Toshiba Q9 Plus ASD, Installation & Operation Manual

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E6581611
M-2
13
(Continued)
Error code Failure code Problem Possible causes Remedies

The deceleration time  is too short.
(Regenerative energy is too large.)

Increase the deceleration time  .

Overvoltage limit operation  is set
to
1
. (Disabled).

Set overvoltage limit operation  to
0
,
2
,
3
.

000B Overvoltage during
deceleration

The input voltage fluctuates abnormally.
(1) The power supply has a capacity of
500kVA or more.
(2) A power factor improvement capacitor is
opened and closed.
(3) A system using a thyristor is connected
to the same power distribution line.

Insert a suitable input reactor.
 The input voltage fluctuates abnormally.
(1) The power supply has a capacity of
500kVA or more.
(2) A power factor improvement capacitor is
opened or closed.
(3) A system using a thyrister is connected
to the same power distribution line.
 Insert a suitable input reactor.

000C Overvoltage during
constant-speed
operation

The motor is in a regenerative state
because the load causes the motor to run
at a frequency higher than the inverter
output frequency.

Install an optional dynamic braking
resistor. (optional)

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).

000D Inverter overload

The load is too large.

Use an inverter with a larger rating.

The V/F setting is improper.

Check the V/F parameter setting.

The motor is locked up.

Check the load (operated machine).

000E Motor overload
 Low-speed operation is performed
continuously.

An excessive load is applied to the motor
during operation.
 Adjust

to the overload that the
motor can withstand during operation in a
low speed range.

003E Main module
overload

The carrier frequency is high and load
current has increased at low speeds
(mainly at 15Hz or less).

Raise the operation frequency.

Reduce the load.

Reduce the carrier frequency.

When an operating motor is started up at
0Hz, use the auto-restart function.

Set carrier frequency control mode
selection
f316
to
1
(carrier frequency
with automatic reduction).

000F Dynamic braking
resistor overload trip

The deceleration time is too short.
 Dynamic braking is too large.

Increase the deceleration time

.
 Increase the capacity of dynamic braking
resistor (wattage) and adjust PBR
capacity parameter

.
*

0020 Over-torque trip 1 
Over-torque reaches to a detection level
during operation.

Enable  (over-torque trip selection).

Check system error.

0041 Over-torque trip 2 
Output current reached
f601
or more
and maintain in f452 during power
running.

Power running torque reached f441 or
more and maintain in f452 during
power running.

Reduce the load.
 Increase the stall prevention level or
power running torque limit level.
* This marking trips can be selected valid or invalid by parameters.
(Continued overleaf)