Toshiba TOSVERT VF-AS3 Instruction Manual page 599

Trip Failure
Trip name
display code
UP1 001E Undervoltage
(Power
circuit) *
Ut 003C Undertorque * The load torque reached the undertorque
UtC3 0049 Undertorque/
Undercurrent
*
*Enable/Disable can be selected for trip with a parameter.
■ Alarm information
Alarm
English
display
A-09 Panel disconnection
alarm
A-17 Key failure alarm
A-18 Analog input
disconnection alarm
A-43 Communication
alarm
(embedded Ethernet)
COFF Control power
option alarm
MOFF Undervoltage alarm The input voltage (power circuit) declined.
Detection factor
The input voltage (power circuit) declined. • Check the input voltage.
level during run.
Undertorque or undercurrent on the shock
monitoring function was detected.
Detection factor
The cable connecting the inverter and panel
are disconnected during run with a run
command from the operation panel and
extension panel.
• [RUN] or [STOP/RESET] key on the operation
panel is pressed and hold for 20 seconds or
more.
• The operation panel key has failed.
The input level of the terminal [II] became the
setting value or less of <F633: II analog input
disconnection detection level> .
Condition very close to the communication
time out trip.
1) Undervoltage on the control power supply
input between [+SU] and [CC].
2) The setting of <F647: Control power option
failure detection> is improper.
13-9
E6582062
Measures
• Check that the undervoltage detection set-
ting is correct.
<F625: Undervoltage detection level>,
<F627: Undervoltage trip>, etc.
• To avoid trip in momentary power failure,
set <F627> = "0: Disabled", and set
<F301: Auto-restart> and <F302: Regen-
erative power ride-through level> to "1".
• Check the load side.
• Check that the undertorque detection set-
ting is correct.
<F651: Undertorque trip>,
<F652: Undertorque detection level during
power running>,
<F653: Undertorque detection level during
regen>,
<F654: Undertorque detection time>, etc.
• 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>
Measures
Check the connection on the inverter and
panel.
Check the operation panel. If the failure
occurs again, contact your Toshiba
distributor.
• Check that the signal line connected to the
terminal [II] is not disconnected.
• Check that the <F633> setting is correct.
Perform the same measures with
communication time out "E-43".
1) Check the voltage on the control power
supply input between [+SU] and [CC]. 20
Vdc or more is required.
2) When the control power supply option is
not used, set <F647> = "0".
*When [COFF] occurs, turn the power OFF
once, and reset.
Check the input voltage. If no problem is
found, internal error may be the issue.
Contact your Toshiba distributor.
13. Trip information and measures
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II
III
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