WAGO I/O-SYSTEM 750 User manual

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WAGO-I/O-SYSTEM 750
Manual
750-493(/xxx-xxx)
3-Phase Power Measurem
ent Module
Version 1.2.0
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2 WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
© 2015 by WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [email protected]om
Web: http://www.wago.com
Technical Support
Phone: [phone] – 5 55
Fax: [phone] – 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]om
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 List e f ür Te xt mar keE i nb a nd_ v orn e ===

WAGO-I/O-SYSTEM 750 Table of Contents 3
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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Table of Contents
1Notes about this Documentation................................................................. 6
1.1 Validity of this Documentation................................................................. 6
1.2 Revision History........................................................................................ 6
1.3 Copyright................................................................................................... 7
1.4 Symbols..................................................................................................... 8
1.5 Number Notation..................................................................................... 10
1.6 Font Conventions .................................................................................... 10
2Important Notes ......................................................................................... 11
2.1 Legal Bases ............................................................................................. 11
2.1.1 Subject to Changes ............................................................................. 11
2.1.2 Personnel Qualifications..................................................................... 11
2.1.3 Use of the WAGO-I/O-SYSTEM 750 in Compliance with Underlying
Provisions ........................................................................................... 11
2.1.4 Technical Condition of Specified Devices......................................... 12
2.2 Safety Advice (Precautions).................................................................... 13
3Device Description ..................................................................................... 15
3.1 View ........................................................................................................ 16
3.2 Connectors............................................................................................... 17
3.2.1 Data Contacts/Internal Bus................................................................. 17
3.2.2 Power Jumper Contacts/Field Supply ................................................ 17
3.2.3 CAGE CLAMP®Connectors ............................................................. 18
3.3 Display Elements .................................................................................... 19
3.4 Operating Elements................................................................................. 19
3.5 Schematic Diagram ................................................................................. 20
3.6 Technical Data ........................................................................................ 21
3.6.1 Dimensions and Weight ..................................................................... 21
3.6.2 Voltage Supply................................................................................... 21
3.6.3 Measuring Inputs................................................................................ 21
3.6.4 Measuring Signal Processing ............................................................. 22
3.6.5 Internal Bus Communication.............................................................. 22
3.6.6 Connection Type ................................................................................ 22
3.6.7 Climatic Environmental Conditions................................................... 23
3.7 Approvals ................................................................................................ 24
3.8 Standards and Guidelines........................................................................ 25
4Process Image ............................................................................................. 26
4.1 Input and Output Data............................................................................. 26
4.2 Simple Process Image ............................................................................. 27
4.3 Flexible Process Image ........................................................................... 28
4.4 Control and Status Bytes......................................................................... 29
5Function Description ................................................................................. 35
5.1 Measuring Principle ................................................................................ 35
5.2 Measured Values and Measured Value Calculation ............................... 35
5.3 Representation of the Measured Values in the Process Image (PI) ........ 39
5.4 Measuring Errors and Accuracy.............................................................. 46

4 Table of Contents WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
6Mounting..................................................................................................... 47
6.1 Mounting Sequence................................................................................. 47
6.2 Inserting and Removing Devices ............................................................ 48
6.2.1 Inserting the I/O Module .................................................................... 48
6.2.2 Removing the I/O Module.................................................................. 49
7Connect Devices ......................................................................................... 50
7.1 Connecting a Conductor to the CAGE CLAMP®................................... 50
7.2 Voltage Measurement ............................................................................. 51
7.3 Current Measurement.............................................................................. 52
7.3.1 Current Measurement on a Motor ...................................................... 52
7.3.2 Current Transformers ......................................................................... 53
7.3.2.1 Accuracy........................................................................................ 53
7.3.2.2 Types of Current ............................................................................ 53
7.3.2.3 Overcurrent Limiting Factor FS .................................................... 53
7.3.2.4 Protection against Shock Hazard Voltages.................................... 54
7.3.3 Additional Measuring Instruments in the Current Path...................... 55
7.4 Power Measurement................................................................................ 56
7.4.1 Power Measurement on a Machine .................................................... 56
7.4.2 56
8Commissioning ........................................................................................... 57
8.1 Configuration with WAGO-I/O-CHECK ............................................... 58
8.1.1 "Application" Tab............................................................................... 61
8.1.2 "Phase L1”, “Phase L2”, “Phase L3” Tabs ........................................ 62
8.1.3 "I/O Module" Tab............................................................................... 64
8.1.4 "Energy" Tab ...................................................................................... 65
8.1.5 "Factory Settings" Tab ....................................................................... 66
8.1.6 Register Assignment........................................................................... 67
8.2 Displaying the Measured Values via WAGO-I/O-CHECK.................... 70
9Diagnostics.................................................................................................. 77
10 Appendix..................................................................................................... 78
10.1 CSV Data File “Snapshot”...................................................................... 78
10.2 CSV Data File “Measurement Recording” ............................................. 80
11 Use in Hazardous Environments .............................................................. 81
11.1 Marking Configuration Examples........................................................... 82
11.1.1 Marking for Europe According to ATEX and IEC-Ex ...................... 82
11.1.2 Marking for America According to NEC 500.................................... 87
11.2 Installation Regulations........................................................................... 88
11.2.1 Special Conditions for Safe Use (ATEX Certificate TÜV 07 ATEX
554086 X)........................................................................................... 89
11.2.2 Special Conditions for Safe Use (ATEX Certificate TÜV 12 ATEX
106032 X)........................................................................................... 90
11.2.3 Special Conditions for Safe Use (IEC-Ex Certificate TUN 09.0001 X)91
11.2.4 Special Conditions for Safe Use (IEC-Ex Certificate IECEx TUN
12.0039 X).......................................................................................... 92
11.2.5 Special Conditions for Safe Use According to ANSI/ISA 12.12.01.. 93
List of Figures ...................................................................................................... 94

WAGO-I/O-SYSTEM 750 Table of Contents 5
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
List of Tables........................................................................................................ 95
=== En de der Lis te für Te xtmar ke Verzei ch nis_vor ne ===

6 Notes about this Documentation WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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1 Notes about this Documentation
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Always retain this documentation!
This documentation is part of the product. Therefore, retain the documentation
during the entire service life of the product. Pass on the documentation to any
subsequent user. In addition, ensure that any supplement to this documentation is
included, if necessary.
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1.1 Validity of this Documentation
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This documentation is only applicable to the I/O module 750-493 (3-Phase Power
Measurement Module) and the variants listed in the table below.
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Table 1: Variants
Item Number
Description
750-493
3-Phase Power Measurement Module 1 A
750-493/000-001
3-Phase Power Measurement Module 5 A
750-493/025-000
3-Phase Power Measurement Module 1 A,
Operating temperature -20 °C … +60 °C
750-493/025-001
3-Phase Power Measurement Module 5A,
Operating temperature -20 °C … +60 °C
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Documentation Validity for Variants
Unless otherwise indicated, the information given in this documentation applies to
listed variants.
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The I/O module 750-493 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 Revision History
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WAGO-I/O-SYSTEM 750 Notes about this Documentation 7
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Table 2: Revision History
Document
Version
Device Version
Description of Change
Hardware
Software
1.0.1
‒
‒
First issue
1.1.0
≥ 20
≥ 01
Total revision with new layout
1.2.0
≥ 20
≥ 01
Variants
750-493
/025-000 and
750-493
/025-
001 for extended temperature range added.
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1.3 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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8 Notes about this Documentation WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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1.4 Symbols
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Personal Injury!
Indicates a high-risk, imminently hazardous situation which, if not avoided, will
result in death or serious injury.
Pos: 16 .4.2 /Al le Seri en (All gemei ne Mod ule)/ Wichti ge Erlä uteru ngen/ Sich erheit s- und sons tig e H in wei s e/ Gef ahr /G ef ahr : _War nu ng vor Perso n ens ch äde n durc h elektr is c hen Stro m _ - Erläuterung@ 13\mod_1343309694914 _21.d ocx @ 10103 0@ @ 1
Personal Injury Caused by Electric Current!
Indicates a high-risk, imminently hazardous situation which, if not avoided, will
result in death or serious injury.
Pos: 16 .4.3 /Al le Seri en (All gemei ne Mod ule)/ Wichti ge Erlä uteru ngen/ S ich er h eits - u nd sons tig e H in wei s e/ War n ung/ W arn ung : _War nu ng vor Per so nens c häd e n all g em ei n_ - Erläuterung @ 13\mod_1343309877041_21.docx@ 101035@ @ 1
Personal Injury!
Indicates a moderate-risk, potentially hazardous situation which, if not avoided,
could result in death or serious injury.
Pos: 16 .4.4 /Al le Seri en (All gemei ne Mod ule)/ Wichti ge Erlä uteru ngen/ Sich erheit s- undsons t ig e H in wei s e/ Vorsi c ht /V ors ich t: _War nu ng vor Pers on e nsc hä den allg e mei n_ - Erläuterung@ 13\mod_1343310028762_21.docx@ 101038@ @ 1
Personal Injury!
Indicates a low-risk, potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
Pos: 16 .4.5 /Al le Seri en (All gemei ne Mod ule)/ Wichti ge Erlä uteru ngen/ Sich erheit s- undsonstigeHinweise/Achtung/Achtung:_Warnung vorSachschädenallgemein_- Erläuterung@ 13\mod_1343310134623_21.docx@ 101041@ @ 1
Damage to Property!
Indicates a potentially hazardous situation which, if not avoided, may result in
damage to property.
Pos: 16 .4.6 /Al le Seri en (All gemei ne Mod ule)/ Wichti ge Erlä uteru ngen/ Sich erheit s- undsonstigeHinweise/Achtung/Achtung:_Warnung vorSachschädendurchelektrostatischeAufladung_- Erläuterung@ 13\mod_1343310227702_21.docx@ 101044@ @ 1
Damage to Property Caused by Electrostatic Discharge (ESD)!
Indicates a potentially hazardous situation which, if not avoided, may result in
damage to property.
Pos: 16 .4.7 /Al le Seri en (All gemei ne Mod ule)/ Wichti ge Erlä uteru ngen/ Sich erheit s- undsonstige Hinweis e/Hinweis/Hinweis:_Wichtiger Hi nweis allgemein_ - Erläuterung@ 13\mod_1343310326906_21.docx@ 101047@ @ 1
Important Note!
Indicates a potential malfunction which, if not avoided, however, will not result in
damage to property.
Pos: 16 .4.8 /Al le Seri en (All gemei ne Mod ule)/ Wichti ge Erlä uteru ngen/ Sich erheit s- und sons tig e Hinw eis e/ I nf or ma tio n/I nf or matio n: _Wei ter e Infor matio n allge mei n_ - Erl äu ter ung @ 13\mod_1343310439814_21.docx@ 101051@ @ 1

WAGO-I/O-SYSTEM 750 Notes about this Documentation 9
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Additional Information:
Refers to additional information which is not an integral part of this
documentation (e.g., the Internet).
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10 Notes about this Documentation WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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1.5 Number Notation
Table 3: 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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1.6 Font Conventions
Table 4: Font Conventions
Font Type
Indicates
italic
Names of 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.: 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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WAGO-I/O-SYSTEM 750 Important Notes 11
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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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 WAGO-I/O-SYSTEM 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 WAGO-I/O-SYSTEM 750 in Compliance with
Underlying Provisions
Fieldbus couplers, fieldbus 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 programmable
controllers, the signals can also be (pre-) processed.
The devices 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 devices in wet and dusty
environments is prohibited.
Operating the WAGO-I/O-SYSTEM 750 devices 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 “Device Description” > “Standards and Guidelines” in the manual
for the used fieldbus coupler/controller.

12 Important Notes WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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 devices 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 devices.
Please send your request for modified and new hardware or software
configurations directly to WAGO Kontakttechnik GmbH & Co. KG.
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WAGO-I/O-SYSTEM 750 Important Notes 13
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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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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Install protection against electric shock!
All wiring for the measurement system shall be provided with protection against
shock hazard voltages along with the corresponding safety signs!
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Do not work on devices 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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Install the device 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.
Pos: 19.1 1. 3 /Alle Ser ie n (Allg e mei n e D okume nt e) (Allg e m ein e Modul e)/Wic ht ig e Erlä uter ungen /Sic herhei ts hi n wei se /G ef ahr /Gefahr : Unfal l v erh üt ung s v ors c hri ft en beachten!@ 6\mod_1260180657000_21.docx@ 46735@ @ 1
Pos: 19.1 1. 4 /Alle Ser ie n (Allg e mei n e D okume nt e) (Allg e m ein e Modul e)/Wic ht ig e Erlä uter ungen /Sic herhei ts hi n wei se /G ef ahr /Gefahr : Auf normg erecht e n Ansc hlu ss ac ht en! @ 6\mod_1260180753479_21.docx@ 46739@ @ 1
Pos: 19.1 2 /Ser ie 750 ( WAGO-I/ O-SYSTEM )/ Wichti g e Erl äut erung en /Sic her hei ts- un d s onstig e Hin wei se /Ac ht u ng /Ac htung: Kein da uer ha ft er Ei nga ng ss tr om über 1A bz w.5A 75 0-0493/0494/Achtung: KeinEingangsstromüber1A bzw.5A,750-0493/0494/0495@ 15\mod_1366120670473_21.docx@ 117163@ @ 1
Note the max. continuous measuring current of 1 A resp. 5 A!
The max. continuous measuring current of the module is 1 A resp. 5 A. If the
used current transformers allow greater secondary currents than 1 A resp. 5 A
install additional transformers with an appropriate transforming ratio!
Pos: 19.1 3. 1 /Alle Ser ie n (Allg e mei n e D okume nt e) (Allg e mei ne Mo dul e)/ Wi ch tig e Erlä uter u ng en/S ic h erh eit s hin wei se /Ac ht ung /Ac ht u ng : D efe kt e oder besc h ädig t e Gerät e austa usc h en! @ 6 \mod_1260180857358_21.docx @ 46743@ @ 1
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.
Pos: 19.13.2/Alle Serien(AllgemeineDokumente)(AllgemeineModule)/WichtigeErläuterungen/Sicherheitshinweise/Achtung/Achtung:Geräte vor kri echen den und is olier enden S toff en schüt zen! @ 6\mod_1260181036216_21.docx@ 46747@ @ 1

14 Important Notes WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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.
Pos: 19.1 3. 3 /Alle Ser ie n (Allg e mei n e D okume nt e) (Allg e m ein e Modul e)/Wic ht ig e Erlä uter ungen /Sic herhei ts hi n wei se /Ac ht u ng /Ac ht u ng : Reini g ung nur mit zul äss ig e n M ateri ali e n! @ 6\mod_1260181203293_21.docx@ 46751@ @ 1
Clean only with permitted materials!
Clean soiled contacts using oil-free compressed air or with ethyl alcohol and
leather cloths.
Pos: 19.1 3. 4 /Alle Ser ie n (Allg e mei n e D okume nt e) (Allg e m ein e Modul e)/Wic ht ig e Erlä uter ungen /Sic herhei ts hi n wei se /Ac ht u ng /Ac ht u ng : Kei n K o nt a kts pra y verw e nd en! @ 6\mod_1260181290808_21.docx@ 46755@ @ 1
Do not use any contact spray!
Do not use any contact spray. The spray may impair contact area functionality in
connection with contamination.
Pos: 19.1 3. 5 /Alle Ser ie n (Allg e mei n e D okume nt e) (Allg e m ein e Modul e)/Wic ht ig e Erlä uter ungen /Sic herhei ts hi n wei se /Ac ht u ng /Ac ht u ng : Verp ol ung ver meiden! @ 6\mod_1260184045744_21.docx@ 46767@ @ 1
Do not reverse the polarity of connection lines!
Avoid reverse polarity of data and power supply lines, as this may damage the
devices involved.
Pos: 19.1 3. 6 /Alle Ser ie n (Allg e mei n e D okume nt e) (Allg e m ein e Modul e)/Wic ht ig e Erlä uter ungen /Sic herhei ts hi n wei se /Ac ht u ng /Ac ht u ng : Ele ktr ost ati sc h e Entl a dung v ermeid en! @ 6\mod_1260181364729_21.docx@ 46759@ @ 1
Avoid electrostatic discharge!
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.
Pos: 20 /Doku me nt ati o n allg emei n/Glie der ungsel em e nte /---Sei t e nwe chs el --- @ 3\mod_1221108045078_0.docx@ 21810 @ @ 1

WAGO-I/O-SYSTEM 750 Device Description 15
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Pos: 21 /Alle Seri en (All g e mei n e M o d ule) /Ü b er schr i f te n f ür all e Seri e n/G er ät eb es c hrei b u ng/ G erätebeschreibung- Über sc hr ift 1 @ 3\mod_1233756084656_21.docx@ 27096@ 1 @ 1
3 Device Description
Pos: 22 /Serie 75 0 (WAGO -I/ O-SYSTEM) /G er äteb esc hr ei bung /Ei nlei t ung /A nal ogei ng ang s klem men /G erä te bes chr eib ung - Ei nlei t u ng 750-049 3 @ 13\mod_1346315482161_21.docx@ 102130@ @ 1
The 3-phase power measurement module (also called I/O module) measures the
electrical data in a 3-phase supply network.
The voltages of the three phases are measured via network connection to L1, L2,
L3 and N. The currents are fed to IL1, IL2, IL3 and IN via current transformers.
The μC unit of the I/O module transmits the RMS (root mean square) values into
the process image. Therefore, no high computing power is required from the
controller. For each phase, the active power (P) and the energy consumption (W)
are calculated by the I/O module using the root mean square values of all
measured voltages (V) and currents (I).
For example, both the apparent power (S) and phase shift angle (phi) can easily be
derived from these values.
Thus, the I/O module provides a comprehensive network analysis via the fieldbus.
By means of values such as voltage, current, active and apparent power
consumption or load condition, the operator can regulate the supply to a drive or
machine in the best possible way and protect the installation from damage or
failure.
The I/O modules 750-493 and 750-493/025-000 measure currents up to 1 A and
the modules 750-493/000-001 and 750-493/025-001 measure up to 5 A.
Pos: 23 /Doku me nt ati o n allg emei n/Glie der ungsel em e nte /---Sei t e nwe chs el --- @ 3\mod_1221108045078_0.docx@ 21810 @ @ 1

16 Device Description WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Pos: 24 /Al l e Seri en ( All ge mei ne Mod ule) /Ü ber schr if te n f ür alle Seri en/ Ger äte b esc hrei bu ng/ Ans ic ht - Ü b er sc hri f t 2@ 4\mod_1240984217343_21.docx@ 31958 @ 2@ 1
3.1 View
Pos: 25 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ätebesc hreibu ng /A nsi c ht /A nal ogei nga ng s kl e mm en/ A nsi ch t 750-0493 - Ab b. @ 13\mod_1346331472304_21.docx@ 102153@ @ 1
Figure 1: View
Pos: 26 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ät eb esc hrei bung/A nsi c ht/ Ans ic ht Cag eCl a mp® _Leg ende mit LEDs_ oh n e Leistu ng s kont ak te @ 1 6\mod_1371816091053_21.docx @ 124052@ @ 1
Table 5: 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”
Pos: 27 /Doku me nt ati o n allg emei n/Glie der ungsel em e nte /---Sei t e nwe chs el --- @ 3\mod_1221108045078_0.docx@ 21810 @ @ 1

WAGO-I/O-SYSTEM 750 Device Description 17
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Pos: 28 /Al l e Seri en ( All ge mei ne Mod ule) /Ü ber schr if te n f ür alle Seri en/ Gerätebeschreibung/Anschlüsse-Ü b ersc hr if t 2 @ 4\mod_1240984262656_21.docx@ 31961@ 2 @ 1
3.2 Connectors
Pos: 29 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ät eb es c hrei bung/A nsc hlüss e/D at en k ont ak t e/Kl e m me nbu s - Über sc hr ift 3 @ 6\mod_1256294684083_21.docx@ 43660@ 3 @ 1
3.2.1 Data Contacts/Internal Bus
Pos:30.1/Serie750(WAGO-I/O-SY ST EM ) / Ger ät e bes c hr ei bu ng /A ns c hl üsse/Da te n k ont a kt e -F el dbu s kop pl er/-c on t rol l er , Abbi ld ung u nd Besc hr ei bung @ 3\mod_1231771259187_21.docx@ 26002@ @ 1
Communication between the fieldbus coupler/controller and the I/O modules as
well as the system supply of the I/O 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 2: Data Contacts
Pos:30.2/Serie750(WAGO-I/O-SY ST EM )/ Wi c hti ge Erl äut er u ng e n/ Sic her h eit s- und sonstigeHinweise/Achtung/Achtung:Busklemmennichtauf Gol df e der k ont ak t e l eg en! @ 7\mod_1266318463636_21.docx@ 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!
Pos:30.3/Serie750(WAGO-I/O-SY ST EM )/ Wi c hti ge Erl äut er u ng e n/ Sic her h eit s- und sonstigeHinweise/Achtung/Achtung:ESD- A ufg ute E rdung der U mgebu ng achten!@ 7\mod_1266318538667_21.docx@ 50708@ @ 1
Ensure that the environment is well grounded!
The devices are equipped with electronic components that may be destroyed by
electrostatic discharge. When handling the devices, ensure that the environment
(persons, workplace and packing) is well grounded. Avoid touching conductive
components, e.g. data contacts.
Pos: 31 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ät eb es c hrei bung/A nsc hlüss e/L eis t u ngs kontakt e/F el dversor g u ng -Ü b ersc hr if t 3 @ 6\mod_1256294692864_21.docx@ 43664 @ 3 @ 1
3.2.2 Power Jumper Contacts/Field Supply
Pos: 32 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ät eb es c hrei bung/A nsc hlüss e/L eis t u ngs kontakt e nic ht vorha nd e n @ 8 \mod_1281073936319_21.docx@ 62530@ @ 1
The I/O module 750-493 has no power jumper contacts.
Pos: 33 /Doku me nt ati o n allg emei n/Glie der ungsel em e nte /---Sei t e nwe chs el --- @ 3\mod_1221108045078_0.docx@ 21810 @ @ 1

18 Device Description WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Pos: 34 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ätebesc hreibu ng /A nsc hlüss e/C A GE CLAM P-An sc hl üss e -Ü b er sc hri f t 3 @ 6\mod_1256296337770_21.docx@ 43674 @3 @ 1
3.2.3 CAGE CLAMP®Connectors
Pos: 35 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ät eb esc hrei bung/A nsc hl üs s e/A nal ogei ngang s klem men /A nsc hl ü sse 75 0-049 3,-0494CAGECLAMP@ 14\mod_1363951572599_21.docx@ 115752@ @ 1
8 CAGE CLAMP® connectors make up the measuring inputs. The 3-phase supply
network and the loads are clamped here. See also section “Connect Devices“.
Two connectors each form the three measuring channels:
•L1 and IL1: voltage and current of phase L1
•L2 and IL2: voltage and current of phase L2
•L3 and IL3: voltage and current of phase L3
Figure 3: CAGE CLAMP®Connectors
Table 6: Legend for Figure “CAGE CLAMP®Connectors”
Channel
Designation
Connector
Function
1
L1
1
Voltage L1
IL1
5
Current L1
2
L2
2
Voltage L2
IL2
6
Current L2
3
L3
3
Voltage L3
IL3
7
Current L3
−
N 4
Neutral wire for
voltage measurement
IN 8
Neutral wire for
current measurement
Pos: 36 /Doku me nt ati o n allg emei n/Glie der ungsel em e nte /---Sei t e nwe chs el --- @ 3\mod_1221108045078_0.docx@ 21810 @ @ 1

WAGO-I/O-SYSTEM 750 Device Description 19
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Pos: 37 /Al l e Seri en ( All ge mei ne Mod ule) /Ü ber schr if te n f ür alle Seri en/ Ger äte b esc hrei bu ng/ Anz ei geel ement e - Ü ber sc hr ift 2 @4 \mod_1240984390875_21.docx@31964@ 2 @ 1
3.3 Display Elements
Pos: 38 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ätebesc hreibu ng /A nz ei g e ele m en te /A nal og ei ngang s kle m men / A nz eig eel ement e 750-0493@ 13\mod_1348655994627_21.docx@ 103538@ @ 1
8 LEDs A … H are used to indicate the operating status and possible errors.
The meaning of these indications is listed in section „Diagnostics“.
Figure 4: LED-indicators
Pos: 39 /Al l e Seri en ( All ge mei ne Mod ule) /Ü ber schr if te n f ür alle Seri en/ Ger äte b esc hrei bu ng/ Be die nel eme nt e - Ü b ers chr if t 2 @ 4\mod_1239191655456_21.docx@ 30439 @ 2@ 1
3.4 Operating Elements
Pos: 40/Serie750 (WAGO-I/O-SYST EM) /Ger ätebes chr ei bung /B edi enel e m ente/ B edi enel em ent e Buskl em me 750-x xxx nicht vor ha nde n @ 4\mod_1236322031125_21.docx@ 28063@ @ 1
The I/O module 750-493 has no operating elements.
Pos: 41 / D oku me nt ati o n allge mei n/ G li eder ungsel e me nte /---Sei t e n wec hs el--- @ 3\mod_1221108045078_0.docx@21810 @ @ 1

20 Device Description WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
Pos: 42 /Al l e Seri en ( All ge mei ne Mod ule) /Ü ber schr if te n f ür alle Seri en/ Ger äte b esc hrei bu ng/ Sc he mati sch es Sch altbi l d - Ü ber sc hri ft 2 @ 4\mod_1240984441312_21.docx@ 31967@ 2 @ 1
3.5 Schematic Diagram
Pos: 43 /Serie 75 0 (WAGO -I/ O-SYSTEM) / Ger ät eb esc hrei bung/S ch e mati sc he Sch altbi l der /A nal og ei ng ang s kle m men/ Sc he mati sc h es Schal t bil d 750-0 493 @ 13\mod_1348574311920_21.docx@ 103381@ @ 1
Figure 5: Schematic Diagram
Function Earth FE!
In order to get a function earth, the connections N and IN are connected to the
mounting rail via a 1 nF capacitor and a spring contact. If the rail is correctly
connected to PE, the immunity to interference is increased.