WAGO 750-630 User Manual

Fieldbus Independent
I/O Modules

SSI Transmitter Interface
750-630

Manual

Version 1.1.1

ii • General

WAGO-I/O-SYSTEM 750
I/O Modules

Copyright  2008 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: [e-mail]

W

eb: http://www.wago.com

Technical Support

Phone: [phone] – 5 55
Fax: [phone] – 85 55

E-Mail: [e-mail]

Every conceivable measure has been taken to ensure the correctness and com­pleteness of this documentation. However, as errors can never be fully ex­cluded, we would appreciate any information or ideas at any time.

E-Mail: [e-mail]
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 trademark or patent protected.

Content • iii

WAGO-I/O-SYSTEM 750
I/O Modules

Content

1 Important Notes ..........................................................................................4

1.1 Legal Bases............................................................................................... 4

1.1.1 Copyright ............................................................................................. 4

1.1.2 Personnel Qualifications......................................................................4

1.1.3 Use of the 750 Series in Compliance with Underlying Provisions .....5

1.1.4 Technical Condition of Specified Devices .......................................... 5

1.2 Standards and Guidelines for Operating the 750 Series........................... 6

1.3 Symbols....................................................................................................7

1.4 Safety Information....................................................................................8

1.5 Font Conventions ..................................................................................... 9

1.6 Number Notation......................................................................................9

1.7 Scope ......................................................................................................10

2 I/O Modules

...............................................................................................11

2.1 Special Modules .....................................................................................11

2.1.1 750-630 (/xxx-xxx) [SSI Transmitter Interface] ...............................11

2.1.1.1 Variations......................................................................................11

2.1.1.2 View..............................................................................................11

2.1.1.3 Description....................................................................................12

2.1.1.4 Display Elements .......................................................................... 13

2.1.1.5 Schematic Diagram.......................................................................13

2.1.1.6 Technical Data .............................................................................. 14

2.1.1.7 Process Image ...............................................................................16

2.1.1.8 Adjustable Variation 750-630/003-000 ........................................18

3 Use in Haz

ardous Environments .............................................................20

3.1 Marking Configuration Examples..........................................................21

3.1.1 Marking for Europe according to CENELEC and IEC ..................... 21

3.1.2 Marking for America according to NEC 500 .................................... 24

3.2 Installation Regulations..........................................................................25

3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc.
DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)

..................26

3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX
554086 X)

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

3.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)29

3.2.4 Special conditions for safe use (ATEX Certificate DEKRA

11ATEX0203 X) ...............................................................................31

3.2.5 ANSI/ISA 12.12.01 ........................................................................... 32

4 • Content
Legal Bases

WAGO-I/O-SYSTEM 750
I/O Modules

1 Important Notes

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.

1.1 Legal Bases

1.1.1 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.

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.

1.1.2 Personnel Qualifications

The use of the product described in this Manual requires special personnel
qualifications, as shown in the following table:

Activity Electrical specialist

Instructed
personnel*)

Specialists**) having
qualifications in PLC
programming

Assembly

X X

Commissioning

X X

Programming

X

Maintenance

X X

Troubleshooting

X

Disassembly

X X

*) Instructed persons have been trained by qualified personnel or electrical specialists.

**) A specialist is a person, who – thanks to technical training – has the qualification, know­ ledge and expertise to meet the required specifications of this work and to identify any po­ tential hazardous situation in the above listed fields of activity.

Important Notes • 5
Legal Bases

WAGO-I/O-SYSTEM 750
I/O Modules

All responsible persons have to familiarize themselves with the underlying
legal standards to be applied. WAGO Kontakttechnik GmbH & Co. KG does
not assume any liability whatsoever resulting from improper handling and
damage incurred to both WAGO´s own and third-party products by
disregarding detailed information in this Manual.

1.1.3 Use of the 750 Series in Compliance with Underlying
Provisions

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

1.1.4 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.
Changes in hardware, software and firmware are permitted exclusively within
the framework of the various alternatives that are documented in the specific
manuals. WAGO Kontakttechnik GmbH & Co. KG will be exempted from
any liability in case of changes in hardware or software as well as to non­compliant usage of components.

Please send your request for modified and new hardware or software
configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

6 • Content
Standards and Guidelines for Operating the 750 Series

WAGO-I/O-SYSTEM 750
I/O Modules

1.2 Standards and Guidelines for Operating the 750 Series

Please adhere to the standards and guidelines required for the use of your
system:

 The data and power lines shall be connected and installed in compliance

with the standards required to avoid failures on your system and to
substantially minimize any imminently hazardous situations resulting in
personal injury.

 For assembly, start-up, maintenance and troubleshooting, adhere to the

specific accident prevention provisions which apply to your system (e.g.
BGV A 3, "Electrical Installations and Equipment").

 Emergency stop functions and equipment shall not be made ineffective.

See relevant standards (e.g. DIN EN 418).

 The equipment of your system shall be conform to EMC guidelines so that

any electromagnetic interferences will be eliminated.

 Operating 750 Series components in home applications without further

measures is permitted only if they meet the emission limits (emissions of
interference) in compliance with EN 61000-6-3. You will find the detailed
information in section "WAGO-I/O-SYSTEM 750"  "System
Description"  "Technical Data".

 Please observe the safety precautions against electrostatic discharge in

accordance with DIN EN 61340-5-1/-3. When handling the modules,
please ensure that environmental factors (persons, working place and
packaging) are well grounded.

 The valid standards and guidelines applicable for the installation of switch

cabinets shall be adhered to.

Important Notes • 7
Symbols

WAGO-I/O-SYSTEM 750
I/O Modules

1.3 Symbols

Danger
Always observe this information to protect persons from injury.

Warning
Always observe this information to prevent damage to the device.

Attention

Marginal conditions that must always be observed to ensure smooth and
efficient operation.

ESD (Electrostatic Discharge)
Warning of damage to the components through electrostatic discharge.
Observe the precautionary measure for handling components at risk of
electrostatic discharge.

Note
Make important notes that are to be complied with so that a trouble-free and
efficient device operation can be guaranteed.

Additional Information

References to additional literature, manuals, data sheets and internet pages.

8 • Content
Safety Information

WAGO-I/O-SYSTEM 750
I/O Modules

1.4 Safety Information

When connecting the device to your installation and during operation, the
following safety notes must be observed:

Danger
The WAGO-I/O-SYSTEM 750 and its components are an open system. It
must only be assembled in housings, cabinets or in electrical operation rooms.
Access is only permitted via a key or tool to authorized qualified personnel.

Danger
All power sources to the device must always be switched off before carrying
out any installation, repair or maintenance work.

Warning

Replace defective or damaged device/module (e.g. in the event of deformed
contacts), as the functionality of field bus station in question can no longer be
ensured on a long-term basis.

Warning

The components are not resistant against materials having seeping and
insulating properties. Belonging to this group of materials is: e.g. aerosols,
silicones, triglycerides (found in some hand creams). If it cannot be ruled out
that these materials appear in the component environment, then the
components must be installed in an enclosure that is resistant against the
above mentioned materials. Clean tools and materials are generally required
to operate the device/module.

Warning
Soiled contacts must be cleaned using oil-free compressed air or with ethyl
alcohol and leather cloths.

Warning
Do not use contact sprays, which could possibly impair the functioning of the
contact area.

Warning

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

ESD (Electrostatic Discharge)

The devices are equipped with electronic components that may be destroyed
by electrostatic discharge when touched.

Important Notes • 9
Font Conventions

WAGO-I/O-SYSTEM 750
I/O Modules

Warning

For components with ETHERNET/RJ-45 connectors:
Only for use in LAN, not for connection to telecommunication circuits.

1.5 Font Conventions

italic

Names of paths and data files are marked in italic-type.
e.g.: C:\Programs\WAGO-IO-CHECK

italic

Menu items are marked in italic-type, bold letters.
e.g.: Save

\

A backslash between two names characterizes the selection of a
menu point from a menu.
e.g.: File \ New

END

Pushbuttons are marked as bold with small capitals
e.g.: ENTER

< >

Keys are marked bold within angle brackets
e.g.: <F5>

Courier

The print font for program codes is Courier.
e.g.: END_VAR

1.6 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 (.)

10 • Important Notes
Scope

WAGO-I/O-SYSTEM 750
I/O Modules

1.7 Scope

This manual describes the Digital Input Module 750-630 SSI Transmitter
Interface of the modular WAGO-I/O-SYSTEM 750.

Handling, assembly and start-up are described in the manual of the Fieldbus
Coupler. Therefore this documentation is valid only in the connection with the
appropriate manual.

750-630 (/xxx-xxx) [SSI Transmitter Interface] • 11
Variations

WAGO-I/O-SYSTEM 750
I/O Modules

2 I/O Modules

2.1 Special Modules

2.1.1 750-630 (/xxx-xxx) [SSI Transmitter Interface]

2.1.1.1 Variations

Item-No. Designation Description

750-630 SSI/ 24Bit/ 125kHz/ Gray SSI Transmitter Interface

750-630/000-001 SSI/ 24Bit/ 125kHz/ Bin SSI Transmitter Interface

750-630/000-002 SSI/ 24Bit/ 250kHz/ Bin SSI Transmitter Interface

750-630/000-004 SSI/ 24Bit/ 125kHz/ Gray/ Status SSI Transmitter Interface

750-630/000-005 SSI/ 15Bit/ 125kHz/ Gray/ Status SSI Transmitter Interface

750-630/000-006 SSI/ 24Bit/ 250kHz/ Gray SSI Transmitter Interface

750-630/000-007 SSI/ 24Bit/ 83kHz/ Gray/ Status SSI Transmitter Interface

750-630/000-008 SSI/ 25Bit/ 125kHz/ Gray SSI Transmitter Interface

750-630/000-009 SSI/ 13Bit/ 250kHz/ Bin SSI Transmitter Interface

750-630/000-011 SSI/ 25Bit/ 125kHz/ Bin SSI Transmitter Interface

750-630/000-012 SSI/ 13Bit/ 125kHz/ Gray SSI Transmitter Interface

750-630/000-013 SSI/ 29Bit/ 125kHz/ Bin SSI Transmitter Interface

750-630/003-000 Variable configuration SSI Transmitter Interface

2.1.1.2 View

D+ D-

++

--

CL+ CL-

13 14

C

D

B

A

750-630

-D

Power jumper contacts

Data contacts

24V

0V

-CL

Status

+D

+CL

Fig. 2.1.1-2: View g063000e

12 • 750-630 (/xxx-xxx) [SSI Transmitter Interface]
Description

WAGO-I/O-SYSTEM 750
I/O Modules

2.1.1.3 Description

This module is an SSI interface for the direct connection to an SSI transmitter.

The power supply for the transmitter is derived internally from the power
jumper contacts.

After the interface has given a clock pulse to the sensor, the interface reads the
incoming data and transmits it directly in the form of a data word into the
process image of the PLC or PC. It is possible to factory adjust different
operating modes, transfer frequencies and data widths by means of the control
register.

The operational readiness of the module is indicated via a green function
LED.

Any configuration of the specialty modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.

The field side supply voltage of 24 V for the output module is derived from
adjacent I/O modules or from a supply module. The supply voltage for the
field side is made automatically through the individual I/O modules by means
of power jumper contacts.

Attention
The module has no power jumper contact for receiving and transmitting the
ground (earth) potential. A supply module is required, if the adjacent
modules need to be connected to the earth.

Warning

The maximum current of the internal power jumper contacts is 10 A. When
configuring the system it is important not to exceed the maximum/sum
current. However, if such a case should occur, another supply module must
be added.

The module 750-630 and its variations can be used with all
couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy
types 750-320, -323, -324 and -327).

This description is valid from hardware and software version XXXX3A05...
and up. The version is specified in the manufacturing number, which is part of
the lateral marking on the module.

750-630 (/xxx-xxx) [SSI Transmitter Interface] • 13
Display Elements

WAGO-I/O-SYSTEM 750
I/O Modules

2.1.1.4 Display Elements

LED Channel State Function

off

Watchdog Timer Overflow *

* The green LED goes off if no process
data is transmitted by the fieldbus
coupler / controller for 100 ms.

13 14

C

D

B

A

A

Fig. 2.1.1-1:
Display Elements

g063002x

A Status

green Normal operation

2.1.1.5 Schematic Diagram

Status

Logic

1

2

3

4

5

6

7

8

750-630

-D

-D

-CL

-CL

+D

+D

+CL

+CL

0V_EX

24V

24V

0V

DC

DC

100nF

270pF

270pF

270pF

270pF

0V

+5V

0V

+5V

270pF

270pF

2k2

120R

2k2

Fig. 2.1.1-2: Schematic Diagram g063001e

14 • 750-630 (/xxx-xxx) [SSI Transmitter Interface]
Technical Data

WAGO-I/O-SYSTEM 750
I/O Modules

2.1.1.6 Technical Data

Module Specific Data

Transmitter connection Inputs: + D, -D, Outputs: +CL, -CL

Current consumption

typ.

(internal) 85 mA

Voltage via power jumper contacts DC 24 V (-15 % ... +20 %)

Transmission rate 125 kHz (max. 1 MHz)

Serial Input max. 32 bit width (adjustable)

Signal output (+CL, -CL) differential signal (RS 422)

Signal input (+D, -D) differential signal (RS 422)

Code Gray / Bin

Internal bit width 1 x 32 bits (24 bit used, 8 bit reserved)

2 x 8 bits control/status (option)

Isolation 500 V (System/Supply)

Dimensions W x H* x L
* from upper edge of 35 DIN rail

12 mm x 64 mm x 100 mm

Weight ca. 55 g

Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)

Conformity Marking

CULUS

(UL508)

750-630 (/xxx-xxx) [SSI Transmitter Interface] • 15
Technical Data

WAGO-I/O-SYSTEM 750
I/O Modules

The following Ex approvals have been granted to the basic version of 750-630
I/O modules and the variation 750-630/000-xxx:

KEMA (01 KEMA 1024X) II 3 G EEx nA II T4

CULUS

(ANSI/ISA 12.12.01) Class I Div2 ABCD T4

The following Ex approvals have been granted to the variation 750-630/003­000:

TÜV (07 ATEX 554086 X)

I M2 Ex d I
II 3 G Ex nA IIC T4
II 3 D Ex tD A22 IP6X T135°C

Permissible operation temperature: 0 °C ≤ TA ≤ +60 °C

TÜV (TUN 09.0001X)

Ex d I
Ex nA IIC T4
Ex tD A22 IP6X T135°C

Permissible operation temperature: 0 °C ≤ TA ≤ +60 °C

CULUS

(ANSI/ISA 12.12.01) Class I Div2 ABCD T4

More Information
Detailed references to the approvals are listed in the document "Overview
Approvals WAGO-I/O-SYSTEM 750", which you can find on the CD ROM
ELECTRONICC Tools and Docs (Item-No.: 0888-0412)
or in the internet under: http://www.wago.com  Documentation 
WAGO-I/O-SYSTEM 750  System Description

16 • 750-630 (/xxx-xxx) [SSI Transmitter Interface]
Process Image

WAGO-I/O-SYSTEM 750
I/O Modules

2.1.1.7 Process Image

Using the I/O module 750-630, a 5 byte input and output process image can be
transferred to the fieldbus coupler / controller via one logical channel. The
data received by the transmitter are stored in 3 input bytes (D0 ... D2). Neither
the input byte (D3) and four output bytes (D0 ... D3) nor the control byte (C0)
are used. The status byte (S0) indicates transmitter or cable errors (only
versions 750-630/000-004, /000-005 and /000-007).
Processing the status byte via the coupler / controller is optional, which means
that accessing or parsing the status information depends on the fieldbus sys­tem.

Attention

The representation of the process data of some I/O modules or their variations
in the process image depends on the fieldbus coupler/-controller used. Please
take this information as well as the particular design of the respective
control/status bytes from the section "Fieldbus Specific Design of the Process
Data" included in the description concerning the process image of the
corresponding coupler/controller.

Input data Output data

S0 Status byte C0 Control byte

D0 Process data byte 0 (LSB) D0 0 (reserved)

D1 Process data byte 1 D1 0 (reserved)

D2 Process data byte 2 (MSB) D2 0 (reserved)

D3 0 (reserved) D3 0 (reserved)

Control byte C0

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 0 0 0 0 0 0 0

0 reserved

750-630 (/xxx-xxx) [SSI Transmitter Interface] • 17
Process Image

WAGO-I/O-SYSTEM 750
I/O Modules

Status byte S0

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 ERROR 0 0 0 0 FRAME_

E

SSI_IN_

E

ERROR A general error has occurred. This bit is set in a FRAME or SSI-IN error has

occurred.

FRAME_E An invalid data frame has occurred, i.e. the data frame is not terminated with

zero (possibly a wire breakage on clock lines).

SSI_IN_E The SSI input of the module has low level when no data transfer is taking

place. (SSI has swapped no power supply or wire breakage at the SSI data
inputs D+ or D- or data lines).

0 reserved

18 • 750-630 (/xxx-xxx) [SSI Transmitter Interface]
Adjustable Variation 750-630/003-000

WAGO-I/O-SYSTEM 750
I/O Modules

2.1.1.8 Adjustable Variation 750-630/003-000

The serial interface module 750-630/003-000 may be parameterized with the
software tool WAGO-I/O-CHECK 2 (Item-No.: 759-302).
The presetting is Baud rate: 9600 baud, data bits: 8, Parity: none, stop bits: 1.
In this mode of operation the module has the same behavior and also the same
process values as the base module 750-630. If another mode of operation is
selected by changing the parameters, then the module behaves according to
the variation with the selected mode of operation.

The parameter dialog box in WAGO I/O CHECK 2 offers selection fields for
the available settings of this I/O module.

The following description is valid for software version 41.

Select box Available settings

Baudrate 1,0 MHz / 250,0kHz / 125,0 kHz* / 100,0 kHz /

83,0 kHz / 71,0 kHz / 62,5 kHz

PI-Length 0 Byte ... 24 Byte* ... 32 Byte (numeric input box)

Not used* Variable data frame not active Var. Frame

Length

1 Byte / ... /
32 Byte

Variable data frame length for the data
exchange between module and SSI
Transmitter Interface

Standard (see mapping-tables in the coupler- /

controller-manual)

Output format

Alternative* (see mapping-tables in the coupler- /

controller-manual)

Disable* Synchronous operating mode of the SSI

Transmitter Interface not active

Synchronous
Operation

Enable

Synchronous operating mode of the SSI
Transmitter Interface active
The data is sent synchronously with the
read cycle of the internal data bus.

Disable Gray-Dualcode conversion not active Gray-Dualcode

Conversion

Enable* Gray-Dualcode conversion active

Disable* Single-Turn evaluation not active Single-Turn

Evaluation

Enable Single-Turn evaluation active (13 Bit)

Disable Frame error not active Frame Error

Enable* Frame error active

After the last valid bit, a check is made
whether a zero signal is sent by the data
line.

750-630 (/xxx-xxx) [SSI Transmitter Interface] • 19
Adjustable Variation 750-630/003-000

WAGO-I/O-SYSTEM 750
I/O Modules

Select box Available settings

Disable* Power fail bit not active Power Fail Bit

(PFB)

Enable Power fail bit active

* default setting

More Information
Detailed Information about the parameterizing this module can be found in
the manual for the software tool WAGO-I/O-CHECK or in the Internet
under: http://www.wago.com .

20 • Use in Hazardous Environments

WAGO-I/O-SYSTEM 750
I/O Modules

3 Use in Hazardous Environments

The WAGO-I/O-SYSTEM 750 (electrical equipment) is designed for use in Zone 2
hazardous areas.

The following sections include both the general identification of components
(devices) and the installation regulations to be observed. The individual subsections
of the "Installation Regulations" section must be taken into account if the I/O module
has the required approval or is subject to the range of application of the ATEX
directive.

Use in Hazardous Environments • 21

WAGO-I/O-SYSTEM 750
I/O Modules

3.1 Marking Configuration Examples

3.1.1 Marking for Europe according to CENELEC and IEC

Figure 1: Side marking example for ATEX and IEC Ex approved I/O modules according to
CENELEC and IEC

Figure 2: Printing Text detail – Marking example for ATEX and IEC Ex approved I/O modules
according to CENELEC and IEC

Table 1: Description of marking example for ATEX and IEC Ex approved I/O modules according to
CENELEC and IEC

Printing on Text Description

DEMKO 08 ATEX 142851 X
IECEx PTB 07.0064X

Approval body and/or number of the examination

certificate
I M2 / II 3 GD Explosion protection group and Unit category
Ex nA Type of ignition and extended identification
IIC Explosion protection group
T4 Temperature class

22 • Use in Hazardous Environments

WAGO-I/O-SYSTEM 750
I/O Modules

Figure 3: Side marking example for Ex i and IEC Ex i approved I/O modules according to CENELEC
and IEC

Figure 4: Text detail – Marking example for Ex i and IEC Ex i approved I/O modules according to
CENELEC and IEC

Use in Hazardous Environments • 23

WAGO-I/O-SYSTEM 750
I/O Modules

Table 2: Description of marking example for Ex i and IEC Ex i approved I/O modules according to
CENELEC and IEC

Inscription text Description

TÜV 07 ATEX 554086 X
TUN 09.0001X

Approving authority or
certificate numbers

Dust

II Device group: All except mining
3(1)D Device category: Zone 22 device (Zone 20 subunit)
Ex Explosion protection mark
tD Protection by enclosure
[iaD] Approved in accordance with "Dust intrinsic safety"

standard

A22 Surface temperature determined according to

Procedure A, use in Zone 22
IP6X Dust-tight (totally protected against dust)
T 135°C Max. surface temp. of the enclosure (no dust bin)

Mining

I Device group: Mining
(M2) Device category: High degree of safety
[Ex ia] Explosion protection: Mark with category of type of

protection intrinsic safety: Even safe when two

errors occur
I Device group: Mining

Gases

II Device group: All except mining
3(1)G Device category: Zone 2 device (Zone 0 subunit)
Ex Explosion protection mark
nA Type of protection: Non-sparking operating

equipment
[ia] Category of type of protection intrinsic safety: Even

safe when two errors occur
IIC Explosion Group
T4 Temperature class: Max. surface temperature 135°C

24 • Use in Hazardous Environments

WAGO-I/O-SYSTEM 750
I/O Modules

3.1.2 Marking for America according to NEC 500

Figure 5: Side marking example for I/O modules according to NEC 500

Figure 6: Text detail – Marking example for I/O modules according to NEC 500

Table 3: Description of marking example for I/O modules according to NEC 500

Printing on Text Description

CL 1 Explosion protection group (condition of use

category)

DIV 2 Area of application (zone)
Grp. ABCD Explosion group (gas group)
Optemp code T4 Temperature class

Use in Hazardous Environments • 25

WAGO-I/O-SYSTEM 750
I/O Modules

3.2 Installation Regulations

In the Federal Republic of Germany, various national regulations for the
installation in explosive areas must be taken into consideration. The basis for this
forms the working reliability regulation, which is the national conversion of the
European guideline 99/92/E6. They are complemented by the installation regulation
EN 60079-14. The following are excerpts from additional VDE regulations:

Table 4: VDE Installation Regulations in Germany

DIN VDE 0100 Installation in power plants with rated voltages up to 1000 V
DIN VDE 0101 Installation in power plants with rated voltages above 1 kV
DIN VDE 0800 Installation and operation in telecommunication plants including

information processing equipment

DIN VDE 0185 lightning protection systems

The USA and Canada have their own regulations. The following are excerpts from
these regulations:

Table 5: Installation Regulations in USA and Canada

NFPA 70 National Electrical Code Art. 500 Hazardous Locations
ANSI/ISA-RP 12.6-1987 Recommended Practice
C22.1 Canadian Electrical Code

Notice the following points

When using the WAGO-I/O SYSTEM 750 (electrical operation) with Ex
approval, the following points are mandatory:

26 • Use in Hazardous Environments

WAGO-I/O-SYSTEM 750
I/O Modules

3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex
(acc. DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)

The fieldbus-independent I/O modules of the WAGO-I/O-SYSTEM 750-.../...-...
must be installed in an environment with degree of pollution 2 or better. In the final
application, the I/O modules must be mounted in an enclosure with IP 54 degree of
protection at a minimum with the following exceptions:

- I/O modules 750-440, 750-609 and 750-611 must be installed in an IP 64
minimum enclosure.

- I/O module 750-540 must be installed in an IP 64 minimum enclosure for 230
V AC applications.

- I/O module 750-440 may be used up to max. 120 V AC.

When used in the presence of combustible dust, all devices and the enclosure shall be
fully tested and assessed in compliance with the requirements of IEC 61241-0:2004
and IEC 61241-1:2004.

When used in mining applications the equipment shall be installed in a suitable
enclosure according to EN 60079-0:2006 and EN 60079-1:2007.

I/O modules fieldbus plugs or fuses may only be installed, added, removed or
replaced when the system and field supply is switched off or the area exhibits no
explosive atmosphere.

DIP switches, coding switches and potentiometers that are connected to the I/O
module may only be operated if an explosive atmosphere can be ruled out.

I/O module 750-642 may only be used in conjunction with antenna 758-910 with a
max. cable length of 2.5 m.

To exceed the rated voltage no more than 40%, the supply connections must have
transient protection.

The permissible ambient temperature range is 0 °C to +55 °C.

Use in Hazardous Environments • 27

WAGO-I/O-SYSTEM 750
I/O Modules

3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX
554086 X)

1. For use as Gc- or Dc-apparatus (in zone 2 or 22) the field bus independent I/O
modules WAGO-I/O-SYSTEM 750-*** shall be erected in an enclosure that
fulfils the requirements of the applicable standards (see the marking) EN
60079-0, EN 60079-11, EN 60079-15, EN 61241-0 and EN 61241-1. For use as
group I, electrical apparatus M2, the apparatus shall be erected in an enclosure
that ensures a sufficient protection according to EN 60079-0 and EN 60079-1
and the degree of protection IP64. The compliance of these requirements and
the correct installation into an enclosure or a control cabinet of the devices
shall be certified by an ExNB.

2. If the interface circuits are operated without the field bus coupler station type
750-3../…-… (DEMKO 08 ATEX 142851 X), measures must be taken outside
of the device so that the rating voltage is not being exceeded of more than 40%
because of transient disturbances.

3. DIP-switches, binary-switches and potentiometers, connected to the module
may only be actuated when explosive atmosphere can be excluded.

4. The connecting and disconnecting of the non-intrinsically safe circuits is only
permitted during installation, for maintenance or for repair purposes. The
temporal coincidence of explosion hazardous atmosphere and installation,
maintenance resp. repair purposes shall be excluded.

5. For the types 750-606, 750-625/000-001, 750-487/003-000, 750-484 the
following shall be considered: The interface circuits shall be limited to
overvoltage category I/II/III (non mains/mains circuits) as defined in IEC
60664-1.

6. For the type 750-601 the following shall be considered: Do not remove or
replace the fuse when the apparatus is energized.

7. The ambient temperature range is: 0°C ≤ Ta ≤ +55°C (for extended details
please note certificate).

28 • Use in Hazardous Environments

WAGO-I/O-SYSTEM 750
I/O Modules

8. The following warnings shall be placed nearby the unit:

Do not remove or replace fuse when energized!

If the module is energized do not remove or replace the fuse.

Do not separate when energized!

Do not separate the module when energized!

Separate only in a non-hazardous area!

Separate the module only in a non-hazardous area!

Use in Hazardous Environments • 29

WAGO-I/O-SYSTEM 750
I/O Modules

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

1. For use as Dc- or Gc-apparatus (in zone 2 or 22) the fieldbus independent I/O
modules WAGO-I/O-SYSTEM 750-*** shall be erected in an enclosure that
fulfils the requirements of the applicable standards (see the marking) IEC
60079-0, IEC 60079-11, IEC 60079-15, IEC 61241-0 and IEC 61241-1. For
use as group I, electrical apparatus M2, the apparatus shall be erected in an
enclosure that ensures a sufficient protection according to IEC 60079-0 and
IEC 60079-1 and the degree of protection IP64. The compliance of these
requirements and the correct installation into an enclosure or a control cabinet
of the devices shall be certified by an ExCB.

2. Measures have to be taken outside of the device that the rating voltage is not
being exceeded of more than 40% because of transient disturbances.

3. DIP-switches, binary-switches and potentiometers, connected to the module
may only be actuated when explosive atmosphere can be excluded.

4. The connecting and disconnecting of the non-intrinsically safe circuits is only
permitted during installation, for maintenance or for repair purposes. The
temporal coincidence of explosion hazardous atmosphere and installation,
maintenance resp. repair purposes shall be excluded.

5. For the types 750-606, 750-625/000-001, 750-487/003-000, 750-484 the
following shall be considered: The interface circuits shall be limited to
overvoltage category I/II/III (non mains/mains circuits) as defined in IEC
60664-1.

6. For the type 750-601 the following shall be considered: Do not remove or
replace the fuse when the apparatus is energized.

7. The ambient temperature range is: 0°C ≤ Ta ≤ +55°C (for extended details
please note certificate).

30 • Use in Hazardous Environments

WAGO-I/O-SYSTEM 750
I/O Modules

8. The following warnings shall be placed nearby the unit:

Do not remove or replace fuse when energized!

If the module is energized do not remove or replace the fuse.

Do not separate when energized!

Do not separate the module when energized!

Separate only in a non-hazardous area!

Separate the module only in a non-hazardous area!

Use in Hazardous Environments • 31

WAGO-I/O-SYSTEM 750
I/O Modules

3.2.4 Special conditions for safe use (ATEX Certificate DEKRA
11ATEX0203 X)

1. The components shall be installed in a suitable enclosure providing a degree of
protection of at least IP54 according to EN 60529, taking into account the
environmental conditions under which the equipment will be used.

2. When the temperature under rated conditions exceeds 70 °C at the cable or
conduit entry point, or 80 °C at the branching point of the conductors, the
temperature specification of the selected cable shall be in compliance with the
actual measured temperature values.

3. Provisions shall be made to prevent the rated voltages from being exceeded by
transient disturbances of more than 40 %.

4. Components may only be removed or inserted when the system supply and the
field supply are switched off, or when the location is known to be non­hazardous.

5. Fieldbus connectors may only be disconnected or connected when the system
supply is switched oft, or when the location is known to be non-hazardous.

6. The fuses, present in de the system modules 750-6xx may only be replaced
when the supply is switched off, or when the location is known to be non­hazardous.

7. Address selectors and ID switches may only be adjusted when the system
supply is switched off, or when the location is known to be non-hazardous.

8. The ambient temperature range is: 0°C ≤ Ta ≤ +55°C.

32 • Use in Hazardous Environments

WAGO-I/O-SYSTEM 750
I/O Modules

3.2.5 ANSI/ISA 12.12.01

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non­hazardous locations only.

This equipment is to be fitted within tool-secured enclosures only.

Explosion hazard!

Explosion hazard - substitution of components may impair suitability for Class I,
Div. 2.

Disconnect device when power is off and only in a non-hazardous area!

Do not disconnect equipment unless power has been switched off or the area is
known to be non-hazardous near each operator accessible connector and fuse
holder." When a fuse is provided, the following information shall be provided: “A
switch suitable for the location where the equipment is installed shall be provided
to remove the power from the fuse.”

For devices with Ethernet connectors:
”Only for use in LAN, not for connection to telecommunication circuits”.

Use only with antenna module 758-910!

Use Module 750-642 only with antenna module 758-910.

For Couplers/Controllers and Economy bus modules only: "The configuration
Interface Service connector is for temporary connection only. Do not connect or
disconnect unless the area is known to be nonhazardous. Connection or disconnection
in an explosive atmosphere could result in an explosion.

Devices containing fuses must not be fitted into circuits subject to over loads!

Devices containing fuses must not be fitted into circuits subject to over loads, e.g.
motor circuits!

Use in Hazardous Environments • 33

WAGO-I/O-SYSTEM 750
I/O Modules

Do not connect or disconnect SD-Card unless the area known to be free of
ignitable concentrations of flammable gases or vapors!

Do not connect or disconnect SD-Card while circuit is live unless the area is
known to be free of ignitable concentrations of flammable gases or vapors.

Additional Information

Proof of certification is available on request. Also take note of the information
given on the module technical information sheet. The Instruction Manual,
containing these special conditions for safe use, must be readily available to the
user.

WAGO Kontakttechnik GmbH & Co. KG
Postfach 2880 • D-32385 Minden
Hansastraße 27 • D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [e-mail]

Internet: http://www.wago.com