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WAGO 750-637, Manual

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WAGO I/O System 750 

Use in Hazardous Environments  57 

750-637 Incremental Encoder Interfaces 

 

 

 

Manual 

 

Version 1.6.1  

Public 

8.1.2 

Marking for the United States of America (NEC) and Canada 

(CEC) 

 

 

Figure 18: Marking Example According to NEC 

 

 

Figure 19: Text Detail – Marking Example According to NEC 500 

Table 41: 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 

 

 

 

 

Summary of Contents for 750-637

Page 1: ...Public Manual WAGO I O System 750 750 637 xxx xxx Incremental Encoder Interfaces Version 1 6 1 ...

Page 2: ...7 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 companies used ...

Page 3: ...ns 13 3 Device Description 16 3 1 View 18 3 2 Connectors 19 3 2 1 Data Contacts Local Bus 19 3 2 2 Power Jumper Contacts Field Supply 19 3 2 3 CAGE CLAMP Connectors 20 3 2 3 1 Versions 750 637 and 750 637 000 003 20 3 2 3 2 Version 750 637 000 001 21 3 2 3 3 Versions 750 637 000 002 and 750 637 000 004 22 3 3 Display Elements 23 3 4 Operating Elements 25 3 5 Schematic Diagram 25 3 6 Technical Data...

Page 4: ... 50 7 Connect Devices 51 7 1 Connecting a Conductor to the CAGE CLAMP 51 8 Use in Hazardous Environments 52 8 1 Marking Configuration Examples 53 8 1 1 Marking for Europe According to ATEX and IECEx 53 8 1 2 Marking for the United States of America NEC and Canada CEC 57 8 2 Installation Regulations 60 8 2 1 Special Notes including Explosion Protection 60 8 2 2 Special Notes Regarding UL Hazardous ...

Page 5: ...ental Encoder Interfaces 24 V 32 Bit differential 750 637 000 002 Incremental Encoder Interfaces 24 V 32 Bit single ended 750 637 000 003 Incremental Encoder Interfaces RS 422 32Bit Single Interpreter 750 637 000 004 Incremental Encoder Interfaces 24 V 32 Bit single ended cam outputs Documentation Validity for Variants Unless otherwise indicated the information given in this documentation applies ...

Page 6: ...opyright 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: ...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 Electr...

Page 8: ...cumentation WAGO I O System 750 750 637 Incremental Encoder Interfaces Manual Version 1 6 1 Public Additional Information Refers to additional information which is not an integral part of this documentation e g the Internet ...

Page 9: ...d 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 Enter t...

Page 10: ...pler 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 control systems Using controllers th...

Page 11: ...s The devices to be supplied ex works are equipped with hardware and software configurations which meet the individual application requirements 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 ...

Page 12: ...nic 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 protects ...

Page 13: ...ction against contact Prevent fire from spreading outside of the enclosure Offer 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 sys...

Page 14: ... in the event of deformed contacts 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 enclosur...

Page 15: ...rge The devices are equipped with electronic components that may be destroyed by electrostatic discharge when touched Please observe the safety precautions against electrostatic discharge per DIN EN 61340 5 1 3 When handling the devices please ensure that environmental factors personnel work space and packaging are properly grounded ...

Page 16: ...e inputs 24 V differential C C Initial point input 24 V differential Latch Gate Ref Input 24 V N1 N2 Output 24 V Table 6 Inputs Outputs Versions 750 637 000 002 and 750 637 000 004 Inputs Outputs A B Quadrature inputs 24 V single ended C Initial point input 24 V single ended Latch Gate Ref Input 24 V N1 N2 Output 24 V A counter with quadrature decoder as well as a latch for the zero impulse can be...

Page 17: ...described in the Display Elements section Power supply for 24 V encoders is provided via the 24 V field supply connections The encoder ground must be connected with the 0 V module Power supply for 5 V encoders can be tapped directly at connections Ve and V0 of the standard module 750 637 Use a power supply module Use a power supply module for field side power supply of downstream I O modules The f...

Page 18: ...Figure 1 View Table 7 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 Release tab Mounting Inserting and Removing Devices ...

Page 19: ...g 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 discharge When handling the devices please ensure that envir...

Page 20: ...7 000 003 Table 8 Legend for Figure CAGE CLAMP Connectors Versions 750 637 and 750 637 000 003 Designation Connector Function A 1 left Connection of sensor B 2 left C 3 left A 5 left B 6 left C 7 left 5 V 4 left Sensor supply 0 V 8 left 24 V 1 right Supply voltage input 0 V 5 right N1 2 right Cam outputs N2 6 right Latch 3 right Latch input Gate 7 right Gate input Ref 4 right Ref input Shield scre...

Page 21: ...1 Table 9 Legend for CAGE CLAMP Connectors Version 750 637 000 001 Figure Designation Connection Function A 1 left Sensor connection B 2 left C 3 left A 5 left B 6 left C 7 left 4 left Not assigned 8 left 24 V 1 right Power supply input 0 V 5 right N1 2 right Cam outputs N2 6 right Latch 3 right Latch input Gate 7 right Gate input Ref 4 right Ref input Shield 8 right Shield connection DIN rail ...

Page 22: ...50 637 000 004 Table 10 Legend for CAGE CLAMP Connectors Versions 750 637 000 002 and 750 637 000 004 Figure Designation Connection Function A 1 left Sensor connection B 2 left C 3 left 4 left Not assigned 5 left 6 left 7 left 8 left 24 V 1 right Power supply input 0 V 5 right N1 2 right Cam outputs N2 6 right Latch 3 right Latch input Gate 7 right Gate input Ref 4 right Ref input Shield 8 right S...

Page 23: ...tate Function A A left Off U A U A 0 2 V Green U A U A 0 2 V or both inputs open B C left Off U A U A 0 2 V Green U A U A 0 2 V or both inputs open C B left Off U B U B 0 2 V Green U B U B 0 2 V or both inputs open Latch D left Off Input 0 V or open Green Input 24 V Gate A right Off Input 0 V or open Green Input 24 V Ref C right Off Input 0 V or open Green Input 24 V N1 B right Off Output 0 V Gree...

Page 24: ... 0 V or open Green Input 24 V Ref C right Off Input 0 V or open Green Input 24 V N1 B right Off Output 0 V Green Output 24 V N2 D right Off Output 0 V Green Output 24 V Table 13 Legend for the Display Elements Figure Versions 750 637 000 002 and 750 637 000 004 Designation LED State Function A A left Off 0 V U A 5 V or input open Green 30 V U B 15 V B C left Off 0 V U C 5 V or input open Green 30 ...

Page 25: ...iption 25 750 637 Incremental Encoder Interfaces Manual Version 1 6 1 Public 3 4 Operating Elements The I O module 750 637 has no operating elements 3 5 Schematic Diagram Figure 7 Schematic Diagram Versions 750 637 and 750 637 000 003 ...

Page 26: ...iption WAGO I O System 750 750 637 Incremental Encoder Interfaces Manual Version 1 6 1 Public Figure 8 Schematic Diagram Version 750 637 000 001 Figure 9 Schematic Diagram Versions 750 637 000 002 and 750 637 000 004 ...

Page 27: ...Technical Data Power Supply Power supply Via CAGE CLAMP connectors 24 VDC 15 20 Current consumption max 24 VDC 12 mA without encoder or load Current consumption internal 110 mA Encoder output currentmax 300 mA Encoder operating voltage 24 VDC at 750 637 5 VDC for 750 637 000 003 Undervoltage diagnostic for version 750 637 000 004 0 28 8 VDC Supply voltage 20 4 VDC 1 0 VDC Supply voltage 5 VDC 3 6 ...

Page 28: ...r Counter 32 bits binary Capture mode 32 bits Preload mode 32 bits Zero impulse latch 32 bits Commands Reading setting activating Limit frequency 250 kHz LATCH input time constant 364 µs GATE time constant 32 µs REF time constant 32 µs 3 6 5 Digital Outputs N1 N2 Table 18 Technical Data Digital Outputs N1 N2 Output voltage 24 VDC Output currentmax 0 5 A short circuit protected Output resistancetyp...

Page 29: ... U C U C 0 2 VDC 1 U C U C 0 2 VDC Table 21 Technical Data Quadrature Inputs A B C Versions 750 637 000 002 and 750 637 000 004 Input voltage A 0 0 VDC U A 5 VDC 1 30 VDC U A 15 VDC Input voltage B 0 0 VDC U B 5 VDC 1 30 VDC U B 15 VDC Input voltage C 0 0 VDC U C 5 VDC 1 30 VDC U C 15 VDC Table 22 Technical Data Quadrature Inputs A A B B C C Version 750 637 000 001 Input voltage A A 0 30 VDC U A U...

Page 30: ...01 750 637 000 003 750 637 000 002 750 637 000 004 Input 750 637 RS 422 750 637 000 003 750 637 000 001 Differential 750 637 000 002 Single ended 750 637 000 004 Encoder voltage 750 637 5 VDC 750 637 000 003 750 637 000 001 24 VDC 750 637 000 002 750 637 000 004 Evaluation 750 637 4 750 637 000 001 750 637 000 002 750 637 000 004 750 637 000 003 1 Data width 750 637 32 bits 750 637 000 001 750 637...

Page 31: ...ature 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 42 and IEC 60068 2 43 Maximum pollutant concentration at relative humidity 75 SO2 25 ppm H2S 10 ppm Special conditions Ensure that additional measures for components are taken which are us...

Page 32: ... internet under www wago com DOWNLOADS Documentation System Description Conformity Marking UL508 Korea Certification MSIP REM W43 DAM750 3 7 1 Ex Approvals The following Ex approvals have been granted to the basic version and all variants of 750 637 I O modules TÜV 07 ATEX 554086 X I M2 Ex d I Mb II 3 G Ex nA IIC T4 Gc II 3 D Ex tc IIIC T135 C Dc IECEx TUN 09 0001 X Ex d I Mb Ex nA IIC T4 Gc Ex tc...

Page 33: ...ted to the basic version of 750 637 I O modules ABS American Bureau of Shipping Federal Maritime and Hydrographic Agency BV Bureau Veritas DNV Det Norske Veritas Class B GL Germanischer Lloyd Cat A B C D EMC 1 KR Korean Register of Shipping LR Lloyd s Register Env 1 2 3 4 NKK Nippon Kaiji Kyokai PRS Polski Rejestr Statków RINA Registro Italiano Navale ...

Page 34: ... the following requirements on emission and immunity of interference EMC CE Immunity to interference EN 61000 6 2 EMC CE Emission of interference EN 61000 6 4 The I O modules 750 637 meet the following requirements on emission and immunity of interference EMC marine applications Immunity to interference acc to DNV GL EMC marine applications Emission of interference acc to DNV GL ...

Page 35: ...nd output process image via 2 logical channels The set values to be set are stored in 4 output bytes D0 D3 The read in process data is stored in the 4 input bytes D0 D3 Two control bytes C0 C1 and two status bytes S0 S1 control the data flow and are used to select the set and actual values Table 25 Process Image Process Image Input Output S0 Status byte S0 C0 Control byte C0 D0 Process data byte 0...

Page 36: ...ount value 0 1 Latch value 1 0 Rate in increments per milliseconds 1 1 Set value With Version 750 637 000 004 the following process data is displayed as a function of bit 0 in control byte C1 see Table MapPZD Verstion 750 637 000 004 Counter value Latch value The setting is mirrored in bit 0 of status byte S1 Table 27 MapPZD Version 750 637 000 004 MapPZD Control Byte C1 Status Byte S1 Bit 0 Bit 0...

Page 37: ...T_EXT_VAL Ack Bit for EN LAT_EXT C0 1 Latch Mode This bit is set on a positive edge at the Latch input Reset is carried out when EN_LAT_EXT is reset Preload Mode This bit is set on a positive edge at the Latch input Reset is carried out when EN_LAT_EXT is reset CNT SET_ACK Ack Bit for CNT_SET C0 2 Reset is carried out when CNT_SET 0 UNDERFLOW UNDERFLOW 1 On counter underflow from 0x00000000 to 0xf...

Page 38: ...Reset is carried out when CNT_SET 0 Enable_Cam_Ack Ack Bit for Enable_Cam C1 6 The command has been executed by the I O module when the ack bit and the request bit are identical The cam outputs have the desired state OUF Combined Overflow Underflow Status Bit Underflow function counter clockwise rotation 1 On counter underflow from 0x00000000 to 0xffffffff 0 When counter value is then 0xAAAAAAAA O...

Page 39: ...S1 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0 0 N2_F1 N1_F1 N2_F2 N1_F2 Set Cam_ Ack MapPZD MapPZD Coding of Process Data Set Cam_Ack Collective and Ack Bit for All Cam Set Requests Bit is set when One or more request bists 2 3 4 or 5 are set by the control byte N1_F2 Cam 1 Window 2 Bit is set when Lower comparison value N1F2_LO counter value upper comparison value N1F2_HI and cams enabled ...

Page 40: ...N_LAT_EXT The external Latch input is enabled Capture Mode On a positive edge at the LATCH input the counter value is transferred to the Latch register Preload Mode On a positive edge at the LATCH input the counter value is transferred to the Latch register The set value is loaded to the counter Confirmation is canceled on a negative edge at EN_LAT_EXT CNT_SET On a positive edge the counter is ini...

Page 41: ...ge at the LATCH input the counter value is transferred to the Latch register Preload Mode On a positive edge at the LATCH input the counter value is transferred to the Latch register The set value is loaded to the counter Confirmation is canceled on a negative edge at EN_LAT_EXT CNT_SET On a positive edge the counter is initialized to the set value INV_DIR INV_DIR Bit 0 The counting direction is p...

Page 42: ...ted SetCam1 Apply Cam Output 1 Positive edge Set value applied as lower comparison value N1_LO for cam output 1 N1 Negative edge Set value applied as the upper comparison value N1_HI for cam output 1 N1 SetCam2 Apply Cam Output 2 Positive edge Set value applied as lower comparison value N2_LO for cam output 2 N2 Negative edge Set value applied as the upper comparison value N2_HI for cam output 2 N...

Page 43: ...the upper comparison value N1F2_HI for cam output 1 N1 window F2 SetNocke2_F2 Apply Cam Output 2 Window 2 Positive edge Set value applied as lower comparison value N2F2_LO for cam output 2 N2 window F2 Negative edge Set value applied as the upper comparison value N2F2_HI for cam output 2 N2 window F2 SetCam1_F1 Apply Cam Output 1 Window 1 Positive edge Set value applied as lower comparison value N...

Page 44: ...on of rotation Table 36 Function Description Inputs Input Description I O Module Function A A B B Quadrature inputs RS 422 750 637 Track signal A or B of the incremental encoder 750 637 000 003 Quadrature inputs 24 V differential 750 637 000 001 A B Quadrature inputs 24 V single ended 750 637 000 004 750 637 000 002 C C Initial point input RS 422 750 637 Track signal for the index channel of the i...

Page 45: ...REF is present 750 637 000 001 750 637 000 002 750 637 000 003 REF input 750 637 000 004 The counter is set to 0 on a positive edge for REF Shield Shielding 750 637 Connection for shielding of the encoder line The shield screen is directly connected to the DIN rail 750 637 000 001 750 637 000 002 750 637 000 003 750 637 000 004 24 V Supply voltage 750 637 24 V supply voltage for the I O module 750...

Page 46: ...4 Only Output Function N1 N2 Cam output 24 V 0 5 A 0 Counter value outside the set window 1 Counter value within the set window Cams can be enabled and disabled globally This guarantees that no unexpected switching states occur during ongoing operation due to changes of the windows All cam outputs are reset output votlage 0 V on loss of field voltage When voltage is restored all cams remain reset ...

Page 47: ...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 electrostatic d...

Page 48: ...blade contacts cannot be linked to I O modules with fewer power contacts Insert I O modules only from the proper direction All I O modules feature grooves for power jumper contacts 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 confi...

Page 49: ... carrier rail Figure 11 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 crooked or askew Once the I O module has snapped into place the electrical connections for the data contacts and power contacts if any to the head station or to the preceding and if applicable following I O module ...

Page 50: ... Manual Version 1 6 1 Public 6 2 2 Removing the I O Module 1 Remove the I O module from the assembly by pulling the release tab Figure 12 Removing the I O Module Example Electrical connections for data or power jumper contacts are disconnected when removing the I O module ...

Page 51: ... connection is appropriate for solid stranded and finely stranded conductors Only connect one conductor to each CAGE CLAMP Only one conductor may be connected 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 termi...

Page 52: ...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 appli...

Page 53: ...50 637 Incremental Encoder Interfaces Manual Version 1 6 1 Public 8 1 Marking Configuration Examples 8 1 1 Marking for Europe According to ATEX and IECEx Figure 14 Marking Example per ATEX and IECEx Figure 15 Text Detail Marking Example per ATEX and IECEx ...

Page 54: ... 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 group All ...

Page 55: ...ronments 55 750 637 Incremental Encoder Interfaces Manual Version 1 6 1 Public Figure 16 Marking Example of an Approved I O Module Ex i per ATEX and IECEx Figure 17 Text Detail Marking Example of an Approved I O Module Ex i per ATEX and IECEx ...

Page 56: ...rature 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 Electrical de...

Page 57: ...tates of America NEC and Canada CEC Figure 18 Marking Example According to NEC Figure 19 Text Detail Marking Example According to NEC 500 Table 41 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 58: ...nt 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 21 Text Detail Marking Example for Approved I O Module Ex i According to NEC 506 Table 43 Description of Marking Example for Approved I O Module Ex i According to NEC 506 Marking Description CI I Explosion protection group Zn 2 Area ...

Page 59: ...k 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 Associated...

Page 60: ...ng 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 40 C Ta...

Page 61: ...n 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 40 due to...

Page 62: ...cted 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 Additional In...

Page 63: ...Example 49 Figure 11 Snap the I O Module into Place Example 49 Figure 12 Removing the I O Module Example 50 Figure 13 Connecting a Conductor to a CAGE CLAMP 51 Figure 14 Marking Example per ATEX and IECEx 53 Figure 15 Text Detail Marking Example per ATEX and IECEx 53 Figure 16 Marking Example of an Approved I O Module Ex i per ATEX and IECEx 55 Figure 17 Text Detail Marking Example of an Approved ...

Page 64: ...l Data Communication 27 Table 17 Technical Data Inputs Outputs 28 Table 18 Technical Data Digital Outputs N1 N2 28 Table 19 Technical Data Digital Inputs Latch Gate Ref Versions 750 637 750 637 000 003 750 637 000 001 28 Table 20 Technical Data Quadrature Inputs A A B B C C Versions 750 637 and 750 637 000 003 29 Table 21 Technical Data Quadrature Inputs A B C Versions 750 637 000 002 and 750 637 ...

Page 65: ...ing Example per ATEX and IECEx 54 Table 40 Description of the Marking Example of an Approved I O Module Ex i per ATEX and IECEx 56 Table 41 Description of Marking Example According to NEC 500 57 Table 42 Description of Marking Example for Approved I O Module Ex i According to NEC 505 58 Table 43 Description of Marking Example for Approved I O Module Ex i According to NEC 506 58 Table 44 Descriptio...

Page 66: ...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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