Schneider Electric 140DAI34000C

Reliable AC Signal Acquisition for Industrial Sensing

The 140DAI34000C discrete input module from Schneider Electric provides robust 24V AC signal interfacing. This Modicon Quantum series module reliably reads sixteen field devices like switches and sensors. Furthermore, it converts alternating current signals into stable logic for your PLC’s central processor.

Engineered for Complementary Group Channel Operation

Schneider Electric designed this module with a complementary group of sixteen input channels. This configuration requires only one input word in your controller’s memory map for efficient addressing. Consequently, it simplifies programming and optimizes data handling within the Quantum system.

Detailed Electrical and Performance Specifications

The module accepts a wide input voltage range from 16V to 30V AC, depending on line frequency. It guarantees a definitive ON state (State 1) within the 18-30V AC range for reliable detection. Conversely, it correctly recognizes an OFF state (State 0) when the voltage drops below 5-6V AC.

Comprehensive Technical Parameter Table

Review the complete electrical and functional specifications for the 140DAI34000C module below.

Parameter	Specification
Manufacturer	Schneider Electric
Platform/Series	Modicon Quantum
Model Number	140DAI34000C
Module Type	Discrete AC Input Module
Number of Channels	16 (Complementary Group)
Addressing Requirement	1 Input Word
Discrete Input Voltage	24V AC Nominal
Input Current per Channel	12 mA @ 57-63 Hz / 10.7 mA @ 47-53 Hz
Voltage State 1 (ON) Range	18…30 V AC
Voltage State 0 (OFF) Range	0…5 V AC
Input Impedance	2600 Ω (57-63 Hz) / 3100 Ω (47-53 Hz)
Network Frequency Limits	47…63 Hz
Maximum Leakage Current	1.9 mA
Absolute Maximum Input	30V continuous / 32V for 10s / 50V for 1 cycle
Response Time (Off to On)	4.9…0.75 ms x line cycle
Response Time (On to Off)	7.3…12.3 ms
Isolation Between Channels	1780 Vrms for 1 minute
Isolation (Channels to Bus)	1780 Vrms for 1 minute
Bus Current Requirement (5V)	180 mA

Ensuring Signal Integrity and Safety

High electrical isolation (1780 Vrms) protects both the backplane and other channels from transients. This robust isolation ensures system safety and stability during normal operation and fault conditions. The module’s specific input impedance also minimizes loading effects on connected field devices.

Optimized for Global Power Standards

The 140DAI34000C operates correctly across both 50 Hz and 60 Hz industrial power frequencies. Its specifications automatically adjust key parameters like input current and impedance accordingly. Therefore, this Schneider Electric module offers versatile deployment in facilities worldwide without hardware changes.

Fast and Deterministic Response for Control Loops

With response times measured in milliseconds relative to the line cycle, performance is predictable. This deterministic behavior is crucial for applications involving fast-moving machinery or process sequencing. The module ensures your Quantum PLC receives accurate and timely status updates from all sixteen sensors.