Critical Environment Technologies FCS - Introduction; General Description; Key Features

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FCS - Installation Manual Rev. C | 2021.12

2 INTRODUCTION

2.1 General Description

NOTE: The FCS Installation Manual outlines the basic features and functionality of the FCS

and includes information about installing and wiring the system. If you require more in

depth information about how the FCS can be congured (channels, relays, strobe/audible

and analog input and output settings), using passcodes, logic and priority settings and the

Modbus® holding registers, please download the FCS Operation Manual from our website.

Thank you for purchasing our FSC Flexible Control System. The FCS Flexible Control System

is a sophisticated, high performance controller that offers multi-channel congurations for

monitoring toxic, combustible and refrigerant gases with versatile control functionality for

non-hazardous, non-explosion rated, commercial and light industrial applications. The FCS is

designed to accept inputs from digital and/or analog transmitters and/or Peripheral Devices

(in various combinations), using Modbus® RTU RS-485 or 4-20 mA analog input.

The FCS is available in 4 channel, 8 channel, 32 channel and 128 channel models with

either Modbus® RTU RS-485 WAN output or with BACnet® MS/TP RS-485 WAN output for

communicating with a Building Automation System (BAS).

All models include, four congurable SPDT dry contact relays with eld congurable time

delays and trigger levels, a full colour LCD resistive touch screen with LED panel indicating

congurable channel alarm status, relay status and fault conditions, extensive menu system

with password protection, enhanced logic control, priorities/zoning capabilities, a USB port

for rmware upgrades, data logging and a door-mounted, audible alarm. The FCS has exible

conguration settings for analog outputs and supports 4-20 mA and Modbus® driven VFDs.

2.2 Key Features

• A 1/4 VGA full colour, resistive touch LCD display with an LED panel for alarm status

fault conditions

• Extensive menu system with password protection

• Has a USB port for in the eld rmware upgrades and data logging downloads

• Congured with either a Modbus® RTU RS-485 or a BACnet® MS/TP RS-485 digital

output signal for WAN communications (for communicating with a BAS)

• Supports Modbus® driven VFDs

• Flexible conguration of analog outputs

• Enhanced logic control, zoning and priority structure capabilities

• With the optional Analog Output board(s) (Option -AO or -2AO) installed, the FCS can

be congured to have up to 8 internal 4-20 mA outputs* for VFD control or usable by

any other device requiring a signal representing the levels of gases detected

• With the optional Analog Input board(s) (Option -AI or -2AI) installed, the FCS can be

congured to have up to 8 internal analog inputs*

• A door mounted, loud audible alarm that is ideal for noisy environments.

• Four 5-amp SPDT dry contact relays with eld congurable time delays and trigger

levels