Turn on the 24V DC supply. The "PWR" LED should illuminate green.
A: The official Xtra Safe website offers PDF downloads. Search "Xtra Safe Support Portal" and enter model "KT82001" to get the multi-language zip file. Xtra Safe Kt 82001 Manual
| LED Status | Error Description | Manual Solution (Page 22-24) | | :--- | :--- | :--- | | | Overvoltage (>30V DC) | Reduce voltage immediately. Unit may be damaged. | | "In 1" flashing red | Channel 1 stuck closed | Replace the E-stop button or safety switch. | | "In 2" off, "In 1" on | Mismatched input timing | Inputs must change state within 0.5 seconds of each other. Check wiring symmetry. | | "Out" flashing yellow | Feedback loop broken | Check the auxiliary contacts on your external contactors. | | All LEDs cycle | Internal watchdog fault | Cycle power. If persists, replace the unit (internal CPU error). | Turn on the 24V DC supply
Ensure the contactor (the machine's main switch) is healthy. The feedback LED should flash once. Search "Xtra Safe Support Portal" and enter model
Press the reset button for 1 second. You will hear an audible "Click" – this is the internal relays energizing. The "Out" LED turns green.
A: Yes. The manual certifies the KT 82001 up to SIL CL 3 per IEC 61508 and PL e (Category 4) per ISO 13849-1.