Altistart 48 Enclosed Altistart 48 Soft Starters Page 46 Enclosed Altistart 48

46 Altistart 48 soft starters for asynchronous motors Selection criteria Enclosed Altistart 48 Application types Depending on the type of machine, the applications are categorized as standard or severe duty based on the starting characteristics. Examples are given in the table below. Standard Applications Type of machine Functions performed by the ATS48 Starting current (%ln) Starting time (s) Centrifugal pump Deceleration (reduction in pressure surges) Protection against underloads or inversion of the phase rotation direction 300 5 to 15 Piston pump Control of running dry and direction of rotation of the pump 350 5 to 10 Cold compressor Protection, even for special motors 300 5 to 10 Screw compressor Protection against inversion of direction of phase rotation Contact for automatic draining on stopping 300 3 to 20 Piston compressor Protection against inversion of direction of phase rotation Contact for automatic emptying on stopping 350 5 to 10 Conveyor, transporter Overload control for detecting faults or underload control for detecting breaks 300 3 to 10 Lifting screw Overload control for detecting hard spots or underload control for detecting breaks 300 3 to 10 Drag lift Overload control for detecting jamming or underload control for detecting breaks 400 2 to 10 Lift Overload control for detecting jamming or underload control for detecting breaks Constant starting with variable load 350 5 to 10 Agitator The current display indicates the density of the product 350 5 to 20 Mixer The current display indicates the density of the product 350 5 to 10 Refiner Torque control on starting and stopping 300 5 to 30 Standard/ Severe Applications Type of machine Functions performed by the ATS48 Starting current (%ln) Starting time (s) Fan Detection of overloads caused by clogging or underloads (motor fan transmission broken) Braking torque on stopping 300 10 to 40 Centrifugal compressor Protection against inversion of direction of phase rotation Contact for automatic emptying on stopping 350 10 to 40 Circular saw, band saw Braking for fast stop 300 10 to 60 Severe Applications Type of machine Functions performed by the ATS48 Starting current (%ln) Starting time (s) Pulper, butchery knife Torque control on starting 400 3 to 10 Grinder Braking to limit vibrations during stopping, overload control to detect jamming 450 5 to 60 Crusher Braking to limit vibrations during stopping, overload control to detect jamming 400 10 to 40 Press Braking to increase the number of cycles 400 20 to 60

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