ANDELI AJR3-1400 Instruction Manual - Page 13

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12. Starting mode

12-5 Voltage and current-limit double closed loop starting

When PB is 5 (Double closed loop), it is the double closed starting mode. This mode adopts

voltage ramp and current-limit double closed loop to control, it is a comprehensive starting

mode that requires stable starting and strict current-limit, and it adopts the pre-calculating

method that evaluates the working state of motor.

The output voltage waveform of this kind of starting mode will be different according to the

motor and loading condition.

12-6 Soft stop

AJR3-1000

series soft starter has two stop modes that is soft stop mode and free stop mode.

When 2 is not 0, it is soft stop mode. Refer to diagram 12-6-1 for output current waveform of

soft stop mod. TF is soft stop time set by F2. Under this stop mode, the power supply of motor

can be got through bypass contactor switching into thyristor output of soft starter, the output

voltage of the soft starter will be reduced gradually from full voltage, in this way, it reduces

the rotary speed gradually without causing the vibration till the motor stops. The output cut-

off voltage of soft stop is equal to the starting voltage.

Soft stop mode can reduce or eliminate the load surge like water pump. Under soft stop mode,

you can set soft stop current-limit value by FL to reduce the heavy current impact when redu-

cing soft stop, this soft stop current-limit value is a percent that is calculated on the basis of

starting current-limit.

Diagram 12-6-1

12-7 Free stop

Set 2 at 0 (free stop), it is free stop mode.

Under this stop mode, as soon as the soft starter receiving the stop order, it will switch off the

bypass contactor immediately and forbid the voltage output from thyristor, and the motor will

stop gradually as the load inertia. When the wiring method of the soft starter is in n-in-one, then

you'd better set it into this mode to avoid loss-of phase fault report during output switching.

Usually, you should choose the free stop mode if it is not necessary to choose the soft stop. Free

stop will prolong the service life of soft starter. The free stop mode completely forbids instan-

taneous output, it avoids instantaneous heavy current impact in special application condition.

ANDLI AJR3- 1000

soft starter has six different starting modes, it is suitable for various

complex motors and different bad conditions, and the users can choose according to their

application ranges.

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13. Outline size

13-1

AJR3- 1

005 to

AJR3-1

055

Face

Side

13-2

AJR3-1

075

Face

Accessory

Base

of base

Side

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