WAGO 2-channel, 4-20mA User manual

Brand: WAGO

Model: 2-channel, 4-20mA

Type: User manual

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Manual

WAGO-I/O-SYSTEM 750

2AO 4-20mA

750-554

2-Channel Analog Output Module 0/4-20 mA

1.1.0

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2 WAGO-I/O-SYSTEM 750

750-554 2AO 4-20mA

Manual

1.1.0

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 Liste für Textmarke Einband_vorne ===

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

750-554 2AO 4-20mA

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Table of Contents

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

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

1.2 Copyright................................................................................................... 5

1.3 Symbols..................................................................................................... 6

1.4 Number Notation....................................................................................... 8

1.5 Font Conventions ...................................................................................... 8

2 Important Notes........................................................................................... 9

2.1 Legal Bases ............................................................................................... 9

2.1.1 Subject to Changes ............................................................................... 9

2.1.2 Personnel Qualifications....................................................................... 9

2.1.3 Use of the 750 Series in Compliance with Underlying Provisions ...... 9

2.1.4 Technical Condition of Specified Devices......................................... 10

2.2 Safety Advice (Precautions).................................................................... 11

3 Device Description ..................................................................................... 13

3.1 View ........................................................................................................ 15

3.2 Connectors............................................................................................... 16

3.2.1 Data Contacts/Internal Bus................................................................. 16

3.2.2 Power Contacts/Field Supply ............................................................. 17

3.2.3 CAGE CLAMP

Connections ........................................................... 18

3.3 Display Elements .................................................................................... 19

3.4 Operating Elements................................................................................. 19

3.5 Schematic Diagram ................................................................................. 20

3.6 Technical Data ........................................................................................ 21

3.6.1 Device data ......................................................................................... 21

3.6.2 Supply................................................................................................. 21

3.6.3 Communication .................................................................................. 21

3.6.4 Outputs ............................................................................................... 21

3.7 Approvals ................................................................................................ 22

3.8 Standards and Guidelines........................................................................ 23

4 Assembly..................................................................................................... 24

4.1 Assembly Sequence ................................................................................ 24

4.2 Inserting and Removing Devices ............................................................ 25

4.2.1 Inserting I/O Module .......................................................................... 25

4.2.2 Removing the I/O Module.................................................................. 26

5 Connect Devices ......................................................................................... 27

5.1 Connecting a conductor to the CAGE CLAMP

.................................... 27

5.2 Connection Example ............................................................................... 28

6 Process Image............................................................................................. 29

6.1 Standard Format ...................................................................................... 29

6.2 Special Formats....................................................................................... 30

7 Use in Hazardous Environments.............................................................. 31

7.1 Identification ........................................................................................... 32

7.1.1 For Europe according to CENELEC and IEC.................................... 32

Manual

1.1.0

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

750-554 2AO 4-20mA

Manual

1.1.0

7.1.2 For America according to NEC 500................................................... 35

7.2 Installation Regulations........................................................................... 36

7.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc.

DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)................... 37

7.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX

554086 X)........................................................................................... 38

7.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)39

7.2.4 ANSI/ISA 12.12.01 ............................................................................ 40

List of Figures...................................................................................................... 41

List of Tables........................................................................................................ 42

=== Ende der Liste für Textmarke Verzeichnis_ vorne ===

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

750-554 2AO 4-20mA

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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

This documentation is only applicable to the I/O module 750-554 (2AO 4-20mA)

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/Variant Designation

750-554 2AO 4-20mA

750-554/000-200 2AO 4-20mA/S5

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The I/O module 750-554 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 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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Manual

1.1.0

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

750-554 2AO 4-20mA

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1.3 Symbols

Personal Injury!

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

result in death or serious injury.

Personal Injury Caused by Electric Current!

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

result in death or serious injury.

Personal Injury!

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

could result in death or serious injury.

Personal Injury!

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

result in minor or moderate injury.

Damage to Property!

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

damage to property.

Damage to Property Caused by Electrostatic Discharge (ESD)!

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

damage to property.

Important Note!

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

damage to property.

Manual

1.1.0

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

750-554 2AO 4-20mA

Additional Information:

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

documentation (e.g., the Internet).

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Manual

1.1.0

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

750-554 2AO 4-20mA

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1.4 Number Notation

Table 2: 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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1.5 Font Conventions

Table 3: 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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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Important Notes 9

750-554 2AO 4-20mA

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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.

Manual

1.1.0

10 Important Notes WAGO-I/O-SYSTEM 750

750-554 2AO 4-20mA

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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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Important Notes 11

750-554 2AO 4-20mA

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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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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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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.

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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.

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Cleaning only with permitted materials!

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

leather cloths.

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Manual

1.1.0

12 Important Notes WAGO-I/O-SYSTEM 750

750-554 2AO 4-20mA

Do not use any contact spray!

Do not use any contact spray. The spray may impair contact area functionality in

connection with contamination.

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Do not reverse the polarity of connection lines!

Avoid reverse polarity of data and power supply lines, as this may damage the

devices involved.

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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).

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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Device Description 13

750-554 2AO 4-20mA

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3 Device Description

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The analog output module 750-554 (2AO 4-20mA) create a standardized signal of

4-20 mA for the field area.

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The module has two output channels and enables, for example, the direct wiring

of two 2-conductor actuators to the connections AO 1 and 0V or AO 2 and 0V.

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Both channels have a common reference potential and a shield connection (S).

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The shield connection is fed directly to the carrier rail and contact is made

automatically by snapping the module onto the rail.

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The assignment of the connections is described in the "Connections" section.

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Connection examples are in the "Connecting devices - connection examples"

section.

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The operational readiness and the trouble-free internal data bus communication of

the channels are indicated via a green function LED.

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The meaning of the LEDs are described in the chapter „Display Elements“.

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Use an appropriate supply module!

Use an appropriate supply module (e.g. 750-602) if an electrically isolated voltage

supply is required!

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The voltage supply is done via the field supply.

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The I/O module receives the 24V voltage supply for the field level from an

upstream I/O module or from the fieldbus coupler/controller via the power

contacts used as blade contacts. It then provides this potential to subsequent I/O

modules via the power contacts used as spring contacts.

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Do not exceed maximum current via power contacts!

The maximum current to flow through the power contacts is 10 A.

Greater currents can damage the power contacts.

When configuring the system, ensure that this current is not exceeded. If

exceeded, an additional potential feed module must be used.

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The Output signal is electrically isolated and will be transmitted with a resolution

of 12 bits.

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With consideration of the power jumper contacts, the individual input modules

can be arranged in any combination when configuring the fieldbus node. An

arrangement in groups within the group of potentials is not necessary.

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Manual

1.1.0

14 Device Description WAGO-I/O-SYSTEM 750

750-554 2AO 4-20mA

The I/O module 750-554 can be used with all fieldbus couplers/controllers of the

WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -323, -324

and -327).

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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Device Description 15

750-554 2AO 4-20mA

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3.1 View

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A1 A2

13 14

0V 0V

750-554

Figure 1: View

Table 4: Caption acc. to figure “View“

No. Designation Description Details see chapter

1 ---

Marking possibility with

Mini-WSB

---

2 A, C Status-LEDs

„Device Description“ >

„Display elements“

3 --- Data contacts

„Device Description“ >

„Connections“

4 1 … 8

CAGE CLAMP

- supplies

Outputs A 1, A 2, Field

supply0 V and Shield

„Technical manual “ >

„Connections“

5 --- Power jumper contacts +24 V

„Device Description“ >

„Connections“

6 --- Release clip

„Assembly“ > „Insert and

delete Device“

7 --- Power jumper contacts 0 V

„Device Description“ >

„Connections“

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Manual

1.1.0

16 Device Description WAGO-I/O-SYSTEM 750

750-554 2AO 4-20mA

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3.2 Connectors

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3.2.1 Data Contacts/Internal Bus

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Communication between the coupler/controller and the bus modules as well as the

system supply of the bus 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

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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!

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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.

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Manual

1.1.0

WAGO-I/O-SYSTEM 750 Device Description 17

750-554 2AO 4-20mA

Manual

1.1.0

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3.2.2 Power Contacts/Field Supply

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Risk of injury due to sharp-edged male contacts!

The male contacts are sharp-edged. Handle the module carefully to prevent injury.

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_1266317883167_21. doc @ 50688 @ @ 1

The I/O module 750-554 has 2 self-cleaning power jumper contacts that supply

and transmit power for the field side. The contacts on the left side of the I/O

module are designed as male contacts and the contacts on the right side as spring

contacts.

Table 5: Power jumper contacts

Connection Type Number Function

1 Blade contact 2

Infeed of the field

supply voltage

and 0 V)

Figure 3: Power

jumper contacts

2 Spring contact 2

Forwarding of the

field supply voltage

and 0 V)

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Do not exceed maximum current via power contacts!

The maximum current to flow through the power contacts is 10 A.

Greater currents can damage the power contacts.

When configuring the system, ensure that this current is not exceeded. If

exceeded, an additional potential feed module must be used.

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Use potential feed module for Ground (earth)!

The I/O module has no power contacts for PE intake and transfer. Use a potential

feed module when a PE feed is needed for the subsequent I/O modules.

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18 Device Description WAGO-I/O-SYSTEM 750

750-554 2AO 4-20mA

Manual

1.1.0

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3.2.3 CAGE CLAMP

Connections

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Table 6: Connections

Connectio

Chann

Designation Function

1 AO 1 Output AO 1: Signal voltage

2 24 V Output AO 1: Actor supply 24 V

3 0 V Output AO 1: Actor supply 0 V

S Output AO 1: Shield

5 AO 2 Output AO 2: Signal voltage

6 24 V Output AO 2: Actor supply 24 V

7 0 V Output AO 2: Actor supply 0 V

S Output AO 2: Shield connection

Power

jumper

contacts

- +24 V Field supply 24 V

A1 A2

0V 0V

750-554

24 V

AO 2

24 V

AO 1

Shield

(screen)

Shield

(screen)

Fig. 1: Connections

Power

jumper

contacts

- 0 V Field supply 0 V

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WAGO-I/O-SYSTEM 750 Device Description 19

750-554 2AO 4-20mA

Manual

1.1.0

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3.3 Display Elements

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Table 7: Display elements

LED Channel

Desig-

nation

State Function

off

No operational readiness or the

internal data bus communication is

interrupted

A 1

State

AO 1

green

Operational readiness and trouble-

free internal data bus communication

off

No operational readiness or the

internal data bus communication is

interrupted

13 14

Figure 4: Display

elements

E 2

State

AO 2

green

Operational readiness and trouble-

free internal data bus communication

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3.4 Operating Elements

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The I/O module 750-554 has no operating elements.

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20 Device Description WAGO-I/O-SYSTEM 750

750-554 2AO 4-20mA

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3.5 Schematic Diagram

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Shield

(screen)

AO 1

AO 2

24V

10nF

270pF 10nF 10nF

Logic

Function

Shield

(screen)

750-554