3. Test Operation and Adjustment
3-10
CAUTION
Precautions for executing IM speed sensor-less vector control or IM vector control with speed
sensor automatic tuning
• During automatic tuning, the motor may rotate, so always confirm safety before starting automatic
tuning.
• Separate the motor from the load and machine, etc., and run the motor as a stand alone unit during
automatic tuning.
• The motor may vibrate and rotate during automatic tuning.
If the vibration is large, turn the
key immediately to stop operation.
• Always check the safety on the load side before executing automatic tuning. The motor will
automatically start rotating during automatic tuning.
• If the automatic tuning function does not end correctly, always turn the inverter power OFF before
investigating or confirming the operation.
• Automatic tuning can be carried out only in the Local Mode.
• Always ground the motor and inverter.
• If the load is less than 10% and the fluctuation does not occur, automatic tuning can be carried out with
the load and machine connected. However, the performance may not be complete.
• The contact output FLT will function if the automatic tuning does not end correctly. In equipment that
uses this contact, keep the operation of the related devices in mind.
