An introduction to..
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1. Kentec Electronics Ltd An introduction to a oe CS F gpa Sigma XT Overview The Sigma XT 21000 series are the latest additions to the Sigma family of control equipment from Kentec Electronics Limited The Sigma XT range combines feature rich Sigma CP conventional fire detection from two to eight zones with highly configurable extinguishing control modules to provide an integrated control solution for extinguishing systems with up to four areas The EN54 2 4 compliant fire detection section connects to the EN12094 1 compliant extinguishant control modules via a serial link which allows secure bi directional transfer of data between the two Sigma XT modules may be mounted remotely in separate enclosures and connected to Sigma CP panels via this serial interface to provide central fire detection and control with distributed extinguishing systems Sigma XT modules may also be mounted separately from fire detection and control equipment and activated by addressable output modules or volt free contacts from other systems via two monitored activation inputs The fire detection part of the system has all of the benefits of the popular Sigma CP range with its many easily accessed configuration options and compatibility with a wide range of detection devices The Sigma XT extinguishing modules set a new benchmark for extinguishing control panels Each module is controlled by its own powerful microcontroller2. control or other signaling applications such as interfaces to BMS systems or house fire alarm systems The Sigma XT is equipped with a selection of volt free contacts which are often adequate for this purpose however for applications that require more outputs from the system the Sigma XT ancillary board provides a simple solution Up to seven ancillary boards may be connected to the status unit serial bus to provide distributed control and signalling at multiple locations if required hematic 24V PSU Sounder Board Sigma CP Ancillary Board 580 The versatility of Sigma XT panels can be further enhanced by fitting Sigma CP ancillary boards The S580 ancillary board connects to the RS485 serial bus of the detection part of the control panel and provides the ability to extend fire fault and coincidence signals to remote locations up to 1200 metres from the control panel using only two wires four if powered by the main panel Individual volt free changeover contacts are available for each zone common fire common fault and coincidence operation Up to seven ancillary boards can be connected to each control panel allowing differing zonal information and control to be distributed around a building using a simple serial data connection F1 Vs ar a a 4 mk we ee Ar aee a W gees lis Bina i r p E a ee dus aF a ve ae fa LE nr Lui 1 Erun gee ll s ni TA we r
3. Sigma XT module Fused at 500 milliamps 1 per Sigma XT module Via front panel Via front panel EN54 2 and EN54 4 for Sigma CP part EN12094 1 for Sigma XT modules Sigma XT technical specifications chart Size Single or two area models Size Three and four area models Mains supply Mains supply fuse Power supply rating K21021 K21041 K21042 K21081 K21082 Power supply rating K21083 K21084 Maximum ripple current Battery type Yuasa NP Battery charge voltage Battery charge current Battery fuse Current draw in mains fail condition Max current draw from batteries Sigma XT module Aux 24V output Sigma CP Aux 24V output 1st and 2nd stage Sounder outputs Fault relay contact rating Fire relay contact rating Local fire relay contact rating First stage contact rating Second stage contact rating Extract contact rating Zone quiescent current Terminal capacity Number of detectors per zone Number of sounders per circuit Detection circuit end of line Monitored input end of line Sounder circuit end of line Extinguishant output end of line No of detection circuits No of sounder circuits Extinguishant release output Extinguishant release delay Extinguishant release duration SIL AL FLT RST inputs Zone normal threshold Allowable EOL Detector alarm threshold Call point alarm threshold Short circuit threshold Head removal condition Cabling Monitored inputs normal threshold Allowable EOL M
4. ae ot wk LS L z eee a Tag ae P a al a a 2 z Le Up to 7 Ancillary Boards and 7 Status Units 523625 ai Sere rae ee Ancillary Board Ancillary Board Hold off unit a i Door Lock 4 Core FP200 max length 1200m 4 Core FP200 max length 1200m S588 Ancillary Board System Status and Control S588 Ancillary Board System Status and Control System Status and Control Board S461 Sigma CP Sounder Additional sounder circuits can be added to Sigma XT panels via S461 Sounder boards The S461 sounder board connects to the RS485 serial bus of the detection part of the control panel and provides 8 fully monitored sounder outputs that can be configured for common alarm two stage alarm or zonal alarm Up to seven sounder boards may be connected to each control panel to provide zonal monitored outputs distributed throughout an installation Sigma XT Coincidence Unit Up to 7 Ancillary Boards and 7 Status Units System Status and Control Up to 7 Ancillary Boards and 7 Status Units System Status and Control The following matrix shows the features available on all Sigma XT extinguishing panels Display Indicators Controls Number of extinguishing areas Number of detection zones Common sounder circuits Common alarm relay Common fire relay Common fault relay 1st stage sounder circuits 2nd stage sounder circuits Extinguishing outputs 1st st
5. bringing unparalleled intelligence and versatility to multi area extinguishing systems for the first time Sigma XT modules have inputs and outputs to cover all system requirements including individual monitored first and second stage alarms and dual extinguishing outputs The extinguishing outputs can be configured to operate together or as main and reserve for essential back up following a discharge They can also be individually calibrated to provide true open and short circuit monitoring through pyrotechnic actuators or a wide range of solenoids Connectivity In addition to Sigma XT extinguishing modules up to seven Sigma CP ancillary boards providing zonal and common relay outputs and seven Sigma CP sounder boards each providing an additional eight monitored sounder circuits can be connected to the Sigma CP RS485 serial bus at up to 1200 metres from the control equipment Also up to seven Sigma XT ancillary boards and seven Sigma Si status units can be connected to each Sigma XT module to provide remote status indication and control and additional outputs as required at up to 1200 metres from the control equipment This flexibility ensures that any system configuration can be realised with a minimum of cabling Ease of installation The simple construction of Sigma XT control panels utilises removable bridge plates for mounting all electronic assemblies These bridge plates bring the terminals to the front of the enclosur
6. 7 BS EN ISO 9001 2000 Certificate No EMS 518118 CS Fire Industry Association Certificate No 360 BS EN ISO 9001 2000 BS EN ISO 14001 2004 KM 73505 KM 96761 T y tt LE lt LE SE Y D gt ee INVESTOR IN PEOPLE N
7. age relay 2nd stage relay Released relay Fault relay Aborted relay Extract relay Manual release front panel Auto Man Mode select front panel Activation inputs Manual release input Hold input Abort input Auto Man mode select input Released pressure switch input Low pressure switch input Aux 24V output Master serial bus Status unit serial bus Status unit power output Main Reserve selection Extract output selection Standards 2 x 16 character LDC backlit High brightness LED Tactile rubber buttons 1 to 4 2 4 or 8 2 on Sigma CP part On Sigma CP part 30V 1 A On Sigma CP part 30V 1 A On Sigma CP part 30V 1 A 1 per Sigma XT module 1 per Sigma XT module 2 per Sigma XT module selectable as common or main reserve monitoring calibrated by microcontroller 1 per Sigma XT module 30V 1 A 1 per Sigma XT module 30V 1 A 1 per Sigma XT module 30V 1 A 1 per Sigma XT module 30V 1 A 1 per Sigma XT module 30V 1 A 1 per Sigma XT module 30V 1 A Manual release front panel Lift flap pushbutton Auto Man Mode select front panel Non retained keyswitch Activation inputs Two monitored inputs Allow Sigma XT modules to be activated by addressable modules or volt free contacts Fully monitored Fully monitored Fully monitored Fully monitored Fully monitored Fully monitored can be inverted for NC contacts 1 per Sigma XT module Fused at 500 milliamps RS485 RS485 1 per
8. e providing easy access to all wiring terminals The outer door may be removed to further improve access by withdrawing the easily accessible hinge pins This ensures clear access for wiring and protection of the electronic assemblies during installation Multiple knockouts in the top bottom and back and sides of the enclosures provide ample options for cable entries pata hant control Extinguis Model series 21 ooo En NIFCOLLLSS a aee General 5y Le Fire steam Si a ty S Weatherproof IP65 10 Lamp status unit with Mode Select amp Manual Release N911113WS 490580507 OO system Mode D Enable Control HANT wi a F PGES O PULL DOWN PUSH BUTTON j a to each Sigma XT and the Sigma XT control ny unit become indicators with common so available with mode manual release yr the remote d switches there is also me remaining until nclosure to match the LI OL gi E gi 6 Lamp status unit K911000M8 6 Lamp status unit with Mode Select K911100M8 f 6 Lamp status unit with Mode Select amp CCS Manual Release K911110M8 Lu 6 10 Lamp status unit Der with Mode Select amp Manual Release K911113M8 oc e 88 0 6 eo Board S58 oe Sigma XT Ancillary The Sigma XT ancillary board provides a means to extend signals from the extinguishing system for additional plant
9. o 150 ohms 130 ohms to 0 ohms 15 5 to 17 5 volts FP200 or equivalent max capacitance 1uF max inductance 1 mH 10K ohm to 2K ohm 2K ohms to 150 ohms 5 140 ohms to 0 ohms 5 Two wire RS485 connection ElA 485 specification 21 to 28V DC Fused at 500mA with electronic fuse Replace only with similar type See chart below Replace only with the same type With main power source disconnected 200 milliamp maximum continuous load 1 0 Amp total load over all circuits Maximum ratings not to be exceeded Maximum ratings not to be exceeded Maximum ratings not to be exceeded Maximum ratings not to be exceeded Maximum ratings not to be exceeded Maximum ratings not to be exceeded See tables 2 and 3 for detector types Supplied in terminals Supplied in terminals Supplied in terminals Supplied in terminals Dependent on model 2 x on detection section 1st stage and 1 x 2nd stage per exting area 1 Amp maximum load for 5 minutes 5 second steps 5 second steps Only to be used with Aux ROV terminal Use 6K8 end of line resistor Nominal trigger resistance 470 ohms Nominal trigger resistance 270 ohms 2 wire detector base or schottky diode base Metal cable glands must be used Max of 7 units per area RS485 data cable 300 milliamp max load Units 25 27 Fawkes Avenue Questor Dartford Kent DA1 1JQ United Kingdom www kentec co uk sales kentec co uk Tel 44 0 1322 222121 Fax 44 0 1322 291794 Certificate No FM 3298
10. onitored inputs alarm threshold Monitored inputs Short circuit threshold Status unit Ancillary board connection Status unit power output 385w x 520h x 110d 385w x 700h x 110d 230V AC 50Hz 10 15 100 Watts maximum 1 6 Amp F1 6A L250V 3 Amps total including battery charge 28V 2V 4 Amps including battery charge 28V 2V 200 millivolts Two 12 Volt sealed lead acid in series 27 6VDC nominal temperature compensated 0 7A maximum 20mm 3 15A glass 54 milliamps per module 3A K21021 K21041 K21042 K21081 K21082 4A K21083 K21084 Fused at 500mA with electronic fuse 1 per extinguishant area Fused at 2 5A not available to user 21 to 28V DC Fused at 1A with electronic fuse 5 to 30VDC 1A Amp maximum for each 5 to 30VDC 1A Amp maximum for each 5 to 30VDC 1A Amp maximum for each 5 to 30VDC 1A Amp maximum for each 5 to 30VDC 1A Amp maximum for each 5 to 30VDC 1A Amp maximum for each OmA minimum 2MA maximum 0 5mm2 to 2 5mm2 solid or stranded wire Dependent on type typically 20 Dependent on type and current consumption typically 20 6K8 5 2 Watt resistor 6K8 5 2 Watt resistor 10K 5 4 Watt resistor 1N4004 Diode Two to eight 21 to 28V DC Dependent on model 21 to 28V DC 21 to 28V DC Fused at 1 Amp Adjustable 0 to 60 seconds 10 Adjustable 60 to 300 seconds Switched ve min resistance 0 ohms max resistance 100 Ohms 10K ohm to 2K ohm 1K ohms to 390 ohms 370 ohms t
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