![Savch S200 Series Скачать руководство пользователя страница 63](http://html.mh-extra.com/html/savch/s200-series/s200-series_user-manual_1203756063.webp)
59
6.
TROUBLE SHOOTING
AC motor drive is provided with functions of warning and protection such as over voltage, low voltage and over
current. Once fault occurs, protection function shall act, AC motor drive output stop, fault contactor act and also
free running of motor shall stop. For causes and corrective measures of fault, display of fault shall be taken for
reference. Fault records shall be stored into computer memory inside AC motor drive (fault records for recent six
times shall be available), and records shall be read at digital control panel.
Attention shall be paid that, depressing RESET after fault shall only be available after fault has been eliminated.
6.1 Fault and Corrective Measures
Display
code
Descriptions of
fault
Possible cause of fault
Corrective measures
oc
AC motor drive
detects Over
current at output
side.
Overloaded
Check rated current of motor complies
with that of AC motor drive.
Check that there is no short circuit in
U/t1-V/t2-W/T3.
Check that no short circuit or grounding
occur to connection of motor.
Check that screws are securely tightened
to AC motor drive.
Increase acceleration time (01-11, 01-12).
Check there is no over load to motor.
oca
Over current
during
acceleration of
the Inverter
The acceleration time is too short.
Increase acceleration time
V/F curve is not proper.
Adjust the V/F curve setting, manual
torque increase amount, or the motor
parameter in order to ensure the
auto-torque upgrade is normal.
Momentary power failure happened
and the motor is still running when
restarted.
Restart the motor when it's totally
stopped.
The voltage of the power supply is
too low.
Check the input power supply.
Inverter output capacity is too small.
Replace with Inverter with larger output
capacity.
ocd
Over current
during
deceleration of
the Inverter
The deceleration time is too short.
Increase deceleration time.
Potential energy load or load inertia
torque is large.
Add proper dynamic braking components.
The capacity of Inverter is too small.
Replace with Inverter with larger output
capacity.
ocn
Over current
during running of
the Inverter
Load mutation.
Minish the mutation.
Acceleration/deceleration time
setting is too short.
Prolong the acceleration/deceleration
time.
Abnormal load
Check the load.
The voltage of the power supply is
Check the input power supply.