No. (Hex.) Name Description Default (Range) C4-01 (0215) RUN Torque Compensation Gain Sets the gain for the torque compensation function. Use this parameter value for motor 1 when operating multiple motors. Determined by A1-02 (0.00 - 2.50) Adjust the setting in these control methods and conditions: A1-02 [Control Method Selection] Status Adjustment 0 [V/f Control] 1 [V/f Control with Encoder] 8 [EZ Vector Control] Torque is not sufficient during low-speed operation of 10 Hz or less. Increase the setting in 0.05-unit increments. There is vibration in the motor when operating the drive with a light load. Decrease the setting in 0.05-unit decrements. The cable between the drive and motor is too long. Increase the setting in 0.05-unit increments. Note: Adjust C4-01 to make sure that the output current is not more than the drive rated current during low-speed operation. When A1-02 = 2 [Open Loop Vector], usually it is not necessary to change this setting. If you change this parameter in that control method, it can decrease the torque precision. When A1-02 = 5 [PM Open Loop Vector], usually it is not necessary to change this setting. Setting this value too high can cause overcompensation and motor oscillation. When A1-02 = 8 [EZ Vector Control], you cannot change the setting while the drive is running.