H0NEYWELL 05701-A-0502 Rack
Introduction
System 57 is a fire and or gas control system offering great flexibility through its modular
construction. The system is constructed in a rack that can be fitted with fire and/or gas
control cards and corresponding interface cards that allow connection of the associated
detectors. The rack can be panel or cabinet mounted. Further details of the main
components are given below. A graphical overview of all the available components and how
they can be assembled into a system is shown in section X. For further detailed information
refer to the individual operating manuals 05701-M-5001 (5701 gas control card), 05704-M
5001 (5704 gas control card) and 05704-M-5002 (fire control card).
3.1 Gas Control Cards
The System 57 gas control cards provide display and alarm facilities for the full range of
Sieger gas detectors. Their back lit, multi-part LCD displays the gas reading and status in
both analogue bar graph and digital numeric forms. In addition, there is an alpha numeric
message section to give detector (and engineering function) status.
There is a choice of either the single channel 5701 or the four channel 5704 gas control
cards. Each card has two input options; one is for catalytic bridge type while the other is for 4
to 20mA detectors or transmitters. The control cards feature 3 levels of alarm, options of
individual, zoned, voted, master, time delayed, update and rate of rise alarm facilities, 4 part
LCD display, peak reading facility and detector performance monitoring.
3.2 Fire Control Cards
The 5704F fire control cards provide display and alarm facilities for a wide variety of fire
detection products and provide up to four fire zone inputs compatible with most flame,
smoke and heat detectors and manual call points. The status of each fire zone is individually
displayed by high intensity LEDs. In addition, each card has two line monitored alarm output
circuits. Both fire and gas control cards can be freely mixed in a rack. Up to 60 fire zones
can be monitored per 19″ rack.
Each rack that contains a 5704F fire card has one 5704FS fire status panel fitted. The
5704FS fire status panel provides common display and alarm indication for all of the fire
cards in a rack as well as a local audible sounder. It also provides common push buttons for
executing specific fire card related functions.
3.3 Master Alarm Update Panel
The master alarm update facility can be enhanced by adding the optional master alarm
update panel which enables update facilities without the need for external wiring. The alarm
update panel is 1″ wide and provides audible and visual alarms and a reset and accept push
button.
3.4 Power Supply Units
The power supply units are rack mounted to match the main control card rack design. The
units are 1U high, and available in 19″ & ½ 19″ sizes. Total maximum power capability is
200W (built in 50W blocks). The input voltage is auto sensing (AC or DC) and the output is
regulated DC with over voltage and overload protection.
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System 57 Quick Start Guide
05701-M-5026 MAN0839 Issue 1
3.5 Engineering Card
The System 57 engineering card provides full maintenance and set up facilities for each
channel card. The front panel has a series of tactile feedback push buttons that allows
checks of the alarm levels and performance to be carried out for each channel. A real-time
‘on board’ clock provides calibration history and calibration overdue reminder functions. An
access key provides security protection.
The engineering card can be fitted with optional modules for extended system options.
3.5.1 Serial Communications Module
The serial communications module provides a gateway between the System 57 rack and a
remote device (DCS, PLC or SCADA package) to allow the continuous monitoring of each
channel’s operation and condition as well as allowing remote configuration of the system
operation. The module uses the industry standard MODBUS RTU protocol, RS485/422/232
standard. Custom designed SCADA graphics packages are also available.
3.5.2 RS232 Printer Driver Module
The printer driver module provides a serial output in the event of a gas alarm, fault or user
intervention. The output is RS232 ASCII event data, has selectable print criteria, provides
time and date stamping and is electrically isolated.
3.5.3 Master Alarm Update Module
The alarm update module provides a common alarm indication with new alarm event update.
It also provides 2 Outputs: 1 relay, 1 Darlington, with selectable operation: pulsed or
continuous and an alarm and common alarm reset input. It complies with ISA ‘M’, DIN 19
235. It can be used with the optional master alarm update panel.
3.6 Interface Cards
There are 9 versions of interface card available (5 for 5701 Gas, 2 for 5704 Gas and 2 for
5704 Fire Control Cards). The interface cards provide the link between the various fire or
gas detectors and the control cards. They provide detector interface, offer flexib