E6582233
L-4
12
[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
A-05 Output
frequency
upper
limit
An attempt was made to operate at a
frequency higher than 10 times the base
frequency (
or
).
Operate at a frequency within 10 times the
base frequency.
A-17
Operation panel key
alarm
The RUN or STOP key is held down for
more than 20 seconds.
The RUN or STOP key is faulty.
Check the operation panel.
A-30 Carrier
frequency
setting error alarm
The carrier frequency(
) setting is
higher than 4kHz when
= 2 or 3.
Check the parameter
and
.
ATN Auto-tuning
Auto-tuning in process
Normal if it the message disappears after a
few seconds.
CLR Clear
command
acceptable
This message is displayed when pressing
the STOP key while an error code is
displayed.
Press the STOP key again to clear the trip.
DB DC
braking
DC braking in process
The message goes off in several tens of
seconds if no problem occurs. Note)
E-49
External power supply
input
logic switching check
alarm
The input terminal was switched to sink
logic of external power supply input
(+24V).
Check the wiring, and set the appropriate
logic.
Check to make sure that the wiring is
normal, and reset or turn the power off and
then back on again. This switches the logic.
E-50 Source
logic
switching
check alarm
The input terminal was switched to source
logic.
E-51
Sink logic switching
check alarm
The input terminal was switched to sink
logic.
E1
E2
E3
Flowing out of excess
number of digits
The number of digits such as frequencies
is more than 4.
(The upper digits have a priority.)
Lower the frequency free unit magnification
.
／
EASY/
STD
Switching display of
Easy setting mode /
Standard setting mode
The EASY key was pushed in the
standard monitor mode.
When
easy
is displayed, setting mode
becomes easy setting mode. When
std
is displayed, it becomes standard setting
mode.
EOFF Emergency
stop
command acceptable
The operation panel is used to stop the
operation in automatic control or remote
control mode.
Press the STOP key for an emergency
stop.
To cancel the emergency stop, press any
other key.
ERR1
Frequency point setting
error alarm
The frequency setting signals at points 1
and 2 are set too close to each other.
Set the frequency setting signals at points 1
and 2 apart from each other.
/
HEAD/
END
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.
/
HI/
LO
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.
INIT
Parameters in the
process of initialization
Parameters are being initialized to default
values.
Normal if the message disappears after a
while (several seconds to several tens of
seconds).
LSTP
Auto-stop because of
continuous operation at
the lower-limit
frequency
The automatic stop function selected with
was activated.
This function is cancelled, when frequency
reference reaches LL+0.2Hz or operation
command is OFF.
MOFF
Undervoltage in main
circuit
The supply voltage between R, S and T is
under voltage.
Measure the main circuit supply voltage
(between the terminal PA and PC).
If the voltage is at a normal level, the
inverter requires repairing.
Note) When the ON/OFF function is selected for DC braking (DB), using the input terminal selection parameter,
you can judge the inverter to be normal if “
” disappears when opening the circuit between the terminal and CC.
(Continued overleaf)
