Toshiba VF-PS1 Instruction Manual page 295

(Continued)
Error
Description
code
•A data writing error occurs.
 EEPROM error
•Some internal data is corrupted.
 Initial read error
•Power was turned off while 
was being set.
 Initial read error •Some internal data is corrupted.
 •A current leaked from an output
Ground fault
 cable or the motor to ground.
•A phase failure occurred in the
* Output phase
output line of the main circuit.
failure

* Input phase •A phase failure occurred in the
 failure input line of the main circuit.
Main unit RAM •The control RAM is defective.

fault
Main unit ROM •The control ROM is defective.

fault
 CPU fault •The control CPU is defective.
•A normal communication was not
Communication
 possible for the time or longer set
time-out error
by .
 Gate array fault •Main gate array is defective.
Output current •The main output current detector is

detector error defective.
•An optional device has failed.
Optional unit
 (such as a communication device
fault
[add-on option])
•The capacity of the motor
connected is 2 notches or more
smaller than the inverter capacity.
Tuning error •The motor connected is not a

three-phase inductive motor.
•Tuning is performed while the
motor is running.
•Tuning 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 capacity.
•The motor connected is not a
 tuning
 three-phase inductive motor.
error
•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.
•Tuning required to leak inductance
as specified with  cannot
be performed.
•Tuning 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 capacity.
 tuning
•The motor connected is not a

error
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.
Some items indicated on the motor
nameplate are not entered correctly.
•Base frequency 
Motor constant
•Base frequency voltage 1 

setting error
•Motor rated capacity 
•Motor rated current 
•Motor rated speed 
*Presence or absence of parameter trip can be selected.
(Continued overleaf)
Possible causes
•Turn off the inverter, then turn it again. If it does not
recover from the error, make a service call.
•Make a service call.
•Set  again. If the inverter does not recover
from the error, make a service call.
•Make a service call.
•Check the cable and the motor for ground faults.
•Check the main circuit output line, motor, etc. for
phase failure.
•Select output phase failure detection parameter .
•Check the main circuit input line for phase failure.
•Make a service call.
•Make a service call.
•Make a service call.
•Check the remote control device, cables, etc.
•Make a service call.
•Make a service call.
•Check the connection of optional board(s).
•Refer to instructions of options concerned specified
in Section 6.36.
•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.
•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.
•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.
•Make sure that all items on the motor nameplate
are entered correctly.
M-3
E6581386
Remedies
13