Altistart 48 Enclosed Altistart 48 Soft Starters Page 42 Enclosed Altistart 48

42 Altistart 48 soft starters for asynchronous motors Introduction Enclosed Altistart 48 Product (continued) Product features Starting and Stopping Four types of starting: - Torque control system (TCS) soft starting - adjustable from 1 to 60 seconds - TCS with boost - adjustable from 50 to 100% of main voltage - Current limit - adjustable from 150 to 500% of controller rating - Voltage ramping Three types of stopping: - Freewheel or coast to stop - TCS soft stop - adjustable from 1 to 60 seconds - InTele braking - adjustable from 50 to 100% Protection Motor thermal overload, motor phase loss and soft starter thermal protection Line supply failure, over-current fault, and locked rotor fault protection Line frequency outside limits of 5% or 20% EGSA compliance with Class 3 application (droop operation) generators Seismic qualified (floor mount configurations) to the International Code Counsel Evaluation Service (ICC ES) Protection options: - Phase reversal - Stall and jam - Thermal overload pre-alarm - Current threshold alarm - Under-load fault detection Monitoring and indication Door-mounted keypad - Displays setup parameters and fault codes for the previous five fault events - Real-time indication via the digital keypad - Motor current - Load torque - Motor thermal starter - Power factor - Detected fault status Three logic outputs - Motor thermal overload or indication of motor current present - Current threshold alarm - Motor under-load alarm 4 1 3 2 0.5 1 0 I/In N/Ns 1 2 t Is1 Altistart 48 with Torque Control System 100 80 60 40 20 0 dEC EdC % Tn t End of controlled deceleration Decelerated stop by torque control during time ( dEC ) with threshold ( EdC ) for changing to freewheel stop mode EdC = 40% of nominal motor torque TCS soft stop 100 20 0 T1 T2 brc = 20 brc = 100 t %Tn InTele braking stops for different braking torque levels ( brc ) InTele TM Braking

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