SERVICE INSTRUCTIONS FOR FX
Contents
1. 8 21 Normal 0 67 1 32 2 9 5 4 Alarm 1 7 4 67 7 8 19 9 Fault short circuit 5 1 24 24 2 114 8 Fault open circuit 0 0 31 0 1 0 Normal 0 67 1 23 2 9 5 0 Input line 4 7 Alarm 1 59 4 67 7 3 19 9 Fault short circuit 5 1 9 18 24 2 39 5 9 21 3 1 4 Fault Monitoring of Loop Devices Fault and maintenance warnings of the loop devices are identified by codes in the display The codes and a short explanations of each are listed below Fault and maintenance warnings of address point 5 start up phase when scanning devices after panel re start or when is loop connected by user r runnning time when device id normally monitored c loop is confugured with PC n loop is not configured MAINTENANCE 00 s c The anytype of device has been configured for this address but no device is installed This is indicated only once and will disappear after resetting the warning MAINTENANCE 01 s c No device has been configured to this address but some device is installed This is indicated only once and will disappear after resetting the warning MAINTENANCE 02 Definite type of device has been configured but no device is installed This warning can be removed only by installing device to this address or changing the configuration MAINTENANCE 03 sc The configured type and installed type is not the same This warning can2. Alarm device line control is continuous On gt Program update state Off gt Normal state On gt External power in use Off gt External power not in use Four Input Output Controllers in panel Three Input Output Controllers in panel Two Input Output Controllers in panel One Input Output Controllers in panel Four Loop Controllers in panel Three Loop Controllers in panel Two Loop Controllers in panel One Loop Controller in panel 17 21 Loop Controller LC and Intellia loop Controller ALC Position Function Default settings are in bold face J1 J2 The address of Loop Controller is 1 The address of Loop Controller is 2 The address of Loop Controller is 3 The address of Loop Controller is 4 J3 On gt Program update state Off gt Normal state On gt Leds of loop devices blink Off gt Leds of loop devices not blink Conventional Loop Controller CLC Function Default settings are in bold face BB The address of Loop Controller is 1 i The address of Loop Controller i
3. access level 4 Control Panel returns to access level 1 when the key is turned off or removed Functions in access level 3 Thereset time of the fire alarm and prealarm is 5 sec normally 15 sec Detector loop may be disconnected the voltage during disconnection between loop terminals is 0 but there is no galvanic isolation between the loop and the control panel Zone may be set to the test state During zone test the alarms and fault warnings in tested zone are indicated only on the LCD display The outputs and other indicators are not activated When connected analog sensor is selected on the display the analog value received from that sensor is displayed as the puls width in ps The panel may be set to the configuration mode by setting the config jumpper on the Master Controller The language of the user interface may be changed from the menu The analysis of the loop communication may be selected from the menu The detectors that has exceeded the maintenance level dirty detector may be called to the display The event register may be erased Functions in access level 4 alarm counter may be erased from the menu 16 21 6 SETTINGS ON THE COMPONENT BOARDS Master Controller MC Function Default settings are in bold face On gt Configuration state Off gt Normal state On gt Alarm device line control is pulsed Off gt
4. cabinet earth is connected to the monitor circuit trough the two mounting screws in the Master Controller Fault warning is indicated if the resistance from either pole to the earth is less than 20 kO The faults are indicated as fault or fault Monitoring Normally the voltage level between cabinet and Gnd ie negative of 24V supply on the Master Controller is 14 V FAULT is indicated if voltage level is lt 7 8 V FAULT is indicated if voltage level is gt 19 6 V These voltage levels are floated by factor 27 where Vsuppiy is voltage level measured from eg 24 V supply terminals on the Master Controller 3 5 POWER OUTPUT MONITORING Power outputs of MC LC ALC and IOC The power output current is limited to approx 650 mA If the load is bigger than 650 mA power output fault is indicated Power outputs of PSA 2 2A The power output current of each output is limited to approx 2 1 A If the load is bigger than 2 1 A power output fault is indicated Power outputs of PSB 4 5A The power output current of each output is limited to approx 4 2 A If the load is bigger than 4 2 A power output fault is indicated 13 21 3 6 BATTERY CHARGER AND MAINS MONITORING The fault warnings of the battery charger and mains Battery low voltage fault If voltage level of battery is lt 23 E g during a long mains break Battery fault If the battery circuit is broke
5. fault monitoring battery charge switch is opened battery discharge switch 15 closed 100 ms is waited 50 ms is waited battery voltage discharged Ubm d is measured battery discharge switch is opened battery charge switch is closed Test sequence charger fault monitoring battery charge switch 1s opened 100 ms is waited iffast charge control is active o charger voltage fast charge Ucm f 15 measured o fast charge control is deactivated o 50 ms is waited charger voltage normal Ucm n is measured o fast charge control is activated If fast charge control is not active o charger voltage normal Ucm n is measured o fast charge control is activated o 50msis waited o charger voltage fast charge Ucm f 15 measured o fast charge control is deactivated battery charge switch 15 closed Fault limit Fault indication Uem f Ucm n lt 0 5 V in four consecutive measurings Charger fault Ubm d lt 21 V in four consecutive measurings Battery fault Battery charge control The battery charge switch 1s opened if charger voltage 20 V The battery charge switch is closed when battery voltage gt 20 5 V Fast charge control The fast charge control is activated if battery voltage 23 V The fast charge control is deactivated when battery voltage gt 23V for 72 h 15 21 4 PROGRAM MONITORING System fault The internal system is supervised by the processor The independent w
6. Oy Esmi Ab Kalkkipellontie 6 P O Box 415 FIN 02601 Espoo Finland Tel 358 10 446 511 Fax 358 10 446 5103 www esmi com SERVICE INSTRUCTIONS FOR Fire Alarm System FX Version 2 3 2006 09 27 Jari Ollila Hannu Salo Oy Esmi Ab Copyright c Oy Esmi Ab 1994 2006 The copyright to the documentation herein is the property of Oy ESMI Ab Espoo Finland The contents may be used and or copied only with the written permission from ESMI or in accordance with the terms and conditions stipulated in the agreement contract under which the documentation has been supplied F FX CUSTOMER SERV FX SERVICE INSTRUCTIONS v 2 3 doc ie po d V E 10 CONTENTS VERSIONS OF THIS DOCUMENT 3 BLOCK DIAGRAM OF THE CONTROL PANEL eese esent enne enses enne tn enean stan 4 MONITORINGS FAULT EXPLANATIONS eeeeeeeee cesare ceco sento sensn seinen nese zeerenecee 5 PROGRAM MONITORING SYSTEM FAULT eere 15 ACCESS LEVEL 3 SERVICE STATE AND 4 15 SETTINGS ON THE COMPONENT 16 PC CONEIGURA TION inline 18 TO UPDATE THE APPLICATION PROGRAM IN THE UNITS eere 20 RESTARTING THE SYSTEM curia apra 20 BOARD REPLACEMENT uit 20 1 3 21 VERSIONS OF THIS DOCUMENT Version Date By Modification 0 15 Initial document as suppli
7. able resistance between panel and first short circuit isolator and between two short circuit isolators is 15 ohms 3 1 2 1 Normal Condition Normally the voltage between terminal A and A on the loop controller is approx 27 2 V During communication the voltage of the loop varies between 27 2 V and 35V 3 1 2 2 Fire Condition If fire is detected there is no change in the loop voltage compared to the normal condition only current consumption is increased because of alarm led of detector 3 1 2 3 Loop Break Condition Cable resistance of loop has radically increased so that depending on the load the voltag over and B is lower than 14 V After a loop break detection the second loop relay 15 activated and the loop 1s supplied also from the end point terminals and B Monitoring Dc voltage level between B and B is lower than approx 14 V 7 21 3 1 2 4 Short Circuit Condition If the loop voltage falls below the fault limit the supply of the loop is cut and after a new start up the isolator circuit can separate the faulty part of the loop if at least one isolator is installed in the loop Monitoring The loop current is limited to approx 560 mA If the loop voltage measured between A and A is less than 25 V the short circuit 1s detected 3 1 3 Conventional Loop Controller CLC The FX panel handles internally the whole CLC board as one addressable loop and each conventional line as an address of that lo
8. atch dog will interrupt the running program if not updated by the processor at least every 1200 msec System faults are indicated on the display with steady GENERAL FAULT and SYSTEM FAULT indicators and with an audible signal If the running processor cannot control the system the independent watch dog lock the the system and the system fault is indicated and fault routing output is activated on the Master Controller board If system fault is detected by software eg wrong check sum in configuration memory system fault is indicated and the fault routing output is activated on the Master Controller board and there is information on the display to describe the reason of system fault WARNING Normal operation of the fire control panel is stopped when a system fault is detected NOTE It is important that system fault texts on Icd display if available are recorded by service person for later fault analyzing The locked System fault indication may be removed only by pressing the restart buttons on the Master Controller Unit or by turning off the power of the system by disconnecting the battery cable and the 30Vac supply cable from the Power Supply Unit and after a few seconds turning on the power again 5 ACCESS LEVEL 3 Service state AND 4 The Control Panel is set into access level 3 service state or 4 by entering correct password from the user panel The Control Panel has to be set first into access level 3 before setting into
9. ated in the display Fault limits are the same as in normal state 3 3 INPUT MONITORING The function and the normal state of the inputs depends on the configuration Functions for inputs Input Normal open Normal closed Not in use Evacuation input Default Fault warning input Default for IOC input 1 Default Fault in fire alarm router Default for MC input 1 Default Fault in fault warning router Default for MC input 2 Default Fault in extinguisher Default for IOC input 2 Default Maintenance warning input Default Technical alarm input Default Silent technical alarm input Default Day mode activation input Default Delayed alarm enable input Default Day mode and delayed alarm enable Default General silence input Default General reset input Default Internal logic input Default External logic input Default Extinguisher activated input Default for IOC input 3 Default Smoke vents activated input Default for IOC input 4 Default Activation of customer led 1 Default Activation of customer led 2 Default 12 21 Monitoring Normally closed lines are activated if voltage level between terminals is gt 3 0V resistance is gt 6 Normally open lines are activated if voltage level between terminals is lt 3 0 V resistance is lt 6 3 4 EARTH LEAKAGE MONITORING Earth leakage is monitored with respect to both the positive and the negative supply voltage poles The
10. be removed only by changing device to this address or changing the configuration MAINTENANCE 04 s n A module and a detector has the same address switch setting This is not allowed without configuration Module data will replace detector data in memory Warning will be re created after reset Addresses have to be fixed and either the panel has to be restarted or the loop has to be disabled and re enabled in service state MAINTENANCE 05 sn Factory setting of address switches are 0 0 When panel starts or a previously disabled loop is re enabled detector s and module s with 0 0 address value are indicated maintenance warning The LED s of the detector or module blink automatically for easier identification It is not possible to detect any other fault or fire conditions for units that has the 00 address FAULT 06 s c n Unknown type of device FAULT 07 s n Device removed from this address during loop disablement The fault is detected when the loop is re enabled Disablement of an address with this fault is not possible because the data of the unit will be removed from memory when the fault is reset If disabled before the loop enablement the disablement will also be removed automatically when the fault is reset This is indicated only once and will disappear after resetting the warning New addresses devices are found in the loop This is indicated only once and will disappear after resettin
11. d A board is removed by Loosening two turns two screws type pozidrive 1 in both front corners Moving the board first laterally cm and then up cm and then pulling it out laterally from the mother board connector and the rack A new board is installed in opposite order 21 21 APPENDIX 1 Fuses Fuses on the Power supply board PSA 2 2A Fuse Type Protects BATT FUSE T6 3A Battery pole MAIN FUSE T3 15 30Vac the secondary circuit of transformer Fuses on the Power supply board PSB 4 5A Fuse Type Protects BATT FUSE T6 3A Battery pole MAIN FUSE T6 3A 30Vac the secondary circuit of transformer The short circuit protections in other power supply outputs and in alarm device outputs are not done by fuses and those protections recover automatically
12. e 500 protocol Poss loop ci um iot Max number of ashing is selectsble by jumper LC ALC and CLC common for both loops i units together is 4 27 V output 2 pcs address of LC for external devices unit is selectable max 500 mA byjumpers loc short circuit protection fault monitoring Program update Max number of state is selectable IOC units is 4 by jumper Loop 1 or 2 pcs address of IOC 1 s depend on assembling version ALC uh Apollo protocol lt gt y Jump leds of loop devices flashing not flashing is selectsble by jumper number of LC ALC and CLC common for both loops units together is 4 27 V output 1 or2 pcs address of ALC Du dee a unit selectable E 500 short circuit protection program update fault monitoring state is selectable by jumper Conventional line 16 pcs CLC short circuit protection PSA 2 2A alarm and fault monitoring Max number of or LC ALC and CLC PSB 4 5A units together is 4 address of CLC unit is selectable by jumpers 4 21 Printer INFO Config RS 232 INFO RS 485 line termination is selectable by jumper ESAMESA 2 pcs RS 485 line termination is selectable by jumper Contact input 4 pcs normal open or close contact Relay output 2 pes max 30 VDC 1 A 27 V output 2 pcs for external devices max 500 MA short circuit protec
13. ed to the test house 1 1 20 08 2005 IN New fault codes added 12 66 92 93 94 1 2 27 10 2005 TB Clean up of old changes minor editorial changes 1 3 27 10 2005 TB Rewriting of access levels chapter 1 7 20 03 2006 HJS Intellia Loop Controller ALC added PSA monitoring and fuses added CLC line monitoring added 2 0 09 05 2006 TB All changes of previous versions up until temporary version 17 accepted tracking of changes stopped Document released as version 2 0 2 1 31 05 2006 IN Fault and maintenance codes of address points updated 2 11 07 2006 SS MC flash erase procedure added 2 27 07 2006 HJS ALC loop cable resistance specification modified 2 BLOCK DIAGRAM OF THE CONTROL PANEL UI MC 27 V input 2 pcs for external power supply dai faut monitoring address of cabin is selectable by rotary switches 27 V output for external devices number of IOC units is max 500 mA l selectable by jumpers short circuit protection fault monitoring number of LC units is selectable by jumpers Relay ut 2 pes configuration state is 7 Dons en qum A selectable by jumper program update state is Alarm device output sblectable by max 500 mA short and open circuit monitoring short circuit protection continuous pulsed control is selectable by jumper ESAMESA system fault 1 assistance Contact input 2 pcs processor to normal open or close contact I Loop 2 pcs LC Sys
14. g the warning sensor but the feature not exist in sensor not compatible gt 1 3 FAULT 13 s c n Two or more devices have the same address double address MAINTENANCE 14 s c n Bad scan responses of a device MAINTENANCE 15 s c n Frame type ID is not compatible with memory type ID FAULT 08 s n The type of device is changed This is indicated only once and will disappear after resetting the warning 10 21 MAINTENANCE 16 Protocol family of device and configuration mismatc p UT Too low analog value 400 us received from analog sensor Fault in the internal operation of an OMNI 2251TEM 7251LASER sensor Invalid reply from the address FAU FAU Two or more devices have the same address double address Break in the input circuit of a monitor module Break in the output circuit of a control module Short circuit in output circuit of a control module Input module has been configured as fault input When module alarms FX show it as fault warning FAULT 58 1 Input module has been configured as zone disablement device and pue disablement time exceeds default 12h MAITENANCE 59 r Input module is configured as maintenance input When module alarms FX show it as maintenance warning MAINTENANCE 60 A dirty detector If the analog value of the detector has exceeded the maintenance limit for more than 24 hours this war
15. ircuit Condition If the loop voltage falls below the fault limit the supply of the loop is cut and after a new start up the isolator circuit can separate the faulty part of the loop if at least one isolator is installed in the loop Monitoring The loop current is limited to approx 560 mA If the loop voltage measured between A and A is decreased more than 5 V comparing the normal loop voltage the short circuit is detected 3 1 2 Intellia Loop Controller ALC A detection circuit of the FX control panel is a closed loop That means the loop starts at and returns to the Intellia Loop Controller ALC A single break in the loop cable doesn t prevent the communication in the loop The start point of the loop is connected to the terminals and A and the end point of the loop is connected to the terminals B and B The communication between loop devices and loop controller is accomplished by using serial communication The loop devices includes sensors and other addressable modules installed to the loop The loop controller sends the address and command bits The loop devices response with current pulses The break monitoring circuit is on the ALC The voltage level between terminals B and B is monitored Short circuit isolators are provided on the loop controller both in the start point and in the end point of the loop Maximum cable resistance of the loop is 60 ohms and capacitance between the loop wires is 500 nF Maximum c
16. n e g blown fuse or loose connectors Charger over voltage fault If voltage level of charger is too high gt 32 V Charger fault If mains is on and Control Panel doesn t get supply voltage from charger If control circuit of fast charge is out of order If mains is off for 30 min gt Fast charge a 5 control 5 Ucm 24V Acide ii converter Charge switch ONL Ubm Se Discharge switch eb EE Load circuit Battery low voltage charger over voltage and mains fault monitoring The test is done at intervals of 100 ms Test sequence battery voltage Ubm is measured charger voltage Ucm is measured mains input is read Fault limit Fault indication Ubm 23 V in four consecutive measurings Battery low voltage fault Ucm gt 32 V in four consecutive measurings Charger over voltage fault Mains off for 30 min Mains fault 14 21 Battery and charger fault monitoring The tests are done at the same time at intervals of 40 s and immediately after the fault reset If faulty result is measured then the tests will be re done at intervals of 100 ms until four faulty result or one ok result have been measured The tests are not done if mains 1s off or charger 15 in over voltage condition The battery fault monitoring test is not done if charger fault is active Test sequence battery
17. ng RS232 signal levels and including Rd and Td signals No handshake signals are needed To connect the PC to the FX you will need a specially made cable according to the following 25 pole D s pole D _ a h contact on the EE Controller RD3 RxD2 TXD o TxD2 1 RXD GND 7 GNDS se 7 2 Preparing FX for configuration To prepare the FX for configuration data transfer you have to set access level 3 and start the configuration task in the FX To set access level 3 you select current access level from the menu press the Scroll wheel and enter the password rolling the wheel To start the configuration task you close the pins of jumper named CONF on the Master Controller board FX indicates its readiness by displaying the text READY FOR CONFIGURATION in the LCD 19 21 7 3 the Flash memory back to factory defaults The configuration memory on the flash memory can be erased back to factory defaults by the following disconnect power from the panel set config jumper ON on MC turn the panel ID number HEX address selector switches on MC to E and F turn the power ON follow the instruction on the panel LCD screen when the reboot request can be seen on the screen disconnect the power set both address switches back to 0 and remove the config jumper connect power back to the
18. ning is indicated Ifdetector exceeds value during 24h after user reset this fault warning fault warning is re generated immediatelly Also at case that value of some other detector s stay over the maintenance limit but 24h timeout has not expired at the moment when user select from the menu report dirty detector and press enable at access level 3 this fault warning is created OMNI 2251 7251LASER drift compensation alert OMNI 2251TEM gt 200 560 7251LASER 2200 lt 650 Break or short circuit at the conventional sub loop of conventional zone module LT 63 Invalid response from detector gt 4000 us for normal sensors 7860 and lt ee 1600 for the OMNI sensor F F FAULT 64 Device type or functional type changed when loop is running FAULT 65 r Sensor with separate remote LED control feature is changed to same type device without this feature More often this event is indicated with fault 64 FAULT 66 1 Input module has been configured as fault in extinguisher When module alarms FX show it as fault warning FAULT 70 Undefined fault code from ALC device F emory write of device failed LT 51 lt F Communication troubles with device Self test of the failed Beam sensor CPU fault Beam sensor align targeting Beam sensor general fault Beam sensor signal too high i AULT 90 r
19. op Each conventional line can therefore be configured and used just as the conventional zone module connected to an addressable detection circuit It also means that the conventional lines are handled by the user in the same way as the conventional zone modules e g for disablement re enablement Each line is by default in its own detection zone The voltage supplied by the CLC to the conventional line is 21 Vdc to 24Vdc Monitoring of conventional line Configuration M Voltage V OVET Current mA Condition measuring resistor li Type End of line Exi area R200 215 Fault open circuit 0 0 5 0 1 8 Conventional Normal 0 9 1 65 4 0 6 8 li 4k7 no ine Alarm 2 05 13 75 9 5 59 4 Fault short circuit 14 21 24 67 9 144 8 Fault open circuit 0 0 43 0 1 5 Conventional Normal 0 81 1 43 3 6 5 9 li 4k7 yes Alarm 1 85 5 96 8 6 25 5 Fault short circuit 6 37 9 18 30 3 39 5 Fault open circuit 0 1 0 4 0 Normal 1 4 2 69 6 4 11 3 2k04 i5 Alarm 3 11 13 75 14 6 59 4 Fault short circuit 14 21 24 67 9 114 8 Fault open circuit 0 0 82 0 3 2 Normal 1 21 2 17 5 5 9 1 2k04 yes me Alarm 2 57 5 96 12 0 25 5 Fault short circuit 6 37 9 18 30 3 39 5 Input line 4k7 no Fault open circuit 0 0 31 0 1 0
20. panel panelis starting without configuration data e e Ls WARNING The fire detection and alarming functions are disabled during configuration condition The FX has to be restarted when the configuration is done by selecting the restart command in the configuration tool by pressing restart button on the Master Controller board or by disconnecting the mains and the battery and after few seconds turn on the power again 20 21 8 TO UPDATE THE APPLICATION PROGRAM IN THE UNITS The application program may be updated to Master Contoller MC Loop Controller LC and Intellia Loop Controller ALC separately connecting the PC to the MC unit and download the application to the unit The application programs in Conventional Loop Controller CLC I O controller IOC Power supply A PSA and Power Supply B PSB may be downloaded only in factory So the update of the program is done by replacing the unit 9 RESTARTING THE SYSTEM The system starts automatically when power is connected To connect power to the panel connect the 30Vac cable and battery cable to the Power Supply unit The system can be restarted without power down power up by pressing the restart button on the Master Controller Board 10 BOARD REPLACEMENT NOTE Always de energize the system by disconnecting the battery cable and the 30Vac cable from the Power Supply unit before replacing a boar
21. s Unacceptable device ALC detector is not Intellia device is XP95 but not configured FAULT 92 1 break in input line of the CLC unit FAULT 93 short circuit in input line of the CLC unit FAULT 94 1 voltage problem in input line of the CLC unit s start up phase when scanning devices after panel re start or when is loop connected by user AU i AU AU AU AU AU AULT 71 r AULT 72 Memory read of the device failed AU AU AU AU AU AU 11 21 r runnning time when device id normally monitored c loop is confugured with PC n loop is not configured 3 2 ALARM DEVICE LINE MONITORING Fault warning is indicated if there is a short circuit or a break in the alarm device lines Alarm device lines are monitored with reversed polarity line is positive and line is negative Therefore all alarm devices have to be provided with diodes and all the lines with End Of Line resistors 4 7 kohm The alarm device line current is limited to approx 650 mA If the load in alarm state is bigger than 650 mA short circuit fault is indicated 3 2 1 Monitoring in normal state Fault is indicated if the resistance in the line is gt 8800 Q including eol 4700 Q open circuit is indicated the resistance in the line is 600 Q short circuit is indicated 3 2 2 Monitoring in test state Measured values of the alarm device lines are indic
22. s 2 i The address of Loop Controller is 3 The address of Loop Controller is 4 Input Output Controller Function Default settings are in bold face The address of Input Output Controller is 1 The address of Input Output Controller is 2 The address of Input Output Controller is 3 The address of Input Output Controller is 4 18 21 On gt Alarm device line 1 control is pulsed Off gt Alarm device line 1 control is continuous On gt Alarm device line 2 control is pulsed Off gt Alarm device line 2 control is continuous On gt Alarm device line 3 control is pulsed Off gt Alarm device line 3 control is continuous On gt Alarm device line 4 control is pulsed Off gt Alarm device line 4 control is continuous 7 PC CONFIGURATION The system can be configured with site specific data with a PC Personal Computer and a configuration tool supplied by ESMI Usage of the configuration program is explained in the user manual of the program The configuration data can be read from and written to the FX panel 7 1 Connecting a PC to the FX The FX has a serial communication port usi
23. s and loop controller is accomplished by using serial communication The loop devices includes sensors and other addressable modules installed to the loop The loop controller sends the address and command bits The loop devices response with current pulses The information 1s represented by the lengths time of these pulses The break monitoring circuit is on the LC The voltage level between terminals and B is monitored Short circuit isolators are provided on the loop controller both in the start point and in the end point of the loop Maximum cable resistance of the loop is 40 ohms and capacitance between the loop wires is 360 nF 3 1 1 1 Normal Condition Normally the voltage between terminal A and A on the loop controller is approx 24 V when the mains is on During communication the voltage of the loop varies between 24 V and 5V and 0 V 3 1 1 2 Fire Condition If fire is detected there is no change in the loop voltage compared to the normal condition only current consumption is increased because of alarm led of detector 3 1 1 3 Loop Break Condition Cable resistance of loop has radically increased so that depending on the load the voltage over B and B is lower than 14 V After a loop break detection the second loop relay 15 activated and the loop is supplied also from the end point terminals and B Monitoring Dc voltage level between and B is lower than approx 14 V 6 21 3 1 1 4 Short C
24. tion fault monitoring e Alarm devices output 4 pcs Lo max 500 mA short and open circuit monitoring short circuit protection continuous pulsed control is selectable by jumper Mains supply _ class 230VAC 50 Hz mains on off monitoring Battery fault monitoring short circuit protection 27 V output 2 pcs for external devices gt max 2 PSA or 4A PSB short circuit protection fault monitoring 5 21 3 MONITORINGS FAULT EXPLANATIONS All fault warnings are indicated on the display with an optical and an audible signal Fault warning origins are specified either by means of a monitor specific LED or by means of a fault explanation displayed on the alphanumeric display To clarify the reason for a fault warning first silence the common fault warning disable the monitoring of the faulty object reset the fault warning condition then select the faulty object set it to test state 31 MONITORING OF DETECTION CIRCUITS 3 1 1 Loop Controller LC A detection circuit of the FX control panel is a closed loop That means the loop starts at and returns to the Loop Controller LC A single break in the loop cable doesn t prevent the communication in the loop The start point of the loop is connected to the terminals A and A and the end point of the loop is connected to the terminals B and B The communication between loop device
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