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574-771

Rev. A

4020 Fire Alarm System

System Troubleshooting Guide

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Содержание SafeLINC 4020

Страница 1: ...574 771 Rev A 4020 Fire Alarm System System Troubleshooting Guide ...

Страница 2: ...RODUCT THAT APPEARS DAMAGED Upon unpacking your Simplex product inspect the contents of the carton for shipping damage If damage is apparent immediately file a claim with the carrier and notify Simplex ELECTRICAL HAZARD Disconnect electrical power when making any internal adjustments or repairs Servicing should be performed by qualified Simplex Representatives STATIC HAZARD Static electricity can ...

Страница 3: ...rface PCB Layout 2 10 Power I O Connector Voltage Points 2 10 Power I O Interface PCB Assembly I O Connectors 2 11 4020 Power Supply 2 12 Description and Functions 2 12 Application 2 12 Power Supply I O Connectors 2 12 Chapter 3 4020 Problem Experience Overview 3 1 Where Problems are likely to Reside 3 1 Troubleshooting Difficulty 3 1 General Issues 3 2 Problems Associated with Assembly Dis Assemb...

Страница 4: ...d Wing Power Supply I O Connectors 2 12 Table 2 8 636 289 Black Hawk Power Supply I O Connectors 2 12 Table 4 1 Troubleshooting Chart 4 7 Table 5 1 Standard Slave Initialization Sequence 5 1 Figures Figure Description Page Figure 2 1 4020 System Block Diagram Universal Supply Installation 2 4 Figure 2 2 4020 System Block Diagram Intelligent Supply Installation 2 5 Figure 2 3 565 325 Master Control...

Страница 5: ...tep in troubleshooting a problem This document is divided into five Chapters 1 About this Document Describes this document s structure 2 Basic System Sub Assembly Describes the 4020 system Includes Block Diagrams and PCB layouts 3 4020 Problem Experience Describes commonly occurring problems based on Service repair experience 4 Troubleshooting Procedures Provides problem indications with their ass...

Страница 6: ...Controller can supervise the panel keypad and display operation status With 28V power the Master Controller can use its communications interface to supervise system status and control signal circuits in the event of an alarm condition The status of Monitor NAC Mapnet and Power Supply circuits is polled and reported back to the Master Controller upon demand The Master Controller evaluates Slave car...

Страница 7: ...ddress switch is set to device address 01 but the card also responds to Power Supply address 02 and Mapnet Channel 1 address 03 The pre designated 4020 System device address assignments are listed in Table 2 1 Table 2 1 4020 System Device Address Assignments Address System Device 0 Master Controller 1 Standard Slave board address setting 2 Power Supply software address only 3 Mapnet Channel 1 soft...

Страница 8: ... point supervision and signal circuit control The Master Controller 5V and 28V A tap power originates on the Power I O Interface and is daisy chained through the Standard Slave card The Master Controller Includes main 80196 microprocessor and memory Processes data from all other 4020 sub assemblies Controls operator keyboard piezo alarm and display interface Provides a programmer interface for dow...

Страница 9: ...P9 TB5 P8 P5 MAPNET 36V 0V 5V 28V 0V P2 BATTERY HARNESS AC POWER STATUS CONTROL STATUS CONTROL 28 UPS COMM POWER 28 5 0V P2 P4 P3 36V TO OPTION BOARD J1 P7 COMM POWER TO OPTIONS 28V 0V CHARGER RED BLK YEL TB1 OPTION INTERFACE P9 TB1 H1 H3 P1 TB2 A TAP TB3 B TAP TB4 C TAP PMSI LOOP PLUG Figure 2 1 4020 System Block Diagram Universal Supply Installation 4020 Master Controller Continued System Block ...

Страница 10: ... O 2 I O 3 I O 4 P6 P9 TB5 P8 P5 MAPNET 36V 0V 5V 28V 0V TB1 J1 BATTERY HARNESS AC POWER STATUS CONTROL SUPPLY CONTROL MONITOR COMM POWER 28 5 0V P8 P2 P9 36V TO OPTION BOARD P1 P7 COMM POWER TO OPTIONS J3 AC MONITOR 24 UPS A B TAPS J1 J2 P5 P5 P7 P7 A TAP B TAP Figure 2 2 4020 System Block Diagram Intelligent Supply Installation 4020 Master Controller Continued System Block Diagram Intelligent Su...

Страница 11: ...2 Selects U18 size JW1 OUT JW2 OUT 2 Meg JW1 OUT JW2 IN 4 Meg P1 Keypad connector P2 Power Comm Connector to Slave P3 CFIG Download Programmer Port P4 City Circuit Jumpers P5 CFIG Flash Programming Jumper Enable Flash Programming 1 2 Disable Flash Programming 2 3 P6 Carrier Detect TXD Enable 1 2 Normal 2 3 Modem P7 RAM Battery Jumper normally 1 2 Continued on next page 4020 Master Controller Conti...

Страница 12: ...ite jumpers Part No 740 769 The Standard Slave Includes interface for Master Controller communications Controls the single Mapnet channel provides 4 hard wired I O points Controls the Power Supply via a parallel bus Power I O Interface Includes switch SW1 for Slave Card address SW2 for battery selection Receives 5V 28V 36V DC power from Power I O Interface 28V I O Circuit 36V Mapnet power control ...

Страница 13: ...size JW1 IN JW2 OUT 32K JW1 OUT JW2 IN 64K SW1 Communication 1 7 ON 8 OFF Address 01 Baud rate 9600 SW2 Batteries selection Standard 1 3 ON 4 OFF for lead acid battery P1 P4 I O Configuration Plugs P5 5V and 28V Power Input From Power I O Interface P6 P7 System Comm Coded Bus and 5V 28V To Master Peripheral Cards P8 36V Mapnet Power Connector P9 Interface Connector for Power I O Interface Card Com...

Страница 14: ...rol Jumper plugs enable current limiting Tap Voltages Ground fault detection is also performed on this assembly The Power I O Interface Is the interface for power supply supervision control Converts 28 5V DC power to 5V 36V Includes A D converter for power supply voltage current supervision Monitors Power Supply trouble indications Two different Power I O Interfaces exist for specific usage 1 The ...

Страница 15: ... R139 P1 P2 J1 J2 P3 P4 P5 P6 P7 TB1 P8 P9 24 V A tap TB2 24 V B tap TB3 24 V C tap TB4 565 256 TB2 TB3 or TB4 Terminal Block 565 256 P2 or P3 Connector 565 220 P8 or P9 Connector 565 220 TB1 Terminal Block 565 256 P4 Connector 0 V 24 V System 5 V Std Slaves 0 V 3 6 2 5 1 4 565 220 P2 Connector 0 V 24 V System 5 V Std Slaves 0 V 4 1 5 2 6 3 Trouble Low Trouble 36 V Mapnet 0 V 4 3 2 1 Trouble Low T...

Страница 16: ...tap Enable J1 Standard Slave Interface Connector TB1 Option Interface TB2 A tap Output Connections TB3 B tap Output Connections TB4 C tap Output Connections R139 Battery Load resistor Power Cable Connections Red 28V Black 0V Yellow Charger Table 2 6 describes the I O connectors on the 565 220 Power I O Interface PCB Assembly refer to Figure 2 6 for the location of these connectors Table 2 6 565 22...

Страница 17: ...erface PCB assembly 2 636 289 Power Supply Black Hawk or 636 370 w charger adapter 565 222 Standard Slave PCB with U11 741 008 software 565 220 Power I O Interface Caution DO NOT OPEN switcher The switcher is not field serviceable and contains lethal high voltage Table 2 7 describes the I O connectors on the 636 341 Power Supply Gold Wing Supply Table 2 7 636 341 Gold Wing Power Supply I O Connect...

Страница 18: ...occur during the system installation phase or during upgrades Many system problems appear to result from improper system wiring during installation or system upgrade Because of the individual sub assembly interaction what may appear to be a power supply problem may in fact be caused by a problem on either the Standard Slave or Power I O Interface assembly A great deal of system complexity has been...

Страница 19: ...r PCB assembly failures appear to be the result of electrostatic discharge ESD into the Master Controller ESD may be entering the system during the installation of the U8 flash device or from contacting the installed flash chip during connection of the download cable onto the adjacent P3 header connector Note Static electricity can damage components Use the following precautions Ground yourself be...

Страница 20: ...ad the technician into ordering the wrong Standard Slave replacement assembly with incompatible software The incorrect Standard Slave assembly then complicates system troubleshooting and repair Although the wrong Standard Slave Assembly should not cause damage the system will not initialize properly because of the software incompatibility Field service personnel have reported that lightning accoun...

Страница 21: ...rface damage when the system is turned on Once damaged movement of capacitor C12 can cause intermittent variation from its rated 330uf capacitance to less than 50nf This lack of capacitance damages the Power I O Board Mapnet 36V regulator and Standard Slave Mapnet Interface components This problem has only been observed on assemblies with the blue jacketed C12 Sprague capacitor If it is suspected ...

Страница 22: ... systems being configured for Audible Visible appliance horn and strobe operation on separate signaling circuits Remove any direct shorts between circuits multiple ground faults and all A V appliance power jumpers If these interconnections are not removed damage to the 10 ohm resistors occurs the first time that the alarm is sounded In addition to electrostatic discharge ESD Master Controller PCB ...

Страница 23: ...system peripheral devices The 28 volt A tap voltage is essential for panel sub assembly operation If the A tap power is lost the panel shuts down If you must use A tap power connect internal panel devices or steady load devices such as LCD Annunciators to this tap All relays should be suppressed Note Under no circumstances use the C tap This tap is reserved for the charger Any additional load may ...

Страница 24: ...does not work start by checking 5V power Tap voltages and 36V Mapnet power Refer to Figure 2 7 page 2 10 for information on locating voltage test points The typical selections on a Standard Slave PCB assembly are as follows Standard Slave Board 565 222 or 565 368 SW1 1 7 ON 8 OFF Address 01 Baud rate 9600 SW2 Batteries selection Standard 1 3 ON 4 OFF for lead acid battery I O configuration plugs s...

Страница 25: ...d Power I O Interface Card are required There are two look alike Standard Slave versions 565 222 and 565 368 The software populated in Standard Slave socket U11 is different for each version and will only operate properly with the appropriate power supply and Power I O card Note Software may have been swapped between these assemblies in the field without modifying the assembly designation and may ...

Страница 26: ...ns interface signals are necessary for the System Startup in Progress message to appear If the Master Controller is missing 28VDC there may be a steady panel alarm that can not be silenced and all cards may be listed as missing or failed 28V is required for communications between assemblies Perform the following checks Check the 28V power on the red 28V and black 0V leads that connect the supply t...

Страница 27: ...20 Field Wiring Diagram P N 841 842 Although not recommended sometimes power is pulled from the A tap which is normally already heavily loaded If A tap power is essential for external devices it should be fused the same as the B tap To check for a problem with the A tap measure both the A tap and the B tap voltage at the output terminals on the Power I O Interface board Both should read 28 5V 2V I...

Страница 28: ... Standard Slave interface ribbon cable for proper connection Check the Power I O enable jumpers Check for proper Standard Slave Power IO initialization The three Power I O Interface taps are all controlled by the Standard Slave microprocessor There are a series of tests that the software performs before the taps are turned on Refer to Table 5 1 page 5 1 for the software initialization sequence The...

Страница 29: ...s probably bad Verify that the Standard Slave processor is running see Verifying Standard Slave Processor Operation below A simple test can indicate whether or not the Standard Slave processor is running Changing the SW1 switch 1 position should cause the Standard Slave microprocessor to blink the trouble LED on and off see Figure 2 4 page 2 8 for the location of SW1 Note Be sure to reposition SW1...

Страница 30: ...ard Slave tests EPROM RAM and will hang if an error occurs Standard Slave checks AC power and battery voltage level and will hang on low levels A B C tap voltage levels are checked Check for 36V Mapnet voltage If voltage is present Standard Slave should be communicating with the Master Controller If a ground fault is being reported Check the following I O circuit wiring for ground faults Discolore...

Страница 31: ...ARD MISSING FAILED ABNORMAL message appears Check the communications line for a fluctuating voltage At the Master Controller a slight fluctuation between 26 to 27 VDC should be observed across MOV RV3 with a Fluke 75 or 87 digital voltmeter If a COMMUNICATIONS SHORT CIRCUIT TROUBLE message appears and no communications activity can be detected on RV3 the short is on the internal communications lin...

Страница 32: ...erter on the Power I O Interface board 13 Read battery voltage A D Sets a voltage good bit if 19 5V through the A D converter on the Power I O Interface board 14 If cold start AC good run on AC AC bad Battery good run on battery AC bad Battery bad restart Bad AC and Battery voltages at this point will hang the system Main voltage at red and black wires should be approximately 28 5V and green LED o...

Страница 33: ...e is working A B tap will come up C will not 21 Initialize Mapnet circuitry Internal setups Reset PCC etc 22 Turn on Mapnet voltage Picks K2 on Standard Slave 36V across Mapnet output terminals indicates Power Supply Power Supply I O Interface and Interface A D are probably OK 23 Initialize I O cards Check and set up I O parameters 24 Begin communicating with Master Controller If 36V exists at Map...

Страница 34: ...Rev A Simplex Time Recorder Co Simplex Plaza Gardner Massachusetts 01441 0001 U S A 574 771 ...

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