The MITSUBISHI ELECTRIC Frequency Drive phase converter FR-E740-11K-CHT is a high-performance motor frequency converter in the FR-E700 series, specially designed for 11kW motors. Operating with a 3-phase 380-480V input voltage, it delivers a rated output current of 23A. This 3-phase frequency converter is engineered with advanced flux vector control technology, ensuring precise speed and torque control. It is ideal for various industrial applications, including conveyor systems, fans, and pumps, contributing to efficient industrial automation.
Product Details
Product Specifications
Motor Capacity: Suitable for 11kW motors.
Rated Input Voltage: 3-phase 380-480V.
Rated Output Current: 23A.
Overload Capacity: 150% for 60 seconds, 200% for 3 seconds.
Control Modes: V/F control, flux vector control.
Communication Interface: Standard RS485, supporting Modbus-RTU protocol.
Protection Features: Overload, overheat, overvoltage, undervoltage, and short-circuit protection.
Cooling Method: Forced air cooling.
Protection Rating: IP20.
Weight: Approximately 5.9kg.
Product Features
High-Precision Control: Utilizing flux vector control, this motor frequency converter ensures stable motor operation, even without sensors.
Energy-Saving Function: The optimal excitation control adjusts motor efficiency based on load changes, reducing energy consumption.
Multiple Control Modes: Offers versatile control options, including V/F control and flux vector control, suitable for a range of applications.
Advanced Communication Capabilities: The 3-phase frequency converter features an RS485 interface with Modbus-RTU protocol, allowing for easy integration with PLCs, PCs, and other devices.
Rich Expansion Options: Includes functions like PID control and multi-speed control
Applications
This versatile unit finds use in a range of industrial scenarios:
Conveyor Systems: The motor frequency converter efficiently manages start‑stop operations and speed variations in logistics, packaging, and food processing.
Fan & Pump Systems: As a reliable 3‑phase frequency converter, it helps regulate fan and pump speeds in HVAC, water treatment, and chemical processing.
Machine Tools: Ensure precision in lathes and drilling machines with this motor frequency converter that offers consistent speed control.
Textile Machinery: Achieve accurate speed and tension control with the help of this 3‑phase frequency converter and the advanced control of its frequency drive phase converter.
Usage Instructions
Installation and Wiring
Installation Environment: Install in a dust-free, non-corrosive area with minimal electromagnetic interference and good ventilation.
Wiring Guidelines: Refer to the manual’s wiring diagram to connect the power, signal, and motor lines properly.
Grounding: Ensure proper grounding per national and local electrical safety standards.
Parameter Settings
Basic Settings: Configure motor parameters, control modes, and frequency ranges based on the application requirements.
Advanced Settings: Utilize advanced features like PID control and multi-speed control where necessary.
Maintenance
Routine Checks: Regularly inspect the frequency drive phase converter for dust buildup and ensure the cooling fan is operating correctly.
Parameter Validation: Frequently verify that the settings of your motor frequency converter match your operational needs.
Troubleshooting: Refer to the troubleshooting guide and fault codes in the manual if issues arise with the 3‑phase frequency converter.
Precautions
Environment: Avoid installation in areas with extreme temperatures, high humidity, or heavy electromagnetic interference.
Power Stability: Ensure a stable voltage supply to protect your motor frequency converter from power fluctuations.
Safety: Never touch live components during operation for safety reasons.
Common Questions (FAQ)
How to Set the Frequency Reference Channel?
Methods: Configure frequency using the panel, external analog signals, or digital signals.
Signal Stability: Ensure the reference signal’s stability and accuracy.
Parameter Setup: Adjust settings to match the reference method (e.g., for analog signals, set input and frequency ranges).
How to Configure the Communication Interface?
Supported Interface: RS485 with Modbus-RTU protocol.
Connection: Use shielded cables and ensure proper grounding to reduce interference.
Parameter Setup: Set address, baud rate, and stop bits to align with the connected device.
How to Choose the Right Control Mode?
Application Needs: For high-precision applications, use sensorless vector control; for constant-speed tasks, use V/F control.
Mode Features: Sensorless vector control provides high accuracy, while V/F control is simpler for basic operations.
Configuration: Adjust parameters based on the selected control mode for optimal performance.
What is the Cooling Method?
Cooling Type: Forced air cooling with an internal fan.
Requirements: Ensure adequate space around the inverter for proper airflow and clean fans regularly.
How to Avoid Electromagnetic Interference?
Built-in Filters: The 3-phase frequency converter comes with EMC filters to suppress interference.
Wiring: Separate power and signal lines, use shielded cables, and ensure proper grounding.
What Protection Features Does the Inverter Offer?
Overload Protection: Reduces frequency or stops operation when the load exceeds the limit.
Overheat Protection: Shuts down when internal temperatures are too high.
Voltage Protection: Protects against overvoltage and undervoltage conditions.
How to Perform Regular Maintenance?
Visual Inspection: Check for cracks, damage, or loose components.
Cooling System Care: Clean fans and heat sinks, and replace faulty fans.
Electrical Checks: Ensure secure connections and promptly address issues.
What are the Installation Best Practices?
Location: Install in a well-ventilated, non-corrosive environment.
Orientation: Ensure vertical installation for proper cooling.
Power Connection: Verify proper phase sequence and grounding.
How to Perform Motor Autotuning?
Purpose: Optimizes the motor-inverter match for system stability.
Procedure: Input motor parameters (e.g., power, voltage, current) before autotuning.
Precautions: Keep the motor stationary during autotuning.
How Does the Energy-Saving Function Work?
Principle: The frequency drive adjusts motor efficiency dynamically based on load variations.
Benefits: Reduces energy consumption, especially under light or variable loads.
Configuration: Enable and fine-tune energy-saving mode through parameter settings.
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
