WAGO I/O-SYSTEM 750 User manual

WAGO-I/O-SYSTEM 750
Manual
750-461(/xxx-xxx)
2AI Pt100/RTD
2-
Channel Analog Input Module
for Resistance Sensors
Version 1.4.0

2 WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
© 2017 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
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
Table of Contents
1Notes about this Documentation................................................................. 5
1.1 Validity of this Documentation................................................................. 5
1.2 Copyright................................................................................................... 6
1.3 Symbols..................................................................................................... 7
1.4 Number Notation....................................................................................... 9
1.5 Font Conventions ...................................................................................... 9
2Important Notes ......................................................................................... 10
2.1 Legal Bases ............................................................................................. 10
2.1.1 Subject to Changes ............................................................................. 10
2.1.2 Personnel Qualifications..................................................................... 10
2.1.3 Use of the WAGO-I/O-SYSTEM 750 in Compliance
with Underlying Provisions................................................................ 10
2.1.4 Technical Condition of Specified Devices......................................... 11
2.2 Safety Advice (Precautions).................................................................... 12
3Device Description ..................................................................................... 14
3.1 View ........................................................................................................ 15
3.2 Connectors............................................................................................... 16
3.2.1 Data Contacts/Internal Bus................................................................. 16
3.2.2 Power Jumper Contacts/Field Supply ................................................ 17
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 Power Supply...................................................................................... 20
3.6.3 Communication .................................................................................. 20
3.6.4 Inputs .................................................................................................. 21
3.6.5 Climatic Environmental Conditions................................................... 22
3.6.6 Connection Type ................................................................................ 22
3.7 Approvals ................................................................................................ 23
3.8 Standards and Guidelines........................................................................ 25
4Process Image............................................................................................. 26
4.1 I/O Modules with Pt Resistance Sensors ................................................ 26
4.1.1 Pt100................................................................................................... 26
4.1.2 Pt1000................................................................................................. 27
4.1.3 Pt100 with Status Information for S5-FB250 in the Data Word........ 28
4.2 I/O Modules with Ni Resistance Sensors................................................ 29
4.2.1 Ni100 .................................................................................................. 29
4.2.2 Ni1000 TK6180.................................................................................. 30
4.2.3 Ni1000 TK5000.................................................................................. 31
4.3 I/O Modules for Resistance Measurement .............................................. 32
4.3.1 Resistance Measurement 10 Ohm to 1.2 kOhm ................................. 32
4.3.2 Resistance Measurement 10 Ohm to 5.0 kOhm ................................. 33

4 Table of Contents WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
4.4 Configurable I/O Module Fehler! Keine Dokumentvariable
verfügbar./003-000.................................................................................. 33
4.5 I/O Module for NTC Resistance Sensors................................................ 35
5Mounting..................................................................................................... 36
5.1 Mounting Sequence................................................................................. 36
5.2 Inserting and Removing Devices ............................................................ 37
5.2.1 Inserting the I/O Module .................................................................... 37
5.2.2 Removing the I/O Module.................................................................. 38
6Connect Devices ......................................................................................... 39
6.1 Connecting a Conductor to the CAGE CLAMP®................................... 39
6.2 Connection Examples.............................................................................. 40
6.2.1 2 × RTD, 2-Conductors ...................................................................... 40
6.2.2 2 × RTD, 3-Conductors ...................................................................... 40
7Use in Hazardous Environments .............................................................. 41
7.1 Marking Configuration Examples........................................................... 42
7.1.1 Marking for Europe According to ATEX and IEC-Ex ...................... 42
7.1.2 Marking for America According to NEC 500.................................... 47
7.2 Installation Regulations........................................................................... 48
7.2.1 Special Notes Regarding Explosion Protection.................................. 48
7.2.2 Special Notes Regarding ANSI/ISA Ex ............................................. 50
8Appendix..................................................................................................... 51
8.1 Configuration and Parameterization using a GSD File
with PROFIBUS DP and PROFINET IO ............................................... 51
8.1.1 2AI RTD Configuration ..................................................................... 51
8.1.1.1 PROFIBUS DP Fieldbus Couplers/Controllers 750-333(/0xx-000),
750-833(/0xx-000)......................................................................... 51
8.1.1.2 PROFINET IO Fieldbus Couplers 750-375(/025-000),
750-377(/025-000)......................................................................... 52
8.1.2 2AI RTD Parameterization................................................................. 52
8.1.2.1 All PROFIBUS DP and PROFINET IO Fieldbus
Couplers/Controllers...................................................................... 53
8.1.2.2 PROFIBUS DP Fieldbus Couplers/Controllers 750-333(/0xx-000),
750-833(/0xx-000)......................................................................... 54
8.1.2.3 PROFINET IO Fieldbus Couplers 750-375(/025-000),
750-377(/025-000)......................................................................... 55
List of Figures ...................................................................................................... 56
List of Tables........................................................................................................ 57

WAGO-I/O-SYSTEM 750 Notes about this Documentation 5
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
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 750-461
(2AI Pt100/RTD) and the variants listed in the table below.
Table 1: Variants
Item number/Variant
Designation
Pt-resistance sensors
750-461
2AI Pt100/RTD
750-461/000-003
2AI Pt1000/RTD
750-461/000-006
2AI Pt100/RTD/optimized temperature drift
750-461/000-200
2AI Pt100/RTD S5*)
*)
Adapted data format for S5-controller with functions block 250
750-461/025-000
2AI Pt100/RTD/T
Ni-resistance sensors
750-461/000-004
2AI Ni100/RTD
750-461/000-005
2AI Ni1000 TK6180/ RTD
750-461/000-009
2AI Ni1000 TK5000/ RTD
resistance measuring
750-461/000-002
2AI resistance measuring 10R-1k2
750-461/000-007
2AI resistance measuring 10R-5k0
Operating mode configurable with WAGO-I/O-CHECK
or PROFIBUS DP and PROFINET device description (GSD file)
750-461/003-000
2AI Pt100/free configurable
NTC- resistance sensors
750-461/020-000
2AI NTC 20k
Documentation Validity for Variants
Unless otherwise indicated, the information given in this documentation applies to
listed variants.

6 Notes about this Documentation WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
The I/O module 750-461 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 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-I/O-SYSTEM 750 Notes about this Documentation 7
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
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.

8 Notes about this Documentation WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
Additional Information:
Refers to additional information which is not an integral part of this
documentation (e.g., the Internet).

WAGO-I/O-SYSTEM 750 Notes about this Documentation 9
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
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 (.)
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:\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]

10 Important Notes WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
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.

WAGO-I/O-SYSTEM 750 Important Notes 11
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
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.

12 Important Notes WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
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.

WAGO-I/O-SYSTEM 750 Important Notes 13
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
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.

14 Device Description WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
3 Device Description
The 750-461 I/O module measures resistance at field level or evaluates platinum
or nickel resistance sensors.
The resistance values are converted into temperature values. A microprocessor in
the I/O module linearizes the measured resistance values and converts them into a
numeric value proportional to the temperature of the selected resistance sensor.
The WAGO-I/O-CHECK commissioning tool can be used to configure the
required operating mode. The I/O module can also be parameterized via
PROFIBUS and PROFINET device description (GSD file).
The parameterization description can be found in the appendix in Section
“Configuration and Parameterization via GSD File with PROFIBUS DP and
PROFINET IO.”
The module has two input channels allowing the direct connection of two 2- or
3-wire resistance sensors.
For example, two 3-wire sensors can be connected either to +R1, RL1 and −R1 or
to +R2, RL2 and −R2.
Each input channel of a module has a shield (screen) connection (S).
The shield connection is fed directly to the carrier rail and contact is made
automatically by snapping the module onto the rail.
The assignment of the connections is described in the “Connectors” section.
Connection examples are shown in section “Connect Devices” > … >
“Connection Example(s)”.
The operating status of the channels is indicated by a green status LED per
channel.
A red error LED per channel indicates a wire break, a short circuit or that the
signal is outside the measuring range.
The meaning of the LEDs is described in the “Display Elements” section.
Use a supply module!
Use a supply module for field-side power supply of downstream I/O modules.
The field voltage and the system voltage are electrically isolated from each other.
With consideration of the power jumper contacts, the individual modules can be
arranged in any combination when configuring the fieldbus node. An arrangement
in groups within the group of potentials is not necessary.
The I/O module 750-461 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).

WAGO-I/O-SYSTEM 750 Device Description 15
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
3.1 View
Figure 1: View
Table 4: Legend for Figure “View”
Pos.
Description
Details See Section
1
Marking possibility with
Mini-WSB
---
2
Status LEDs
“Device Description” > “Display Elements”
3
Data contacts
“Device Description” > “Connectors”
4
CAGE CLAMP®connectors
“Device Description” > “Connectors”
5
Release tab
“Mounting” > ”Inserting and Removing
Devices”

16 Device Description WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
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.

WAGO-I/O-SYSTEM 750 Device Description 17
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
3.2.2 Power Jumper Contacts/Field Supply
The I/O module 750-461 has no power jumper contacts.
3.2.3 CAGE CLAMP®Connectors
Figure 3: CAGE CLAMP®Connectors
Table 5: Legend for Figure „CAGE CLAMP®Connectors“
Channel
Designation
Connector
Function
1
+R1
1
Sensor 1: +R
RL1
2
Sensor 1: RL
−R1
3
Sensor 1: −R
Shield
4
Shield (screen)
2
+R2
5
Sensor 2: +R
RL2
6
Sensor 2: RL
−R2
7
Sensor 2: −R
Shield
8
Shield (screen)
Use shielded signal lines!
Only use shielded signal lines for analog signals and I/O modules which are
equipped with shield clamps. Only then can you ensure that the accuracy and
interference immunity specified for the respective I/O module can be achieved
even in the presence of interference acting on the signal cable.

18 Device Description WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
3.3 Display Elements
Figure 4: Display Elements
Table 6: Legend for Figure “Display Elements”
Channel
LED
State
Function
1 A
Off
No operational readiness or the internal data bus
communication is interrupted
Green
Operational readiness and trouble-free internal data bus
communication
1 B
Off
Normal operation
Red
750-461,
750-461/000-003, -004,
-005, -006, -009
/020-000, 025-000
Overrange/underflow of the
admissible measuring range,
broken wire
750-461/000-200
Overrange of the admissible
measuring range, broken wire
750-461/000-002
Overrange of the admissible
measuring range
750-461/000-007
Overrange of the admissible
measuring range
2 C
Off
No operational readiness or the internal data bus
communication is interrupted
Green
Operational readiness and trouble-free internal data bus
communication
2 D
Off
Normal operation
Red
750-461,
750-461/000-003, -004,
-005, -006, -009
/020-000, 025-000
Overrange/underflow of the
admissible measuring range,
broken wire
750-461/000-200
Overrange of the admissible
measuring range, broken wire
750-461/000-002
Overrange of the admissible
measuring range
750-461/000-007
Overrange of the admissible
measuring range

WAGO-I/O-SYSTEM 750 Device Description 19
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
3.4 Operating Elements
The I/O module 750-461 has no operating elements.
3.5 Schematic Diagram
Figure 5: Schematic Diagram

20 Device Description WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.0
3.6 Technical Data
3.6.1 Device Data
Table 7: Technical Data — Device
Width
12 mm
Height (from top edge of DIN-35 rail)
64 mm
Depth
100 mm
Weight
approx. 52.5 g
3.6.2 Power Supply
Table 8: Technical Data – Power Supply
Voltage Supply
via system voltage (DC/DC)
Current consumption, system voltage
typ.
(5 VDC)
80 mA
Current consumption, power jumper
contactmax.
(24 VDC)
---
Voltage via power jumper contacts
---
Current via power jumper contactsmax
---
Isolation (peak value)
500 V system/field side
Differing technical data (power supply) for the 750-461/020-000 model:
Table 9: Technical Data – Power Supply
Voltage Supply
via system voltage (DC/DC)
Current consumption, system voltage
typ.
(5 VDC)
65 mA
Current consumption, power jumper
contactmax.
(24 VDC)
---
Voltage via power jumper contacts
---
Current via power jumper contactsmax
---
Isolation (peak value)
500 V system/field side
3.6.3 Communication
Table 10: Technical Data, Communication
Data width, internal (internal data bus)
2-channel operation
2 × 16 bit data
2 × 8 bit control/status (optional)