Table 1.14 Multi-Step Speed Reference and Terminal Switch CombinationsReference Multi-Step SpeedH1-oo = 3 Multi-Step Speed 2H1-oo = 4 Jog ReferenceH1-oo = 6Frequency Reference 1 (set in b1-01) OFF OFF OFFFrequency Reference 2(d1-02 or input terminal A1, A2) ON OFF OFFFrequency Reference 3(d1-03 or input terminal A1, A2) OFF ON OFFFrequency Reference 4 (d1-04) ON ON OFFJog Frequency Reference (d1-17) <1> − − ON<1> The Jog frequency overrides all other frequency references.d1-04d1-17ONONONONONMulti-step Speed Ref. 2Jog ReferenceTimeMulti-step Speed Ref. 1Frequencyreferenced1-01(A1)d1-02(A2)d1-03FWD (REV) Run/StopFigure 1.24 Preset Reference Timing Diagramu d2: Frequency Upper/Lower LimitsUpper and lower frequency limits prevent motor speed from going above or below levels that may cause resonance orequipment damage.n d2-01: Frequency Reference Upper LimitSets the maximum frequency reference as a percentage of the maximum output frequency. This limit applies to all frequencyreferences.Even if the frequency reference is set to a higher value, the drive internal frequency reference will not exceed this value.No. Parameter Name Setting Range Defaultd2-01 Frequency Reference Upper Limit 0.0 to 110.0% 100.0%n d2-02: Frequency Reference Lower LimitSets the minimum frequency reference as a percentage of the maximum output frequency. This limit applies to all frequencyreferences.If a lower reference than this value is entered, the drive will run at the limit set to d2-02. If the drive is started with a lowerreference than d2-02, it will accelerate up to d2-02.No. Parameter Name Setting Range Defaultd2-02 Frequency Reference Lower Limit 0.0 to 110.0% 0.0%1.4 d: Reference SettingsYASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual 571 Parameter Details