User Manual of EM760 High-Performance Inverter As the load increases, the rotor speed of the motor will increase. To make the rotor speed close to the synchronous speed under the rated load, slip compensation can be enabled. When the motor speed is less than the target value, the set value ofF06.08 can be increased. For the speed sensorless vector control, this parameter can be used to adjust the speed accuracy of the motor. Increase this parameter if the motor speed is low under load, and viceversa. Vector control is used to set the operating conditions of the torque limit.
If the output torque of the inverter is greater than the set upper limit, the torque limit function will be enabled, thus controlling the output torque not to exceed the upper limit of speed control torque. F06.09=0: depending on F06.10 and F06.11 The upper limit of electric torque is F06.10, and that ofbraking torque is F06.11. F06.09=1: AI1 F06.09=2: AI2 F06.09=3: AI3 F06.09=4: AI4 The upper torque limit is dependent on AI (percentage) * F06.10/F06.11. For the detailed interpretation of AI1 to AI4,refer to 6.5.7. 100.00% is the percentage to the set value ofF06.10/F06.11. F06.09=5: communication setting The upper torque limit depends on the communication.
● Ifthe master-slave communication (F10.05=1) is enabled and the inverter works as the slave (F10.06=0), the upper torque limit is “700FH (master-slave communication setting) * 250.0% * F10.08 (slave receiving proportional coefficient)”, and the 700FH data range is -100.00% to 100.00%. 207 Function code Function codename Parameter description Unit Default setting Attribute F06.08 Vector control slip gain 50.00~200.00 % 100.00 ● Function code Function codename Parameter description Unit Default setting Attribute F06.09 Upper limit source selection of speed control torque 0: set by F06.10 and F06.11 1: AI1 2: AI2 3: AI3 4: AI4 (expansion card) 5: Communication setting (percentage) 6:
Take the maximum values of AI2 and AI3 7: Take the minimum values of AI2 and AI3 0 O F06.10 Upper limit of speed control motor torque 0.0~250.0 % 165.0 ● F06.11 Upper limit of speed control brake torque 0.0~250.0 % 165.0 ●