Mitsubishi Electric FR-E800 Series Instruction Manual page 94

NOTE
• The PM sensorless vector control requires the following conditions.
• For the motor capacity, the rated motor current should be equal to or less than the rated inverter current. (Note that the motor
rated current should be 0.4 kW or higher (0.1 kW or higher for the 200 V class).)
If a motor with substantially low rated current compared with the inverter rated current is used, speed and torque accuracies
may deteriorate due to torque ripples, etc. Set the rated motor current to about 40% or higher of the inverter rated current.
• Offline auto tuning is performed.
• Single-motor operation (one motor to one inverter) is performed.
• The overall wiring length with the motor must be 100 m or less. (For the wiring length, refer to the Instruction Manual
(Connection).)
• A surge voltage suppression filter (FR-ASF/FR-BMF) is not used.
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4. Control Method