Rated 4.7 with 15 reviews


Revisions: Ser A

Description:   The Allen-Bradley 1794-IJ2 Flex I/O 2 Input Frequency Module has 2 per Channel Inputs, a 1-32 kHz w/sine wave max. Input Frequency, and a 10V On-state Voltage min.. It also operates with a 2 Isolated Outputs and a 24V DC Output Voltage nom..

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About 1794-IJ2

The 1794-IJ2 by Allen Bradley belongs to the family of Flex Input/Output modules. It is a DC input frequency module, running on 24 Volts DC. This module works on a rack-based configuration; a total of 8 terminals can be configured at once, using an adapter module.

This unit has 2 inputs, 2 outputs, and 2 frequency inputs, enabling it to perform high-speed algorithms; its two frequency inputs have frequencies of 32 and 767 Hertz. Its most basic applications include all processes that make use of units to measure acceleration, direction, or reporting frequency at a given point in time. The data instructions are in the form of MSG commands and are processed using RSLogix 500 software.

Both the inputs and the outputs are electrically fused to prevent damages at the time of interrupted power supply and there are indicators for process identification and power supply.

Installing this device is a user-friendly process; it can either be mounted with screws or as a DIN rail mount using a 1794-NM1 for mounting. The flex bus connector must be fully inserted into the terminal unit. There are dedicated options for using Profibus or Ethernet as the network for communication.

The operating temperature ranges between 0 and 55 degrees Celsius with a maximum starting current of 10 A.

Technical specifications:

Part Number:1794-IJ2
Product Type:Flex I/O 2 Input Frequency Module
Inputs:2 per Channel
Input Frequency:1-32 kHz w/sine wave max.
On-state Voltage min.:10V
On-state Current nom.:9.0mA
Outputs:2 Isolated
Output Voltage nom.:24V DC
Output Off-state Voltage max.:31.2V DC
Output On-state Current:1.0A per Channel max.
Power Dissipation:4.6W @ 31.2V DC max.
Thermal Dissipation:15.6 BTU/hr. @ 31.2V DC max.

Please refer to the manual for more information about the 1794-IJ2 such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-IJ2 Ser A
1794-IJ2/A, Series A, Rev A Request Quote

Common misspellings: 1794IJ2
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