Simplex 4020 Troubleshooting Manual
Fire alarm system
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Also See for 4020:
- Operating instruction (80 pages) ,
- Operating manual (62 pages) ,
- Installation instructions manual (14 pages)
Table of Contents
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Table of Contents
Troubleshooting
Related Manuals for Simplex 4020
Summary of Contents for Simplex 4020
- Page 1 4020 Fire Alarm System System Troubleshooting Guide 574-771 Rev. A...
- Page 2 Copyright © 1998 Simplex Time Recorder Co. All rights reserved. Copyright and Trademarks Printed in the United States of America. Information in this document is subject to change without notice. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written consent of Simplex Time Recorder Company.
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Page 3: Table Of Contents
Description and Functions.............. 2-7 Application ..................2-7 Standard Slave PCB Layout............2-8 Standard Slave PCB Assembly I/O Connectors ......2-8 4020 Power I/O Interface ..............2-9 Description and Functions.............. 2-9 Application ..................2-9 Power I/O Interface PCB Layout ..........2-10 Power I/O Connector Voltage Points.......... - Page 4 Standard Slave Initialization Sequence Figures Figure Description Page Figure 2-1 4020 System Block Diagram (Universal Supply Installation) Figure 2-2 4020 System Block Diagram (Intelligent Supply Installation) Figure 2-3 565-325 Master Controller PCB Assembly Figure 2-4 565-222 & 565-368 Standard Slave PCB Assembly...
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Page 5: Chapter 1 About This Document
Chapter 1 About This Document Introduction This troubleshooting guide provides you with a basic understanding of the 4020 Fire Alarm Control Panel operation and suggestions for quickly finding and resolving problems. The primary goal is to provide a method by which you may troubleshoot the 4020 basic system assemblies: •... -
Page 6: Chapter 2 Basic System / Sub-Assembly
Chapter 2 Basic System / Sub-Assembly General Description The basic 4020 Fire Alarm Control Panel is comprised of four assemblies: • Master Controller (Part No. 565-325) • Standard Slave (Part No. 565-368 for Universal Supply installation 565-222 for Intelligent Supply installation) •... -
Page 7: Expansion Cards
Basic System/Sub-Assembly, Continued Expansion The basic 4020 Fire Alarm Control Panel is capable of supporting system expansion with peripheral cards. Although not discussed further in this troubleshooting document, the following list shows some of the supported expansion cards: • RS-232 Interface (Part No. 565-430) [supercedes 565-224] •... -
Page 8: 4020 Master Controller
Master Controller Functions 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 downloading configuration changes • Includes city circuit interface and contains a dry contact trouble circuit •... -
Page 9: System Block Diagram (Universal Supply)
+PMSI LOOP PLUG C TAP H1 – H3 +28V / 0V / CHARGER STATUS & CONTROL / +28 UPS (RED / BLK / YEL) POWER SUPPLY BATTERY HARNESS (636-341) AC POWER Figure 2-1. 4020 System Block Diagram (Universal Supply Installation) -
Page 10: System Block Diagram (Intelligent Supply)
POWER I/O INTERFACE (565-220) +36V TO OPTION BOARD A & B TAPS SUPPLY CONTROL & MONITOR AC MONITOR / +24 UPS A TAP POWER SUPPLY BATTERY HARNESS (636-289) B TAP AC POWER Figure 2-2. 4020 System Block Diagram (Intelligent Supply Installation) -
Page 11: Master Controller Pcb Layout
4020 Master Controller, Continued Master Controller PCB Layout U8 CFIG (Note Orientation) Figure 2-3. 565-325 Master Controller PCB Assembly Master Controller PCB Table 2-2 describes the I/O connectors on the Master Controller PCB Assembly Assembly I/O Connectors (refer to Figure 2-2 for the location of these connectors). -
Page 12: 4020 Standard Slave
• 636-289 Power Supply (Black Hawk) or 636-370 w/charger adapter • 565-220 Power I/O Interface PCB Note: 4020 is not approved by UL for 110AH batteries because of charger overheating and elevated temperatures within the cabinet. Continued on next page... -
Page 13: Standard Slave Pcb Layout
4020 Standard Slave, Continued Standard Slave PCB Layout JW1 JW2 Figure 2-4. 565-222 & 565-368 Standard Slave PCB Assembly Standard Slave PCB Table 2-4 describes the I/O connectors on the Standard Slave PCB Assembly Assembly I/O Connectors (refer to Figure 2-4 for the location of these connectors). -
Page 14: 4020 Power I/O Interface
4020 Power I/O Interface Description The Power I/O Interface circuitry permits the Standard Slave to supervise and control the Power Supply. A bi-directional 8 bit bus provides Standard Slave access to Power I/O Interface status and control registers. The Power I/O Interface assembly converts +28.5 volt A-tap power to 36V Mapnet power. -
Page 15: Power I/O Interface Pcb Layout
4020 Power I/O Interface, Continued RED BLK YEL Power I/O Interface PCB Layout R139 Figure 2-5. 565-256 Power I/O Interface PCB Assembly Figure 2-6. 565-220 Power I/O Interface PCB Assembly 565-256 P4 Connector 565-256 P2 or P3 Connector 565-256 TB2, TB3 or TB4 Terminal Block... -
Page 16: Table 2-5 565-256 Power I/O Interface Pcb Assembly I/O Connectors
4020 Power I/O Interface, Continued Power I/O Interface PCB Table 2-5 describes the I/O connectors on the 565-256 Power I/O Interface PCB Assembly I/O Connectors Assembly (refer to Figure 2-5 for the location of these connectors). Table 2-5. 565-256 Power I/O Interface PCB Assembly I/O... -
Page 17: 4020 Power Supply
4020 Power Supply Description The Switcher Power Supply converts 120/220/240VAC input line voltage into 28 volt DC power. The supply provides brownout detection status to the Power I/O Interface board. A relay permits the Standard Slave to select power from either the Power Supply or battery. -
Page 18: Overview
Chapter 3 4020 Problem Experience Overview This chapter presents 4020 problems experienced in the field and those analyzed by Service Repair. This information is arranged in three categories: • General Issues • Problems Associated with Assembly / Dis-Assembly and Installation •... -
Page 19: General Issues
Contractors should understand how to properly wire peripheral devices handling AC power. The fuse wiring harness (Part No. 733-731) referred to in the 4020 Field Wiring Diagram (841-842, sheet 22) is available to limit B-tap over-voltage damage.. Damage Caused by... - Page 20 In certain areas, transient protection is recommended for both outside field wiring and incoming AC power to the panel. For detailed information concerning how to protect Simplex systems refer to the Transient Suppression Methods for Simplex Equipment document (Pub No. GEN-11-006).
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Page 21: Problems Associated With Assembly/Dis-Assembly And Installation
Problems Associated with Assembly / Dis-Assembly and Installation LCD Annunciator Short Some back boxes have a conduit fitting mounted in the upper right-hand corner Circuit where it is possible to contact the rear of the P3 connector of the LCD Annunciator CPU Memory assembly (Part No. - Page 22 Problems Associated with Assembly / Dis-Assembly and Installation, Continued Damage to Standard Slave Multiple ground faults and mis-application of the Audible/Visible jumpers can Protective Resistors destroy the 10 ohm protective resistors (R35, R63, R70 and R77) on the Standard Slave PCB assembly. The A/V jumpers interconnect A/V appliance horn &...
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Page 23: Problems Associated With Power Supplies
Any additional load may cause over heating. Power Supply Trouble When a 4020 power supply Trouble indication occurs, the supply is typically the Indication first item replaced and often the supply is not, in fact, the cause of the Trouble. -
Page 24: Chapter 4 Troubleshooting Procedures
• Were any trouble indications being reported? • Was any other building equipment damaged by lightning or line transients? Determine if any portion of the 4020 system appears to be operational. Check the individual assemblies for signs of visible damage. -
Page 25: Power
• Software EPROM 741-008 plugged into U11 on Standard Slave Verifying the Correct Two versions of the 4020 system were produced. The chassis version dictates Replacement Standard Slave which specific Power Supply and Power I/O Interface Card are required. There Card are two look-alike Standard Slave versions: 565-222 and 565-368. - Page 26 Troubleshooting Procedures, Continued If the Master Controller comes up with a “System Startup in Progress” message, Verifying if the Master it is probably working properly. Error codes are usually an indication of a Controller is Operational significant Master Controller problem. Not much can be done in the field except for replacing the U8 Master Controller CFIG flash chip, Master Software U9, SRAM U15 or the entire assembly.
- Page 27 Normally, power for devices located outside of the panel is provided by the B-tap and this line should be fused as described in the 4020 Field Wiring Diagram P/N 841-842. Although not recommended, sometimes power is pulled from the A-tap, which is normally already heavily loaded.
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Page 28: Standard Slave Initialization
Troubleshooting Procedures, Continued Checking for a B-tap Problem The measured voltage at the B-tap output terminals on the Power I/O Interface board should be 28.5V ±.2V. If the B-tap is not the correct voltage there is probably a power initialization problem. If only the four basic boards are installed in the system: (Master Controller, Standard Slave, Power I/O Interface and Power Supply), check the Universal Switcher Power Supply for proper operation first --... - Page 29 Troubleshooting Procedures, Continued If there is no 36V Mapnet No 36V Mapnet output indicates the Standard Slave is not completing the power output and no A-tap voltage initialization procedure. It could be unable to access the A/D converter on the Power I/O Interface, or the microprocessor itself may have failed.
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Page 30: Troubleshooting Chart
Troubleshooting Procedures, Continued Troubleshooting Chart Table 4-1 shows several indications of problems with potential causes associated with each. Table 4-1. Troubleshooting Chart Indication of Problem Areas to Check If the LCD display and LED indicators Check the primary AC power and battery voltage all appear to be without power If the primary AC power is within the Check to see that the tap voltages are available... - Page 31 Troubleshooting Procedures, Continued Table 4-1. Troubleshooting Chart (continued) Indication of Problem Areas to Check If panel alarm is sounding continuously Check for the 28.5V A-tap voltage into the Master Controller with no relays clicking If panel alarm is sounding and relays Check the following: •...
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Page 32: Chapter 5 Standard Slave Software Initialization
Standard Slave Initialization The following sequence is documented F EFERENCE Sequence On start-up, the 4020 Standard Slave Card performs the checks shown in Table 5-1. Table 5-1. Standard Slave Initialization Sequence Card Operation Description and Remarks 1. Check for warm or cold start ----- 2. - Page 33 Standard Slave Software Operation, Continued Table 5-1. Standard Slave Initialization Sequence (continued) Card Operation Remarks 19. Turn on taps If there is 28.5V at the A & B Taps, 27.6V at C (If charger is enabled) this indicates the software completed the preceding steps.
- Page 34 Rev. A 574-771 Simplex Time Recorder Co. Simplex Plaza Gardner, Massachusetts 01441-0001 U.S.A.
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Questions and answers
I have a 4020 panel that gives me a message on the card 3 map net voltage disappears communication abnormal and power supply on the standard slave board what could be my problem
A communication abnormal message and power supply issue on a Simplex 4020 panel's Card 3 MAPNET voltage could be caused by:
1. An internal short circuit on the communication lines—if no communication activity is detected on MOV RV3 and a "COMMUNICATIONS SHORT CIRCUIT TROUBLE" message appears, it indicates an internal short.
2. An external field wiring problem—if communication activity is present but issues persist, the problem lies in external wiring.
3. A failed or missing voltage across MOV RV3—if voltage fluctuates only slightly between 26 to 27 VDC, it may indicate a failed component or supply issue.
4. A faulty board—if no faults are found in wiring or voltages, board replacement may be needed, starting with the Standard Slave, then Power I/O Interface, Master Controller, and Power Supply.
This answer is automatically generated