WAGO WAGO-I/O-SYSTEM 750 Series User manual

Brand: WAGO

Model: WAGO-I/O-SYSTEM 750 Series

Type: User manual

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Manual

WAGO-I/O-SYSTEM 750

3-Phase Power Measurement Module

750-495(/xxx-xxx)

Version 1.0.0

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2 WAGO-I/O-SYSTEM 750

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

WAGO Kontakttechnik GmbH & Co. KG

Hansastraße 27

D-32423 Minden

Phone: +49 (0) 571/8 87 – 0

Fax: +49 (0) 571/8 87 – 1 69

E-Mail: [email protected]

Web: http://www.wago.com

Technical Support

Phone: +49 (0) 571/8 87 – 5 55

Fax: +49 (0) 571/8 87 – 85 55

E-Mail: [email protected]

Every conceivable measure has been taken to ensure the accuracy and

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

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

documentation.

E-Mail: [email protected]

We wish to point out that the software and hardware terms as well as the

trademarks of companies used and/or mentioned in the present manual are

generally protected by trademark or patent.

=== Ende der Lis te f ür T e xtmar ke Ei nb and _vor ne = ==

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

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

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Table of Contents

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

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

1.2 Revision History ........................................................................................ 5

1.3 Copyright ................................................................................................... 5

1.4 Symbols ..................................................................................................... 6

1.5 Number Notation ....................................................................................... 7

1.6 Font Conventions ...................................................................................... 7

2 Important Notes ........................................................................................... 8

2.1 Legal Bases ............................................................................................... 8

2.1.1 Subject to Changes ............................................................................... 8

2.1.2 Personnel Qualifications ....................................................................... 8

2.1.3 Use of the 750 Series in Compliance with Underlying Provisions ...... 8

2.1.4 Technical Condition of Specified Devices ........................................... 9

2.2 Safety Advice (Precautions) ...................................................................... 9

3 Device Description ..................................................................................... 12

3.1 View ........................................................................................................ 13

3.2 Connectors ............................................................................................... 14

3.2.1 Data Contacts/Internal Bus ................................................................. 14

3.2.2 Power Jumper Contacts/Field Supply ................................................ 14

3.2.3 CAGE CLAMP

Connectors ............................................................. 15

3.3 Display Elements .................................................................................... 17

3.4 Operating Elements ................................................................................. 17

3.5 Schematic Diagram ................................................................................. 18

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 Measured Values ................................................................................ 22

3.6.5 Internal Bus Communication .............................................................. 23

3.6.6 Connection Type ................................................................................ 23

3.6.7 Climatic Environmental Conditions ................................................... 23

3.7 Approvals ................................................................................................ 24

3.8 Standards and Guidelines ........................................................................ 24

4 Function Description ................................................................................. 25

4.1 Measuring Principle ................................................................................ 25

4.2 Measured Values ..................................................................................... 25

4.3 Description of Measured Values ............................................................. 27

4.4 Measuring Errors and Accuracy .............................................................. 33

5 Process Image ............................................................................................. 36

5.1 Overview of Process Data ....................................................................... 36

5.2 Output Data ............................................................................................. 37

5.2.1 Definition of Control Words .............................................................. 37

5.2.2 Definition of Output Data Words ....................................................... 38

5.3 Input Data ................................................................................................ 39

5.3.1 Definition of Status Words ................................................................. 39

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

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

5.3.2 Definition of Input Data Words .......................................................... 42

5.4 Process Image Descriptions .................................................................... 46

5.4.1 Collection AC Measured Values (010) .............................................. 47

5.4.2 Collections for Harmonics Analysis (020, 021, 022) ......................... 48

5.4.3 Building-up the Measured Values ...................................................... 50

5.5 Collections of Measured Values ............................................................. 51

5.5.1 Collection 010 – AC Measured Values .............................................. 51

5.5.2 Collection 020 – Harmonics Analysis on L1 ..................................... 56

5.5.3 Collection 021 – Harmonics Analysis on L2 ..................................... 57

5.5.4 Collection 022 – Harmonics Analysis on L3 ..................................... 58

5.6 Examples of Calculating the Measured Values from the Process Values59

6 Mounting ..................................................................................................... 63

6.1 Mounting Sequence ................................................................................. 63

6.2 Inserting and Removing Devices ............................................................ 64

6.2.1 Inserting I/O Module .......................................................................... 64

6.2.2 Removing the I/O Module .................................................................. 65

7 Connect Devices ......................................................................................... 66

7.1 Connecting a Conductor to the CAGE CLAMP

................................... 66

7.2 Voltage Measurement ............................................................................. 67

7.3 Current Measurement .............................................................................. 68

7.3.1 Current Measurement on a Motor ...................................................... 68

7.3.2 Current Transformers ......................................................................... 69

7.3.3 ‘Rogowski’ Coils ................................................................................ 71

7.3.4 Additional Measuring Instruments in a Current Path ......................... 71

7.4 Power Measurement ................................................................................ 72

8 Commissioning ........................................................................................... 73

8.1 Configuration with WAGO-I/O-CHECK ............................................... 74

8.1.1 “Application“ Tab .............................................................................. 77

8.1.2 "Phase L1”, “Phase L2”, “Phase L3” Tabs ........................................ 79

8.1.3 “Neutral Conductor” Tab ................................................................... 81

8.1.4 “I/O Module“ Tab............................................................................... 82

8.1.5 “Energy“ Tab ...................................................................................... 85

8.1.6 "Factory Settings" Tab ....................................................................... 87

8.2 Displaying the Measured Values via WAGO-I/O-CHECK .................... 89

9 Diagnostics .................................................................................................. 98

10 Appendix ..................................................................................................... 99

10.1 Examples of CSV Data Files ................................................................... 99

10.1.1 Snapshot ............................................................................................. 99

10.1.2 Measurement Recording ................................................................... 103

10.2 Factory Settings ..................................................................................... 104

10.3 Register Assignment ............................................................................. 106

10.4 Parameter Assignment .......................................................................... 112

List of Figures .................................................................................................... 119

List of Tables ...................................................................................................... 120

=== Ende der Lis te f ür T e xtmar ke V erz eic hnis _vor ne == =

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

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

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1 Notes about this Documentation

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Keep this documentation!

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

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

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

instructions are included, if applicable.

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1.1 Validity of this Documentation

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This documentation is only applicable to the I/O module 750-495 (3-Phase Power

Measurement Module) of the WAGO-I/O-SYSTEM 750 series and the variants

listed in the table below.

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Table 1: Variants

Item Number

Description

750-495

3-Phase Power Measurement Module 1 A

750-495/000-001

3-Phase Power Measurement Module 5 A

750-495/000-002

3-Phase Power Measurement Module R.C.

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The I/O module 750-495 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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Table 2: Revision history

Document

version

Device version

Description of change

Hardware

Software

1.0.0

First issue

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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

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

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

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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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.

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Personal Injury Caused by Electric Current!

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

result in death or serious injury.

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Personal Injury!

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

could result in death or serious injury.

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Personal Injury!

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

result in minor or moderate injury.

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Damage to Property!

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

damage to property.

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Damage to Property Caused by Electrostatic Discharge (ESD)!

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

damage to property.

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

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Important Note!

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

damage to property.

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Additional Information:

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

documentation (e.g., the Internet).

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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:\Programme\WAGO-I/O-CHECK

Menu items are marked in bold letters.

e.g.: Save

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

menu item from a menu.

e.g.: File > New

Input

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

e.g.: Start of measurement range

“Value”

Input or selective values are marked in inverted commas.

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

[Button]

Pushbuttons in dialog boxes are marked with bold letters in square

brackets.

e.g.: [Input]

[Key]

Keys are marked with bold letters in square brackets.

e.g.: [F5]

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8 Important Notes WAGO-I/O-SYSTEM 750

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

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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 Series 750 devices may only be carried out by

electrical specialists with sufficient knowledge in automation. The specialists

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

automated environments.

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

personnel with sufficient skills in PLC programming.

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2.1.3 Use of the 750 Series in Compliance with Underlying

Provisions

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

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

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

the signals can also be (pre-) processed.

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

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

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

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

dusty environments is prohibited.

Operating 750 Series components in home applications without further measures

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

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

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

the manual for the used fieldbus coupler/controller.

WAGO-I/O-SYSTEM 750 Important Notes 9

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

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

software configurations, which meet the individual application requirements.

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

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

components.

Please send your request for modified and new hardware or software

configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

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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 components while energized!

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

installation, repair or maintenance work.

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Installation only in appropriate housings, cabinets or in electrical operation

rooms!

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

install the system and its components exclusively in appropriate housings,

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

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

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10 Important Notes WAGO-I/O-SYSTEM 750

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

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: 18.1 3. 1 /Al le S eri en ( Allg em ein e Do ku ment e) (Al lg em eine M o dul e)/ Wich tig e Erl äuter u ngen /Sic h erhei ts hinw eise /Ac htu ng/A cht ung : Defek te oder besch ädigt e Gerät e austaus chen! @ 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: 18.1 3. 2 /Al le S eri en ( Allg em ein e Do ku ment e) (Al lg em eine M o dul e)/ Wich tig e Erl äuter u ngen /Sic h erhei ts hinw eise /Ac htu ng/A cht ung : Gerät e vor kri echen den und is olier end en Stoff en schüt zen! @ 6\mod_1260181036216_21.docx @ 46747 @ @ 1

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: 18.1 3. 3 /Al le S eri en ( Allg em ein e Do ku ment e) (Al lg em eine M o dul e)/ Wich tig e Erl äuter u ngen /Sic h erhei ts hinw eise /Ac htu ng/A cht ung : Rei nig ung nur mi t zul äss ig en M at erial ien! @ 6\mod_1260181203293_21.docx @ 46751 @ @ 1

Cleaning only with permitted materials!

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

leather cloths.

Pos: 18.1 3. 4 /Al le S eri en ( Allg em ein e Do ku ment e) (Al lg em eine M o dul e)/ Wich tig e Erl äuter u ngen /Sic h erhei ts hinw eise /Ac htu ng/A cht ung : K ein K ont a ktspra y verw end 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: 18.1 3. 5 /Al le S eri en ( Allg em ein e Do ku ment e) (Al lg em eine M o dul e)/ Wich tig e Erl äuter u ngen /Sic h erhei ts hinw eise /Ac htu ng/A cht ung : V erpol ung ver mei de n! @ 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: 18.1 3. 6 /Al le S eri en ( Allg em ein e Do ku ment e) (Al lg em eine M o dul e)/ Wich tig e Erl äuter u ngen /Sic h erhei ts hinw eise /Ac htu ng/A cht ung : El ektr ost atis ch e Entl a dung v ermei de n! @ 6\mod_1260181364729_21.docx @ 46759 @ @ 1

WAGO-I/O-SYSTEM 750 Important Notes 11

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Avoid electrostatic discharge!

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

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

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

Pos: 19 /Doku ment ation all gemei n/Gli eder ungsel eme nte/---Seit en wechs el--- @ 3\mod_1221108045078_0.docx @ 21810 @ @ 1

12 Device Description WAGO-I/O-SYSTEM 750

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Pos: 20 /A ll e Ser ien (Al lg emei ne M od ule)/ Üb ers chrif te n für al le S eri en/G erä teb esc hrei bu ng/G erä tebeschreibung - Übers chri ft 1 @ 3\mod_1233756084656_21.docx @ 27096 @ 1 @ 1

3 Device Description

Pos: 21 /S eri e 7 50 ( WA GO-I/ O-SYST EM) /Ger ät ebesc hrei bu ng/Ei nlei tu ng/A nalog ei ngang s klemm en/G erä tebe schr eib ung - Einl eit ung 750- 049 5 @ 16\mod_1376321299425_21.docx @ 128508 @ @ 1

The 3-Phase Power Measurement Module (also called I/O Module) measures the

electrical data in a 3-phase supply network.

The 3 phase voltages are measured via connection to L1, L2, L3 and N. The

currents are fed to I1+ and I1−, I2+ and I2−, I3+ and I3−, IN+ and IN− via current

transformers resp. via ‘Rogowski’ coils to RC1+ and RC1−, RC2+ and RC2−,

RC3+ and RC3−, RCN+ and RCN−. Based on these input signals the I/O module

calculates numerous AC values like voltages, currents, powers (active, reactive

and apparent), energies, power factors, phase shift angles and frequencies.

Furthermore, an analysis of harmonic waves is carried out up to the 41

harmonic.

The measured values are available in the process image. Therefore, no high

computing power is required from the higher-level controller.

The calculated values indicate whether the load is inductive or capacitive and

whether it consumes or generates energy. For this purpose a 4-quadrant display is

incorporated in WAGO-I/O-CHECK.

The I/O module provides a great number of measured values for a comprehensive

supply network analysis via the fieldbus. By means of the measured values the

operator can regulate the supply to a drive or machine in the best possible way

and protect the installation from damage/failure.

The I/O module 750-495 measures currents up to 1 A, 750-495/000-001 measures

currents up to 5 A and 750-495/000-002 measures currents via ‘Rogowski’ coils

RT500 up to 500 A or via RT2000 up to 2000 A.

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WAGO-I/O-SYSTEM 750 Device Description 13

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Pos: 23 /A ll e Ser ien (Al lg emei ne M od ule)/ Üb ers chrif te n für al le S eri en/G erä teb esc hrei bu ng/A nsic ht - Ü b erschr if t 2 @ 4\ mod_1240984217343_21.docx @ 31 958 @ 2 @ 1

3.1 View

Pos: 24 /S eri e 7 50 ( WA GO-I/ O-SYST EM)/ Gerät ebesc hrei bung/A nsic ht/A nalogei nga ngskle mmen/ Ansic ht 750-0495 @ 16\mod_1376316917249_21.docx @ 128480 @ @ 1

Figure 1: View of 750-495 and 750-495/000-001 (left) and 750-495/000-002 (right)

Pos: 25 /S eri e 7 50 ( WA GO-I/ O-SYST EM)/ Ger ätebesc hrei bung/A nsic ht/A nsicht C ageCl amp® _Leg ende mit LE Ds_ ohne Leis tung skont akte @ 16\mod_1371816091053_21.docx @ 124052 @ @ 1

Table 5: Caption acc. to figure “View”

Pos.

Description

Details see section

Marking possibility with

Mini-WSB

---

Status LEDs

“Device Description” > “Display Elements”

Data contacts

“Device Description” > ”Connectors”

CAGE CLAMP

supplies

“Device Description” > ”Connectors”

Release tab

“Mounting” > ”Inserting and Removing

Devices”

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14 Device Description WAGO-I/O-SYSTEM 750

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Pos: 27 /A ll e Ser ien (Al lg emei ne M od ule)/ Üb ers chrif te n für al le S eri en/G erä teb esc hrei bu ng/A nsc hlüs se - Über schri ft 2 @ 4\mod_1240984262656_21.docx @ 31961 @ 2 @ 1

3.2 Connectors

Pos: 28 /S eri e 7 50 ( WA GO-I/ O-SYST EM) /Ger ät ebesc hrei bu ng/A nsc hlüss e/D ate nko ntakt e/Kl em menbu s - Ü bersc hrift 3 @ 6\mod_1256294684083_21.docx @ 43660 @ 3 @ 1

3.2.1 Data Contacts/Internal Bus

Pos: 29.1 /S erie 75 0 (W AGO- I/O-S YST EM)/ Ger äteb esc hrei bung /Ansc hl üsse /Da ten konta kte - Feld bus kop pler/- con troll er , Ab bil dung u nd B esc hrei bung @ 3 \mod_1231771259187_21.docx @ 26002 @ @ 1

Communication between the 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: 29.2 /Serie 750 (WAGO-I/O-SYST EM)/ Wichtig e Erläut eru ngen/ Sic herh eits- und so nstig e H inw eis e/Ac htu ng/A ch tung : Bus kl em men nic ht a uf G oldf eder k onta kte 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: 29.3 /Serie 750 (WAGO-I/O-SYST EM)/ Wic htige Erl äuter unge n/Sic herhei ts- und sonstige Hinweise/Achtung/Achtung: ESD - Auf g ut e Er dung der U mgeb ung ac hte n! @ 7\mod_1266318538667_21.docx @ 50708 @ @ 1

Ensure that the environment is well grounded!

The modules are equipped with electronic components that may be destroyed by

electrostatic discharge. When handling the modules, ensure that the environment

(persons, workplace and packing) is well grounded. Avoid touching conductive

components, e.g. data contacts.

Pos: 30 /S eri e 7 50 ( WA GO-I/ O-SYST EM) /Ger ät ebesc hrei bu ng/A nsc hlüss e/L eist ung skont akt e/F eld vers orgu ng - Üb ersc hrift 3 @ 6\ mod_1256294692864_21.docx @ 43664 @ 3 @ 1

3.2.2 Power Jumper Contacts/Field Supply

Pos: 31 /S eri e 7 50 ( WA GO-I/ O-SYST EM)/ Gerät ebesc hrei bung/A nschl üss e/Leist ungs kont akte nic ht vorh ande n @ 8\mod_1281073936319_21.docx @ 62530 @ @ 1

The I/O module 750-495 has no power jumper contacts.

Pos: 32 /Doku ment ation all gemei n/Gli eder ungsel eme nte/---Seit en wechs el--- @ 3\mod_1221108045078_0.docx @ 21810 @ @ 1

WAGO-I/O-SYSTEM 750 Device Description 15

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Pos: 33 /S eri e 7 50 ( WA GO-I/ O-SY STEM )/ Ger äteb esc hrei bu ng/A nsc hl üsse/ CAG E C LAMP -An schl üss e - Üb ers chrif t 3 @ 6 \mod_1256296337770_21.docx @ 43674 @ 3 @ 1

3.2.3 CAGE CLAMP

Connectors

Pos: 34 /S eri e 7 50 ( WA GO-I/ O-SYST EM) /Ger ät ebesc hrei bu ng/A nsc hlüss e/A nalog ei nga ngs klem men/A nsc hlü sse 750-049 5 CAG E C LAM P @ 16 \mod_1376319713900_21.docx @ 128499 @ @ 1

12 CAGE CLAMP

connectors make up the measuring inputs. The 3-phase

supply network and the loads/generators are clamped here. See also section

„Connect Devices“.

Three connectors each form the measuring channels:

• Channel 1: L1, I1+ and I1− (voltage and current of phase L1)

• Channel 2: L2, I2+ and I2− (voltage and current of phase L2)

• Channel 3: L3, I3+ and I3− (voltage and current of phase L3)

• Channel 4: IN+ and IN− (current of neutral conductor)

Figure 3: CAGE CLAMP

connectors 750-495 and 750-495/000-001

Table 6: CAGE CLAMP

connectors 750-495 and 750-495/000-001

Connector

Function

Voltage L1

Voltage L2

Voltage L3

Neutral conductor

(reference for all measurements)

I1+ and I1−

Current L1

I2+ and I2−

Current L2

I3+ and I3−

Current L3

IN+ and IN−

Current N

16 Device Description WAGO-I/O-SYSTEM 750

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Figure 4: CAGE CLAMP

connectors 750-495/000-002

Table 7: CAGE CLAMP

connectors 750-495/000-002

Connector

Function

Voltage L1

Voltage L2

Voltage L3

Neutral conductor

(reference for all measurements)

RC1+ and RC1−

Current L1 via ‘Rogowski coil’

RC2+ and RC2−

Current L2 via ‘Rogowski coil’

RC3+ and RC3−

Current L3 via ‘Rogowski coil’

RCN+ and RCN−

Current N via ‘Rogowski coil’

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WAGO-I/O-SYSTEM 750 Device Description 17

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Pos: 36 /A ll e Ser ien (Al lg emei ne M od ule)/ Üb ers chrif te n für al le S eri en/G erä teb esc hreib ung /Anz eig eele ment e - Üb ersc hrift 2 @ 4\ mod_1240984390875_21.docx @ 31964 @ 2 @ 1

3.3 Display Elements

Pos: 37 /S eri e 7 50 ( WA GO-I/ O-SYST EM)/ Gerät ebesc hrei bung/A nzei geele mente /Anal ogei ngang sklem men/A nzeig eele mente 7 50-0494 , - 0495 @ 16\mod_1371738731125_2 1.doc x @ 12388 0 @ @ 1

LED A indicates the operating status, LEDs B … H indicate possible errors.

Figure 5: LED-indicators

The meaning of these indications is as follows:

Status Message

LED A

Off

No operational readiness or

the internal data bus communication is interrupted.

Note: If the watchdog was disabled, the LED is always

green. See section “Commissioning” > “Configuration

with WAGO-I/O-CHECK“.

Green

Operational readiness and correct internal data bus

communication

LED B

Off

No error

Red

General error message for L1:

Under-/overvoltage or overcurrent

LED C

Off

No error

Red

General error message: Clipping of a current measuring

path IL1, IL2 or IL3

LED D

Off

No error

Red

High measuring error, caused by undershooting the min.

voltage at L1, L2 or L3

LED E

Off

No error

Red

General error message for L2:

Under-/overvoltage or overcurrent

LED F

Off

No error

Red

General error message for L3:

Under-/overvoltage or overcurrent

LED G

Off

No error

Red

General error message: Clipping of a voltage measuring

path L1, L2 or L3

LED H

Off

No error

Yellow

Error of the phase sequence L1-L2-L3

Pos: 38 /A ll e Ser ien (Al lg emei ne M od ule)/ Üb ers chrif te n für al le S eri en/G erä teb esc hreib ung /Be dienel e ment e - Üb ersc hrif t 2 @ 4 \mod_1239191655456_21.docx @ 30439 @ 2 @ 1

3.4 Operating Elements

Pos: 39 /S eri e 7 50 ( WA GO-I/ O-SYST EM) /G erät eb esc hrei bung /Be die nel em ente/ Bedi en elem ent e B uskl em me 7 50- xxxx nicht vor hande n @ 4\mod_1236322031125_21.docx @ 28 063 @ @ 1

The I/O module 750-495 has no operating elements.

Pos: 40 /Doku ment ation all gemei n/Gli eder ungsel eme nte/---Seit en wechs el--- @ 3\mod_1221108045078_0.docx @ 21810 @ @ 1

18 Device Description WAGO-I/O-SYSTEM 750

750-495 3-Phase Power Measurement Module

Manual

Version 1.0.0

Pos: 41 /A ll e Ser ien (Al lg emei ne M od ule)/ Üb ers chrif te n für al le S eri en/G erä teb esc hrei bu ng/Sc he mati sch es S ch altbi ld - Über schr ift 2 @ 4\mod_1240984441312_21.docx @ 31967 @ 2 @ 1

3.5 Schematic Diagram

Pos: 42 /S eri e 7 50 ( WA GO-I/ O-SYST EM) /G erät eb esc hrei bung /Sc he mati sche Sc hal tbil der/ Anal og eing ang skl em men/ Sc hemat isc hes Sc halt bild 75 0-0 495 @ 16\mod_1376382441894_21.docx @ 128560 @ @ 1