Soft starters of the line S801+ are for standard asynchronous motors. The Power-Range depends on the kind of connection, starting at 18.5 kW to 560 kW at 400 V (standard connection) and 30 kW to 900 kW at 400 V connected zin-deltaz. THere, each phase of the soft starter is in line with each winding of the motor (requires 6 wires to the motor, motor only in delta).
The line S801+ is programmed with DIP-swtiches to adapt to an application.
Alternative to the DIP-switches changes can be done via communication link. There the same possibillities are offered as with the DIP-switches on board. Standard is a Modbus interface, other network interfaces will follow.
Typical applications for a soft starter
Pumps – reduce water-hammer with a special pump control algorythm. Mechanical stress of the system goes down and reliablillity rises
fans – caused by the soft start belts will not slip, aging of the system reduces. Therefore costs of ownership goes down, live-time of the application rises
conveyor belts – instead of a mechincal shock the belts starts softly. Goods on the belt will not fall down, the belt itself will run longer, live-time goes up
compressors – caused by the soft start belts will not slip, aging of the system reduces. Therefore costs of ownership goes down, live-time of the application rises
saws, mixers, mills and crushers – caused by the current limit function current peaks can be avoided. This reduces energy costs for peak load
