To Next PageTo Next PageWhy is the motor current large in my Mitsubishi Electric FR-A520-0.4K -55K?
If the motor current is large when using a Mitsubishi Electric Inverter, ensure that the load isn't too heavy. Also, verify that the torque boost (Pr. 0, Pr. 46, Pr. 112) setting is not excessively high.
Why does the speed greatly differ from the setting on my Mitsubishi Electric Inverter?
If the speed greatly differs from the setting on your Mitsubishi Electric Inverter, check that the frequency setting signal is correct by measuring the input signal level. Also, verify that the following parameter settings are proper: Pr. 1, Pr. 2, Pr. 902 to Pr. 905, Pr. 19. Ensure that the input signal lines are not affected by external noise by using shielded cables and check that the load is not too heavy.
What to do if the speed does not increase on my Mitsubishi Electric Inverter?
If the speed doesn't increase on your Mitsubishi Electric Inverter, verify that the maximum frequency (Pr. 1) setting is correct. Also, check that the load isn't too heavy and ensure that the torque boost (Pr. 0, Pr. 46, Pr. 112) setting is not too large, as it might activate the stall prevention function.
Why is acceleration/deceleration not smooth on my Mitsubishi Electric FR-A520-0.4K -55K?
If the acceleration or deceleration isn't smooth with your Mitsubishi Electric Inverter, check if the acceleration and deceleration time settings are not too short. Also, verify the load isn't too heavy, and ensure the torque boost (Pr. 0, Pr. 46, Pr. 112) setting isn't too large, which could activate the stall function.
Why is my Mitsubishi Electric FR-A520-0.4K -55K motor rotating in the opposite direction?
If the motor rotates in the opposite direction when using a Mitsubishi Electric Inverter, verify that the phase sequence of the output terminals U, V, and W is correct. Also, check that the start signals (forward rotation, reverse rotation) are connected properly.
Why does the speed vary during operation on my Mitsubishi Electric FR-A520-0.4K -55K Inverter?
If the speed varies during operation of your Mitsubishi Electric Inverter, check that the load isn't varying and that the frequency setting signal isn't varying or affected by induced noise. In advanced magnetic flux vector control, make sure the settings of the applied motor capacity (Pr. 80) and the number of applied motor poles (Pr. 81) are correct for the inverter and motor capacities. Also, verify that the wiring length is within 30m (98.42 feet) in advanced magnetic flux vector control and that the wiring length is correct in V/F control.
What to do if the operation mode is not changed properly on Mitsubishi Electric Inverter?
If the operation mode is not changing properly on your Mitsubishi Electric Inverter, ensure that the STF or STR signal is off. Also, check the Pr. 79 setting.
Why is the POWER lamp not lit on my Mitsubishi Electric FR-A520-0.4K -55K Inverter?
If the POWER lamp is not lit on your Mitsubishi Electric Inverter, ensure that the wiring and installation are correct.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | FR-A520-0.4K -55K |
| Category | Inverter |
| Language | English |
Provides essential information before operating the inverter, including unpacking and product checks.
Details the required devices and peripheral devices for proper inverter operation and connection.
Explains the physical appearance and internal structure of the inverter unit.
Provides instructions on how to properly install the inverter, considering environmental factors and clearances.
Details the procedures for connecting power supply, motor, and control circuits to the inverter terminals.
Covers additional wiring considerations including power harmonics, noise reduction, and leakage currents.
Outlines the necessary preparations and checks before operating the inverter, including device setup and parameter configuration.
Explains how to operate the inverter using various modes: external, PU, combined, and communication.
A comprehensive list of all available parameters, their setting ranges, and factory default values.
Detailed explanations of key parameters and their functions for configuring inverter behavior.
Details various error codes, their definitions, and causes for inverter operation faults.
Provides guidance on identifying and resolving common faults and issues encountered during inverter operation.
Outlines essential safety precautions and procedures for maintaining and inspecting the inverter unit.
Presents the technical specifications for different inverter models, including electrical and physical characteristics.
Provides dimensional drawings and mounting hole information for various inverter models.
Lists available optional units for the inverter, detailing their application and specifications.
Provides a list of data codes used for communication and parameter settings with the inverter.
Organizes parameters based on their intended purpose for easier selection and configuration.
