E6582233
L-2
12
(Continued)
Error code
Failure
code
Problem Possible
causes
Remedies
ERR7
001A
Current detector fault
The current detector is defective.
Contact your
Toshiba
distributor.
ETN
ETN1
ETN2
0028
0054
0055
Auto-tuning error
The
motor
parameter
,
,
,
,
are not set
correctly.
Set the left column parameters correctly
as a motor name plate and make an auto-
tuning again.
ETN3 0056
The motor with the capacity of 2 classes
or less than the inverter is used.
The output cable is too thin.
The inverter is used for loads other than
those of three-phase induction motors.
Set the left column parameters correctly
as a motor name plate and make an auto-
tuning again.
Then
set
f400
=
1
, when trip occurs.
The motor is rotating.
Make an auto-tuning again after the
rotation of the motor stops.
ETYP 0029
Inverter
type
error
It may be a breakdown failure.
Contact your
Toshiba
distributor.
OC1 0001
Overcurrent during
acceleration
The acceleration time
is too short.
Increase the acceleration time
.
The V/F setting is improper.
Check the V/F parameter.
A restart signal is imput to the rotating
motor after a momentary stop, etc.
Use
(auto-restart) and
(ride-through control).
A special motor (e.g. motor with a small
impedance) is used.
In case of
pt
=
0
,
1
, decrease
vb
.
In case of
pt
=
2
,
3
,
4
, set
f415
(Motor rated current) and make an auto-
tuning.
Ground fault trip
A ground fault occurs in the output cable
or the motor.
Check the cable and the motor for ground
faults.
OC2 0002
Overcurrent during
deceleration
The deceleration time
is too short.
Increase the deceleration time
.
Ground fault trip
A ground fault occurs in the output cable
or the motor.
Check the cable and the motor for ground
faults.
OC3 0003
Overcurrent during
constant speed
operation
The load fluctuates abruptly.
The load is in an abnormal condition.
Reduce the load fluctuation.
Check the load (operated machine).
Ground fault trip
A ground fault occurs in the output cable
or the motor.
Check the cable and the motor for ground
faults.
OCA
0005
Arm overcurrent at
start-up
A main circuit elements is defective.
Contact your
Toshiba
distributor.
OCL 0004
Overcurrent
(An
overcurrent on the
load side at start-up)
The insulation of the output main circuit
or motor is defective.
The motor has too small impedance.
Check the secondary wiring and insulation
state.
Set
f613
=
2
,
3
OH 0010
Overheat
The cooling fan is life or fault
.
The cooling fan requires replacement if it
does not rotate during operation.
Contact your Toshiba distributor.
The ambient temperature is high or low
outside a specified ambient temperature.
Operate at a specified ambient temperature.
The vent of the cooling fan is blocked up.
Secure sufficient space around the inverter.
A heat generating device is installed
close to the inverter.
Do not place any heat generating device
near the inverter.
The load is large.
Reduce the load.
Reduce
f300
: PWM carrier frequency.
Set
f316
=
1
(Carrier frequency with
automatic reduction).
The temperature sensor is fault.
(Even if it resets after much time, When
always generating)
Contact your Toshiba distributor.
OL1 000D
Inverter
overload
The acceleration time ACC is too short.
Increase the acceleration time
.
The DC braking amount is too large.
Reduce the DC braking amount
and the DC braking time
.
The V/F setting is improper.
Check the V/F parameter setting.
A restart signal is input to the rotating
motor after a momentary stop, etc.
Use
(auto-restart) and
(ride-through control).
The load is too large.
Use an inverter with a larger rating.
(Continued overleaf)