Encoder in the lifting industry the application of synchronous rectification control！

The particularity of gantry crane lifting equipment:
Crane hoisting equipment security requirement is more and more prominent because of the concept of safety first is more and more important in the control, according to regulations, double-track synchronous rectification control must be installed for large-span door machines over 40 meters to prevent left and right double tracks. The door wheel of the door machine is over-biased and the track is derailed. For safety reasons, the wheels of the left and right double-track of the door machine need multiple points of synchronous control. The reliable feedback of speed, position and other information directly relates to the safety and reliability of the control. The environmental specificity of the crane equipment determines the particularity of these signal sensors and transmission options:

• The complex working environment, frequency converter, large motor and high and low voltage power supply system, signal cable is often arranged together with power line, the electrical interference on site is very serious.
  
• Equipment mobility, long displacement distance, and difficulty in grounding.
  
• The signal transmission distance is far, and the safety and reliability of the signal data are high.
   
• Synchronous control requires high real-time performance and reliable signal transmission.
  
• Many are used outdoors, with high levels of protection and temperature, and low levels of worker training and high tolerance for product use.
  

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