Contents

FR-A8AC 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
  - 1.3.1 Input signal (X1 to X8)
  - 1.3.2 Output signal (1A, 1B, 1C, 2A, 2B, 2C)
2 INSTALLATION
- 2.1 Pre-installation instructions
- 2.2 Installation procedure
- 2.3 Wiring
3 CONTACT INPUT
- 3.1 Internal block diagram
- 3.2 Terminals
4 RELAY OUTPUT
- 4.1 Internal block diagram
- 4.2 Terminals
- 4.3 Parameter list
- 4.4 Output signal setting
REVISIONS

Mitsubishi FR-A8AC Instruction Manual

Mitsubishi FR-A8AC Inverter manual cover

Pages 20

Year 2014

Language(s)

of 20

Mitsubishi FR-A8AC Inverter Specification

The Mitsubishi FR-A8AC Inverter is a sophisticated component of the FR-A800 series, designed to provide advanced motor control for industrial applications. It is engineered to deliver high performance, energy efficiency, and precise control, suitable for a wide range of applications including pumps, fans, and conveyors. This inverter features a compact design, facilitating easy integration into existing systems and reducing space requirements. The FR-A8AC inverter supports a wide voltage range and offers a variety of power ratings, ensuring compatibility with different motor types and sizes.

It incorporates advanced motor control algorithms, including vector control and real-time auto-tuning, to ensure optimal performance and efficiency. The inverter is equipped with user-friendly interfaces, including an intuitive keypad and a variety of communication options such as RS485 and optional Ethernet connectivity, which allows for seamless integration into industrial networks and enhances remote monitoring capabilities. Safety features are robust, with built-in functions like overcurrent, overvoltage, and thermal protection, ensuring reliable operation in demanding environments.

The inverter is designed with energy-saving features, including regenerative braking and automatic energy optimization, which contribute to reduced operational costs. Additionally, it supports a wide range of environmental conditions, with a temperature tolerance that allows it to operate efficiently in diverse industrial settings. The Mitsubishi FR-A8AC also includes a comprehensive set of diagnostic and monitoring tools, enabling predictive maintenance and minimizing downtime. Overall, the Mitsubishi FR-A8AC Inverter is a versatile, reliable, and efficient solution for advanced motor control in industrial applications, offering robust functionality and enhancing system performance across various operational contexts.

Mitsubishi FR-A8AC Inverter F.A.Q.

How do I perform a factory reset on the Mitsubishi FR-A8AC Inverter?

To perform a factory reset, navigate to the inverter's parameter menu, select parameter 77, and set it to 1. This will reset all parameters to factory settings. Ensure the inverter is stopped before proceeding with the reset.

What are the common fault codes for the Mitsubishi FR-A8AC Inverter and their solutions?

Common fault codes include E.OC1 (overcurrent during acceleration), which can be resolved by checking motor connections and settings, and E.OV (overvoltage), which can be addressed by ensuring proper power supply and braking resistor usage.

How can I adjust the motor speed using the Mitsubishi FR-A8AC Inverter?

Motor speed can be adjusted by changing the frequency setting on the inverter. Enter the frequency setting mode and use the keypad to set the desired frequency, then confirm the setting.

What maintenance procedures are recommended for the Mitsubishi FR-A8AC Inverter?

Regular maintenance includes cleaning the inverter with dry air, checking for loose connections, inspecting the cooling fan for dust, and verifying parameter settings. Perform these checks annually or as needed based on operating conditions.

How do I connect the Mitsubishi FR-A8AC Inverter to a PLC system?

To connect to a PLC, use the inverter's communication ports. Configure the communication parameters, such as baud rate and protocol, to match the PLC settings. Consult the inverter and PLC manuals for specific wiring diagrams and configuration steps.

What is the process for updating the firmware on the Mitsubishi FR-A8AC Inverter?

To update the firmware, download the latest firmware version from Mitsubishi's website, connect the inverter to a computer via USB or serial connection, and use the provided software tool to upload the new firmware. Follow the on-screen instructions carefully.

How do I troubleshoot a communication error on the Mitsubishi FR-A8AC Inverter?

Check all communication cable connections and ensure they are secure. Verify that the communication settings match between devices. If errors persist, inspect the cable for damage or try using a different cable.

What steps should be taken if the Mitsubishi FR-A8AC Inverter does not start?

First, check the power supply and ensure the inverter is receiving the correct voltage. Verify all input and output connections. Check for any active fault codes and resolve them accordingly. Ensure the run command is properly configured.

How can I reduce the noise emitted by the Mitsubishi FR-A8AC Inverter?

To reduce noise, ensure the inverter is properly grounded and shield cables are used for input and output connections. Consider installing an EMC filter if noise issues persist. Properly secure the inverter to minimize vibration-induced noise.

Can the Mitsubishi FR-A8AC Inverter be used with different types of motors?

Yes, the inverter can control various types of motors, including induction and synchronous motors. Ensure that the motor parameters in the inverter are set according to the motor's specifications for optimal performance.