To Next PageTo Next PageHow to fix Mitsubishi Electric FR-D740-012 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 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-D740-012 |
| Rated Output Current | 12A |
| Output Rating | 3.7 kW |
| Horsepower | 5 HP |
| Cooling Method | Fan cooled |
| Protection | IP20 |
| Frequency Range | 0.5 to 400Hz |
| Control Method | V/F control, vector control |
| Protection Features | Overvoltage |
Illustrates the terminal connections for main circuit, control circuit, and option units, including notes on noise prevention.
Essential safety guidelines for handling, wiring, and operating the inverter to prevent damage or injury.
Describes interlock methods using inverter status output signals and backup methods outside the inverter for safety.
A comprehensive list of all inverter parameters, their settings, and related pages for detailed information.
Details how to adjust motor torque and current using parameters like Torque Boost and Slip Compensation.
Covers motor overheat protection, applied motor settings, and offline auto tuning for best motor performance.
Details how to assign functions to input and output terminals for controlling the inverter.
Describes functions for automatic restart and power-failure deceleration to ensure safe operation.
Explains the procedures for resetting the inverter after a fault or alarm, including power reset and signal reset.
A comprehensive list of fault and alarm codes displayed on the operation panel, with corresponding names and page references.
Provides detailed causes and corrective actions for various error messages, warnings, alarms, and faults.
A troubleshooting guide to check common issues like motor not starting, abnormal noise, or incorrect speed.
