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38 Ground Fault Diagnostics

WAGO-I/O-SYSTEM 750

750-626/020-002 Power Supply Filter 24 VDC HI GF

Manual

Version 1.0.0

Figure 17: WAGO-I/O-

CHECK

– Ground Fault Diagnostics Dialog, Main Alarm 0V

Disable:

If ground fault diagnostics is disabled, the internal test circuit is separated from

the ground potential with high resistance.

1. Disable ground fault diagnostics by unselecting the checkbox for Ground

Fault Diagnostics.

Figure 18: WAGO-I/O-

CHECK

– Disabling Ground Fault Diagnostics Dialog

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Summary of Contents for 750-626/020-002

Page 1: ...Manual WAGO I O SYSTEM 750 750 626 020 002 Power Supply Filter 24 VDC HI GF Power Supply Filter Surge 24 VDC Higher Isolation Ground Fault Diagnostics Version 1 0 0 ...

Page 2: ... 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 companies use...

Page 3: ...fety Advice Precautions 12 3 Device Description 15 3 1 View 17 3 2 Connectors 18 3 2 1 Data Contacts Local Bus 18 3 2 2 Power Jumper Contacts Field Supply 19 3 2 3 CAGE CLAMP Connectors 20 3 3 Display Elements 21 3 4 Operating Elements 21 3 5 Schematic Diagram 22 3 6 Technical Data 23 3 6 1 Device Data 23 3 6 2 Power Supply 23 3 6 3 Ground Fault Diagnostics 23 3 6 4 Communication 24 3 6 5 Connecti...

Page 4: ...arine Applications in Ex i 42 7 Use in Hazardous Environments 45 7 1 Marking Configuration Examples 46 7 1 1 Marking for Europe According to ATEX and IECEx 46 7 1 2 Marking for the United States of America NEC and Canada CEC 50 7 2 Installation Regulations 53 7 2 1 Special Notes Regarding Explosion Protection 53 7 2 2 Special Notes Regarding ANSI ISA Ex 55 List of Figures 56 List of Tables 57 ...

Page 5: ...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 electrical isolation system power a...

Page 6: ... 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 Elect...

Page 7: ...es about this Documentation 7 750 626 020 002 Power Supply Filter 24 VDC HI GF Manual Version 1 0 0 Additional Information Refers to additional information which is not an integral part of this documentation e g the Internet ...

Page 8: ...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 Enter...

Page 9: ...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 10: ...n 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 the operating instructions Improper use of the components Further details are given in the contractual agreements Please send you...

Page 11: ...ronic 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 5 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 12: ...eeded Offer adequate protection against contact Prevent fire from spreading outside of the enclosure 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 ...

Page 13: ...current values When configuring the system do not exceed the permissible maximum current value If there is a higher power requirement you must use an additional supply module to provide the field voltage Do not exceed the maximum total current for I O modules 5 VDC via data contacts The maximum permissible total current for internal system supply of the I O modules may not be exceeded The permissi...

Page 14: ...bove 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 data and...

Page 15: ...several of these feed segments which are supplied galvanically isolated from each other this module can locate the feed segment affected by the ground fault or limit the location of the ground fault Use only in ungrounded supply networks In principle ground fault diagnostics is only possible in ungrounded applications or supply networks Use a marine certified filter module For marine certified ope...

Page 16: ... 002 can be operated on the listed fieldbus couplers and controllers of the 750 series from the specified version Table 3 Compatibility List 750 626 020 002 Bus System Fieldbus Coupler Controller Item No Firmware Version PROFINET Fieldbus Coupler 750 375 07 750 377 07 PROFIBUS Fieldbus Coupler 750 333 20 Controller 750 833 19 ETHERNET Fieldbus Coupler 750 352 13 750 362 02 Controller 750 842 20 75...

Page 17: ...nd 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 18: ...devices are equipped with electronic components that may be destroyed by electrostatic discharge When handling the devices please ensure that environmental factors personnel work space and packaging are properly equalized Do not touch any conducting parts e g data contacts Do not exceed the maximum total current for I O modules 5 VDC via data contacts The maximum permissible total current for inte...

Page 19: ...g contact Potential feed in 0V Field for field supply Do not exceed maximum values via power contacts The maximum current that can flow through the power jumper contacts is 10 A The power jumper contacts can be damaged and the permissible operating temperature can be exceeded by higher current values When configuring the system do not exceed the permissible maximum current value If there is a high...

Page 20: ...CAGE CLAMP Connectors Designation Connector Function 24V System OUT 1 Output system supply 24 VDC filtered 0V System OUT 5 Output system supply 0 VDC filtered 24V Field IN 2 Input field supply 24 VDC 6 Input field supply 24 VDC 0V Field IN 3 Input field supply 0 VDC 7 Input field supply 0 VDC 24V System IN 4 Input system supply 24 VDC unfiltered 0V System IN 8 Input system supply 0 VDC unfiltered ...

Page 21: ...State Function A Status 24V System Off No 24 VDC operating voltage for system supply Green 24 VDC operating voltage for system supply C Status 24V Field Off No 24 VDC voltage supply via power jumper contacts Green 24 VDC voltage supply via power jumper contacts G Ground fault Off No ground fault detected Red Ground fault detected 3 4 Operating Elements The power supply filter 750 626 020 002 has n...

Page 22: ...22 Device Description WAGO I O SYSTEM 750 750 626 020 002 Power Supply Filter 24 VDC HI GF Manual Version 1 0 0 3 5 Schematic Diagram Figure 6 Schematic diagram ...

Page 23: ...ound diagnostics activated Supply voltage field 24 VDC SELV 25 30 power supply via CAGE CLAMP connection transmission via spring contact Current consumption field Typ 16 mA when a ground fault is detected Currentmax via power jumper contacts 10 A Current via system voltage 24 V max 1 5 A Out Isolation System 24 V Field 24 V 300 VDC limited by a transient protection device 3 6 3 Ground Fault Diagno...

Page 24: ...local bus 8 bit input 8 bit output 3 6 5 Connection Type Table 10 Technical Data Field Wiring Wire connection CAGE CLAMP Cross section 0 08 mm 2 5 mm AWG 28 14 Stripped lengths 8 mm 9 mm 0 33 in Table 11 Technical Data Power Jumper Contacts Power jumper contacts Spring contact self cleaning Table 12 Technical Data Data Contacts Data contacts Slide contact hard gold plated self cleaning ...

Page 25: ...tage category II Protection type IP20 Exposure to pollutants Per IEC 60068 2 42 and IEC 60068 2 43 Max contaminant concentration at relative humidity 75 SO2 25 ppm H2S 10 ppm Special conditions The components may not be used without additional measures at locations in which dust corrosive fumes gases or ionized radiation can occur The permissible temperature range of the connecting cable must be d...

Page 26: ...via the internet under www wago com DOWNLOADS Documentation System Description The following approval has been granted to 750 626 020 002 I O modules Conformity Marking The following approval is pending for the 750 626 020 002 I O module Ordinary Locations UL61010 2 201 The following ship approvals have been granted to 750 626 020 002 I O modules Federal Maritime and Hydrographic Agency DNV GL Tem...

Page 27: ...dules meet the following requirements on emission and immunity of interference EU EMC Directive 2014 30 EU EMC CE Emission of interference EN 61000 6 3 EMC CE Immunity to interference EN 61000 6 2 EMC CE Immunity to interference EN 61131 2 EMC marine applications Emission of interference acc to DNV GL EMC marine applications Immunity to interference acc to DNV GL ...

Page 28: ...with power contacts blade contacts cannot be linked to I O modules with fewer power contacts Risk of injury due to sharp edged blade contacts The blade contacts are sharp edged Handle the I O module carefully to prevent injury Do not touch the blade 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 mo...

Page 29: ...ition the I O module so that the tongue and groove joints to the fieldbus coupler or controller or to the previous or possibly subsequent I O module are engaged Figure 7 Insert I O Module Example 2 Press the I O module into the assembly until the I O module snaps into the carrier rail Figure 8 Snap the I O Module into Place Example With the I O module snapped in place the electrical connections fo...

Page 30: ...VDC HI GF Manual Version 1 0 0 4 2 2 Removing the I O Module 1 Remove the I O module from the assembly by pulling the release tab Figure 9 Removing the I O Module Example Electrical connections for data or power jumper contacts are disconnected when removing the I O module ...

Page 31: ... 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 connection ope...

Page 32: ...e ground fault diagnostics at the same time Enabling ground fault diagnostics at the same time influences the thresholds due to the parallel internal resistances of the modules Do not enable ground fault diagnostics for multiple modules or if there is not galvanic isolation between the feed segments The functional principle in detecting ground faults is based on evaluating the DC residual voltage ...

Page 33: ...ted in parallel because the internal resistance in the relevant supply network or feed segment changes due to the internal resistance of the test circuit The influence is greater the more filter modules with ground fault diagnostics in the relevant supply network or feed segment exist where a ground fault diagnostics was enabled Conversely however a ground fault monitor operating in parallel also ...

Page 34: ...ocess image The diagnostic messages may change during the test period VAL 1 in the input process image signals a valid ground fault test 6 1 Process Image Table 15 Input Process Image Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0V_MA 0V_PA 24V_MA 24V_PA not used PWR_DIAG not used VAL Table 16 Explanation of Input Process Image Bit Value Explanation VAL 0 Ground fault diagnostics disabled or fi...

Page 35: ...Ground fault diagnostics disabled The internal test circuit is separated from ground potential with high resistance 1 Ground fault diagnostics enabled Measuring circuit for ground fault diagnostics is switched on not used Not used 6 2 WAGO I O CHECK Information WAGO I O CHECK Compatibility The 750 626 020 002 filter module is supported by the WAGO I O CHECK commissioning tool version 3 19 2 02 or ...

Page 36: ...g Window The Field Voltage field indicates whether the field voltage is present Field voltage available Requirement for ground fault diagnostics Field supply not available Check the field supply 4 Start ground fault diagnostics by selecting the checkbox for Ground Fault Diagnostics Figure 14 WAGO I O CHECK Ground Fault Diagnostics Dialog Ground fault diagnostics starts ...

Page 37: ... diagnostics is indicated as follows In WAGO I O CHECK By the Diagnostics enabled message in the dialog In the input process image Bit VAL 1 The measuring circuit is switched on and the transient phase is completed The diagnostic messages may change during the test period Ground fault diagnostics are not saved on the device If a ground fault is detected against the 24V field or 0V field potential ...

Page 38: ...CK Ground Fault Diagnostics Dialog Main Alarm 0V Disable If ground fault diagnostics is disabled the internal test circuit is separated from the ground potential with high resistance 1 Disable ground fault diagnostics by unselecting the checkbox for Ground Fault Diagnostics Figure 18 WAGO I O CHECK Disabling Ground Fault Diagnostics Dialog ...

Page 39: ...s of the individual I O modules and in the 750 and 753 Series system manual Marine applications Class A All areas except bridge and open deck Class B All areas including bridge and open deck Applications with isolation monitoring High isolation HI versions of the filter modules are required for applications with isolation monitoring Table 19 High Isolation Filter Modules High Isolation Filter Modu...

Page 40: ...power jumper contacts or have only single power jumper contacts depending on the I O function As a result transferring the corresponding potential is interrupted If downstream I O modules require a power supply via the power jumper contact you must use a power supply module Observe the data sheets of the individual I O modules The following shows the power supply concept of a fieldbus node of the ...

Page 41: ...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 230 VAC DC with diagnostics with fuse holder 750 611 or Supply module 230 VAC DC without diagnostics with fuse holder 750 609 or Supply module 230 VAC DC without diagnostics without fuse holder 750 612 6 End module Table 22 E...

Page 42: ... shown with 750 624 xxx xxx for Field 2 Table 23 Legend for figure Power Supply Concept for Marine Applications in Ex i Class A shown with 750 624 xxx xxx for Field 2 No Explanation 1 Fieldbus Couplers Controllers 2 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 3 Supply module 24 VDC 750 602 or Supply module 24 VD...

Page 43: ...ly Concept for Marine Applications in Ex i Class B shown with 750 626 xxx xxx for Field 2 Table 25 Legend for figure Power Supply Concept for Marine Applications in Ex i Class B shown with 750 626 xxx xxx for Field 2 No Explanation 1 Fieldbus Couplers Controllers 2 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 0...

Page 44: ...I GF Manual Version 1 0 0 Table 26 Explanation of the Legend for figure Power Supply Concept for Marine Applications in Ex i Class B shown with 750 626 xxx xxx for Field 2 Explanation HI High Isolation filter for isolation monitored systems GF Ground Fault filter with ground fault diagnostics ...

Page 45: ...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 app...

Page 46: ... 002 Power Supply Filter 24 VDC HI GF Manual Version 1 0 0 7 1 Marking Configuration Examples 7 1 1 Marking for Europe According to ATEX and IECEx Figure 22 Marking Example According to ATEX and IECEx Figure 23 Text Detail Marking Example According to ATEX and IECEx ...

Page 47: ...C Explosion group of dust T135 C Max surface temperature of the enclosure without a dust layer Dc Equipment protection level EPL Mining I Equipment group Mining M2 Category High level of protection Ex Explosion protection mark d Type of protection Flameproof enclosure I Explosion group for electrical equipment for mines susceptible to firedamp Mb Equipment protection level EPL Gases II Equipment g...

Page 48: ...750 750 626 020 002 Power Supply Filter 24 VDC HI GF Manual Version 1 0 0 Figure 24 Marking Example for Approved Ex i I O Module According to ATEX and IECEx Figure 25 Text Detail Marking Example for Approved Ex i I O Module According to ATEX and IECEx ...

Page 49: ... dust layer Dc Equipment protection level EPL Mining I Equipment Group Mining M2 M1 Category High level of protection with electrical circuits which present a very high level of protection Ex Explosion protection mark d Type of protection Flameproof enclosure ia Ma Type of protection and equipment protection level EPL Associated apparatus with intrinsic safety electrical circuits I Explosion group...

Page 50: ...States of America NEC and Canada CEC Figure 26 Marking Example According to NEC Figure 27 Text Detail Marking Example According to NEC 500 Table 29 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 51: ...ent 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 29 Text Detail Marking Example for Approved Ex i I O Module According to NEC 506 Table 31 Description of Marking Example for Approved Ex i I O Modules According to NEC 506 Marking Description CI I Explosion protection group Zn 2 Are...

Page 52: ...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 Associa...

Page 53: ...ting 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 ...

Page 54: ...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 40 due t...

Page 55: ...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 Informatio...

Page 56: ...gure 18 WAGO I O CHECK Disabling Ground Fault Diagnostics Dialog 38 Figure 19 Power Supply Concept for Marine Applications Class A and B shown with 750 624 xxx xxx for Field 2 40 Figure 20 Power Supply Concept for Marine Applications in Ex i Class A shown with 750 624 xxx xxx for Field 2 42 Figure 21 Power Supply Concept for Marine Applications in Ex i Class B shown with 750 626 xxx xxx for Field ...

Page 57: ... Class A and B shown with 750 624 xxx xxx for Field 2 41 Table 22 Explanation of the Legend for Figure Power Supply Concept for Marine Applications Class A and B shown with 750 624 xxx xxx for Field 2 41 Table 23 Legend for figure Power Supply Concept for Marine Applications in Ex i Class A shown with 750 624 xxx xxx for Field 2 42 Table 24 Explanation of the Legend for figure Power Supply Concept...

Page 58: ...58 List of Tables WAGO I O SYSTEM 750 750 626 020 002 Power Supply Filter 24 VDC HI GF Manual Version 1 0 0 ...

Page 59: ...WAGO I O SYSTEM 750 59 750 626 020 002 Power Supply Filter 24 VDC HI GF Manual Version 1 0 0 ...

Page 60: ...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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