Contents

FR-A7ND INSTRUCTION MANUAL
This section is specifically about safety matters
SAFETY INSTRUCTIONS
CONTENTS
1 PRE-OPERATION INSTRUCTIONS
- 1.1 Inverter Type
- 1.2 Unpacking and Product Confirmation
  - 1.2.1 Product confirmation
  - 1.2.2 Parts
- 1.3 MNS LED (operation status indication)
- 1.4 Specifications
2 INSTALLATION
- 2.1 Pre-Installation Instructions
- 2.2 Installation of the Communication Option LED Display Cover
- 2.3 Installation Procedure
- 2.4 Node Address Setting
3 WIRING
- 3.1 Connection to Network
- 3.2 Wiring
4 INVERTER SETTING
- 4.1 Parameter List
- 4.2 DeviceNet Data
  - 4.2.1 DeviceNet address (Pr. 345)
  - 4.2.2 DeviceNet baud rate (Pr. 346)
- 4.3 Operation Mode Setting
  - 4.3.1 Operation mode indication
  - 4.3.2 Operation mode switching and communication startup mode (Pr. 79, Pr. 340)
- 4.4 Operation and Speed Command Source (Pr. 338, Pr. 339, Pr. 550)
  - 4.4.1 Communication EEPROM write selection (Pr. 342)
- 4.5 Operation at Communication Error Occurrence
  - 4.5.1 Operation selection at communication error occurrence (Pr. 500 to Pr. 502, Pr. 779)
  - 4.5.2 Fault and measures
- 4.6 Inverter Reset
- 4.7 Frequency and Speed Settings
5 FUNCTIONS
- 5.1 Output from the Inverter to the Network
- 5.2 Input to the Inverter from the Network
6 OBJECT MAP DEFINITIONS
- 6.1 Obejct Model of DeviceNet
- 6.2 Response Level
  - 6.2.1 Response level of polling I/O
  - 6.2.2 Response level of explicit message
- 6.3 Recommendation for Software Developers
7 OBJECT MAP
- 7.1 Class 0x01 (Identity-Object)
  - 7.1.1 Class 0x01 Instance 0
  - 7.1.2 Class 0x01 Instance 1
- 7.2 Class 0x03 (DeviceNet Object)
  - 7.2.1 Class 0x03 Instance 1
- 7.3 Class 0x04 (Assembly Object)
  - 7.3.1 Class 0x04 Output Instance 20, 21, 126
  - 7.3.2 Class 0x04 Input Instance 70, 71, 176
- 7.4 Class 0x05 (DeviceNet Connection Object)
  - 7.4.1 Class 0x05 Instance 1 Attribute (Explicit messaging connection)
  - 7.4.2 Class 0x05 Instance 2 Attribute (Polled I/O connection)
  - 7.4.3 Class 0x05 Instance 4, 5, 6 Attribute (Explicit messaging connection)
  - 7.4.4 Class 0x05 Instance 1, 2, 4, 5, 6 service
- 7.5 Class 0x28 (Motor Data Object)
  - 7.5.1 Class 0x28 Instance 1
- 7.6 Class 0x29 (Control Supervisor Object)
  - 7.6.1 Class 0x29 Instance 1
- 7.7 Class 0x2A (AC Drive Object)
  - 7.7.1 Class 0x2A Instance 1
- 7.8 Class 0x66 (Extended Object I)
  - 7.8.1 Class 0x66 Instance 1
- 7.9 Class 0x67 (Extended Object II)
  - 7.9.1 Class 0x67 Instance 1
- 7.10 Class 0x70 to 0x79 (Extended Object III)
  - 7.10.1 Class 0x70 to 0x79 Instance 1, 2
- 7.11 Class 0x80 (Extended Object IV)
  - 7.11.1 Class 0x80 Instance 1
- 7.12 FR-A5ND Compatible Mode
8 TROUBLESHOOTING
APPENDIX
REVISIONS

Mitsubishi Electric FR A7ND Instructions Manual

Mitsubishi Electric FR A7ND manual cover

Pages 102

Year 2012

Language(s)

of 102

Mitsubishi Electric FR A7ND Specification

The Mitsubishi Electric FR-A7ND is a high-performance network communication option designed to enhance the capabilities of the Mitsubishi FR-A700 series inverters. This device is engineered to facilitate seamless integration into various industrial network environments, thereby improving operational efficiency and control. The FR-A7ND module supports a wide array of network protocols, which makes it highly versatile for diverse industrial applications. It enables real-time data exchange, which is critical for maintaining optimal production line performance and ensuring precise control of motor functions.

The design of the FR-A7ND emphasizes ease of installation and connectivity. It features a compact structure that allows it to be easily mounted onto the inverter, minimizing setup time and reducing system complexity. The module is equipped with advanced diagnostic and monitoring functions, providing users with critical insights into system performance and facilitating proactive maintenance strategies. It supports high-speed communication, which is essential for time-sensitive operations and ensures that data is transferred with minimal latency.

Furthermore, the FR-A7ND is engineered to be robust and reliable, capable of operating in demanding industrial environments. It supports a wide temperature range and is built to withstand electrical interference, ensuring consistent performance over time. The compatibility of the FR-A7ND with Mitsubishi's integrated automation solutions enhances its utility, enabling users to create scalable and flexible control systems. The module is an ideal choice for industries seeking to optimize their automation processes through reliable and efficient network communication capabilities.

Mitsubishi Electric FR A7ND F.A.Q.

How do I perform a factory reset on the Mitsubishi Electric FR A7ND?

To perform a factory reset on the FR A7ND, press the 'PU' button to enter the parameter unit mode. Navigate to the parameter 79 and set it to '1' to initiate a full reset. Ensure that the inverter is stopped before performing this operation.

What is the procedure to troubleshoot a communication error on the FR A7ND?

Check the communication cable for any physical damage or loose connections. Verify that the communication settings in the inverter match those of the connected device. Refer to the error code displayed and consult the manual for specific guidance.

How can I extend the lifespan of my Mitsubishi Electric FR A7ND inverter?

Regular maintenance such as cleaning the cooling fans and ensuring proper ventilation will help extend the inverter's lifespan. Periodically check all electrical connections and ensure the environment is within the specified temperature and humidity range.

What are the steps to configure the FR A7ND for a new motor?

First, ensure that the inverter is powered off. Connect the new motor and power the inverter on. Access the parameter settings and adjust parameters such as motor capacity and rated current to match the new motor specifications.

How do I update the firmware on a Mitsubishi Electric FR A7ND?

Obtain the latest firmware version from the Mitsubishi Electric website. Connect your inverter to a PC using the appropriate interface. Use the firmware update tool provided with the firmware package to upload the new version to the inverter.

Why does the FR A7ND display an overcurrent fault?

An overcurrent fault can be caused by a sudden increase in load, a short circuit in the motor, or incorrect parameter settings. Check the motor and connections for any faults, and ensure that the parameters are correctly set for the application.

Can the Mitsubishi Electric FR A7ND be used in outdoor environments?

The FR A7ND is designed for indoor use in environments that are free from dust, corrosive gases, and high humidity. If used outdoors, it must be housed in a suitable enclosure that meets the required protective standards.

How do I perform regular maintenance on the FR A7ND inverter?

Regular maintenance includes cleaning the unit with dry air, checking for loose connections, inspecting for signs of wear or damage, and verifying the operation of cooling fans. Maintenance should be carried out by qualified personnel.

How can I reduce the noise emitted by the FR A7ND inverter?

Ensure that the inverter is properly mounted and that all screws are tightened. Use noise filters and ensure that the inverter is set to an appropriate carrier frequency. If necessary, install acoustic dampening materials around the unit.

What should I do if the FR A7ND inverter does not start?

First, check the power supply and ensure that all connections are secure. Verify that there are no active fault codes or alarms. Confirm that the start/stop command is correctly configured and that the control circuit is operational.