Description
Parameter Specifications
- Power Supply: The A404K usually operates on a 24V DC power supply, with a power consumption around 8 – 12W. This low – power design is energy – efficient for continuous operation in industrial settings.
- Input/Output Channels: It features 12 digital input channels that can receive signals from various sensors such as proximity sensors, limit switches, and photoelectric sensors. There are also 12 digital output channels for controlling actuators like solenoid valves, relays, and indicator lights.
- Communication Interface: It comes with an RS – 485 communication interface, supporting the Modbus RTU protocol. This allows for easy connection to other devices in an industrial network, enabling data exchange and remote monitoring.
- Operating Temperature Range: Designed to work within a temperature range of – 15°C to 55°C, making it suitable for different industrial environments, including those with some temperature variations.
Applications
- Industrial Automation: In manufacturing plants, the A404K can be used to control and monitor simple production processes. For example, it can control the movement of a small – scale conveyor system based on the signals from sensors detecting the presence of products.
- Agricultural Automation: In greenhouses, it can be used to monitor environmental parameters such as temperature and humidity through connected sensors and control ventilation fans or heaters accordingly.
- Building Automation: In small commercial buildings, it can be used for basic control tasks such as controlling the lighting system based on occupancy sensors or monitoring the status of door locks.
Weight and Dimensions
- Weight: Approximately 0.4 kg, which is relatively light and easy to handle during installation and maintenance.
- Dimensions: It has a compact design, with dimensions of about 110mm (length) x 90mm (width) x 35mm (height). This small size allows it to be easily installed in control boxes or other limited – space areas.
Features
- Compact and Lightweight: Its small size and low weight make it highly portable and easy to integrate into various systems without taking up much space.
- Easy Configuration: Configuration is simple and straightforward. Users can set up input/output functions, communication parameters, and other settings through software or DIP switches, reducing the complexity of installation and operation.
- Cost – Effective: It offers a cost – effective solution for basic automation and control tasks, especially for small – scale applications where high – end features are not necessary.
Stability and Reliability
- Solid Construction: Built with quality components and a durable enclosure, it can withstand normal industrial vibrations, minor shocks, and dust.
- Electrical Isolation: It provides electrical isolation between input/output channels and the power supply, protecting the device from electrical interference and ensuring stable signal transmission.
- Long – term Testing: Through long – term testing, it has been proven to have a reliable performance over time, with a low failure rate.
Practical Case
In a small – scale woodworking workshop, the A404K is used to control a simple cutting machine. The digital input channels are connected to sensors that detect the position of the wood on the cutting table. When the wood reaches the appropriate position, the A404K sends a signal through the digital output channel to activate the cutting blade. One day, there was a brief power outage in the workshop. However, due to the electrical isolation feature of the A404K, the device retained its configuration and was able to resume normal operation immediately after the power was restored. The cost – effective and reliable performance of the A404K ensured the smooth operation of the wood – cutting process.
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