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LRM2070, LRM2080, LRM2090 Datasheet
OccuSwitch DALI sensor/controller
LRM 2090
The BMS version has a second DALI interface (X connector).
This interface makes it possible to connect the OccuSwitch DALI to a
building management system using a controller or gateway with a DALI
interface. The OccuSwitch DALI will act as a DALI slave.
This also makes it possible to use DALI user interfaces to override the
OccuSwitch DALI.
This interface is fully compliant to DALI but the unit will act, of course,
differently than a standard DALI driver.
Response to DALI commands
If a DALI command is received by the OSD BMS (for instance a direct
arc power command) all luminaires in all groups connected to the
OccuSwitch DALI will respond, and respond in the same way.
The OccuSwitch DALI sends most of these DALI commands directly to
the drivers (luminaires).
Every command that changes the output level will disable the daylight
depending regulation, and this is valid as long as there is motion. If there
has been no motion for the set occupancy delay time (timer has run
out), then the light will go on in daylight regulation mode. The daylight
regulation is also enabled after sending a SCENE 1 command.
Response to DALI queries
The OccuSwitch DALI will respond to all DALI queries like a DALI
(#102) driver.
A query on the ACTUAL LEVEL will result in the average value of the
window and corridor side.
The OccuSwitch DALI performs a regular scan on the connected
drivers. Queries on status and lamp failure will report the result of this
scan, if a single driver reports an error, the OccuSwitch DALI will do as
well.
Other queries like MAX LEVEL will show the value and status as stored
in the OccuSwitch DALI.
Parallel mode
The LRM2090 supports parallel mode. This means that units can work
in parallel, very much like the advanced (LRM2080) version. Within
one DALI channel a maximum of 64 OSD-BMS (LRM2090) can be
connected and you can create 16 groups, and therefore 16 rooms or
areas.
Depending on the mode, each unit in a specific group will react on
movement detected by itself or any other unit using the same group
assignment.
In all modes except mode 6 and 9 all units work in complete parallel. In
mode 6, corridor linking is active and in mode 9, the smart open plan
control is active (for more information on the different modes refer to
page 11 and 12).
When using OccuSwitch DALI BMS without a controller or gateway,
either standalone or in groups, a DALI power supply (connected
to the "X" bus) is required to enable communication between the
OccuSwitches.
Smart open plan
In mode 9, the LRM2090 will react differently to neighboring (so in the
same group) occupancy detection. If the lights were off, lights will switch
on, but at the so-called background level. Only if the unit itself detects
occupancy, the light will it be set according to the predefined lightlevel.
Daylight depending regulation is active in both situations. Only if none of
the units detect occupancy (and each delay timer has elapsed) the lights
will be switched off.
Advanced functions for a BMS
The LRM2090 can be connected to a standard DALI gateway as
described earlier.
To enable the advanced functions of the OccuSwitch DALI BMS, a
specific gateway is required.
There are 4 gateways that can be used:
DALI <-> Lon (using LonMark)
Loytec LDALI (LDALI-3E10x) with 1, 2 or 4 DALI channels
DALI <-> BACnet
Loytec LDALI (LDALI-ME204) with 4 DALI channels
DALI <-> KNX
Philips PDBC120-DALI-KNX with 1 DALI channel
DALI <-> DyNet
Philips Dynalite DDBC120-DALI-DyNet with 1 DALI channel
The Loytec gateways need separate DALI power supplies.
The different gateways offer different functionality.
Integration with occupancy
All gateways pass occupancy information from the OSD to other
devices in the network (e.g HVAC and sunblinds).
All gateways do this in groups, you cannot "see" an individual OSD
sensor. Only groups of OSDs are visible, where either one, or more, or
all, sensors are detecting occupancy. This is similar to the parallel mode
(see earlier) and parallel operation is also active. This method reduces
the amount of traffic on the bus and saves commissioning time for the
building system, since only one connection needs to be made for a
room or area.
Compatibility
All gateways come with all the necessary tools (the Loytec gateways
even support off-line DALI commissioning) for the common integration
tools like ETS, LNS™, LonMaker™ and Newron NL facilities™.
The CEA-709 (Lon) gateway fully supports the LonMark standards.
Exceptions
• When SCENE 1 is sent to the Occuswitch DALI, it will begin daylight
regulation using the predefined light level settings.
• Any command resulting in a different output level will (re)start the
occupancy timer. If you need to keep the lights on (or off) you need
to repeat the command periodically with a shorter repeat time than
the set occupancy timer.
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