Toshiba VFNC3-2001P Instruction Manual page 132

efesotomasyon.com -Toshiba inverter,drive,servo,plc
The likely causes of tripping and the corresponding retry processes are listed below.
Cause of tripping
Momentary power
failure
Overcurrent
Overvoltage
Overload
Overheating
Retry is only done when the following trips occur.
 ,  ,  ,  ,  ,  ,  ,  ,  , 
Protective operation detection relay signals (FLA, FLB, FLC terminal signals) are not sent during use of
the retry function. (Default setting)
To allow a signal to be sent to the protective action detection relay (FLA, B and C terminals) even during
the retry process, assign function numbers  or  to  .
A virtual cooling time is provided for overload tripping (  ,  ).
In this case, the retry function operates after the virtual cooling time and retry time.
In the event of tripping caused by an overvoltage (  -  ), the retry function will not be activated
until the voltage in the DC section comes down to a normal level.
In the event of tripping caused by overheating (  ), the retry function will not be activated until the
6
temperature in the inverter comes down low enough for it to restart operation.
During retrying, the blinking display will alternate between  and the monitor display specified by
status monitor display mode selection parameter  .
The number of retries will be cleared if the inverter is not tripped for the specified period of time after a
successful retry.
"A successful retry" means that the inverter output frequency reaches the command frequency without
causing the inverter to re-trip.
Retry process
Up to 10 times in succession
1st retry: About 1 sec after tripping
2nd retry: About 2 sec after tripping
3rd retry: About 3 sec after tripping
10th retry: About 10 sec after tripping
F-28
Canceling conditions
The retry function will be canceled at
once if tripping is caused by an unusual
event other than: momentary power
failure, overcurrent, overvoltage or
overload.
This function will also be canceled if
retrying is not successful within the
specified number of times.
E6581595