Hitachi SJ Series User Manual page 307

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Reducing electromagnetic noise of

• I want to lower the electromagnetic noise of motor

produced by the carrier frequency

• Sprinkle carrier pattern selection can be changed

using the [bb102] setting.

• The inverter carrier frequency is about the same as

when output at 3 kHz.

Sprinkle carrier

pattern selection

• Changing the sprinkle carrier pattern selection cuts

the electromagnetic noise of a certain area and

changes the electromagnetic noise of the motor.

Disabled (Follows other carrier frequency setting)

Inverter Function

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