TWR Lighting D-1LVS User manual

M.2016.D.D-1LVS
10-14-08 – REV 6-23-16
10810 W. LITTLE YORK RD., #130 - HOUSTON, TX 77041-4051
VOICE [phone] - FAX [phone]
web: www.twrlighting.com
IMPORTANT!!!
PLEASE TAKE THE TIME TO FILL OUT THE FORMCOMPLETELY. FILEIN
A SAFE PLACE. IN THE EVENT YOU EXPERIENCE PROBLEMS WITHOR
HAVE QUESTIONS CONCERNING YOUR CONTROLLER, THE
FOLLOWING INFORMATION IS NECESSARY TO OBTAIN PROPER
SERVICE AND PARTS.
MODEL # D-1LVS
SERIAL #
PURCHASE DATE
PURCHASED FROM

D-1LVS CONTROLLER
M.2016.D.D-1LVS
10-14-08 – REV 6-23-16
TABLE OF CONTENTS
1.0 INTRODUCTION................................................................................................................. 1
1.1 APPLICATION........................................................................................................ 1
1.2 SPECIFICATIONS OF EQUIPMENT ..................................................................... 1
2.0 INSTALLATION.................................................................................................................. 2
2.1 POWER SUPPLY CONTROL CABINET MOUNTING.......................................... 2
2.2 PHOTOCELL HOUSING........................................................................................ 2
2.3 PHOTOCELL WIRING ........................................................................................... 2
2.4 POWER WIRING.................................................................................................... 3
2.5 TOWER LIGHTING KIT.......................................................................................... 3
2.5.1 Beacon Mounting...................................................................................... 3
2.5.2 Lighting Kit Wiring.................................................................................... 4
2.6 ALARM WIRING..................................................................................................... 4
2.6.1 Alarm testing ............................................................................................. 4
2.6.2 Strobe Failure (SF).................................................................................... 4
2.6.3 Power Failure (PF) .................................................................................... 5
2.6.4 Photocell (PC)............................................................................................ 5
2.7 CONTROLLER CONFIGURATION ....................................................................... 5
3.0 THEORY OF OPERATION................................................................................................. 6
3.1 THE POWER SUPPLY........................................................................................... 6
3.2 THE FLASHTUBE .................................................................................................. 6
3.3 TIMING CIRCUIT.................................................................................................... 7
3.4 TRIGGER CIRCUIT................................................................................................ 7
3.5 ALARM CIRCUITS ................................................................................................. 7
3.5.1 Strobe Failure (SF).................................................................................... 7
3.5.2 Photocell (PC)............................................................................................ 8
3.6 BLEEDER CIRCUIT ............................................................................................... 8
3.7 STROBE DIAGNOSTIC CIRCUITS ....................................................................... 8
3.7.1 Control Power On ..................................................................................... 8
3.7.2 High Voltage.............................................................................................. 9
3.7.3 Trigger Voltage.......................................................................................... 9
3.7.4 Nightmode ................................................................................................. 9
3.7.5 Primary Timing.......................................................................................... 9
3.7.6 Timing Signal Verify.................................................................................. 9
3.7.7 Flash Verified........................................................................................... 10
3.7.8 Strobe Fail Test....................................................................................... 10

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4.0 TROUBLESHOOTING ..................................................................................................... 11
4.1 TOOL REQUIREMENTS...................................................................................... 11
4.2 DIAGNOSTIC EVALUATION ............................................................................... 11
4.3 TROUBLESHOOTING ASSISTANCE................................................................. 12
4.3.1 Flash Verify LED - Out............................................................................ 12
4.3.2 Control Power On LED - Out.................................................................. 12
4.3.3 Primary Timing LED Out......................................................................... 13
4.3.4 False or Nonexistent Beacon Alarms................................................... 13
5.0 MAINTENANCE GUIDE ................................................................................................... 14
5.1 FLASHTUBE REPLACEMENT............................................................................ 14
5.2 POWER SUPPLY................................................................................................. 14
5.3 PHOTOCELL........................................................................................................ 14
6.0 MAJOR COMPONENTS PARTS LIST............................................................................ 15
7.0 RECOMMENDED SPARE PARTS LIST.......................................................................... 17
WARRANTY & RETURN POLICY
RETURN MERCHANDISE AUTHORIZATION (RMA) FORM

D-1LVS CONTROLLER
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APPENDIX
CHASSIS COMPONENT LAYOUT........................................................H40-283 (REV F)
SCHEMATIC LAYOUT .........................................................................M01-283 (REV B)
HOUSING DETAILS D-1LVS ...............................................................HD0-283 (REV B)
INSTALLATION GUIDELINE...............................................................................INS-283
PHOTOCELL HOUSING DETAIL...........................................................100239 (REV H)
TOWER LIGHTING KIT - CABLE............................................................500-12 (REV B)
CONTROL PCB #1.............................................................................H01-226B (REV F)
HIGH VOLTAGE RECTIFIED PCB #2 ...............................................H02-226A (REV A)
RELAY PCB #3..................................................................................... H03-226 (REV B)
STROBE BEACON DETAIL...................................................................100437 (REV G)
WRAPLOCK FASTENING DETAIL...................................................................... 100984

D-1LVS CONTROLLER
M.2016.D.D-1LVS
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1.0 INTRODUCTION
The TWR Lighting®, Inc. (TWR®) Model D-1LVS Type L-865Controllerhas been designed
andbuiltto the FederalAviationAdministration’s(FAA)AdvisoryCircular150/5345-43Gwith
safety and reliability in mind. TWR®is committed to providing our customers with some of
thebest products and servicesavailable. TWR®welcomesyoutoourfamilyoffineproducts
and we look forward to servicing your needs now and in the future.
1.1 APPLICATION
The D-1LVS L-865 Controller is for use on lighting structures or towers that are
approved to be lighted with Medium IntensityStrobes in accordancewith the FAA’s
Advisory Circular 70/7460-1K. Structures from 201' to 350' may be lighted with
Medium Intensity lights. NOTE: Structures exceeding 500' will require to be
painted in addition to this lighting for added visual hazard marking.
1.2 SPECIFICATIONS OF EQUIPMENT
Dimensions:
Controller (HxWxD)/Weight 18.0"x16.0"x9.25" 45.0 lbs.
Mounting Dim (HxW) 18.74"x12"
Beacon Height/Weight 17.25" 21 lbs.
Cable Diameter/Weight Per 100 ft. .625" +/- 10% 24 lbs.
Electrical 120V AC +/- 10% 60 Hz (Standard)
240V AC +/- 10% 60 Hz (Available)
Intensity:
Daymode 20,000 +/- 25% Effective Candelas
Nightmode 2,000 +/- 25% Effective Candelas
Beamspread:
Horizontal 360°
Vertical 3°minimum
Flash Rate:
Daymode 40 fpm +/- 2 fpm
Nightmode 40 fpm +/- 2 fpm
Wattage:
Daymode 95 Watts
Nightmode 35 Watts
Temperature: +55°C / -55°C
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2.0 INSTALLATION
2.1 POWER SUPPLY CONTROL CABINET MOUNTING
The power supplycontrolcabinet can be located atthe base of the structure or inan
equipment building. Mounting Dimensions can be found in Section 1.2, on page 1.
Pay particular attention when choosing your controller mounting location to ensure
proper door opening and room for service personnel. Refer to installation drawing
HDO-283, for ease of install.
2.2 PHOTOCELL HOUSING
The standard photocell housing is supplied with a 20' pigtail of 16 AWG Type TFFN
wire. On occasion, in mounting of the photocell, an additional amount of wire may
be required. Refer to drawing 100239, for proper assistance on determining gauge
of wire for your specific needs.
2.3 PHOTOCELL WIRING
(Refer to Drawings HD0-283, and H40-283)
If the control cabinet is mounted inside an equipment building,the photocellshould
be mounted vertically on ½” conduit outside the building above the eaves facing
north. Wiringfromthephotocellhousing socketto thecontrolcabinetshouldconsist
of one each; red, black, and white wires. The white wire is connected to the socket
terminal marked “N,” the black wire is connected to the socket terminal marked“Li,”
and the red wire is connected to the socket terminal marked “Lo.” The photocell
should be positioned so that it does not “see” ambient light, which would prevent it
from switching to the nightmode.
If the control cabinetis mounted outside an equipmentbuilding,thephotocellshould
be mounted vertically on ½” conduit so the photocell is above the control cabinet.
Caremustbe taken to assurethatthe photocelldoes not “see”anyambientlightthat
would prevent it from switching into the nightmode. The photocell housing socket
wiring is the same as above.
2.3.1 Connect the BLACK wire from the photocell to TB1-8.
2.3.2 Connect the RED wire from the photocell to TB1-6.
2.3.3 Connect the WHITE wire from the photocell to TB1-7.
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2.3.4 Installthephotocellintothe receptacleandtwisttotherightwhiledepressing
to lock into place.
2.4 POWER WIRING
(Refer to Drawing H40-283)
Power wiring to the control cabinet should be in accordance with local methods and
the National Electric Code (NEC).
2.4.1 A 15 amp circuit breaker is recommended at service panel.
2.4.2 Connect the “HOT” side of the 120V AC line to TB1-9.
2.4.3 Connect the “NEUTRAL” side of the 120V AC line to TB1-10.
2.4.4 Connect the AC ground to the ground stud to the lower right of the terminal
block TB1.
2.4.5 Controller panel should be connected to tower and/or building grounding
system with the exception of installations on AM/RF Applications where
controllergrounding to earthgroundis prohibited. Groundthecontrolleronly
to the tower itself using a suitable RF ground.
2.5 TOWER LIGHTING KIT
When installing this system, the customer will need to use strobe cable to wire the
strobe beacon. Refer to Lighting Kit Drawing 500-12 for cable installation.
2.5.1 Beacon Mounting
(Refer to Drawing HDO-283)
2.5.1.1 Bolt the beacon to the mounting plate using four 5/8" x 1 1/2"
galvanized bolts that are supplied. Installer should make sure to
check for full thread engagement on Anco locknut. Allow 18"
clearance in back of the hinge (25" from the center of the base)
to tilt lens back without hitting an obstruction.
2.5.1.2 Level the beacon using the level at the base of the lens. Shims
may be used under beacon base or triple nutting each bolt with
palnuts on all four (4) nuts.
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2.5.2 Lighting Kit Wiring
Install wiring between the controller and the beacon utilizing strobe cable
method. (TWR LIGHTING CANNOT WARRANTY SYSTEMS THAT
EMPLOY SPLICING CABLE.) Refer to drawings HDO-283 and 500-12
for install of lighting kits. Follow these minimum guidelines as well as any
local or end user addition requirements. Installing lighting kits will require
lifting of the cable by the supplied cable grip or conduit to affix to the tower.
Always work safely and adhere to all OSHA Safety Guidelines when lifting
wiring or working on the structure or tower itself. It is the installer’s
responsibilityto installthe lightingkit in a safe manner. Installers canrequest
from OSHA their requirements 29CFT 1926.21, and 29CFR 1926.105 to
ensure compliance to regulations.
NOTE:On occasion a set of custom lighting kit drawings may be
specifically requested by a customer and installed in this manual. In
cases such as this, the drawings will precede the manual if a conflict
occurs.
2.6 ALARM WIRING
Individual alarm contacts (Form C) are provided for strobe failure, power failure and
photocell on. It is left up to the customer or installer on how they choose to utilize
these contacts with theirmonitoring equipment. Alarm configurations areshown on
drawing H40-283.
2.6.1 Alarm testing
To test alarms, follow these procedures using an“ohm”meter between alarm
common and alarm points.
2.6.2 Strobe Failure (SF)
Strobe failure testing can be performed in either day or nightmode strobe
operation. Checkforstatusof strobebeacon. TurnonswitchS1 on PCB#1
and status should change after an eight (8) second delay. After test,switch
S1 to normal operating position.
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2.6.3 Power Failure (PF)
While the controller is in normal operation, shut off power to the controller at
the breaker panel. Alarm should be prompt. Reset breaker to resume
normal operation.
2.6.4 Photocell (PC)
Controller should be in the daymode of operation when performing this test.
Check status of operation. Turn SW3 on or cover the photocell and alarm
status should change state. After testturn SW3 to normaloperatingposition.
2.7 CONTROLLER CONFIGURATION
(Refer to Drawing H01-226B)
This unit is factory set-up to be a master controller. If this unit is to be used in
conjunction with an additional unit, change dipswitch settings (DS1) as drawing
indicates.
2.7.1 Connect at least an18/20 gauge wire from the master unit D1LVS PCB #1,
P1, Position 15, to D1LVS slave unit PCB #1, P1, Position 15. Refer to
drawing H40-283.
2.7.2 Connect another 18/20 gauge wire, along with the existing wire, into SSR1,
Position 6, of P2, of the master unit.
2.7.3 Remove the existing wire, SSR1, from Position 6, P2, of the slave unit and
capoff.
2.7.4 Connect the 18/20 gauge wire from (Note: 2.7.2) the master unit to Position
6, P2, of the slave unit.
2.7.5 Only one (1) photocell is needed, and is to be connected to the master unit.
2.7.6 Connect at least an 18/20 gauge wire (ground) from one (1) chassis to the
other chassis.
2.7.7 Both controllers must be connected to the same phase of power supply.
2.7.8 Follow standard instructions provided in the manual supplied with the
controller.
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3.0 THEORY OF OPERATION
3.1 THE POWER SUPPLY
The AC line is sent to transformer T1 through fuse F1 and relayK1. In order for K1
to energize and complete the circuit to T1, the safety interlock switch CSS, BSS,
must be closed. The BSS switch is located in the base of the beacon. In order for
the system to operate, the beacon and the power supply must be closed and
secured.
Transformer T1 secondaryoutput is around 1,000V AC. These outputs are sent to
the high voltage rectifier PCB (PCB #3) and converts the 1,000V AC of the
transformer to around +500V DC and -500V DC in daymode and +700V DC and -
550VDC innightmode. This high voltageisthen usedtocharge the energystorage
capacitorC102throughcurrentlimitingresistorR31steeringdiodeD5fornightmode
operation. Resistor R31 is by-passed through relay K5 for daymode operation.
Energy storage capacitors bank C103-109 is used for the daymode operation and
are connected to the high voltage through the normallyclosed contacts of relayK5.
When the lightleveldrops below 3 foot candles,photocell6390-FAA2supplies120V
AC to relayK5, which removes C103-109 fromthe discharge pathleavingcapacitor
C102 in the circuit for nightmode operation.
The energy storage capacitor bank is connected to the flashtube through the
interconnecting tower wiring.
3.2 THE FLASHTUBE
The flashtube FT is a quartztube containing two (2)electrodes each. The electrode
atthepositive(+)endis calledthe Anode and isconnected tothepositivesideofthe
storage capacitors through inductor L1. The electrode at the negative (-) end of the
tube is called the Cathode and is connected to the negative side of the energy
storage capacitors banks.
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The flashtube contains a gas called Xenon. When the high voltage energy in the
storagecapacitorsisconnected totheflashtube, nothing willhappensinceXenonin
its natural stateis nota conductorof electricity. However,whena veryshortduration
high voltage pulse is impressed on the trigger element of the tube (via the power
supplyand trigger transformer T4) the Xenon gas is ionized and therebybecomes a
good conductor of electricity. This allows the electrical energy in the storage
capacitors to discharge rapidlythrough the flashtube, which converts this energyto
lightenergyand heat energy. When thevoltagestoredin the capacitorsdischarges
to a low level the Xenon gas can no longer sustain conduction and since the short
trigger pulse is gone by this time, it deionizes returning to its non-conducting state
until another trigger pulse arrives to repeat the process. Meanwhile, the storage
capacitor is being recharged by the transformer and the high voltage rectifier.
3.3 TIMING CIRCUIT
The timing circuit is contained entirelyon printed circuitboard #1. The timing circuit
has its own power supply. Thiscircuitconverts theAC line voltage toapproximately
12V DC, which is used to supplyall of the components in thiscircuit. Ituses this low
voltage DC to generate pulses that control the flash rate of theflashtube. Itactually
generates two (2) groups of pulses. The first is a pulse approximately once every
1.4 seconds to operate the flashtube during the daylight hours. The second is a
burst of 10 or more veryrapid pulses (to elongate the apparent flash) everyflash to
operate the flashtube during the nighttime hours at reduced flash energy.
3.4 TRIGGER CIRCUIT
The trigger circuit is supplied by one (1) of transformer T1's secondary windings.
The 300V AC is converted to DC, which is stored in a storage capacitor much like
the action of the high voltage circuit. The main difference is that the storage
capacitor is much smaller. The trigger circuit receives the pulses generated bythe
timing circuit. It releases its stored energy with each pulse and delivers it to the
flashtube’s trigger element to initiate each flash.
3.5 ALARM CIRCUITS
3.5.1 Strobe Failure (SF)
Strobe Failure alarm circuit monitors each flash of the flashtube within each
beacon. If the flashtube fails to flash (for any reason), the alarm circuit
operates a relay (on PCB #1) that the customer can connect to their alarm
transmitting devices. The alarm point can be accessed on J2 on PCB #1.
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The power failure alarm relayis energized during normaloperation. Should
the powerbe removed for anyreason, then relayK6 would drop,creating an
alarm for the customer alarm transmitting device.
3.5.2 Photocell (PC)
The photocellalarmrelayisenergizedwheneverthe photocellorSW3 ison.
This relay will allow the customer to monitor the modes of operation to
determine if switch from day to nightmode has occurred.
3.6 BLEEDER CIRCUIT
The bleeder circuit is the most important safety item in this system. It consists of
resistorR32 connected tothehighvoltagestoragecapacitorthroughrelayK2.When
the AC line voltage is turned off, relays close allowing the resistors to discharge the
high voltage stored in the capacitor bank below 50V in 30 seconds.
***CAUTION***
NEVER RELY ON THIS CIRCUITTO RENDER THIS SYSTEMHARMLESS. ANY
DEFECT IN THIS CIRCUIT COULD ALLOW A HAZARDOUS HIGH VOLTAGE
CHARGE TO REMAIN ON THE STORAGE CAPACITORS. ALWAYS WAIT AT
LEAST 30 SECONDS AFTER POWER HAS BEEN TURNED OFF BEFORE
STARTING ANY WORK ON THIS SYSTEM. ALWAYSMEASURE THEVOLTAGE
ON THE STORAGE CAPACITORS WITH A VOLTMETER BEFORE STARTING
ANY OTHER WORK ON THIS SYSTEM. NEVER ATTEMPT TO DEFEAT THE
SAFETY INTERLOCKS.
3.7 STROBE DIAGNOSTIC CIRCUITS
The diagnostic circuit is provided as a means of making system checks and
maintenancemoreconvenient. Thiscircuitisentirelycontainedontheprintedcircuit
boards PCB #1 and PCB #2. The circuits that are contained on PCB #1, and PCB
#2 are as follows:
3.7.1 Control Power On
Line from the 120V AC input is sent through safety switches CSS and BSS
isolation transformerT2,fuse F3,and relayK1 to PCB #1. Once thisvoltage
isat PCB #1,it is sent to a step downtransformerandis rectifiedthensentto
LED4 (D15). If for any reason power is interrupted, (beacon opened,
controller door open, blown F3 fuse, failed relay, etc.) LED4 would be
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3.7.2 High Voltage
The Cathode side of the high voltage HV is routed through current limiting
resistor. When the unitisin daymode,D14 willbe at fullbrightnesswhenthe
capacitors are at full charge, but dims with the discharging of the storage
capacitors. A constant intensity indicates that high voltage is present but
capacitors are not discharging (check other indicators for fault). When the
red LED fails to glow, then high voltage is no longer present.
3.7.3 Trigger Voltage
The trigger voltage from fuse F2 (CT1A) is sent to current limiting resistor
R30 and LED6 (D20). Under normal circumstances, the red LED should be
at full intensityindicating voltage to be normal. Anabsence of this indication
means that the voltage is no longer present.
3.7.4 Nightmode
Output voltage from the photocell (SSR) is connected to the coil of relay
RLY1. Whenever the photocell senses darkness or switch SW3 is on, relay
RLY1 will energize thereby sending 12V to the timing circuit as well as to
LED7, letting LED7 (D7) glow a constant red.
3.7.5 Primary Timing
The primary timing pulses are received at LED8 (D3). LED8 will flash
accordingtothe pulses receivedfromthe timingcircuit. IfLED8failstoflash,
then the primarytiming circuit has failed. Check LED9 for secondarytiming
operation. The strobe unit should produce 40 (+/-2) pulses per minute.
3.7.6 Timing Signal Verify
Timing pulses (either primary or secondary) are received at LED9 (D28).
The LED will flash according to the pulses received from the timing circuit,
but should be 40 +/-2 FPM. In the unlikely event that this LED is out, then
total timing failure has occurred.
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3.7.7 Flash Verified
Current from the Cathode side of the flashtube (FTC) is sent through the
current sensing transformer T1 on PCB #1. T1 will send a pulse to the gate
of the SCR’s Q2 and turns it on. Capacitor C11 via Q2 will send voltage to
LED5 (D8). After each confirmed flash, LED 5 will blink. Absence of a
blinking LED signifies that strobe beacon has ceased to flash.
3.7.8 Strobe Fail Test
Switch S1, whenturned on,cuts off the timingsignal to the trigger circuitand
illuminatesLED2 (D25). Atthistimea strobe alarmshouldbereceivedatJ2.
The normal position of S1 is off (switch upward).
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4.0 TROUBLESHOOTING
Much of the troubleshooting of this systemwill consist of correcting a “beacon out”situation.
There may also be a failure mode where the flashtube is still flashing, but atthe wrong rate
or the wrong intensity.
You must study and understand the safety messages and the theory of operation before
attempting any service on this system. Servicing this system must be done by qualified
personnel only.
***W A R N I N G - H I G H - V O L T A G E***
THIS SYSTEM OPERATES ATHIGH VOLTAGE LEVELS THAT COULD BE LETHAL TO
SERVICE PERSONNEL. ALL INSTALLATION AND MAINTENANCE WORK SHOULD BE
DONE BY QUALIFIED SERVICE PERSONNEL. READ AND UNDERSTAND THE
THEORY OF OPERATION AND ITS SAFETY MESSAGES BEFORE ATTEMPTING
INSTALLATION OF THIS SYSTEM. DO NOT ATTEMPT TO DEFEAT THE INTERNAL
SAFETY DEVICES.
4.1 TOOL REQUIREMENTS
In order to be prepared to troubleshoot or repair this system, a minimum amount of
tools and equipment will be required. A recommendation list includes:
1) 5/16 Electrician’s Screwdriver
1) Nut Drivers or Socket Set
1) Multi meter - Analog or Digital 600V AC/600V DC Minimum
4.2 DIAGNOSTIC EVALUATION
The firststepin troubleshooting of thissystemor performingannualmaintenancewill
require the technician to open the controller door. With the power off to the
controller, the technician should look overthe controller circuitand repair orreplace
any apparent problems such as loose wire connections or corroded terminations.
After the initial visual checks have been completed, restore power to the controller
and pull out on the plunger of the cabinet safety switch (CSS) located at the lower
right edge of the enclosure. Observe at this time the LEDs located on PCB #1 and
PCB #2. Determine by observation of these LED indicators if the controller is
performing to normal operation.
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LEDs on PCB #1 are numbered from top to bottom 1-9. LEDs on PCB #2 are
numbered from top to bottom D14 - D16. The following chart will indicate normal
LED operation.
INDICATOR OPERATION NORMAL STATUS
LED 1 Flash Verify 2 N/A
LED 2 Strobe Fail Test Normal OFF/Flashes in Test Mode
LED 3 Flash Verify 1 Blinks
LED 4 Control Power ON Steady ON
LED 5 Flash Verify 3 N/A
LED 6 Trigger Voltage Steady ON
LED 7 Nightmode Steady ON During Nightmode Operation
LED 8 Primary Timing Flashing
LED 9 Timing Verify Flashing
D11 High Voltage #1 Steady ON when Voltage Above 50V DC
D12 High Voltage #2 N/A
D13 High Voltage #3 N/A
4.3 TROUBLESHOOTING ASSISTANCE
4.3.1 Flash Verify LED - Out
4.3.1.1 Observe high voltage LED on the same beacon circuit to
determine if it is available. If the LED is dim or out completely,
then check high voltage capacitor bank for a short. If no
capacitor is found to be shorted, check the resonant cap for a
short. If the resonant cap is okay, replace PCB #2. If the LED is
at full illumination, go to the next step.
4.3.1.2 Check the status of the trigger LED. If LED is dim or off, check
fuse F2. If blown, replace with exact type of fuse. If the fuse
blows again,replace PCB #1. If LED is okay, go to the next step.
4.3.1.3 If steps 4.3.1.1 and 4.3.1.2 check out okay, relamp the beacon.
4.3.2 Control Power On LED - Out
Check interlock circuit for an open circuit. If open, make the necessary
repairs. If okay, check fuse F3. Replace if bad.
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4.3.3 Primary Timing LED Out
Observe the status of the timing LED. If the LED is dim or out completely,
check LED9, if dim or out, replace PCB #1. If one or both are lit, you should
have timing.
4.3.4 False or Nonexistent Beacon Alarms
4.3.4.1 If alarms trip when the system appears to be working normallyor
fails to show an alarm when there is an obvious failure, replace
PCB #1.
4.3.4.2 The timedelaybetweenan actualfailureand thepointwherethe
relaytripsispresetat the factoryat about eight(8)seconds. This
delay period can be tested by turning “on” switch S1 (on the
circuit board #1). When this switch is in the alarm test mode,the
test mode indicator (LED2) will be illuminated or blinking slightly.
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***W A R N I N G - H I G H - V O L T A G E***
THIS SYSTEM OPERATES AT HIGH VOLTAGE LEVELS THAT COULD BE LETHAL TO
SERVICE PERSONNEL. ALL INSTALLATION AND MAINTENANCE WORK SHOULD BE DONE
BY QUALIFIED SERVICE PERSONNEL. READ AND UNDERSTAND THE THEORY OF
OPERATION AND ITS SAFETY MESSAGES BEFORE ATTEMPTING INSTALLATION OF THIS
SYSTEM. DO NOT ATTEMPT TO DEFEAT THE INTERNAL SAFETY DEVICES.
5.0 MAINTENANCE GUIDE
5.1 FLASHTUBE REPLACEMENT
The only required maintenance needed to be performed is the replacement of the
flashtubeseverytwo(2)years. Byfollowingtheseinstructions,maximumsafetyand
performance can be achieved.
5.1.1 Loosen the single quick open bolt located on the hinge assembly so that it
can recline.
5.1.2 Open the lens and tilt it backward.
ALWAYS WAIT AT LEAST 30 SECONDS AFTER OPENING THE BEACON
BEFORE STARTING ANY WORK ON THE BEACON.
5.1.3 Loosen the three (3) socket screws with a screwdriver to remove lamp.
5.1.4 Install the new flashtube making sure that the pins are aligned with the
socket. Make sure tube is flush on socket.
5.1.5 Tighten the socket screws snug, then 1/4 turn more.
5.1.6 Close the lens - make sure nothing hampers safety interlock action.
5.1.7 Re-tighten the single quick open bolt on the beacon.
5.2 POWER SUPPLY
No scheduled maintenance is required. Perform on an as needed basis only.
5.3 PHOTOCELL
The photocell is a sealed unit. No maintenance is needed or required other than
replacement as necessary. 14

D-1LVS CONTROLLER
M.2016.D.D-1LVS
10-14-08 – REV 6-23-16
6.0 MAJOR COMPONENTS PARTS LIST
SCHEMATIC TAG # DESCRIPTION TWR PART #
BSS1 BEACON SAFETY SWITCH STJ02003
C103 - C109 40uf 1KV CAP STB99006
C102 3uf 660V AC CAP STB99008CSI
C101 3uf 660V AC CAP STB99008CSI
CSS CABINET SAFETY SWITCH STJ02001
F1 10 amp FUSE KTK10
F2 1/8 amp FUSE FLQ 1/8
F3 .5 amp FUSE FUSE .5
FT FLASHTUBE STFLSHTB5
K5, K1, K4 DPDT OCTAL RELAY KRPA11AG120V
K6 SPDT OCTAL RELAY KRPA5AG120V
K2 HV BLEEDER RELAY STJ10006
L1 INDUCTOR INDCTR3001
L11 BURSTING CHOKE 100273
MOV1, MOV2 METAL OXIDE VARISTOR MOV524V15
MOV3 METAL OXIDE VARISTOR V1000LA80A
P1 15 POSITION PLUG STT60021
PCB #1 D-1LVS CONTROL PCB STH01226B
PCB #2 HIGH VOLTAGE RECTIFIER PCB STH02226A
PCB #3 RELAY PCB STH03226
PHOTOCELL 120 – 240V AC PHOTOCELL
6390-FAA2
(This replaces the
P2455L Photocell)
R31 150 ohm 100W STA08018
R32 35K 20W STA08015
R33 2.4 MEG 2W STA08010
SW3 SPDT 15 amp SWITCH STJ01004 15

D-1LVS CONTROLLER
M.2016.D.D-1LVS
10-14-08 – REV 6-23-16
6.0 MAJOR COMPONENTS PARTS LIST (continued)
SCHEMATIC TAG # DESCRIPTION TWR PART #
T2 ISOLATION TRANSFORMER STC05004
T1 FERRORESONANT
TRANSFORMER STC30018
T4 TRIGGER TRANSFORMER STC05005
TB1 10 PART TERM BLK TERMBLK - 10
TB2 12 PART TERM BLK TERMBLK 141 - 12
TLS THERMAL LIMITING SWITCH STJ10008
STROBE BEACON STBEACON7
STROBE BEACON LENS STDBCLENS
BEACON GASKET STBEAGSK2
STBEACON7 TERMINAL BLOCK TERMBLK7KIT
6 CONDUCTOR MULTI-GAUGE
CABLE STROBCABLE-2
STROBE CABLE TIE STCABLTIE
SINGLE EYE LACE MESH .50 - .62 CABLEGRIP1
16