Allen Bradley 1794-IF4I FLEX I/O Isolated Analog Input Module

Description

The Allen-Bradley 1794-IF4I is a FLEX I/O isolated analog input module designed for high-precision industrial applications. It offers four configurable input channels for voltage or current signals, with built-in isolation and advanced conversion capabilities.

Specifications

• Input Channels: 4 isolated analog inputs

• Signal Types: Configurable for voltage (±10V, 0–10V, ±5V, 0–5V) or current (4–20 mA, 0–20 mA, ±20 mA)

• Resolution: 16-bit unipolar; 15-bit + sign bipolar

• Conversion Type: Sigma-Delta (Σ-Δ) ADC

• Conversion Rate: 2.5 ms to 7.5 ms per channel

• Accuracy: ±1.25% full scale at 0°C; ±0.1% full scale at 25°C

• Temperature Range: Operating -20°C to +55°C; Storage -40°C to +85°C

• Power Supply: 24V DC nominal; range 19.2–31.2V DC

• FlexBus Current: 50 mA

• Mounting: DIN rail or panel

Features

• Channel Isolation: Each input channel is independently isolated for enhanced signal integrity

• Wide Signal Support: Accepts multiple voltage and current ranges, user-configurable

• Factory-Calibrated: Pre-calibrated for accuracy; supports field recalibration

• Status Indicators: Dual-color LED for module health and power status

• Flexible Integration: Compatible with various FLEX I/O adapters for distributed control

• High Reliability: Designed for harsh industrial environments with vibration and shock resistance

• Input Filtering: Adjustable input filters per channel for noise reduction

• Compact Design: Space-saving module ideal for modular control systems