To Next PageTo Next PageHow to fix Mitsubishi Electric FR-D720-008 motor rotating in the opposite direction?
To correct the motor's rotation direction, connect the phase sequence of the output cables (terminals U, V, W) to the motor correctly. Also, check the wiring of the start signals, ensuring forward rotation (STF) and reverse rotation (STR) are properly connected.
What to do if Mitsubishi Electric FR-D720-008 Inverter motor generates heat abnormally?
If the motor is generating heat abnormally, first, clean the motor fan and improve the environment, especially if dust has accumulated. Check the motor's insulation to ensure it's sufficient. Verify the inverter output voltage (U, V, W) is balanced and then check the Pr. 71 Applied motor setting. Note that if the motor current is large, you should refer to "5.5.11 Motor current is too large".
General| Series | FR-D700 |
|---|---|
| Model | FR-D720-008 |
| Output Capacity | 0.75 kW |
| Horsepower | 1 HP |
| kW | 0.75 kW |
| Input Frequency | 50/60 Hz |
| Protection | IP20 |
| Protection Features | Overcurrent, Overvoltage, Undervoltage, Overheating |
| Cooling Method | Fan Cooled |
| Input Voltage | 200-240V AC |
| Output Frequency | 0-400 Hz |
| Control Method | V/F Control |
Verify inverter model, check capacity plate, rating plate, and ensure product order agreement and intactness.
Overview of peripheral devices that can be connected to the inverter, such as power supplies, reactors, and parameter units.
Instructions for removing and reinstalling the front and wiring covers of the inverter unit.
Guidelines for designing the inverter installation environment, covering temperature, humidity, atmosphere, altitude, and vibration.
Basic wiring procedures, including terminal connection diagrams for main and control circuits.
Details on the main circuit terminals, their specifications, and the arrangement for power supply and motor wiring.
Specifications for control circuit terminals, including input signals, output signals, and communication interfaces.
Procedures for connecting various stand-alone option units, such as brake resistors and brake units.
Measures to address electromagnetic interference and leakage currents, including suppression techniques and data examples.
Guidelines for installing AC and DC reactors to suppress power supply harmonics and improve power factor.
Recommendations for using magnetic contactors on the inverter's input and output sides for safety and proper operation.
Measures to prevent surge voltage and protect insulation when driving 400V class motors with an inverter.
General precautions for handling and operating the inverter, including wiring, static electricity, and handling of components.
Methods for implementing failsafe systems using inverter status output signals to prevent accidents and ensure safe operation.
Description of the inverter's operation panel, including its components and their functions.
A comprehensive list of all parameters, their settings, initial values, and refer pages for detailed information.
Methods for adjusting the motor's output torque and current, including torque boost and slip compensation.
Techniques to limit the output frequency, including setting maximum/minimum frequencies and frequency jumps.
Options for setting the V/F pattern, including base frequency, voltage, and load pattern selection.
Methods for setting the frequency using external terminals, including multi-speed operations and analog inputs.
Configuration of acceleration and deceleration times, including linear and S-pattern options.
Guidance on selecting the appropriate motor and implementing protective measures like overheat protection.
Methods for controlling motor braking and stopping, including DC injection brake and regenerative brake selection.
How to assign functions to the inverter's input and output terminals for various control operations.
Customizing the display of motor speed and selecting output signals for monitoring various inverter parameters.
Configuration for automatic restart after power interruptions and power failure deceleration stop functions.
Settings related to fault recovery, such as retry functions and input/output phase loss protection.
Optimizing inverter operation for energy saving, particularly through optimum excitation control.
Techniques to reduce motor noise, manage EMI, and avoid mechanical resonance.
Configuration for setting the frequency using analog input signals from terminals 2 and 4.
Measures to prevent accidental changes to parameters and misoperations, including reset selection and password functions.
Choosing the inverter's operation mode and selecting command sources for start and frequency.
Procedures for establishing communication with the inverter using a PU connector and computer link.
Procedures for resetting the inverter's protective functions after a fault or alarm occurs.
A comprehensive list of inverter fault and alarm codes, their indications, and corresponding page numbers for details.
Common causes of inverter errors and operational issues, along with recommended corrective actions.
A mapping between the digital characters displayed on the operation panel and their actual alphanumeric representations.
A guide for initial troubleshooting steps to identify and resolve common issues with the motor and inverter.
Guidelines for daily and periodic inspections of the inverter, covering various components and environmental factors.
Procedures and recommended instruments for measuring main circuit voltages, currents, and powers for diagnostic purposes.
Detailed electrical and mechanical specifications for various inverter models, including applicable motor capacity and power supply requirements.
General specifications applicable to the inverter series, covering control methods, frequency settings, and protective functions.
Dimensional drawings and mounting information for the inverter and its optional components.
