(Continued)
0047
[Alarm information]
Each message in the table is displayed to give a warning but does not cause the inverter to trip.
Error code
Problem
ST (assigned
standby function)
terminal OFF
Undervoltage in main
circuit
Retry in process
Frequency point
setting error alarm
Clear command
acceptable
Emergency stop
command acceptable
Setting error alarm /
/
An error code and
data are displayed
alternately twice
each.
Display of first/last
/
data items
DC braking
Flowing out of
excess number of
digits
Momentary power
failure deceleration
stop prohibition
function activated.
Auto-stop because of
continuous operation
at the lower-limit
frequency
Parameters in the
process of
initialization
Points setting alarm 1 In case of pt=7, there are same setting
Points setting alarm 2 In case of pt=7, the inclination of V/f is
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).
Auto-tuning error
When auto-tuning (relating parameters
(PM motor)
are pt=6, f400=2), the current of
the permanent magnet motor exceeded
the threshold level.
The inductance of permanent magnet
motor is too small.
Possible causes
The ST-CC (or P24) circuit is opened.
The supply voltage between R, S and T is
under voltage.
Internal communication fault.
The inverter is in process of retry.
A momentary stop occurred.
The motor speed is being detected.
The frequency setting signals at points 1
and 2 are set too close to each other.
This message is displayed when pressing
the STOP key while an error code is
displayed.
The operation panel is used to stop the
operation in automatic control or remote
control mode.
An error is found in a setting when data is
reading or writing.
The first and last data item in the
data group is displayed.
DC braking in process
The number of digits such as frequencies
is more than 4.
(The upper digits have a priority.)
The slowdown stop prohibition function
set with (momentary power
failure ride-through operation) is
activated.
The automatic stop function selected with
was activated.
Parameters are being initialized to default
values.
value at least two on parameter vl,
f190, f192, f194, f196, or
f198 except 0.0Hz.
too high.
Auto tuning for permanent magnet motor
Initial position (f915=3, 4) is not
Select f915=0 when SPM motor is
Close the ST-CC (or P24) circuit.
Measure the main circuit supply voltage.
If the voltage is at a normal level, the inverter
requires repairing for fault.
The inverter restarts automatically. Be careful
of the machine because it may suddenly
restart.
Set the frequency setting signals at points 1
and 2 apart from each other.
Press the STOP key again to clear the trip.
Press the STOP key for an emergency stop.
To cancel the emergency stop, press any
other key.
Check whether the setting is made correctly.
Press MODE key to exit the data group.
The message goes off in several tens of
seconds if no problem occurs.
Lower the frequency free unit magnification
.
To restart operation, reset the inverter or input
an operation signal again.
This function is cancelled, when frequency
reference reaches LL+0.2Hz or operation
command is OFF.
Normal if the message disappears after a
while (several seconds to several tens of
seconds).
Set the points to different values.
Set the inclination of V/f to be flat.
M-5
E6581926
is not allowed for this motor, please
measure inductance with the LCR meter
etc.
estimated. Select other control modes
(f915=0,1,2)
used.
Remedies
Note 1)
(Continued overleaf)
13