PLCs, Power Supplies & Others

The Schneider 140DAI44000C functions as a high-density discrete input module for the Modicon Quantum automation platform. This unit monitors 48V AC signals from sensors, pushbuttons, and other field devices. Consequently, it provides reliable status information to the controller for effective machine and process control.

Core Technical Specifications

We engineered the Schneider 140DAI44000C for robust AC signal acquisition in industrial environments. The table below details its essential physical and electronic parameters:

High-Density AC Input Monitoring

This module provides 16 discrete input points in a single, compact Quantum form factor. You can connect a wide variety of 48 V AC sensing devices directly to these channels. Therefore, the 140DAI44000C significantly increases I/O density while conserving rack space.

Wide AC Voltage Tolerance

The 140DAI44000C accepts a wide input voltage range from 40 to 60 V AC, accommodating typical line variations. It operates across the full industrial frequency range of 47 to 63 Hz. As a result, this module offers flexibility for global installations with different AC power standards.

Clear On/Off Thresholds for Reliable Detection

Well-defined voltage thresholds ensure reliable distinction between on and off states. The module registers a logic 1 for inputs above 34 V AC and a logic 0 for inputs below 20 V AC. This hysteresis prevents false triggering due to electrical noise or minor voltage fluctuations.

Individual Channel Group Isolation

The 16 inputs are isolated in 16 separate groups of one channel each, providing 1500 Vrms isolation. This design prevents ground loops and protects the backplane from voltage transients on individual field wiring. Consequently, the Schneider 140DAI44000C enhances overall system robustness.

Seamless Quantum Platform Integration

You can install this module in any Modicon Quantum local or remote I/O rack. It communicates with the CPU via the Quantum backplane, automatically updating input statuses in the controller’s memory. Therefore, programming the module requires no special configuration beyond standard I/O mapping.

LED Status Indicators for Quick Diagnostics

A column of 16 green LED indicators on the front panel shows the real-time status of every input channel. Technicians can instantly verify field device operation without needing a programming terminal. This feature greatly speeds up troubleshooting during commissioning and maintenance.

Details