Toshiba VFNC3-2001P Instruction Manual

E6581595E-2154) Use a general purpose squirrel-cage motor with a capacity that is the same as the inverter's rated capacity orone rank below.The minimum applicable motor capacity is 0.05kW.5) Use a motor that has 2-8 P.6) Always operate the motor in single operation (one inverter to one motor). Sensorless vector controlcannot be used when one inverter is operated with more than one motor.When using a combination of several motors, set the V/F constant (=).7) The maximum length of wires between the inverter and motor is 30 meters. If the wires are longer than 30meters, set standard auto-tuning with the wires connected to improve low-speed torque during sensorlessvector control.However the effects of voltage drop cause motor-generated torque in the vicinity of rated frequency to besomewhat lower.8) When a reactor is connected between the inverter and a motor, the motor's generated torque may fall.Setting auto-tuning may also cause a trip () rendering sensorless vector control unusable.5.12 Manual torque boost - increasing torque boost at lowspeeds : Torque boost 1• FunctionIf torque is inadequate at low speeds, increase torque by raising the torque boost rate with thisparameter.Output voltage[V]/(%)Base frequency voltageOutput frequency (Hz)Base frequency [Parameters]Title Function Adjustment range Default setting Torque boost 1 0.0 - 30.0 (%) According to model(See 11.4)+ Valid when  is set to 0 (V/F constant) or 1 (square reduction)Note 1: The optimum value is programmed for each inverter capacity. Be careful not to increase the torque boostrate too much because it could cause an overcurrent trip at startup.efesotomasyon.com -Toshiba inverter,drive,servo,plc