2TLA020052R1000 - 

Vital Safety Controller, Base Unit
The Vital safety device from ABB is the heart of a new solution which makes it possible to installl/connect many different types of safety device in the same safety circuit and still achieve safety category 4 in accordance with EN 954-1/EN ISO 13849-1. The Vital module is based upon a dynamic single-channel concept as opposed to conventional dual-channel safety relays. ABB have designed this unit to accommodate up to 30 dynamic sensors within the safety circuit which can be supervised by one Vital module. The Vital unit can therefore replace several safety relays. Safety components with output contacts can be connected to the Vital via low cost Tina adaptors. The Vital also has automatically or manually supervised reset selection, dual safety outputs, and an information output for reset indication and status information for PLC's.