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Summary of Contents for Eaton 9372-FB-P Series
- Page 1 Instruction manual November 2016 MTL fieldbus networks INM 9370-RD Rev 5 9372-FB-Px-xx 5-spur redundant fieldbus barrier...
- Page 2 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 INM 9370-RD Rev 5...
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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. CAUTION Earlier models of the Fieldbus Barrier Module (9377-FB) that do not have the “-R”... -
Page 5: Overview
937X-FB-Px-yy Redundant Fieldbus Barrier 5-spur enclosures Figure 1.1 - Example of model 9372-FB-XX-SS OVERVIEW This manual explains the installation and maintenance procedures for the 9372-FB-xx-yy Redundant Fieldbus Barrier enclosures and must be read in association with the product datasheets that contain the electrical data. The 9372-FB-xx-yy Redundant Fieldbus Barriers are field-mounted wiring hubs that create five (or six*) intrinsically safe spur connections from a high-energy trunk, for connection to suitably certified F... -
Page 6: Description
DESCRIPTION General The standard models comprise a stainless steel or GRP , increased safety, Ex e enclosure, containing 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. Note: A redundant-capable version of the 9372-FB-Px-yy can also be supplied, part-populated with a single 6-spur module (order as model number 9375-FB-Px- yy). - Page 8 Figure 3.1 - External dimensions and mounting hole positions for the stainless steel enclosure Figure 3.2 - External dimensions and mounting hole positions for the GRP enclosure INM 9370-RD Rev 5...
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Page 9: Preparation
a) All the necessary gland holes have been prepared in the enclosure. One has a breather fitted and the others are fitted with appropriate blanking plugs. Where the blanking plugs are replaced by cable gland, the fitted glands must be Ex e certified and have an ingress protection (IP) rating that maintains the overall rating of the enclosure. -
Page 10: Initial Electrical Installation
After mounting the enclosure Check that: • it has not suffered any damage, • the IP rating is not affected; for example, by distortion of the enclosure, • 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 11 NOTE: Whichever method is used, it is important to connect the screen/shield to ground at one end of the cable only. The cable shield is normally electrically isolated from the protective earth ground, although the two may be deliberately interconnected in some grounding arrangements.
- Page 12 Non- intrinsically safe trunk 9372-FB 5/6-spur enclosure 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 9372-FB 5/6-spur enclosure Host Control System 9377-FB-R Fieldbus Barrier 9377-FB-R Fieldbus Barrier Fieldbus...
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Page 13: Trunk Connections
Note: After configuring the required grounding option, tighten all screw terminals to a recommended torque of 0.6 Nm. 4.2.3 Permitted enclosure combinations The maximum number of redundant intrinsically safe spurs that can be supported on a trunk segment is 12. The permitted enclosure combinations are shown in Figure 4.3. - Page 14 Position of Terminator Trunk Surge module module (optional) Cover retaining screw Slide protective cover in this direction to remove Trunk wiring terminals Protective ground stud Trunk cable entry area Enclosure wall Figure 4.4 - Trunk Termination Assembly (TTA) 1S 2S 3S 1–...
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Page 15: Trunk Terminator Module 9378-Ft
Note: Figure 4.5 shows the screw-terminal ‘-PS’ enclosure option, but the ‘-PC’ cage-clamp terminal arrangement is similar. Check Section 4.2.2 on page 8 to confirm that the chosen fieldbus-ground option is correctly wired, and adjust if necessary. a) Tighten the gland securing nut(s), ensuring that any cables are not strained. b) Replace the transparent protective cover over the terminal block and secure it with the retaining screw to a recommended torque of 0.6 Nm. -
Page 16: Blanking Plugs
4.6.2 Fitting FS32 Spur Surge modules Spur Surge modules are pluggable 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 module on carrier To fit an FS32: 1. -
Page 17: Final Checks
Final Checks Before replacing the lids on the enclosure, check: • that all cable glands and any blanking plugs are tightened securely. • that all cable glands are tightened to provide the required IP seal in accordance with gland installation instructions. •... - Page 18 5.2.1 Fitting and removal techniques The individual 9377-FB-R Redundant Fieldbus Barrier module(s) may be fitted or removed without isolating the trunk power. The trunk connections to the barrier module on the carrier have spark suppression by design and cannot cause ignition while they are being connected or disconnected.
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Page 19: Terminator And Trunk Surge Protection Modules
Key to symbols in the digram: Note: Only spur LEDs shown for clarity. = Active, healthy (solid) = Standby, failed (pulse) = Standby, healthy (pulse) Step 1 1. Spur #3 on Barrier A has failed and shows pulsing red. Control of this spur has transferred automatically to Spur 3 of Barrier B, which has changed from a flashing green to a solid green. -
Page 20: Spur Connections
5.3.1 Fitting and removal Both modules have connectors that are designed to prevent an ignition- capable spark when the module is installed or removed. The modules are not interchangeable but the method of installing and removal is the same. Do not use, or attempt to repair, a module that has any of the pins on its underside bent or damaged, because this might affect its safety and will invalidate the certification. -
Page 21: Trunk Connections
5.4.1 Removing a Spur Surge module & spur cable adjustment If an FS32 Spur Surge module needs to be removed from circuit, it will probably be necessary to increase the cable length inside the enclosure slightly to allow the spur wiring connector to be plugged into the circuit board. -
Page 22: Regular Maintenance Checks
Regular Maintenance checks Check the general condition of the installation occasionally to ensure that no deterioration has occurred. At least every two years (and more frequently for harsh, dusty or dirty environments) check: • the condition of all wire connections/terminations/screens. •... - Page 23 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. DO NOT ASSUME THE POWER LED INDICATES A VOLTAGE OF 16V OR MORE.
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Page 24: 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 25 Temperature transducer Temperature Alarm module internal temperature (same Block (TT) measurement as in the Resource block) Extended diagnostics Diagnosis Not used, but note that this block drives DI1 transducer Block (TED) and DI2 HMI transducer Block HMI (THMI) Not used (LCD) When supplied as part of a 9372-FB Redundant Fieldbus Barrier or separately as an 9379-ALM alarm module, the device’s alarm thresholds are pre-configured to...
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Page 26: Alarm Module Fitting Or Replacement
Alarm module fitting or replacement A standard 9372-FB enclosure is supplied with the Alarm module fitted and it is normally connected to Spur 6. The alarm module, when supplied as a separate item, is ready wired with two connectors, a (2-wire) blue connector for the fieldbus ‘Spur’ connection and a black (3-wire) connector for the ‘Alarm’... -
Page 27: 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 28: Repair
b) Care should be taken to limit dust accumulation on the exterior of the apparatus to a depth not exceeding 5mm. c) Maintenance of internal components while powered is limited to those actions permitted in Section 5 of this manual. Repair The modules used in this product cannot be repaired by the user and must be replaced with an equivalent certified product. -
Page 29: Appendix 1 - Enclosure Wiring Diagram
9 APPENDIX 1 - ENCLOSURE WIRING DIAGRAM Schematic wiring diagram for 9372-FB-Px-YY Note: Model 9375-FB-Px-YY does not include the Module B Fieldbus Barrier or the Alarm Module (9379-ALM) INM 9370-RD Rev 5... - Page 30 This page is left intentionally blank INM 9370-RD Rev 5...
- Page 31 This page is left intentionally blank INM 9370-RD Rev 5...
- Page 32 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...
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