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Specification & Description
| Specification | Description |
|---|---|
| Part Number | TM3AI8 |
| Manufacturer | Schneider |
| Product Type | Analogue Input Module |
| Analogue Input Number | 8 |
| Analogue Input Types | Current: 4 to 20 mA, 0 to 20 mA; Voltage: 0 to 10 V, -10 to 10 V |
| Analogue Input Resolution | 12 bits, 11 bits + sign |
| Permissible Continuous Overload | 13 V for voltage input, 40 mA for current input |
| Input Impedance | >= 1 MOhm for voltage, <= 50 Ohm for current |
| LSB Value | 2.44 mV at 0 to 10 V, 4.88 mV at -10 to 10 V, 4.88 µA at 0 to 20 mA, 3.91 µA at 4 to 20 mA |
| Conversion Time | 1 ms + 1 ms per channel + 1 controller cycle time |
| Sampling Duration | <= 1 ms |
| Absolute Accuracy Error | +/- 0.2 % of full scale at 25 °C, +/- 1 % of full scale |
| Temperature Drift | +/- 0.01 %FS/°C |
| Repeat Accuracy | +/-0.5 %FS |
| Non-Linearity | +/- 0.2 %FS |
| Cross Talk | <= 1 LSB |
| Rated Supply Voltage | 24 V DC |
| Supply Voltage Limits | 20.4 to 28.8 V |
| Type of Cable | Twisted shielded pairs cable <= 30 m for input circuit |
| Current Consumption | 40 mA at 5 V DC (full load) via bus connector, 30 mA at 24 V DC (no load) via external supply |
| Local Signalling | 1 LED green for PWR |
| Electrical Connection | 10 x 1.5 mm² removable screw terminal block with pitch 3.81 mm |
| Insulation | 500 V AC between input and internal logic, 1500 V AC between input and supply |
| Mounting Support | Top hat type TH35-15 rail conforming to IEC 60715, Plate or panel with fixing kit |
| Dimensions | Height: 90 mm, Depth: 70 mm, Width: 23.6 mm |
| Net Weight | 0.11 kg |
| Environmental Compliance | Green Premium product, RoHS compliant, PVC free, Mercury free |
The Schneider TM3AI8 is a versatile analogue input module designed to cater to a broad range of industrial automation needs. This compact module is engineered to seamlessly integrate with Modicon M221, M241, M251, and M262 controllers, offering a streamlined solution for complex control systems. With its eight analogue inputs, the TM3AI8 can handle a variety of signal types, including current ranges from 4 to 20 mA and 0 to 20 mA, as well as voltage ranges from 0 to 10 V and -10 to 10 V.
Precision is at the heart of the TM3AI8's design, boasting a 12-bit resolution for accurate data capture and an 11-bit resolution with sign for differential measurements. The module ensures reliable performance with an input impedance of >= 1 MOhm for voltage and <= 50 Ohm for current, catering to a wide array of sensors and transducers. The TM3AI8's conversion time is swift, with a 1 ms response per channel plus one controller cycle time, ensuring timely and efficient processing of input signals.
The module's robust construction includes a green LED for power status indication and a removable screw terminal block with a 3.81 mm pitch for secure and convenient wiring. It is designed to withstand industrial environments with a rated supply voltage of 24 V DC and supply voltage limits between 20.4 to 28.8 V. The TM3AI8 is also equipped to handle various environmental conditions, certified with a CE marking and conforming to international standards such as EN/IEC 61131-2 and EN/IEC 61010-2-201.
Mounting the TM3AI8 is straightforward, thanks to its compatibility with top hat type TH35-15 and TH35-7.5 rails in accordance with IEC 60715, as well as the option for plate or panel mounting with a fixing kit. This flexibility ensures that the module can be easily incorporated into a wide range of control panels and equipment.
The Schneider TM3AI8 analogue input module is a reliable and precise solution for industrial automation applications, offering a blend of performance, durability, and ease of use. Its compact size and comprehensive features make it an excellent choice for system integrators and engineers looking to enhance their control systems with high-quality analogue signal processing.
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Frequently Asked Questions
What types of signals can the analogue input module process?
The module is capable of processing both current and voltage signals. It accepts current signals in the range of 4 to 20 mA or 0 to 20 mA, and voltage signals in the range of 0 to 10 V or -10 to 10 V.
What is the resolution of the analogue inputs?
The analogue inputs have a resolution of 12 bits for unipolar signals and 11 bits plus sign for bipolar signals, providing precise measurement capabilities.
Can the module be mounted on a DIN rail?
Yes, the module is designed for mounting on a top hat type TH35-15 rail conforming to IEC 60715, as well as a top hat type TH35-7.5 rail.
What is the power supply voltage required for the module?
The module requires a 24 V DC power supply, with acceptable voltage limits ranging from 20.4 to 28.8 V.
How does the module indicate its operational status?
The module is equipped with a green LED that lights up to indicate power (PWR), providing a quick visual confirmation of its operational status.
What is the maximum permissible continuous overload for the inputs?
The inputs can tolerate a continuous overload of up to 13 V for voltage inputs and 40 mA for current inputs, ensuring robust performance in various conditions.
What type of electrical connection does the module use?
The module uses a removable screw terminal block with a pitch of 3.81 mm for easy and secure electrical connections.
Is the module compliant with environmental regulations?
Yes, the module is a Green Premium product, which means it complies with key environmental regulations and is free from harmful substances such as mercury and certain heavy metals.
What is the operating temperature range for the module?
The module can operate within an ambient temperature range of -10 to 55 °C for horizontal installation and -10 to 35 °C for vertical installation.
How is the module protected against electrical disturbances?
The module has insulation rated at 500 V AC between input and internal logic, and 1500 V AC between input and supply. It also has surge withstand protection and is resistant to electrostatic discharge, electromagnetic fields, and fast transients.
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