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salazarkevinSep 23, 2025
What to do if Mitsubishi Electric Inverter has PU stop?
- KklunaSep 23, 2025
If the Mitsubishi Electric Inverter experiences a PU stop, turn the start signal off and release.
To Next PageTo Next PageWhat to do if Mitsubishi Electric Inverter has PU stop?
If the Mitsubishi Electric Inverter experiences a PU stop, turn the start signal off and release.
What to do if Mitsubishi Electric Inverter trips due to overcurrent during acceleration?
Here are some possible solutions: 1. Increase the acceleration time. 2. If "E.OC1" is continuously lit at startup, disconnect the motor and then start the inverter. 3. Inspect the wiring to ensure there is no output short circuit or ground fault. 4. Enable stall prevention operation. 5. Set the base voltage (rated voltage of the motor) in Pr. 19 Base frequency voltage.
How to fix write disable error on Mitsubishi Electric fr-e740-016 Inverter?
A write disable error on your Mitsubishi Electric Inverter may occur due to several reasons: * If Pr. 77 Parameter write selection is set to disable parameter write, check this setting. * If the frequency jump setting range is overlapping, review the settings of Pr. 31 to Pr. 36 (frequency jump). * If the PU and inverter are not communicating correctly, verify the connection between the PU and the inverter.
What to do if Mitsubishi Electric Inverter shows regenerative brake prealarm?
If you're seeing a regenerative brake prealarm on your Mitsubishi Electric Inverter: 1. Try increasing the deceleration time. 2. Make sure that the Pr. 30 Regenerative function selection and Pr. 70 Special regenerative brake duty settings are configured correctly.
Why is Mitsubishi Electric fr-e740-016 Inverter showing electronic thermal relay function prealarm?
If your Mitsubishi Electric Inverter is showing an electronic thermal relay function prealarm: 1. Reduce the load and frequency of operation. 2. Set an appropriate value in Pr. 9 Electronic thermal O/L relay.
How to resolve calibration error on Mitsubishi Electric Inverter?
To address a calibration error on your Mitsubishi Electric Inverter, check the settings of C3, C4, C6, and C7 (calibration functions).
What to do if Mitsubishi Electric fr-e740-016 has analog input fault?
If your Mitsubishi Electric Inverter is showing an analog input fault, either provide a frequency command via current input or set Pr. 267 Terminal 4 input selection, and voltage/current input switch to voltage input.
How to resolve mode designation error on Mitsubishi Electric Inverter?
To resolve a mode designation error on your Mitsubishi Electric Inverter, ensure you make parameter settings after setting the operation mode to the "PU operation mode", or after setting "2" in Pr. 77.
How to fix ground fault on Mitsubishi Electric fr-e740-016?
To fix a ground fault on your Mitsubishi Electric Inverter, locate and repair the ground fault.
What to do if Mitsubishi Electric fr-e740-016 shows input phase loss?
If your Mitsubishi Electric Inverter indicates an input phase loss: * Ensure the cables are wired correctly. * Repair any breaks in the cable. * Verify the Pr. 872 Input phase loss protection selection setting.
General| Model | FR-E740-016 |
|---|---|
| Series | FR-E700 |
| Input Voltage | 3-Phase 380-480VAC |
| Protection Level | IP20 |
| Weight | 1.5 kg |
| Control Method | V/F control |
| Frequency Range | 0.5-400 Hz |
| Frame Size | FR-E740 |
Unpack the inverter and check the capacity plate on the front cover and the rating plate on the inverter side face to ensure that the product agrees with your order and the inverter is intact.
Describes the inverter and peripheral devices such as power supply, reactors, noise filters, and brake units.
Provides instructions for removing and reinstalling the front cover and wiring cover of the inverter.
Details considerations for installing the inverter in an enclosure, including environmental standards and cooling systems.
Explains the terminal connection diagram for three-phase 400V power input, including main and control circuits.
Details the specifications of main circuit terminals, including power input, output, and connections for various options.
Provides specifications for control circuit terminals, including input signals, output signals, and communication interfaces.
Describes how to connect external units like brake resistors, brake units, high power factor converters, and DC reactors.
Discusses measures for reducing electromagnetic noise and leakage currents to prevent malfunctions.
Explains the necessity of installing optional reactors (FR-HAL, FR-HEL) to prevent excessive peak current.
Recommends the use of magnetic contactors on the inverter's input side for safety and power saving.
Addresses measures for 400V class motors, including motor insulation and PWM carrier frequency limitations.
Lists crucial precautions for operating the inverter correctly to ensure product life and prevent damage.
Explains how to provide an interlock using inverter status output signals for accident prevention.
Describes the names and functions of the operation panel, including indicators, controls, and display modes.
Provides a comprehensive list of parameters, their settings, and references for simple variable-speed operation.
Explains the available control modes: V/F control, advanced magnetic flux vector control, and general-purpose magnetic flux vector control.
Details methods for adjusting motor torque, including manual torque boost and advanced magnetic flux vector control.
Explains how to set the upper and lower limits of the output frequency and avoid mechanical resonance.
Describes how to set the base frequency, voltage, and load pattern selection for optimal V/F characteristics.
Explains how to set frequency using external signals like multi-speed operation, jog operation, and remote setting.
Covers setting acceleration/deceleration times, patterns, and automatic adjustment for optimal performance.
Provides guidance on selecting motors and protecting them from overheat and other issues.
Details methods for motor braking and stopping, including DC injection brake, regenerative brake, and stop-on-contact control.
Explains how to assign functions to input and output terminals for flexible control and monitoring.
Describes how to select and display various operating statuses and monitor signals on the operation panel and terminals.
Explains settings for automatic restart after power failure and power-failure deceleration stop functions.
Details functions for handling faults, including retry operations and phase loss protection.
Explains the optimum excitation control for improving motor efficiency and saving energy.
Provides techniques for reducing motor noise, EMI, and mechanical resonance.
Describes how to set frequency using analog input signals, including bias and gain adjustments.
Covers functions for preventing misoperation, such as reset selection and parameter write protection.
Explains how to select the inverter's operation mode and location for optimal control.
Details the procedures for resetting protective functions, including using the operation panel, power cycling, or RES signal.
Provides a comprehensive list of all fault and alarm indications with their corresponding page numbers for detailed information.
Lists common causes for error messages, warnings, and alarms, along with recommended corrective actions.
Shows the mapping between actual alphanumeric characters and the digital characters displayed on the operation panel.
Provides initial checks to perform when encountering common problems like motor not starting or abnormal noise.
Details daily and periodic inspection items, including checks for motor faults, environment, cooling, vibration, noise, and overheat.
Explains how to measure main circuit voltages, currents, and powers using appropriate instruments.
Provides the inverter rating specifications, including applicable motor capacity, rated current, and voltage.
Lists common specifications for control methods, output frequency, input signals, and protective functions.
Shows the outline dimension drawings for various inverter models and options.
Provides instructions for installation and continuous use when replacing the FR-E500 series with the FR-E700 series.
