Q: When will I choose the A840 series inverter?
A: A800 series inverters are generally used in heavy-duty occupations, such as lifting occupations, mixer occupations will use A800 series. At the same time, it is also a vector inverter, so customers can use the A800 series when they need to do closed-loop speed control, torque control or position control.
Q: What is the meaning of HD, ND, LD, SLD separation in the extra column of A840 selection sample?
A: HD: Heavy Load, ND: Normal Load, LD: Light Load, SLD: Ultra Light Load.
Q: How should Mitsubishi inverter A840 be selected (one belt and one belt)?
A: The selection method of Mitsubishi inverter is consistent with reference to additional capacity and additional current. Generally speaking, the additional current of a frequency converter with a motor is greater than 1.1 times of the additional current of the motor if the selection conditions are satisfied.
Q: How should Mitsubishi inverter A840 be selected (more than one belt)?
A: The selection method of Mitsubishi inverter is consistent with reference to additional capacity and additional current. Generally speaking, the additional current of a frequency converter with multiple motors is greater than 1.1 times of the sum of the additional currents of multiple motors. If the demand is started sequentially, an additional 6-8 times of the additional current of the final motor is added.
Q: Can the A840 inverter have a motor with the same power? Example: 7.5kw inverter with 7.5kw motor.
A: The selection method of Mitsubishi inverter is consistent with reference to additional capacity and additional current. The same power may not be completely compatible, we also have to verify whether the additional current of the inverter is satisfied, if the additional current of the motor X1.1 is greater than the additional current of the inverter, then there may be an overload alarm during operation, unable to work.
Q: Can the high-power A840 inverter be equipped with a low-power motor, and the power difference is large?
A: It is not appropriate for high-power inverter with low-power motor, if the difference in the power segment is too large, it will also produce an alarm of output phase loss (E.LF), the power difference is too much, if the maintenance parameters are not set properly, it will also produce the situation of burning the motor, so the selection is still rigorous, and the inverter and the motor must be matched.
Q: Can the low-power A840 inverter be equipped with a high-power motor?
A: The selection method of Mitsubishi inverter is consistent with reference to additional capacity and additional current. Generally speaking, the extra current of the low-power inverter will be less than that of the high-power motor, so this selection is not possible, and the selection still refers to the additional current of the inverter is greater than 1.1 times of the additional current of the motor, and the selection is carried out together with power and current.
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