SCHNEIDER 140DAI75300 AC Input 32 Points 230 VAC 8-Point Group Isolation

SCHNEIDER 140DAI75300 AC Input 32 Points 230 VAC 8-Point Group Isolation

Overview and Technical Specifications
The Schneider Electric 140-DAI-753-00 is a flexible, dependable I/O module specifically engineered for VAC discrete input applications. As a standard component of the Modicon Quantum series, it plays a crucial role in industrial automation and process control systems, delivering advanced capabilities for input handling and monitoring. Produced by Schneider Electric—a pioneer in industrial automation solutions—the 140-DAI-753-00 VAC discrete input module guarantees exceptional performance and reliability. It is well-regarded for its smooth compatibility with diverse software platforms, including Unity Pro, ProWORX 32, and Concept, allowing for seamless integration into a wide array of automation frameworks.

Input Capacity and Channel Grouping
Featuring 32 discrete input channels, the 140-DAI-753-00 module organizes these channels into four separate groups. This configuration simplifies the management and organization of input signals, boosting the efficiency of system control and monitoring. Each group can be isolated independently, offering enhanced safeguarding against electrical disruptions—a key requirement for preserving the integrity of the control system.

Voltage and Current Specifications
This module functions with an input voltage range of 230 V AC and supports two distinct operational frequency bands: 47–53 Hz and 57–63 Hz. For each frequency band, the guaranteed voltage range for state 1 is 175–264 V AC (applicable to 47–53 Hz) and 165–264 V AC (applicable to 57–63 Hz). Regardless of the operating frequency, the voltage range for state 0 is consistently ensured to be 0–40 V AC. At 230 V AC, the input current varies by operating frequency: it measures ≤ 9.7 mA when operating at 47–53 Hz and ≤ 11.5 mA when operating at 57–63 Hz. The module’s impedance is designed to be capacitive, with values of 31,800 Ohms (for 47–53 Hz) and 26,500 Ohms (for 57–63 Hz).

Response Time and Leakage Current
The 140-DAI-753-00 module delivers rapid response times: the Off-On transition ranges from 4.9 ms to 0.75 times the line cycle, while the On-Off response time spans 7.3 ms to 12.3 ms. This ensures accurate and reliable signal processing. Additionally, the module maintains low leakage current (≤ 2.6 mA), which helps avoid signal interference and false triggering events.

Isolation and Power Dissipation
Isolation is a vital characteristic of the 140-DAI-753-00 module. It holds a rating of 1780 Vrms for isolation—both between groups and between groups and the bus—for durations of up to one minute. This high level of isolation enhances operational safety and shields the module as well as connected devices from electrical faults. The module also boasts energy efficiency, with a power dissipation of ≤ 5 W, while still upholding strict operational standards.

Signaling and Markings
The 140-DAI-753-00 is equipped with various local signaling features, such as a green LED indicator for active bus communication and a red LED indicator for external faults. Moreover, each of the 32 input channels is fitted with its own green LED status indicator, ensuring clear visibility of the operational state of individual channels. The module carries the CE marking, signifying its compliance with European safety and quality regulations.