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Installation Instructions
Original Instructions
FLEX I/O 8 Relay Output Modules
Catalog Numbers 1794-OW8, 1794-OW8XT
October
Topic
Summary of Changes
This publication contains the following new or updated information. This list includes substantive updates only and is not intended to reflect all changes.
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Table of Contents
Related Manuals for Rockwell Automation Allen-Bradley FLEX I/O
Summary of Contents for Rockwell Automation Allen-Bradley FLEX I/O
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Page 1: Table Of Contents
Installation Instructions Original Instructions FLEX I/O 8 Relay Output Modules Catalog Numbers 1794-OW8, 1794-OW8XT October Topic Page Summary of Changes Install Your Relay Output Module Simplified Schematic of the Relay Module Wiring to a 1794-TB2, 1794-TB3, or 1794-TB3S Terminal Base Unit Wiring to a 1794-TBN or 1794-TBNF Terminal Base Unit Install or Change a Fuse in the 1794-TBNF Specifications... - Page 2 Indien de apparatuur wordt gebruikt op een wijze die niet is gespecificeerd door de fabrikant, dan bestaat het gevaar dat de beveiliging van de apparatuur niet goed werkt. Rockwell Automation Publication 1794-IN019K-EN-P - March 2024...
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Page 3: Environment And Enclosure
Secure DIN rail to the mounting surface approximately every 200 mm (7.8 in.) and use end-anchors appropriately. Be sure to ground the DIN rail properly. See the Industrial Automation Wiring and Grounding Guidelines, Rockwell Automation publication 1770-4.1, for more information. - Page 4 2 environments. The enclosure must be accessible only by the use of a tool. • This equipment shall be used within its specified ratings defined by Rockwell Automation. • Transient protection shall be provided that is set at a level not exceeding 140% of the peak rated voltage value at the supply terminals to the equipment.
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Page 5: Install Your Relay Output Module
WARNING: Exposure to some chemicals may degrade the sealing properties of materials that are used in the following devices: Relay K1 through K8, Epoxy. We recommended that you periodically inspect these devices for any degradation of properties and replace the module if degradation is found. Rockwell Automation Publication 1794-IN019K-EN-P - March 2024... -
Page 6: Simplified Schematic Of The Relay Module
ATTENTION: Do not attempt to increase load current or wattage capability beyond the maximum rating by connecting 2 or more outputs in parallel. The slightest variation in relay switching time may cause one relay to momentarily switch the total load current. Rockwell Automation Publication 1794-IN019K-EN-P - March 2024... -
Page 7: Wiring To A 1794-Tb2, 1794-Tb3, Or 1794-Tb3S Terminal Base Unit
If continuing DC common to the next base unit, connect a jumper from terminal 33 (common) on this base unit to terminal 16 on the next base unit. Even numbered terminals 0...14 Odd numbered terminals 1...15 1794-TBN, 1794-TBNF Rockwell Automation Publication 1794-IN019K-EN-P - March 2024... -
Page 8: Install Or Change A Fuse In The 1794-Tbnf
Insert a 5 x 20 mm fuse (Littelfuse part number 239003, 3.0 A, 250V AC slow-blow) into the fuse holder. Replace the fuse holder by rotating the fuse holder back to vertical until it snaps into the locked position. Rockwell Automation Publication 1794-IN019K-EN-P - March 2024... -
Page 9: Specifications
North American temp code T5 – 1794-OW8 ATEX/UKEX temp code IECEx temp code (1) Use this Conductor Category information for planning conductor routing. See the Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1. Rockwell Automation Publication 1794-IN019K-EN-P - March 2024... -
Page 10: Environmental Specifications
±1 kV line-line(DM) and ±2 kV line-earth(CM) on signal ports IEEE C37.90.1: Oscillatory surge withstand 2.5 kV IEC 61000-4-6: Conducted RF immunity 10V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz Rockwell Automation Publication 1794-IN019K-EN-P - March 2024... -
Page 11: Additional Resources
1794-SG002 I/O modules, and accessories. Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 Provides general guidelines for installing a Rockwell Automation industrial system. Product Certifications website, rok.auto/certifications Provides declarations of conformity, certificates, and other certification details. Rockwell Automation Publication 1794-IN019K-EN-P - March 2024... -
Page 12: Rockwell Automation Support
Rockwell Automation maintains current product environmental compliance information on its website at rok.auto/pec. Rockwell Otomasyon Ticaret A.Ş. Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400 EEE Yönetmeliğine Uygundur Allen-Bradley, expanding human possibility, FactoryTalk, FLEX, FLEX I/O-XT, Rockwell Automation, and TechConnect are trademarks of Rockwell Automation, Inc.
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