Toshiba VF-FS1 instruction manual Setting value Overload protection Overload stall

E6581381

■Setting of electronic thermal protection characteristics selection QNO

Setting value	Overload protection	Overload stall
	{	⋅
	{	{
	⋅	⋅
	⋅	{
		{ : valid, ⋅ : invalid

■Setting of motor electronic thermal protection level 1 VJT (Same as H)

If the capacity of the motor is smaller than the capacity of the inverter, or the rated current of the motor is smaller than the rated current of the inverter, adjust the electronic thermal protection level 1 VJT so that it fits the motor's rated current.

Output current reduction factor [%]/[A]

VJT×1.0

5

VJT×0.55

0

	30Hz	Output frequency (Hz)
Note:	The motor overload protection start level is fixed at 30Hz.

[Example of setting: When the VFFS1-2007PM is running with a 0.4kW motor having 2A rated current]

Key operated	LED display			Operation
		Displays the operation frequency. (Perform during operation
		stopped.)
		(When standard monitor display selection H is set to 
		[Operation frequency])
MODE	CWH	The first basic parameter “CWH” (Wizard function) is displayed.
	VJT	Press either the		key or the	key to change the parameter to
		VJT.
ENT		Press the ENT key to display the parameter setting. (Standard
		default setting: 100%)
		Press the	key to change the parameter to %
		(=motor rated current/inverter output rated current x
		100=2.0//4.8×100).
ENT	¶⇔¶VJT	Press the ENT key to save the changed parameter. VJT and the
		parameter are displayed alternately.

Note: The rated output current of the inverter should be calculated from the rated current, regardless of the setting of the PWM carrier frequency parameter (H).

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