Omron MX2 Series User Manual page 309

Precautions for Correct Use
• Although high-tone sound occurs during startup when the PM Motor Starting Method Selec-
tion (H123) is set to 01 (Initial pole position estimation enabled), it is not a fault.
• When the PM Motor Starting Method Selection (H123) is set to 01 (Initial pole position esti-
mation enabled), start the inverter with the motor stopped.
Starting the inverter with the motor rotation may cause the motor to rotate excessively for
positioning or stall.
Multi-function Compact Inverter 3G3MX2-V1 User's Manual (I585-E1)
6 Vector Control and Applied Functions
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