TWDALM3LT Twido Analog I/O Module – 2 Inputs 1 Output 0-10V 4-20mA

Compact analog module for Twido controllers. 24 V DC supply. 2 inputs + 1 output. Supports 0-10 V, 4-20 mA, Pt100, and thermocouples J/K/T. 12-bit resolution. Reliable for industrial automation.

Technical Data

• Brand: Schneider Electric / Twido
• Model: TWDALM3LT
• Series: Twido Analogue I/O
• Type: Analog I/O Module – 2 inputs, 1 output
• Supply: 24 V DC (20.4…28.8 V), 50 mA @5V, 60 mA @24V
• Inputs:
  • 2 analog inputs – configurable
  • Input types: Pt100 (3-wire diff), Thermocouple J/K/T
  • Measurement range: Pt100 -100…+500 °C; TC J -200…+760 °C; TC K -270…+1370 °C; TC T -270…+400 °C
  • Resolution: 12 bits – LSB: 0.1 °C (TC T), 0.15 °K (Pt), 0.3 °C (TC J), 0.325 °C (TC K), 2.5 mV, 4.8 µA
  • Impedance: ≤250 Ω (TC source), ≤5 Ω (Pt source)
• Outputs:
  • 1 analog output – current 4…20 mA or voltage 0…10 V
  • Load: ≤300 Ω (current), ≥2000 Ω (voltage)
  • Resolution: 12 bits
• Performance:
  • Conversion time: 20 ms + 1 controller cycle
  • Stabilisation: 20 ms
  • Sampling: ≤50 ms, repetition 50 ms
  • Acquisition: 500 ms + 1 cycle
  • Non-linearity: ±0.2 %FS (all types)
  • Repeat accuracy: ±0.5 %FS
  • Total error: ±1 %FS (input/output)
  • Measurement error @25°C: TC J/K/T: ±0.2 % ±4 °C; Pt: ±0.2 % FS; 0-10V / 4-20mA: ±0.2 % FS
  • Temp. coefficient: TC/Pt: ±0.006 %FS/°C; output V/I: ±0.015 %FS/°C
  • Common mode rejection: -50 dB
  • Crosstalk: ≤2 LSB
  • Output ripple: ≤1 LSB
• Environmental & Mechanical:
  • Operating temp: 0…55 °C
  • Storage temp: -25…70 °C
  • IP rating: IP20
  • Dielectric strength: 500 V (I/O to supply)
  • Insulation: Photocoupler (channel to logic)
  • Cable: Shielded twisted pair recommended
  • Weight: 0.085 kg
• Compliance & Certifications: CE, CSA, UL, RoHS (compliant)

Installation & Commissioning

• Removable screw terminal block – easy wiring
• External 24 V DC supply required
• Auto‑detects input type (Pt100/TC) via configuration
• LED indicators for power and channel status
• No special tools needed – plug‑and‑play with Twido controllers
• Maintenance: periodic check of terminal tightness and cable shielding

Compatibility

• Designed for Twido programmable controllers
• Works with TwidoSuite and EcoStruxure Machine Expert
• Fits all Twido base units with expansion bus

Certifications, Package & Warranty

• Certified: CSA, UL, CE, RoHS (EU 0630)
• Package includes: Module, removable terminal block, user manual (digital)
• Warranty: 12 months against manufacturing defects
• Shipping: 12‑24 hour dispatch via FedEx, UPS, or DHL (tracking provided)

Expert Review

“The TWDALM3LT offers exceptional versatility for temperature and analogue signal processing. Its 12‑bit resolution and low crosstalk ensure precise readings even in noisy environments. The wide thermocouple range and Pt100 support make it a top choice for HVAC, kiln, and plastic extrusion applications. Robust isolation and CE/UL approvals guarantee safe integration.”

Manager‘s Insight

“For cost‑effective automation, this module reduces wiring complexity and panel space. The quick 20 ms conversion and plug‑and‑play design slash commissioning time. With global shipping and 12‑month warranty, it’s a reliable investment for OEMs and system integrators.”

Applications & Suitable Devices

• Devices: Twido PLCs, small‑scale DCS, temperature controllers
• Scenarios: Oven temperature control, plastic extrusion, HVAC, water treatment, kiln monitoring, test stands

Frequently Asked Questions

• Q: Can I use this module with a 12 V supply?
• A: No. It requires 24 V DC (20.4…28.8 V). A regulated 24 V power supply is recommended.
• Q: Does it support 3‑wire Pt100?
• A: Yes. It uses differential 3‑wire connection for lead compensation.
• Q: How do I select thermocouple type?
• A: Configure via software (TwidoSuite) – select J, K, or T type.
• Q: What is the max cable length for inputs?
• A: Use shielded twisted pair up to 100 m for best accuracy.
• Q: Can the output drive a valve directly?
• A: Yes, if the valve input impedance is within 300 Ω (current) or ≥2000 Ω (voltage).
• Q : Which thermocouple is best for high temperature?
• A: Type K (up to 1370 °C) is ideal for furnaces; type J is for lower ranges.
• Q : Should I choose voltage or current output?
• A: Current (4‑20 mA) is more immune to noise over long distances. Voltage (0‑10 V) is fine for short runs.

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