Specifications99.2 Heavy Duty and Normal Duty RatingsYASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual 3639.2 Heavy Duty and Normal Duty RatingsThe ratings for this product are based on two types of load ratings depending on the load characteristics of anapplication: Heavy Duty Rating (HD) and Normal Duty Rating (ND).Refer to the following table for more information on the differences between a Heavy Duty Rating and a NormalDuty Rating.Duty Rating C6-01Setting Application Default CarrierFrequencyOverload Tolerance(oL2)Heavy Duty Rating 1(HD1) 0• Extruder• Conveyor• Crane or hoist• Applications that require constanttorque or high overload capacity2 kHz 150% of the rated outputcurrent for 60 sNormal Duty Rating 1(ND1) 1• Fan• Pump• Blower• Applications that require variablespeed control2 kHz Swing-PWM 110% of the rated outputcurrent for 60 s
