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48 Use in Hazardous Environments

WAGO-I/O-SYSTEM 750

750-439 8DI NAMUR Ex i

Manual

Version 1.3.0, valid from HW Version 03, SW Version 03

9

Use in Hazardous Environments

The

WAGO I/O SYSTEM 750

(electrical equipment) is designed for use in Zone

2 hazardous areas and shall be used in accordance with the marking and

installation regulations.

The following sections include both the general identification of components

(devices) and the installation regulations to be observed. The individual

subsections of the “Installation Regulations” section must be taken into account if

the I/O module has the required approval or is subject to the range of application

of the ATEX directive.

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Summary of Contents for 750-439

Page 1: ...Manual WAGO I O SYSTEM 750 750 439 8DI NAMUR Ex i 8 Channel Digital Input Module NAMUR Ex i Proximity Sensor acc to EN 60947 5 6 Version 1 3 0 valid from HW Version 03 SW Version 03 ...

Page 2: ... 571 8 87 84 45 55 E Mail support wago com 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 documentation wago com We wish to point out that the software and hardware terms as well as the trademarks of compani...

Page 3: ...ipment 11 2 1 4 1 2 Packaging 12 2 2 Safety Advice Precautions 13 3 Device Description 15 3 1 View 16 3 2 Connectors 17 3 2 1 Data Contacts Local Bus 17 3 2 2 Power Jumper Contacts Field Supply 18 3 2 3 CAGE CLAMP Connectors 19 3 3 Display Elements 20 3 4 Operating Elements 21 3 5 Schematic Diagram 21 3 6 Technical Data 22 3 6 1 Dimensions and Weight 22 3 6 2 Power Supply 22 3 6 3 Communication 22...

Page 4: ...AGO I O CHECK 45 7 2 e COCKPIT 46 8 Diagnostics 47 8 1 Diagnostics via LED Indicators 47 9 Use in Hazardous Environments 48 9 1 Marking Configuration Examples 49 9 1 1 Marking for Europe According to ATEX and IECEx 49 9 1 2 Marking for the United States of America NEC and Canada CEC 53 9 2 Installation Regulations 56 9 2 1 Special Notes including Explosion Protection 56 9 2 2 Special Notes Regardi...

Page 5: ...alled and operated according to the instructions in this manual and in the manual for the used fieldbus coupler or 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 or controller which can be downloaded at www wago com There you can obtain important information including information on...

Page 6: ...ustrations 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 ...

Page 7: ... 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 b...

Page 8: ...ion WAGO I O SYSTEM 750 750 439 8DI NAMUR Ex i Manual Version 1 3 0 valid from HW Version 03 SW Version 03 Additional Information Refers to additional information which is not an integral part of this documentation e g the Internet ...

Page 9: ...paths and data files are marked in italic type e g C Program Files WAGO Software Menu 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...

Page 10: ...vironments All changes to the coupler or controller should always be carried out by qualified personnel with sufficient skills in PLC programming 2 1 3 Use of the 750 Series in Compliance with Underlying Provisions Fieldbus 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 actuators or higher level con...

Page 11: ...equirements These modules contain no parts that can be serviced or repaired by the user The following actions will result in the exclusion of liability on the part of WAGO Kontakttechnik GmbH Co KG Repairs Changes to the hardware or software that are not described in the operating instructions Improper use of the components Further details are given in the contractual agreements Please send your r...

Page 12: ... electronic equipment sent to your local collection point Improper disposal of electrical and electronic equipment can be harmful to the environment and human health 2 1 4 1 2 Packaging Packaging contains materials that can be reused PPWD 94 62 EU and 2004 12 EU packaging guidelines apply throughout Europe Directives and laws may vary nationally Environmentally friendly disposal of the packaging p...

Page 13: ...r adequate protection against UV irradiation Guarantee mechanical stability Restrict access to authorized personnel and may only be opened with tools Ensure disconnect and overcurrent protection The device is intended for installation in automation technology systems Disconnect protection is not integrated Connected systems must be protected by a fuse Provide suitable disconnect and overcurrent pr...

Page 14: ... the above mentioned materials Clean tools and materials are imperative for handling devices modules Clean only with permitted materials Clean housing and soiled contacts with propanol Do not use any contact spray Do not use any contact spray The spray may impair contact area functionality in connection with contamination Do not reverse the polarity of connection lines Avoid reverse polarity of da...

Page 15: ...y safe connection of sensors in 2 wire connection technology The sensors are connected to the CAGE CLAMP connectors DI 1 to DI 8 and 0 V The assignment of the connections is described in the Connectors section Connection examples are shown in section Connect Devices Connection Example s The status of the input channels is indicated via green status LEDs A color change to red signals an open circui...

Page 16: ... 4 Legend for Figure View Pos Description Details See Section 1 Marking possibility with Mini WSB 2 Status LEDs Device Description Display Elements 3 Data contacts Device Description Connectors 4 CAGE CLAMP connectors Device Description Connectors 5 Power jumper contacts Device Description Connectors 6 Release tab Mounting Inserting and Removing Devices ...

Page 17: ...ntacts which are available as self cleaning gold spring contacts Figure 2 Data Contacts 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 Pay attention to potential equalization from the environment The devices are equipped with electronic components that may be destroyed by electrostatic discha...

Page 18: ...O module are designed as blade contacts and those on the right side as spring contacts Figure 3 Power Jumper Contacts Table 5 Legend for Figure Power Jumper Contacts Contact Type Function 1 Spring contact Potential transmission Uv for field supply 2 Spring contact Potential transmission 0 V for field supply 3 Blade contact Potential feed in 0 V for field supply 4 Blade contact Potential feed in Uv...

Page 19: ...5 Signal voltage 6 DI 6 E6 Digital input DI 6 Signal voltage 7 DI 7 E7 Digital input DI 7 Signal voltage 8 DI 8 E8 Digital input DI 8 Signal voltage 1 8 0 V 0 V 8 Digital inputs DI 1 DI 8 Signal voltage Use shielded signal lines Only use shielded signal lines Only then can you ensure that the accuracy and interference immunity specified for the respective I O module can be achieved even in the pre...

Page 20: ...nel 3 error Digital Input 3 4 Status DI 4 Error DI 4 D Indicator signal state Channel 4 error Digital Input 4 5 Status DI 5 Error DI 5 E Indicator signal state Channel 5 error Digital Input 5 6 Status DI 6 Error DI 6 F Indicator signal state Channel 6 error Digital Input 6 7 Status DI 7 Error DI 7 G Indicator signal state Channel 7 error Digital Input 7 8 Status DI 8 Error DI 8 H Indicator signal ...

Page 21: ...vice Description 21 750 439 8DI NAMUR Ex i Manual Version 1 3 0 valid from HW Version 03 SW Version 03 3 4 Operating Elements The I O module 750 439 has no operating elements 3 5 Schematic Diagram Figure 6 Schematic Diagram ...

Page 22: ... contacts powered by Ex i with UO max 27 3 V Supply voltage system Via the local bus 5 VDC system supply and via power jumper contacts 24 VDC field supply Supply voltage sensor 8 2 V DC 0 2 V short circuit protected isolated channels Power consumption Pmax 1 2 W Power loss Pl 0 54 W Rated surge voltage 1 kV rated surge voltage between intrinsically safe and non intrinsically safe circuits 1 5 kV E...

Page 23: ...er per EN 60947 5 6 Signal current 0 NAMUR 1 2 mA Signal current 1 NAMUR 2 1 mA Input filter 3 0 ms Open circuit voltage Us 8 2 V DC Input resistance Rs 1 kΩ Input pulse length 5 ms Input pulse separation 3 ms Switching hysteresis switching current difference 0 2 mA Short circuit current 8 2 mA 0 2 mA Short circuit monitoring 6 4 mA Wire break monitoring 0 3 mA Diagnostics Short circuit wire break...

Page 24: ... Table 13 Technical Data Explosion Protection Voltage supply via power jumper contacts Ui 27 3 V Interface circuit local bus Un 5 V Um 253 V In 56 mA Pmax 1 2 W Safety data electric circuit Uo 11 76 V Io 12 4 mA Po 36 67 mW Characteristic linear Reactance without consideration of the simultaneousness Lo Co Ex ia IIC 100 mH 1 µF Ex ia IIB 100 mH 9 9 µF Ex ia I 100 mH 30 µF Reactance with considerat...

Page 25: ...plated self cleaning 3 6 7 Climatic Environmental Conditions Table 17 Technical Data Climatic Environmental Conditions Surrounding air temperature operation 0 C 55 C Surrounding air temperature storage 25 C 85 C Operating altitude 0 2000 m 2000 m upon request Relative humidity Max 5 95 without condensation Pollution degree 2 Protection type IP20 Resistance to harmful substances Acc to IEC 60068 2 ...

Page 26: ...75199 for use in Ordinary Location Korea Certification MSIP REM W43 DIM750 The following Ex approvals have been granted to 750 439 I O modules TÜV 12 ATEX 106032 X I M2 M1 Ex d ia Ma I Mb II 3 1 G Ex ec ia Ga IIC T4 Gc II 3 1 D Ex tc ia Da IIIC T135 C Dc IECEx TUN 12 0039 X Ex d ia Ma I Mb Ex ec ia Ga IIC T4 Gc Ex tc ia Da IIIC T135 C Dc TÜV 14 1911 X Ex d ia Ma I Mb Ex nA ia Ga IIC T4 Gc Ex tc ia...

Page 27: ...ranted to 750 439 I O modules Federal Maritime and Hydrographic Agency DNV GL Temperature B Humidity B Vibration B EMC B Enclosure A More information about approvals Detailed references to the approvals are listed in the document Overview Approvals WAGO I O SYSTEM 750 which you can find via the internet under www wago com DOWNLOADS Documentation System Description ...

Page 28: ...requirements Explosive atmosphere IEC 60079 7 Equipment protection by increased safety e Explosive atmospheres IEC 60079 11 Equipment protection by intrinsic safety i Explosive atmospheres IEC 60079 26 Equipment with equipment protection level EPL Ga Explosive atmospheres UL 60079 0 General requirements Explosive atmospheres UL 60079 11 Equipment protection by intrinsic safety i Explosive atmosphe...

Page 29: ...rical Equipment for Use in Class I and II Division 2 and Class III Division 1 and 2 Hazardous Classified Location EU EMC Directive 2014 30 EU EMC CE Immunity to interference EN 61000 6 2 and to EN 61131 2 EMC CE Emission of interference EN 61000 6 3 A1 and IEC 61131 2 EMC marine applications Emission of interference acc to DNV GL EMC marine applications Immunity to interference acc to DNV GL ...

Page 30: ... DI 1 DI 8 is transmitted to the fieldbus coupler controller via input data byte D0 the error status via input data byte D1 Diagnostic deactivation is transferred to the I O module via output data byte D1 Output data byte D0 determines whether a make contact or break contact is connected Table 18 Input Byte D0 Signal Status Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 IN8 IN7 IN6 IN5 IN4 IN3 IN...

Page 31: ...yte D1 0 7 Output byte D0 0 7 Explanation Short circuit wire break Signal status 0 0 Contact open or NAMUR sensor in blocking status 0 per EN 60947 5 6 0 1 Contact closed or NAMUR sensor in conductive status 1 per EN 60947 5 6 1 0 Line break 1 1 Short circuit When sensor type NC Normally Closed break contact is enabled the following logic applies Table 21 Combinations with a Connected Sensor Funct...

Page 32: ...C_ENA1 Sensor type IN1 0 NO 1 NC NC_ENA2 Sensor type IN2 0 NO 1 NC NC_ENA3 Sensor type IN3 0 NO 1 NC NC_ENA4 Sensor type IN4 0 NO 1 NC NC_ENA5 Sensor type IN5 0 NO 1 NC NC_ENA6 Sensor type IN6 0 NO 1 NC NC_ENA7 Sensor type IN7 0 NO 1 NC NC_ENA8 Sensor type IN8 0 NO 1 NC Legend ENA enabled NC Break contact Normally Closed NO Make contact Normally Open Output byte D1 is used to determine channel by ...

Page 33: ...agnostics switched off DIA_DIS5 Diagnostic blocking IN5 0 Diagnostics switched on 1 Diagnostics switched off DIA_DIS6 Diagnostic blocking IN6 0 Diagnostics switched on 1 Diagnostics switched off DIA_DIS7 Diagnostic blocking IN7 0 Diagnostics switched on 1 Diagnostics switched off DIA_DIS8 Diagnostic blocking IN8 0 Diagnostics switched on 1 Diagnostics switched off Legend DIA Diagnostics DIS disabl...

Page 34: ...onality of data and power jumper contacts Do not touch the contacts Avoid contaminating the contacts 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 Pay attention to potential equalization from the environment The devices are equipped with electronic components that may be destroyed by electro...

Page 35: ...on the right side For some I O modules the grooves are closed on the top Therefore I O modules featuring a power jumper contact on the left side cannot be snapped from the top This mechanical coding helps to avoid configuration errors which may destroy the I O modules Therefore insert I O modules only from the right and from the top Requirements for Clearances and Creepage Distances For all sectio...

Page 36: ... such a way that the groove and spring are connected to the preceding and following components Figure 8 Inserting I O Module Example 2 Press the I O module into the assembly until the I O module snaps into the carrier rail Figure 9 Snap the I O Module into Place Example 3 Check that the I O module is seated securely on the carrier rail and in the assembly The I O module must not be inserted crooke...

Page 37: ...for the data contacts and power contacts if any to the head station or to the preceding and if applicable following I O module are established 5 2 2 Removing the I O Module 1 Remove the I O module from the assembly by pulling the release tab Figure 10 Removing the I O Module Example Electrical connections for data or power jumper contacts are disconnected when removing the I O module ...

Page 38: ...nnected to each CAGE CLAMP Do not connect more than one conductor at one single connection If more than one conductor must be routed to one connection these must be connected in an up circuit wiring assembly for example using WAGO feed through terminals 1 For opening the CAGE CLAMP insert the actuating tool into the opening above the connection 2 Insert the conductor into the corresponding connect...

Page 39: ...n end module for internal bus extension 750 627 1 distance module 750 616 is sufficient an end module 750 600 no distance modules are required Do not exceed maximum current via power contacts The maximum current available from the Supply Module Ex i 750 606 or 750 625 000 001 is 1 A When configuring the system ensure that this current is not exceeded If exceeded an additional potential feed module...

Page 40: ...gned as blade contacts The Ex i I O module 750 439 provides these potentials to subsequent I O modules via the power contacts designed as spring contacts Figure 12 Supply Principle Ex i Table 24 Legend for Figure Ex i Power Supply Concept No Explanation 1 Fieldbus coupler controller 2 Ex i supply module 750 606 750 625 000 001 3 Ex i I O modules 4 End module US System supply 24 VDC UF1 Field suppl...

Page 41: ... 1 Fieldbus coupler controller 2 Filter module if required 3 Ex i supply module 4 Ex i I O modules 5 End module Overvoltage categories and rated surge voltage see EN 61010 2 201 6 2 1 Power Supply Concept for Marine Applications in Ex i Use the appropriate filter module in marine applications Power to the Ex i supply module is supplied via the appropriate filter module when using Ex i I O modules ...

Page 42: ... 002 or Filter module 24 VDC HI 750 626 020 000 or Filter module 24 VDC HI T 750 626 025 001 3 Supply module 24 VDC 750 602 or Supply module 24 VDC with fuse 750 601 or Supply module 24 VDC with fuse and diagnostics 750 610 4 Filter module 24 VDC HI GF 750 624 020 002 or Filter module 24 VDC HI 750 624 020 000 5 Supply module 24 VDC Ex i with diagnostics 750 606 or Supply module 24 VDC Ex i 750 62...

Page 43: ...Filter module 24 VDC HI GF 750 626 020 002 or Filter module 24 VDC HI 750 626 020 000 or Filter module 24 VDC HI Temperature 750 626 025 001 3 Filter module 24 VDC HI GF 750 626 020 002 or Filter module 24 VDC HI 750 626 020 000 or Filter module 24 VDC HI T 750 626 025 001 4 Supply module 24 VDC Ex i with diagnostics 750 606 or Supply module 24 VDC Ex i 750 625 000 001 5 Ex I I O modules 6 End Mod...

Page 44: ... Connection Example Figure 16 Connection Example with 8 Sensors on Channel 1 to 8 Use shielded signal lines Only use shielded signal lines Only then can you ensure that the accuracy and interference immunity specified for the respective I O module can be achieved even in the presence of interference acting on the signal cable ...

Page 45: ...entified the process values the process values in Monitor Mode or Control Mode are first displayed using the generic inputs 750 4xx 16DI 16DO Rename the I O module by marking it in the corresponding dialog and confirming your selection by clicking the OK button Figure 17 Rename I O Module As soon as you have renamed the I O module the display of the I O module is adjusted The correct view includin...

Page 46: ...en Contact closed Short circuit Wire break Sensor type IN Normally closed NC Normally open NO DO Bit x 0 Normally open NO Normally closed NC DO Bit x 1 Diagnosis lock IN Diagnostic block enabled D1 Bit x 1 Diagnostic block disabled D1 Bit x 0 for NO only for NC only Also the channel designation default Channel 1 Channel 8 can be edited The respective designations are displayed in the navigation tr...

Page 47: ... evaluation of the signaling Table 31 Signal Evaluation for Each Channel LED A H LED Status Possible interpretation Make contact NO Break contact NC Off Not ready for operation Contact open or NAMUR sensor in blocking status 0 per EN 60947 5 6 Contact closed or NAMUR sensor in conductive status 1 per EN 60947 5 6 Green Contact closed or NAMUR sensor in conductive status 1 per EN 60947 5 6 Contact ...

Page 48: ... Zone 2 hazardous areas and shall be used in accordance with the marking and installation regulations The following sections include both the general identification of components devices and the installation regulations to be observed The individual subsections of the Installation Regulations section must be taken into account if the I O module has the required approval or is subject to the range ...

Page 49: ...DI NAMUR Ex i Manual Version 1 3 0 valid from HW Version 03 SW Version 03 9 1 Marking Configuration Examples 9 1 1 Marking for Europe According to ATEX and IECEx Figure 19 Marking Example per ATEX and IECEx Figure 20 Text Detail Marking Example per ATEX and IECEx ...

Page 50: ...ure IIIC Dust group Explosive dust atmosphere T135 C Maximum surface temperature of the enclosure no dust bin Dc Level of equipment protection EPL Mining I Device group Mining M2 Device category High degree of safety Ex Explosion protection mark d Protection type Pressure tight encapsulation I Electrical devices in potentially explosive mines Mb Level of equipment protection EPL Gases II Device gr...

Page 51: ... 51 750 439 8DI NAMUR Ex i Manual Version 1 3 0 valid from HW Version 03 SW Version 03 Figure 21 Marking Example of an Approved I O Module Ex i per ATEX and IECEx Figure 22 Text Detail Marking Example of an Approved I O Module Ex i per ATEX and IECEx ...

Page 52: ...ce temperature of the enclosure no dust bin Dc Level of equipment protection EPL Mining I Device group Mining M2 M1 Device category High level of safety with circuits that offer a very high level of safety Ex Explosion protection mark d Protection type Pressure tight encapsulation ia Ma Protection type and equipment protection level EPL Associated equipment with intrinsically safe circuits I Elect...

Page 53: ...United States of America NEC and Canada CEC Figure 23 Marking Example According to NEC Figure 24 Text Detail Marking Example According to NEC 500 Table 34 Description of Marking Example According to NEC 500 Marking Description CL I Explosion protection gas group DIV 2 Area of application Grp A B C D Explosion group gas group op temp code T4 Temperature class ...

Page 54: ... equipment protection level EPL Associated apparatus with intrinsic safety circuits for use in Zone 20 IIC Group T4 Temperature class Gc Equipment protection level EPL Figure 26 Text Detail Marking Example for Approved Ex i I O Module According to NEC 506 Table 36 Description of Marking Example for Approved Ex i I O Modules According to NEC 506 Marking Description CI I Explosion protection group Z...

Page 55: ...ction mark nA Type of protection ia IIIC Type of protection and equipment protection level EPL Associated apparatus with intrinsic safety circuits for use in Zone 20 IIC Group T4 Temperature class Gc Equipment protection level EPL X Symbol used to denote specific conditions of use Gases Ex Explosion protection mark nA Type of protection ia Ga Type of protection and equipment protection level EPL A...

Page 56: ...e printing when replacing components The product is an open system As such the product must only be installed in appropriate enclosures or electrical operation rooms to which the following applies Can only be opened using a tool or key Inside pollution degree 1 or 2 In operation internal air temperature within the range of 0 C Ta 55 C or 20 C Ta 60 C for components with extension number 025 xxx or...

Page 57: ...erface in particular Operating DIP switches coding switches or potentiometers Replacing fuses Wiring connecting or disconnecting of non intrinsically safe circuits is only permitted in the following cases The circuit is disconnected from the power supply The area is known to be non hazardous Outside the device suitable measures must be taken so that the rated voltage is not exceeded by more than 4...

Page 58: ...be connected to telephone networks or telecommunication cables WARNING The radio receiver module 750 642 may only be used to connect to external antenna 758 910 WARNING Product components with fuses must not be fitted into circuits subject to overloads These include e g motor circuits WARNING When installing I O module 750 538 Control Drawing No 750538 in the manual must be strictly observed Addit...

Page 59: ...xx for Field 2 42 Figure 15 Power Supply Concept for Marine Applications in Ex i Class B shown with 750 626 xxx xxx for Field 2 43 Figure 16 Connection Example with 8 Sensors on Channel 1 to 8 44 Figure 17 Rename I O Module 45 Figure 18 Setting Options in WAGO I O CHECK 46 Figure 19 Marking Example per ATEX and IECEx 49 Figure 20 Text Detail Marking Example per ATEX and IECEx 49 Figure 21 Marking ...

Page 60: ...31 Table 21 Combinations with a Connected Sensor Functioning as a Break Contact 31 Table 22 Output Byte D0 Enable Sensor Type NC 32 Table 23 Output Byte D1 Diagnostic Status 33 Table 24 Legend for Figure Ex i Power Supply Concept 40 Table 25 Legend for Figure Overvoltage Categories 41 Table 26 Legend for figure Power Supply Concept for Marine Applications in Ex i Class A shown with 750 624 xxx xxx...

Page 61: ...i Manual Version 1 3 0 valid from HW Version 03 SW Version 03 Table 36 Description of Marking Example for Approved Ex i I O Modules According to NEC 506 54 Table 37 Description of Marking Example for Approved Ex i I O Modules According to CEC 18 attachment J 55 ...

Page 62: ...WAGO Kontakttechnik GmbH Co KG Postfach 2880 D 32385 Minden Hansastraße 27 D 32423 Minden Phone 49 571 887 0 Fax 49 571 887 844169 E Mail info wago com Internet www wago com ...

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