CDW12U5
Programmable Connect Digital Box
Installation and Commissioning Instructions
Introduction
The CDW12U5 is an intelligent connection box providing connections for up
to twelve luminaires, up to five detectors 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.
Connecting the Detectors
The
MLS2500CDR Corner-mount Microwave presence detector with photocell,
semi-flush mounted. Available surface mounted (SM suffix)
MLS2401CDR 360º Microwave presence detector with photocell, flush
mounted. Available surface mounted (SM suffix)
MLS2001CDR 360º PIR presence detector with photocell, flush mounted.
Available surface mounted (SM suffix)
MLSM2002CDR Controller for a 360º PIR detector with photocell. Used with
luminaire-mounted unit.
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.
MLS Interface
Card (if fitted)
The maximum allowable cable length from the CDW12U5 to a detector is
100m.
Positioning the Detectors
CABLE
CHAMBER
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
MLS Bus 1 In
MLS Bus 2 In
MLS Bus 1 Out
MLS Bus 2 Out
LIVE
(MAINTAINED LIVE)
EARTH
NEUTRAL
186 PCB1
Pre-Installed
Rigid Link
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.
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 detector
positioning and sensitivity settings.
The MLS2001CDR 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 2.4 x the detector's height above floor level (typically 6m diameter
with a ceiling height of 2.5m).
Fixing instructions for these three detector types are provided in the individual
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
installation instruction sheets packed with them.
None of the three detector types above should be positioned within
0.25m of a luminaire.
The MLSM2002CDR and its associated DHS or DHW mini-head sensor are
mounted within the structure of the luminaire with only the small oval face of
the sensor showing. See installation instructions for this product.
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.
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. Two
plugs are provided with each CDW12U5.
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.
Channel 5
Channel 6
following SELV detectors are designed to interface to the CDW12U5:
Channel 3
Channel 4
the DHS or DHW mini-head to form an integral
Channel 1
Channel 2
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
DETECTORS will also be compromised.
Neutral
Maintained Live - 2A max per box.
-
Dimming Control
+
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.
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.
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