s: 36 /Dokumentation al lgemein/Glieder ungselemente/---Seitenwechsel--- @ 3\mod_1221108045078 _0.doc @ 21810 @ @ 1

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