No. Parameter Name Setting Range DefaultC3-02 Slip Compensation Primary Delay Time 0 to 10000 ms 2000 msu C4: Torque CompensationThe torque compensation function compensates for insufficient torque production at start-up or when a load is applied.Note: Before making changes to the torque compensation gain make sure the motor parameters and V/f pattern are set properly.n C4-01: Torque Compensation GainSets the gain for the torque compensation function.No. Parameter Name Setting Range DefaultC4-01 Torque Compensation Gain 0.00 to 2.50 1.00The drive calculates the motor primary voltage loss using the output current and the terminal resistance value (E2-05) andthen adjusts the output voltage to compensate insufficient torque at start or when load is applied. The effect of this voltagecompensation can be increased or decreased using parameter C4-01.AdjustmentAlthough this parameter rarely needs to be adjusted, small changes in increments of 0.05 may help in the following situations:• Increase this setting when using a long motor cable.• Decrease this setting when motor oscillation occurs.Adjust C4-01 so that the output current does not exceed the drive rated current.u C6: Carrier Frequencyn C6-01: Drive Duty SelectionThe drive has two different duty modes from which to select based on the load characteristics. The drive rated current, overloadcapacity, and carrier frequency will change depending upon the duty mode selection. Use parameter C6-01 to select HeavyDuty (HD) or Normal Duty (ND) for the application. Refer to Specifications on page 179 for details about the rated current.No. Parameter Name Setting Range DefaultC6-01 Drive Duty Selection 0 or 1 1Table 5.6 Differences between Heavy and Normal DutyMode Heavy Duty Rating (HD) Normal Duty Rating (ND)C6-01 0 1Characteristics100 %100 %0 Motor SpeedRated LoadOverload150 %Motor Speed0100 %100 %120 %Rated LoadOverloadApplication Use Heavy Duty Rating for applications requiring a highoverload tolerance with constant load torque. Suchapplications include extruders and conveyors.Use Normal Duty Rating for applications in which the torquerequirements drop along with the speed. Examples includefans or pumps where a high overload tolerance is not required.Over load capability (oL2) 150% of drive rated Heavy Duty current for 60 s 120% of drive rated Normal Duty current for 60 sL3-02 Stall Preventionduring Acceleration 150% 120%L3-06 Stall Preventionduring Run 150% 120%Default Carrier Frequency 8/10 kHz 2 kHz Swing PWMNote: By changing the Duty Mode the drive maximum applicable motor power changes and the E2-ooparameters are automatically set toappropriate values.5.3 C: TuningYASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual 875 Parameter Detailshttp://nicontrols.com
