Contents

FR-A8NL INSTRUCTION MANUAL
Safety instructions
CONTENTS
1 PRE-OPERATION INSTRUCTIONS
- 1.1 Unpacking and product confirmation
  - 1.1.1 Product confirmation
  - 1.1.2 SERIAL number check
- 1.2 Component names
- 1.3 Operation status indication LED
- 1.4 Specifications
  - 1.4.1 Inverter option specifications
  - 1.4.2 Communication specifications
2 INSTALLATION
- 2.1 Pre-installation instructions
- 2.2 Installation procedure
3 WIRING
- 3.1 System configuration example
- 3.2 Wiring
4 INVERTER SETTING
- 4.1 Parameter list
- 4.2 Operation mode setting
  - 4.2.1 Operation mode switching and communication startup mode (Pr.79, Pr.340)
- 4.3 Operation at communication error occurrence
  - 4.3.1 Operation selection at communication error occurrence (Pr.500 to Pr.502, Pr.779)
  - 4.3.2 Fault and measures
- 4.4 Inverter reset
- 4.5 Frequency and speed settings
5 FUNCTION OVERVIEW
- 5.1 XIF file
- 5.2 Output from the inverter to the network
- 5.3 Input from the network to the inverter
6 NETWORK VARIABLES
- 6.1 Object map
- 6.2 Network variable list
- 6.3 LONWORKS object
  - 6.3.1 Setting range of object ID
  - 6.3.2 Object request (network input SNVT_obj_request nviRequest)
  - 6.3.3 Object status (network output SNVT_obj_status nvoStatus)
- 6.4 Variable speed motor drive object
  - 6.4.1 Start/stop and simple speed setting (network input SNVT_switch nviDrvSpeedStpt)
  - 6.4.2 Speed adjustment (0.005% increments) (network input SNVT_lev_percent nviDrvSpeedScale)
  - 6.4.3 Speed monitor (0.005% increments) (network output SNVT_lev_percent nvoDrvSpeed)
- 6.5 Inverter basic functions
  - 6.5.1 Inverter input signal (network input SNVT_state nviInvInputSig)
  - 6.5.2 Inverter output signal (network output SNVT_state nvoInvOutputSig)
  - 6.5.3 Set frequency write destination selection (network input SNVT_switch nviInvSetFreqSw)
  - 6.5.4 Set frequency (0.1 Hz increments) (network input SNVT_freq_hz nviInvSetFreq)
  - 6.5.5 Set frequency (0.005% increments) (network input SNVT_lev_percent nviInvSetFreqP)
  - 6.5.6 Output frequency monitor (0.1 Hz increments) (network output SNVT_freq_hz nvoInvOutFreq)
  - 6.5.7 Output frequency monitor (0.005% increments) (network output SNVT_lev_percent nvoInvOutFreqP)
  - 6.5.8 Output current monitor (0.1 A increments) (network output SNVT_amp nvoDrvCurnt)
  - 6.5.9 Output voltage monitor (0.1 V increments) (network output SNVT_volt nvoDrvVolt)
  - 6.5.10 Actual operation time monitor (1 h increments) (network output SNVT_time_hour nvoDrvRunHours)
  - 6.5.11 Cumulative power monitor (1 kWh increments) (network output SNVT_elec_kwh nvoDrvRunPower)
  - 6.5.12 Cumulative power monitor 2 (0.1 kWh increments) (network output SNVT_elec_kwh_l nvoDrvRunPower_l)
  - 6.5.13 Fault reset (network input SNVT_switch nviInvAlarmReset)
  - 6.5.14 Fault occurrence definition (network output SNVT_str_asc nvoInvAlarmStr)
  - 6.5.15 Product information (maker name, type) (network output SNVT_str_asc nvoInvTypeInfo)
  - 6.5.16 Emergency stop command (network input SNVT_hvac_emerg nviEmergOverride)
  - 6.5.17 Emergency stop status (network output SNVT_hvac_emerg nvoEmergStatus)
  - 6.5.18 Fault status (network output SNVT_switch nvoDrvAlarm)
- 6.6 Inverter PID control functions
  - 6.6.1 PID set point (network input SNVT_lev_percent nviInvPIDTarget)
  - 6.6.2 PID measured value (network input SNVT_lev_percent nviInvPIDValue)
  - 6.6.3 PID deviation (network input SNVT_lev_percent nviInvPIDDev)
- 6.7 Inverter extended functions
  - 6.7.1 Monitor code (network input SNVT_count nviInvMonCode)
  - 6.7.2 Monitor data (network output SNVT_count nvoInvMonData)
  - 6.7.3 Set frequency (0.01 Hz increments) (network input SNVT_count nviInvSetFreq2)
  - 6.7.4 Output frequency monitor (0.01 Hz increments) (network output SNVT_count nvoInvOutFreq2)
  - 6.7.5 Command request (network input SNVT_str_asc nviInvCmdReq)
  - 6.7.6 Command request (binary) (network input SNVT_preset nviInvCmdBinReq)
  - 6.7.7 Command reply (network output SNVT_str_asc nvoInvCmdReply)
  - 6.7.8 Command reply (binary) (network output SNVT_preset nvoInvCmdBinRply)
- 6.8 Configuration properties
  - 6.8.1 Initial communication delay time (network input config SNVT_time_sec nciPwUpOutTm)
  - 6.8.2 Forward/reverse rotation prevention (network input config SNVT_count nciInvFwdRevLock)
  - 6.8.3 % set reference frequency (network input config SNVT_freq_hz nciInvSetFreqBas)
  - 6.8.4 Maximum frequency (0.1 Hz increments) (network input config SNVT_freq_hz nciInvMaxFreq)
  - 6.8.5 Minimum frequency (0.1 Hz increments) (network input config SNVT_freq_hz nciInvMinFreq)
  - 6.8.6 Heartbeat send time interval (network input config SNVT_time_sec nciSndHrtBt)
  - 6.8.7 Minimum heartbeat send time (network input config SNVT_time_sec nciMinOutTm)
  - 6.8.8 Acceleration time (network input config SNVT_time_sec nciRampUpTm)
  - 6.8.9 Deceleration time (network input config SNVT_time_sec nciRampDownTm)
  - 6.8.10 PID action selection (network input config SNVT_count nciInvPIDSwitch)
  - 6.8.11 PID proportional band (network input config SNVT_count nciInvPIDPro)
  - 6.8.12 PID integral time (network input config SNVT_time_sec nciInvPIDIntTm)
  - 6.8.13 PID differential time (network input config SNVT_time_sec nciInvPIDDiffTm)
  - 6.8.14 PID manipulated variable bias (0.1 Hz increments) (network input config SNVT_freq_hz nciInvPIDOpeBias)
  - 6.8.15 PID manipulated variable gain (0.1 Hz increments) (network input config SNVT_freq_hz nciInvPIDOpeGain)
  - 6.8.16 Heartbeat receive time interval (network input config SNVT_time_sec nciRcvHrtBt)
  - 6.8.17 Maximum speed (0.005% increments) (network input config SNVT_lev_percent nciMaxSpeed)
  - 6.8.18 Minimum speed (0.005% increments) (network input config SNVT_lev_percent nciMinSpeed)
  - 6.8.19 Reference speed setting (network input config SNVT_rpm nciNmlSpeed)
  - 6.8.20 Reference frequency setting (network input config SNVT_freq_hz nciNmlFreq)
  - 6.8.21 Speed adjustment default value (network input config SNVT_lev_percent nciDrvSpeedScale)
  - 6.8.22 Event driven detection width (network input config SNVT_lev_percent nciInvEvtDuty)
7 TROUBLESHOOTING
APPENDIX
- Appendix 1 Setup example
- Appendix 2 Example of inverter parameter clear
- Appendix 3 Restricted Use of Hazardous Substances in Electronic and Electrical Products
REVISIONS

Mitsubishi FR-A8NL Instruction Manual

Mitsubishi FR-A8NL Inverter manual cover

Pages 110

Year 2016

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of 110

Mitsubishi FR-A8NL Inverter Specification

The Mitsubishi FR-A8NL Inverter is a high-performance device designed for precision motor control and energy efficiency in industrial applications. This inverter integrates advanced features to enhance operational efficiency and reliability. It supports a wide range of motor types, including induction and permanent magnet motors, making it versatile for various industrial needs.

The FR-A8NL series is built with cutting-edge vector control technology, providing smooth and precise motor operation even at low speeds. It offers a robust overload capacity, ensuring the inverter can handle demanding applications with ease. With a power range that accommodates both small and large motors, it is suitable for diverse industrial environments.

The inverter features an intuitive interface with a built-in LCD display, allowing for easy monitoring and configuration. It supports multiple communication protocols, including Modbus RTU and Ethernet, enabling seamless integration into existing industrial networks. The FR-A8NL is also equipped with an intelligent predictive maintenance function, which monitors key parameters and alerts users of potential issues before they lead to downtime.

Safety is a priority in the design of the FR-A8NL, incorporating features such as built-in EMC filters, short-circuit protection, and thermal overload protection to ensure safe and reliable operation. The inverter is designed for easy installation and maintenance, with a compact design that facilitates space-saving in control panels.

Overall, the Mitsubishi FR-A8NL Inverter offers a blend of reliability, performance, and flexibility, making it an ideal choice for industries looking to optimize motor control and energy consumption. Its advanced features and robust design make it a valuable asset for enhancing productivity and reducing operational costs.

Mitsubishi FR-A8NL Inverter F.A.Q.

How do I properly install the Mitsubishi FR-A8NL Inverter?

Ensure the inverter is mounted on a vibration-free vertical surface with adequate ventilation. Follow the installation manual to connect input and output terminals, and ensure that all wiring complies with local electrical standards.

What should I do if the inverter does not start?

Check for any error codes displayed on the inverter's screen. Verify the power supply connection, ensure the emergency stop is not activated, and inspect the wiring for any loose connections.

How can I reset the inverter to factory settings?

Access the inverter's parameter settings through the keypad. Navigate to the reset option and follow the on-screen instructions to restore factory defaults.

What maintenance is required for the Mitsubishi FR-A8NL Inverter?

Regularly inspect the inverter for dust buildup, ensure the cooling fan is operational, and check for any abnormal vibrations or sounds. Periodically tighten electrical connections and update firmware as needed.

How do I troubleshoot an overvoltage fault on the inverter?

Inspect the power supply voltage for consistency and ensure the braking resistor, if used, is correctly installed and functional. Adjust deceleration time settings if overvoltage occurs during stopping.

Can the inverter be used for regenerative energy applications?

Yes, the Mitsubishi FR-A8NL Inverter supports regenerative energy applications, but it requires the installation of a compatible regenerative unit. Refer to the application guide for setup details.

How do I connect a PLC to the Mitsubishi FR-A8NL Inverter?

Use the RS-485 or Modbus communication option available on the inverter. Configure the communication parameters such as baud rate and station number to match the PLC settings.

What is the recommended environment for operating the inverter?

The inverter should be operated in a clean, dry area with ambient temperatures between -10°C and 50°C. Avoid exposure to corrosive gases, excessive moisture, and direct sunlight.

How can I reduce the noise generated by the inverter during operation?

Ensure the inverter is properly grounded and consider using an output reactor to limit electromagnetic interference. Check for mechanical issues in connected motors and adjust PWM carrier frequency settings if necessary.

What steps should I take if the inverter displays an 'Overload' error?

Verify the motor load to ensure it does not exceed the inverter's rated capacity. Inspect for any mechanical binding in the motor or driven equipment and adjust the acceleration time to reduce initial load impact.