Related Manuals for Allen-Bradley 1794-IA8
Summary of Contents for Allen-Bradley 1794-IA8
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Page 1: Table Of Contents
Installation Instructions Original Instructions FLEX I/O AC Digital Input Modules Catalog Numbers 1794-IA8, 1794-IA8I, 1794-IA16 Topic Page Important User Information Environment and Enclosure North American Hazardous Location Approval Prevent Electrostatic Discharge Installing Your AC Digital Input Module Configuring Your AC Input Module... -
Page 2: Important User Information
FLEX I/O AC Digital Input Modules Important User Information Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid-state Controls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://www.rockwellautomation.com/literature/) describes some important differences between solid- state equipment and hard-wired electromechanical devices. -
Page 3: Environment And Enclosure
FLEX I/O AC Digital Input Modules Environment and Enclosure ATTENTION: This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in EN/IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating. This equipment is not intended for use in residential environments and may not provide adequate protection to radio communication services in such environments. -
Page 4: North American Hazardous Location Approval
FLEX I/O AC Digital Input Modules North American Hazardous Location Approval The following modules are North American Hazardous Location approved: 1794-IA8, 1794-IA8I, 1794-IA16. The Following Information Applies When Informations sur l’utilisation de cet équipement en Operating This Equipment In Hazardous Locations. -
Page 5: Prevent Electrostatic Discharge
FLEX I/O AC Digital Input Modules Prevent Electrostatic Discharge ATTENTION: This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential static. •... - Page 6 FLEX I/O AC Digital Input Modules WARNING: • When you insert or remove the module while backplane power is on, an electric arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. Repeated electric arcing causes excessive wear to contacts on both the module and its mating connector.
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Page 7: Installing Your Ac Digital Input Module
FLEX I/O AC Digital Input Modules Installing Your AC Digital Input Module Description Description Keyswitch Alignment bar Terminal base Groove Flexbus connector Latching mechanism Module The module mounts on a 1794 terminal base. ATTENTION: During mounting of all devices, be sure that all debris (metal chips, wire strands, etc.) is kept from falling into the module. - Page 8 (7) is locked into the module. Connecting Wiring for the 1794-IA8 1. For 1794-TB2, 1794-TB3, or 1794-TB3S – Connect individual input wiring to even-numbered terminals on the 0...15 row (A) as indicated in Wiring Connections for 1794-IA8 table.
- Page 9 6. If continuing AC common to the next base unit, connect a jumper from terminal 33 (120V common L2) on this base unit to terminal 16 on the next base unit. Wiring Connections for 1794-IA8 1794-TB2, 1794-TB3, 1794-TB3S 1794-TBN Input...
- Page 10 Connect 120V AC common L2 to terminal B-16 Use B-33 and C-51 for daisychaining to the next terminal base unit (Terminals C-35 thru C-50 not available on the 1794-TB2.) 1794-TBN Terminal Base Wiring for 1794-IA8 and 1794-IA16 Even Numbered I/O Terminals 0 thru 14 (1794-TBN shown)
- Page 11 FLEX I/O AC Digital Input Modules the 34...51 row (C) as indicated in the Terminal Base Wiring for 1794- IA16 table. 2. For 1794-TB3 or 1794-TB3S – Connect the associated 120V AC power lead (L1) of the input device to the corresponding terminals on the 34...51 row (C) for each input as indicated in the Terminal Base Wiring for 1794-IA16...
- Page 12 FLEX I/O AC Digital Input Modules Terminal Base Wiring for 1794-IA16 Input Terminal Input Terminal Input 120V AC Supply (L1) 1794-TB3, 1794-TB3S 1794-TBN Input 9 C-44 Input 10 A-10 B-10 C-45 Input 11 A-11 C-11 C-46 Input 12 A-12 B-12 C-47 Input 13 A-13...
- Page 13 FLEX I/O AC Digital Input Modules 2. For 1794-TB2, 1794-TB3, or 1794-TB3S – Connect the associated 120V AC common (L2) of the isolated supply to the corresponding odd-numbered terminals on the 0...15 row A for each input as indicated in the Wiring Connections for 1794-IA8I table. For 1794-TBN –...
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Page 14: Configuring Your Ac Input Module
L2 = 120V AC common - Connect to odd numbered terminals on row (C) Configuring Your AC Input Module Image Table Memory Map for the 1794-IA8 and 1794-IA8I Modules 15 14 13 12 11 10 9 17 16 15 14 13 12 11 10 7... - Page 15 FT = Input filter time Setting the Input Filter Time You can increase the input filter time (FT) for channels 00...07 (1794-IA8 and 1794-IA8I) and channels 00...15 (1794-IA16) by setting the corresponding bits in the output image table (complementary word) for the module.
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Page 16: Specifications
Filter time 5 8 ms Filter time 6 16 ms 24.5 Filter time 7 32 ms 60.5 Specifications Specifications – 1794-IA8, 1794-IA8I Attribute 1794-IA8 1794-IA8I Number of inputs 8, nonisolated 8, isolated 1794-TBN, 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBKD, 1794- Recommended terminal base unit... - Page 17 FLEX I/O AC Digital Input Modules Specifications – 1794-IA8, 1794-IA8I Attribute 1794-IA8 1794-IA8I On-state current, max 14.32 mA Off-state voltage, max 43V AC Off-state current, min 2.9 mA Nominal input impedance 10.6 kΩ Nominal input current 12 mA @ 120V AC...
- Page 18 = 5 mA leak (2) Auxiliary terminal strips are required when using the 1794-TBN. General Specifications Attribute 1794-IA8, 1794-IA8I 1794-IA16 Terminal base screw torque Determined by installed terminal base Dimensions, approx. (H x W x D) 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.)
- Page 19 FLEX I/O AC Digital Input Modules Environmental Specifications Attribute 1794-IA8, 1794-IA8I 1794-IA16 IEC 60068-2-1 (Test Ad, operating cold), IEC 60068-2-2 (Test Bd, operating dry heat), Operating temperature IEC 60068-2-14 (Test Nb, operating thermal shock): -20…55 °C (-4…131 °F) 0…55 °C (32…131 °F)
- Page 20 10V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz Certifications Certifications (When Product Value is Marked) (1794-IA8, 1794-IA8I only) UL Listed Industrial Control Equipment. See UL File E65584. (1794-IA16 only) c-UL-us UL Listed Industrial Control Equipment, certified for US and Canada.
- Page 21 FLEX I/O AC Digital Input Modules Certifications Certifications (When Product Value is Marked) Korean Registration of Broadcasting and Communications Equipment, compliant with: • Article 58-2 of Radio Waves Act, Clause 3 • Russian Customs Union TR CU 020/2011 EMC Technical Regulation •...
- Page 22 FLEX I/O AC Digital Input Modules Notes: Rockwell Automation Publication 1794-IN102D-EN-P - July 2018...
- Page 23 FLEX I/O AC Digital Input Modules Rockwell Automation Support Use the following resources to access support information. Knowledgebase Articles, How-to Videos, Technical Support www.rockwellautomation.com/ FAQs, Chat, User Forums, and Product knowledgebase Center Notification Updates. Local Technical www.rockwellautomation.com/global/ Support Phone Locate the phone number for your country. support/get-support-now.page Numbers Find the Direct Dial Code for your product.
- Page 24 Rockwell Automation maintains current product environmental information on its website at http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page. Allen-Bradley, Rockwell Automation, FLEX I/O, Rockwell Software, and TechConnect are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies. Rockwell Otomasyon Ticaret A.Ş., Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400...