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: 18(28)
7 OPERATION
MI series light can be configured in to two operation modes. These two operation modes are explained in the
following chapter.
7.1 Stand-alone operation
In stand-alone operation, the light is configured with the DIP switches. No additional controllers are needed.
Light head will use its internal photocell to determine the time of day (day, twilight or night). The light will
change its flashing mode based on photocell data and how the user has configured the light. Light heads will
synchronize their flashing with the built-in GPS module. After light head start-up, it will take some time for the
light head to acquire a GPS lock.
7.2 Modbus operation
In Modbus operation, the light is being controlled with a Obelux controller. If connection is lost the controller
the light will keep working on its own. It will use its internal photocell and GPS to synchronize flashing and
determine the time of day. The light will return to normal operation when the connection is recovered.
7.3 Causes for ALARM
The following events can cause an ALARM:
•
Internal power failure
•
Light source failure, including decreased intensity level below rated level of light
•
Loss of GPS synchronization signal or GPS module failure
•
Incorrect photocell operation
The ALARM led will turn on and ALARM relay will activate.
