Contents

FR-A701 INSTRUCTION MANUAL (BASIC)
This section is specifically about safety matters
CONTENTS
1 OUTLINE
- 1.1 Product checking and parts identification
- 1.2 Inverter and peripheral devices
  - 1.2.1 Peripheral devices
- 1.3 Method of removal and reinstallation of the front cover
- 1.4 Installation of the inverter and enclosure design
  - 1.4.1 Inverter installation environment
  - 1.4.2 Cooling system types for inverter enclosure
  - 1.4.3 Inverter placement
2 WIRING
- 2.1 Terminal connection diagram
- 2.2 Main circuit terminal specifications
  - 2.2.1 Specification of main circuit terminal
  - 2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor wiring
  - 2.2.3 Cables and wiring length
  - 2.2.4 When connecting the control circuit and the main circuit separately to the power supply
- 2.3 Control circuit specifications
  - 2.3.1 Control circuit terminals
  - 2.3.2 Changing the control logic
  - 2.3.3 Control circuit terminal layout
  - 2.3.4 Wiring instructions
  - 2.3.5 When connecting the operation panel using a connection cable
  - 2.3.6 RS-485 terminal block
  - 2.3.7 Communication operation
  - 2.3.8 USB connector
- 2.4 Connection of motor with encoder (vector control)
3 PRECAUTIONS FOR USE OF THE INVERTER
- 3.1 EMC and leakage currents
  - 3.1.1 Leakage currents and countermeasures
  - 3.1.2 EMC measures
  - 3.1.3 Power supply harmonics
  - 3.1.4 Harmonic suppression guideline
- 3.2 Power-off and magnetic contactor (MC)
- 3.3 Inverter-driven 400V class motor
- 3.4 Precautions for use of the inverter
- 3.5 Failsafe of the system which uses the inverter
4 DRIVING THE MOTOR
- 4.1 Step of operation
- 4.2 Operation panel (FR-DU07)
  - 4.2.1 Parts of the operation panel (FR-DU07)
  - 4.2.2 Basic operation (factory setting)
  - 4.2.3 Operation lock (Press [MODE] for an extended time (2s))
  - 4.2.4 Monitoring of output current and output voltage
  - 4.2.5 First priority monitor
  - 4.2.6 Setting dial push
  - 4.2.7 Changing the parameter setting value
  - 4.2.8 Parameter clear, all parameter clear
  - 4.2.9 Parameter copy and parameter verification
- 4.3 Before operation
  - 4.3.1 Simple mode parameter list
  - 4.3.2 Overheat protection of the motor by the inverter (Pr. 9)
  - 4.3.3 When the rated motor frequency is 50Hz (Pr. 3)
  - 4.3.4 Increase the starting torque (Pr. 0)
  - 4.3.5 Limit the maximum and minimum output frequency (Pr. 1, Pr. 2)
  - 4.3.6 Change acceleration and deceleration time (Pr. 7, Pr. 8)
  - 4.3.7 Selection of the start command and frequency command locations (Pr. 79)
  - 4.3.8 Large starting torque and low speed torque are necessary (Advanced magnetic flux vector control, Real sensorless vector control) (Pr. 71, Pr. 80, Pr. 81, Pr. 800)
  - 4.3.9 Higher accuracy operation using a motor with encoder (Vector control) (Pr.71, Pr.80, Pr.81, Pr.359, Pr.369, Pr.800)
- 4.4 Start/stop from the operation panel (PU operation mode)
  - 4.4.1 Setting the set frequency to operate (example: performing operation at 30Hz)
  - 4.4.2 Use the setting dial like a potentiometer to perform operation.
  - 4.4.3 Setting the frequency by switches (three-speed setting)
  - 4.4.4 Setting the frequency by analog input (voltage input)
  - 4.4.5 Setting the frequency by analog input (current input)
- 4.5 Start and stop using terminals (External operation)
  - 4.5.1 Setting the frequency by the operation panel (Pr. 79 = 3)
  - 4.5.2 Setting the frequency by switches (three-speed setting) (Pr. 4 to Pr. 6)
  - 4.5.3 Setting the frequency by analog input (voltage input)
  - 4.5.4 Changing the frequency (60Hz, initial value) at the maximum voltage input (5V, initial value)
  - 4.5.5 Setting the frequency by analog input (current input)
  - 4.5.6 Changing the frequency (60Hz, initial value) at the maximum current input (at 20mA, initial value)
- 4.6 Parameter List
  - 4.6.1 List of parameters classified by the purpose
  - 4.6.2 Parameter list
5 TROUBLESHOOTING
- 5.1 Reset method of protective function
- 5.2 List of fault or alarm display
- 5.3 Causes and corrective actions
- 5.4 Correspondences between digital and actual characters
- 5.6 Check first when you have a trouble
  - 5.6.1 Motor does not start
  - 5.6.2 Motor or machine is making abnormal acoustic noise
  - 5.6.3 Inverter generates abnormal noise
  - 5.6.4 Motor generates heat abnormally
  - 5.6.5 Motor rotates in the opposite direction
  - 5.6.6 Speed greatly differs from the setting
  - 5.6.7 Acceleration/deceleration is not smooth
  - 5.6.8 Motor current is too large
  - 5.6.9 Speed does not accelerate
  - 5.6.10 Motor and machine vibrate
  - 5.6.11 Speed varies during operation
  - 5.6.12 Operation mode is not changed properly
  - 5.6.13 Operation panel (FR-DU07) display is not operating
  - 5.6.14 Power lamp is not lit
  - 5.6.15 Unable to write parameter setting
6 PRECAUTIONS FOR MAINTENANCE AND INSPECTION
- 6.1 Inspection item
  - 6.1.1 Daily inspection
  - 6.1.2 Periodic inspection
  - 6.1.3 Daily and periodic inspection
  - 6.1.4 Display of the life of the inverter parts
  - 6.1.5 Checking the inverter and converter modules
  - 6.1.6 Cleaning
  - 6.1.7 Replacement of parts
- 6.2 Measurement of main circuit voltages, currents and powers
  - 6.2.1 Measurement of powers
  - 6.2.2 Measurement of voltages and use of PT
  - 6.2.3 Measurement of currents
  - 6.2.4 Use of CT and transducer
  - 6.2.5 Measurement of inverter input power factor
  - 6.2.6 Measurement of converter output voltage (across terminals P/+ and N/-)
  - 6.2.7 Measurement of inverter output frequency
  - 6.2.8 Insulation resistance test using megger
  - 6.2.9 Pressure test
7 SPECIFICATIONS
- 7.1 Rating
  - 7.1.1 Inverter rating
  - 7.1.2 Motor rating
- 7.2 Common specifications
- 7.3 Outline dimension drawings
  - 7.3.1 Inverter outline dimension drawings
  - 7.3.2 Dedicated motor outline dimension drawings
- 7.4 Installation of the heatsink portion outside the enclosure for use
  - 7.4.1 Protrusion of heatsink
APPENDICES
- Appendix 1 Main differences and compatibilities with the FR-A700 series
- Appendix 2 Instructions for compliance with the EU Directives (400V class only)
- Appendix 3 Instructions for UL and cUL Compliance
- Appendix 4 Instructions for EAC
- Appendix 5 Restricted Use of Hazardous Substances in Electronic and Electrical Products
- Appendix 6 Referenced Standard (Requirement of Chinese standardized law) (400V class only)
- Appendix 7 Control mode-based parameter (function) correspondence table and instruction code list
WARRANTY
REVISIONS
Instruction Supplement (BCN-C22005-642)
Instruction Supplement (BCN-C22005-646)
- (1) Set the brake sequence mode
- (2) With brake opening completion signal input (Pr.292 = "7 or 17")
- (3) Without brake opening completion signal input (Pr.292 = "8 or 18")
- (4) Relation between Pr.292 Automatic acceleration/deceleration and the RT, X9, or JOG signal
- (5) Protective functions
Instruction Supplement (BCN-C22005-675)
- 1 PM sensorless vector control
  - 1.1 Setting procedure of PM sensorless vector control
  - 1.2 Initializing the parameters required for the PM sensorless vector control (Pr.998)
  - 1.3 Offline auto tuning for an IPM motor (motor constant tuning)
  - 1.4 Applied motor (Pr. 71)
  - 1.5 Position control under PM sensorless vector control (Pr.800)
  - 1.6 Low-speed range torque characteristics (Pr.788)
  - 1.7 Setting the acceleration/deceleration time in the low-speed range (Pr.791, Pr.792)
  - 1.8 Braking operation selection for vector control, PM sensorless vector control (Pr.802)
  - 1.9 DC injection brake of the PM sensorless vector control
  - 1.10 PM sensorless vector control specification
  - 1.11 Motor specification
- 2 Speed detection hysteresis (Pr.870)
- 3 Extended parameter setting ranges (Pr. 263, Pr. 505, Pr. 885)
- 4 Break point setting for droop control (Pr.994, Pr.995)
- 5 Setting multiple parameters as a batch (Pr.999)
- 6 Setting to disable E.OLT during stop-on-contact control
- 7 Acceleration/deceleration time switching frequency (Pr. 147)
- 8 USB automatic recognition (Pr. 551 PU mode operation command source selection = "9999")
- 9 Modbus-RTU communication stop bit length selection (Pr. 333, Pr. 334)
- 10 Plug-in option compatibility
- 11 Regenerative operation stop signal (X75 signal)
- 12 Support for the PU operation mode of the brake sequence function
- 13 Parameter for manufacturer setting

Mitsubishi Electric FR A701 Instructions Manual

Mitsubishi Electric FR A701 manual cover

Pages 267

Year 0

Language(s)

of 267

Instructions Manual

267 pages

Instructions Manual

503 pages

Mitsubishi Electric FR A701 Specification

The Mitsubishi Electric FR-A701 is a high-performance variable frequency drive designed to provide precise motor control and energy efficiency for industrial applications. This drive features advanced vector control technology, allowing it to deliver exceptional torque and speed control, making it suitable for a wide range of applications, from simple fans and pumps to complex machinery systems. The FR-A701 supports a power range from 0.4 kW to 630 kW, accommodating various motor sizes and operational demands.

Equipped with an integrated PLC function, the FR-A701 enables users to implement custom control logic, reducing the need for additional hardware and simplifying system design. It also features a built-in EMC filter, minimizing electromagnetic interference and ensuring compliance with EMC standards. The drive's user-friendly interface includes an easy-to-read LCD screen and a keypad, facilitating straightforward setup and operation.

The FR-A701 offers comprehensive communication options, supporting multiple protocols such as Modbus, CC-Link, and Profibus, enabling seamless integration into existing automation systems. Its robust design ensures reliable performance in demanding environments, featuring a high resistance to dust and moisture. Enhanced safety features include overcurrent, overvoltage, and thermal protection, safeguarding both the drive and connected equipment.

Energy-saving functions, such as automatic energy optimization and a sleep mode, contribute to reduced operational costs and environmental impact. The FR-A701's compact design allows for easy installation in limited spaces, while its modular structure supports flexible configuration and maintenance. Overall, the Mitsubishi Electric FR-A701 is a versatile and efficient solution for modern industrial motor control needs.

Mitsubishi Electric FR A701 F.A.Q.

How do I perform a factory reset on the Mitsubishi Electric FR A701?

To perform a factory reset on the FR A701, set parameter 79 to 1. This will reset all parameters to their default values. Ensure to back up any custom settings before proceeding.

What is the procedure for troubleshooting an overcurrent fault on the FR A701?

First, check for any short circuits or ground faults in the motor and wiring. Verify that the motor is not overloaded and that the acceleration time is set appropriately. Adjust the current limit setting if necessary.

How can I optimize the energy efficiency of the FR A701 drive?

To optimize energy efficiency, utilize the built-in energy-saving features such as automatic energy-saving operation and optimize the V/F pattern according to the load characteristics. Regular maintenance and parameter tuning can also contribute to efficiency.

What maintenance checks should be regularly performed on the FR A701?

Regular maintenance should include checking for loose connections, inspecting the cooling fan, cleaning the unit to prevent dust accumulation, and verifying parameter settings. Additionally, inspect the motor and associated mechanical components for wear and tear.

How can I change the acceleration and deceleration times on the FR A701?

To change acceleration and deceleration times, adjust parameters 7 (acceleration time) and 8 (deceleration time) in the drive settings. Ensure the new settings are suitable for your application to avoid mechanical stress.

What should I do if the FR A701 display shows an E.OFF error?

An E.OFF error indicates that the emergency stop circuit has been activated. Check the external emergency stop button or circuit for faults and verify that the wiring is correct and intact.

Can the FR A701 be used with a single-phase power supply?

The FR A701 series is designed for three-phase power supply only. For single-phase applications, a suitable inverter model or an alternative solution should be considered.

How do I connect the FR A701 to a PLC for control purposes?

To connect the FR A701 to a PLC, use the built-in RS-485 communication port. Configure the communication parameters such as baud rate, parity, and stop bits to match those of the PLC.

What is the maximum allowable ambient temperature for operating the FR A701?

The maximum allowable ambient temperature for the FR A701 is 50°C (122°F). Ensure proper ventilation and cooling to maintain the temperature within the specified range.

How can I reduce the noise generated by the FR A701 during operation?

Noise can be reduced by properly grounding the drive, using shielded cables, and installing line reactors or noise filters. Additionally, ensure that the drive is mounted securely to minimize vibration.