Digital guide
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Yokogawa LM21020L0G Digital Indicating Controller Module
Technical Specifications:
- Input signal: Universal input, supporting thermocouple (K, J, T, E, etc.), RTD (Pt100, JPt100), 4-20mA DC current signal and 1-5V DC voltage signal.
- Measurement accuracy: ±0.1% of full scale.
- Control output: Relay contact output (250V AC, 5A), voltage pulse output (12V DC, 100mA), current output (4-20mA DC).
- Working voltage: 100-240V AC, 50/60Hz, power consumption ≤ 15VA.
- Display: 5 – digit LED display, with backlight function, the display value can be read clearly under various lighting conditions.
- Communication interface: RS – 485 (Modbus RTU protocol), baud rate 9600bps – 38400bps optional.
Detailed content
- Functional Characteristics:
- Universal input: Compatible with multiple common sensors and standard signals, which can meet the measurement needs of different process parameters.
- Multiple control modes: Support PID control, on – off control, and position proportional control, which can be flexibly configured according to different control objects.
- Rich alarm functions: It can set high – limit alarm, low – limit alarm, deviation alarm, etc., and can output alarm signals through relay contacts or communication.
- Auto – tuning function: It can automatically calculate the optimal PID parameters according to the characteristics of the controlled object, simplifying the commissioning process.
- Application Scenarios: It is widely used in industrial fields such as petroleum chemical industry, chemical industry, power generation, and food processing. It is used to control process parameters such as temperature, pressure, flow, and liquid level in production equipment such as reaction kettles, heat exchangers, and distillation towers, ensuring the stable operation of the production process and the qualified rate of products.
