To Next PageTo Next PageWhat causes the electronic thermal relay function pre-alarm on Mitsubishi Electric FR-E740-2.2K Inverter, and how to resolve it?
If the cumulative value of the electronic thermal O/L relay has reached 85% of the Pr. 9 Electronic thermal O/L relay setting or higher on your Mitsubishi Electric Inverter, reduce the load and frequency of operation. Also, set an appropriate value in Pr. 9 Electronic thermal O/L relay.
What causes output phase loss in Mitsubishi Electric FR-E740-2.2K Inverter?
If the Mitsubishi Electric Inverter detects a loss in one of the three output phases (U, V, W) during operation, ensure the cables are properly wired. If the motor capacity is smaller than the inverter capacity, choose matching inverter and motor capacities.
How to unlock password on Mitsubishi Electric Inverter?
If the Mitsubishi Electric Inverter is password locked, enter the password in Pr. 297 Password lock/unlock to unlock the password function before operating.
What to do for write disable error on Mitsubishi Electric FR-E740-2.2K?
If the Mitsubishi Electric Inverter is showing a write disable error, check the setting of Pr. 77 Parameter write selection, the settings of Pr. 31 to Pr. 36 (frequency jump), and the connection of PU and the inverter.
How to fix calibration error on Mitsubishi Electric FR-E740-2.2K Inverter?
If the Mitsubishi Electric Inverter shows a calibration error, check the settings of calibration parameters C3, C4, C6 and C7 (calibration functions).
General| Model | FR-E740-2.2K |
|---|---|
| Series | FR-E700 |
| Applicable Motor Capacity (kW) | 2.2 |
| Output Power | 2.2 kW |
| Output Voltage | 3-phase 380 to 480 V |
| Overload Capacity | 150% for 60 seconds |
| Protection Level | IP20 |
| Weight | 1.5 kg |
| Control Method | PWM Control |
| Output Frequency Range | 0.2 to 400 Hz |
| Frequency Range | 0.2 to 400 Hz |
| Protection Structure | IP20 |
| Input Voltage | 3-phase 380 to 480 V |
Lists essential safety and handling precautions for general inverter operation, wiring, and environment.
Provides a comprehensive list of inverter parameters, their settings, instruction codes, and related pages.
Details methods to adjust motor torque, including manual boost, slip compensation, and stall prevention.
Guides on selecting motors, implementing protection mechanisms, and performing auto-tuning.
Details methods for motor braking and stopping, including DC injection, regenerative braking, and stop-on-contact.
Explains how to assign functions to input and output terminals and select control signals for various operations.
Covers automatic restart, deceleration, and operation continuation functions during power interruptions.
Details settings for handling faults, including retry functions, phase loss protection, and earth fault detection.
Explains how to select and manage different operation modes (PU, External, Network) and their control sources.
Explains procedures to reset protective functions and recover from faults using operation panel or signals.
Provides a comprehensive list of fault codes, indications, and their corresponding reference pages.
Details common causes of operational issues like error messages, warnings, alarms, and faults with corrective actions.
Offers initial checks for common problems like motor not starting, abnormal noise, or improper operation mode.
