Toshiba VF-FS1 instruction manual Detection of output short-circuit

						E6581381
Title		Function	Adjustment range		Default setting
H	Small current detection current hysteresis		1-20 (%)		10
H	Small current trip/alarm selection		0: Alarm only		0
			1: Tripping
H	Small current detection current		0-100 (%) / (A)		0
H	Small current detection time		0-255 [s]		0
＜Example of operation＞
Output terminal function: 24 (UC) Low current detection
H =  (Alarm only)				ON
Low current			OFF		OFF
signal output

	Output current (%)	H or less	H
6	H+H
	H
			Time [sec]

*When setting H to  (Trip), trip after low current detection time setting of H. After tripping, the low current signal remains ON.

6.17.8 Detection of output short-circuit

H : Detection of output short-circuit during start-up

•Function

This parameter detects inverter output short-circuit. It can be usually detected in the length of the standard pulse. When operating low-impedance motor such as high-speed motor, however, the short- time pulse should be selected.

H=: Detection is executed in the length of the standard pulse every time you start up the inverter.

H=: Detection is executed in the length of standard pulse only during the first start-up after putting on the power or after resetting.

H=: Detection is executed with the short-time pulse every time you start up the inverter.

H=: Detection is executed with the short-time pulse only for the first time after putting power on or after resetting.

F-60