Schneider 140DAI45300 32-Channel AC Input Module

140DAI45300 Modicon Quantum AC Input Module

Product Introduction

The Schneider Electric 140DAI45300 is a high-density AC discrete input module designed for the Modicon Quantum automation platform. Specifically, it provides 32 input channels arranged in four isolated groups of eight. Furthermore, this module operates with 48V AC signals, making it ideal for interfacing with AC proximity sensors and limit switches.

What distinguishes the 140DAI45300 is its robust AC input handling and comprehensive isolation. For instance, each group achieves 1780 Vrms isolation from the bus and from other groups. Moreover, the module supports network frequencies from 47 to 63 Hz, accommodating both 50 Hz and 60 Hz power systems worldwide. Consequently, this unit proves invaluable for legacy AC sensor installations and retrofit projects.

In addition, the addressing requirement of only two input words simplifies system configuration. Therefore, the 140DAI45300 integrates effortlessly into complex control architectures while consuming minimal memory.

Technical Specifications

Input Characteristics
To begin with, the module offers 32 discrete AC input channels. These channels divide into four groups, with each group containing 8 individually isolated inputs. Meanwhile, the nominal input voltage is 48V AC, with a frequency range spanning 47 to 63 Hz. Additionally, the module supports both 50 Hz and 60 Hz systems without adjustment.

Voltage Thresholds
For state 1 (ON) at 57–63 Hz, the guaranteed voltage ranges from 29V to 56V AC. Meanwhile, at 47–53 Hz, the ON threshold falls between 34V and 56V AC. For state 0 (OFF), the voltage stays between 0V and 10V AC across both frequency ranges. Therefore, the 140DAI45300 offers clear and reliable signal discrimination.

Current and Impedance
First, the input current measures 11.7 mA at 57–63 Hz. Next, at 47–53 Hz, it draws 9.8 mA. Moreover, the input impedance is 5600 Ohms capacitive at 57–63 Hz and 6800 Ohms capacitive at 47–53 Hz. Furthermore, the maximum leakage current stays below 1.7 mA, preventing false triggering.

Absolute Maximum Ratings
The absolute maximum input voltage reaches 100V for 1 cycle. However, continuous operation allows only 56V AC maximum. Additionally, the module withstands 63V AC for up to 10 seconds. Exceeding these limits may cause permanent damage.

Addressing Requirements
Specifically, the module requires 2 input words for addressing in the rack configuration. Therefore, it occupies two consecutive input registers in the system memory map. This efficient addressing scheme makes the 140DAI45300 easy to program with ProWORX 32, Concept, or Unity Pro software.

Response Times
For speed, the turn-on time from state 0 to state 1 ranges from 4.9 ms to 7.5 ms per line cycle. Meanwhile, the turn-off time from state 1 to state 0 ranges from 7.3 ms to 12.3 ms. Consequently, this module captures AC signals with predictable and consistent timing.

Isolation and Protection
Between groups, isolation reaches 1780 Vrms for 1 minute. Similarly, between the groups and the backplane bus, isolation also measures 1780 Vrms for 1 minute. Therefore, electrical noise and transient spikes are effectively suppressed, ensuring system integrity.

Power Consumption
The bus current requirement stands at 250 mA. Meanwhile, the maximum power dissipation reaches 10.9 W with all 32 inputs active. Thus, adequate ventilation within the control cabinet ensures stable operating temperatures.

Local Signalling
A green Active LED confirms that bus communication is present. Meanwhile, a red Fault LED (F) illuminates when an external fault condition occurs. In addition, 32 green LEDs display the real-time status of each input channel. Therefore, diagnostics become straightforward and intuitive.

Mechanical and Environmental Parameters

Physical Dimensions
In terms of size, the module measures 100 mm in height, 40 mm in width, and 130 mm in depth. Therefore, it occupies only one standard slot in the Modicon Quantum backplane – preserving valuable space for other I/O modules.

Weight
The net weight is 0.3 kg (0.7 lbs). Meanwhile, the shipping weight – including packaging – reaches approximately 0.48 kg (16.8 oz).

Temperature Ranges
For operation, the ambient temperature ranges from 0°C to 60°C (32°F to 140°F). For storage, it withstands temperatures from -40°C to 85°C (-40°F to 185°F). Thus, the 140DAI45300 performs reliably across diverse climate conditions.

Humidity and Altitude
The relative humidity tolerance reaches 95% without condensation. In addition, the maximum operating altitude extends to 5000 meters (16,404 feet). Consequently, this module suits high-elevation installations such as mountain processing plants.

Certifications and Standards
The module carries UL 508 and CSA C22.2 No 142 certifications for North American compliance. Additionally, it holds cUL and FM Class 1 Division 2 approval for hazardous locations. Furthermore, CE marking covers European market requirements.

EMC Immunity
For electrostatic discharge, it withstands 4 kV contact and 8 kV air discharges per IEC 801-2. Meanwhile, for electromagnetic fields, it resists 9.1 V/m (10 V/m) over 80–2000 MHz per IEC 801-3. Therefore, it operates stably in electrically noisy industrial environments.

Installation Guidance

First, ensure the Modicon Quantum rack is completely powered down before installation. Next, insert the 140DAI45300 into any available standard slot. However, pay attention to addressing requirements – this module needs two input words in the rack configuration.

After physical placement, wire your AC sensors to the removable terminal block. Since this module accepts 48V AC signals, connect the live wire from your sensor to the input terminal. Then, connect the neutral return to the common terminal for that group. Ensure that the supply voltage does not exceed 56V AC continuously.

Moreover, distribute input wiring across the four groups to simplify troubleshooting. Each group has its own return path and isolation, so a fault in one group does not affect the others. Finally, use appropriately rated AC cabling – typically 0.5 mm² to 1.5 mm² – to handle the expected current safely.

Packaging List

Your shipment of the 140DAI45300 includes the following items:

• Schneider Electric 140DAI45300 discrete AC input module (1 unit)

• Removable terminal block (pre-installed on the module)

• Anti-static protective bag for safe handling

• Quick-start installation reference card

• Mounting screws (2 pieces, pre-attached)

Note: Field wiring, AC sensors, external fuses, and terminal accessories are not included. Please order these separately.

Shipping and Delivery

We dispatch all orders through FedEx, UPS, or DHL – selecting the best carrier based on your destination. Each package is carefully cushioned and tracked throughout transit. Typical delivery times range from 3 to 7 business days internationally. Expedited shipping options are available upon request.

Frequently Asked Questions (FAQ)

Q1: Can I use the 140DAI45300 with 24V AC sensors?
No. The 140DAI45300 requires a nominal 48V AC input. The guaranteed ON voltage starts at 29V AC (57–63 Hz) or 34V AC (47–53 Hz). 24V AC signals will not reliably trigger the module. Consider the 140DAI34000 for 24V AC applications.

Q2: What happens if I apply DC voltage to this module?
The 140DAI45300 is designed exclusively for AC signals. Applying DC voltage will not activate the inputs correctly and may damage the internal capacitive input circuitry. Always use AC sensors with this module.

Q3: Can I mix 50 Hz and 60 Hz sensors on the same module?
Yes. The module accepts frequencies from 47 Hz to 63 Hz. Therefore, you can connect both 50 Hz and 60 Hz sensors to different input channels without any configuration changes.

Q4: How do I troubleshoot an input that stays ON continuously?
First, check the sensor voltage with a multimeter to confirm it drops below 10V AC when OFF. Next, inspect the wiring for leakage or short circuits. Additionally, verify that the group's neutral return connection is secure.

Q5: Does this module support hot-swapping?
No. You must power down the entire Quantum rack before inserting or removing the 140DAI45300. Hot-swapping is not supported and may damage the module or backplane. Always perform installations with the system powered off.