What to do if my Mitsubishi Inverter motor vibrates during acceleration/deceleration in torque control?
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Wendy BrownAug 9, 2025
If you're experiencing motor vibration and a lack of normal torque control during acceleration or deceleration, it's likely that the speed limit is activated. To resolve this, try reducing the acceleration/deceleration time. Alternatively, you can set the acceleration/deceleration time to "0". Keep in mind that the speed limit during acceleration/deceleration depends on the speed limit during constant speed.
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Jennifer GuzmanAug 17, 2025
Why does my Mitsubishi FR-A740-00023-EC Inverter motor rotate in the wrong direction with a small torque command?
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harrismaryAug 17, 2025
If the motor rotates in the opposite direction of the start signal when the torque command is small, the offset calibration of the torque command likely doesn't match. Recalibrate C16 Terminal 1 bias command (torque/magnetic flux) and C17 Terminal 1 bias (torque/magnetic flux).
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christophershahAug 25, 2025
How to fix non-linear output torque on Mitsubishi Inverter?
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Jacqueline Taylor MDAug 25, 2025
If the output torque isn't linear in response to the torque command, this indicates insufficient torque. Return the excitation ratio in Pr. 854 to the initial value.
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.
Details the specifications of main circuit terminals, including AC power input, inverter output, power supply for control circuit, and connections for brake resistors and DC reactors.
Explains the control circuit terminals, including input signals (STF, STR, STOP, etc.), output signals (relay outputs), and communication terminals (RS-485, USB).
Details the connection procedures for various optional units such as brake resistors, brake units, high power factor converters, and power regeneration common converters.
Provides measures to prevent surge voltages from deteriorating motor insulation when driving 400V class motors, including using insulation-enhanced motors and adjusting PWM carrier frequency.
Details the parts of the operation panel, including the display, buttons, and indicators, and explains basic operations like setting values and changing modes.
Provides a comprehensive list of parameters with their function, setting range, initial value, and refer to page information for detailed explanations.
Explains different control modes like V/F control, advanced magnetic flux vector control, real sensorless vector control, and vector control, including their characteristics and applications.
Provides guidance on selecting and protecting motors, including electronic thermal relay functions, applied motor settings, and auto-tuning procedures.
Details various methods for motor braking and stopping, including DC injection brake, zero speed control, servo lock, regenerative brake, and stop-on-contact control.
Explains how to prevent misoperations by configuring reset selections, disconnected PU detection, PU stop, parameter write protection, and reverse rotation prevention.
Provides instructions for replacing older FR-A500 series inverters with the FR-A700 series, highlighting differences in installation, wiring, and functions.
Outlines the main differences and compatibilities when replacing FR-A200 series inverters with the FR-A700 series, covering control methods and changed functions.
Lists parameters and their availability across different control modes (V/F, Vector, Real Sensorless Vector), along with instruction codes for communication.
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