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Altistart 48 soft start/soft stop units Applications

The Altistart 48 soft start/soft stop unit is a controller with 6 thyristors used for torque-controlled soft starting and
stopping of three-phase squirrel cage asynchronous motors, for power ratings between 4 and 900 kW.
It offers soft starting and deceleration functions along with machine and motor protection functions, as well as
functions for communicating with control systems.
These functions are designed for use in the most common applications for centrifugal machines, pumps, fans,
compressors and conveyors, which are primarily to be found in the construction, food and beverage and chemical
industries. The high-performance algorithms of the Altistart 48 contribute significantly to its ruggedness, safety and
ease of setup.
The Altistart 48 soft start/soft stop unit is a cost-effective solution which can:
bb reduce machine operating costs by reducing mechanical stress and improving machine availability,
bb reduce the stress on the electrical distribution system by reducing line current peaks and voltage drops during
motor starts.
bb The Altistart 48 soft start/soft stop unit offer comprises 2 ranges:
vv three-phase voltages 230 V to 415 V, 50/60 Hz,
vv three-phase voltages 208 V to 690 V, 50/60 Hz.
In each voltage range, the Altistart 48 soft start/soft stop units are sized for standard and severe applications.ATS48
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