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WIN-9_F Series User Manual 5.2.2 Automatic Restart After Momentary Power Loss (P051) When momentary power loss occurs, operation restarts automatically. Setting Description 0 Not provided (factory default) 1* Continuous operation after power recovery within 2 seconds 2 ** Continuous operation after power recovery within control logic time (no fault output) * Holds the operation signal to continue operation after recovery from momentary power loss. ** When “2” is selected, operation restarts if power supply voltage returns to its normal level (level before power loss). No fault signal is output. 5.2.3 Carrier Frequency (P050) This function sets the inverter output transistor switching frequency (carrier frequency). This is used to reduce motor noise and leakage current. Setting Carrier Frequency (kHz) 1 2.5 2 5.0 3 8.0 4 10.0 5 12.5 6 15.0 Metallic Noise from Motor Leakage Current Louder Smaller Inaudible Larger fc = carrier frequency fc = carrier frequency 2.5kHz 1.0kHz 2.5kHz 1.0kHz fc = 12 fout 83.3Hz 208.3Hz n050 = “7” fout fc = 24 fout 41.6Hz 104.1Hz n050 = “8” fc = carrier frequency 2.5kHz 1.0kHz fc = 36 fout 27.7Hz 69.4Hz n050 = “9” fout Custom Setting of Carrier Frequency Patterns ● 36 ● fout