Toshiba TOSVERT VF-FS1 Instruction Manual page 151

[Display during operation of the stall prevention]
During an  alarm status, (that is , when there is a current flow in excess of the stall prevention level),
the output frequency changes. At the same time, to the left of this value, "" is displayed flashing on
and off.
Example of display
 
The switching from  to  can be performed by entering a command through terminals.
⇒ For more details, see section 6.4.1.
Note: The 100% standard value is the rated output current indicated on the nameplate.
6.17.3 Inverter trip retention
 : Inverter trip retention selection
• Function
If the inverter trips, this parameter will retain the corresponding trip information. Trip information that
has thus been stored into memory can be displayed, even after power has been reset.
[Parameter setting]
Title
Inverter trip retention selection

The causes of up to four trips that occurred in the past can be displayed in status monitor mode.
Data displayed in status monitor mode when the inverter is tripped is cleared when power is turned off.
Past trip records can be displayed.
Trip records are retained even if power is turned off and turned back on during retry operation.
■ Flow of operation when =
Occurrence of a
trip
Function
Reset the
Completion of reset
inverter by
panel or
terminal
operation.
If the cause of the
trip is not
Turn power off,
eliminated
then turn it back
on to reset the
inverter.
If the cause of the
trip is eliminated
F-59
Adjustment range
0: Canceled with the power off
1: Still retained with the power off
Normal operation
The relay trips again.
・ Display of the cause
・ Failure signal FL
activated
Trip state is retained
・Display of the cause
・ Failure signal FL not
activated
E6581381
6
Default setting
0