Table of Contents
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Installation Instructions
Original Instructions
FLEX I/O 2-input Frequency Modules
Catalog Numbers 1794-IJ2, 1794-IJ2XT
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.
Topic
Updated template
Removed discontinued Catalog Number 1794-IJ2K
Updated Environment and Enclosure
Updated European and IEC Hazardous Location Approvals
Updated Special Conditions for Safe Use
Updated temp codes
Updated environmental specifications
Updated certifications
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Table of Contents
Related Manuals for Rockwell Automation Allen-Bradley 1794-IJ2
Summary of Contents for Rockwell Automation Allen-Bradley 1794-IJ2
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Page 1: Table Of Contents
Installation Instructions Original Instructions FLEX I/O 2-input Frequency Modules Catalog Numbers 1794-IJ2, 1794-IJ2XT Topic Page Summary of Changes Environment and Enclosure Prevent Electrostatic Discharge European Hazardous Location Approval North American Hazardous Location Approval Install Your Frequency Input Module Connecting Wiring for the 1794-TB3G and 1794-TB3GS Terminal Base Unit Resolution and Accuracy Interpret Status Indicators Diagnostics... - 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-IN049E-EN-P - May 2022...
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Page 3: Environment And Enclosure
Secure DIN rail to 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: European Hazardous Location Approval
• This equipment shall be used within its specified ratings defined by Rockwell Automation. • Provision shall be made to prevent the rated voltage from being exceeded by transient disturbances of more than 140% of the peak rated voltage when applied in Zone 2 environments. -
Page 5: Install Your Frequency Input Module
ATTENTION: To reduce susceptibility to noise, power analog modules and digital modules from separate power supplies. Do not exceed a length of 3 m (9.8 ft) for DC power cabling. ATTENTION: Do not daisy chain power or ground from this terminal base unit to any AC or DC digital module terminal base units. Rockwell Automation Publication 1794-IN049E-EN-P - May 2022... - Page 6 (5) Add external resistor from 24V to F (A-6) or G (A-9) for wire-off detection (0.4 mA). (6) Add jumper between 50 mV and RET (frequency - channel 0 = A-4…A-3; channel 1 = A-11…A-12) Rockwell Automation Publication 1794-IN049E-EN-P - May 2022...
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Page 7: Resolution And Accuracy
CH 1 Diagnostic Status Diagnostic Status Reserved Reserved Channel 0 Channel 1 Reserved Where: GS = Gate state F/A = Frequency/Accel alarm WO = Wire-off alarm MPA = Missing pulse alarm R = Reserved Rockwell Automation Publication 1794-IN049E-EN-P - May 2022... -
Page 8: Interpret Status Indicators
The indicator turns red in about 1.5 s if there is an internal diagnostics error. The module is operating correctly when the green OK indicator is on. A red OK indicator shows that the module is in a Faulted condition (internal error). Rockwell Automation Publication 1794-IN049E-EN-P - May 2022... -
Page 9: Diagnostics
32,767 Hz or 3,276.7 Hz (overange). The % Full Scale calculation (based on Max Frequency) is > 3,276.7%. 1010...1111 10...15 = Not used Diagnostic Status - indicates the response from the module; a normal or non-normal operating condition. Rockwell Automation Publication 1794-IN049E-EN-P - May 2022... -
Page 10: Specifications
Outputs individually assignable to: Frequency, % Full Scale, or Acceleration Alarm Triggered by frequency alarm or acceleration alarm Output switching time Turn on: Less than 0.5 ms Turn off: Less than 1 ms Rockwell Automation Publication 1794-IN049E-EN-P - May 2022... - Page 11 IEC 60068-2-6 (Test Fc, Operating): Vibration 5 g @ 10…500 Hz IEC 60068-2-27 (Test Ea, Unpackaged Shock): Shock, operating 30 g IEC 60068-2-27 (Test Ea, Unpackaged Shock): Shock, nonoperating 50 g Emissions IEC 61000-6-4 Rockwell Automation Publication 1794-IN049E-EN-P - May 2022...
- Page 12 GB 3836.1-2010 Explosive atmospheres — Part 1: Equipment — General requirements GB 3836.8-2014 Explosive atmospheres - Part 8: Equipment protection by type of protection “n” (1) See the Product Certification link at rok.auto/certifications for Declarations of Conformity, Certificates, and other certification details. Rockwell Automation Publication 1794-IN049E-EN-P - May 2022...
- Page 13 FLEX I/O 2-input Frequency Modules Installation Instructions Notes: Rockwell Automation Publication 1794-IN049E-EN-P - May 2022...
- Page 14 Rockwell Otomasyon Ticaret A.Ş. Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400 EEE Yönetmeliğine Uygundur Connect with us. Allen-Bradley, expanding human possibility, FactoryTalk, FLEX, Rockwell Automation, and TechConnect are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.