Mitsubishi Electric A800-GN, FR-A820, FR-A840 Instruction Manual

Mitsubishi Electric A800-GN, FR-A820, FR-A840 manual cover
Pages 122
Year 2008
Language(s)
English en
Japanese ja

Mitsubishi Electric A800-GN, FR-A820, FR-A840 Specification

The Mitsubishi Electric A800-GN series, including the FR-A820 and FR-A840 models, represents a sophisticated line of variable frequency drives designed to deliver exceptional performance and flexibility for industrial applications. These drives are engineered to provide precise control over motor speed and torque, enhancing the efficiency and reliability of various automation processes.

The A800-GN series integrates advanced vector control technology, allowing for high-precision motor control even at low speeds. This makes it particularly suitable for applications requiring enhanced load handling and smooth operation. The FR-A820 model is tailored for standard industrial applications, offering a versatile solution with its comprehensive range of power ratings and compatibility with diverse motor types. In contrast, the FR-A840 model is optimized for higher capacity applications, providing robust performance for demanding environments.

Both the FR-A820 and FR-A840 feature a user-friendly interface with an intuitive LCD display, facilitating straightforward setup and monitoring. The drives also incorporate Mitsubishi Electric’s innovative energy-saving algorithms, which optimize power consumption and contribute to reduced operational costs. Safety is a paramount consideration in the design of these drives, with integrated features such as safe torque off (STO) and built-in EMC filters ensuring compliance with international safety standards.

Connectivity is another highlight, with the A800-GN series supporting various communication protocols, including Ethernet/IP, Modbus TCP, and CC-Link, enabling seamless integration into modern industrial networks. The robust design, coupled with advanced thermal management, ensures reliable operation even in harsh environments. Overall, the Mitsubishi Electric A800-GN, FR-A820, and FR-A840 drives offer a blend of performance, efficiency, and adaptability, making them ideal for a wide range of industrial applications.

Mitsubishi Electric A800-GN, FR-A820, FR-A840 F.A.Q.

What is the proper procedure to install the Mitsubishi Electric A800-GN inverter?

To install the A800-GN inverter, ensure the mounting location is well-ventilated and free of dust. Mount the inverter vertically on a non-flammable wall. Connect the power supply and motor leads as per the wiring diagram in the manual, and verify all connections before powering up the inverter.

How can I reset the FR-A820 inverter to factory settings?

To reset the FR-A820 inverter to factory settings, enter the parameter setting mode, and set parameter 77 (Pr. 77) to "1". This will reset all parameters to their default values. Ensure that you back up any important settings before performing the reset.

What are common troubleshooting steps for the FR-A840 when it does not start?

If the FR-A840 does not start, check for any error codes on the display. Ensure that the power supply is correct and all connections are secure. Verify that the start signal is being correctly received by the inverter and that the motor is not overloaded.

How do I perform regular maintenance on the A800-GN inverter?

Regular maintenance for the A800-GN includes inspecting and cleaning the cooling fan and heat sink, checking for loose connections, and ensuring that the environmental conditions remain suitable. Perform these checks every six months to maintain optimal performance.

Can the FR-A820 inverter be used with a three-phase motor?

Yes, the FR-A820 inverter is designed to be compatible with three-phase motors. Ensure that the inverter's power rating matches the motor's requirements and follow the connection guidelines provided in the user manual.

How can I improve the energy efficiency of the FR-A840 inverter system?

To improve energy efficiency, use the FR-A840's built-in energy-saving functions such as automatic energy optimization. Additionally, regularly maintain the system and adjust the motor speed to match load requirements.

What should I do if the A800-GN inverter displays an overvoltage error?

If an overvoltage error is displayed, check the power supply voltage and ensure it is within the specified range. Inspect the braking resistor connections if used, and reduce the deceleration time to prevent voltage spikes during stopping.

Is it possible to control the FR-A820 inverter remotely?

Yes, the FR-A820 inverter can be controlled remotely using communication options such as RS-485 or Ethernet. Configure the communication settings in the inverter's parameters to match the remote control system requirements.

How can I extend the lifespan of the FR-A840 inverter?

To extend the lifespan of the FR-A840, ensure it operates within the recommended environmental conditions, perform regular maintenance, and avoid frequent overloading. Using proper surge protection can also help protect the inverter from voltage spikes.

What is the procedure to update the firmware on the A800-GN inverter?

To update the firmware, connect the A800-GN inverter to a PC using the appropriate communication interface. Use the manufacturer's firmware update tool to upload the new firmware, following the step-by-step instructions provided in the update guide. Ensure the process is not interrupted to prevent corruption.