Eaton Crouse-Hinds Series Instruction Manual
5-spur, open frame, redundant fieldbus barrier
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Summary of Contents for Eaton Crouse-Hinds Series
- Page 1 Instruction manual November 2016 MTL fieldbus networks INM 9380-RD Rev 2 9387-FB-Px-R 5-spur, Open Frame, Redundant Fieldbus Barrier...
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Page 2: Declaration Of Conformity
DECLARATION OF CONFORMITY A printed version of the Declaration of Conformity has been provided separately within the original shipment of goods. However, you can find a copy of the latest version at http://www.mtl-inst.com/certificates INM9380-RD Rev 2... -
Page 3: Table Of Contents
CONTENTS DECLARATION OF CONFORMITY ............II GENERAL SAFETY INFORMATION . -
Page 4: General Safety Information
No changes to any of the components that might impair their explosion protection are permitted. If any information provided here is not clear: • Contact Eaton’s MTL product line or one of its representatives. Note: Improper installation and operation of the enclosure can result in the invalidation of the guarantee. INM9380-RD Rev 2... -
Page 5: Overview
9387-FB-Px-R 5-Spur Open-Frame Redundant Fieldbus Barrier Figure 1.1 - Example of model 9387-FB-Px-R OVERVIEW This manual explains the installation and maintenance procedures for the 9387-FB-Px-R Open-Frame Redundant Fieldbus Barrier and must be read in association with the product datasheet that contains the electrical data. The 9387-FB-Px-R assembly is a wiring hub that creates five* intrinsically safe spur connections from a high-energy trunk, for connection to suitably certified F ™... -
Page 6: Description
DESCRIPTION General The assembly consists of a stainless steel baseplate, together with a trunk-wiring terminal assembly (TTA), two carrier-mounted fieldbus barriers and a fieldbus alarm module. Each barrier module can convert a single, non-intrinsically safe fieldbus trunk into six, galvanically isolated, intrinsically safe (IS) spur connections for connection to ™... -
Page 7: Trunk Terminal Assembly
Consequently, if a spur ‘fail-over’ occurs, an alarm is signalled quickly to the host, via the fieldbus connection, to facilitate any necessary remedial action. The five remaining spurs are available to the user for connection to field devices. Trunk Terminal Assembly The incoming trunk wiring is terminated inside a separate compartment, called the Trunk Terminal Assembly (TTA), that contains increased safety (Ex e) trunk wiring terminals. -
Page 8: Preparation
c) An assembly has limited ingress protection and must be provided with protection appropriate to the environment in which it is located. The following table provides guidance on minimum environmental protection for specific locations. Location Minimum environmental protection Safe area IP20 Ex e or Ex d certified enclosure;... -
Page 9: Initial Electrical Installation
After mounting the assembly check that: • none of the component parts have suffered any damage, • the baseplate of the assembly is not distorted • the mounting bolts/nuts are all tightened as recommended above. INITIAL ELECTRICAL INSTALLATION WARNING! Before starting any electrical installation work, ensure that the incoming trunk connection is isolated from any source of power. - Page 10 4.2.2 Cable shield ground The cable shield is normally electrically isolated from the protective earth ground, although the two may be deliberately interconnected in some grounding arrangements. The cable shield wiring of both the trunk and spur cables should be connected to the local terminals marked with an ‘S’.
- Page 11 Non- intrinsically safe trunk 9387-FB-R 5-spur, open frame assembly Host Control System 9377-FB-R Fieldbus Barrier 9377-FB-R Fieldbus Barrier Fieldbus module module Power Supply (5/6-spur) (5/6-spur) Intrinsically Alarm module safe spur Fieldbus instruments Non- intrinsically safe trunk 9387-FB-R 5-spur, open frame assembly Host Control System...
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Page 12: Trunk Connections
With this arrangement, the fieldbus trunk shield is separated from the spur cable shields. It should be adopted if plant or local regulations require that the spur cable shields be grounded at the Fieldbus Barrier. For this arrangement, connect the carrier shield ground wire (marked A) into Terminal 3. - Page 13 Position of Position of Trunk Surge Trunk Terminator module module (optional) (if required) Cover retaining screw Trunk wiring terminals Slide protective Carrier cover in this direction to remove Trunk cable entry area Protective Baseplate Trunk cable ground edge grommets stud Figure 4.4 - Trunk Termination Assembly (TTA) 1S 2S 3S 1–...
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Page 14: Trunk Terminator Module 9378-Ft
b) The trunk cable(s), which will be free of any armouring and presented as a shielded pair, should be fed through the supplied grommet, which should have been cut cleanly with a sharp knife to ensure that the IP30 rating for the TTA will be maintained. -
Page 15: Final Checks
4.6.2 Fitting FS32 spur surge-protection modules FS32 modules are pluggable surge-protection units that integrate easily with the standard pluggable connector and which direct excessive spur surge currents to the protective local ground. Figure 4.7 - FS32 spur surge-protection module fitted on spur connector To fit an FS32: 1. -
Page 16: Maintenance
MAINTENANCE When the enclosure is installed in a hazardous area it is important for personnel to understand what activities are permissible when fieldbus power is present and what are not. WARNING! Read and understand what work is permitted on the equipment. Failure to comply with these instructions can endanger the lives or health of personnel and risk damage to the plant and the environment. - Page 17 a) Engage the locating guides (A) of the 9377-FB-R Fieldbus Barrier module into the sockets provided on the carrier and push the module fully into place. b) Tighten the three captive fixing screws (C & D) to a recommended torque of 0.9Nm to secure it.
- Page 18 To restore Barrier A to the “active” mode, press the B > A fail-over button located beside Barrier B. Control of all spurs now returns to Barrier A while Barrier B goes into “standby” mode. * NOTE Operating the fail-over buttons will not allow active spurs to be transfered to a missing or failed barrier module.
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Page 19: Spur Connections
5.2.3.1 Mounting a module Refer to Figure 5.4. Orientate the module so that the smaller front clip is facing the user, then: • lower the module so that the safety retaining clip on the TTA housing fits into the loop on the module •... -
Page 20: Trunk Connections
Trunk connections WARNING! No part of the Trunk Terminal Assembly may be worked while the assembly is powered, unless the environment is known to be non- hazardous. Before any work starts on the Trunk Terminal Assembly the trunk power to the enclosure must be isolated, or a gas clearance certificate obtained. -
Page 21: Troubleshooting
TROUBLESHOOTING The Redundant Fieldbus Barriers are fitted with LED indicators to assist the user in fault identification. Consult the following tables to understand the meaning of the LED states. Power LED (Green) Trunk power applied Insufficient or no trunk power NOTE The Power LED will not light until the voltage at the barrier has risen to a value of at least 15.7V, but could remain lit even after the voltage has dropped to around 13.0V. -
Page 22: Alarm Module - Operation & Configuration
ALARM MODULE - OPERATION & CONFIGURATION Introduction As with all redundant systems, early notification of the failure of a system component is important so that the fault can be rectified before a second fault is allowed to occur. A second fault is likely to interrupt the process, so restoring redundant operation is vital in maintaining high levels of system availability. -
Page 23: Alarm Module Fitting Or Replacement
7.2.1 DI Function Blocks: failure alarm status of 9377-FB-R barrier modules The two discrete input blocks conform to FF standard FF891 and are used by the TTH300 for cyclic reading out of extended diagnostics information. For the MTL redundant Fieldbus Barrier, the output of the blocks indicate the health of the 9377-FB-R barrier modules as follows: Digital Input (DI) Block 1: Output false (0):... - Page 24 NOTE It is permitted for the alarm module to be removed or installed while the enclosure is powered because all its connections are rated “intrinsically safe”. 7.3.1 To remove the alarm module: 1. Loosen the two captive securing screws on the blue (spur) connector and extract the connector - repeat for the black (alarm) connector.
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Page 25: Atex Information
ATEX INFORMATION The Essential Health and Safety Requirements (Annex II) of the EU Directive 2014/34/ EU [the ATEX Directive - safety of apparatus] requires that the installation manual of all equipment used in hazardous areas shall contain certain information. This annex is included to ensure that this requirement is met. -
Page 26: Inspection And Maintenance
Inspection and maintenance a) Inspection and maintenance should be carried out in accordance with European, national and local regulations which may refer to the IEC standard IEC 60079-17 . In addition specific industries or end users may have specific requirements which should also be met. -
Page 27: Appendix 1 - Enclosure Wiring Diagram
9 APPENDIX 1 - ENCLOSURE WIRING DIAGRAM Schematic wiring diagram for 9387-FB-Px-R INM9380-RD Rev 2... - Page 28 MTL Instruments GmbH, Heinrich-Hertz-Str. 12, 50170 Kerpen, Germany UNITED ARAB EMIRATES Cooper Industries/Eaton Corporation Tel: +49 (0)22 73 98 12 - 0 Fax: +49 (0)22 73 98 12 - 2 00 Office 205/206, 2nd Floor SJ Towers, off. Old Airport Road, E-mail: csckerpen@eaton.com...