Contents

This section is specifically about safety matters
SAFETY INSTRUCTIONS
CONTENTS
1. INTRODUCTION
- 1.1 General
- 1.2 Structure
2. INSTALLATION
- 2.1 Pre-Installation Checks
- 2.2 Node address setting
- 2.3 Communication cable
3. OPERATION
- 3.1 Operating Modes
- 3.2 Selecting the Operating Mode
- 3.3 Functions Available in the Operating Modes
4. ACCESSING DRIVE DATA
5. PARAMETER DEFINITIONS
- 5.1 Input to Inverter From Modbus Plus Network (Control Input Command)
- 5.2 Output From Inverter to Modbus Plus Network (Inverter Status)
- 5.3 System Environment Variable (SEV) Interface
- 5.4 Using the Modsoft MSTR Block
- 5.5 Real-Time Monitor
- 5.6 Input/Output Terminal Assignment
- 5.7 Operation When an Alarm Occurs
- 5.8 Alarm History
- 5.9 Alarm Numbers vs. Alarm Definitions
- 5.10 A500(L) PARAMETERS
  - 5.10.1 Normal Parameter Area
- 5.11 900f Parameter Area
- 5.12 900% Parameter Area
- 5.13 Programmed Operation : Setting Time
- 5.14 Programmed Operation : Setting Rotation Direction
- 5.15 Programmed Operation : Frequency Setting
6. SPECIFICATIONS
Appendix A. Other Option-Specific parameters
REVISIONS

Mitsubishi Electric FR A5NM Instructions Manual

Mitsubishi Electric FR A5NM manual cover

Pages 38

Year 2003

Language(s)

of 38

Mitsubishi Electric FR A5NM Specification

The Mitsubishi Electric FR-A5NM is a sophisticated network card designed to enhance the capabilities of Mitsubishi's range of variable frequency drives (VFDs). This network module supports seamless integration into various industrial communication networks, providing enhanced control and monitoring capabilities for automation systems. The FR-A5NM is engineered to facilitate efficient data exchange between the VFD and other devices within a manufacturing or processing environment, ensuring optimal performance and reliability.

This module is compatible with multiple communication protocols, ensuring flexibility and adaptability in diverse industrial settings. It supports high-speed data transmissions, which are crucial for real-time monitoring and adjustments, thus improving the overall efficiency of the automation system. The FR-A5NM is equipped with advanced diagnostic features that allow for the quick identification and resolution of network issues, minimizing downtime and maintenance requirements.

In terms of physical specifications, the FR-A5NM is compact, ensuring easy installation within existing setups without the need for extensive modifications. It is designed to withstand harsh industrial environments, featuring robust construction that ensures longevity and durability. Additionally, the module offers energy-efficient operation, contributing to reduced operational costs over time.

Overall, the Mitsubishi Electric FR-A5NM network card represents a critical component for enhancing the functionality and connectivity of VFDs within industrial automation systems. Its advanced features and versatile compatibility make it an ideal choice for facilities aiming to optimize their production processes and improve system integration.

Mitsubishi Electric FR A5NM F.A.Q.

How can I reset the Mitsubishi Electric FR A5NM inverter to its factory settings?

To reset the FR A5NM inverter to factory settings, access the parameter settings menu. Navigate to parameter 'Pr. 79' and set it to '1'. This will initiate a factory reset. Ensure the inverter is stopped before performing a reset.

What is the recommended maintenance schedule for the FR A5NM inverter?

It is recommended to perform regular maintenance every 6-12 months. This includes checking cooling fan operation, cleaning dust from heat sinks, inspecting terminal connections, and verifying parameter settings.

How do I troubleshoot an overcurrent fault on the FR A5NM inverter?

To troubleshoot an overcurrent fault, first check the motor and cable connections for any short circuits or grounding issues. Ensure that the motor is not overloaded and that the acceleration/deceleration times are set correctly. Adjust settings if necessary.

Can the FR A5NM inverter be used with a single-phase input?

The FR A5NM inverter is typically designed for three-phase input. However, consult the inverter's manual or contact Mitsubishi Electric support to determine if single-phase operation is possible for your specific model.

What are the steps to program a new parameter in the FR A5NM inverter?

To program a new parameter, press the 'PU' button to enter the parameter setting mode. Use the arrow keys to select the desired parameter number, press 'SET', enter the new value, and press 'SET' again to save.

How do I perform a firmware update on the FR A5NM inverter?

To perform a firmware update, download the latest firmware from the Mitsubishi Electric website. Connect the inverter to a PC using the appropriate communication interface and use the software tool provided by Mitsubishi to upload the firmware.

What should I do if the inverter display shows a 'CPU Error'?

If a 'CPU Error' occurs, first try restarting the inverter. If the error persists, check for loose connections or damaged cables. Consult the inverter manual for specific troubleshooting steps or contact Mitsubishi Electric support for assistance.

How can I improve the energy efficiency of the FR A5NM inverter?

To improve energy efficiency, ensure the inverter is properly sized for the motor load. Utilize energy-saving functions such as automatic energy-saving mode and optimize the V/f pattern settings for your application. Regular maintenance also contributes to efficiency.

Is it possible to connect the FR A5NM inverter to a PLC?

Yes, the FR A5NM inverter can be connected to a PLC. Use the built-in communication options such as Modbus RTU or opt for additional communication modules if necessary to integrate with a PLC system.

What safety precautions should I take when servicing the FR A5NM inverter?

When servicing the inverter, ensure that the power supply is disconnected and that the inverter has fully discharged. Use insulated tools, wear personal protective equipment, and follow all safety instructions provided in the inverter manual.