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GE FHSD720C Installation And User Manual Download Page 43

GE Security 

 FHSD700C Series Product Guide

www.gesecurity.net 

37

The cable materials are not specified, but in order to meet the low capacity specification 
polyethylene/polyolefin/polypropylene is used as the insulator, with PVC/flame retardant PVC as the 
overall sheath. Other materials can be used if the impedance and capacity requirements are met. 

Installation requirements may add other features, such as fire resistance, flame retardance, UL 
approval, low smoke and fume etc. 

Also remember to check that the electrical characteristics of the cable used is appropriate for the wiring 
distance required for the installation. 

Common Mode 

The RS485 inputs/outputs are not usually isolated from the equipment internal 0 V line. The maximum 
potential difference between the 0 V lines of all instruments connected to an RS485 communication 
cable is limited by the specification to between -7 V and +12 V. If this limit is exceeded, communications 
will be lost. 

Interference Induced onto Cable 

Twisted pair construction and cable screens do not completely shield the communication link from 
external electromagnetic interference (EMI). Good practice should be followed when installing 
communication cables to eliminate EMI. 

RS485 cables should not be installed in the same duct/tray as power cables, or switching cables. When 
RS485 cables cross power or switching cables, this should be at right angles. RS485 should not be 
installed in areas of high interference, where this is not possible, then electro-magnetic screening must 
be adopted for example, metal conduit or cable tray could be used. 

The total length of the cable run must not exceed 1200 m (4000 ft). It is only possible to exceed this 
length by use of repeater units to re-generate the signal. 

Terminating Cables 

It is imperative that the cable structure is maintained to a position as close as possible to the 
termination. This is to maintain the interference protection and reduce losses due to changes in cable 
impedance. 

The outer sheath and screen must not be cut-back for a distance of more than 100 mm (4 in.) from the 
termination. 

The twisted pair must not be untwisted for a distance of more than 25 mm (1 in.) from the termination. 

The recommended cable manufactured to RS485 specifications is: BELDEN 9841/9842 (or equivalent) 
- 24 AWG, polyethylene insulation, PVC sheath, UL style number 2919. 

   9841 Single twisted pair: communications data only 

   9842 Double twisted pair: 1 pair for communications data, 1 pair for 24 V supply. 

Please ensure that electrical characteristics are sufficient for the distance of connection between 
devices. 

Summary of Contents for FHSD720C

Page 1: ...FHSD700C Series Installation and User Manual June 2009 Document Number 16097_01 ...

Page 2: ......

Page 3: ...ed in this document Convention Description Caution This icon is used to indicate that there is a danger to equipment The danger could be loss of data physical damage or permanent corruption of configuration details Warning This icon is used to indicate that there is a danger of electric shock This may lead to death or permanent injury Warning This icon is used to indicate that there is a danger of...

Page 4: ...ectors must have a Fire 1 threshold set within 0 04 to 0 16 obs ft FHSD7215DC detectors must have a Fire 1 threshold set between 0 04 to 0 7 obs ft FHSD720C detectors must have a Fire 1 threshold set within 0 04 to 0 29 obs ft EN54 20 The product must use a power supply conforming to EN54 4 The product is compliant with EN54 20 sensitivity requirements provided that the hole sensitivity is better ...

Page 5: ...GE Security FHSD700C Series Product Guide www gesecurity net iii Approvals CFE EN54 20 VdS CPD CE EMC LVD ...

Page 6: ... Connections 8 3 3 Connection of Sampling Tubes 14 3 4 Remote Display Panel 15 4 Starting Up 16 4 1 Flow Normalization 16 5 Setup and Button Functionality 18 5 1 Access Codes 18 5 2 User Functions 19 5 3 Main Menu Modes 20 5 4 Input Output Modules 31 6 Maintenance 33 6 1 Servicing 34 Appendix A Display Panel Navigation 35 Appendix B Communications Guide 36 B 1 Installation Guide for RS485 Equipmen...

Page 7: ...able of drawing air samples down small bore tubes while low pressure systems use wide bore rigid sample tubes Small bore systems are often preferred when installations need to be unobtrusive RS232 RS485 and TCP IP interfaces enable flexible connectivity options for detector networking configuration and monitoring via GE Security Fire System Configuration and Management Software GE Security VSC and...

Page 8: ... than the preset alarm thresholds in the detector Alert Action Fire 1 and Fire 2 an alarm will be reported One or more Alarm relays preset to activate at an alarm threshold will signal the host panel after a preset time delay Alarm states are also shown on the display panel and an audible warning is given An optional alarm beacon can also be fitted for all detectors except the FHSD720C Systems wit...

Page 9: ...tates are global and will be set depending on the smoke density being measured regardless of which sector is being sampled Once in Trace mode each sector has an alarm indicator associated with it These individual sector alarms pulse progressively depending on the degree of alarm status in the same way as the Beacon please see Default Behavior of Alarm States and Trace Mode on page 3 2 3 Detector D...

Page 10: ...Not used for FHSD700C detectors 2 Menu key 3 Test key 4 Scan parameter scroll down key 5 Isolate parameter scroll up key 6 Sounder silence enter key 7 Reset value scroll down key 8 Accept value scroll up key Figure 2 2 Control and configuration keys 2 Status display Will normally show the smoke density value Also used for all Setup and Configure procedures 3 Alternate button function indicators Wh...

Page 11: ...or may activate due to an incorrect device configuration To prevent this from occurring please ensure that the STANDBY parameter in the Configuration menu is set to 0 For more information please see Table 5 4 on page 22 Aspiration Fault The rotary valve has a fault Detector Fault The laser smoke detector has developed a fault Isolated This has been put into Isolated mode when the unit functions no...

Page 12: ...ams in Section 3 1 M6 or M8 screws are suitable 2 Connect the cables for the power supply and any I O modules Ferrite cores should be fitted to the power cable whether DC or AC 3 Fit the pipe network to the system For details on how to design and install a pipe network refer to www gesecurity net 3 1 Mounting the Detectors Careful consideration should be given to the mounting location of the detec...

Page 13: ...eries Product Guide Figure 3 2 FHSD721C FHSD721DC Mounting Diagram and Dimensions Figure 3 3 FHSD724DC and FHSD726DC Mounting Diagram and Dimensions Figure 3 4 FHSD7215DC Mounting Diagram and Dimensions www gesecurity net 7 ...

Page 14: ...t 24 VDC power output rated to 1A for powering an external sounder addressable I O devices etc Fault Relay Output Activates when a Fault is detected Alarm Relay Outputs Alarm relays for each Alarm level Alert Action Fire 1 Fire 2 that are activated when the corresponding alarm level is detected Input Output Remote Reset Isolate Input Dual action input for remote reset and isolate Remote Reset Acti...

Page 15: ...or to take any strain External Power Supply Connection FHSD700C detectors are powered by an external 24 VDC power supply The power supply cable cores should be fitted individually with ferrite cores close to the cable gland inside the equipment case To fit the cables with the ferrite cores insert the 24V and 0V conductors through the ferrite cores and wrap around once to provide maximum effectiven...

Page 16: ...nding stud 3 RS232 connector 4 Ethernet connector 5 Fuse 1 A 6 Main I O board 7 Beacon connector 8 Display valve connector 9 Programming connector 10 Optional I O modules 11 Drop down display panel Figure 3 6 FHSD721C FHSD721DC to FHSD7215DC input and output interfaces 10 www gesecurity net ...

Page 17: ...e I O board for the FHSD720C detector FHSD720C units are powered by an external 24 VDC power supply Access to the interior of the unit is gained by removal of the front cover This is secured by four screw lock fixings one at each of the four corners releasing these fixings allows the removal of the cover complete with the self retained fixings The Fault Relay and other I O Module connections are a...

Page 18: ...further details CN3 Auxiliary Supply Output Interface 1 0 VDC 2 24 VDC Requires 7 x 0 2 6 A 24 AWG cable 1 A maximum load CN4 Remote Reset Interface 1 input 2 input Opto isolated input 24 VDC low current signal CN6 RS485 Interface 1 Shield 2 RS485 3 RS485 Belden 9842 cable or suitable equivalent Note Ensure that the Mid End Jumper Link is fitted correctly on pins 7 8 9 of CN 5 Please see Appendix ...

Page 19: ...te Maximum relay contact rating is 2 A 30 VDC Note Please see 4 Channel Relay Module on page 31 for full operational details The following tables do not apply to the FHSD720C detector Table 3 5 Connections To Remote Panel Optional from I620 Control Board RS485 Remote Control Data 1 24 VDC Supply Out Belden 9842 24 AWG cable or equivalent 2 0 V Supply Common 3 RS485 4 RS485 Note Ensure that the Mid...

Page 20: ...object into the inlet ports other than the correct size of piping This is to avoid damage to delicate electronic flow sensor components mounted just inside each port opening Other pipe and inlet specifications are addressed in the following table Table 3 6 Detector Inlet to Pipe Network Termination Specifications Detector Inlet Port Acceptable Pipe or Adapter Maximum Pipe Length Other Consideratio...

Page 21: ...e appropriate for the distance between the detector and display module When using the double twisted pair cable use one pair for RS485 communications the other pair for 24 VDC supply and ensure that matching signals are connected at each end To use the Display Panel remotely the main unit must also be configured for remote display operation by following these steps please see Figure 5 1 for User F...

Page 22: ...isabled The detector s may show faults immediately after power up and this is normal Reset the detector s to unlatch the relays and fault LEDs The fault LEDs on any display connected to the system will light up this is normal 4 1 Flow Normalization After the initial power up of the system flow normalization is necessary for the detector to learn the air flow characteristics of the system To normal...

Page 23: ...he pump speed to provide the vacuum rates in the system The pump speed cannot be altered from the factory default value under any circumstances Please follow these steps to normalise the air flow for a small bore system 1 Press MENU 2 Use Parameter UP DOWN Scan or Isolate buttons to scroll to CONFIGURE 3 Press ENTER Sounder silence button 4 Enter Level 1 Access Code 260 please see Section Access C...

Page 24: ...2 Code they have access at the Operator Level and Level 1 The Operator Access Code is changeable as a parameter in Configuration Mode which requires Level 1 Access The default Access Codes are shown below Table 5 1 FHSD700C Detector Access Codes Access Level Access Code Operator 0 Level 1 260 Level 2 693 Level 3 Factory Use Only 5 1 1 How to Enter an Access Code When entering an Access Code the al...

Page 25: ...el the isolated state Note If a power cycle is applied to the detector the detector will not remain in an isolated state TEST None Successive presses of the Test button show 1 Date on the Status Display 2 Time on the Status Display 3 IP address if the unit is TCP IP enabled on the Status Display 4 Subnet net mask if the unit is TCP IP based on the Status Display 5 Media Access Control MAC address ...

Page 26: ...tain values and parameters To obtain this software contact GE Security or visit the website www gesecurity net The following sections show how to enter the Main Menu Modes and what parameters are available in each of these modes 5 3 1 FAULTS Fault List Minimum Access Level Required None This menu item shows a list of the faults that are current in the system Use the Function UP DOWN buttons Isolat...

Page 27: ... sectors sampled The flow rates should be normalized to 100 at installation High pressure systems measure pressure for each sampled sector The tube lengths should be equal BATTERY V N A OBS M or OBSC FT Obscuration value in meters or feet This is the same as the normal display To change from metric to imperial see section 3 4 6 REFDENS Reference Density MODn 1 to 5 Shows the module types that are ...

Page 28: ... 1000s 10s BUZZER Internal Sounder Enable 0 or 1 1 BEACON Beacon Enable 0 or 1 1 ADDRESS RS485 Address 0 to 30 31 off TESTTIM Time between automatic scans Note TESTIM is also used for FHSD700C 15 Flow normalization by pressing ENTER 0 to 30 mins 20 MIN DWELL Rotary valve dwell time 0 to 60s 0s GAIN X See description MOD1 Set Module 1 usage MOD2 Set Module 2 usage MOD3 Set Module 3 usage MOD4 Set M...

Page 29: ...tching FLTLTCH A FAULT condition will exist if any specific fault within the system is detected It will be accompanied by closure of the Normally Closed contacts of the FAULT relay and illumination of the GENERAL FAULT indicator If it is made Latching the relay contacts and indication will remain even after the originating Fault condition has ceased and the system must be reset to clear FAULT The ...

Page 30: ...companies all ALARM conditions BEACON The integral Beacon may be enabled or disabled on a permanent basis The default is 1 enabled The beacon if enabled accompanies all ALARM conditions ADDRESS This is the detector s RS485 address The range is 0 to 30 a value of 31 disables RS485 communications The default setting is 31 off Note that if the display panel is used remotely communication to it is by ...

Page 31: ...value only the day values are applicable TRC PRESS FHSD7215DC only Trace Pressure is used as a figure to initiate the valve into a scan routine when the required change in airflow is detected This figure is set by monitoring the REL in value with the Rotary valve monitoring flow in the overall position This value must be left at the default value of 25 for EN54 20 compliance www gesecurity net 25 ...

Page 32: ... obs m 0 06 obs m Sn ALERT Sector n Alert Level 0 01 to 20 obs m 0 04 obs m TRACE Trace Level 0 01 to 20 obs m 0 03 obs m FINAL SECTOR AS ABOVE F2DEL Fire 2 Delay 0 to 60 secs 3 secs F1DEL Fire 1 Delay 0 to 60 secs 3 secs ACTDEL Action Delay 0 to 60 secs 3 secs ALTDEL Alert Delay 0 to 60 secs 3 secs TRCDEL Trace Delay 0 to 60 secs 3 secs Note Delay settings are only applicable to FHSD720C and FHSD...

Page 33: ...he next step month month will flash 3 Press UP DOWN buttons to change the month 4 Press ENTER to update the month and move to the next step year 5 Press UP DOWN buttons to change the year 6 Press ENTER to update the year Continue as above to change the time When the ENTER button is pressed the flashing element will progress from date through to seconds with the display format changing from date to...

Page 34: ...flashing 1 Use Value UP DOWN buttons to set the first field 2 Press ENTER to update and move to the next field 3 Repeat the two steps for all fields Once the IP Address has been updated the display will now show IP MASK Press UP to show the actual IP MASK with first field flashing 1 Use Value UP DOWN buttons to set the first field 2 Press ENTER to update and move to the next field 3 Repeat the two...

Page 35: ...o display smoke valve in obs ft Normally obs m REMPANEL 0 or 1 0 Enables remote panel operation A communications fault will be displayed if this is enabled without a remote display connected REMPOD 0 or 1 0 Set to 1 if a Remote Sensing Unit is connected Note This option is not available for standard FHSD700C devices DETFLOW 0 or 1 1 In addition to individual sector flow monitoring detector flow mo...

Page 36: ...N buttons Isolate and Scan to inspect any item in the maintenance list Table 5 8 Maintenance Parameters Parameter Description LASERIN Current smoke value for the laser detector output MOD1 IN Identification number of Module 1 MOD2 IN Identification number of Module 2 MOD3 IN Identification number of Module 3 MOD4 IN Identification number of Module 4 MOD5 IN Identification number of Module 5 5 3 12...

Page 37: ...o a number from 1 to 6 representing the triggering event where 1 Alert 2 Action 3 Fire1 4 Fire2 5 Flow fault 6 General Fault All four relays on the card will now activate for this event The following table shows how relay cards will be setup when using one or more modules Table 5 9 Relay Module Set up Table Relay Module 1 2 3 4 Relay Relay Relay Relay 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Unit Config Se...

Page 38: ...FHSD700C Series Product Guide GE Security Figure 5 4 Relay Module Single pole double throw SDPT contacts are used in the relay modules with a rating of 2 A at 24 VDC 32 www gesecurity net ...

Page 39: ... by a main panel or monitoring station or WEEKLY when the system is monitored 1 Check control panel for fault indications etc 2 Test the function of control panel LEDs Not FHSD720C or Blind unit 3 Record results in system log book report any abnormal results The following page gives information on the servicing tests to be carried out on the detector Servicing must only be carried out by trained o...

Page 40: ...X X X X Replace detector filter elements clean chamber X X X X X X X X Replace internal filters X X X X X X X X Inspect and clean replace in line end of line filters X X X X X X X X Replace Gaswitch Seals Exchange unit X X FHSD724DC FHSD726DC FHSD7215DC ONLY Replace pump vanes rotor Exchange unit X X FHSD7215DC ONLY Replace exhaust filter silencer associated tubing X X FHSD7215DC ONLY Normalise fl...

Page 41: ...GE Security FHSD700C Series Product Guide Appendix A Display Panel Navigation www gesecurity net 35 ...

Page 42: ...t is not intended to be a full and complete set of instructions The installer shall be more qualified to take the relevant technical safety and legal decisions B 1 1 Electrical Supply The supply voltage and frequency must be maintained within the equipment requirement specification Any breaks in supply or reductions in voltage below the specified minimum will result in equipment shutdown When this...

Page 43: ... cables to eliminate EMI RS485 cables should not be installed in the same duct tray as power cables or switching cables When RS485 cables cross power or switching cables this should be at right angles RS485 should not be installed in areas of high interference where this is not possible then electro magnetic screening must be adopted for example metal conduit or cable tray could be used The total ...

Page 44: ...cated on the underside of the detector when mounted upright on a wall The laser chamber is identified by two safety labels shown in the following diagrams Figure C 1 Laser chamber safety labels Warning The laser emits visible light and can be hazardous if viewed with the naked eye Under no circumstances should the detector chamber be opened except by qualified personnel 38 www gesecurity net ...

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