PLC frequency-converting speed-governing control system for eliminating the swing of gantry crane goods
A technology of gantry cranes and control systems, applied in the direction of load hanging components, transportation and packaging, etc., which can solve the problems of increasing system complexity, reducing system response speed, increasing system complexity and maintenance workload, etc.
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[0065] exist Figure 5 Mode of operation of the middle hoisting mechanism. The operator presses the operation console 1, sends out the speed given signal 23 for lifting the goods to the hoisting mechanism, and sends out control signals to the hoisting mechanism frequency converters 9 and 22 through the operation of the PLC 8, so that the hoisting mechanism motors 14 and 16 drive the lifting mechanism. The lift mechanism 15 lifts the cargo. When the target position is reached, the operator presses the operation console 1, and sends a given signal 23 for reducing the speed of the goods to the hoisting mechanism. The motors 14 and 16 rotate in the reverse direction, driving the hoisting mechanism 15 to lower the cargo, and at the same time, the hoisting mechanism brakes 13 and 17 start to brake, and finally the cargo is placed at the target position.
[0066] The operation mode of the trolley mechanism. The operator presses the operation console 1, and sends a speed given sign...
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