Section VII Test runing and application
23
7-1-1. If the motor starter status is not satisfactory, refer to 7.2 of the soft starter
starting mode and application to select appropriate starting model.
7-1-2. If the motor starting torque is not enough, you can change the starting voltage
(voltage mode) or current-limiting value (current mode), to improve the motor
starting torque.
7-1-3. When soft starter power on, do not open the cover, to avoid electric shock.
7-1-4. In the power test of running, if appearing unusual phenomena, such as
abnormal noise, smoke or odor, etc., should be quickly cut off the power and
make further investigation.
7-1-5. If power on or when starting, appearing failure light and display ErrXX, you
can find the reason according to the displayed fault code and the
corresponding chapter of the cause.Press the stop button or external stop
button to reset the fault status.
Note：
⑴ When the ambient temperature is below -10 ℃, should power on for more
than 30 minutes to warm-up before starting.
⑵ When the soft starter drive the motor successfully, the operation status
indicator on the middle panel lights, that proves the bypass is in running status.
If at this time, the motor stop by bypass contactor without actuation,y ou
should check the bypass contactor and associated wiring connection.
7-2. PR5200(C) Series soft starter starting mode and application
PR5200(C) series soft starter has Seven models to suit a variety of complex starter
motor and load conditions, the user can choose it as different application.
7-2-1 Current limit starting mode
When setting PB to 0, set the start mode for this
mode.
Chart 7.1 shows the current limit mode of the
motor starting current waveform changes. I1 is
starting current limit by setting, when the motor
starts, the output voltage rapidly increases, till the
motor current reaches the current limit value I1, and
maintain the motor current is not higher than this
value, then gradually as the output voltage increased,
gradually accelerate the motor, when the motor
reaches the rated speed, the bypass contactor make actuation, output current rapidly
dropped to or below the motor rated current Ie, starting process is complete.
When the motor is lightly loaded or setting the current limit highly, the
maximum starting current may not reach the set limit value is normal.
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