Altistart 48 Enclosed Altistart 48 Soft Starters Page 13 Functions

13 Altistart 48 soft starters for asynchronous motors Advanced Adjustment Functions Altistart 48 Default Settings Function Default setting Nominal motor current (depends on the soft starter rating) Limiting current 400% Acceleration ramp time 15 sec Initial starting torque 20% Selection of the type of stop Freewheel stop Motor thermal protection Class 10 Time before restarting 2 sec Motor phase loss threshold 10% Line frequency Automatic RUN and STOP logic inputs 2-wire or 3-wire control via wiring Logic input LI3 Forced freewheel stop Logic input LI4 Local mode control (serial link disabled) Logic output LO1 Thermal motor alarm Logic output LO2 Motor powered Relay output R1 Fault relay Relay output R3 Motor powered Analog output Motor current Functions (continued) 2 nd motor adjustment functions In order to access the 2nd motor adjustment functions, one logic input must be assigned to the second set of motor parameters function. The adjustment functions and ranges are identical for both sets of motor parameters. The settings are as follows (see page 9): Nominal motor current Limiting current Acceleration ramp time Initial starting torque Deceleration ramp time Threshold for changing to freewheel stop mode at the end of deceleration Maximum torque limit Communication functions The ATS48 soft starter is supplied with an RS-485 multidrop serial link with Modbus systems protocol as standard. The serial link is configured in the Communication menu using: The address of the soft starter (0 to 31) The communication speed (4800, 9600, or 19200 bps) The format of the communication data. The following formats can be selected: - 8 data bits, odd parity, 1 stop bit - 8 data bits, even parity, 1 stop bit - 8 data bits, no parity, 1 stop bit - 8 data bits, no parity, 2 stop bits The time-out (1 to 60 sec)

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