Toshiba VF-PS1 - Page 295

E6581386
M-3
13
(Continued)
Error
code
Description Possible causes Remedies
 EEPROM erro
r
•A data writing error occurs. •Turn off the inverter, then turn it a
g
ain. If it does not
recover from the error, make a service call.
 Initial read erro
r
•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 erro
r
•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
g
round faults.
*

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  .
*

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 arra
y
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 6.36.
 Tuning error
•The capacity of the motor
connected is 2 notches or more
smaller than the inverter capacit
y
.
•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
error
•Tunin
g
required to boost torque as
specified with  cannot be
performed.
•The capacity of the motor
connected is 2 notches or more
smaller than the inverter capacit
y
.
•The motor connected is not a
three-phase inductive motor.
•Tunin
g
is performed while no moto
r
is connected.
•The cables connectin
g
the inverte
r
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.

 tuning
error
•Tunin
g
required to leak inductance
as specified with  cannot
be performed.
• Tunin
g
required to boost torque as specified
with  cannot be performed.
•The capacity of the motor
connected is 2 notches or more
smaller than the inverter capacit
y
.
•The motor connected is not a
three-phase inductive motor.
•Tunin
g
is performed while no moto
r
is connected.
•The cables connectin
g
the inverte
r
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
setting error
Some items indicated on the motor
nameplate are not entered correctl
y
.
•Base frequency 
•Base frequency voltage 1 
•Motor rated capacity 
•Motor rated current 
•Motor rated speed 
•Make sure that all items on the motor nameplate
are entered correctly.
*Presence or absence of parameter trip can be selected.
(Continued overleaf)