Toshiba Tosvert VF-AS1 Instruction Manual page 322

(Continued)
Error
code

 EEPROM error
 Initial read error
 Initial read error •Some internal data is corrupted.


*

*



 CPU fault

 Gate array fault •Main gate array is defective.


 Tuning error

13

*Presence or absence of parameter trip can be selected.
(Continued overleaf)
Description Possible causes
•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.
•Some internal data is corrupted.
•Power was turned off while 
was being set.
•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
•The control CPU is defective.
Interruption of • A normal communication was not
operation possible for the time or longer set
by .
command from
external control
device
Output current •The main output current detector
detector error is 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.
•The motor connected is not a
three-phase inductive motor.
•Tuning is performed while the
motor is running.
• 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
Tuning
three-phase inductive motor.
detection 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.
• 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
Motor constant smaller than the inverter capacity.
value error •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.
•Reset the inverter.
•Turn off the inverter, then turn it again. If it does
not recover from the error, contact your Toshiba
distributor.
•Contact your Toshiba distributor.
•Set  again. If the inverter does not recover
from the error, contact your Toshiba distributor.
•Contact your Toshiba distributor.
•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.
•Contact your Toshiba distributor.
•Contact your Toshiba distributor.
•Contact your Toshiba distributor.
•Check the remote control device, cables, etc.
•Contact your Toshiba distributor.
•Contact your Toshiba distributor.
•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 the motor is at standstill.
•Perform auto-tuning 1 again and if the error
persists, perform tuning manually.
M-4
E6581442
Remedies