Schneider Electric 140ATI03000C Analog Input Module

The Schneider Electric 140ATI03000C is an I/O expansion module for the Modicon Quantum platform. This specialized device provides eight high-precision analog input channels dedicated to thermocouple signals. It delivers reliable temperature monitoring for industrial automation applications.

Core Technical Specifications

• Brand: Schneider Electric
• Model: 140ATI03000C
• Product Line: Modicon Quantum Automation Platform
• Module Type: 8-Channel Analog Input (Thermocouple)
• Input Resolution: 16-bit High Precision
• Update Time: 1000 ms (1 second cycle)
• Bus Current: 280 mA @ 5V DC
• Power Dissipation: 1.5 Watts
• Isolation: 1780V AC (Channel to Bus), 300V DC (Channel to Channel)
• Common Mode Rejection: >120 dB @ 50/60 Hz
• Net Weight: 0.3 kg (0.7 lbs)

Advanced Filtering & Environmental Ratings

• Signal Filters: Notch filter (3 dB @ 50/60 Hz) & Single pole low pass (3 dB @ 20 Hz)
• Operating Temperature: 0 to 60°C (32 to 140°F)
• Storage Temperature: -40 to 85°C (-40 to 185°F)
• Operating Humidity: Up to 95% (non-condensing)
• Operating Altitude: Up to 5000 meters (16404 feet)
• EMC Immunity: 9.1 V/m (80-1000 MHz per IEC 801-3)
• ESD Protection: 4 kV contact, 8 kV air discharge (IEC 801-2)
• PCB Protection: Conformal coating (Humiseal 1A33)

Diagnostic Features & Indicators

• Channel Status: 8 Green LEDs (Channel Active), 8 Red LEDs (Channel Fault)
• Module Status: 1 Green LED (Bus Communication), 1 Red LED (External Fault)
• Fault Detection: Broken wire sensing and over-scale detection
• Addressing: Requires 10 input words in controller configuration

Packaging & Compliance Information

• Package Includes: One Schneider Electric 140ATI03000C module
• Package Dimensions: 32.0 x 16.5 x 4.5 cm (12.6 x 6.5 x 1.8 in)
• Package Weight: 459 grams (16.2 ounces)
• Shipping: Worldwide via FedEx, UPS, DHL
• Certifications: cUL, FM Class 1 Division 2, UL 508, CSA C22.2 No.142
• Quality Warranty: 12-month product quality assurance

Expert Installation & Application Notes

• Install the module in a clean, dry environment within specified temperature limits
• Use proper shielded thermocouple cables to minimize electrical noise interference
• Ensure all connections are tight to prevent broken wire fault indications
• Configure the correct thermocouple type in your PLC programming software
• Allow the module to stabilize at room temperature for optimal cold junction compensation
• Maintain proper clearance from high-voltage cables and power sources
• Verify bus current capacity when adding multiple modules to your Quantum rack

Professional Questions & Answers

What types of industrial processes typically use this module?

• This module is ideal for temperature monitoring in furnaces, ovens, and heat treatment systems. It also serves plastic extrusion, chemical processing, and food production applications.

How does the cold junction compensation work in practice?

• The module measures its own terminal block temperature internally. It automatically adjusts thermocouple readings to compensate for this local temperature effect.

Can I mix different thermocouple types on one module?

• No, the module must be configured for a single thermocouple type across all eight channels. All connected sensors must match this configured type.

What happens if a thermocouple wire breaks during operation?

• The module detects the open circuit and illuminates the specific channel's red fault LED. It can also set a fault bit in the controller for programmatic response.

Is special configuration needed for the 20Hz low-pass filter?

• No, this analog filtering is hardware-based and always active. It helps reject electrical noise without any software configuration required.

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