The Schneider Electric TM2ALM3LT expands your Modicon M238 logic controller with versatile analog measurement and control capabilities. This module provides two low-level analog inputs for direct connection to thermocouples or temperature probes. Furthermore, it includes one analog output that you can configure for current or voltage signals. The TM2ALM3LT is also compatible with Advantys OTB and Twido platforms, giving you flexible integration options. With 12-bit resolution on both inputs and outputs, this module ensures accurate process monitoring and precise actuator control.
The Schneider Electric TM2ALM3LT accepts a wide variety of temperature sensors. For thermocouples, it supports type J (0 to 1200°C), type K (0 to 1300°C), and type T (0 to 400°C) in differential mode. It also handles 3-wire Pt probe inputs for the -100 to 500°C range. The input impedance is at least 1 MOhm, ensuring minimal loading on your sensors. The module achieves a resolution of 0.1°C for thermocouples and 0.15°C for Pt probes. Additionally, the input resistance to electrostatic discharge and electromagnetic interference meets rigorous industrial standards.
The single analog output on the TM2ALM3LT offers flexible configuration options. You can select either 4-20mA current output (with a maximum load of 300 ohms) or 0-10V voltage output (with a minimum load of 2,000 ohms). The output resolution is 12 bits, providing fine control for your actuators. Stabilization time is only 20ms, enabling fast response in dynamic processes. The output error stays within ±1% of full scale, and ripple remains below 1 LSB for clean, stable signals.
The Schneider Electric TM2ALM3LT delivers reliable accuracy across various operating conditions. Measurement error at 25°C is ±0.2% of full scale for all input types. For thermocouples, this translates to ±4°C accuracy. The temperature coefficient is remarkably low at ±0.006% FS/°C for temperature inputs, and ±0.015% FS/°C for voltage and current outputs. Repeat accuracy reaches ±0.5% of full scale, while non-linearity stays within ±0.2% FS. Consequently, you can trust this module for critical temperature monitoring and control loops.
The TM2ALM3LT uses a removable screw terminal block for secure connections. You must use shielded cable for all analog signals to maintain measurement integrity. The module requires an external 24V DC supply with a voltage range of 19.2 to 30V. Current consumption is 50mA from both the external 24V supply and the internal 5V bus. Photocoupler isolation protects the internal logic from channel interference. Dielectric strength is rated at 500V between channels, between I/O and logic, and between I/O and the external supply circuit.
The compact TM2ALM3LT measures only 23.5mm wide, 90mm high, and 70mm deep, saving valuable cabinet space. It weighs just 0.085kg. The module operates reliably in standard industrial environments and integrates easily with M238 controllers on a DIN rail.
1 x Schneider Electric TM2ALM3LT analog I/O module
1 x Removable screw terminal block
1 x Product label
Note: The module does not include the external 24V power supply or shielded cables.
Q1: Which PLCs support the TM2ALM3LT?
The Schneider Electric TM2ALM3LT works with Modicon M238 controllers. It also supports Advantys OTB and Twido platforms.
Q2: Can I connect a PT100 sensor directly?
Yes. The module supports 3-wire Pt probes in the -100 to 500°C range. This includes PT100 sensors.
Q3: What output types does the analog output support?
You can configure the output for 4-20mA current or 0-10V voltage. This gives you flexibility for different actuators.
Q4: Do I need shielded cables for the inputs?
Yes. Schneider Electric recommends shielded cables for all analog inputs. This ensures accurate measurements and reduces interference.
Q5: What is the total acquisition time per channel?
For thermocouples, acquisition time is 60ms per channel plus one controller cycle. Temperature probes acquire faster at 80ms per channel.
Shipping & Delivery
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| Brand Name | |
| Model No. | TM2ALM3LT |
| Product Type | Analog Input/Output Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
