MLS2021DF & MLS2021DSM for DSI ballasts
MLS2021DALIF & MLS2021DALISM for DALI ballasts
Digital Gold PIR Detector
with regulating photocell
MLS2021DF
MLS2021DALIF
MLS2021DSM
MLS2021DALISM
Installation and Commissioning
Instructions
Note: QuickSet Pro required for commissioning
1
Digital Gold PIR Detector with Regulating Photocell
Please note that UltraLite versions of these detectors (suffix CWL7) do not offer
MLS functionality and cannot be connected using MLS cable.
Only suitably qualified personnel should install this equipment.
This is a high-performance, communicating presence detector which can be used as
part of a full Ex-Or MLS Digital Managed Lighting System or as a stand-alone unit. It is
equipped with a regulating photocell to control digital DSI or DALI ballasts (when using
the detector’s Digital Output) and a volt-free output for control of non-dimmable lighting
loads. The product incorporates Ex-Or’s OneSwitch Dimming, local manual operation of
any controlled lighting load.
Fixing
MLS2021DSM/DALISM - The housing may be secured to a hard surface or to a BESA
box. The unit fits into the housing with a simple bayonet action.
MLS2021DF/DALIF - Supplied with a sinking (dry-lining) box for flush fitting. The
sinking box fits into an 89mm diameter hole in a ceiling tile or plasterboard ceiling. To
avoid damage to ceiling tile do not overtighten. Depth required behind ceiling 62mm from
front flange plus an allowance for the minimum bend radius of the cable. No access
above the ceiling is necessary.
Electrical Connections
This detector should be connected in accordance with the diagrams overleaf. Both the
Digital Output and MLS connections are polarity-free however other MLS products
require that polarity be maintained. The MLS cable should be mains-rated, unscreened,
twisted pair of at least 1.5mm CSA. For further information please refer to Wiring
Application Guide AN4001. Please note that UltraLite versions of these detectors
(suffix CWL7) do not offer MLS functionality and cannot be connected using MLS
cable.
The detector is designed to control up to 25 DSI or DALI luminaires, a switched load of
up to 6 Amps or a combination of the two. When controlling DSI or DALI ballasts the
ballast type must not be mixed. The DSI or DALI input terminals on the ballasts should
be connected in parallel with each other and to the Polarity-Free Digital Output terminals
on the rear of the detector. Each DSI or DALI luminaire is controlled completely by its
digital input and therefore would normally have a permanent power supply. Turning the
power off to some lights within a control circuit will not affect the operation of those lights
that remain powered up and under the control of the detector.
When switching via the volt-free output, multiple MLS2021D detectors may be
connected in parallel provided the controlled load does not exceed 6 Amps.
Note: The digital dimming signals of two detectors should NEVER be connected
together. Their only connections should be to the digital inputs of high frequency
ballasts of the correct type.
2
Using OneSwitch, MLS*, Switched and
VOLTFREE
OUTPU T
LIVE
NEUTR AL
EARTH
ONESW ITCH
DIMMI NG
MLS2021D
Digital Outputs
(MAX 6 AMP S)
LOAD
Momentary
push-to-make
switch
These Connections are
Polarity-Free
Digital
MLS
Output
BUS
1 2 1 2
L
Permanent
or switched
N
supply
E
Please note that the Earth terminal has no internal
connection and is used for termination only.
* UltraLite-version detectors (suffix CWL7)
do not offer MLS functionality and cannot
be connected using MLS cable.
MLS Bus Connection
(Some MLS devices require
that polarity be maintained)
Digital output
Using Switched Output and MLS*
VOLTFREE
OUTPU T
LIVE
NEUTR AL
EARTH
ONESW ITCH
DIMMI NG
In Parallel, using Switched Output only
MLS2021D
(MAX 6 AMP S)
NC
2 x MLS2021D
LOAD
These Connections are
Polarity-Free
Digital
MLS
Output
BUS
1 2 1 2
* UltraLite-version detectors (suffix CWL7)
do not offer MLS functionality and cannot
be connected using MLS cable.
NC
Optional MLS Bus Connection
(Some MLS devices require
L
Permanent
or switched
N
supply
E
Please note that the Earth terminal has no internal
connection and is used for termination only.
that polarity be maintained)
Any connection not shown is NO C ONNE CTI ON
LOAD
(Max 6 Amps)
VOLTFREE
OUTPUT
LIVE IN LIVE IN
NEUTRA L NEUTRA L
EARTH EART H
ONE
SWITCH
Relay outputs may be connected together in parallel to cover larger areas, however the
total load on all combined relay outputs must not exceed 6 Amps.
VOLTFREE
OUTPUT
NC NC
ONE
SWITCH
L
N
E
Permanent
or switched
supply
3
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