TRICONEX 3805E high-speed frequency/pulse input module

Functional characteristics

Multi-channel high-speed acquisition: Generally equipped with multiple independent input channels (commonly 8 channels), it can simultaneously perform high-speed acquisition of multiple frequency or pulse signals, quickly and accurately obtaining key information such as frequency, rotational speed, and count of on-site equipment, meeting the multi-parameter monitoring requirements in complex industrial scenarios.

Wide-range signal compatibility: It can be compatible with various types of frequency and pulse signals, covering signals of different amplitudes and frequency ranges. For instance, it can handle signals ranging from low-frequency equipment status monitoring to high-frequency motor speed feedback, and is applicable to different types of sensors and field devices.

High-precision measurement: It features high measurement accuracy and resolution, capable of accurately capturing the quantity and frequency changes of pulses, providing precise data support for the control system and ensuring the stability of the production process and the consistency of product quality.

Triple Modular Redundancy (TMR) design: It adopts a triple modular redundancy architecture, with the module internally divided into three independent channels to process input signals in parallel and output results through a specific voting mechanism. This enables the module to operate normally and reliably even when one of the channels fails, significantly enhancing the module's reliability and fault tolerance. It meets high-level safety integrity requirements such as SIL3 and is suitable for safety-critical systems.

Real-time fault diagnosis: Equipped with a powerful self-diagnosis function, it can monitor the module's own working status in real time, including power anomalies, channel faults, communication faults, etc. Once a fault is detected, an alarm signal will be promptly issued, and the fault information will be visually presented through indicator lights and other means, facilitating maintenance personnel to quickly locate and eliminate the fault, reducing system maintenance costs and downtime risks.

Electrical isolation protection: It has excellent electrical isolation performance between each channel and between the module and other parts of the system, effectively suppressing electromagnetic interference and common-mode interference, ensuring the accuracy and stability of signal acquisition in complex electromagnetic environments, and enhancing the module's anti-interference ability and reliability.

Technical parameters

Number of input channels: Usually 8 channels, which can be independently configured and used.

Input signal type: Supports multiple frequencies and pulse signals, such as square waves, sine waves, etc. The frequency range is generally wide, such as 0-100 KHZ or even higher, which can meet the signal frequency requirements in different industrial application scenarios.

Amplitude range: It can adapt to input signals of different amplitudes, such as 0-30VDC, etc. The specific range varies according to the model.

Resolution: It features a high resolution, capable of precisely measuring the number and frequency of pulses. Common resolutions can meet the high-precision measurement requirements in industrial sites.

Measurement accuracy: Under certain working conditions, the measurement accuracy can reach a relatively high level, such as ±0.1%, etc.

Sampling rate: The sampling rate is relatively fast, enabling rapid response to changes in input signals and timely and accurate acquisition of signal data.

Working voltage: Generally, 24VDC DC power supply is adopted, allowing for a certain range of voltage fluctuations (such as ±15%) to adapt to the complex power supply environment in industrial sites.

Isolation voltage: The isolation voltage between channels and between the module and the backplane is relatively high. For instance, the isolation voltage between channels can reach 500VDC, and that between the module and the backplane can reach 2500VDC, effectively ensuring electrical safety and signal stability.

Application scenarios

Petrochemical industry: It is used to monitor the rotational speed, vibration frequency, etc. of equipment such as compressors and pumps, ensuring the good operating condition of the equipment, promptly detecting abnormalities and taking measures to avoid production accidents or economic losses caused by equipment failures. In flow measurement, by collecting the pulse signals emitted by the flowmeter, the material flow rate is accurately calculated, providing key data for the control of the production process.

In the power industry: In generator sets, monitor the rotational speed of steam turbines and water turbines to ensure the stable operation of power generation equipment; The collection and analysis of high-frequency signals in power systems can be used for fault diagnosis and rapid response of protection systems.

Metallurgical industry: During the steel rolling process, parameters such as the rotational speed of the rolls and the pulse changes of the rolling force are monitored to achieve precise control of the rolling process and ensure the quality of steel. In blast furnace ironmaking, by collecting the frequency and pulse signals of relevant equipment, the production process status is monitored in real time and the production technology is optimized.

Manufacturing industry: On automated production lines, monitoring of motor speed, pulse counting during conveyor belt operation, etc., is carried out to achieve automated control of the production process and quality traceability. In CNC machine tools, signals such as spindle speed and feed pulses are collected to ensure processing accuracy and production efficiency.