Toshiba TOSVERT VF-AS1 Instruction Manual page 314

(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
*1 Output phase
output line of the main circuit.

failure
*1 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

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.

Tuning error •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.
*1:Presence or absence of parameter trip can be selected.
*2: It is only for VFAS1-6110KP and above.
(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 the motor is at standstill.
•Perform auto-tuning 1 again and if the error
persists, perform tuning manually.
M-3
E6581528
Remedies
13