Retry Function - Toshiba TOSVERT VF-S11 Instruction Manual

6.13.3 Retry function

: Retry selection (Selecting the number of times)
• Do not go near the motor in alarm-stop status when the retry function is selected.
The motor may suddenly restart, which could result in injury.
• Take measures for safety, e.g. attach a cover to the motor, to prevent accidents if the motor suddenly
Mandatory
restarts.
• Function
This parameter resets the inverter automatically when the inverter gives an alarm. During the retry
mode, the motor speed search function operated automatically as required and thus allows smooth
motor restarting.
[Parameter setting]
Title
Retry selection (number of
times)
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:
•
: 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
Caution
Function
0: None, 1-10 times
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-37
Adjustment range
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.
•
: 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
E6581158
Default setting
0
6