Toshiba VF-FS1 instruction manual Set the auto-tuning parameter H to  Auto-tuning enabled, Xnx

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[Selection 1: Setting vector control and auto-tuning independently]

This method sets energy-saving,sensorless vector control, automatic torque boost, and auto-tuning independently.

Specify the control mode selection parameter (RV) and then set auto-tuning.

Set the auto-tuning parameter H to  (Auto-tuning enabled)

[Parameter setting]

Title	Function	Adjustment range		Default setting
		0: Auto-tuning disabled (use of internal parameters)
H	Auto-tuning	1: Application of individual settings of	H (after	0
		execution: 0)
		2: Auto-tuning enabled (after execution: 0)

(1) At least, set the following parameters, as specified on the nameplate of the motor.

	Title	Function	Adjustment range
	XN	Base frequency 1	25.0-200.0 (Hz)
			50-330 (V) : 200V class
6	XNX	Base frequency voltage 1
			50-660 (V) : 400V class
	H	Motor rated current	0.1-200.0 (A)
	H	Motor rated speed	100-15000 (min-1)

(2)Set H to  to before the start of operation. Tuning is performed at the start of the motor.

+Precautions on auto-tuning

(1)Conduct auto-tuning only after the motor has been connected and operation completely stopped. If auto-tuning is conducted immediately after operation stops, the presence of a residual voltage may result in abnormal tuning.

(2)Voltage is applied to the motor during tuning even though it barely rotates. During tuning, “CVP” is displayed on the operation panel.

(3)Tuning is performed when the motor starts for the first time after H is set to .

Tuning is usually completed within three seconds. If it is aborted, the motor will trip with the dis- play of GVP and no constants will be set for that motor.

(4)High-speed motors, high-slip motors or other special motors cannot be auto-tuned. For these motors, perform manual tuning using Selection 2 described below.

(5)The resulting insufficient motor torque during tuning could create a risk of machine stalling/falling.

(6)If auto-tuning is impossible or an "GVP" auto-tuning error is displayed, perform manual tuning with Selection 2.

(7)If the inverter is tripped during auto-tuning because of an output phase failure (GRJQ), check if the inverter is connected to the correctly. A check for output phase failures is made during auto- tuning, regardless of the setting of the output phase failure detection mode selection parameter (H).

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