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Mitsubishi Electric FR-E720-0.2K-NE - User Manual

Mitsubishi Electric FR-E720-0.2K-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

  • S
    sheri08Aug 17, 2025
    What to do if Mitsubishi Electric FR-E720-0.2K-NE has overcurrent trip during constant speed?
    • P
      Paula PopeAug 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.
  • D
    Debra BrowningAug 21, 2025
    How to resolve overcurrent trip during deceleration or stop on Mitsubishi Electric FR-E720-0.2K-NE Inverter?
    • C
      Courtney ThomasAug 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.
  • J
    Jasmine CastroAug 25, 2025
    How to fix regenerative overvoltage trip during deceleration or stop on Mitsubishi Electric Inverter?
    • R
      Renee BlairAug 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.
  • A
    Angela MyersAug 27, 2025
    How to resolve regenerative overvoltage trip during acceleration on Mitsubishi Electric FR-E720-0.2K-NE Inverter?
    • J
      Jacob SanchezAug 28, 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.
  • K
    Kimberly LeachAug 31, 2025
    What to do if Mitsubishi Electric FR-E720-0.2K-NE shows inverter overload trip?
    • K
      Kelly WilsonAug 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.
  • M
    Mr. Mark Alexander Jr.Sep 3, 2025
    What to do if Mitsubishi Electric FR-E720-0.2K-NE heatsink overheat?
    • T
      Timothy MurphySep 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.
  • R
    Rachel VaughanSep 6, 2025
    Why does Mitsubishi Electric FR-E720-0.2K-NE Inverter show input phase loss?
    • E
      Elizabeth ThomasSep 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
    Jessica BenitezSep 10, 2025
    What causes stall prevention stop on Mitsubishi Electric Inverter?
    • J
      Jeanette HenrySep 10, 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).
  • S
    Seth BurnsNov 13, 2025
    How to fix overcurrent trip during acceleration on Mitsubishi Electric FR-E720-0.2K-NE Inverter?
    • O
      olsondominicNov 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

Outline

Operation Panel Functions

Details the names and functions of the inverter's operation panel controls.

Basic Operation and Parameter Settings

Installation and Wiring

Inverter Installation Guidelines

Provides instructions for mounting, clearances, and environmental conditions.

Wiring Connections

Details terminal connections, specifications, and wiring diagrams.

Precautions for Use

General Safety and Wiring Precautions

Essential safety guidelines for wiring, operation, and component handling.

Component and System Safety

Driving the Motor

PU Operation: Start;Stop and Frequency Setting

Operating the motor via the operation panel, including frequency setting.

External Operation: Start;Stop and Frequency Setting

Controlling the motor using external terminals and signals.

Advanced Motor Control Methods

Parameters

Parameter List

Comprehensive reference for all inverter parameters.

Troubleshooting

Resetting Protective Functions

Procedures for resetting inverter faults and protective functions.

List of Fault Displays

Identifies fault codes, their causes, and corrective actions.

Common Troubleshooting Checks

Specifications

Inverter Rating Specifications

Warranty

Warranty Period and Coverage

Mitsubishi Electric FR-E720-0.2K-NE Specifications

General IconGeneral
ModelFR-E720-0.2K-NE
SeriesFR-E700
TypeInverter
Rated Output Capacity (kVA)0.4
Rated Output Power0.2 kW
Applicable Motor Capacity0.2 kW
Input Frequency50/60 Hz
Rated Output Current1.2 A
Max Output Frequency400 Hz
Cooling MethodSelf-cooling
Protection RatingIP20
Storage Temperature-20 to +65°C
Communication InterfaceRS-485
Rated Input Voltage200-240V
Output Voltage3-phase 200-240 V AC
Output Frequency0.5 to 400 Hz
Overload Current Rating150% for 60 s
Control MethodV/F control
Protection ClassIP20
Operating Temperature-10 to +50°C

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