Toshiba TOSVERT VF-S11 Instruction Manual page 132

The likely causes of tripping and the corresponding retry processes are listed below.
Cause of tripping
Momentary power
failure
Overcurrent
Overvoltage
Overload
Overheating
The retry function is disabled in the following unusual events:
•
•
•
•
•
•
•
•
•
•
6
•
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 the function 36 or 37 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 (
until the voltage in the DC section comes down to a normal level.
In the event of tripping caused by overheating (
temperature in the inverter comes down low enough for it to restart operation.
Keep in mind that when
regardless of the setting of
During retrying, the blinking display will alternate between
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
: Arm overcurrent at start-up
: Overcurrent on the load side at start-up
: Output phase failure
: External thermal trip
: Overtorque trip
: External trip stop
: Small-current operation trip
: Undervoltage trip (main circuit)
: Ground fault trip
: Input phase failure
: Inverter type error
is set to
.
F-38
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.
•
: Main unit RAM fault
•
: Main unit ROM fault
•
: CPU fault trip
•
: Remote control error
•
: Current detector fault
•
: Control circuit board format error
•
: EEPROM fault 1
•
: EEPROM fault 2
•
: EEPROM fault 3
•
: Auto-tuning error
•
: VIA input detection error
•
: Main unit CPU communication error
•
: Excessive torque boost
•
: CPU fault 2
.
, ,
- ), the retry function will not be activated
), the retry function will not be activated until the
(trip retained), the retry function will not be performed,
and the monitor display specified by
.
E6581158
Canceling conditions
).