Triconex AO3481 Triple Modular Redundant Analog Output Module

Description

• • Physical and Environmental Parameters
    • Operating Temperature: It operates stably within 0°C to 70°C, and can withstand the extreme temperature range of -40°C to 85°C when not in operation.
    • Humidity Adaptability: It works normally in an environment with 5% to 95% non-condensing humidity.
    • Mechanical Resistance: It resists 10g half-sine wave shock for 11ms. It can endure vibration of 1mm peak-to-peak in the frequency range of 2Hz to 13.2Hz and 0.7g vibration in the frequency range of 13.2Hz to 150Hz.
    • Protection Level and Contamination Resistance: It has an IP20 protection level and complies with ISA-S71.04 – 1985 Class G3 standards for resistance to airborne contaminants.
    • Compatibility: It is fully compatible with Triconex baseplates of models 2481 and 2483.
• Functional Features
  • Triple Modular Redundant and Voting Mechanism: The module is built with three independent electronic channel groups. Each group independently receives data from the corresponding main processor, and the voting circuit selects the output-driven channel. Special circuits shunt non-output-driven channels to prevent them from interfering with the final output and ensure the stability of the output signal.
  • Fast Fault Response: The typical switching time when a single channel fails is 1 millisecond, and the maximum switching time does not exceed 3 milliseconds. This rapid response speed ensures that the module can quickly switch to a normal working channel when a fault occurs, without interrupting the continuous output of control signals.
  • Forced-Switch Diagnostic Function: It is equipped with a forced-switch diagnostic function that can actively detect potential faults in the module’s channels and related circuits. Timely fault discovery helps maintenance personnel carry out targeted repairs quickly, avoiding production accidents caused by module failures and improving the overall operational reliability of the industrial control system.
  • Stable and Precise Output Performance: It maintains high output accuracy within a wide operating temperature range and provides a clear over-range output capacity. It can meet the precise control needs of different industrial actuators and ensure that equipment such as valves and motors operate according to the set parameters.
  • Strong Adaptability to Power and Load: It supports external loop power supply with reverse voltage protection. It can adapt to multiple load and matching voltage combinations, which allows the module to be flexibly integrated into different industrial circuit designs without being restricted by a single load condition.
• Application Scenarios
  • Oil and Gas Industry: It is widely used in onshore oilfields and offshore drilling platforms. It converts digital control signals into 4 – 20mA analog signals to control the opening and closing of pipeline valves and the operation of pumping equipment. It ensures the stable transportation of oil and gas and accurately adjusts the transportation flow according to the system instructions, and quickly cuts off the transmission through signal control when leakage is detected.
  • Chemical Industry: It is deployed in chemical reactor and material conveying systems. It controls the operation of dosing pumps, regulating valves and other equipment by outputting precise analog signals. It accurately adjusts parameters such as the dosage of chemical raw materials and the flow rate of reaction materials, maintains the stability of chemical reactions, and avoids dangerous reactions caused by improper parameter control.
  • Power Generation Industry: It is applied in thermal power, hydropower and other power plants. In thermal power plants, it controls the opening of boiler feed water valves and the speed of induced draft fans through analog signals to maintain the stable combustion of the boiler. In hydropower plants, it regulates the opening of water turbine guide vanes to control the power generation output and ensure the stable operation of the power generation system.
  • Manufacturing Industry: It is integrated into automated production lines such as metallurgy and papermaking. In the metallurgical field, it controls the opening of smelting furnace temperature control valves and material feeding mechanisms to ensure the stability of the smelting temperature and material ratio. In the papermaking field, it adjusts the speed of pulp conveying pumps and the opening of paper thickness control valves to ensure the uniformity and stability of paper quality.