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

Overview

The Allen-Bradley 1794-IJ2 is a FLEX I/O frequency input module designed to capture and process pulse and frequency signals from industrial sensors. It is commonly used for speed measurement, flow monitoring, and position tracking applications where accurate frequency detection is required.

General Information

Part Number: 1794-IJ2

Brand: Allen-Bradley (Rockwell Automation)

Country of Origin: USA

Series: FLEX I/O

Type: Frequency Input Module

Mounting: DIN rail / FLEX I/O terminal base installation

Function: Pulse and frequency signal acquisition for industrial control systems

Technology: High-speed digital frequency counting with backplane communication

Power Specifications

Supply Voltage: 24 V DC (nominal)

Power Consumption: Low power consumption, typically under 5 W

Input Type: Frequency / pulse input signals

Protection: Electrical isolation, noise filtering, and surge protection

Indicators: LED status indicators for channel activity and module diagnostics

Communication & Interface

Input Channels: 2-channel frequency inputs

Signal Processing: High-speed pulse counting and frequency measurement

System Integration: Interfaces with FLEX I/O adapters for controller communication

Diagnostics: Signal integrity monitoring and fault detection

Response Time: High-speed response suitable for motion and flow measurement

Environmental

Operating Temperature: 0 to +55 °C

Storage Temperature: −40 to +85 °C

Humidity: 5% to 95% RH, non-condensing

Vibration Resistance: Suitable for industrial control cabinet environments

Protection Rating: IP20 (installed inside enclosure)

Dimensions & Weight

Dimensions (H × W × D): 94 × 46 × 53 mm

Weight: 0.1 kg

High-speed signal monitoring solutions ready for global industrial applications – available for fast dispatch!