Summary of Contents for Allen-Bradley ControlNet 1786-6.2.1
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Allen-Bradley Planning and ControlNet Coax Cable Installation System (Cat. No. 1786-6.2.1) Manual...
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Reproduction of the contents of this copyrighted publication, in whole or in part, without written permission of Allen-Bradley Company, Inc., is prohibited. Throughout this manual we use notes to make you aware of safety...
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We assume that you have a fundamental understanding of electronics and electrical codes. Abbreviations Abbreviation Means PVC cable polyvinyl chloride cable FEP cable fluorinated ethylene propylene cable PLC processor Allen-Bradley programmable logic controller network continues (other nodes not shown) Publication 1786-6.2.1 - April 1998...
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About This Manual Related Publications Publication Publication Number ControlNet Cable System Component List AG-2.2 Industrial Automation Wiring and Grounding Guidelines 1770-4.1 ControlNet Communication Interface User Manual 1770-6.5.20 (parallel/serial interface, 1770-KFC) ControlNet 1771 Adapter Module User Manual 1771-6.5.110 1771-ACN(R) Installation Instructions 1771-6.5.124 ControlNet Communication Interface Card Installation 1784-5.20...
1RGHV DUH GHILQHG DV SK\VLFDO GHYLFHV FRQQHFWLQJ WR WKH &RQWURO1HW FDEOH V\VWHP WKDW UHTXLUH D QHWZRUN DGGUHVV LQ RUGHU WR IXQFWLRQ RQ WKH QHWZRUN 40953 For information on purchasing these components see the Allen-Bradley ControlNet Cable System Component List (publication AG-2.2). Publication 1786-6.2.1 - April 1998...
Chapter Planning A ControlNet Cable System 8VH WKLV FKDSWHU WR GHWHUPLQH \RXU QHWZRUN UHTXLUHPHQWV Contents To determine: See page: how many taps you need how to connect your programming device what type of cable you need trunk-cable section lengths determine how many terminators you need if you need repeaters what type of connectors you need 2-12...
Planning A ControlNet Cable System 7KH &3 FDEOH FDQ EH SOXJJHG LQWR DQ\ &RQWURO1HW Important: SURGXFW¶V 1$3 WR SURYLGH SURJUDPPLQJ FDSDELOLW\ RQ WKH &RQWURO1HW QHWZRUN $ SURJUDPPLQJ WHUPLQDO FRQQHFWHG WKURXJK WKLV FDEOH LV FRXQWHG DV D QRGH DQG PXVW KDYH D XQLTXH DGGUHVV Using a 1784-KTCX15 communication card on coax media Using a 1784-KTCX15 communication card and NAP...
Planning A ControlNet Cable System <RX QHHG WR LQVWDOO UHSHDWHUV LI \RXU V\VWHP UHTXLUHV PRUH WKDQ Determining If You Need WDSV SHU VHJPHQW RU D ORQJHU WUXQN FDEOH WKDQ WKH Repeaters VSHFLILFDWLRQV DOORZ Repeater 1000 (3280) Required 750 (2460) 500 (1640) Repeater not Required...
Planning A ControlNet Cable System 7KH IROORZLQJ GLDJUDP VKRZV D SRVVLEOH FRQILJXUDWLRQ IRU SRZHULQJ D EDFNXS UHSHDWHU LQ \RXU &RQWURO1HW QHWZRUN ,Q WKLV GLDJUDP WKH EDFNXS UHSHDWHU ZLOO EH DFWLYDWHG ZKHQ WKH SULPDU\ UHSHDWHU LV IDXOWHG This diagram shows a possible configuration for powering a backup repeater in your ControlNet network.
1786-TCAP node right angle (jack-to-plug) provide a 90û bend in your cable (prevent bending your See the Allen-Bradley cable excessively). ControlNet Cable System Component List See Chapter 3 for the bend radius specification.
Planning A ControlNet Cable System 2-19 Ordering Parts Item Cat. No. Guidelines Quantity needed straight T-tap 1786-TPS You need a tap for each connection to the number of repeaters x 2 straight Y-tap 1786-TPYS trunk cable (nodes and repeaters). right angle T-tap 1786-TPR Each tap kit contains: two BNC connector number of nodes...
Chapter Installing A ControlNet Cable System Contents Follow the instructions in this chapter to install your ControlNet cable system. See page: install the trunk cable mount the taps install a repeater install cable connectors connect cable segments 3-18 terminate the segment 3-18 connect devices 3-19...
Installing A ControlNet Cable System Mounting The Taps To mount the taps you: • select where you want to mount the taps • mount the taps Selecting Where To Mount The Taps • There is no spacing requirement between taps; you can install two adjacent taps if necessary by using a barrel connector (1786-BNCP).
Use four screws to attach the universal mounting Mount the universal bracket to another mounting bracket on mounting surface. specified Allen-Bradley mounting rails or DIN rails #3 universal mounting bracket style symmetrical (35mm X 7.5mm) DIN rail suitable fixture...
Installing A ControlNet Cable System Mounting A Tap Through The Body Holes Mount the tap to a suitable fixture using: screws and flat washers body holes body holes You can use a tie wrap variety of screw types. 20083-m ATTENTION: Do not over tighten the screws. Over tightening the screws can damage the tap.
Programmable Controllers, Part 2 - Equipment Requirements and Tests. For specific information that the above norm requires, see the appropriate sections in this manual, as well as the following Allen-Bradley publications: • Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 •...
Installing A ControlNet Cable System Mounting The Repeater Use these mounting dimensions to mount the repeater horizontally or vertically in the area you selected. 19.3 mm 38.1mm 9.1mm (0.76") 8.6 mm 9.3 mm (0.36") (1.50") (0.34") (0.38") 215.9mm (8.5") 197.6 mm 196.6mm (7.78") (7.74")
Installing A ControlNet Cable System Connecting Power And Relay Circuitry Remove the terminal strip cover. 20743a-m Connect power to the repeater. 1786-RPT 1786-RPTD L2/N 20744-m If you are using high voltage DC to power the 1786-RPT, L1 is positive (+) and L2/N is negative (-). Using the fault relay terminals? Go to step: Publication 1786-6.2.1 - April 1998...
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Installing A ControlNet Cable System Connect your relay circuitry to the fault relay terminals. contact held closed in normal operation L2/N 20145-m Replace the terminal strip cover. 20746-m Publication 1786-6.2.1 - April 1998...
Installing A ControlNet Cable System Installing Cable Connectors After you have mounted the taps, you need to attach cable connectors to the ends of your trunk-cable sections. See page: collect your tools strip the cable 3-10 test for electrical shorts and continuity 3-14 attach the cable connectors 3-15...
3-10 Installing A ControlNet Cable System Stripping The Cable When cutting cable sections, make them long enough to route from one tap to the next with sufficient slack so that the bend radius is not less than: • 76.2mm (3”) for wiring external to enclosures •...
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Installing A ControlNet Cable System 3-11 Lock the cable into place by moving the chamber-gauge ring forward until it meets the cable with slight resistance. This guage moves two rollers toward the cable and regulates the depth of the cut. The gauge will "click"...
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3-12 Installing A ControlNet Cable System After you have moved the chamber gauge ring to the last position and turned the strip tool the final time: A. move the chamber-gauge ring backward to release the strip tool, and remove it from the cable. B.
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Installing A ControlNet Cable System 3-13 If you are using plenum FEP cable, cut off an additional 3.1mm (approximately 1/8”) of the outer sheath with the knife from the toolkit. all 4 shield layers— braid/tape/braid/tape white insulation or 1st tape center conductor sheath...
3-14 Installing A ControlNet Cable System Testing For Electrical Shorts And Continuity Using an ohmmeter or continuity tester, test for a short between the center conductor and the shield. If resistance reading Then: ohmmeter indicates: there is no short continue to step 2 that a short exists inspect the ends of the cable for shorted circuits—...
Installing A ControlNet Cable System 3-15 Attaching The Connectors To The Cable Slip the crimp ferrule onto the cable. Push it back to the sheath area of the cable to keep it out of the way for the moment. crimp ferrule stripped cable 20077a Place the center pin over the center conductor.
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3-16 Installing A ControlNet Cable System Move the connector in a circular motion (without any inward pressure) to work the connector base underneath the three outer shields. Once a gap has opened up between the inner shield tape and the three outer shields, start applying inward pressure to seat the connector base under the three outer shields (braid/tape/braid).
Installing A ControlNet Cable System 3-17 Testing For Electrical Shorts and Continuity Using an ohmmeter or continuity tester, test for a short between the connector body and pin. If resistance reading Then: indicates: there is no short continue to next section ohmmeter that a short exists use your wire cutters to cut off the connector,...
3-18 Installing A ControlNet Cable System Connecting Cable Sections Connect the cable sections to the tap’s BNC connectors. 20078 Terminating Segments The taps on the ends of the segment have only one cable connector attached to them. This leaves an open, or unterminated, end on the segment.
A to channel A on the your device • from trunk cable B to channel B on the your device 1 While both channels are active, Allen-Bradley recommends using channel A for non-redundant media. Connecting Programming Terminals Through NAP Use the ControlNet™...
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3-20 Installing A ControlNet Cable System Connect the other end of the 1786-CP cable to the NAP on the ControlNet communication interface installed in (or connected to) your programming terminal. ATTENTION: Do not use the 1786-CP cable as shown below. These connections could result in network failures.
Installing A ControlNet Cable System 3-21 Connecting The Repeater To A ControlNet Link Remove (and save) the dust cap located on the straight or right-angle connector of the designated tap on the first segment (segment 1). ATTENTION: Do not allow any metal portions of the tap to contact any conductive material.
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3-22 Installing A ControlNet Cable System Remove (and save) the dust cap located on the straight or right-angle connector of the designated tap on the second segment (segment 2). segment 2 dust cap 20093-i Connect this tap’s straight or right-angle connector to the BNC connector on the repeater.
Appendix Mounting Dimensions Contents Use these mounting dimensions to mount your taps, universal mounting brackets, and repeaters. Taps Make copies of these templates as necessary to help you mark placement for your taps. Y-tap T-tap 35.66 mm 30.23 mm (1.40") (1.19") 15.24 mm 15.24 mm...
Mounting Dimensions Universal Mounting Bracket 58.42 mm (2.30") 49.53 mm (1.95") 15.47 mm (0.609") 30.94 mm 19.05 mm (0.75") (1.128") 9.53 mm (0.375") 20170-m Repeater 19.3 mm (0.76") 38.1 mm 9.1 mm 8.6 mm 9.3 mm (1.50") (0.36") (0.34") (0.38") 215.9 mm (8.5") 196.6 mm...
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Index grounding, 3-6 installed in parallel, 2-9 universal mounting bracket installed in series, 2-8 mounting dimensions, A-2 installed in series and parallel, 2-10 L1 and L2/N, 3-7 low voltage directive, 3-5 wiring mounting dimensions, 3-6 external to enclosures, 2-15, 3-1 selecting where to mount, 3-5 inside enclosures, 2-15, 3-1 using as a backup, 2-6...
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What is unclear? Sequence What is not in the right order? Other Comments Use back for more comments. Your Name Location/Phone Return to: Marketing Communications, Allen-Bradley Co., 1 Allen-Bradley Drive, Mayfield Hts., OH 44124-6118Phone: (440)646-3176 FAX: (440)646-4320 Publication ICCG-5.21-August1995 PN955107-82...
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