Schneider Electric TM221M32TK

Brand: Schneider
Model: TM221M32TK

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Product features

The Schneider TM221M32TK is a high-performance programmable logic controller (PLC) intended for industrial automation applications. This tiny device, part of the Modicon M221 family, has 16 digital inputs and outputs, including 4 fast inputs and 2 fast outputs for precision control in applications such as packaging machines, HVAC systems, and material handling equipment. With a 24V DC power supply and a tiny size of 70mm x 70mm x 90mm, it fits easily into confined locations and performs reliably in temperatures ranging from -10°C to 55°C.

The TM221M32TK has built-in communication connectors for easy integration, including USB, RS485, RS232, and Ethernet. This enables it to communicate with other devices via protocols such as Modbus RTU and TCP/IP, making it suitable for both standalone and networked applications. Its 10-bit analog inputs (0-10V) and high-speed counter inputs (100 kHz) allow for precise data processing and real-time monitoring, ensuring smooth operation in complex contexts.

Programming the TM221M32TK is simple with Schneider's SoMachine Basic software, which provides user-friendly tools for designing custom automation systems. The PLC also accepts SD card storage (up to 2 GB) for simple program backup and updates, reducing downtime and maintenance requirements. With CE, CSA, and RCM certifications, it meets worldwide safety and reliability standards, making it ideal for use in both conventional and hazardous environments.

Specifications

Product Model	TM221M32TK
Series	Modicon M221 Book-Type Controller
Power Supply Voltage	24 V DC (Wide Voltage Range: 20.4~28.8 V DC)
Dimensions	70 mm (W) × 70 mm (D) × 90 mm (H)
Operating Temperature	-10°C to 55°C
Certifications	CE, cULus, KC, ATEX
Typical Power Consumption	3.5 W (without expansion modules)
Surge Current	35 A (instantaneous)

Application Scenarios

The TM221M32TK is commonly used in water treatment facilities and household water delivery systems. It regulates pump operations using water level data from sensors, guaranteeing continuous water pressure and reducing pump damage from dry runs. Its capacity to manage numerous pumps with automatic switching (e.g., three pumps in a residential project) improves equipment longevity and a consistent water supply.

In manufacturing, this PLC guarantees that packing procedures are precise. In the food and beverage business, it regulates conveyor belts, labeling equipment, and capping devices. The TM221M32TK's high-speed counting function (100 KHz) correctly measures product flow, and its PWM outputs regulate motor speeds to ensure smooth operation. Its tiny shape fits perfectly into the tight places of production lines.

The TM221M32TK automates lighting in commercial buildings and smart cities. It employs occupancy and daylight sensors to turn lights on and off, decreasing energy consumption. In traffic management, it organizes traffic lights using real-time vehicle detection to improve traffic flow. Its built-in Modbus connectivity allows for integration with centralized control systems.

FAQ

Q: What is the Schneider TM221M32TK used for?

A: The Schneider TM221M32TK is a compact programmable logic controller (PLC) designed for industrial automation. It's ideal for packaging machines, textile equipment, and small water pump stations where reliable control and flexibility are needed. With 32 I/O points and expandable modules, it handles tasks like motor control, sensor monitoring, and data communication efficiently.

Q: How many I/O points does the TM221M32TK have?

A: The TM221M32TK comes with 16 discrete inputs (including 4 high-speed inputs for fast counting) and 16 transistor outputs (including 2 high-speed outputs for precise motion control). This setup is perfect for applications requiring quick response times, such as conveyor belts or automated assembly lines.

Q: What communication protocols does the TM221M32TK support?

A: It supports Modbus RTU/ASCII via RS485/RS232 and Modbus TCP via Ethernet. These protocols allow seamless integration with HMIs, sensors, and other devices like the ATV630 frequency drive for remote monitoring and control. The built-in USB port also enables easy programming and data transfer.

Q: What are the power supply requirements for the TM221M32TK?

A: The TM221M32TK operates on 20.4–28.8V DC with a maximum power consumption of 3.5W (without expansion modules). Use a stable power source to prevent voltage fluctuations that could affect performance.

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