Product Overview
The Schneider Electric 140DAI74000C is a discrete input module from the Modicon Quantum series, designed for reliable 230 VAC signal acquisition in industrial automation. With 16 input channels and a compact standard format, this module simplifies integration into existing control systems. Its conformal coating enhances durability in harsh environments, making it a cost-effective choice for reducing downtime.
Technical Specifications Breakdown
Key parameters for the 140DAI74000C are listed below for quick reference:
| Feature | Specification |
|---|---|
| Product Type | Discrete Input Module |
| Number of Channels | 16 |
| Input Voltage | 230 VAC |
| Input Current | 9.7 to 11.5 mA |
| Max Leakage Current | 2.6 mA |
| Bus Current Requirement | 180 mA |
| Max Power Dissipation | 5.5 W |
| Addressing Requirement | 1 input word |
| Ambient Temperature | 0 to 60 °C |
| Standards | UL 508, CSA |
| Marking | CE |
| Protective Treatment | Conformal coating |
Industry Applications
This module excels in applications requiring robust 230 VAC discrete sensing, such as conveyor status monitoring in material handling, machine safety interlocks in packaging lines, and level detection in water treatment plants. Its 16 channels reduce wiring complexity, lowering installation costs compared to using multiple smaller modules.
Installation & Setup Guidance
Mount the module securely in a Quantum backplane. Ensure the bus current requirement of 180 mA is within the rack power budget. Connect 230 VAC field devices to the input terminals, observing polarity and using proper fusing. The addressing requirement of 1 input word simplifies mapping in the PLC program. Verify ambient temperature stays within 0 to 60 °C.
Maintenance & Reliability
Inspect the module periodically for dust accumulation and ensure ventilation is unobstructed. The conformal coating protects against moisture and corrosive atmospheres, extending service life. Check connections for tightness during routine maintenance. No special calibration is needed.
Compatibility & Integration
The 140DAI74000C integrates seamlessly with Modicon Quantum racks and processors. It is compatible with standard Quantum I/O bus protocols. For system expansion, pair with other Quantum discrete or analog modules.
Selection Guide & Purchasing Advice
When selecting this module, verify your application requires 230 VAC input and 16 channels. For lower voltage or different channel counts, consider other Quantum options. SpareTechPLC stocks the 140DAI74000C with fast shipping and expert support. Contact us for lifecycle status and availability.
Troubleshooting & Common Issues
If the module does not power on, check backplane connection and bus current supply. For erratic input readings, measure field voltage at the terminals and compare with the 9.7 to 11.5 mA input current range. High leakage current (above 2.6 mA) may indicate a faulty field device. Replace the module if conformal coating is damaged.
