11.2 A: Initialization Parameters586 YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical ManualAdjustmentdescriptionParameter Number Solution Default Setting Suggested Setting• Improving speedaccuracyC3-01 [SlipCompensation Gain]• Increase the settingvalue if speed is slow.• Reduce the settingvalue if speed is fast.1.0 0.5 - 1.5• Increasing motorexcitation sound• Hunting and oscillationsuppression at lowspeeds (10 Hz or lower)C6-02 [Carrier FrequencySelection]• Increase the settingvalue if there is amarked motorexcitation sound.• If hunting andoscillation occur at lowspeeds, reduce thesetting value.*2 1 - F• Increasing torque andspeed response at lowspeeds• Shock suppressionduring startupE1-08 [Mid Point AVoltage]• Increase the settingvalue when torque andspeed response areslow.• Reduce the settingvalue if there is markedshock during drivestartup.11.0 V *3 12.0 V to 13.0 V *3E1-10 [Minimum OutputVoltage] 2.0 V *3 2.0 V to 3.0 V *3*1 If C4-02 [Torque Compensation Delay Time] is high, the current may increase during startup. Adjust the current during startup whilechecking it.*2 The default setting differs depending on settings for C6-01 [Normal / Heavy Duty Selection] and o2-04 [Drive Model Selection].*3 Set for 200 V class drives. Voltage is double for 400 V class drives.Closed Loop Vector Control MethodTable 11.18 Adjustment of Drive Control (Closed Loop Vector Control Method)AdjustmentdescriptionParameter Number Solution Default Setting Suggested Setting• Torque, increasingspeed response• Hunting, oscillationsuppressionC5-01 (ASR ProportionalGain 1)• Increase the settingvalue when torque andspeed response areslow.• Reduce the settingvalue when hunting andoscillation occurs.20.00 10.00 - 50.00C5-03 (ASR ProportionalGain 2)• Torque, increasingspeed response• Hunting, oscillationsuppressionC5-02 (ASR IntegralTime 1)• Reduce the settingvalue when torque andspeed response areslow.• If hunting, oscillationoccurs, increase thesetting value.0.500 s 0.300 to 1.000 secondsC5-04 (ASR IntegralTime 2)Change the ASRproportional gain andASR integral time inaccordance with theoutput frequency.C5-07 (ASR GainSwitchover Frequency)When ASR proportionalgain or integral timecannot be established forlow speed or high speed,switch in accordance withthe output frequency.0.0 Hz(Do not switch)0.0 to Maximumfrequency• Hunting, oscillationsuppression C5-06 (ASR Delay Time)• Increase the settingvalue when oscillationis likely to occur due topoor machine rigidity.0.004 s 0.004 to 0.020 secondsElevator Start/Stop and Accel/Decel Time Shock ReductionShock when starting and stopping the elevator, and when accelerating and decelerating is an issue for passengerelevator applications. Adjust the following parameters when shock affects ride quality.S-Curve Characteristics, Accel & Decel TimeAdjustment parameter NameC1-01, C1-03, C1-05, C1-07 Acceleration Time 1 to 4C1-02, C1-04, C1-06, C1-08 Deceleration Time 1 to 4C2-01 S-Curve Time @ start of Accel
