Technical Overview
The Schneider TM2AMM3HT is a compact analog input/output expansion module for the Modicon M238 and Twido logic controllers . This unit provides two high-level analog inputs and one analog output for integrating field sensors and actuators. Each analog channel supports both voltage and current signals, offering application flexibility. A removable screw terminal block simplifies field wiring and maintenance. The module operates on a 24 VDC external power supply and draws 50 mA from both the internal 5 VDC bus and the external 24 VDC supply . Its compact 23.5 x 90 x 70 mm footprint saves valuable cabinet space. A 12-bit resolution ensures precise signal conversion for demanding process control tasks .
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Model Number | TM2AMM3HT |
| Product Type | Analog Input/Output Expansion Module |
| System Compatibility | Modicon M238, Twido, Advantys OTB |
| Analog Inputs | 2 (non-differential) |
| Input Signal Types | 0-10 VDC, 4-20 mA |
| Input Impedance | ≥1 MΩ (voltage), ≥10 Ω (current) |
| Input Resolution | 12 bits (4096 increments) |
| Input Accuracy | ±0.2% of full scale at 25°C |
| Temperature Drift (Input) | 0.006% FS/°C |
| Analog Outputs | 1 |
| Output Signal Types | 0-10 VDC, 4-20 mA |
| Load Impedance | ≥2 kΩ (voltage), ≤300 Ω (current) |
| Output Resolution | 12 bits (4096 increments) |
| Output Accuracy | ±0.2% of full scale at 25°C |
| Temperature Drift (Output) | 0.015% FS/°C |
| Stabilization Time | 10 ms (output) |
| Sampling Duration | 10 ms (input) |
| Total Input Transfer Time | 60 ms + 1 scan |
| External Power Supply | 24 VDC nominal (19.2-30 VDC range) |
| Internal 5V Current Draw | 50 mA max |
| External 24V Current Draw | 50 mA max |
| Isolation | 500 VAC (photocoupler) |
| Weight | 0.085 kg |
| Dimensions (W x H x D) | 23.5 x 90 x 70 mm |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -25°C to +70°C |
| Protection Rating | IP20 |
| Certifications | CE |
| Country of Origin | France |
Key Features
Dual-Channel Analog Input – The module provides two non-differential analog inputs with 12-bit resolution, delivering precise signal acquisition for sensors . It supports 0-10 VDC voltage signals with an impedance greater than 1 MΩ and 4-20 mA current signals with 10 Ω impedance .
Configurable Software Selection – Users can configure each input and output channel for voltage or current signals through the programming software, enabling adaptation to various sensor types without hardware modification .
High Accuracy and Stability – The module achieves ±0.2% full-scale accuracy at 25°C with minimal temperature drift of 0.006% FS/°C for inputs and 0.015% FS/°C for outputs, ensuring reliable measurements across varying ambient conditions .
Optical Isolation – Photocoupler isolation provides 500 VAC separation between I/O channels and the internal logic circuits, effectively protecting the controller from field-side electrical noise and transients .
Compact Space-Saving Design – The module’s 23.5 mm width and 0.085 kg weight allow installation in space-constrained control cabinets .
Removable Screw Terminal Block – The detachable connector simplifies field wiring and accelerates module replacement during maintenance, reducing system downtime .
Applications
The Schneider TM2AMM3HT suits machine control, process monitoring, and automation systems requiring mixed analog signal handling. It is ideal for packaging equipment, material handling, and HVAC control within Modicon M238 and Twido-based platforms .
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 110 × 55 × 90 mm |
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