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E6581528
M-3
13
(Continued)
Error
code
Description Possible causes Remedies
Emergency stop
•Inverter is stopped by panel
operation during automatic or
remote operation.
•A stop command (input terminal
function: or ) is issued by
an external control device.
•Reset the inverter.
EEPROM error
•A data writing error occurs. •Turn off the inverter, then turn it again. If it does
not recover from the error, make a service call.
Initial read error
•Some internal data is corrupted.
•Power was turned off while
was being set.
•Make a service call.
•Set again. If the inverter does not recover
from the error, make a service call.
Initial read error •Some internal data is corrupted. •Make a service call.
Ground fault
•A current leaked from an output
cable or the motor to ground.
•Check the cable and the motor for ground faults.
*1
Output phase
failure
•A phase failure occurred in the
output line of the main circuit.
•Check the main circuit output line, motor, etc. for
phase failure.
•
Select output phase failure detection parameter
.
*1
Input phase
failure
•A phase failure occurred in the
input line of the main circuit.
•Check the main circuit input line for phase failure.
Main unit RAM
fault
•The control RAM is defective. •Make a service call.
Main unit ROM
fault
•The control ROM is defective. •Make a service call.
CPU fault •The control CPU is defective. •Make a service call.
Communication
time-out error
• A normal communication was not
possible for the time or longer set
by .
•Check the remote control device, cables, etc.
Gate array fault •Main gate array is defective. •Make a service call.
Output current
detector error
•The main output current detector
is defective.
•Make a service call.
Optional unit
fault
•An optional device has failed.
(such as a communication device
[add-on option])
•Check the connection of optional board(s).
•Refer to instructions of options concerned
specified in Section 6.42.
Tuning error
•The capacity of the motor
connected is 2 notches or more
smaller than the inverter capacity.
•The motor connected is not a
three-phase inductive motor.
•Tuning is performed while the
motor is running.
•Make sure that a motor is connected.
•Make sure that the motor is at standstill.
•Perform auto-tuning 1 again and if the error
persists, perform tuning manually.
Tuning
detection error
• Some of ,(*2),
and (*2) were not
to be detected during auto tuning.
•The capacity of the motor
connected is 2 notches or more
smaller than the inverter capacity.
•The motor connected is not a
three-phase inductive motor.
•Tuning is performed while no
motor is connected.
•The cables connecting the inverter
to the motor are too long; they are
more than 30m in length.
•Tuning is performed while the
motor is running.
•Make sure that a motor is connected.
•Make sure that the motor is at standstill.
•Perform auto-tuning 1 again and if the error
persists, perform tuning manually.
Motor constant
value error
• Some detection values of
,(*2), and
(*2) were beyond the limits
of normal value.
•The capacity of the motor
connected is 2 notches or more
smaller than the inverter capacity.
•The motor connected is not a
three-phase inductive motor.
•The cables connecting the inverter
to the motor are too long; they are
more than 30m in length.
•Tuning is performed while the
motor is running.
•Make sure that the motor is at standstill.
•Perform auto-tuning 1 again and if the error
persists, perform tuning manually.
*1:Presence or absence of parameter trip can be selected.
*2: It is only for VFAS1-6110KP and above.
(Continued overleaf)