SCHNEIDER|TM3AI8|Analog Input Module

Schneider Electric TM3AI8 Analog Input Module

Description
Schneider Electric TM3AI8 is an 8-channel analog input module designed for Modicon M221, M241, M251, and M262 PLCs, supporting 4–20 mA, 0–20 mA, 0–10 V, and -10–10 V signals.

Features

• Compatible with Modicon TM3 series and M2xx controllers
• Supports voltage and current inputs with high resolution
• Screw terminal connection for reliable wiring
• DIN rail mounting (TH35-15/7.5)
• Green PWR LED for status indication

Technical Specifications

• Analog Inputs

  • Number: 8
  • Types: 4–20 mA, 0–20 mA, 0–10 V, -10–10 V
  • Resolution: 12 bits (voltage), 11 bits + sign (current)
  • Input Impedance: ≥1 MΩ (voltage), ≤50 Ω (current)
  • LSB Value: 2.44 mV (0–10 V), 4.88 mV (-10–10 V), 4.88 µA (0–20 mA), 3.91 µA (4–20 mA)
  • Conversion Time: 1 ms + 1 ms per channel + 1 controller cycle
  • Sampling Duration: 1 ms

• Accuracy & Stability

  • Absolute Accuracy: ±1% FS (±0.2% FS at 25°C)
  • Temperature Drift: ±0.01% FS/°C
  • Non-linearity: ±0.2% FS
  • Cross Talk: ≤1 LSB
  • Repeat Accuracy: ±0.5% FS

• Electrical & Mechanical

  • Supply Voltage: 24 V DC (20.4–28.8 V range)
  • Power Consumption: 40 mA @ 5 V DC (bus), 40 mA @ 24 V DC (external, full load)
  • Insulation: 1500 V AC (input to supply), 500 V AC (input to logic)
  • Connection: Removable screw terminal, 3.81 mm pitch, 10 x 1.5 mm²
  • Dimensions: 90 x 23.6 x 70 mm
  • Weight: 0.11 kg
  • Mounting: TH35 DIN rail or panel

• Environmental & Compliance

  • Operating Temperature: -10°C to 55°C (horizontal), -10°C to 35°C (vertical)
  • Storage Temperature: -25°C to 70°C