Notes Switch travel diagram
  Contact closed
  Contact open
  Setting range
  Break point
  Positive opening sequence/- angle
VS  adjustable range of NO contact
  adjustable range of NC contact
N   after travel
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Input expander

AES-E range input expander are suitable for the protection of machines and plants with up to four guard devices in combination with an AES guard door monitor.

It is possible to monitor more than four guard devices by connecting a number of input expander in tandem. AES-E range input expander can be used to evaluate switching signals from position switches, safety switches, solenoid interlocks or magnetic safety sensors.