Product Guide
VITP-PD/IR
Dimming Ceiling Mounted Presence Detector
Contents
Section Contents Page
1 Dimensional information 1
2 Description and operation 2
3 Fixing and wiring 3
4 Programming 6
5
Detection pattern diagrams
6
Fault finding
7
Specification
8
Part numbers
1. Dimensions
11
11
12
12
2. Description & Operation
The VITP-PD/IR presence detector switches are designed to provide automatic control of lighting
loads via the VitessePlus marshalling box. They detect movement using a PIR sensor and turn the
load on. When an area is no longer occupied the load will switch off after an adjustable time out
period.
The detector also has an integral light sensor which can provide the following optional features:-
With VitessePlus dimming marshalling boxes, the unit can provide a maintained illuminance (or
daylight linking) feature. The internal light sensor measures the light level in an area and will
automatically adjust the output of the luminaries, via the marshalling box, to maintain a
constant, adjustable lux level. Please note that this function only works with VitessePlus
dimming marshalling boxes using either DSI or analogue (1-10V) dimming ballasts.
―Lux hold off‖ with non-dimming marshalling boxes, to prevent lighting coming on when a person
first enters the area if there is sufficient ambient light present (only available using the DDLCDHS programming handset - please see below).
―Lux switch off‖ with non-dimming marshalling boxes, to switch lighting off during occupancy if
the light level rises above a certain lux level in an area, which is sometimes required if ambient
light affects the area during certain times of the day (only available using the DD-LCDHS
programming handset - please see below).
When the unit is first powered up the PIR sensor will always detect immediately regardless of
whether the room is occupied or not.
An integral IR sensor in the unit allows the additional functions to be used in conjunction with
remote control handsets, there are several available:-
User Handset (Part No. UHS) the following functionality is available:-
Override the detector on or off (so lighting can stay on or off).
Act as a conventional dimmer - with dimming marshalling boxes only.
Change the maintained illuminance lux setting - with dimming marshalling boxes only.
User Handset 3 (Part No. UHS3) the following functionality is available:-
Override the detector on or off (so lighting can stay on or off) - no dimming override available.
User Handset 3/2 (Part No. UHS3/2) the following functionality is available:-
Override the detector off (so lighting can stay off) - no on override or dimming override available.
Programming Handset (Part No. DD-LCDHS) the following additional functionality is available for
commissioning purposes:-
Setting the time delay.
Sensitivity (range) adjustment.
Walk test LED - to check that the detector is picking up movement in the area.
Set the maintained illuminance lux setting on dimming marshalling boxes.
Set ―lux hold off‖ and ―lux switch off‖ levels on non-dimming marshalling boxes.
If remote control handsets are requested by the end user, it is usually recommended that the UHS
range or the UHS3 handset is supplied. The DD-LCDHS programming handset should only be used
by specifically trained personnel for commissioning purposes only.
2
3. Fixing & Wiring
1. Connect a Cat 5 (RJ45) patch lead from the back of the sensor to the relevant port on the
VitessePlus marshalling box. An additional RJ45 connector is provided to daisy chain
sensors together when being used with non-dimming marshalling boxes.
2. The detector should be sited so that the occupants of the room fall inside the detection pattern
shown in section 5, at a recommended ceiling height of 2.8m. Note that the lower the sensor is
installed the smaller the detection range will be, subject to the parameters shown on the
diagram.
3. Mount using one of the two options above overleaf.
4. On the side of the unit, use a small screwdriver to set the SENSITIVITY adjuster to maximum
(fully anticlockwise); the LUX level to maximum (fully anti-clockwise), and the TIME to
minimum (fully clockwise).
5. Power the unit up - the load should come on immediately.
6. Vacate the room or remain very still and wait for the load to switch off (this should take no
more than 2 minutes).
7. Check that the load switches on when movement is detected.
8. If required, adjust the sensitivity level down to reduce the range of detection.
9. For dimming applications the LUX adjuster determines the maintained illuminance level. When
the LUX is set to maximum (fully clockwise), maximum output will be seen from the dimming
ballasts. Adjust this down to get a lower output if required.
10. Select the time using the adjuster, fully anticlockwise is the maximum.
11. Using the UHS or UHS3 infra-red handset: the override on button turns the unit on
permanently; the override off button turns the unit off permanently; the cancel button cancels
the overrides. When an override is selected an LED will flash behind the lens inside the unit.
The UHS handset can also be used to set the lux levels - please refer to Section 4 (page 6) for
further details.
12. Using the DD-LCDHS programming handset; all the above parameters can be set - please
refer to Section 4 (page 7 and 8) for further details.
3
3. Fixing & Wiring (continued)
FLUSH FIXING
Warning - be careful bending
springs when mounting unit.
SURFACE FIXING
1 2
Hole Ø64mm
2 1
50mm or 60mm fixing centres
When mounting the detector:-
Avoid direct sunlight entering the sensor.
Do not site within 1m of forced air heating or ventilation.
Do not site within 1m of any lighting.
Do not fix to a vibrating surface.
4
Pull out spring tab and rotate
spring arm as shown
2 x VitessePlus RJ45 Connections
for Cat 5 patch leads
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