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Mitsubishi Electric FR-E720-2.2K-NE - User Manual

Mitsubishi Electric FR-E720-2.2K-NE
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FR-E700
INSTRUCTION MANUAL (BASIC)
FR-E720-0.1K to 15K-NE
FR-E740-0.4K to 15K-NE
FR-E720S-0.1K to 2.2K-NE
INVERTER
Ethernet communication function
IB(NA)-0600712ENG-B(1706)MEE Printed in Japan Specifications subject to change without notice.
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HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
CONTENTS
OUTLINE ...................................................................................1
INSTALLATION AND WIRING ................................................... 6
PRECAUTIONS FOR USE OF THE INVERTER ........................20
FAILSAFE OF THE SYSTEM WHICH USES THE INVERTER ...23
DRIVING THE MOTOR ............................................................24
ENERGY SAVING OPERATION FOR FANS AND PUMPS ........35
PARAMETERS .........................................................................36
TROUBLESHOOTING ..............................................................41
PRECAUTIONS FOR MAINTENANCE AND INSPECTION........46
SPECIFICATIONS....................................................................48
Thank you for choosing this Mitsubishi Electric Inverter.
This Instruction Manual (Basic) provides handling information and precautions for use of the equipment.
Please forward this Instruction Manual (Basic) to the end user.
To obtain the related manuals
Contact where you purchased the inverter, your Mitsubishi Electric sales
representative, or the nearest Mitsubishi Electric FA Center for the
following manuals:
FR-E700 Instruction Manual (Applied) [IB(NA)-0600277ENG]
FR-E700-NE Ethernet Function Manual [IB(NA)-0600724ENG]
These manuals are required if you are going to utilize functions and
performance.
The PDF manuals are also available for download at the Mitsubishi
Electric FA Global Website (URL: http://www.MitsubishiElectric.co.jp/fa).
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Table of Contents

Questions and Answers

  • A
    amarshallAug 17, 2025
    What to do if Mitsubishi Electric Inverter has overcurrent trip during constant speed?
    • J
      John StarkAug 18, 2025
      If your Mitsubishi Electric Inverter is experiencing an overcurrent trip during constant speed operation, it indicates that an overcurrent has occurred. To address this: * Ensure the load is stable. * Inspect the wiring for any output short circuits or ground faults. * Lower the stall prevention operation level. * Activate the stall prevention operation and the fast-response current limit operation (Pr.156). * If the motor is coasting, bring it to a stop before sending a start command. Alternatively, you can use the automatic restart after instantaneous power failure/flying start function.
  • W
    William HoodAug 20, 2025
    How to resolve overcurrent trip during deceleration or stop on Mitsubishi Electric FR-E720-2.2K-NE?
    • J
      justin11Aug 21, 2025
      If the Mitsubishi Electric Inverter experiences an overcurrent trip during deceleration or stop, it signifies that an overcurrent has occurred during these phases. Here’s what you can do: * Increase the deceleration time. * Check the wiring for output short circuits or ground faults. * Verify that the mechanical brake isn't activating too early. * Lower the stall prevention operation level. * Activate the stall prevention operation and the fast-response current limit operation (Pr.156). * If the motor is coasting, stop it before issuing a start command. Alternatively, use the automatic restart after instantaneous power failure/flying start function.
  • A
    Anne YoungAug 25, 2025
    How to fix regenerative overvoltage trip during deceleration or stop on Mitsubishi Electric FR-E720-2.2K-NE?
    • K
      kaitlynhowardAug 25, 2025
      If your Mitsubishi Electric Inverter is tripping due to regenerative overvoltage during deceleration or stop, it means overvoltage has occurred. Try these solutions: * Increase the deceleration time to match the load's moment of inertia. * Make the brake cycle longer. * Use the regeneration avoidance function (Pr. 882, Pr. 883, Pr.885, Pr.886). * Consider using a brake resistor, brake unit, or power regeneration common converter (FR-CV) as needed.
  • K
    Kevin HernandezAug 27, 2025
    How to resolve regenerative overvoltage trip during acceleration on Mitsubishi Electric FR-E720-2.2K-NE?
    • R
      Robert BlanchardAug 27, 2025
      If your Mitsubishi Electric Inverter is tripping due to regenerative overvoltage during acceleration, it means overvoltage has occurred during acceleration. Here are some steps to take: * Decrease the acceleration time. * Implement the regeneration avoidance function using parameters Pr. 882, Pr. 883, Pr.885, and Pr. 886. * Ensure that the stall prevention operation level (Pr. 22) is set correctly.
  • B
    Belinda ClarkAug 30, 2025
    What to do if Mitsubishi Electric Inverter shows inverter overload trip?
    • S
      Sarah BarnesAug 31, 2025
      If the Mitsubishi Electric Inverter experiences an overload trip (electronic thermal O/L relay function), it signifies that the electronic thermal relay function for inverter element protection has been activated. To address this: * Increase the acceleration time. * Adjust the torque boost setting (Pr. 0). * Configure the load pattern selection setting (Pr. 14) according to the machine's load pattern. * Reduce the load. * Ensure the surrounding air temperature is within specified limits.
  • B
    ballstephenSep 3, 2025
    What to do if Mitsubishi Electric Inverter heatsink overheat?
    • S
      serranojessicaSep 3, 2025
      If your Mitsubishi Electric Inverter's heatsink is overheating, it indicates that the heatsink temperature is too high. To address this: * Ensure the surrounding air temperature is within the specified limits. * Clean the heatsink to remove any dust or obstructions. * Replace the cooling fan if it is not functioning correctly.
  • M
    michaelpattonSep 6, 2025
    Why does Mitsubishi Electric Inverter show input phase loss?
    • S
      smithcynthiaSep 6, 2025
      If the Mitsubishi Electric Inverter is indicating an input phase loss, it means one of the three input phases is missing or the phase-to-phase voltage is significantly unbalanced. To resolve this: * Ensure all cables are correctly wired. * Repair any breaks in the cable. * Check the input phase loss protection setting (Pr. 872). If the three-phase input voltage is largely unbalanced, set Pr. 872 to '0' to disable input phase loss protection.
  • J
    Jesus BriggsSep 9, 2025
    What causes stall prevention stop on Mitsubishi Electric Inverter?
    • G
      graymelissaSep 9, 2025
      If the Mitsubishi Electric Inverter has a stall prevention stop, it means the output frequency has decreased to 1Hz because of deceleration caused by excessive motor load. To fix this, reduce the load and check the stall prevention operation level setting (Pr. 22).
  • E
    Elizabeth PooleNov 13, 2025
    How to fix overcurrent trip during acceleration on Mitsubishi Electric FR-E720-2.2K-NE?
    • D
      David ThompsonNov 13, 2025
      If the Mitsubishi Electric Inverter experiences an overcurrent trip during acceleration, it means that an overcurrent has occurred. To resolve this, try the following: * Increase the acceleration time. * Check for output short circuits or ground faults in the wiring. * If 'E.OC1' appears consistently at start, disconnect and restart the inverter. If the problem persists, the inverter may be faulty and you should contact your sales representative. * Ensure the base frequency is correctly set (Pr. 3) for your motor (50Hz). * Reduce the stall prevention operation level and activate both stall prevention and fast-response current limit operations (Pr.156). * For regenerative driving, adjust the base voltage in Pr. 19. * If the motor is coasting, stop it before issuing a start co...

Summary

1 OUTLINE

1.1 Product Checking and Parts Identification

Identifies inverter model, capacity, and component names for proper checking.

Safety Precautions

1. Electric Shock Prevention

Details warnings and precautions to avoid electric shock during installation, operation, and maintenance.

2. Fire Prevention

Outlines necessary measures to prevent fire hazards related to inverter installation and operation.

3. Injury Prevention

Highlights precautions to prevent physical injury from incorrect handling, heat, or electrical hazards.

2 INSTALLATION AND WIRING

3 PRECAUTIONS FOR USE OF THE INVERTER

1. Wiring and Cable Usage

2. Output Terminal Power Application

Warns against applying power to output terminals (U, V, W) to prevent inverter damage.

4. High Voltage and Component Precautions

Warns about high voltage after power off and against connecting specific components to output terminals.

4 FAILSAFE OF THE SYSTEM WHICH USES THE INVERTER

1. Interlock Methods Using Inverter Status Signals

5 DRIVING THE MOTOR

5.1 Start;Stop from Operation Panel (PU Operation)

6 ENERGY SAVING OPERATION FOR FANS AND PUMPS

7 PARAMETERS

7.1 Parameter List

Provides a comprehensive list of inverter parameters with their settings, initial values, and descriptions.

8 TROUBLESHOOTING

8.1 Reset Method of Protective Function

8.2 List of Fault Displays

Lists common fault/alarm indications, their descriptions, and corrective actions.

8.3 Check First When You Have a Trouble

9 PRECAUTIONS FOR MAINTENANCE AND INSPECTION

10 SPECIFICATIONS

Mitsubishi Electric FR-E720-2.2K-NE Specifications

General IconGeneral
ModelFR-E720-2.2K-NE
SeriesFR-E700
Rated Output Power2.2 kW
Horsepower3 HP
Output Current11 A
Braking ResistorOptional
Protection ClassIP20
Cooling MethodFan Cooled
Output PhaseThree-phase
Control MethodV/f control
Frequency Range400 Hz
Protection FeaturesOvercurrent, Overvoltage, Undervoltage
Operating Temperature-10 to +50 °C
Storage Temperature-20°C to +65°C
Humidity95% RH or less (non-condensing)
AltitudeUp to 1000m
Weight2.5 kg

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