Contents

FR-A701 INSTRUCTION MANUAL (Applied)
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
- 2.4 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 PARAMETERS
- 4.1 Operation panel (FR-DU07)
  - 4.1.1 Parts of the operation panel (FR-DU07)
  - 4.1.2 Basic operation (factory setting)
  - 4.1.3 Changing the parameter setting value
  - 4.1.4 Setting dial push
- 4.2 Parameter list
  - 4.2.1 Parameter list
- Parameters according to purposes
- 4.3 Control mode
  - 4.3.1 What is vector control?
  - 4.3.2 Change the control method (Pr. 80, Pr. 81, Pr. 451, Pr. 800)
- 4.4 Speed control by Real sensorless vector control, vector control
  - 4.4.1 Setting procedure of Real sensorless vector control (speed control)
  - 4.4.2 Setting procedure of vector control (speed control)
  - 4.4.3 Torque limit level setting for speed control (Pr. 22, Pr. 803, Pr. 810 to Pr. 817, Pr. 858, Pr. 868, Pr. 874)
  - 4.4.4 To perform high accuracy/fast response operation (gain adjustment of Real sensorless vector control and vector control) (Pr. 818 to Pr. 821, Pr. 830, Pr. 831, Pr. 880)
  - 4.4.5 Speed feed forward control, model adaptive speed control (Pr. 828, Pr. 877 to Pr. 881)
  - 4.4.6 Torque biases (Pr. 840 to Pr. 848)
  - 4.4.7 Prevent the motor from overrunning (Pr. 285, Pr. 853, Pr. 873)
  - 4.4.8 Notch filter (Pr. 862, Pr. 863)
- 4.5 Torque control by Real sensorless vector control, vector control
  - 4.5.1 Torque control
  - 4.5.2 Setting procedure of Real sensorless vector control (torque control)
  - 4.5.3 Setting procedure of vector control (torque control)
  - 4.5.4 Torque command (Pr. 803 to Pr. 806)
  - 4.5.5 Speed limit (Pr. 807 to Pr. 809)
  - 4.5.6 Gain adjustment of torque control (Pr. 824, Pr. 825, Pr. 834, Pr. 835)
- 4.6 Position control by vector control
  - 4.6.1 Position control
  - 4.6.2 Conditional position feed function by contact input (Pr. 419, Pr. 464 to Pr. 494)
  - 4.6.3 Position control (Pr. 419, Pr. 428 to Pr. 430) by inverter pulse train input
  - 4.6.4 Setting of the electronic gear (Pr. 420, Pr. 421, Pr. 424)
  - 4.6.5 Setting of positioning adjustment parameter (Pr. 426, Pr. 427)
  - 4.6.6 Gain adjustment of position control (Pr. 422, Pr. 423, Pr. 425)
  - 4.6.7 Trouble shooting for when position control is not exercised normally
- 4.7 Adjustment of Real sensorless vector control, vector control
  - 4.7.1 Speed detection filter and torque detection filter (Pr. 823, Pr. 827, Pr. 833, Pr. 837)
  - 4.7.2 Excitation ratio (Pr. 854)
- 4.8 Adjust the output torque (current) of the motor
  - 4.8.1 Manual torque boost (Pr. 0, Pr. 46, Pr. 112)
  - 4.8.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 450, Pr. 451, Pr. 453, Pr. 454, Pr. 569, Pr. 800)
  - 4.8.3 Slip compensation (Pr. 245 to Pr. 247)
  - 4.8.4 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 49, Pr. 66, Pr. 114, Pr. 115, Pr. 148, Pr. 149, Pr. 154, Pr. 156, Pr. 157, Pr. 858, Pr. 868)
- 4.9 Limiting the output frequency
  - 4.9.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18)
  - 4.9.2 Avoiding mechanical resonance points (Frequency jump) (Pr. 31 to Pr. 36)
- 4.10 V/F pattern
  - 4.10.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47, Pr. 113)
  - 4.10.2 Load pattern selection (Pr. 14)
  - 4.10.3 Elevator mode (automatic acceleration/deceleration) (Pr. 61, Pr. 64, Pr. 292)
  - 4.10.4 Adjustable 5 points V/F (Pr. 71, Pr. 100 to Pr. 109)
- 4.11 Frequency setting by external terminals
  - 4.11.1 Multi-speed setting operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)
  - 4.11.2 Jog operation (Pr. 15, Pr. 16)
  - 4.11.3 Input compensation of multi-speed and remote setting (Pr. 28)
  - 4.11.4 Remote setting function (Pr. 59)
- 4.12 Setting of acceleration/deceleration time and acceleration/deceleration pattern
  - 4.12.1 Setting of the acceleration and deceleration time (Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Pr. 45, Pr. 110, Pr. 111)
  - 4.12.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571)
  - 4.12.3 Acceleration/deceleration pattern (Pr. 29, Pr. 140 to Pr. 143, Pr. 380 to Pr. 383, Pr. 516 to Pr. 519)
  - 4.12.4 Shortest acceleration/deceleration and optimum acceleration/deceleration (automatic acceleration/deceleration) (Pr. 61 to Pr. 63, Pr. 292, Pr. 293)
- 4.13 Selection and protection of a motor
  - 4.13.1 Motor protection from overheat (Electronic thermal relay function) (Pr. 9, Pr. 51)
  - 4.13.2 Applied motor (Pr. 71, Pr. 450)
  - 4.13.3 Offline auto tuning (Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 450, Pr. 453 to Pr. 463, Pr. 684, Pr. 859, Pr. 860)
  - 4.13.4 Online auto tuning (Pr. 95, Pr. 574)
- 4.14 Motor brake and stop operation
  - 4.14.1 DC injection brake and zero speed control, servo lock (LX signal, X13 signal, Pr. 10 to Pr. 12, Pr. 802, Pr. 850)
  - 4.14.2 Stop selection (Pr. 250)
  - 4.14.3 Stop-on contact control function (Pr. 6, Pr. 48, Pr. 270, Pr. 275, Pr. 276)
  - 4.14.4 Brake sequence function (Pr. 278 to Pr. 285, Pr. 292)
  - 4.14.5 Orientation control (Pr. 350 to Pr. 366, Pr. 369, Pr. 393, Pr. 396 to Pr. 399)
- 4.15 Function assignment of external terminal and control
  - 4.15.1 Input terminal function selection (Pr. 178 to Pr. 189)
  - 4.15.2 Inverter output shutoff signal (MRS signal, Pr. 17)
  - 4.15.3 Condition selection of function validity by the second function selection signal (RT) and third function selection signal (X9) (RT signal, X9 signal, Pr. 155)
  - 4.15.4 Start signal operation selection (STF, STR, STOP signal, Pr. 250)
  - 4.15.5 Magnetic flux decay output shutoff signal (X74 signal)
  - 4.15.6 Output terminal function selection (Pr. 190 to Pr. 196)
  - 4.15.7 Detection of output frequency (SU, FU, FU2 , FU3, FB, FB2, FB3, LS signal, Pr. 41 to Pr. 43, Pr. 50, Pr. 116, Pr. 865)
  - 4.15.8 Output current detection function (Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167)
  - 4.15.9 Detection of output torque (TU signal, Pr. 864)
  - 4.15.10 Remote output function (REM signal, Pr. 495 to Pr. 497)
- 4.16 Monitor display and monitor output signal
  - 4.16.1 Speed display and speed setting (Pr. 37, Pr. 144, Pr. 505, Pr. 811)
  - 4.16.2 DU/PU, FM, AM terminal monitor display selection (Pr. 52, Pr. 54, Pr. 158, Pr. 170, Pr. 171, Pr. 268, Pr. 563, Pr. 564, Pr. 891)
  - 4.16.3 Reference of the terminal FM (pulse train output) and AM (analog voltage output) (Pr. 55, Pr. 56, Pr. 291, Pr. 866, Pr. 867)
  - 4.16.4 Terminal FM, AM calibration (Calibration parameter C0 (Pr. 900), C1 (Pr. 901))
- 4.17 Operation selection at power failure and instantaneous power failure
  - 4.17.1 Automatic restart after instantaneous power failure/flying start (Pr. 57, Pr. 58, Pr. 162 to Pr. 165, Pr. 299, Pr. 611)
  - 4.17.2 Power failure-time deceleration-to-stop function (Pr. 261 to Pr. 266, Pr. 294 )
- 4.18 Operation setting at fault occurrence
  - 4.18.1 Retry function (Pr. 65, Pr. 67 to Pr. 69)
  - 4.18.2 Fault code output selection (Pr. 76)
  - 4.18.3 Input/output phase loss protection selection (Pr. 251, Pr. 872)
  - 4.18.4 Overspeed detection (Pr. 374)
  - 4.18.5 Encoder signal loss detection (Pr. 376)
  - 4.18.6 Fault definition (Pr. 875)
- 4.19 Energy saving operation and energy saving monitor
  - 4.19.1 Energy saving control (Pr. 60)
  - 4.19.2 Energy saving monitor (Pr. 891 to Pr. 899)
- 4.20 Motor noise, EMI measures
  - 4.20.1 PWM carrier frequency and Soft-PWM control (Pr. 72, Pr. 240)
- 4.21 Frequency/torque setting by analog input (terminal 1, 2, 4)
  - 4.21.1 Function assignment of analog input terminal (Pr. 858, Pr. 868)
  - 4.21.2 Analog input selection (Pr. 73, Pr. 267)
  - 4.21.3 Analog input compensation (Pr. 73, Pr. 242, Pr. 243, Pr. 252, Pr. 253)
  - 4.21.4 Response level of analog input and noise elimination (Pr. 74, Pr. 822, Pr. 826, Pr. 832, Pr. 836, Pr. 849)
  - 4.21.5 Bias and gain of frequency setting voltage (current) (Pr. 125, Pr. 126, Pr. 241, C2(Pr. 902) to C7(Pr. 905), C12(Pr. 917) to C15(Pr. 918))
  - 4.21.6 Bias and gain of torque (magnetic flux) setting voltage (current) (Pr. 241, C16(Pr. 919) to C19(Pr. 920), C38 (Pr. 932) to C41 (Pr. 933))
- 4.22 Misoperation prevention and parameter setting restriction
  - 4.22.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75)
  - 4.22.2 Parameter write selection (Pr. 77)
  - 4.22.3 Reverse rotation prevention selection (Pr. 78)
  - 4.22.4 Display of applied parameters and user group function (Pr. 160, Pr. 172 to Pr. 174)
  - 4.22.5 Password function (Pr. 296, Pr. 297)
- 4.23 Selection of operation mode and operation location
  - 4.23.1 Operation mode selection (Pr. 79)
  - 4.23.2 Operation mode at power on (Pr. 79, Pr. 340)
  - 4.23.3 Start command source and frequency command source during communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551)
- 4.24 Communication operation and setting
  - 4.24.1 Wiring and configuration of PU connector
  - 4.24.2 Wiring and arrangement of RS-485 terminals
  - 4.24.3 Initial settings and specifications of RS-485 communication (Pr. 117 to Pr. 124, Pr. 331 to Pr. 337, Pr. 341, Pr. 549)
  - 4.24.4 Communication EEPROM write selection (Pr. 342)
  - 4.24.5 Mitsubishi inverter protocol (computer link communication)
  - 4.24.6 Modbus-RTU communication specifications (Pr. 331, Pr. 332, Pr. 334, Pr. 343, Pr. 539, Pr. 549)
  - 4.24.7 USB communication (Pr. 547, Pr. 548)
- 4.25 Special operation and frequency control
  - 4.25.1 PID control (Pr. 127 to Pr. 134, Pr. 575 to Pr. 577)
  - 4.25.2 Bypass-inverter switchover function (Pr. 57, Pr. 58, Pr. 135 to Pr. 139, Pr. 159)
  - 4.25.3 Load torque high speed frequency control (Pr. 4, Pr. 5, Pr. 270 to Pr. 274)
  - 4.25.4 Droop control (Pr. 286 to Pr. 288)
  - 4.25.5 Frequency setting by pulse train input (Pr. 291, Pr. 384 to Pr. 386)
  - 4.25.6 Encoder feedback control (Pr. 144, Pr. 285, Pr. 359, Pr. 367 to Pr. 369)
  - 4.25.7 Regeneration avoidance function (Pr. 665, Pr. 882 to Pr. 886)
- 4.26 Useful functions
  - 4.26.1 Cooling fan operation selection (Pr. 244)
  - 4.26.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259)
  - 4.26.3 Maintenance timer alarm (Pr. 503, Pr. 504)
  - 4.26.4 Current average value monitor signal (Pr. 555 to Pr. 557)
  - 4.26.5 Free parameter (Pr. 888, Pr. 889)
- 4.27 Setting of the parameter unit and operation panel
  - 4.27.1 PU display language selection (Pr. 145)
  - 4.27.2 Operation panel frequency setting/key lock selection (Pr. 161)
  - 4.27.3 Buzzer control (Pr. 990)
  - 4.27.4 PU contrast adjustment (Pr. 991)
- 4.28 Parameter clear
- 4.29 All parameter clear
- 4.30 Parameter copy and parameter verification
  - 4.30.1 Parameter copy
  - 4.30.2 Parameter verification
- 4.31 Check and clear of the faults history
5 PROTECTIVE FUNCTIONS
- 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
- 5.5 Check first when you have a trouble
  - 5.5.1 Motor does not start
  - 5.5.2 Motor or machine is making abnormal acoustic noise
  - 5.5.3 Inverter generates abnormal noise
  - 5.5.4 Motor generates heat abnormally
  - 5.5.5 Motor rotates in the opposite direction
  - 5.5.6 Speed greatly differs from the setting
  - 5.5.7 Acceleration/deceleration is not smooth
  - 5.5.8 Motor current is too large
  - 5.5.9 Speed does not accelerate
  - 5.5.10 Motor and machine vibrate
  - 5.5.11 Speed varies during operation
  - 5.5.12 Operation mode is not changed properly
  - 5.5.13 Operation panel (FR-DU07) display is not operating
  - 5.5.14 Power lamp is not lit
  - 5.5.15 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 Control mode-based parameter (function) correspondence table and instruction code list
- Appendix 3 Specification change
  - Appendix 3-1 SERIAL number check
  - Appendix 3-2 Changed functions
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) tsIPMt
  - 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 FR-A701 FR-A721-5.5K Instruction Manual

Mitsubishi FR-A701 FR-A721-5.5K Inverter manual cover

Pages 503

Year 2011

Language(s)

of 503

Mitsubishi FR-A701 FR-A721-5.5K Inverter

Instruction Manual

503 pages

Instruction Manual

267 pages

Mitsubishi FR-A701 FR-A721-5.5K Inverter Specification

The Mitsubishi FR-A701 FR-A721-5.5K Inverter is a sophisticated variable frequency drive designed to enhance motor control and energy efficiency in industrial applications. This inverter supports a power capacity of 5.5 kW, making it suitable for medium-sized motor requirements. It features advanced vector control technology, which ensures precise motor speed regulation and excellent torque performance, even at low speeds. The inverter operates with a three-phase power input, accommodating a wide voltage range to ensure compatibility with diverse electrical systems.

This model incorporates Mitsubishi's renowned energy-saving algorithms, optimizing power consumption and reducing operational costs. It is equipped with an intuitive user interface, simplifying parameter adjustments and monitoring. The inverter supports multiple communication protocols, including RS485 and Modbus RTU, facilitating seamless integration into existing automation systems. Safety features are robust, with built-in protective mechanisms against overcurrent, overvoltage, and overheating, enhancing operational reliability.

The FR-A701 FR-A721-5.5K is engineered for durability, featuring a compact and robust design suitable for harsh industrial environments. It is compliant with international standards, ensuring global applicability and reliability. The inverter's cooling system is efficient, maintaining optimal operating temperatures to prevent performance degradation. With its focus on flexibility, the inverter supports various motor types and applications, making it an ideal solution for industries seeking improved motor control and energy efficiency. Overall, the Mitsubishi FR-A701 FR-A721-5.5K Inverter is a versatile and dependable choice for industrial motor control, offering high performance, energy savings, and integration capability.

Mitsubishi FR-A701 FR-A721-5.5K Inverter F.A.Q.

How do I reset the Mitsubishi FR-A701 inverter to factory settings?

To reset the Mitsubishi FR-A701 inverter to factory settings, access the parameter setting mode by pressing the PU button. Navigate to parameter 77, set it to '1', and press the SET button. This will restore all settings to factory defaults.

What are the common causes of an overcurrent fault in the FR-A701 inverter?

Common causes of an overcurrent fault include short circuits in the motor, incorrect motor parameters, sudden changes in load, or power supply issues. Ensure that the motor connections are secure and that parameters are properly configured.

How can I perform regular maintenance on the FR-A721-5.5K inverter?

Regular maintenance includes cleaning the inverter's cooling fans and heat sinks, checking for loose connections, inspecting for signs of wear or damage, and verifying that the environment is free from excessive dust or moisture.

What steps should I follow to troubleshoot a communication error on the FR-A701 inverter?

To troubleshoot a communication error, check all cable connections for continuity and ensure correct wiring. Verify that the communication settings such as baud rate and protocol match between devices.

How can I adjust the acceleration and deceleration times on the FR-A721-5.5K inverter?

Adjust the acceleration time by setting parameter 7, and the deceleration time by setting parameter 8. Enter the desired time in seconds and confirm with the SET button.

What should I do if the inverter's display shows an E.OC1 error?

An E.OC1 error indicates an overcurrent during acceleration. Check the motor and load for binding or mechanical issues, and ensure that the acceleration time is not set too short for the application.

How can I extend the life of my Mitsubishi FR-A701 inverter?

To extend the life of the inverter, ensure proper ventilation and cooling, perform regular maintenance, avoid overloading, and use surge protection to protect against power surges.

Can I use the FR-A721-5.5K inverter with a single-phase motor?

No, the FR-A721-5.5K inverter is designed for three-phase motor applications. Using it with a single-phase motor may result in damage to the motor or inverter.

How do I update the firmware on the FR-A701 inverter?

To update the inverter's firmware, download the latest firmware version from Mitsubishi's official website. Use the appropriate interface (such as RS-485) to connect the inverter to a computer, and follow the provided instructions for installing the update.

What is the procedure for setting up a PID control on the FR-A721-5.5K inverter?

To set up PID control, access the parameter settings and configure the PID parameters (P, I, and D values) in the control mode settings. Ensure the feedback source is correctly connected and calibrated for accurate control.