1794-IJ2 Allen Bradley Rockwell Flex I/O 2 Point Input Frequency Module

Product parameters

Series: Flex I/O

Type: Frequency input module

Input channels: 2 channels (2 inputs per channel: frequency input and gated input)

Input frequency range :1-32 kHz (sine wave)

1-32 kHz (square wave)

Minimum input pulse width: 20 μs

Input voltage: Open state: 10V DC (minimum), 31.2V DC (maximum)

Off state: 5V DC (maximum)

Input current: Open state: 15 mA @ 24V DC (nominal)

Off state: 1.3 mA (maximum)

Output channels: 2 isolated outputs (current source type)

Output voltage: Nominal: 24V DC

Range: 10-31.2V DC

Output current: Per channel: 1 mA (minimum), 1 A (maximum)

Surge current: 2 A (lasting for 50 ms, repeating every 2 seconds)

Output switching time: 0.5 ms on, 1 ms off

Power supply requirements: External power supply: 19.2-31.2V DC (Nominal 24V DC, including 5% AC ripple)

Current consumption: 150 mA @ 24V DC

Flexbus current: 60 mA @ 5V DC

Power consumption: Maximum 3.6W @ 31.2V DC

Heat dissipation: Maximum 12.3 BTU/hr @ 31.2V DC

Resolution: 16 bits

Terminal base: Compatible with 1794-TB3G and 1794-TB3GS

Installation method: DIN rail or panel mounting (torque 7 pound-inch)

Enclosure type: Open type (IP20)

Operating temperature: 0 to 55°C (32 to 131°F)

Storage temperature: -40 to 85°C (-40 to 185°F)

Relative humidity: 5-95% (non-condensing)

Vibration: 5G@10-500Hz during operation

Impact: 30G during operation and 50G when not in operation

Certifications: C-TICK, CE, CSA, CUL, GOST, KC, MARINE, UL

Function

High-resolution frequency measurement: Supports 1-32 kHz frequency input (sine wave or square wave), suitable for high-precision frequency, velocity or acceleration measurement.

16-bit resolution, providing precise data acquisition.

Multi-functional operation mode: Supports frequency calculation, termination based on pulse count, direction detection and missing pulse multiplier function.

The output can be assigned as frequency, full-scale percentage or acceleration alarm.

Diagnostic function: Equipped with 4 yellow status indicator lights (for frequency and gate input) and 4 red disconnection indicator lights, it can monitor the input status in real time.

It provides disconnection detection function to enhance system reliability.

Isolated output: Two isolated outputs support 24V DC loads, suitable for driving relays, indicator lights or other devices.

Modular design: Supports hot plugging, simplifying installation and maintenance.

It is connected through the terminal base and is compatible with multiple wiring configurations.

Communication compatibility: Supports ControlNet, DeviceNet and EtherNet/IP networks through Flex I/O adapters, and integrates with ControlLogix or CompactLogix systems.

Status indication: Equipped with an "OK" green LED to indicate the power status of the module, facilitating fault diagnosis.

Application scenarios

Industrial automation: Used in manufacturing, packaging and material handling systems to measure the speed and frequency of rotating equipment.

Process control: Applicable to the oil and gas, chemical and water treatment industries, it is used to monitor the frequency signals of turbines, flow meters or vibration sensors.

Distributed control system: In conjunction with the Flex I/O system, it is suitable for distributed I/O architectures, such as automotive production lines and food and beverage processing.

Motion control: It is used in scenarios that require precise speed or direction detection, such as conveyor belts, robots or CNC equipment.

Data acquisition: Integrated into SCADA or DCS systems for real-time frequency data acquisition and analysis, suitable for industrial Internet of Things applications.

Advantage Products:

All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the other conditions are needed, Used, Open-box, Refurbished, etc.

Many Available just wait for you, feel free to ask to get better deal!!!

Bou L(Sales Manager)            

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Doris(Sales Specialist)       

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