Honeywell Ex-Or LightSpot Silver Series Installation and operation manual

Installation and Commissioning
Instructions
Silver Series LightSpot with photocell
MS1221PF / MS1221PSM
MS1221PSM
MS1221PF
W4231I
Honeywell Ex-Or
Albery House, Springfield Road,
Horsham, West Sussex RH12 2PQ
Tel: [phone]
Fax: [phone]
Email: [e-mail]
www.ex-or.com
At the end of their useful life
the packaging and product
should be disposed of via a
suitable recycling centre.
Do not dispose of with normal
household waste.
Do not burn.
by Honeywell
Note: Infrared Programmer QuickSet Pro required for commissioning

Silver Series LightSpot with photocell
The Silver Series LightSpot is a high performance presence detector with photocell. In all operating modes, the
photocell can hold lights off as a vacant area becomes occupied, and if the light level falls too low during the
period of occupancy, the lights switch on. In ‘Passive Mode’ the lights do not switch off whilst the area is occupied
no matter how much light is measured. In ‘Active Mode’ the photocell is able to switch the lights off whilst the area
is occupied.
Fixing
MS1221PSM - The housing may be secured to a hard surface or a BESA box. The unit fits into the housing with
a simple bayonet action.
MS1221PF - Supplied with a sinking (dry lining) box for flush fitting. Sinking box fits into an 89mm diameter hole
in 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.
Note: Do not mount within 25cm of a luminaire.
Connection Examples
Important Additional Notes
1. Only suitably qualified personnel should install this equipment.
2. All terminals on this product are provided for final connections. It is not intended that the product be used as a junction box
for looping cables.
3. A means for disconnection must be incorporated in the fixed wiring in accordance with the current wiring regulations.
4. This equipment switches lights no more frequently than would a responsible human occupant. However, manufacturers of
some 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.
The MS1221 has two outputs, one influenced by the photocell (R1), the other not (R2). This is useful in
applications where a fan or water is being controlled in addition to any lighting.
N
E
L
Permanent
or switched
supply
VOLT-
FREE
OUTPUT
LIVE OUT
LIVE IN
NEUTRAL
EARTH
LOAD 2
(Max 6 Amps)
NOT INFLUENCED
BY PHOTOCELL
LOAD 1
(Max 6 Amps)
INFLUENCED
BY PHOTOCELL
R2
R2
R1
TOTAL LOAD NOT
TO EXCEED 10A

Parameter Options
R1 and R2 Off Delay
Independent Off Delays of between 1 minute and 96 hours may be set for each Relay. A 10-second Off Delay is
available for walk-testing the product. In a typical office environment a 20-minute Off Delay is usually satisfactory.
Response (Automatic / Semi-Automatic)
Where absence detection is required (i.e. the user manually turns lights ON if required but lights still turn off
automatically once an area is vacated), semi-automatic operation can be set via the programmer. It should be
noted that this mode of operation affects only the switched-live output. Where semi-automatic operation is required
on both outputs, please contact Ex-Or for assistance.
Power Up (On/Off)
Set to ON the detector will automatically switch its outputs on when Mains is applied. If set to OFF, the detector will
power up without turning its outputs on, wait for 30 seconds and THEN look for movement. Only if the area is
occupied will the output switch on at this time. The detector must be set to Power Up ON when used in conjunction
with semi-automatic operation.
Photocell Mode (Passive/Active/Disabled)
The sensor features an in-built photocell. The photocell does not affect the volt-free output - i.e. the volt-free output
will turn ON regardless of natural light levels when occupancy is detected. The photocell has three modes of
operation - Passive, Active and Disabled. Its operational behaviour is governed by the setting chosen and by the
values stored in the Upper and Lower thresholds (see diagram overleaf).
Passive - The photocell will inhibit turn-on of the controlled load if sufficient natural light is available. It will not turn
the load off whilst an area is occupied
Active - The photocell will turn the controlled load on and off as required whilst natural light levels fluctuate during a
period of occupancy. This mode of operation operates in conjunction with a passing cloud timer (PCT). The PCT is
asymmetrical in operation - the load will be switched on immediately that the light level falls below the lower set
point, however, the load switches off only if the light level exceeds the upper threshold continuously for a period
equal to the Off Delay.
Disabled - The photocell has no effect.
24hr Cycle (Yes/No)
For use in ‘Washroom Mode’ only (see overleaf) to provide hygiene flush. In this mode, if the detector has seen no
movement for 24 hours, the output (selectable; default = R2 volt-free) will be switched ON for the duration of the
time delay. Used in conjunction with a suitable valve the need for separate urinal flush control is removed.
Lower Threshold (0-254)
The point at which the photocell allows lights to switch on.
Upper Threshold (0-254)
The point where the photocell turns lights off if the photocell is in Active Mode.
Commissioning
The units are supplied with factory default settings (Power-Up On, fully Automatic operation, a 20 minute Off Delay,
no 24hr Cycle, Photocell Disabled). Program using the infrared programming tool QuickSet Pro.
Walk-test Mode
Walk-test mode is used to check that the detector is operating as required. The short off-delay enables the installer
to check that lights are switching on when movements are made at the edge of the detection zone. It is easier to
carry out a walk-test when the photocell is not holding the lights off.
1. Change the Off Delay to 10 seconds using the QuickSet Pro by choosing ‘Utilities / LightSpot/MLS/LCM / User
Test / Walk Test / OK’.
2. Move around the area that is being controlled, stopping for 10 seconds to allow the lights to switch off, before
moving and triggering the lights back on. Re-program the desired Off Delay once testing is complete. The
programmed Off Delay will be automatically restored after 5 minutes.

Setting the Photocell (Photocell only affects the ‘Live Out’ output)
1. If the lights are not already on, switch them on manually by pressing ‘Utilities / LightSpot/MLS/LCM / IR Remote /
Luminaire+ / OK’ on the QuickSet Pro. Fluorescent lights do not reach full output until up to 15 minutes after being
switched on, so ensure that the lights are fully warmed up before continuing. This stage may be omitted if the
intention is to operate the detector’s photocell in Passive Mode only [the detector must have already been
programmed to Passive Mode].
2. Wait until the time of day when the natural light level is at the point below which you would want the lights to be on, and
above which you would not want the lights to be on.
3. Start the internal self-programming mechanism by pressing ‘Utilities / LightSpot/MLS/LCM / Set Light Level / OK’.
The detector takes a measurement, adds a small amount and stores the value in the Upper Threshold. Then it turns
the lights off, makes another measurement and stores the value in the Lower Threshold. The lights now switch on
again to acknowledge a successful programming operation.
The two switching thresholds have now been set, and the difference between them is equal to the contribution made by
the electric lighting; this is the perfect amount of hysteresis to ensure that the lights will not oscillate. The thresholds may
be read back and fine-tuned if necessary using the QuickSet Pro. Please note that the values are non-specific units i.e.
not lux.
Note: The light level perceived by the detector at the moment immediately prior to a Download operation is shown
momentarily on the QuickSet Pro screen following the Download; this is a useful mechanism for troubleshooting.
Washroom Mode
The unit may be used in conjunction with a 230V solenoid valve and a trickle valve or ‘petcock’ to effect a urinal flush
system. Set the water flow rate by adjusting the petcock so that the cistern just fills within the chosen Off Delay period of
the detector. Note that in this mode, the photocell should be disabled, unless using the dual output unit.
Note: The MS1221PF/PSM and 230V solenoid valve can be ordered as a complete product, Ex-Or part nos.
UC1221PF/PSM.
Lights ON = Lights OFF =
Upper Threshold
Lower Threshold
Natural
Light
Level
Duration of
Off Delay
Note that when the natural light
level exceeds the ‘upper threshold’
value, the lights do not immediately
turn off. They will turn off only when
the upper threshold has been
exceeded for the duration of the
programmed Off Delay.
Active Mode
Passive Mode
Occupancy Area Occupied = Area Unoccupied =
Technical Data
OPERATING VOLTAGE: 230V 50Hz (UK & Europe)
RECOMMENDED CIRCUIT PROTECTION: 10 Amps
2
TERMINAL CAPACITY: 2 x 2.5mm
MAXIMUM LOAD: 6 Amps per output [not exceeding 10A in total]
MAXIMUM RECOMMENDED MOUNTING HEIGHT: 3 metres
RANGE: Cone-shaped detection
pattern, diameter (at floor level)
= 2.4 x mounting height
PHOTOCELL: Adjustable 50-5000 lux via Programmer
OFF DELAY 1 & 2: Adjustable via Programmer - factory pre-set to 20 mins
Each output is independently adjustable.
COLOUR: White RAL9010
MATERIAL: Flame retardant PC/ABS
WEIGHT: 210g (Flush version); 187g (Surface version)
IP RATING: 3X
Dimensions
100mm
10mm deep
(Flange)
62mm
deep
(behind ceiling)
6.0m
2.5m