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Greater accuracy with less time and effort by converting from mechanical to electronic position switches



Replace existing mechanical limit switches limiting the end position of moving plant components on a large open-cast mining machine. This is intended to eliminate the following problems:

  • Imprecise switching points due to play and hysteresis 
  • High maintenance, installation and start-up times with standstill and disruption to the value creation chain
  • Mandatory inspections requiring a lot of time and effort
  • High costs for backup devices and maintenance
  • Lack of approval for safety functions in line with current standards and directives

Huebner Solution

Electronic position switch ERC 40 enclosed in rugged casing for use in extreme ambient conditions. The new solution offers customers the following benefits:

  • Greater switching accuracy when approaching end position limits
  • Less time lost to maintenance and downtimes 
  • User-friendly calibration via preset input
  • Save and import parameter data sets
  • Additional real-time position data (4-20 mA output)
  • Reduced type variety and costs for backup devices
  • Integrated status monitoring (temperature, speed, voltage, system limits and so on) with active signal output for time-saving identification in the event of a fault condition