The 20181 has two grounding points: a functional ground (FE) and a protective earth (PE).
| Terminal | Function | Wiring Example | | :--- | :--- | :--- | | | Start/Enable input | Connect to +24V via a dry contact (e.g., push button) | | Y2 | Feedback/sensor input | Connect NPN sensor output (0V when active) | | COM | Common for inputs | Link to A2 (0V) if using NPN, or A1 (+24V) if using PNP | stakis technik 20181 install work