Electropneumatics, Basic Level (workbook) -

Electronic sensors are far more sensitive and compact than pneumatic limit switches.

A basic workbook emphasizes the importance of "Normal" states—specifically and Normally Closed (NC) contacts. Understanding these is vital for fail-safe design. For instance, an emergency stop button is typically wired as NC; if a wire breaks, the circuit opens, and the machine stops automatically, preventing accidents. 4. The Goal of Basic Training Electropneumatics, Basic level (Workbook)

Why combine electricity with air instead of using pure pneumatics? Electronic sensors are far more sensitive and compact