OBELUX MI Series User manual

© Obelux Oy 2017 Technical information in this document is subject to change without notice.
Page: 1(28)
OBELUX
A V I A T I O N L I G H T S
OBELUX MI SERIES
Medium-intensity aviation obstruction light
Manual
Version 1.7

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
Page: 2(28)
CONTENTS
1CHANGE LOG....................................................................................................................................................... 3
2ABOUT THIS DOCUMENT .................................................................................................................................... 4
3ABOUT THIS PRODUCT ........................................................................................................................................ 5
3.1 VERSIONS............................................................................................................................................................... 6
4SAFETY INSTRUCTIONS........................................................................................................................................ 7
4.1 GENERAL CONSIDERATIONS........................................................................................................................................ 7
4.2 ENVIRONMENTAL CONSIDERATIONS............................................................................................................................. 7
4.3 PERSONAL CONSIDERATIONS ...................................................................................................................................... 7
5INSTALLATION..................................................................................................................................................... 8
5.1 DEVICE INSTALLATION ............................................................................................................................................... 8
5.2 WIRING ................................................................................................................................................................. 8
5.2.1 Mains input (ACW versions and L864-MX-GA).......................................................................................... 11
5.2.2 Mains output (ACW versions) ................................................................................................................... 11
5.2.3 DC input (DC versions)............................................................................................................................... 12
5.2.4 DC output (DC versions) ............................................................................................................................ 12
5.2.5 Alarm Relay Output................................................................................................................................... 12
5.2.6 RS485 input (not available with L864-MX-GA).......................................................................................... 12
6CONFIGURATION ...............................................................................................................................................13
6.1 STAND-ALONE MODE.............................................................................................................................................. 14
6.2 MODBUS MODE .................................................................................................................................................... 16
6.3 TEST MODE........................................................................................................................................................... 17
6.4 L864-MX-GA CONFIGURATION .............................................................................................................................. 17
7OPERATION........................................................................................................................................................18
7.1 STAND-ALONE OPERATION....................................................................................................................................... 18
7.2 MODBUS OPERATION ............................................................................................................................................. 18
7.3 CAUSES FOR ALARM ............................................................................................................................................. 18
7.4 ONBOARD LEDS.................................................................................................................................................... 19
7.5 TROUBLESHOOTING................................................................................................................................................ 20
7.6 SPARE PARTS......................................................................................................................................................... 20
7.7 PACKAGING DETAILS ............................................................................................................................................... 20
8MAINTENANCE...................................................................................................................................................21
8.1 UPDATING DEVICE SOFTWARE................................................................................................................................... 21
8.2 REPLACING THE GLASS COVER ................................................................................................................................... 23
8.3 REPLACING MAIN CIRCUIT BOARD .............................................................................................................................. 25

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
Page: 3(28)
1 CHANGE LOG
Version
Date:
Description:
Author
0.1
25.10.2016
Document created
AHa
0.9
16.12.2016
Document draft released for internal review
AHa
1.0
23.12.2016
Document release
AHa
1.1
2.1.2017
New RED flashing mode added
AHa
1.2
31.1.2017
Photocell operation mode added
AHa
1.3
23.03.2017
Troubleshooting, Spare parts, Packaging, DC models
added.
AHa
1.4
03.04.2017
Photocell operation explained in more detail
AHa
1.5
12.07.2017
Installation chapter improved. Added pictures.
AHa
1.6
06.10.2017
GPS lock indicator LED functionality revised.
Photocell limits added for time of day changes.
AHa
1.7
15.11.2017
Maintenance chapter and L864-MX-GA added
AHa

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
Page: 4(28)
2 ABOUT THIS DOCUMENT
This document describes the installation and setup of the MI series light head unit, DIP switch effects and
operation of the unit on practical level.
CP
Control Panel
FPM
Flashes Per Minute
Table 1: Acronyms and Abbreviations

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
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3 ABOUT THIS PRODUCT
Obelux MI series obstruction lights provide 2000cd RED (Medium-Intensity Type B/C) light. Some models
also feature Night Vision Goggle (NVG) compliant infrared light (850nm).
The MI series lights support both Stand-alone and Modbus operation. In Stand-alone mode, no external
controllers are required to run the product. In most use cases, mounting the standalone aviation obstruction
light and connecting power supply cable are the only actions needed to operate. In Modbus operation, the
light is controlled with a Obelux controller as a part of an aviation light system.
The models come with built-in photocell that can drive the transitions between day, twilight and night modes.
The light operation is based on an embedded microcontroller on the light main circuit board.
Figure 1: Main functional parts of light head
1. Lug (for lifting the light)
2. Spirit level (for levelling the light during installation)
3. Location of photocell
4. Service access hatch
5. Cable glands

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
Page: 6(28)
Figure 2: Main circuit board of the light head
1. Software version label
2. Mains power supply connectors
3. Alarm relay connector
4. Communications network connector (RS-485)
5. External signal input connector (GPIO)
6. RS485 termination DIP switches (DIP4)
7. Configuration DIP switches (1-8)
8. Status LEDs
3.1 Versions
Obelux MI series is available as the following models:
Order code
Output
Op. volt.
GPS synch
Infrared
CCV*
Packing dimensions
MI-ACWGAM
2 000cd
90-265VAC
Yes
No
No
460x330x330mm, 12,7kg
MI-ACWIRGAM
2 000cd
90-265VAC
Yes
Yes
No
460x330x330mm, 12,7kg
MI-ACWCCVGAM
2 000cd
90-265VAC
Yes
No
Yes
460x330x330mm, 12,7kg
MI-ACWCCVIRGAM
2 000cd
90-265VAC
Yes
Yes
Yes
460x330x330mm, 12,7kg
MI-DCGAM
2 000cd
20-60VDC
Yes
No
No
460x330x330mm, 12,7kg
MI-DCIRGAM
2 000cd
20-60VDC
Yes
Yes
No
460x330x330mm, 12,7kg
MI-DCCCVGAM
2 000cd
20-60VDC
Yes
No
Yes
460x330x330mm, 12,7kg
MI-DCCCVIRGAM
2 000cd
20-60VDC
Yes
Yes
Yes
460x330x330mm, 12,7kg
L864-MX-GA
2 000cd
90-265VAC
Yes
No
No
460x330x330mm, 12,7kg
*Cold Climate Version

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
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4 SAFETY INSTRUCTIONS
In this section, you will find general safety instruction for the device. Please read the instructions carefully
before installing or using the device to avoid any personal, environmental or material damages.
4.1 General considerations
Install device observing manufactures installation guide.
Use only cables and connectors specified by the manufacturer.
Keep your device away from heat sources, dust, smoke or other harmful substances.
Do not add or remove any components inside the device unless otherwise approved by the manufacturer.
Do not spill food or other liquids on device
If you have any error situation with the device, do not try to fix it by yourself, contact your reseller.
4.2 Environmental considerations
The European Parliament and the Council of European Union issued directive 2012/19/EU to contribute to
sustainable production and consumption by, as a first priority, the prevention of WEEE and, in addition, by
the re-use, recycling and other forms of recovery of such wastes so as to reduce the disposal of waste and
to contribute to the efficient use of resources and the retrieval of valuable secondary raw materials.
Obelux aviation obstacle light products sold inside European Union can be returned to manufacturer if no
local WEEE separate collection and re-use services are available. Please contact Obelux for details.
Obelux does not refurbish returned items but forwards them to authorized WEEE treatment facility.
4.3 Personal considerations
HIGH VOLTAGE! Device contains high voltage which is very dangerous to human beings. Any direct contact
to high voltage could lead to serious injury, worst case even death.

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
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5 INSTALLATION
5.1 Device installation
Mount the obstruction light to selected mounting point using quality-made fasteners. This aviation obstruction
light comes with four bolt holes to mount this product securely. One of the mounting points is not painted.
This mounting point can be used as additional grounding. Level the light using spirit level (bubble level) if the
mounting point is not already levelled. Tighten bolts & nuts. Obelux recommends 100 Nm tightening torque
for M12 hot-dipped 8.8 bolts with suitable washer between bolt and mounting plate. When the service access
hatch (door) is open, check that there is no inflow of water (incl. hail and snow) into aviation obstacle light.
Photocell is located on top of the light. Photocell should have an uninterrupted view of the sky to work
correctly. All dimensions are in millimetres (mm).
Figure 3: Dimensions
5.2 Wiring
Route cables using cable glands on side of the light head. Connect the cable wires securely to appropriate
terminal block connectors. Connectors can be disconnected from the terminals on the main circuit board for
easier access. Second row of terminals in the Alarm relay / RS485 connector can be used to distribute alarm
and data signals to next light head.
Figure 4: Terminal block connector
Mains Power
Alarm relay / RS485 data

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
Page: 9(28)
Figure 5: Wiring the Mains Input
Figure 6: Distributing power and data to next light head

MI SERIES –Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
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Make sure that all unused glands or gland holes are sealed. There are two different size cable glands used
on the device. Follow the illustration below to achieve desired EMC protection with the EMC glands:
Cable gland M25 for 11-16 mm cable diameter
Please follow these instructions when routing cable via a cable gland:
1. Partially expose the braided screen by removing the outer sheath of the cable at a length of approx.
10 mm.
2. Insert the cable through the dome nut and the gland body until the contact spring is pressed against
the braided screen.
3. Firmly screw on dome nut.