Toshiba VFNC3-2001P Instruction Manual

E6581595F-2966.12.4 Avoiding overvoltage tripping : Overvoltage limit operation• FunctionThese parameters are used to keep the output frequency constant or increase it to preventovervoltage tripping in case the voltage in the DC section rises during deceleration or varying speedoperation. The deceleration time during overvoltage limit operation may increase above thedesignated time.Overvoltage limit operation levelDC VoltageOutputFrequencyOver-voltage stall protection level[Parameter setting]Title Function Adjustment range Default setting Overvoltage limit operation(Slowdown stop mode selection)0: Enabled1: Disabled2: Enabled (Quickdeceleration control)3: Enabled (Dynamic quickdeceleration control)2, If  is set to 2 (quick deceleration control), the inverter will increase the voltage to the motor (over-excitation control) to increase the amount of energy consumed by the motor when the voltage reaches theovervoltage protection level, and therefore the motor can be decelerated more quickly than normaldeceleration., If  is set to 3 (dynamic quick deceleration control), the inverter will increase the voltage to themotor (over-excitation control) to increase the amount of energy consumed by the motor as soon as themotor begins to slow down, and therefore the motor can be decelerated still more quickly than quickdeceleration., During overvoltage limit operation, the overvoltage pre-alarm ( blinks) is displayed.,  is parameter for maker settings. Do not change this parameter.efesotomasyon.com -Toshiba inverter,drive,servo,plc