PLCs, Power Supplies & Others

The Schneider Electric 140DAI74000C functions as a high-density discrete input module for the Modicon Quantum automation platform. This unit monitors the status of up to 32 field devices, such as limit switches and pushbuttons. Consequently, it provides the controller with real-time status information for effective machine control.

Core Technical Specifications

We engineered the Schneider Electric 140DAI74000C for reliable signal acquisition in industrial environments. The table below details its essential physical and electronic parameters:

High-Density 32-Point Input Monitoring

This module provides 32 discrete input points in a single, compact Quantum form factor. You can connect a wide variety of 24 VDC sensing devices directly to these channels. Therefore, the 140DAI74000C significantly increases I/O density while conserving rack space.

Wide Input Voltage Tolerance

The 140DAI74000C accepts a wide input voltage range from 19.2 to 30 VDC, accommodating power supply variations. Each channel typically draws only 7 mA, minimizing the load on your field power supplies. As a result, this module offers both flexibility and low power consumption.

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 15 VDC and a logic 0 for inputs below 5 VDC. This hysteresis prevents false triggering due to electrical noise or signal fluctuations.

Group Isolation for System Protection

The 32 inputs divide into four isolated groups of eight points each, with 500 VAC isolation between groups and logic. This design prevents ground loops and protects the backplane from voltage transients on field wiring. Consequently, the Schneider Electric 140DAI74000C 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 32 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