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- Schneider
- 140DAI54300
- Discrete Input Module
- France
- 103.9 × 40.3 × 250 mm
- 0.3 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Schneider Electric 140DAI54300 is a Modicon Quantum 16-channel AC discrete input module designed for industrial PLC systems. It is used to acquire 115 V AC digital field signals and convert them into processed input data for control logic execution.
This module is commonly deployed in large-scale industrial automation systems requiring reliable signal isolation and stable high-voltage AC input handling.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Series | Modicon Quantum |
| Model | 140DAI54300 |
| Product Type | Discrete Input Module |
| Input Channels | 16 |
| Input Voltage | 115 V AC |
| Channel Grouping | 2 groups |
| Signal Type | Digital / Discrete |
| Mounting Type | Backplane rack module |
| Dimensions | 103.9 × 40.3 × 250 mm |
| Weight | 0.31 kg |
| Operating Temperature | 0–60 °C |
| Isolation | Group-to-bus isolation (industrial grade) |
Function and Working Principle
The 140DAI54300 is designed to detect ON/OFF AC signals from field devices.
Typical input sources include:
- Push buttons
- Limit switches
- Proximity switches (AC type)
- Relay contacts
Working Process
- Field device applies 115 V AC signal
- Input channel detects voltage presence
- Internal isolation circuitry filters and protects signal
- PLC reads result as logic state (ON/OFF)
Signal Flow
Field Device → Input Terminal → Isolation Circuit → PLC Backplane → Control Logic
Role in PLC System
Within the Modicon Quantum architecture, this module functions as a digital input interface between field wiring and the PLC CPU.
It supports:
- High-density input monitoring
- Electrically isolated signal acquisition
- Stable operation in industrial environments
- Integration with Quantum rack systems
Industrial Applications
- Motor start/stop status monitoring
- Pump and valve feedback signals
- Machine interlock systems
- Alarm and fault detection systems
- Process automation systems
- Utility and infrastructure control
Installation Notes
- Installed in Modicon Quantum rack backplane
- Requires 115 V AC field wiring compatibility
- Proper grounding and shielding required
- Must comply with industrial wiring standards
- Do not mix incompatible signal types on channels
Compatible Components
- Modicon Quantum CPU modules
- Quantum rack backplanes
- Digital output modules (DO series)
- Analog I/O modules
- Remote I/O expansion systems
- EcoStruxure / Unity Pro / Concept software
Alternative Models
- 140DAI54000 (related AC input variant)
- 140DDI series (DC digital input modules)
- 140DDO series (digital output modules)
- Modicon M340 / M580 input modules
Key Advantages
- 16-channel high-density design
- Industrial-grade electrical isolation
- Reliable 115 V AC signal detection
- Stable Quantum platform integration
- Suitable for harsh industrial environments
- Easy rack-based installation
FAQ
Q: What type of signals does it read?
It reads 115 V AC digital ON/OFF signals.
Q: Is it analog or digital?
It is a digital (discrete) input module.
Q: What system does it belong to?
It belongs to the Modicon Quantum PLC platform.
Conclusion
The Schneider 140DAI54300 Discrete Input Module is a robust industrial PLC input module designed for reliable acquisition of 115 V AC digital signals. It is widely used in large-scale automation and control systems requiring stable, isolated, and high-density input processing.