WAGO 750-539 User manual

WAGO-I/O-SYSTEM 750
Manual
750-539
4DO 24V DC VALVE Ex i
4-Channel Digital Output Module DC 24 V, Valve Ex i
Version 1.0.1

2 WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
© 2016 WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [email protected]om
Web: http://www.wago.com
Technical Support
Phone: [phone] – 5 55
Fax: [phone] – 85 55
E-Mail: [email protected]om
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: [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 protected by trademark or patent.

WAGO-I/O-SYSTEM 750 Table of Contents 3
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
Table of Contents
1Notes 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....................................................................................... 8
1.6 Font Conventions ...................................................................................... 8
2Important 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 WAGO-I/O-SYSTEM 750 in Compliance
with Underlying Provisions.................................................................. 9
2.1.4 Technical Condition of Specified Devices......................................... 10
2.2 Safety Advice (Precautions).................................................................... 11
3Device Description ..................................................................................... 13
3.1 View ........................................................................................................ 14
3.2 Connectors............................................................................................... 15
3.2.1 Data Contacts/Internal Bus................................................................. 15
3.2.2 Power Jumper Contacts/Field Supply ................................................ 16
3.2.3 CAGE CLAMP®Connectors ............................................................. 17
3.3 Display Elements .................................................................................... 18
3.4 Operating Elements................................................................................. 19
3.5 Schematic Diagram ................................................................................. 19
3.6 Technical Data ........................................................................................ 20
3.6.1 Device Data ........................................................................................ 20
3.6.2 Supply................................................................................................. 20
3.6.3 Communication .................................................................................. 20
3.6.4 Outputs ............................................................................................... 21
3.6.5 Explosion Protection .......................................................................... 22
3.6.6 Connection Type ................................................................................ 23
3.6.7 Climatic Environmental Conditions................................................... 23
3.7 Approvals ................................................................................................ 24
3.8 Standards and Guidelines........................................................................ 25
4Process Image ............................................................................................. 26
5Mounting..................................................................................................... 27
5.1 Mounting Sequence................................................................................. 27
5.2 Inserting and Removing Devices ............................................................ 28
5.2.1 Inserting the I/O Module .................................................................... 28
5.2.2 Removing the I/O Module.................................................................. 29
6Connect Devices ......................................................................................... 30
6.1 Connecting a Conductor to the CAGE CLAMP®................................... 30
6.2 Power Supply Concept............................................................................ 31
6.2.1 Power Supply Concept in Marine Applications ................................. 33

4 Table of Contents WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
6.3 Tested Valves .......................................................................................... 35
6.4 Connection Example ............................................................................... 36
7Use in Hazardous Environments .............................................................. 37
7.1 Marking Configuration Examples........................................................... 38
7.1.1 Marking for Europe According to ATEX and IEC-Ex ...................... 38
7.1.2 Marking for America According to NEC 500.................................... 43
7.2 Installation Regulations........................................................................... 44
7.2.1 Special Conditions for Safe Use
(TÜV 14 ATEX 148929 X)................................................................ 45
7.2.2 Special Conditions for Safe Use
(ATEX Certificate TÜV 12 ATEX 106032 X) .................................. 46
7.2.3 Special Conditions for Safe Use
(IEC-Ex Certificate TUN 14.0035X) ................................................. 47
7.2.4 Special Conditions for Safe Use
(IEC-Ex Certificate IECEx TUN 12.0039 X) .................................... 48
7.2.5 Special Conditions for Safe Use
according to ANSI/ISA 12.12.01 ....................................................... 49
8Appendix..................................................................................................... 50
8.1 Rated Surge Voltage ............................................................................... 50
List of Figures ...................................................................................................... 51
List of Tables........................................................................................................ 52

WAGO-I/O-SYSTEM 750 Notes about this Documentation 5
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
1 Notes about this Documentation
Always retain this documentation!
This documentation is part of the product. Therefore, retain the documentation
during the entire service life of the product. Pass on the documentation to any
subsequent user. In addition, ensure that any supplement to this documentation is
included, if necessary.
1.1 Validity of this Documentation
This documentation is only applicable to the I/O module 750-539
(4DO 24V DC VALVE Ex i).
The I/O module 750-539 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.
1.2 Revision History
Document
Version
Device Version
Description of
Change
Hardware
1.0.0
01
First issue
1.0.1
01
In Section “Technical Data” output
characteristics and technical data added.
1.3 Copyright
This Manual, including all figures and illustrations, is copyright-protected. Any
further use of this Manual by third parties that violate pertinent copyright
provisions is prohibited. Reproduction, translation, electronic and phototechnical
filing/archiving (e.g., photocopying) as well as any amendments require the
written consent of WAGO Kontakttechnik GmbH & Co. KG, Minden, Germany.
Non-observance will involve the right to assert damage claims.

6 Notes about this Documentation WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
1.4 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.

WAGO-I/O-SYSTEM 750 Notes about this Documentation 7
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
Additional Information:
Refers to additional information which is not an integral part of this
documentation (e.g., the Internet).

8 Notes about this Documentation WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
1.5 Number Notation
Table 1: 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 (.)
1.6 Font Conventions
Table 2: Font Conventions
Font Type
Indicates
italic
Names of paths and data files are marked in italic-type.
e.g.: C:\Program Files\WAGO Software
Menu
Menu items are marked in bold letters.
e.g.: Save
>
A greater-than sign between two names means the selection of a
menu item from a menu.
e.g.: File > New
Input
Designation of input or optional fields are marked in bold letters,
e.g.: Start of measurement range
“Value”
Input or selective values are marked in inverted commas.
e.g.: Enter the value “4 mA” under Start of measurement range.
[Button]
Pushbuttons in dialog boxes are marked with bold letters in square
brackets.
e.g.: [Input]
[Key]
Keys are marked with bold letters in square brackets.
e.g.: [F5]

WAGO-I/O-SYSTEM 750 Important Notes 9
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
2 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.
2.1 Legal Bases
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.
2.1.2 Personnel Qualifications
All sequences implemented on WAGO-I/O-SYSTEM 750 devices may only be
carried out by electrical specialists with sufficient knowledge in automation. The
specialists must be familiar with the current norms and guidelines for the devices
and automated environments.
All changes to the coupler or controller should always be carried out by qualified
personnel with sufficient skills in PLC programming.
2.1.3 Use of the WAGO-I/O-SYSTEM 750 in Compliance with
Underlying Provisions
Fieldbus couplers, fieldbus controllers and I/O modules found in the modular
WAGO-I/O-SYSTEM 750 receive digital and analog signals from sensors and
transmit them to actuators or higher-level control systems. Using programmable
controllers, the signals can also be (pre-) processed.
The devices have been developed for use in an environment that meets the IP20
protection class criteria. Protection against finger injury and solid impurities up to
12.5 mm diameter is assured; protection against water damage is not ensured.
Unless otherwise specified, operation of the devices in wet and dusty
environments is prohibited.
Operating the WAGO-I/O-SYSTEM 750 devices in home applications without
further measures is only permitted if they meet the emission limits (emissions of
interference) according to EN 61000-6-3. You will find the relevant information
in the section “Device Description” > “Standards and Guidelines” in the manual
for the used fieldbus coupler/controller.

10 Important Notes WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
Appropriate housing (per 2014/34/EU) 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.
2.1.4 Technical Condition of Specified Devices
The devices to be supplied ex works are equipped with hardware and software
configurations, which meet the individual application requirements. WAGO
Kontakttechnik GmbH & Co. KG will be exempted from any liability in case of
changes in hardware or software as well as to non-compliant usage of devices.
Please send your request for modified and new hardware or software
configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

WAGO-I/O-SYSTEM 750 Important Notes 11
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
2.2 Safety Advice (Precautions)
For installing and operating purposes of the relevant device to your system the
following safety precautions shall be observed:
Do not work on devices while energized!
All power sources to the device shall be switched off prior to performing any
installation, repair or maintenance work.
Install the device only in appropriate housings, cabinets or in electrical
operation rooms!
The WAGO-I/O-SYSTEM 750 and its components are an open system. As such,
install the system and its components exclusively in appropriate housings,
cabinets or in electrical operation rooms. Allow access to such equipment and
fixtures to authorized, qualified staff only by means of specific keys or tools.
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.
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.
Clean only with permitted materials!
Clean soiled contacts using oil-free compressed air or with ethyl alcohol and
leather cloths.

12 Important Notes WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
Do not use any contact spray!
Do not use any contact spray. The spray may impair contact area functionality in
connection with contamination.
Do not reverse the polarity of connection lines!
Avoid reverse polarity of data and power supply lines, as this may damage the
devices involved.
Avoid electrostatic discharge!
The devices are equipped with electronic components that may be destroyed by
electrostatic discharge when touched. Please observe the safety precautions
against electrostatic discharge per DIN EN 61340-5-1/-3. When handling the
devices, please ensure that environmental factors (personnel, work space and
packaging) are properly grounded.

WAGO-I/O-SYSTEM 750 Device Description 13
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
3 Device Description
The I/O module 750-539 (4DO 24V DC VALVE Ex i) outputs binary signals to
actuators in Zone 0 and 1 in the hazardous area. Intrinsically safe valves can be
directly controlled. Binary signals are initiated by a higher order control system.
Installation only in zone 2 or in non-hazardous environments!
The installation of the WAGO-I/O-SYSTEM 750 fieldbus couplers/controllers
and I/O modules is only to be done in zone 2 or in non-hazardous environments.
The I/O module has 4 output channels, providing a direct intrinsically safe
connection to 2-wire actuators (e.g., intrinsically safe valves). A coil for a valve
can be connected at each output.
The actuators are connected to the CAGE CLAMP®terminals DO 1 and 0 V,
DO 2 and 0 V, DO 3 and 0 V and DO 4 and 0 V.
The assignment of the connections is described in the “Connectors” section.
Connection examples are shown in section “Connecting Devices” > … >
“Connection Example(s)”.
The I/O module outputs provide high-side switching. If the signal status of an
output channel is at “high” the 24 V potential for field power will be switched to
the appropriate output connection.
A green LED indicates the switched status of each channel.
Any configuration of the I/O module is possible within an intrinsically safe
segment when configuring the fieldbus node. An arrangement in groups within the
group of potentials is not necessary.
The I/O module 750-539 can be used with all fieldbus couplers/controllers of the
WAGO-I/O-SYSTEM 750.
The meaning of the LEDs is described in the “Display Elements” section.
The Ex i I/O module receives the 24V voltage supply for the field level from an
upstream Ex i I/O module or from an Ex i power supply module 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.
The field voltage and the system voltage are electrically isolated from each other.

14 Device Description WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
3.1 View
Figure 1: View
Table 3: Legend for Figure “View”
Pos.
Description
Details See Section
1
Marking possibility with Mini-
WSB
---
2
Status LEDs
“Device Description” > “Display Elements”
3
Data contacts
“Device Description” > “Connectors”
4
CAGE CLAMP®connectors
“Device Description” > “Connectors”
5
Power jumper contacts
“Device Description” > “Connectors”
6
Release tab
“Mounting” > “Inserting and Removing
Devices”

WAGO-I/O-SYSTEM 750 Device Description 15
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
3.2 Connectors
3.2.1 Data Contacts/Internal Bus
Communication between the fieldbus coupler/controller and the I/O modules as
well as the system supply of the I/O modules is carried out via the internal bus. It
is comprised of 6 data contacts, which are available as self-cleaning gold spring
contacts.
Figure 2: Data Contacts
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!
Ensure that the environment is well grounded!
The devices are equipped with electronic components that may be destroyed by
electrostatic discharge. When handling the devices, ensure that the environment
(persons, workplace and packing) is well grounded. Avoid touching conductive
components, e.g. data contacts.

16 Device Description WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
3.2.2 Power Jumper Contacts/Field Supply
Risk of injury due to sharp-edged blade contacts!
The blade contacts are sharp-edged. Handle the I/O module carefully to prevent
injury.
The I/O module 750-539 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 blade contacts and those on the right side as spring
contacts.
Figure 3: Power Jumper Contacts
Table 4: Legend for Figure “Power Jumper Contacts”
Contact
Type
Function
1
Spring contact
Potential transmission (Uv) for field supply
2
Spring contact
Potential transmission (0 V) for field supply
3
Blade contact
Potential feed-in (0 V) for field supply
4
Blade contact
Potential feed-in (Uv) for field supply
Do not exceed maximum current via power contacts!
The maximum current available from the 750-606 or 750-625/000-001 Ex-i
Supply Module is 1 A.
When configuring the system, ensure that this current is not exceeded. If
exceeded, an additional potential feed module must be used.

WAGO-I/O-SYSTEM 750 Device Description 17
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
3.2.3 CAGE CLAMP®Connectors
Figure 4: CAGE CLAMP®Connectors
Table 5: Legend for Figure “CAGE CLAMP®Connectors“
Channel
Designation
Connector
Function
1
DO 1 1 Output DO 1: Signal voltage
0 V 2 Output DO 1: Field supply 0 V
2
DO 2 9 Output DO 2: Signal voltage
0 V 10 Output DO 2: Field supply 0 V
3
0 V 3 Output DO 3: Field supply 0 V
DO 3 4 Output DO 3: Signal voltage
4
0 V 11 Output DO 4: Field supply 0 V
DO 4 12 Output DO 4: Signal voltage

18 Device Description WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
3.3 Display Elements
Figure 5: Display Elements
Table 6: Legend for Figure “Display Elements”
Channel
Desig-
nation
LED State Function
1
State
DO 1 A
off Output DO 1: Signal voltage (0)
green Output DO 1: Signal voltage (1)
Diagnostic
DO 1 C
off Output DO 1: No error
red Output DO 1: Short circuit or
wire break
2
State
DO 2 E
off Output DO 2: Signal voltage (0)
green Output DO 2: Signal voltage (1)
Diagnostic
DO 2 G
off Output DO 2: No error
red Output DO 2: Short circuit or
wire break
3
State
DO 3 B
off Output DO 3: Signal voltage (0)
green Output DO 3: Signal voltage (1)
Diagnostic
DO 3 D
off Output DO 3: No error
red Output DO 3: Short circuit or
wire break
4
State
DO 4 F
off Output DO 4: Signal voltage (0)
green Output DO 4: Signal voltage (1)
Diagnostic
DO 4 H
off Output DO 4: No error
red Output DO 4: Short circuit or
wire break

WAGO-I/O-SYSTEM 750 Device Description 19
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
3.4 Operating Elements
The I/O module 750-539 has no operating elements.
3.5 Schematic Diagram
Figure 6: Schematic Diagram

20 Device Description WAGO-I/O-SYSTEM 750
750-539 4DO 24V DC VALVE Ex i
Manual
Version 1.0.1
3.6 Technical Data
3.6.1 Device Data
Table 7: Technical Data ‒ Device
Width
24 mm
Height (from upper edge of 35 DIN rail)
68 mm
Depth
100 mm
Weight
87.5 g
3.6.2 Supply
Table 8: Technical Data ‒ Supply
Voltage supply
Via system voltage terminal bus
(5 VDC) and power contacts (24 VDC)
Current consumption system voltage
typ
(5 VDC)
20 mA
Current consumption system voltage
max
(5 VDC)
25 mA
Power consumption system voltage
max
(5 VDC)
125 mW
Current consumption power jumper
contacts typ (24 VDC)
10 mA / module + load
Current consumption power jumper
contacts max (24 VDC)
15 mA / module + load
Power consumption power jumper
contacts max (24 VDC)
360 mW + output load
Voltage via power jumper contacts
24 VDC (Supply via Ex i-supply
module Uo= max. 27.3 V)
Current via power contacts max.
1 A
Power loss P
V
2.86 W
(at an output current of 47 mA each)
Power consumption P
max.
4.86 W
(at an output current of 47 mA each)
Isolation (peak value)
375 V (system/supply)
3.6.3 Communication
Table 9: Technical Data ‒ Communication
Internal bit width (terminal bus)
4 bits out, 4 bits in (Diagnostic)