Omron NX-AD4208 NX Series Analog Input Module

Description

Incorporate high-performance multi-channel analog signal acquisition into your automation system with the Omron NX-AD4208 differential analog input unit. This module operates on the NX I/O Bus platform, providing eight high-density analog input channels optimized for standard 4 to 20 mA current loops. Engineered for high-speed synchronous control, the unit achieves a conversion time of 0.08 ms per unit, making it ideal for fast process monitoring and dynamic motion control synchronization when paired with NX-series Machine Automation Controllers.

Featuring an ultra-slim 12mm width, the NX-AD4208 maximizes control panel space. It utilizes a detachable push-in (Screwless Push-In Plus) terminal block system, simplifying wiring layouts and significantly reducing maintenance downtime. The differential input circuitry ensures excellent common-mode noise rejection and measurement stability in electrically harsh industrial environments.

Features

• Eight differential analog input channels configured for 4 to 20 mA current signals.
• High-speed synchronous I/O refreshing mode for precise, real-time system synchronization.
• Rapid conversion rate of 0.08 ms per unit for dynamic process tracking.
• Space-saving 12mm housing width allows high-density cabinet layouts.
• Detachable Push-In Plus terminal block simplifies installation and maintenance.
• IP20 touch-safe degree of protection.

Applications

• Process instrumentation monitoring (flow, pressure, and temperature transmitters).
• Water and wastewater treatment facility control systems.
• Automated chemical dosing and batching operations.
• Factory automation and high-speed packaging machinery.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mounting: Install directly onto a standard 35mm DIN rail. Ensure the module is securely locked into place on the NX-series bus.
• Wiring: Use shielded twisted-pair cables for all 4 to 20 mA current loop connections to minimize electromagnetic interference. Ground the shield at the control panel side only.
• Ventilation: Maintain standard clearance above and below the module rack to allow natural convective cooling. Do not block the integrated ventilation slots.
• Terminal Block Removal: To prevent damage, ensure system power is completely isolated before removing or inserting the detachable push-in terminal block.