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Electronic motor starters and drives
Connection examples, DS4
 
Reversing circuit standard connection, bidirectional rotation
 
Note:
The device of the DS4-...-M(X)R series have a built-in electronic reversing contactor function. You need to only specify the required direction of rotation. The DS4 then internally ensures the correct control sequence.

At ratings over 22 kW, a conventional reversing circuit layout must be used, because above this rating the DS4 is not available with built-in reversing contactor function. In this case make sure that direction reversal takes place only with the DS4 in stop state. Use an external controller to implement this functionality. In soft starter operation, you can use a TOR relay to control an off-delayed relay for this purpose, whereby the deceleration time must be t-Stop + 150 ms or higher.
Minimum connection of DS4-340-M(X)R
Klockner Moeller Reversing Starter
Connection of reversing soft starter without mains contactor
 

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