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Introduction
The CDW12U5 is an intelligent lighting control module (LCM) or connection
box providing connections for up to twelve luminaires, up to five sensors
and up to five switch inputs. The unit is designed to simplify installation
whilst providing an intelligent managed lighting system, including provision
for emergency lighting.
Fixing
The box should be attached to a suitable smooth, flat surface, using the two
end-located fixing points. Consideration should be given to the need for
access to install and maintain the lighting system when choosing a location
for the box.
The box must not be distorted when fixing. If the box is to be mounted on an
uneven surface it may be necessary to use packing pieces or self-adhesive
stand-off feet.
When the box is to be rod-fixed, the fixing should be substantial enough to
withstand the action of plugging and unplugging the connectors.
Electrical Connection
The connections to this equipment should be made only by a suitably
qualified person and in accordance with current wiring regulations.
A means of disconnection must be incorporated in the fixed mains
wiring to this box in accordance with current wiring regulations.
It is imperative that the MLS Bus be wired in the correct type of cable.
Normally it should be 1.5mm² unscreened twisted pair. See Application
Note AN4001. Do not connect Mains to the MLS Bus.
The cover of the cable chamber is removed by inserting the tip of a flat
bladed screwdriver into the catch recess and exerting light pressure on the
handle in an inboard direction while lifting the long outboard edge of the
cover.
The cable entries, for 20mm conduit, bushes or glands are semi-pierced in
the walls of the cable chamber and can easily be removed from the outside
with a 20mm hole saw.
If the cables are not routed right into the box through conduit or trunking, a
cable restraining gland must be fitted at the cable entry for strain relief.
MLS Interface
Card (if fitted)
CABLE
CHAMBER
MLS Bus 1 In
MLS Bus 2 In
MLS Bus 1 Out
MLS Bus 2 Out
LIVE
(MAINTAINED LIVE)
EARTH
NEUTRAL
Pre-Installed
Rigid Link
Connecting the Luminaires
Separate versions of the CDW12U5 are provided to control DSI, DALI and
1-10V Ballasts. (See Part Numbers list on the back page.)
Note: Ballast types CANNOT BE MIXED on a single CDW12U5
The CDW12U5 is equipped with twelve GST 18/6 sockets for the
connection of individual luminaires. These connections are equipped to
take Ex-Or's Latching Plug Shells. Alternatively non-latching "Wieland
style" plugs with hoods of up to 21mm depth may be fitted.
The luminaire sockets are grouped into six channels, each capable of
independent control, as follows:
2 channels each controlling 3 luminaire sockets,
2 channels each controlling 2 luminaire sockets,
2 channels each controlling a single luminaire socket.
The CDW12U5 may be commissioned with configurations which allow two
or more of the six channels to act together, in any combination required.
Connections Available on each Luminaire Socket.
Switched Live - 6A max per channel, 16A max per box.
Neutral
Maintained Live - 2A max per box.
-
Dimming Control
+
MLS BUS CONNECTIONS
1.5mm² TWISTED PAIR IN
AND 1.5mm² TWISTED PAIR OUT
MAINS POWER
CONNECTIONS
THIS EQUIPMENT MUST BE
EARTHED
REMOVE LINK IF A SEPARATE
MAINTAINED LIVE SUPPLY IS
TO BE CONNECTED.
10 x DSI/DALI ballasts max per channel.
40 x DSI/DALI ballasts max per box.
Analogue 1-10V ballasts: 20mA, see details
on back page.
Channel 5
Channel 3
Channel 6
Channel 4
Connecting the Sensors
The following SELV sensors are designed to interface to the CDW12U5:
MLS2500CDR
Corner-mount Microwave sensor with photocell, semi-flush
mounted. Available surface mounted (SM suffix)
MLS2401CDR
360º Microwave sensor with photocell, flush mounted. Available
surface mounted (SM suffix)
MLSM2002CDR
Control Module for 360º Mini PIR with photocell used with DHS
or DHW mini detector head to form integral luminaire-mounted
unit
MLSM2002CDRDHPBW Mini Detector with Control Module & Plasterboard Fixing Kit
MLS3000CDR
360º PIR sensor with photocell (flush or surface mount: F or SM
suffix)
MLS3003CDR
360º PIR sensor with photocell with photocell with tilting lens
(flush or surface mount: F or SM suffix)
MLS3003CDRMB
Mid-Bay (for mounting up 12m high) 360º PIR sensor with
photocell with tilting lens (flush or surface mount: F or SM suffix)
MLS3003CDRHB
Hi-Bay(for mounting up to 16m high) 360º PIR sensor with
photocell with tilting lens (flush or surface mount: F or SM suffix)
All connect to the CDW12U5 by means of an Ethernet-style RJ45 connector terminated
patch lead which are available ready-made in 3m, 5m and 10m lengths. Up to five detectors
may be connected to a CDW12U5 box. The maximum allowable cable length from the
CDW12U5 to a detector is 100m.
Positioning the Sensors (for Fixing Details see installation instructions)
The MLS2500CDR is designed to project below the ceiling and to sense a volume of space
defined by an slanting cone, radiating from its flat face. Typically sited in the corner of a room
ceiling diagonally opposite the door, it can then sense presence over the entire room. At the
maximum sensitivity setting it can sense an area extending to 20m from its own position.
The MLS2401CDR is designed to be set in the plane of the ceiling and to sense a conical
space vertically below such that its diameter at floor level is equal to 2.8 x the detector's height
above floor level (typically 7m diameter with a ceiling height of 2.5m).
Note that in the above two cases microwave presence detection is not completely
blocked by materials such as plasterboard, wood, and glass, so the possibility of
unwanted presence detection through lightly built partitions should be considered
when determining sensor positioning and sensitivity settings.
MLS3000CDR & MLS3003CDR should be positioned in the centre of the occupied space.
They sense a conical space vertically below with the following aspect ratios:
Aspect Ratio (diameter : height)
Micro Detection -
Type
High Sensitivity
2.8:1
Office
(7m diameter @ 2.5m height)
Mid-Bay
N/A
Hi-Bay
N/A
Avoid mounting next to an AC unit. For details of tilting lens, see installation instructions.
None of the sensor types above should be positioned within 0.25m of a luminaire.
The MLSM2002CDR and its associated DHS or DHW mini detector head can be mounted
within the structure of the luminaire with only the small oval face of the sensor showing. See
installation instructions for this product. (For remote mounting in plasterboard or suspended
ceilings, use MLSM2002CDRDHPBW.)
Connecting the Switches
The CDW12U5 is equipped to take a set of up to five SELV switches which will typically be
two way, centre-off, momentary rockers, (e.g. the MK K4900 range). The logical function of
a switch can be configured from a wide range of options and its action can be associated
with any combination of channels. The switch connection consists of a 3-pole pluggable
terminal block comprising a common and two returns from normally open contacts. The
LCM is supplied fully populated with five plugs.
Note that if the SELV status of any one of the switches is
compromised by reason of inadequate insulation or
segregation of the cabling, then the SELV status of all other
switches AND OF THE SENSORS will also be compromised.
For connection of the SELV switches, multi-core cable such as 3-core 300/500V 0.75mm²
cable to CMA Reference 3183Y or, for LS0H, to CMA Reference 3183B or CAT5 cable for
example may be used. The maximum allowable cable length between the switch
mechanism and the CDW12U5 switch terminal block is 100m.
Three separate singles cables should not be used.
Channel 1
Channel 2
Macro Detection -
Max recommended
Standard Sensitivity
mounting height
4:1
3.5m
(10m diameter @ 2.5m height)
2:1
12m
(20m diameter @10m height)
1.9:1
16m
(27m diameter @14m height)
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