Mitsubishi Electric FR-D720S SC EC Instruction Manual page 225

Parameter
● This function is valid only when a value other than "9999" is set in Pr. 80 and General-
purpose magnetic flux vector control is selected.
● You can copy the offline auto tuning data (motor constants) to another inverter with the PU
(FR-PU07).
● Even when motors (other manufacturer's motor, SF-JRC, etc.) other than Mitsubishi stand-
ard motor, high efficiency motor (SF-JR, SF-HR 0.2kW or more), and Mitsubishi constant-
torque motor (SF-JRCA (four-pole), SF-HRCA 0.2kW to 7.5kW) are used or the wiring length
is long (30m or longer as a reference), using the offline auto tuning function runs the motor
with the optimum operating characteristics.
● Tuning is enabled even when a load is connected to the motor.
b
CAUTION:
As the motor may run slightly, fix the motor securely with a mechanical brake or make
sure that there will be no problem in safety if the motor runs (caution is required
especially in elevator). Note that tuning performance is unaffected even if the motor
runs slightly.
● Reading/writing/copy of motor constants tuned by offline auto tuning (Pr. 90) are enabled.
● The offline auto tuning status can be monitored with the operation panel and PU (FR-PU04/
FR-PU07).
● Do not connect a surge voltage suppression filter (FFR-DT or FFR-SI) between the inverter
and motor.
FR-D700 SC EC
Selection and protection of a motor
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