IRC4 601-001-001-003 Intelligent Relay Card

IRC4 601-001-001-003 Intelligent Relay Card

Functional Description

The IRC4 601-001-001-003 is an Intelligent Relay Card designed for use in the machinery protection

systems. It is an optional card, for use when complex combinations of internal discrete outputs from MPC4

and/or AMC8 cards are required.

The IRC4 is a jumperless card driven by a modern 16-bit microcontroller. This product can process complex

equations with up to 86 discrete inputs coming from all the MPC4 and AMC8 cards installed in a VM rack. Its

high level of configuration makes it ideal to manage 2oo3 (two-out-of-three) voting.

The IRC4 is installed in the rear of a ABE04x rack and connects directly to the rack backplane via a single

connector.

The IRC4 contains eight relays with change-over contacts. Each relay is associated with three terminals on a

screw terminal strip accessible at the rear of the rack.

IRC4 cards are fully software configurable using "IRC4 Configurator", a dedicated Windows® program from

Sensing Systems with a graphical user interface. No jumpers are needed, since every parameter of an IRC4 is

set using this software.

The IRC4 Configurator software uses the MPS file from the rack environment and a Microsoft® Excel®

file that describes the required logic equations (the“VM signals list”) as inputs.

Features

· 8 relays can be combined as 4 DPDT or 8 SPDT

· Each relay is controlled by a specific logic equation, which can be a combination of AND, OR, NOT or VOTE

(x between y) operators

· Each relay can be latched, with reset controlled by an external discrete signal interface (DSI) input or by a

specific logic equation

· 64x raw bus lines, 16x OC bus lines and 6x external DSI inputs can be used as terms of the equations

· Each relay can be set to NE or NDE

· Delays can be set on each relay to ensure glitchfree operation

· 4 external DSI inputs can be used as general purpose inputs for the logic equations

· External AR and DB DSI inputs act as alarm (latch) reset and danger bypass

· Fully software configurable

Technical Specifications