8 detection of output short-circuit – Toshiba VF-FS1 User Manual
Page 156

E6581381
F-60
6
Title
Function
Adjustment range
Default setting
H
Small current detection current hysteresis
1-20 (%)
10
H
Small current trip/alarm selection
0: Alarm only
1: Tripping
0
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)
Time [sec]
H H
H
Output current (%)
Low current
signal output
H
or less
H
ON
OFF
OFF
*
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.