GE AF-300 P11 User Manual

Contents

5-17F42 Torque vector control 1F 4 2 T R Q V E C T O R 1To obtain the most efficient motor torque, the torquevector control calculates torque according to load, toadjust the voltage and current vectors to optimum valuesbased on the calculated value.Value Operation0 inactive1 activeRelated Functions P01 to P09If F42 = 1 (active), the following functions are affected:1. F09 Torque boost 1 is automatically set to 0.0(automatic torque boosting).2. P09 Slip compensation control is automaticallyactivated. If set to 0.0, the amount of slip compensa-tion for a standard 3-phase Fuji motor is applied.Otherwise, the set value is applied.Use the torque vector control function under the followingconditions:1. There can only be one motor.Connection of two or more motors makes accuratecontrol difficult.2. The function data (rated current P03, no-load currentP06,, %R1 P07, and %X P08) for Motor 1 must becorrect.If a standard 3-phase GE motor is used, setting thecapacity (Function P02) ensures entry of the abovedata. An auto-tuning operation should be performedfor other motors.3. The rated current of the motor must not be signifi-cantly less than the rated current of the drive. Amotor two sizes lower in capacity than the nominalmotor indicated for the drive is the smallest thatshould be used.4. To prevent leakage current and ensure accuratecontrol,, the length of the cable between the drive andmotor should not exceed 50 m.5. If a reactor is connected between the drive and themotor and wiring impedance cannot be disregarded,use P04 Auto tuning to reset data.If these conditions are not satisfied, set F42 = 0 (Inactive).