GAMMA
instabus
Technical product information
February 2012
UP 258D11 OPTISENS OFFICE Presence detector / motion detector with lighting control
5WG1 258 2DB11
Siemens AG
UP 258D11, 8 pages
Technical manual
Infrastructure & Cities Sector, Building Technologies
Control Products and Systems
© Siemens AG 2012
Update: http://www.siemens.com/gamma
P.O. Box 10 09 53, D 93009 Regensburg
Subject to change without further notice
2.13.1.6/5
Installation and wiring
Mounting site
The device is designed for ceiling mounting.
Recommended mounting height:
2,5m – 2,8m
Brightness measurement in particular
The daylight measurement determines an average
brightness value in the room, which can differ from the
brightness on the worktop. You should therefore avoid
mounting sites with extreme light ratios.
If the detector is fitted near lights with a high proportion
of indirect light, the artificial light level at the detector
mounting point must not exceed the wanted nominal
lighting level in the room. This can be compensated by
increasing the separation between the light cone and the
detector. For constant lighting control, direct artificial
light on the detector should be avoided.
Presence motion detection in particular:
Normally, the switching pattern is determined by people
in the detector's catchment area.
In exceptional cases, however, it can be switched on
inadvertently through "outside factors". Accordingly,
potential "sources of interference" should be considered
or removed during planning or before mounting.
Basics:
•
The PIR sensor reacts to temperature differences.
•
The lower the temperature difference between the
ambient temperature and the moving object, the less
sensitive the analysis. In other words, moving objects
will not then be detected as efficiently and the catch
ment area is restricted.
Note:
•
There must be an unobstructed line of sight to the
person in the catchment area. People behind walls,
etc. (including glass) cannot be detected!
•
Obstacles such as party walls, plants or shelves can
limit the catchment area.
•
Hanging lights cause shadows in the catchment area if
they are mounted in the immediate vicinity of the pres
ence detector.
Interference factors to be avoided:
•
Rapid temperature changes in the vicinity of the detec
tor, caused by fan heaters being switched on or off,
fans, etc., simulate motion.
•
Lights being switched on or off in the immediate
catchment area (mainly incandescent and halogen
lamps) simulate motion.
•
Moving objects such as machines, robots, hanging
posters, falling flower petals, hot paper from laser
printers, animals, etc.
•
The mounting site must not be exposed to vibrations
or motion.
Mounting
The following mounting options are possible:
•
Flush mounting (A) with screw fixing in a flush mount
box
•
Flush mounting (A) with fixing claws in suspended
ceiling
•
Surface mounting (B) in the surface mounted housing
(see accessories)
Figure 3: Mounting options
Connection of the detector to the bus
Connecting:
Plug wires into the bus terminal. Ensure you have
stripped the insulation back!
Push the bus terminal on the plug in the device (see
figure 4)
Disconnecting:
Separate the bus terminal from the device (use a screw
driver if necessary)
Separate the wires from the bus terminal by turning.
