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: 20(28)
RUN
Synchronization (GREEN)
LED OFF: All outputs are off
LED ON: At least one output is active. Led is flashing at same time and frequency as the
aviation light.
ALARM
Alarm indicator (RED)
LED OFF: Normal operation, no alarms
LED ON: Active alarm condition
7.5 Troubleshooting
The light doesn´t start
•
No power (check that the 3V3 status LED is illuminated)
•
Incorrect configuration (check DIP switches, make sure Test mode is turned off)
•
Loose wires (check that all wires are properly seated in terminal block connectors)
•
Do not exceed maximum operating voltage. Mains power supply input is protected with overvoltage
protection circuit that is tuned to stated operating voltage range.
No Modbus data connection to Obelux controller
•
Check DIP settings. Check that light has a correct Modbus address and that there are no conflicting
addresses. Make sure light is configured to Modbus mode (DIP8).
•
Too many RS-485 termination resistors (120ohm) on the same RS-485 communication bus. Only the
last light on the bus should have the termination resistor in use.
•
Check Modbus data wiring
Light does not change modes between day, twilight and night
•
Check that the photocell has an uninterrupted view of the sky
•
Check that there are no external light sources that interfere with the photocell
•
Photocell is sampled once in a minute and read value are averaged to avoid sudden state changes.
Unless test mode is enabled, it takes approx. three (3) minutes to change system state between day,
twilight and night.
Light does not flash in sync
•
GPS antenna is mounted on top of obstruction light. Antenna needs non-blocked view to GPS
satellites in orbit. After start-up, GPS receiver may take up to 30min to obtain correct time data from
GPS satellites. This operation requires data from several GPS satellites.
7.6 Spare parts
Part code Description
SSAL2G3PSU Main board for MI-light
GC-MI17 Glass Cover with gaskets for MI-light
7.7 Packaging details
Box dimension: 33 X 33X 46cm
Weight: 12,70Kg
Box material: Cardboard outer box with extra cushion inside
