The OMRON inverter 3G3RX-B4750，part of the OMRON 3 Series, is a high-performance industrial solution designed to meet diverse industrial application needs. As part of the renowned OMRON products lineup, it delivers robust motor control capabilities, flexible parameter settings, and a wide range of communication interfaces. Key functions include high-precision speed control, torque control, and multiple protection mechanisms, making it ideal for applications in machine manufacturing, automated production lines, fan and pump control, and more.
Product Specifications
Rated Power: 45kW, suitable for high-power motor drives.
Power Supply Voltage: Three-phase 400V, compatible with various industrial power grids.
Output Frequency Range: 0.00~400.00Hz, offering a broad speed control range.
Control Modes: Supports V/F control, sensorless vector control, and other advanced modes.
Communication Interface: Standard RS485 interface with Modbus-RTU protocol for easy communication with PLCs and PCs.
Protection Features: Overload, overheat, overvoltage, and undervoltage protection to ensure safe operation.
Product Features
High-Precision Control: The OMRON Inverter excels in high-precision control, leveraging advanced sensorless vector control technology for precise speed and torque control without sensors. Flexible Frequency Setting: Panel operation, external analog signals, digital signals, and RS485 communication, make the OMRON Inverter adaptable to various industrial needs.
Robust protection mechanisms: Ensure stable operation in complex environments, a hallmark of OMRON Products.
Rich Monitoring Functions: Real-time monitoring of output frequency, current, voltage, and temperature simplifies troubleshooting and maintenance.
Applications
Machine Tools: Precise speed control for lathes, milling machines, and other equipment.
Fans and Pumps: Energy-efficient speed control for HVAC and water treatment systems., demonstrating the versatility of OMRON Products.
Conveyor Systems: Speed and start/stop control for logistics and packaging applications.
Automated Production Lines: Multi-speed control and high-precision speed control for automated lines.
Installation and Wiring
Installation Environment: When installing the OMRON Inverter, choose a well-ventilated, dust-free environment free of corrosive gases. Avoid high temperatures, humidity, and strong electromagnetic interference, ensuring the longevity of this OMRON Product.
Wiring Requirements: Follow the wiring diagram in the manual to ensure correct connections of power, signal, and motor cables.
Grounding Protection: Ensure proper grounding to meet national and local electrical safety standards.
Parameter Settings
Basic Parameters: Set motor parameters, control modes, and frequency ranges based on specific application needs.
Advanced Function Configuration: Configure PID control and multi-speed control based on specific application scenarios.
Maintenance and Inspection
Regular Inspection: Check the OMRON inverter for damage, dust accumulation on heat sinks, and proper fan operation.
Parameter Verification: Regularly verify the inverter settings to ensure they match the application requirements.
Fault Diagnosis: When a fault occurs, check the fault code and follow the troubleshooting guide in the manual.
Precautions
Environmental Conditions: Avoid using the inverter, a flagship product in the OMRON 3 Series, in high-temperature, high-humidity, or strong electromagnetic interference environments to ensure performance and longevity. Power Supply Requirements: Ensure stable power supply voltage to prevent damage from voltage fluctuations.
Safe Operation: Avoid contact with live parts during operation to ensure operator safety. Frequently Asked Questions (FAQ)
How to Perform Motor Autotuning?
Importance of Autotuning: Autotuning is crucial for matching the inverter with the motor, enhancing control accuracy and system stability. Motor nameplate parameters must be set during this process.
Precautions During Autotuning: During autotuning, the inverter, that is the OMRON 3 Series, injects current into the motor. Ensure proper connections between the inverter and motor and that the inverter is in a ready state.
Post-Autotuning Effects: After autotuning, the inverter automatically adjusts control parameters based on the actual motor parameters, achieving optimal performance.
How to Configure Communication Interfaces?
Communication Interface Type: The OMRON 3G3RX-B4750, a section of the OMRON 3 Series, supports an RS485 interface with built-in Modbus-RTU protocol. Cable Connection: Use shielded cables for connections and ensure proper grounding of the shielding to reduce electromagnetic interference.
Parameter Settings: Configure the inverter's communication address, baud rate, data bits, and stop bits according to the protocol requirements.
How to Choose the Power Range of the Inverter?
Selection Based on Load Requirements: When choosing the power range of your inverter, it's essential to consider the actual load conditions of your motor. For applications with lighter loads, such as fans and pumps, an inverter with a power rating close to the motor's rated power is usually sufficient. However, for more demanding applications like machine tools or heavy-duty conveyors, where higher starting torque is required, it's advisable to select an inverter with a slightly higher power rating than the motor. For example, if you have a 45kW motor, you might consider an inverter rated at 50kW or higher to ensure stable operation under heavy loads or during startup. Safety Factor Consideration: Always include a safety margin when selecting the inverter's power range. This extra capacity helps handle unexpected load fluctuations and ensures the system remains stable even under peak conditions. A common practice is to choose an inverter with a power rating about 10-20% higher than the motor's rated power. This not only protects the inverter from overloading but also extends its lifespan and reliability.
Overload Capability: While the OMRON 3G3RX-B4750 inverter has some short-term overload capacity, relying on this feature for extended periods can negatively impact its performance and longevity. It's crucial to avoid long-term overloading by selecting an appropriately sized inverter based on your application's maximum expected load. This ensures the inverter operates within its optimal range, maintaining efficiency and reliability.
What Cooling Method Does the Inverter Use?
Cooling Method: The OMRON 3G3RX-B4750 inverter employs forced air cooling, utilizing an internal cooling fan to dissipate heat generated during operation. This method effectively lowers the inverter's temperature, ensuring stable performance even under continuous operation. The cooling fan is designed to maintain a consistent airflow, preventing the inverter from overheating.
Installation Requirements: When installing the inverter, it's important to provide adequate space around it for proper airflow. Avoid placing the inverter in enclosed or poorly ventilated areas, as this can hinder the cooling process and lead to overheating. It's recommended to leave at least 10 centimeters of clearance around the inverter to allow air to circulate freely. This simple measure can significantly enhance the cooling efficiency and prolong the inverter's lifespan.
Maintenance and Care: Regular maintenance is key to ensuring the cooling system operates effectively. Periodically clean the cooling fan and heat sinks to remove dust and debris, which can obstruct airflow and reduce cooling efficiency. Check the fan's operation to ensure it's running smoothly. If the fan is damaged or not functioning properly, replace it promptly to prevent overheating and potential damage to the inverter.
How to Minimize Electromagnetic Interference (EMI) in the 3G3RX-B4750 Inverter? Built-in Filters: The inverter is equipped with built-in EMC filters that comply with relevant electromagnetic compatibility standards. These filters effectively suppress electromagnetic interference, reducing the impact of the inverter's operation on surrounding equipment. By minimizing EMI, the inverter ensures a more stable and reliable performance in complex industrial environments.
Wiring Precautions: When wiring the inverter, avoid routing signal cables close to power cables to minimize electromagnetic interference. Use shielded cables for signal connections and ensure the shielding is properly grounded. It's also advisable to run signal and power cables in separate conduits to further reduce the risk of signal interference. Proper cable management not only enhances signal integrity but also improves the overall reliability of the system.
Grounding Practices: Proper grounding is crucial for minimizing electromagnetic interference. Ensure the inverter is grounded according to national and local electrical safety standards. A low grounding resistance, ideally less than 10Ω, helps create a reliable grounding system that effectively dissipates electromagnetic interference. This simple yet critical step can significantly enhance the system's stability and performance.
What Protection Features Does the 3G3RX-B4750 Inverter Offer?
Overload Protection: When the motor's load exceeds its rated capacity, the inverter automatically reduces the frequency or shuts down to protect both the motor and the inverter. This feature prevents motor damage due to excessive load and ensures the inverter's internal components remain safe. It's particularly useful in applications where load variations are common, such as in conveyor systems or machine tools.
Overheat Protection: The inverter is equipped with internal temperature sensors that monitor its operating temperature. If the temperature rises above the set threshold, the inverter will automatically shut down to prevent heat-related damage. This feature is especially important for applications in high-temperature environments or those requiring continuous operation, such as HVAC systems or industrial fans.
Overvoltage and Undervoltage Protection: The inverter automatically shuts down if the supply voltage is too high or too low, protecting the equipment from voltage fluctuations. Additionally, it includes short-circuit protection and phase loss protection to ensure the system operates safely and reliably. These comprehensive protection mechanisms safeguard the inverter and connected equipment from various electrical anomalies, ensuring long-term stability and reliability.
How to Perform Regular Maintenance on the Inverter?
Visual Inspection: Regularly check the inverter for signs of damage or abnormalities, such as cracks in the enclosure or loose screws. A visual inspection can help identify potential issues early and prevent them from escalating into major faults. It's a simple yet effective way to ensure the inverter remains in good condition.
Cooling System Maintenance: Clean the cooling fan and heat sinks to remove dust and debris that can obstruct airflow. Check the fan's operation to ensure it's running smoothly. If the fan is damaged or not functioning properly, replace it promptly to prevent overheating and potential damage to the inverter. A well-maintained cooling system is crucial for the inverter's long-term performance and reliability.
Electrical Connection Checks: Inspect the power and signal connections to ensure they are secure and making good contact. Loose connections can lead to performance issues or even equipment damage. Additionally, monitor the motor's operation to ensure it's running normally. Promptly address any abnormal conditions to prevent further complications. Reliable electrical connections are vital for the inverter's performance and lifespan.
What Installation Considerations Should Be Taken for the Inverter?
Installation Location: Choose an installation location with good ventilation, free of dust and corrosive gases. Avoid installing the inverter in environments with high temperatures, humidity, or strong electromagnetic interference. A suitable installation environment not only enhances the inverter's performance but also prolongs its lifespan.
Mounting Orientation: Ensure the inverter is mounted vertically to facilitate proper airflow and cooling. Use appropriate mounting methods to minimize the impact of vibrations on the equipment. Vertical installation ensures the cooling fan operates effectively and reduces the risk of damage to internal components due to vibration.
Power Connection: When connecting the power supply, ensure the power cables meet the required specifications and pay attention to the correct phase sequence. Proper grounding is also essential to comply with national and local electrical safety standards. Correct power connections are crucial for the inverter's safe and reliable operation.
How to Choose the Control Mode for the 3G3RX-B4750 Inverter?
Selection Based on Application Needs: Choose the control mode based on your specific application requirements. For applications that demand high-precision speed control, such as machine tools or precision manufacturing equipment, sensorless vector control is the preferred option. For simpler constant-speed control applications, like fans or pumps, V/F control is a suitable choice. Different control modes are designed for different scenarios, so selecting the right one is crucial for optimal performance.
Characteristics of Control Modes: Sensorless vector control offers high-precision speed and torque control, making it ideal for applications where accuracy is paramount. V/F control, on the other hand, is straightforward and easy to use, making it suitable for general constant-speed control applications. Understanding the characteristics of each control mode helps you make an informed decision based on the complexity of your application.
Parameter Settings: After selecting the control mode, configure the inverter's parameters according to your specific application needs to achieve the best control performance. For example, in sensorless vector control mode, you'll need to set the motor parameters to ensure the inverter can accurately control the motor. Proper parameter settings are essential for maximizing the inverter's performance and efficiency.
How to Set Up the Frequency Setting Channel for the Inverter?
Frequency Setting Methods: The inverter offers multiple frequency setting methods, including panel operation, external analog signals, digital signals, and RS485 communication. Choose the method that best suits your application. For example, in an automated production line, external analog signals or digital signals are commonly used for frequency setting.
Signal Source Requirements: When setting up the frequency setting channel, ensure the signal source is stable and accurate. For instance, if you're using an external analog signal for frequency setting, make sure the signal is stable and has good interference resistance. The reliability of the signal source directly affects the inverter's control accuracy.
Parameter Configuration: Configure the inverter's parameters according to the chosen frequency setting method. For example, if you're using an external analog signal, set the input range of the signal and the corresponding frequency range. Proper parameter configuration ensures the inverter operates according to your requirements, providing precise control and efficient performance. By following these guidelines and best practices, you can effectively utilize the OMRON 3G3RX-B4750 inverter to meet your industrial automation needs while ensuring optimal performance, reliability, and longevity.
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.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
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.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
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.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1). Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3). At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
010-64225983
+8613811814778
info@zhongpingtech.com
Building 26, Liyuan Community, Chaoyang District, Beijing, China
