Related Manuals for Eaton MTL 9491-PS
Summary of Contents for Eaton MTL 9491-PS
- Page 1 Instruction manual October 2016 MTL intrinsic safety solutions INM MTL 9491-PS Rev 3 MTL 9491-PS Intrinsically safe power supply...
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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 INM9491 Rev 3... -
Page 3: Table Of Contents
CONTENTS DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II FEATURES . - Page 4 This page left intentionally blank INM9491 Rev 3...
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Page 5: Features
9491-PS IS Power Supply INM9491 Rev 3 FEATURES ♦ Isolated power supply ♦ Zone 2 and Division 2 mountable ♦ DIN-rail or backplane mounting ♦ ATEX / IECEx approvals ♦ FM (USA & Canada) approved ♦ 200mA @10.9V DC - Ex ia IIB Groups C, D output ♦... - Page 6 Hazardous area Safe area Zone 0 Figure 2 .1 Zone 0 Ex ia IIB application – 946x-ET Vs– device See connection tables Hazardous area Safe area Zone 1 – Figure 2 .2 Zone 1 Ex ib IIB 946x-ET device application Vs–...
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Page 7: Din-Rail Installation Method
Mount the 9491-PS power supplies on low-profile (7mm) or high-profile (15mm) type T35 (top-hat) DIN- rail to EN50022, BS5584, DIN46277; this is available from Eaton, in 1 metre lengths (THR2 DIN rail). It is recommended that, in normal practice, the DIN rail is earthed to ensure personnel safety in the event of mains being put accidentally on the rail. - Page 8 3 .2 . 1 Mounting power supplies on DIN rail Clip power supplies onto type T35 DIN rail as shown in Figure 3.2, with the blue signal plugs facing towards the hazardous-area wiring. To remove an power supply from the rail, insert a screwdriver blade into the clip as shown and lever the clip gently outwards;...
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Page 9: Power Bus - Installation And Use
Finishing Wire up individual power supplies in accordance with wiring schedules. Daisy-chain power supply connections between individual power plugs or use the power bus (see section 4.1). Segregate hazardous- and safe-area wiring into separate trunking or looms wherever possible to avoid errors and maintain a tidy installation. -
Page 10: Earth Rail And Tagging Accessories
3 .4 Earth rail and tagging accessories This section explains how to specify and assemble earth rail and tagging strip accessories for the 9491-PS power supplies. The accessories consist of mounting brackets, earth rails, tagging strips and associated parts. They provide facilities for earthing, terminating cable screens and tagging (identifying) the positions of individual units. - Page 11 THR2 TGL57 TAG57 ERB57S IMB57 Snap off extension when using IMB57 as central support ERB57 10mm Earth 14mm clamp Earth-rail clamp ETM7 Push ERL7 fastener ERB57S in upper ERB570 position ERB57S in lower ERL7 position IMB57 ETM7 TGL57 HAZ1-3 HAZ4-6 TAG57 Figure 3 .4: Assembly drawing showing part numbers Figure 3 .5: Mounting details...
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Page 12: Assembly
3 .5 Assembly 3 .5 . 1 Fitting earth rails a) In upper position Before fitting insulating mounting blocks IMB57, check that the swing nuts in the base of each unit are turned back into the moulding. Locate the mounting blocks on the DIN rail in the chosen position and tighten the screws (see figure 3.11). - Page 13 3 .5 .3 Completed assemblies Figure 3.12 illustrates a complete assembly of 9491-PS power supplies using the accessories mentioned above. The broken-line boxes either side of the assembly represent cable trunking, and the accompanying dimensions represent the minimum spacing between trunking and assemblies. Figure 3 .12: 9491-PS power supplies-...
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Page 14: Backplane Mounting Method
BACKPLANE MOUNTING METHOD The alternative to DIN-rail mounting is to use a standard MTL backplane that accommodates 8 modules with 24V dc dual redundant power supplies. In applications where a number of backplanes are installed, the power supply can be interconnected. Optional earth-rail and tagging-strip kits are available for the backplanes. - Page 15 M4 x 20mm Fixing Screws screw(1) G-section G-section T-section Locking washer (2) T-section End stop (13) (12) (13) (12) MTL4500 (11) Plain washer (3) backplane Mounting hole A M4 x 10mm spacer(5) Retaining Washer (6) Figure 4 .2: Surface mounting procedure Figure 4 .5: Mounting end stops onto DIN rail Centre A Centre A...
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Page 16: Backplanes - Identification And Tagging
4 .3 . 1 Surface mounting – with kit SMS01 See Figures 4.1 and 4.2. a) Select four M4 x 20mm screws. b) Prepare holes in the surface at centres A, tapping these if retaining nuts are not required (Figure 4.1). c) Place a locking washer (2) and a plain washer (3) over each M4 x 20mm screw (1) (Figure 4.2). - Page 17 Tagging strip Retaining PWR1 PWR2 – tie (7) Primary Secondary Power Power Supply Supply SKT 1 SKT 2 0V PWR1 0V PWR2 Figure 4 .11: Power supply connections Figure 4 .8: Attaching and swivelling a tagging-strip P W R 1 Plastic rivet (7) Earth rail (5) Earth rail...
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Page 18: Backplanes - Earth Rails
4 .5 Backplanes - earth rails Optional earth rails are available for backplanes (kit ERK08). Cable screens from hazardous-area circuits, or spare pairs from a multicore cable, are connected to the terminals on the earth rails, which are mounted on the backplane at about the same height as the front of the modules, close to the hazardous- area connectors. - Page 19 12mm Figure 4 .13: Wiring hazardous-area power output plugs Figure 4 .15: Fitting power supplies to backplane Hazardous area power connectors Haz 4-6 Status ib IIB LEDs Haz 1-3 output Serial ia IIB number output Latching mechanism Safe area power connector Figure 4 .14: Key elements of the 9491-PS power supply Figure 4 .16: Removing power supplies from backplane INM9491 Rev 3...
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Page 20: Environmental
ENVIRONMENTAL Operating Temperature 0°C…+70°C Storage Temperature –20°C…+70°C Humidity 5…95% RH, non condensing WASTE REMOVAL INFORMATION The electronic equipment within must not be treated as general waste. By ensuring that this product is disposed of correctly you will be helping to prevent potentially negative consequences for the environment and human health, which could otherwise be caused by incorrect waste handling of this product. -
Page 21: Fm Certification Information
FM CERTIFICATION INFORMATION Special Condition of Use - Factory Mutual USA 1. In Class I, Division 2 installations, the subject equipment shall be mounted within a tool-secured enclosure which is capable of accepting one or more of the Class I, Division 2 wiring methods specified in the National Electrical Code ANSI/NFPA 70. - Page 22 b) Unless already protected by design, this equipment must be protected by a suitable enclosure against: i) mechanical and thermal stresses in excess of those noted in the certification documentation and the product specification. ii) aggressive substances, excessive dust, moisture and other contaminants. c) This apparatus is intrinsically safe electrical apparatus and is normally mounted in a safe area.
- Page 23 Figure 8 .1 9491-PS product label INM9491 Rev 3...
- Page 24 Replace this page with the PDF of the FM/FMc (Hazardous location) Control Drawing INM9491 Rev 3...
- Page 25 Replace this page with the PDF of the FM/FMc (Non-Hazardous location) Control Drawing INM9491 Rev 3...
- Page 26 Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283 right to make design changes. THE AMERICAS: E-mail: mtlenquiry@eaton.com +1 800 835 7075 www.mtl-inst.com mtl-us-info@eaton.com © 2016 Eaton All Rights Reserved ASIA-PACIFIC: +65 6 645 9888 Publication No. INM MTL 9491-PS Rev 3 131016 sales.mtlsing@eaton.com October 2016...