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Why is the machine movement unstable with my Mitsubishi Electric 800 Inverter?
If the machine movement is unstable, it could be due to the speed control gain not being suitable for the machine or a slow response due to the inverter's acceleration/deceleration time setting. Try adjusting Pr.820 and Pr.821 or setting the optimum acceleration/deceleration time.
Why is my Mitsubishi Electric 800 motor vibrating?
If hunting (vibration or acoustic noise) occurs in the motor or the machine, it might be due to a speed control gain or torque control gain that is too high, or incorrect motor wiring. Try setting Pr.820 lower and Pr.821 higher, or setting Pr.824 Torque control P gain 1 (current loop proportional gain) lower. Also, check the wiring.
How to reset protective functions on a Mitsubishi Electric Inverter?
To reset the protective functions on your Mitsubishi Electric Inverter, you can press the STOP/RESET key on the operation panel. Note that this can only be done when a fault has occurred.
How to retain fault output signal in Mitsubishi Electric 800 Inverter?
To retain the fault output, opening the magnetic contactor (MC) provided on the input side of the inverter at a fault occurrence shuts off the control power to the inverter.
What to do if Mitsubishi Electric 800 Inverter shows fault or alarm?
When a protective function activates, take appropriate corrective action. After that, reset the Mitsubishi Electric Inverter and resume operation.
General| Series | 800 Series |
|---|---|
| Type | Inverter |
| Frequency Range | 0.1 to 400 Hz |
| Power Range | 0.4 kW to 560 kW (Varies by model) |
| Overload Capacity | 150% for 60 seconds, 200% for 3 seconds |
| Control Method | V/F Control |
| Communication | RS-485 |
| Protection Functions | Overcurrent, Overvoltage, Undervoltage, Ground fault, Short circuit |
| Storage Temperature | -20 to +65°C |
| Humidity | 95% RH or less (non-condensing) |
| Enclosure Rating | IP20 |
| Braking Unit | Built-in or External (depending on model) |
| Cooling Method | Fan cooling |
Details safety measures to prevent electric shock hazards.
Outlines precautions to prevent fire hazards when operating the inverter.
Describes safety measures to prevent physical injuries during installation, operation, and maintenance.
Lists and describes various peripheral devices that can be connected to the inverter.
Discusses EMI and leakage currents, including countermeasures for noise and grounding.
Provides a comprehensive checklist of points to verify before starting inverter operation.
Explains how to detect inverter failures and implement failsafe measures using status output signals.
Explains how to perform basic operations using the PU (operation panel) for starting and setting frequency.
Details basic operations using external signals for start commands and frequency commands.
Lists all parameters with their function, initial value, setting range, and refer to page.
Details how to set up speed control for Real sensorless vector, vector, and PM sensorless vector control.
Explains how to set up torque control for Real sensorless vector and vector control.
Describes various protective functions to prevent motor and inverter damage and ensure safe operation.
Describes the methods to reset the inverter after a protective function has activated.
Provides troubleshooting guidance for various inverter faults and warnings, including possible causes and corrective actions.
Offers initial troubleshooting steps for common inverter issues such as motor not starting or speed differences.
