5SHY35L4512 ABB Voltage protection module

ASTAT® is a highly developed, well-proven system for speed controlled heavy-duty motors in cranes and

other heavy industrial machinery. Designed for even the toughest environments ASTAT brings reliable, cost

effective crane control into the computer age.

Using leading edge computer technology, ASTAT now combines advanced control features with compre

hensive information and data distribution to enhance performance at all levels.

ASTAT is made especially for high utilisation, designed with higher-grade components and larger margins

than normal industrial drives.

The motor is the torque-producing device of an ASTAT Motion Control system. The electrical power is fed

to the motor from the power bus through the DASD Thyristor Module. The DARA Control System Module

controls the voltage of the DASD Thyristor modules.

The DARA Control System Module controls the voltage and its phase sequence as well as selecting the

best speed-torque characteristic for the motor based on desired and real speed. A tachometer, a pulse en

coder or a DADT 100 Feedback Module measures the real speed. The desired speed comes from a

DAPM Cabin I/O Module. For optimisation of torque-speed characteristic an external rotor resistor and

sometimes a contactor are used. The ASTAT system is primary designed for loads that most of the time

moves at full speed. In this normal state the speed control is replaced by full motor voltage.

There are several options to the ASTAT Crane Motion Control program, below is shown a DASG line Over

voltage protection Module.

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