Altistart 22 Enclosed Altistart 22 Soft Starters Page 5 Introduction

5 Altistart 22 soft starters for asynchronous motors Introduction Applications (continued) Typical application areas Examples of functions performed by the Altistart 22 depending on the application. Type of machine Functions performed by the Altistart 22 Centrifugal pump Controlled slowing-down and stopping Protection against underload or reversal of phase rotation direction Piston pump Control of pump priming and the pump's direction of rotation Fan Detection of overloads and underloads Braking torque on stopping Turbine Thermal monitoring of motor via electrically isolated PTC probe Refrigeration compressor Control of starting characteristics Screw compressor Protection against reversal of phase rotation direction Centrifugal compressor Protection against reversal of phase rotation direction Conveyor Monitoring of overloads for incident detection or underloads for break detection Conveyor belt Second set of motor parameters depending on the load transported Lifting screw Monitoring of overloads for hard spot detection or underloads for break detection Agitator Displaying the current indicates the density of the material. Mixer Displaying the current indicates the density of the material. Boost on start-up Refiner Torque control on starting and stopping Dedicated applications The ATS 22 can be used for applications outside the standard characteristics, but this could involve derating to at least the next lowest level. Examples of applications outside the standard characteristics: Greater number of starts Motor thermal protection higher than class 10 Excess current required at time of start Certain ambient temperatures: For ambient temperatures between 104 F (40 C) and 140 F (60 C), derate the nominal current of the Altistart by 2.2% for each additional degree. Certain altitudes: For altitudes between 3,300 ft (1000 m) and 6,600 ft (2000 m), derate the nominal current of the Altistart 22 by 2% for each additional 330 ft (100 m).

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