Pepperl+Fuchs LB Series Manual
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Pepperl+Fuchs LB Series Manual

Pepperl+Fuchs LB Series Manual

Remote i/o system
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PROCESS AUTOMATION
MANUAL
LB Remote I/O System
Hardware

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Summary of Contents for Pepperl+Fuchs LB Series

  • Page 1 PROCESS AUTOMATION MANUAL LB Remote I/O System Hardware...
  • Page 2 LB Remote I/O System With regard to the supply of products, the current issue of the following document is ap- plicable: The General Terms of Delivery for Products and Services of the Electrical Indus- try, published by the Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the supplementary clause: "Expanded reservation of proprietorship"...

  • Page 3: Table Of Contents

    LB Remote I/O System Introduction................. 5 Content of this Document ..............5 Target Group, Personnel..............5 Symbols Used ..................6 Product Specifications............... 7 Prerequisites for Operating the Remote I/O Unit ......7 Introduction ..................7 System Components ................8 Backplanes ................... 9 2.4.1 Function .....................
  • Page 4 LB Remote I/O System Inserting and Removing Modules.............34 Installing the Separation Wall ............35 Field Wiring ..................37 Coding ....................39 Line Fault Detection ................39 Cold Junctions in Thermocouples............40 3.10 Line Resistance in Resistance Thermometers ........41 3.11 Strain Gauge Measurement ...............42 3.12 Status Monitoring of the Output Switch-off ........42 3.13 Redundancy ..................43 3.13.1 Basic Principles................

  • Page 5: Introduction

    LB Remote I/O System Introduction Introduction Content of this Document This document contains information required to use the finished device or system in the relevant phases of the product life cycle. This may include information on the following: Product identification ...

  • Page 6: Symbols Used

    LB Remote I/O System Introduction Symbols Used This document contains symbols for the identification of warning messages and of informative messages. Warning Messages You will find warning messages, whenever dangers may arise from your actions. It is mandatory that you observe these warning messages for your personal safety and in order to avoid property damage.

  • Page 7: Product Specifications

    LB Remote I/O System Product Specifications Product Specifications Prerequisites for Operating the Remote I/O Unit Note! Requirements for Equipment Protection Level Gc The LB remote I/O system must only be installed and operated if installed in a surrounding enclosure that complies with the requirements for surrounding enclosures in accordance with ...

  • Page 8: System Components

    LB Remote I/O System Product Specifications System Components System Overview Figure 2.1 LB remote I/O system components Fieldbus Connection Backplane Label carrier I/O module Separation wall I/O modules with intrinsically safe circuits Power supply Booster connection Connection for a 24 VDC auxiliary energy for 4-channel digital outputs LB6*10* ... LB6*15* Function switch Bus-independent deactivation of the I/O modules...

  • Page 9: Backplanes

    LB Remote I/O System Product Specifications Backplanes 2.4.1 Function Backplanes are used to hold com units, power supplies, and I/O modules. Fixed slots are reserved on the backplane for com units and power supplies. Slots for I/O modules have equal status, meaning functions can be arranged side by side as required.
  • Page 10 LB Remote I/O System Product Specifications LB9024S Extension backplane  Slots for max. 24 single-width or 12 dual-width I/O modules  Bus-independent deactivation of the I/O modules  24V DC booster S1 Schalter shut down extension unit - Erweiterungseinheit ext. 24V DC 27 28 29 30 31...
  • Page 11 LB Remote I/O System Product Specifications LB9027A Extension backplane  Slots for max. 16 single-width or 8 dual-width I/O modules  24V DC booster S1 Schalter shut down extension unit - Erweiterungseinheit 24V DC extension Figure 2.7 Dimensions of the LB9027A LB9029A Base backplane with slots for redundant com units ...

  • Page 12: Backplane Combinations

    LB Remote I/O System Product Specifications Side view with separation wall min. 165 min. 195 Figure 2.10 Side view of a populated backplane Label carrier I/O module Front connector Front connector with protective cover Field cable NS 35/15 DIN mounting rail Fieldbus connection (number of bus connections varies depending on backplane) Separation wall on the LB9182A 2.4.3...

  • Page 13: Backplane And Module Compatibility

    LB Remote I/O System Product Specifications 2.4.4 Backplane and Module Compatibility In principle, LB backplanes are compatible with all LB modules. Single-width I/O modules occupy one slot, while double-width I/O modules occupy two slots. However, please be aware of the following restrictions. Temporary Overload of the Power Supply To avoid an overload of the power supply in the startup phase as a result of increased startup currents, the number of certain I/O modules on the backplane is limited.

  • Page 14: Design And Dimensions

    LB Remote I/O System Product Specifications 2.5.2 Design and Dimensions Both single-width and dual-width modules are available. Com units and power supplies are always dual-width. I/O modules are single-width or dual-width depending on the model. Both the I/O modules and the com units and power supplies are equipped with LEDs on the front that display the device status.

  • Page 15: Accessories

    LB Remote I/O System Product Specifications Accessories 2.6.1 Bus Connection The following accessories are available for bus connections. The service bus connection is provided via a 9-pin sub-D connector for all backplanes. The way in which the fieldbus is connected depends on the bus system. Bus system Fieldbus connection PROFIBUS DP/DP-V1...

  • Page 16: Field Wiring

    LB Remote I/O System Product Specifications LB9003A Cable inlet at 90°  With connectible terminator  With connection for a bus monitor or a class 2 master  68.2 Figure 2.15 Dimensions of the LB9003A 2.6.2 Field Wiring The following accessories are available for field wiring. Terminal Blocks Terminal blocks are wired to the field devices, attached to the front sockets of the I/O modules, and tightened using the side screws.
  • Page 17 LB Remote I/O System Product Specifications Front Screw Terminals 21.7 Figure 2.17 Front screw terminal dimensions L = 33.3 mm for 6-pin terminal and 40.9 mm for 8-pin terminal Spring Terminals 20.8 Figure 2.18 Spring terminal dimensions L = 33.3 mm for 6-pin terminal and 40.9 mm for 8-pin terminal Spring Terminals for Single-Width I/O Modules with 2x8 Connections 19.2 20.6...
  • Page 18 LB Remote I/O System Product Specifications Cold Junctions Cold junctions have a prewired Pt100 thermocouple on plug openings 1 and 2 for numerically correcting the thermoelectric voltage. Cold junctions are available in green and blue. Use green cold junctions for non-intrinsically safe circuits and blue cold junctions for intrinsically safe circuits.
  • Page 19 LB Remote I/O System Product Specifications KF-CP Figure 2.23 KF-CP coding pins Watchdog Plugs The watchdog plug is used with digital outputs with a feedback input (LB2101A ... LB2113E). The watchdog plug sends the output signal from the I/O module back to its input channel, making it possible to check the function of the I/O module, as well as the communication between the process control system and the I/O module.
  • Page 20 LB Remote I/O System Product Specifications F-NR2-Ex1 1.5 kΩ 10 kΩ Zone 1, 2 Figure 2.26 Block diagram of the F-NR2-Ex1 resistor network 2.6.3 Separation between Intrinsically Safe and Non-Intrinsically Safe I/O Modules The separation wall is attached to the backplane between I/O modules with intrinsically safe circuits and I/O modules with non-intrinsically safe circuits to ensure a clearance of 50 mm between intrinsically safe circuits and other circuits.

  • Page 21: Switch Protection Cover Lb9181

    LB Remote I/O System Product Specifications 2.6.4 Switch Protection Cover LB9181 The switch protection cover protects the switches and wiring on the backplane against inadvertent intervention. The switch protection cover is plugged over the connections on the right side of the backplane and screwed tight using the two screws.

  • Page 22: Installation

    LB Remote I/O System Installation Installation Surrounding Enclosure Note! Requirements for Equipment Protection Level Gc The LB remote I/O system must only be installed and operated if installed in a surrounding enclosure that complies with the requirements for surrounding enclosures in accordance with ...

  • Page 23: Backplanes Lb9022* Bis Lb9029*(Except

    LB Remote I/O System Installation 3.3.1 Backplanes LB9022* bis LB9029* (except LB9022S, LB9024S, LB9022BP22320.1, LB9024BP24300.1) Danger! Risk of explosion Accessories such as plugs and terminators that do not meet the requirements for use in hazardous areas can cause explosive mixtures to ignite. Only use accessories approved for use in the respective environment.
  • Page 24 LB Remote I/O System Installation Pinning on Sub-D Plugs 9 8 7 6 5 4 3 2 1 Pin 1 Optional shield Pin 2 - Pin 3 (B) RxD/TxD-P (+) receive/send data P Pin 4 Optional control signal P Pin 5 GND reference potential Pin 6 + 5 V, only at the end of the line Pin 7 - Pin 8 (A) RxD/TxD-N (-) receive/send data N...
  • Page 25 LB Remote I/O System Installation X40: booster connection S1: function switch X3: bus-independent deactivation of the I/O modules X2: 24 VDC redundant power supply (SELV/PELV) X1: 24 VDC power supply (SELV/PELV) X40 Terminal Assignment Auxiliary energy for 4-channel digital outputs LB6*10* ... LB6*15* can be connected via the booster connection.
  • Page 26 LB Remote I/O System Installation S1.1 S1.2 S1.3 S1.4 Die Abschaltung der E/A-Module ist deaktiviert. Die Abschaltung der E/A-Module mit Abschalteingang wird durch einen potentialfreien Kontakt an X3 gesteuert. X3.1 = 0 V  Steuerklemme für alle E/A-Module mit Abschalteingang. X3.1 bis X3.3 für externen, potentialfreien Kontakt, galvanisch getrennt von anderen ...

  • Page 27: Backplanes Lb9022S, Lb9024S, Lb9022Bp22320.1

    LB Remote I/O System Installation 3.3.2 Backplanes LB9022S, LB9024S, LB9022BP22320.1, LB9024BP24300.1 Danger! Risk of explosion Accessories such as plugs and terminators that do not meet the requirements for use in hazardous areas can cause explosive mixtures to ignite. Only use accessories approved for use in the respective environment. Danger! Risk of Explosion Connecting and disconnecting from circuits such as terminals, plug-in jumpers or terminators...
  • Page 28 LB Remote I/O System Installation Pinning on Sub-D Plugs 9 8 7 6 5 4 3 2 1 Pin 1 Optional shield Pin 2 - Pin 3 (B) RxD/TxD-P (+) receive/send data P Pin 4 Optional control signal P Pin 5 GND reference potential Pin 6 + 5 V, only at the end of the line Pin 7 - Pin 8 (A) RxD/TxD-N (-) receive/send data N...
  • Page 29 LB Remote I/O System Installation X40: booster connection S1: function switch X3: bus-independent deactivation of the I/O modules X2: 24 VDC redundant power supply (SELV/PELV) X1: 24 VDC power supply (SELV/PELV) X40 Terminal Assignment Auxiliary energy for 4-channel digital outputs LB6*10* ... LB6*15* can be connected via the booster connection.

  • Page 30: Lb9035A

    LB Remote I/O System Installation Bereich Steckplätze LB9022S 3 ... 5 6 ... 10 11 ... 15 16 ... 20 21 ... 24 Steckplätze LB9024S 25 ... 29 30 ... 34 35 ... 39 40 ... 44 45 ... 48 S1-Schalter S1.1 S1.2...
  • Page 31 LB Remote I/O System Installation Figure 3.8 Connections X4: fieldbus connection Service bus connection X40: booster connection S1: function switch X3: bus-independent deactivation of the I/O modules X1: 24 VDC power supply (SELV/PELV) X4 Terminal Assignment X4.1 = - FF H1 ...
  • Page 32 LB Remote I/O System Installation Pinning on Sub-D Plugs 9 8 7 6 5 4 3 2 1 Pin 1 Optional shield Pin 2 - Pin 3 (B) RxD/TxD-P (+) receive/send data P Pin 4 Optional control signal P Pin 5 GND reference potential Pin 6 + 5 V, only at the end of the line Pin 7 - Pin 8 (A) RxD/TxD-N (-) receive/send data N...
  • Page 33 LB Remote I/O System Installation Caution! Damage to Equipment Handling the connections improperly can damage the backplane. Never supply a control voltage to X3.2 when the S1 switch is closed (S1.x = ON).  Only operate multiple adjacent backplanes using a common control voltage or a common ...

  • Page 34: Inserting And Removing Modules

    LB Remote I/O System Installation X1 Terminal Assignment X1.1 = 0 V  X1.2 = + 24 VDC (SELV/PELV)  X1.3 = earth  Inserting and Removing Modules Fixed slots are reserved on the backplane for com units and power supplies. Com units are equipped with mechanical coding pins on the underside of the enclosure to prevent these modules from being accidentally plugged into the slot of an I/O module.

  • Page 35: Installing The Separation Wall

    LB Remote I/O System Installation Installing the Separation Wall The separation wall is attached to the backplane between I/O modules with intrinsically safe circuits and I/O modules with non-intrinsically safe circuits to ensure a clearance of 50 mm between intrinsically safe circuits and other circuits. Mounting on a Backplane without a Label Carrier 1.
  • Page 36 LB Remote I/O System Installation Mounting on a Backplane with a Label Carrier 1. Cut off the pin that is located near the catch on the separation wall. 2. Hook the catch into the label carrier. 3. Insert the pin on the separation wall into the plastic holders on the backplane, ensuring the pin snaps into place.

  • Page 37: Field Wiring

    LB Remote I/O System Installation Field Wiring Danger! Risk of explosion Measuring instruments that do not meet the requirements for use in hazardous areas can cause explosive mixtures to ignite. Only use accessories and devices that are approved for use in the respective environment. Caution! Loss of intrinsic safety Circuits with the Ex i type of protection that have been operated with non-intrinsically safe...
  • Page 38 LB Remote I/O System Installation The following connection data applies in conjunction with the terminal blocks listed here: LB9007A, LB9009A, LB9013A ... LB9019A, LB9107A, LB9107P, LB9113A, LB9115A ... LB9119A, LB9124A ... LB9127A, LB9130A, LB9131A. Connection data for front screw terminals, screw terminals, and spring terminals Rigid conductor cross-section 0.14 mm ...

  • Page 39: Coding

    LB Remote I/O System Installation Coding You can code the front sockets of the I/O modules and terminals so that the terminals and the associated field devices can be assigned to exactly one front socket. Use the KF-CP coding pins for the following terminal blocks: LB9007A, LB9009A, LB9013A ... LB9019A, LB9107A, LB9107P, LB9113A, LB9115A ...

  • Page 40: Cold Junctions In Thermocouples

    LB Remote I/O System Installation LB2*  The valve control circuit is monitored by a current pulse. This current pulse is brief enough not to operate a connected valve. If the I/O module is being used with indicator lights or sounders, you can switch off the current pulse for each channel.

  • Page 41: Line Resistance In Resistance Thermometers

    LB Remote I/O System Installation 3.10 Line Resistance in Resistance Thermometers If you operate the LB5*01* and LB5*04* I/O modules in a 2-wire configuration, the line resistance amounts to that of a resistor connected in series to the sensor and affects the measurement result.

  • Page 42: Strain Gauge Measurement

    LB Remote I/O System Installation 3.11 Strain Gauge Measurement I/O modules LB4101* and LB5*02 can be interconnected for strain gauge measurements. Use analog output LB4101* to create a constant current, and the measuring input for temperature input LB5*02* to process the millivolt signal for the resulting bridge voltage. A constant current of 20 mA is sufficient to power a 350-...

  • Page 43: Redundancy

    LB Remote I/O System Installation 3.13 Redundancy 3.13.1 Basic Principles Redundancy is used when it is necessary to guarantee operation of a remote I/O station despite one or more components having failed. To build a redundant system, use backplanes LB9022* and LB9029A and equip these with two com units for com unit redundancy and three power supplies for power supply redundancy.

  • Page 44: Application Redundancy

    LB Remote I/O System Installation 3.13.3 Application Redundancy In application redundancy, the master has two redundant interfaces to allow it to access both the fieldbus and the redundant fieldbus. Both com units are active on both fieldbuses. However, internally only one com unit is active and controls the I/O modules. If a fieldbus cable or a com unit fails, a switchover to the redundant fieldbus cable will take place.
  • Page 45 LB Remote I/O System Installation Bus system Transfer rate Max. cable length MODBUS 1.2 kbit/s ... 9.6 kbit/s 1200 m 19.2 kbit/s 1200 m 38.4 kbit/s 1200 m 115.2 kbit/s 1000 m PROFIBUS DP 9.6 kbit/s 1200 m 19.2 kbit/s 1200 m 93.75 kbit/s 1200 m...

  • Page 46: Potential Equalization And Shielding

    LB Remote I/O System Installation Terminators The fieldbus must have exactly two terminators per segment, one at the start and one at the end. A segment usually starts at the master, while the last remote I/O station is taken to be the end of the segment.

  • Page 47: Wiring

    LB Remote I/O System Installation EMC filters are used in many devices to divert any interference to ground. For the sake of symmetry, all lines are provided with suitable capacitance. Capacitively coupled high- frequency interference is effectively canceled out by the symmetrical layout. Figure 3.19 EMC filters in signal paths The same applies to galvanically isolated signals.

  • Page 48: System Expansion

    LB Remote I/O System Installation Field Wiring Depending on the application, the shielding of the wiring must be grounded at one point or at both ends. If possible, avoid grounding at both ends to prevent ground loops and ensure the shielding is not used as a return line.

  • Page 49: Commissioning

    LB Remote I/O System Commissioning Commissioning Electrical Testing of Connections Make sure that the terminators have been properly fitted to the fieldbus and the service bus. See chapter 3.14 Test of Physical Connection Right to the End of the Segment Perform the measurements from the control room.

  • Page 50: Configuration

    The W&T RS-232-RS-485 interface converter can be connected to the remote I/O unit using either a preassembled or self-made cable. You can order the preassembled cable together with the W&T RS-232-RS-485 interface converter from Pepperl+Fuchs. Use the following wiring diagram if you intend to make your own cable.

  • Page 51: Startup Phase

    LB Remote I/O System Commissioning Figure 4.2 USB converter in device manager Startup Phase Do not start to operate all the remote I/O stations simultaneously; instead, connect each remote I/O station to the master in succession. Ensure that the master read cycle and the com unit watchdog are coordinated with one another.

  • Page 52: Operation

    LB Remote I/O System Operation Operation Danger! Risk of explosion If I/O modules are hot swapped, there is a risk of explosion due to sparks forming, since the connections on the backplane are not intrinsically safe. Before replacing I/O modules, make sure that the atmosphere is not potentially explosive, e.g., by obtaining a hot work permit.

  • Page 53: Troubleshooting

    LB Remote I/O System Troubleshooting Troubleshooting Danger! Risk of explosion When work is performed on the remote I/O unit in hazardous areas, there is a risk of explosion from spark formation. Before starting any work on the remote I/O unit, familiarize yourself with the instruction manuals for the components and their relevant certificates.
  • Page 54 LB Remote I/O System Troubleshooting Redundancy Faults Fault Remedy Continuous redundancy Check that the correct type of redundancy is selected (media redundancy or  switchover application redundancy). In the configuration software, check whether the master read cycle and the  com unit watchdog are coordinated with one another.
  • Page 55 PROCESS AUTOMATION – PROTECTING YOUR PROCESS Worldwide Headquarters Pepperl+Fuchs GmbH 68307 Mannheim · Germany Tel. +49 621 776-0 E-mail: info@de.pepperl-fuchs.com For the Pepperl+Fuchs representative closest to you check www.pepperl-fuchs.com/contact www.pepperl-fuchs.com Subject to modifications / DOCT-1130Q Copyright PEPPERL+FUCHS • Printed in Germany 07/2018...

This manual is also suitable for:

Lb9022 seriesLb9024sLb9026 seriesLb9025aLb9027aLb9023 series ... Show all

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