Pentax DSI-200 Series User Manual page 137

Over
current
FU03
during
deceleration
Over
current at
FU04
constant
speed
7.2 Faults and Diagnostics
Troubleshoot the fault according to the following table. If the fault cannot be eliminated,
contact the agent.
Customized torque boost or
V/F curve is not
appropriate.
The spinning motor is
started.
The AC drive suffers
external interference.
Ground fault or short circuit
exists in
the output circuit.
Control mode is SVC or
FVC but motor auto-tuning
is not performed.
Acceleration time is too
short.
The over current stall
prevention
parameters are set
improperly.
Braking unit and braking
resistor are
not installed.
The AC drive suffers
external
interference.
Ground fault or short circuit
exists in
the output circuit.
Control mode is SVC or
FVC but
motor auto-tuning is not
performed.

Adjust the customized torque boost
or V/F curve.

Enable the catching a spinning motor
function or start the motor
after it stops.

View historical fault records. If the
current value is far from the over
current level, find interference
source. If external interference does
not exist, it is the drive board or hall
device problem.

Check whether short-circuit occurs
on the motor, motor cable or
contactor.

Set the motor parameters according
to the motor nameplate and
perform motor auto-tuning.

Increase acceleration time.

Ensure that current limit is enabled
(p3-19 = 1)

The setting of current limit level (p3-
18) is too large. Adjust it between
120% and 150%.

The setting of the current limit gain
(p3-20) is too small. Adjust it
between 20 and 40.

Install braking unit and braking
resistor.

View historical fault records. If the
current value is far from the over
current level, find interference
source. If external interference does
not exist, it is the drive board or hall
device problem.

Check whether short-circuit occurs
on the motor, motor cable or
contactor.

Set motor parameters according to
motor nameplate and perform
motor auto-tuning.
- 137 -