Toshiba TOSVERT VF-AS1 Instruction Manual page 306

(Continued)
Error
Description
code
•Inverter is stopped by panel
operation during automatic or
remote operation.
Emergency stop

•A stop command (input terminal
function:  or ) is issued by
an external control device.
•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
 tuning smaller than the inverter capacity.

error
•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.
*Presence or absence of parameter trip can be selected.
(Continued overleaf)
Possible causes
•Reset the inverter.
•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 6.42.
•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.
M-3
E6581445
Remedies
13