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 the current wiring
regulations.
.
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.
A means of disconnection must be incorporated in the fixed mains
wiring to this box in accordance with the 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
NoteAN4001. Do not connect Mains to the MLS Bus
Connecting the Luminaires
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.
Connecting the Detectors
There are three models of SELV detector designed to interface
to the CDW12U5:
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 Passive InfraRed presence detector with
photocell, Flush Mounted. Available Surface Mounted
(SM suffix).
All three connect to the CDW12U5 box 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 Detectors
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.
186 PCB1
LIVE
(MAINTAINED LIVE)
EARTH
NEUTRAL
MAINS POWER
CONNECTIONS
THIS EQUIPMENT MUST BE
EARTHED
REMOVE LINK IF A SEPARATE
MAINTAINED LIVE SUPPLY IS
TO BE CONNECTED.
MLS Bus 1 Out
MLS Bus 2 Out
MLS Bus 1 In
MLS Bus 2 In
MLS BUS CONNECTIONS
1.5mm² TWISTED PAIR IN
AND 1.5mm² TWISTED PAIR OUT
CABLE
CHAMBER
Pre-Installed
Rigid Link
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
+
8 x DSI/DALI ballasts max. per channel
20 x DSI/DALI ballasts max. per box
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)
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)
Fixing instructions for these three detector types are provided in the
individual Installation Sheets packed with them.
Connecting the Switches
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.
None of these three detector types should be positioned within
0.25m of a luminaire.
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 is commissioned from a dedicated programme running on a portable PC.
Communication from the PC can be by means of a USB Infrared Transceiver which can signal directly to the CDW12U5's onboard Infrared port over a
short range or via any attached detector over longer ranges.Alternatively a specialised wired serial link can be established with the CDW12U5 itself.
The main parameters available for configuration are tabulated below. These parameters may be re-programmed any number of times and all settings will
be retained in the event of a power loss.
Commissioning
Per Box Parameters
Switch 1 A
Switch 1 B Including, for each of Switches 1-5, For All Switches
or A=
or Traditional OneSwitch action on switch element A or B
Detector 1 ON Sensitivity )
Detector 1 OFF Sensitivity )
| >
Detector 5 ON Sensitivity )
Detector 5 OFF Sensitivity )
Per Channel Parameters
Ballast Type Non-Dimming, 1% DSI, 3% DSI, 10% DSI, 1% DALI, 3% DALI, 10% DALI 1% DSI
Power Up On/Off On
Response Auto, Manual/Bus, Manual Only Auto
Main Time Delay (Off Delay) 10 seconds to 96 hours 20 minutes
Bus Connect Yes/No Yes
1st Zone Zone Number 1-100
)
2nd Zone Zone Number 1-100
3rd Zone
4th Zone
Corridor 1 Low Zone
Corridor 1 High Zone
Corridor 2 Low Zone
Corridor 2 High Zone
Global 1 Rx Yes/No No
Global 2 Rx Yes/No No
Start Lamps Max/Min Max
Entry Scene Scene1-6 Scene 1
Bright Out Yes/No No
Lamp Max 100%, 90%, 80%, 70%, 60% 50% 45%, 40%, 35%, 30%, 25%, 20%, 15%, 10% 100%
Fade to Off Yes/No No
Turn Off Options Off until Next Occupancy Detection or Minimum, 25% or Scene 6 until Next Occupancy
Detection or 3 x Off Delay or Until
Photocell Lower Threshold 0-1024
Photocell Upper Threshold 0-1024
Scene 2 Output 0-100% ) = 80%
Scene 3
Scene 4
Scene 5
Scene 6
Assigned Switches Switch 1A - Switch 5B Assigned or Not Assigned to this Channel All Switches Assigned
to All Channels
Local/Share for each switch Obey Locally only/ Obey Locally and transmit command on MLS Bus. Local for All Switches
Assigned Detectors Detector 1 - Detector 5 Assigned or Not Assigned to this Channel All Detectors Assigned
to All Channels
Assigned Photocells Photocell 1 - Photocell 5 (in Detectors 1-5) Assigned or Not Assigned to this Channel Photocell1 Assigned
to All Channels
Switch 2 A A=On, B=Off or A=Brighten, B=Dim Switch # A = On
Switch 2 B or A=Start Emergency Test, B=End Emergency Test . Switch # B = Off
Switch 3 A Short Press=On/Long Press=Dim, B=Short Press=Off/Long Press=Brighten
Switch 3 B
Switch 4 A or Recall Scene Number 1 to 6 - one Scene Number per switch element
Switch 4 B
Switch 5 A
Switch 5 B
0-100% of maximum for Detector Model in question Low/100% for All
)
Zone Number 1-100 )
Zone Number 1-100 ) No Zones
Zone Number 1-100 > Designated
Zone Number 1-100 )
Zone Number 1-100 )
Zone Number 1-100 )
Off until Next
the Building is Empty. Occupancy Detection
Photocell Action Regulate 100%, 90%, 80%, 70%, 60%, 50%, Passive, Active, Disabled Regulate 100%
(Used in Regulating Scene 1) 1023
(Used in Regulating Scene 1) 1023
Output 0-100% ) = 40%
Output 0-100% > Can be configured and downloaded directly = 20%
Output 0-100% ) = 10%
Output 0-100% ) = 5%
Configuration
Parameter
Options
Default
MLS Interface
Card (if fitted)
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 6
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.
The recommended cable for use with the SELV switches is 3-core
300/500V 0.75mm² cable to CMA Reference 3183Y or, for LS0H, to CMA
Reference 3183B. 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.
1. The CDW12U5 must be earthed as it provides the only path to earth
for luminaires connected through it.
2. A dimming control output should be connected only to the control
inputs of ballasts, never to another channel's dimming output and never to
other types of equipment.
3. Although nominally 12V, the dimming control outputs are not to be
treated as ELV, due to their passage through multiple luminaire enclosures
and therefore should be treated with the same respect as mains with
regard to wiring practice.
4. This equipment switches lights no more frequently than would a
responsible human occupant. However, manufacturers of some
particular lighting types (e.g. '2D' luminaires) may specify a maximum
number of switching cycles and/or a minimum on-time in order to
achieve a predicted lamp life. Please check with the manufacturer of the
luminaires to ensure that they are compatible with automatic controls in
this respect.
Important Additional Notes
