Invensys Triconex 3636T Relay Output Module

Invensys Triconex 3636T Relay Output Module

Functional Description

The Model 3636T Relay Output (RO) Modules are non-triplicated modules for use on non-critical points

which are not compatible with "high-side" solid-state output switches. An example is interfacing with

annunciator panels. The Relay Output module receives output signals from the Main Processors on each of

three channels. The three sets of signals are then voted, and the voted data is used to drive the 32 individual

relays.

Each output has a loopback circuit which verifies the operation of each relay switch independently of the

presence of a load, while ongoing diagnostics test the operational status of the module. Failure of any

diagnostic activates the Fault indicator, which in turn activates the chassis alarm.

The Relay Output module comes with normally open (NO) contacts. It supports hot-spare modules and

requires a separate external termination panel (ETP) with a cable interface to the Tricon backplane.

Technical Specifications