Toshiba TOSVERT VF-MB1 Instruction Manual page 205

6.24.7 Control mode for small current
f609 : Small current detection hysteresis
f610 : Small current trip/alarm selection
f611 : Small current detection current
f612 : Small current detection time
 Function
If the output current falls below the value set at f611 and doesn't return above f611 + f609
for a time that exceeds the value set at f612 , tripping or output alarm will be activated.
uc is displayed in the event of a trip.
f610 = 0 : No tripping. (Failure signal FL not activated)
A small current alarm can be put out by setting the output terminal function selection parameter.
f610 = 1 : The inverter will trip if a current below the current set with f611 flows for the period of time
specified with f612 . (Failure signal FL activated)
[Parameter setting]
Title
f609 Small current detection hysteresis
Small current trip/alarm selection
f610
Small current detection current
f611
Small current detection time
f612
<Example of operation>
Output terminal function: 26 (UC) Low current detection
f610 = 0 (Alarm only)
Low current
signal output
Output current (%)
+

* When setting f610 to 1 (Trip), trip after low current detection time setting of f612 . After tripping,
the low current signal remains ON.
Function
 or less
F-85
Adjustment range
1-20 (%)
0: Alarm only
1: Tripping
0-150 (%) / (A)
0-255 (s)
ON
OFF
OFF

Time [sec]
E6581697
6
Default setting
10
0
0
0