312 Parameters96.16 Unit selection Selects the unit of parameters indicating power, temperatureand torque.0000b0000h…FFFFh Unit selection word. 1 = 196.51 Clear fault andevent loggerClears all events from the drive’s fault and event logs. 00…1 0 = No effect; 1 = Clears the logger. 1 = 19797 Motor control Switching frequency; slip gain; voltage reserve; flux braking;anti-cogging (signal injection); IR compensation.97.01 Switchingfrequency referenceDefines the switching frequency of the drive that is used aslong as the drive does not heat too much. See sectionSwitching frequency on page 108.Higher switching frequency results in lower acoustic noise.In multimotor systems, do not change the switching frequencyfrom the default value.4 kHz4 kHz 4 kHz. 48 kHz 8 kHz. 812 kHz 12 kHz. 1297.02 Minimum switchingfrequencyLowest switching frequency that is allowed. Depends on theframe size.2 kHz1.5 kHz 1.5 kHz. 1.52 kHz 2 kHz. 24 kHz 4 kHz. 48 kHz 8 kHz. 812 kHz 12 kHz. 1297.03 Slip gain Defines the slip gain which is used to improve the estimatedmotor slip. 100% means full slip gain; 0% means no slip gain.The default value is 100%. Other values can be used if astatic speed error is detected despite having the setting at fullslip gain.Example (with nominal load and nominal slip of 40 rpm): A1000 rpm constant speed reference is given to the drive.Despite having full slip gain (= 100%), a manual tachometermeasurement from the motor axis gives a speed value of 998rpm. The static speed error is 1000 rpm - 998 rpm = 2 rpm. Tocompensate the error, the slip gain should be increased to105% (2 rpm / 40 rpm = 5%).100%0…200% Slip gain. 1 = 1%No. Name/Value Description Def/FbEq16Bit Name Information0 Power unit 0 = kW1 = hp1 Reserved2 Temperatureunit0 = °C1 = °F3 Reserved4 Torque unit 0 = Nm (N·m)1 = lbft (lb·ft)5…15 Reserved
