The ABB 2TLA020052R1000 — also known as Vital 1 — is a compact safety controller / safety relay module. It is designed to monitor safety devices (such as light‑curtains, safety switches/interlocks, emergency‑stop devices, safety gates/doors, etc.) using a single‑channel dynamic (“DYNlink”) safety circuit, and to provide safety‑rated relay outputs when the safety chain is closed. The module simplifies safety wiring by allowing up to ~30 compatible dynamic sensors in series, reducing the number of safety relays needed. It supports manual or automatic supervised reset, offers LED diagnostics (supply, sensor status, output status), and provides two safety relay outputs plus an auxiliary information output. The unit is DIN‑rail mountable and enclosed in a 22.5 mm‑wide compact housing — making it suitable for machine safety and control‑cabinet installations.
