Contents

FR-A8AN INSTRUCTION MANUAL
Safety instructions
CONTENTS
1 PRE-OPERATION INSTRUCTIONS
- 1.1 Unpacking and checking the product
  - 1.1.1 Product confirmation
  - 1.1.2 SERIAL number check
- 1.2 Component names
- 1.3 Specifications
2 INSTALLATION
- 2.1 Pre-installation instructions
- 2.2 Installation procedure
- 2.3 Wiring
3 ANALOG CURRENT INPUT
- 3.1 Wiring example
- 3.2 Internal block diagram
- 3.3 Terminals
- 3.4 Analog current input function parameter list
- 3.5 Setting and adjustment of analog current input
  - 3.5.1 Analog input selection
  - 3.5.2 Bias and gain of frequency setting current (Pr. 125, Pr. 241, C2(Pr. 902) to C4(Pr. 903))
  - 3.5.3 Adjustment of analog input
4 ANALOG CURRENT OUTPUT
- 4.1 Wiring example
- 4.2 Internal block diagram
- 4.3 Terminals
- 4.4 Analog current output function parameter list
  - 4.4.1 Setting of analog output signal voltage/current switchover (Pr. 309)
  - 4.4.2 Calibration of meter
  - 4.4.3 Output signal setting
  - 4.4.4 Analog signal adjustment (Pr. 307, Pr. 308, Pr. 311, Pr. 312, Pr. 323, Pr. 324)
- 4.5 Instructions
REVISIONS

Mitsubishi FR-A8AN Instruction Manual

Mitsubishi FR-A8AN Inverter manual cover

Pages 34

Year 2014

Language(s)

of 34

Mitsubishi FR-A8AN Inverter Specification

The Mitsubishi FR-A8AN Inverter is a sophisticated component designed to enhance the capabilities of Mitsubishi's FR-A800 series variable frequency drives. This analog input/output extension unit is engineered to provide precise control and monitoring of motor operations, enabling seamless integration into complex industrial systems. It supports two analog inputs and two analog outputs, facilitating versatile interfacing with a range of external devices. The analog inputs are configurable for voltage or current signals, allowing for flexible adaptability to different industrial requirements. The analog outputs are similarly configurable, offering a range of output options to suit diverse applications.

The FR-A8AN module is designed to be easily installed, connecting directly to the inverter's main body, thereby minimizing setup time and reducing the potential for wiring errors. Its compact form factor ensures it occupies minimal space within control panels, supporting efficient use of available real estate. The unit offers high-resolution signal processing, which guarantees accurate transmission of analog signals, crucial for maintaining optimal performance in precision-demanding environments.

Additionally, the FR-A8AN supports Mitsubishi's advanced diagnostic and monitoring features, which contribute to enhanced system reliability and maintenance efficiency. This extension card is engineered to operate seamlessly within a wide range of environmental conditions, reflecting Mitsubishi's commitment to durability and long-term operational stability. Overall, the Mitsubishi FR-A8AN Inverter module is a robust and versatile solution that significantly extends the functionality of the FR-A800 series drives, making it an ideal choice for industries looking to optimize motor control operations with precision and reliability.

Mitsubishi FR-A8AN Inverter F.A.Q.

How do I perform a factory reset on the Mitsubishi FR-A8AN inverter?

To perform a factory reset, set parameter 990 to 1 and press the SET button. The inverter will reset to its default settings. Ensure all critical data is backed up before proceeding.

What is the procedure to connect the Mitsubishi FR-A8AN inverter to a PLC?

Connect the inverter's communication terminal to the PLC using a compatible communication protocol, such as Modbus. Configure the communication parameters in the inverter's settings to match those of the PLC.

How can I troubleshoot an overvoltage fault on the FR-A8AN inverter?

Check the input voltage for fluctuations or spikes. Inspect the DC bus voltage and ensure it is within the specified range. Use external braking resistors if necessary to dissipate excess energy.

What regular maintenance is required for the Mitsubishi FR-A8AN inverter?

Regular maintenance includes cleaning the inverter to prevent dust buildup, inspecting for loose connections, checking the cooling fan operation, and ensuring adequate ventilation.

How do I adjust the acceleration and deceleration times on the FR-A8AN inverter?

Adjust the acceleration time by setting parameter 7 and the deceleration time by setting parameter 8. Enter the desired time in seconds according to the application requirements.

What are the steps to update the firmware on the Mitsubishi FR-A8AN inverter?

To update the firmware, download the latest firmware version from the Mitsubishi website, connect the inverter to a computer via USB, and use the Mitsubishi software to perform the update. Follow the on-screen instructions carefully.

How can I verify the correct operation of the FR-A8AN inverter's cooling fan?

Check the fan for any physical obstructions and listen for unusual noises. Verify that the fan operates during inverter use by monitoring the temperature and ensuring the fan activates as expected.

What should I do if the FR-A8AN inverter displays an E6 error code?

An E6 error code indicates a communication error. Verify all connections and cables for damage, ensure correct communication settings, and check for signal interference.

How do I set up a PID control loop on the Mitsubishi FR-A8AN inverter?

Enable the PID control function by setting parameter 128 to 1. Adjust the PID parameters (P, I, D) to match the system response and desired control characteristics.

Can the FR-A8AN inverter be used with a single-phase motor?

No, the FR-A8AN inverter is designed for three-phase motors. Using it with a single-phase motor may cause operational issues and is not recommended.