obsta OBSTAFLASH Led Operating instructions

OBSTAFLASH LED
INSTALLATION AND OPERATION GUIDE
OBSTA- 2 rue Troyon 92316 Sèvres Cedex FRANCE
Phone : [phone]
Fax : [phone]
www.obsta.com
OCTOBER 2018

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DESCRIPTION
Medium Intensity type A et B
OBSTAFLASH180
OFP-CAB-12P-4E-RW-240
OFP-CAB-6P-2E-RW-240
COLOR
white and red
white and red
white and red
POWER
SUPPLY
48V
120-230 V – 50/60Hz
120-230 V – 50/60Hz
P/N
113738
113739-P12-4E
113733-6P-2E
This list is not exhaustive and some modifications can be done on the power supply for remote alarm
control and combination of medium and high intensity system.

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BE CAREFUL
Led projectors in this lighting system Produce brilliant flashes of light which can result in temporary
or permanent eye damage. DO NOT LOOK DIRECTLY AT THE PROJECTOR WHILE IT IS
IN OPERATION.
WARRANTY
OBSTA warrants the equipment described in the instruction manual and sold to purchaser to be free from
defects in material and workmanship at the time of shipment. OBSTA's liability under this warranty being
limited to repairing or replacing, at OBSTA's option, items which are returned to it prepaid within twenty four
(24) months from shipment to the original Purchaser, or twelve months from commissioning, and found, to
OBSTA's satisfaction, to have been defective. In no event shall OBSTA be liable for consequential damages.
NO PRODUCT IS WARRANTED AS BEING FIT FOR A PARTICULAR PURPOSE AND THERE IS NO
WARRANTY OF MERCHANTABILITY. This warranty applies only if: (I) the items are used solely under
the operating conditions and in the manner recommended in OBSTA's instruction manual, specifications, or
other literature; (II) the items have not been misused or abused in any manner or repairs attempted thereon;
(III) written notice of the failure within the warranty period is forwarded to OBSTA and the directions
received for properly identifying items returned under warranty are followed; and (IV) such return notice
authorizes OBSTA to examine and disassemble returned products to the extent OBSTA deems necessary to
ascertain the cause of failure. The warranties stated herein are exclusive. THERE ARE NO OTHER
WARRANTIES, EITHER EXPRESSED OR IMPLIED, BEYOND THOSE SET FORTH HEREIN, and
OBSTA does not assume, nor does OBSTA authorize anyone else to assume for it, any other obligation or
liability in connection with the sale or use of said products. OBSTA's liability on any claim of any kind,
including negligence, for loss or damages arising out of or connected with the manufacture, sale, delivery,
repair or use of any equipment or services provided by OBSTA shall in no case exceed the price allocable to
the item or service or part thereof which gives rise to the claim.
The integrity and reliability of OBSTA aviation obstruction lighting systems is dependent on the use of
OBSTA parts and components. To ensure the optimum performance and reliability of your OBSTA system, it
is strongly advised that only components and modules manufactured by OBSTA be used.
NOTICE
The integrity and reliability of OBSTA aviation obstruction lighting systems are dependent on
the use of OBSTA parts and components. To ensure the optimum performance and reliability of
your OBSTA system, it is strongly advised that only components and modules manufactured by
OBSTA be used.
WARNING!
Modifications to the Power Supply are required for certain applications. Documentation
to describe these changes may be found at the end of the manual.

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SECTION 1.0 - GENERAL INFORMATION
1.1 Scope
This manual provides information about the installation, operation, and maintenance of the
OBSTAFLASH Led Medium Intensity Obstruction Lighting Systems manufactured by OBSTA. The
lighting systems described in this manual are ICAO Medium intensity type A/B and FAA type L-865/L-
864, for use as medium intensity aviation obstruction warning systems.
1.2 General Description
The OBSTAFLASH Lighting System is led medium intensity systems manufactured to comply with
ICAO annex 14 chapter 6 and Federal Aviation Administration Advisory Circular 150/5345-43. Each
system consists of 1 beacon, an associated power supply with integrated controls, an ambient light
sensor (photocell) or GPS, and the interconnecting cable. System components are shown in Figures 1-1,
1-2, 1-3, 1-4 pages 5 to 8.
The obstaflash beacon consists of 3 led projectors made in glass and aluminum, and a junction box all
fixed on a stainless bracket. Each projector includes 2 white led circuits working in active redundancy
for the white version and/or a red led circuit shared with 2 other projectors. Each projector white or dual
color comes with a quick connector.
The power supply contains:
-for the type A+B : 14 power cards (12 for the 24 white led circuits and 4 red led circuits)
-for the type A only : 6 power cards for the 12 white led circuits
-for the type B only : 1 power card for the 2 red led circuits
-1 or 2 a command card with microprocessor and all related circuit (power supply, surge
protection, a security switch S1, a test button S2 and a luminous indicators).
The S2 button does have 3 positions:
-“Remote” position, the lights are in normal operation and controlled by the photocell or GPS or
other interface
-“Day” position, the light is forced in day mode
-“Night” position, the light is forced in night mode.
Option
The security interlock switch (S1) goes in “off” position and interrupts incoming power when opening
the power supply. Once the power supply is opened, S1 can be forced and blocked on « on »
position by pulling it. When closing the power supply, the security interlock switch (S1) will
automatically go back in “on” position.

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Figure 1-1. POWER SUPPLY COMPONENT LOCATIONS
The location of the components can changed depending on the specific demand

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Figure 1-2. POWER SUPPLY COMPONENT LOCATIONS
The location of the components can changed depending on the specific demand

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Figure 1-3. OBSTAFLASH 180° COMPONENT LOCATIONS

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Figure 1-5 POWER SUPPLY 113733-6P-2E
The size can vary depending on location of the components

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Figure 1-5 POWER SUPPLY 113739-P12-4E
The size can vary depending on location of the components
Figure 1-5 Size and dimensions of the external photocell (option).

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1.3 SPECIFICATIONS
1.3.1 LIGHT OUTPUTS
Red White day 20 000 ±25% effective candelas, single flash
Red night 2 000 ±25% effective candelas, single flash
Beam Pattern.........................................................................180º horizontally; >3º vertically
Flash Rate: ..........................................................................................................20 or 40 fpm
1.3.2 ELECTRICAL INPUT
Power Supply……………………………………………………….120/230 VAC +/-10%
Current max .................................................................1.6A (day mode), 0.3A (night mode)
1.3.3 MECHANICAL PROPERTIES
Flashhead 180°
Weight...................................................................................................................................10 kg
Dimensions ............................................................................l = 580 mm x w=240 x h=462 mm
Surface Area ......................................................................................................................870cm²
Wind Load ................................................................................................... 35 kg at 240 Km/h
Power Supply 113733-6P-2E
Weight ......................................................................................................................14 kg
Dimensions.................................................... w = 300 mm x h = 400mm x d = 200 mm
Power Supply 113739-P12-4E
Weight ......................................................................................................................23 kg
Dimensions.................................................... w = 350 mm x h = 590mm x d = 250 mm
1.3.4 OPERATING ENVIRONMENT
Operating Temperature .................................................................................................................-40ºC to +55ºC
Humidity ........................................................................................................................... 95% relative humidity
1.3.5 SYSTEM OPERATING STATUS INDICATORS
Inside the power supply:
-1 red indicator for the incoming main power supply with a test button S2
-On command card: 10 luminous indicators see figure 2-1
-Fault indications: Relay closure; contact rating of 3A at 220VAC.

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SECTION 2 : PRINCIPLES OF OPERATION
2.1 Power supply P/N 113733
The main power input is converted in 48VDC through the AC power supply that feeds the command
card.
2.2 Power cards P/N 113741
The system includes 14 power cards that regulate the current sent to the 24 white led circuits and 2 red
led circuits as per figure 2-2:
-12 power cards for white led circuits: each card regulates the current of 2 white led circuits of
the same projector during daytime;
-2 power card that regulates the current of the 2 red led circuits during night time; each red led
circuit is in serial with 3 projectors.
Those 7 power cards are connected to the command card through connector. The status of the
command cards and their respective led circuits are indicated by the luminous indicators D6 to D12
on the command card (figure 2-1 below). Those indicators are normally off and red blinking in case
of default.
2.2 Command card P/N 113744
The command card is powered in 48V and allows to:
- monitor the 7 power cards,
- change the color and light intensity between day time and night time,
- select master or slave mode of the system (dipswitch 1). Without external synchronization signal,
the card is set up in master mode. In case of GPS or other sync interface, the card is set up in slave
mode.
- select the configuration of the lights during day time and night time: dual color, white only or red
only,
- detect the alarm of the complete system with 9 luminous indicators described in figure 2-1,
- select the flash rate 20 or 40 flash per minute (dipswitch 3) in case master mode is selected.
Note: The configuration of this card is done in the factory and shall not be
modified by the end-user.

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Figure 2-1. LUMINOUS INDICATORS ON THE COMMAND CARD

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Figure 2-2. WIRING OF LED CIRCUITS ON THE COMMAND CARD

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Note: The configuration of this card is done in the factory and shall not be
modified by the end-user.
Figure 2-3. COMMAND CARD

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2.3 Photocell P/N100755
When included in the system, the 48V photocell allows automatic change light intensity and/or color
between day and night. The photocell sent this information to the command card by a 0V or a 48V
signal (max 53V).
2.4 Synchronization of multiple systems with cable
In case 2 or more systems are installed on the same location, ICAO and FAA request that all lights
should be synchronized. In this case, one cabinet should be configured as the master and the other as
slaves (dipswitch n°1 on figure 2-3 page 14). The photocell should be wired on the master cabinet only.
The 2 cabinets (or more) should be connected together through a shielded cable 3x1,5mm² through TB1
on “Sync input/output”, “Photocell Nigh state” and ground position.
2.5 Wireless synchronization with GPS P/N 113746
In case it is not possible to install a cable between each cabinet, a GPS can be installed inside each
cabinet for the synchronization. This GPS from OBSTA is a DIN rail module that includes 2 led
indicators and 2 outputs and comes with an external magnetic antenna coming with 5 meters cable.
When the GPS is connected to the satellite (usually 5 to 15 minutes after switch on the power
supply),
- The green led indicator blinks: it indicates that the pulse sync. is received from the satellite
and sent to the command card and D14 should pulse at the same rate,
- Without external photocell, the day/night mode can also be controlled by the GPS: the red led
is off during day time and on during night time and the information is sent to the command
card.
In case no signal from the GPS is sent to the command card (5 to 15 minutes after switch on the
power supply), the command card forces the system in night mode and pulse at 15 flashes per minute:
D13 blinks at 15 fl per minute and D14 is off.
When GPS is synchronized and signal received by the command card, D13 is normally off and D14
blinks at the pulse of the GPS.

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SECTION 3 : INSTALLATION
3.1 Unpacking
Carefully unpack each item and remove any internal packing material from the power supply, the batteries and
the beacons. Examine each item for obvious physical damage. Report any claims to the carrier immediately.
3.2 Mounting and Preparation
3.2.1 OBSTAFLASH beacons
The lights are usually mounted at the highest point on the structure on a vertical platform, or as per
requirements of the local Aviation Regulation authority in place at the installation location.
3.2.2 Connection of the beacon to the power supply
3.2.2.1 Connection of the 6 led projectors to their junction box or the their power supply
Each beacon includes 6 dual color projectors with molded cable and plug at their extremity that are
already connected on the junction box or on the power supply. However in the event that they
should be disconnected, it is very important that the 6 plugs of each projector be correctly
mounted and tightened in the 6 sockets of the junction box and also scotch added.
3.2.2.2 Connection of the interconnecting cable P/N 113762 to the junction box (option)
The interconnecting cable P/N113762 provided by OBSTA comes with a plug on one side to be
connected on the junction box
Connection of the cable P/N13762 on the junction box:
3.2.2.3 Connection of the interconnecting cable P/N 113762 to the power supply (option)
Entries of cables are on the lower side of the power supply.
3.2.2.4 Connection directly with cable (option)
With certain systems , the end user will use directly the standard shield cable.
WARNING: It is very important to respect the wiring of the cable P/N 113762 or between the standard
cable to TB1 and the 7 power cards in the power supply and the junction box.

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3.2.3 Photocell
If included in the system, the ambient light sensor (photocell) should be mounted upright, away from
artificial light (such as floodlights), and in a location that will enable its sensor window to have an
unobstructed view of the polar sky (eg., pointed north in the northern hemisphere).
Make the connection of the external photocell and the power supply to TB1 in the power supply as
per figure 3-1 page 18.
3.2.4 GPS antenna (option)
If GPS included in the system, the magnetic antenna of the GPS should be mounted on a ferrous
metallic part without an unobstructed view to the sky. The 5 meters cable provided with the antenna
shall be connected in the jack plug located in the front side of the GPS module.
3.3 120VAC to 230VAC Power cable
Make the connection of the AC power supply to TB1 in the power supply as per figure 3-1 page 17
and figure 3-2 page 18
3.4 Final Check
Before applying power to the equipment, check all wire connection and ensure that any user-installed
wiring does not interfere.

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Figure 3-1. TYPICAL WIRING DIAGRAM WITH SYSTEM

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Figure 3-2 TYPICAL WIRING DIAGRAM WITH SYSTEM

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Figure 3-3 TYPICAL WIRING DIAGRAM WITH SYSTEM