The Fuji FRN75F1S-4C is a high-performance AC variable speed drive produced by Fuji Electric Co., Ltd., widely used in industrial automation. This drive offers superior performance and a wide range of functions, with a rational structure, excellent heat dissipation, and flexible configuration, meeting the needs of various customers. It is primarily designed for three-phase asynchronous AC motors, controlling and regulating motor speed by adjusting the power supply frequency to achieve energy savings and speed control. As a high-performance variable speed drive, the FRN75F1S-4C provides efficient motor control solutions for a variety of industrial applications.
Product Specifications
Model: FRN75F1S-4C
Rated Power: 75kW
Rated Voltage: Three-phase AC380V
Rated Current: 139A
Application Range: Fans, pumps, general-purpose
Control Methods: Supports multiple control methods, including PID control
Protection Functions: Overload, overheat, overvoltage, undervoltage, and other protection functions
Communication Interface: Standard RS485 interface, supporting Modbus RTU protocol
Environmental Adaptability: Suitable for various industrial environments with good heat dissipation performance
Product Features
Superior Performance: The Fuji FRN75F1S-4C can achieve high-precision speed control and rapid torque response, maintaining stable output even at low frequencies. As an advanced variable speed drive, it excels in speed control and energy savings.
Rich Functionality: It offers frequency/variable frequency switching, complete PID control functions, momentary power loss restart, and more, meeting complex application requirements.
Flexible Configuration: It supports various frequency setting methods, including the operation panel, analog input, and multi-step frequency setting, allowing users to configure according to actual needs.
User-Friendly Operation: Equipped with a multifunctional operation panel, it supports remote operation and function code copying, making it convenient for users to set parameters and monitor.
Eco-Friendly Design: Some models are equipped with built-in DC reactors that effectively suppress harmonic distortion, meeting modern industrial environmental requirements.
Applications
The Fuji FRN75F1S-4C is widely used in the following fields:
Metallurgy, Oil, and Chemicals: Used to regulate the speed of fans and pumps to achieve energy savings. In these scenarios, the variable speed drive significantly reduces energy consumption and improves production efficiency.
Textiles and Papermaking: Controls the speed of conveyors and winding machines to improve production efficiency. By precisely controlling speed, it ensures stable production processes and product quality.
Food and Pharmaceuticals: Used in mixers, grinders, and other equipment to ensure precise control of production processes. In these industries, the high-precision control capability of the variable speed drive is particularly important.
HVAC and Wastewater Treatment: Regulates the operation of fans and pumps to optimize system performance. Through variable frequency speed control, it achieves energy savings and efficient operation.
Instructions for Use
Installation and Wiring
Installation Environment: Choose a well-ventilated, dust-free, and non-corrosive gas environment, avoiding high temperatures, high humidity, and strong electromagnetic interference. A good installation environment helps extend the lifespan of the variable speed drive.
Wiring Requirements: Follow the manual strictly for wiring, ensuring the correct connection of power lines, signal lines, and motor lines. Correct wiring is key to the normal operation of the equipment.
Grounding Protection: Ensure proper grounding of the equipment in accordance with electrical safety standards. Grounding protection not only helps prevent electromagnetic interference but also ensures the safety of operators.
Parameter Settings
Basic Parameters: Set the rated power, voltage, current, and other parameters according to the motor nameplate. Correct parameter settings are the foundation for the normal operation of the variable speed drive.
Control Methods: Choose the appropriate control mode according to application needs, such as V/F control or vector control. Different control methods are suitable for different application scenarios, and users can make choices based on actual needs.
Advanced Functions: Configure PID control, multi-speed control, and other functions to meet complex control requirements. These advanced functions can further enhance the performance and flexibility of the variable speed drive.
Maintenance and Inspection
Regular Inspection: Check the heat sink and fan for normal operation, clean dust, and ensure the heat dissipation system is unobstructed. Good heat dissipation is an important guarantee for the stable operation of the variable speed drive.
Parameter Verification: Regularly verify the parameter settings of the variable frequency drive to ensure they match the actual requirements. Parameter verification ensures that the equipment always operates in the best condition.
Fault Diagnosis: Diagnose and address equipment issues based on fault codes. Timely fault handling reduces downtime and improves equipment availability.
Precautions
Environmental Conditions: Avoid using in extreme environments, as they may affect performance and lifespan. Extreme environments can have adverse effects on the performance of the variable speed drive.
Power Supply Requirements: Ensure stable power voltage to prevent damage to the equipment from voltage fluctuations. Stable power supply is crucial for the normal operation of the equipment.
Safe Operation: Avoid contact with live parts during equipment operation, and disconnect power and discharge before maintenance. Safe operation can effectively prevent accidents.
Frequently Asked Questions (FAQ)
How to perform motor autotuning?
Importance of Motor Autotuning: Autotuning is a crucial step to ensure the compatibility between the variable frequency drive and the motor, improving control accuracy and system stability. It involves setting the motor nameplate parameters, including power, voltage, current, etc. Through autotuning, the variable speed drive can better adapt to the motor characteristics.
Precautions During Autotuning: Ensure the motor and variable frequency drive are correctly connected, the drive is in a ready state, and the motor is stationary. Correct connections and status are key to successful autotuning.
Effects After Autotuning: After autotuning, the drive will automatically adjust control parameters based on the actual motor parameters to achieve optimal operation. This helps improve system response speed and control accuracy, meeting the requirements of high-precision control applications.
How to configure the communication interface of the FRN75F1S-4C variable frequency drive?
Communication Interface Type: Built-in Modbus-RTU protocol, supporting RS485 communication interface. Through these interfaces, the variable speed drive can communicate with upper-level machines or other devices.
Communication Line Connection: Use shielded cables for connection, ensuring the shield layer is properly grounded to reduce electromagnetic interference. Good communication line connection is key to ensuring stable data transmission.
Communication Parameter Settings: Set communication address, baud rate, data bits, stop bits, and other parameters to match those of the upper-level machine. Correct parameter settings are the foundation for reliable communication.
How to select the power range of the variable frequency drive?
Select Based on Load Requirements: Choose the appropriate power range based on the actual load conditions of the motor. If the load is heavy or there is a high starting torque requirement, select a drive with a slightly higher power rating. The appropriate power range ensures stable operation of the variable speed drive under various working conditions.
Consider Safety Factor: It is recommended to select a variable frequency drive with a slightly higher power rating than the motor's rated power to handle load fluctuations and unexpected situations. A safety factor can improve the reliability and lifespan of the equipment.
Overload Capability: Although the drive has some overload capacity, long-term overload can affect its lifespan and performance and should be avoided. Proper power selection can prevent equipment damage due to overload.
What is the cooling method of the FRN75F1S-4C variable frequency drive?
Cooling Method Introduction: The FRN75F1S-4C variable frequency drive uses forced air cooling, with an internal cooling fan for heat dissipation, ensuring stable temperatures during high-power operation. Good cooling is an important guarantee for the stable operation of the variable speed drive.
Installation Requirements: When installing the drive, ensure there is sufficient space around it for air circulation. Avoid installing the drive in enclosed or poorly ventilated environments, which can affect heat dissipation. It is recommended to maintain at least 10 centimeters of clearance around the drive for free air flow.
Maintenance and Care: Regularly clean dust from fans and heat sinks to effectively prevent overheating due to poor heat dissipation. Also, check the fan's operation to ensure it is working properly. If abnormal noise or fan stoppage is detected, replace the fan promptly to avoid damage to the variable speed drive due to insufficient cooling.
How to avoid electromagnetic interference of the FRN75F1S-4C variable frequency drive?
Role of Built-in Filters: The drive is equipped with built-in EMC filters that meet relevant electromagnetic compatibility standards, effectively suppressing electromagnetic interference and reducing its impact on external devices. Built-in filters are an important means for the variable speed drive to reduce electromagnetic interference.
Wiring Precautions: When wiring, avoid placing signal lines close to power lines to reduce electromagnetic interference. Use shielded cables for signal line connections and ensure proper grounding of the shield layer. Good wiring can effectively reduce the impact of electromagnetic interference on the variable speed drive.
Grounding Measures: Proper grounding is an important means to reduce electromagnetic interference. Ensure the equipment is properly grounded and complies with national and local electrical safety standards. The grounding resistance should be less than 4 ohms to ensure the effectiveness of the grounding system.
What protection functions does the FRN75F1S-4C variable frequency drive have?
Overload Protection: When the motor load exceeds the rated value, the drive will automatically reduce the frequency or stop running to protect the motor and the drive from damage. Overload protection is one of the important protection functions of the variable speed drive.
Overheat Protection: The drive is equipped with temperature sensors that automatically shut down the system when the temperature exceeds the set value, preventing damage from overheating. Overheat protection can effectively extend the lifespan of the variable speed drive.
Overvoltage and Undervoltage Protection: The drive will automatically shut down when the power supply voltage is too high or too low to protect the equipment. Additionally, it features short-circuit and phase-loss protection functions to ensure the safe operation of the system.
How to perform regular maintenance on the variable frequency drive?
Visual Inspection: Regularly check the drive's exterior for damage or abnormalities, such as cracks in the housing or loose screws. Ensure all fastening screws are tightened to prevent equipment failures due to loosening. Visual inspection is an important part of variable speed drive maintenance.
Cooling System Maintenance: Clean dust from fans and heat sinks to ensure the normal operation of the cooling system. Check the fan's operation, and replace it promptly if any abnormalities are detected. Proper cooling system maintenance ensures the stable operation of the variable speed drive.
Electrical Connection Check: Inspect the connections of power and signal lines to ensure they are secure and make good contact. Also, check the operating condition of the motor to promptly identify and address any issues. Electrical connection checks are key to ensuring the safe operation of the variable speed drive.
What should be considered when installing the variable frequency drive?
Installation Location: Choose a well-ventilated, dust-free, and non-corrosive gas environment for installation, avoiding high temperatures, high humidity, or strong electromagnetic interference. A good installation location can extend the lifespan of the variable speed drive.
Installation Method: Ensure the drive is installed vertically to facilitate heat dissipation. Use appropriate fixing methods during installation to prevent vibration from affecting the equipment. The correct installation method can improve the stability and reliability of the variable speed drive.
Power Connection: When connecting the power supply, ensure the power line specifications meet the requirements and pay attention to the correct phase sequence. Also, ensure proper grounding of the equipment in accordance with electrical safety standards. Correct power connection is the basis for the normal operation of the variable speed drive.
How to select the control mode of the FRN75F1S-4C variable frequency drive?
Select Based on Application Needs: For applications requiring high-precision speed control, choose the sensorless vector control mode; for general constant-speed control applications, choose the V/F control mode. Different control modes are suitable for different application scenarios, and users can select the appropriate mode based on actual needs.
Control Mode Features: Sensorless vector control mode can achieve high-precision speed and torque control, suitable for applications with high control accuracy requirements; V/F control mode is simple and easy to use, suitable for general constant-speed control. Choosing the appropriate control mode can fully leverage the performance advantages of the variable speed drive.
Parameter Settings: After selecting the control mode, configure the parameters according to the specific application needs to achieve the best control effect. Correct parameter settings are key to ensuring the efficient operation of the variable speed drive.
How to set the frequency setting channel of the variable frequency drive?
Frequency Setting Methods: The frequency can be set through the drive panel, external analog signals, or digital signals. Users can choose the appropriate frequency setting method based on actual application needs. Flexible frequency setting methods enhance the applicability of the variable speed drive.
Signal Source Requirements: When setting the frequency setting channel, ensure the stability and accuracy of the signal source. For example, when using external analog signals for frequency setting, ensure the stability and interference resistance of the signal. High-quality signal sources ensure the stable operation of the variable speed drive.
Parameter Configuration: Configure the parameters according to the selected frequency setting method. For example, for external analog signal setting, set the input range of the signal and the corresponding frequency range. Correct parameter configuration is the basis for ensuring the efficient operation of the variable speed drive.
How can the FRN75F1S-4C variable frequency drive be integrated with a vfd converter for high-precision applications?
Compatibility and Configuration: The FRN75F1S-4C variable frequency drive can be seamlessly integrated with a vfd converter to achieve high-precision control. This integration is particularly useful in applications requiring precise positioning and speed control, such as robotic arms, CNC machines, and automated production lines. The key to successful integration lies in proper configuration and parameter tuning.
The FUJI FRN75F1S-4C is a high-performance variable speed drive designed for industrial applications, offering precise control and energy efficiency. This 75kW, 380V drive is particularly well-suited for use with ac servo motors, providing high-precision speed and torque control.The FUJI FRN75F1S-4C is an excellent choice for applications requiring high-precision control and energy efficiency, making it a suitable match for ac servo motors in various industrial settings.The FUJI FRN75F1S-4C variable frequency drive is specifically engineered to enhance the performance of ac servo motors, enabling precise speed regulation and improved operational efficiency in demanding industrial environments.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a one-stop integrated service provider of intelligent manufacturing, belongs to the Gong Doctor Group, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
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PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
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We have a large inventory of goods and have our own warehouse.
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Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
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If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
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