To Next PageTo Next PageWhat causes regenerative overvoltage trip during constant speed on Mitsubishi Electric Inverter?
If regenerative energy causes the inverter's internal main circuit DC voltage to reach or exceed the specified value, the protective circuit is activated to stop the inverter output. Ensure that you keep load stable.
How to reset Mitsubishi Electric FR-D720S-0.75K Inverter?
Turn OFF the reset command.
What to do if Mitsubishi Electric FR-D720S-0.75K shows heatsink overheat?
If the heatsink overheats, the temperature sensor is actuated and the inverter output is shut off. Set the surrounding air temperature to within the specified limits.
What causes write disable error on Mitsubishi Electric FR-D720S-0.75K Inverter?
A write disable error can occur if you attempt to make parameter settings when Pr. 77 Parameter write selection has been set to disable parameter write, if the frequency jump setting range overlapped, or if the PU and inverter cannot make normal communication. Check the setting of Pr. 77 Parameter write selection, the settings of Pr. 31 to Pr. 36 (frequency jump), and the connection of the PU and inverter.
What does mode designation error mean on Mitsubishi Electric FR-D720S-0.75K?
A mode designation error appears if a parameter setting is attempted in the External or NET operation mode with Pr. 77 not set to "2", or if a parameter setting is attempted when the command source is not at the operation panel. Set the operation mode to the "PU operation mode" or disconnect the parameter unit (FR-PU04/FR-PU07) to make parameter settings.
How to fix write error during operation on Mitsubishi Electric FR-D720S-0.75K Inverter?
A write error during operation can occur when parameter write was performed during operation with a value other than "2" set in Pr. 77 and the STF (STR) is ON, or if the inverter is operating. Set "2" in Pr. 77 or stop the inverter before making parameter settings.
What causes stall prevention stop on Mitsubishi Electric Inverter?
If the output frequency has fallen to 1Hz by stall prevention operation and remains for 3s, a fault appears and the inverter output is shut off. Reduce the load weight to prevent this.
What to do when Mitsubishi Electric Inverter shows input phase loss?
If function valid setting (=1) is selected in Pr. 872 Input phase loss protection selection and one phase of the three phase power input is lost, the inverter output is shut off. Ensure that the cables are wired properly.
How to resolve analog input fault on Mitsubishi Electric Inverter?
An analog input fault appears if voltage(current) is input to terminal 4 when the setting in Pr.267 Terminal 4 input selection and the setting of voltage/current input switch are different. Give a frequency command by current input or set Pr. 267 Terminal 4 input selection, and voltage/current input switch to voltage input.
What happens when Mitsubishi Electric FR-D720S-0.75K has output phase loss?
If one of the three phases (U, V, W) on the inverter's output side (load side) is lost during inverter operation, the inverter stops the output. Ensure that the cables are wired properly.
General| Model | FR-D720S-0.75K |
|---|---|
| Series | FR-D700 |
| Rated Output Power | 0.75 kW |
| Horsepower | 1 HP |
| Control Method | V/f control |
| Protection Rating | IP20 |
| Cooling Method | Fan Cooled |
| Protection Features | Overcurrent, Overvoltage, Undervoltage, Overheat |
| Weight | 1.5 kg |
Addresses leakage currents, countermeasures, and selection of earth leakage current breakers.
General safety precautions for handling, wiring, operation, and maintenance to prevent product damage or failure.
Methods to ensure system safety by interlocking inverter status output signals and implementing backup systems.
Details on the names and functions of the operation panel components, including indicators, buttons, and display.
Comprehensive list of all inverter parameters, their setting ranges, initial values, and related pages.
Guidance on adjusting manual torque boost and magnetic flux vector control for optimal motor performance.
Guidelines for selecting motors, setting overheat protection, and using offline auto tuning for optimal performance.
Configuration of input and output terminals, communication settings, and safety stop functions.
Settings for automatic restart and power-failure deceleration-to-stop functions.
Configuration of retry functions, phase loss protection, and earth fault detection at start.
Functions to prevent incorrect operations, parameter rewrites, and unauthorized access.
Configuring the inverter's operation mode (PU, External, Network) and command sources.
Instructions for setting up communication with computers via PU connector using Mitsubishi or Modbus-RTU protocols.
Steps to reset protective functions after a fault, including power OFF/ON and using the RES signal.
A comprehensive list of error messages, warnings, alarms, and faults with their corresponding page references.
Detailed guide to diagnose and resolve common causes of error messages, warnings, and faults.
Troubleshooting steps for common issues like motor not starting, abnormal noise, or incorrect speed.
Detailed specifications including applicable motor capacity, rated capacity, current, voltage, and power supply requirements.
