Our website uses functional cookies. When remaining on this site, you are explicitly agreeing to the use of those cookies.

Improved operating reliability and position accuracy at the ladle crane

 

Task

Objective: fundamentally improve the operating reliability and positioning accuracy of the ladle crane hoisting gear used in steel production by implementing the following measures:

 

  • Replace legacy mechanical rotary cam limit switch with an electronic position switch that ensures significantly greater accuracy
  • Also, attach an electronic overspeed switch to facilitate overspeed detection as well as a holding break (not included in scope of supply of Hübner Giessen)

 

 

 

 

Huebner Solution

Installed the modular universal encoder system U-ONE,which offers the following special characteristics:

 

  • Basic unit attached directly at the hoist drum by means of adouble joint coupling on a tailor-made base plate construction
  • Signal transmission via fiber optic cable prevents EMCproblems
  • The following electronic modules were installed, well-protected in the switchboard:
  • FOC decoder
  • Electronic position switch (ERC) with 6 relay outputs and preset input to facilitate plant adjustments
  • Electronic overspeed switch (EGS) with 2 relay outputs and integrated system check function