Schneider 140ACI03000C Modicon Quantum Analog Input Module

Product Description

The Schneider Electric 140ACI03000C is an 8-channel analog input module engineered for the Modicon Quantum PLC platform. It supports both current and voltage signals, providing flexible integration for process monitoring and control systems. Designed with differential inputs and robust isolation, the module ensures reliable signal acquisition in electrically demanding industrial environments.

Although 140ACI03000C has been discontinued, it remains widely deployed in legacy Quantum systems and is supported by Schneider Electric service programs until the end-of-service date.

Key Technical Specifications

• Product Range: Modicon Quantum
• Module Type: Analog Input
• Input Channels: 8 differential inputs
• Supported Signal Ranges:
  • 0–20 mA
  • 4–20 mA
  • ±10 V
  • 1–5 V
• Resolution: 12-bit
• Absolute Accuracy:
  • Typical: ±0.05% of full scale
  • Maximum: ±0.1% of full scale
• Linearity Error: ±0.04%
• Temperature Drift: ≤ ±0.005% FS/°C
• Input Impedance:
  • Current: 250 Ω
  • Voltage: > 20 MΩ
• Maximum Input Limits:
  • 50 V DC (voltage)
  • 25 mA (current)
• Update Time: 5 ms
• Addressing Requirement: 9 input words

Electrical Isolation & Protection

• Channel-to-bus isolation: up to 1000 V DC
• High-voltage withstand: 3000 V DC (60 seconds)
• Channel-to-channel isolation: 30 V DC
• Common mode rejection: > 72 dB at 60 Hz
• Built-in low-pass filter: 15 Hz (-3 dB typical)

Mechanical & Environmental Characteristics

• Form Factor: Standard Quantum module
• Mounting: Backplane (Quantum rack)
• Weight: 0.3 kg
• Power Consumption: 2 W
• Bus Current: 240 mA
• Operating Temperature: 0 to 60°C
• Storage Temperature: -40 to 85°C
• Humidity: Up to 95% (non-condensing)
• Protective Coating: Conformal coating (Humiseal 1A33)
• Compliance: UL 508, CSA C22.2 No.142
• Certifications: FM Class 1 Division 2, cUL

Diagnostics & Indicators

• 1 × Green LED: Module active / bus communication
• 1 × Red LED: External fault
• 8 × Green LEDs: Channel status
• 8 × Red LEDs: Channel fault indication
• Built-in diagnostics:
  • Broken wire detection (4–20 mA)
  • Undervoltage detection (1–5 V)

Application Scenarios

• Process industries (chemical, oil & gas, water treatment)
• Analog signal acquisition from transmitters and sensors
• Retrofit and maintenance of legacy Modicon Quantum installations
• Systems requiring mixed signal type support (current and voltage)

FAQ

Is the 140ACI03000C still available for new projects? No, this model is discontinued. It is mainly available through surplus or secondary markets. For new designs, migration to the Modicon X80 platform is recommended.

What is the main difference between 140ACI03000C and BMXAMI0810H? The BMXAMI0810H offers improved isolation per channel, better integration with Modicon M580 systems, and long-term product support.

Does this module support both current and voltage inputs simultaneously? Yes, each channel can be configured independently for different signal types within the supported ranges.