Toshiba VF-S15 Instruction Manual page 349

(Continued)
 0047
[Alarm information]
Error code






/

/










Note 1) When the DC braking (DB) function is assigned by using the input terminal function 22 or 23,
it is normal if "" disappears when opening the circuit between the terminal and CC (or P24).
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 When auto-tuning (relating parameters
Auto-tuning error
(PM motor)
 The inductance of permanent magnet
Each message in the table is displayed to give a warning but does not cause the inverter to trip.
Problem
 The ST-CC (or P24) circuit is opened.
ST (assigned
standby function)
terminal OFF
 The supply voltage between R, S and T is
Undervoltage in main
circuit
under voltage.
 Internal communication fault.
 The inverter is in process of retry.
Retry in process
 A momentary stop occurred.
The motor speed is being detected.
 The frequency setting signals at points 1
Frequency point
setting error alarm and 2 are set too close to each other.
 This message is displayed when pressing
Clear command
acceptable
the STOP key while an error code is
displayed.
 The operation panel is used to stop the
Emergency stop
command acceptable
operation in automatic control or remote
control mode.
 An error is found in a setting when data is
Setting error alarm /
An error code and
reading or writing.
data are displayed
alternately twice
each.
 The first and last data item in the 
Display of first/last
data items
data group is displayed.
 DC braking in process
DC braking
 The number of digits such as frequencies
Flowing out of
excess number of
is more than 4.
digits
(The upper digits have a priority.)
 The slowdown stop prohibition function
Momentary power
set with  (momentary power
failure deceleration
stop prohibition
failure ride-through operation) is
function activated.
activated.
 The automatic stop function selected with
Auto-stop because of
 was activated.
continuous operation
at the lower-limit
frequency
 Parameters are being initialized to default
Parameters in the
process of
values.
initialization
Points setting alarm 1  In case of pt=7, there are same setting
value at least two on parameter vl,
f190, f192, f194, f196, or
f198 except 0.0Hz.
Points setting alarm 2  In case of pt=7, the inclination of V/f is
too high.
are pt=6, f400=2), the current of
the permanent magnet motor exceeded
the threshold level.
motor is too small.
Possible causes
 Close the ST-CC (or P24) circuit.
 Measure the main circuit supply voltage.
 The inverter restarts automatically. Be careful
 Set the frequency setting signals at points 1
 Press the STOP key again to clear the trip.
 Press the STOP key for an emergency stop.
 Check whether the setting is made correctly.
 Press MODE key to exit the data group.
 The message goes off in several tens of
 Lower the frequency free unit magnification
 To restart operation, reset the inverter or input
 This function is cancelled, when frequency
 Normal if the message disappears after a
 Set the points to different values.
 Set the inclination of V/f to be flat.
M-5
 Auto tuning for permanent magnet motor
is not allowed for this motor, please
measure inductance with the LCR meter
etc.
Remedies
If the voltage is at a normal level, the inverter
requires repairing for fault.
of the machine because it may suddenly
restart.
and 2 apart from each other.
To cancel the emergency stop, press any
other key.
seconds if no problem occurs. Note 1)
.
an operation signal again.
reference reaches LL+0.2Hz or operation
command is OFF.
while (several seconds to several tens of
seconds).
(Continued overleaf)
E6581611
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