6 -38 Operation Avoiding Resonance (Jump Frequency Function)The jump frequency function operates the motor while avoiding resonance caused by characteristic frequen-cies in the machinery.This function is effective in creating a frequency reference dead band.During constant-speed operation, operation within the jump frequency range is prohibited. Smooth operationstill used during acceleration and deceleration, i.e., jumps are not performed.Related Constants* 1. When C6-01=0, the upper limit is 150.0.* 2. When C6-01=1, the upper limit is 400.0.The relationship between the output frequency and the jump frequency reference is as follows:Fig 6.31 Jump FrequencyCon-stantNumberName Description SettingRangeFactorySettingChangeduringOpera-tionControl Methods MEMOBUSRegis-terV/fV/fwithPGOpenLoopVec-torFluxVec-tord3-01 Jump fre-quency 1Set the center values of the jumpfrequencies in Hz.This function is disabled by set-ting the jump frequency to 0 Hz.Always ensure that the follow-ing applies:d3-01 ≥ d3-02 ≥ d3-03Operation in the jump frequencyrange is prohibited but duringacceleration and deceleration,speed changes smoothly withoutjump.0.0 to400.0 *10.0 Hz No A A A A 294Hd3-02 Jump fre-quency 2 0.0 Hz No A A A A 295H0.0 to300.0 *2d3-03 Jump fre-quency 3 0.0 Hz No A A A A 296Hd3-04 Jump fre-quency widthSets the jump frequency band-width in Hz.The jump frequency will be thejump frequency ± d3-04.0.0 to20.0 1.0 Hz No A A A A 297HOutput frequencyJump frequency referenceJumpfrequencywidth d3-04Jumpfrequency3 (d3-03)Jumpfrequency2 (d3-02)Jumpfrequency1 (d3-01)Frequency reference descendingFrequencyreferenceascendingJumpfrequencywidth d3-04Jump frequency width d3-04
