VF-FS1 Industrial Inverter - Toshiba

13
M-4
E6581381
[Alarm information] Each message in the table is displayed to give a warning but does not cause the inverter to
trip.
Error code Problem Possible causes Remedies
ST terminal OFF • The ST-CC circuit is opened. • Close the ST-CC circuit.
Undervoltage in main • The supply voltage between R, S and T is • Measure the main circuit supply voltage.
circuit
under voltage.
If the voltage is at a normal level, the
inverter requires repairing.
Retry in process • The inverter is n the process of retry. • The inverter is normal if it restarts after
• A momentary stop occurred.
several tens of senconds.
The inverter restarts automatically. Be
careful of the machine because it may
suddenly restart.
Frequency point • The frequency setting signals at points 1 • Set the frequency setting signals at points
setting error alarm and 2 are set too close to each other. 1 and 2 apart from each other.
Clear command • This message is displayed when pressing • Press the STOP key again to clear the
acceptable
the STOP key while an error code is
displayed.
trip.
Emergency stop • The operation panel is used to stop the • Press the STOP key for an emergency
command acceptable operation in automatic control or remote stop.
control mode.
To cancel the emergency stop, press any
other key.
/
Setting error alarm /
An error code and
data are displayed
alternately twice
each.
• An error is found in a setting when data is
reading or writing.
• Check whether the setting is made
correctly.
/
Display of first/last
data items
• The first and last data item in the
data group is displayed.
• Press MODE key to exit the data group.
DC braking • DC braking in process • The message goes off in several tens of
seconds if no problem occurs. Note)
Shaft fixing control • Motor shaft fixing control is in process. • Normal if the message disappears when
a stop command is entered (or the
operation command is canceled).
Flowing out of • The number of digits such as frequencies • Lower the fequency free unit
excess number of is more than 4.
magnification .
digits
(The upper digits have a priority.)
Instantaneous power • The coast stop function set with • To restart operation, reset the inverter or
failure coast stop (Instantaneous power failure coast stop) input an operation signal again.
function activated. is activated.
Auto-stop because of • The automatic stop function selected with • To deactivate the automatic stop function,
continuous operation was activated.
increase the frequency command above
at the lower-limit
the lower-limit frequency (LL) + 0.2 Hz or
frequency
turn off the operation command.
Parameters in the • Parameters are being initialized to default • Normal if the message disappears after a
process of
values.
while (several seconds to several tens of
initialization
seconds).
Operation panel key • The RUN or STOP key is held down for • Check the operation panel.
fault
more than 20 seconds.
• The RUN or STOP key is faulty.
Auto-tuning • Auto-tuning in process • Normal if it the message disappears after
a few seconds.
Break in analog • The signal input via VIA is below the • Check the cables for breaks. And check
signal cable
analog sinal detection level set with the setting of input signal or setting value
and setteing value of is
one or more.
of and .
k Integral input power • Integral input power is more than • Press and hold down the ENT key for 3
999.99kWh.
seconds or more when power is off or
when the input terminal function CKWH
is turned on or displayed.
Integral output power • Integral output power is more than • Press and hold down the ENT key for 3
999.99kWh.
seconds or more when power is off or
when the input terminal function CKWH
is turned on or displayed.