Toshiba TOSVERT VF-AS3 Instruction Manual page 577

Trip Failure
Trip name
display code
OP2 000B Overvoltage
(during decel-
eration)
OP3 000C Overvoltage
(during con-
stant speed
running)
Ot 0020 Overtorque *
Ot2 0041 Overtorque 2
OtC3 0048 Overtorque/
Overcurrent *
PrF 003B STO circuit
fault
SOUT 002F PM step-out * 1) The load changed rapidly.
*Enable/Disable can be selected for trip with a parameter.
Detection factor
1) The deceleration time is short and the
regenerative energy is large.
2) <F305: Overvoltage limit operation> is
set to "1: Disabled".
3) Input voltage is high and showed
abnormal fluctuation.
4) Connection is made as the following
system.
• Power supply capacity is 500 kVA or
more.
• The power factor improvement
capacitor was opened/closed.
• Equipment is connected that uses
thyristor on the same system.
1) Input voltage is high and showed
abnormal fluctuation.
2) Connection is made as the following
system.
• Power supply capacity is 500 kVA or
more.
• The power factor improvement
capacitor was opened/closed.
• Equipment is connected that uses
thyristor on the same system.
3) The motor was rotated with the force on
the load side, and it became to
regenerative status.
The load torque reached the overtorque
level during run.
1) The output current during power
running reached <F601: Stall
prevention level 1> or more, and the
setting time in <F452: Stall detection
time during power running> elapsed.
2) The power running torque during power
running reached <F441: Power running
torque limit level 1> or more, and the
setting time in <F452: Stall detection
time during power running> elapsed.
Overtorque or overcurrent on the shock
monitoring function was detected.
Fault in the safe torque off (STO) circuit.
2) Sudden acceleration/deceleration
occurs.
3) The motor shaft is locked up.
4) Output side phase has failed.
13-7
E6582062
Measures
1)
• Increase the deceleration time. <dEC:
Deceleration time 1>, etc.
• When the regenerative energy is large,
install a braking resistor.
2) Change <F305> = "0", "2", and "3" to
enable the Overvoltage limit operation.
When the deceleration time is limited,
install a braking resistor (option).
3) Use within the power supply voltage
range. When no problem is found in the
input voltage, install an input AC
reactor (option).
4) Install an input AC reactor (option).
1) Use within the power supply voltage
range. When no problem is found in the
input voltage, install an input AC
reactor (option).
2) Install an input AC reactor (option).
3) Install a braking resistor (option).
• Check the load side.
• Check the overtorque detection setting is
correct.
<F615: Overtorque trip>,
<F616: Overtorque detection level during
power running>,
<F617: Overtorque detection level during
regen>,
<F618: Overtorque detection time>, etc.
• Reduce the load.
• Lower the detection level of <F601> or
<F441>.
• Check the load.
• When no problem is found, check if the
shock monitoring function setting is
correct.
<F590: Shock monitoring> to <F598:
Shock monitoring detection condition>
Fault in internal inverter.
Contact your Toshiba distributor.
1) and 2) Increase the acceleration/
deceleration time. <ACC: Acceleration
time1>, <dEC: Deceleration time 1>,
etc.
3) Check the motor and release the lock.
4) Check the wiring on the output side.
13. Trip information and measures
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