Toshiba VF-FS1 Manual torque boost increasing torque boost at low speeds, XD Torque boost

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5.11Manual torque boost - increasing torque boost at low speeds

XD : Torque boost 1

•Function

If torque is inadequate at low speeds, increase torque by raising the torque boost rate with this parameter.

Base frequency voltage

XNX

5 XD

Output voltage [V]/(%)

Base frequency		Output frequency (Hz)
	XN

[Parameter setting]

Title	Function	Adjustment range	Default setting
XD	Torque boost 1	0.0 - 30.0 (%)	According to model
			(⇒ See page K-14)

+Valid when RV is set to  (V/F constant) or (square reduction)

Note: The optimum value is programmed for each inverter capacity. Be careful not to increase the torque boost rate too much because it could cause an overcurrent trip at startup.

5.12 Setting the electronic thermal

VJT : Motor electronic-thermal protection level 1

QNO : Electronic thermal protection characteristic selection

H : Motor electronic-thermal protection level 2

H : Motor 150%-overload time limit

H : Thermal memory selection

•Function

This parameter allows selection of the appropriate electronic thermal protection characteristics according to the particular rating and characteristics of the motor.

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