Instrukcja obsługi Vimar 20850

Vimar detektor ruchu 20850

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161
BUILDING AUTOMATIONS
Motion detector
20850, 19850, 16850, 14850
Passive infrared motion detector, KNX standard, grey – 2 modules.
Functionality
This device detects motion within the sensor's range of action.
When the movement has been validated by an internal filter, a
"presence message" is sent over the KNX bus and the green
LED lights up. This is done according to the set brightness
threshold. Note that the green LED does not light up every time
a movement is detected, but only when a "presence message"
is sent.
The device is capable of activating a movement event from an
external source or from any KNX device.
A twilight sensor is also present which causes the lights to be
turned on or off according to daylight brightness levels. It is
possible to set two types of threshold (upper and lower) and to
perform various operations according to the current level.
These actions allow individual or cyclical On/Off messages to
be sent. It is also possible to postpone message sending to
validate the effective level of the light sensor. For MASTER-
SLAVE operation with multiple motion detectors, refer to
the explanation of KNX object no. 2 "External trigger".
Behaviour after bus on/off
Bus off: data are not saved.
Bus on: motion detection is enabled after 30 seconds,
the time necessary for the IR sensor to stabilise.
Behaviour after reset
As for bus on.
Communication objects
List of existing communication objects
20850 19850 16850 14850
Communication objects
KNX objects: motion detector in detail.
Motion detector communication objects
Number ETS name Function Description Length Flag 1
C R W T U
0Motion
detector Movement switch (if the "Motion Detector" parameter is enabled) - a bit that goes to "1" if a
movement is detected 1 bit X X
1Motion
detector Forced Disabled
(if the "Motion Detector" parameter is enabled) to deactivate the motion
detector via the bus so that the device does NOT send multiple messages
on detecting a moving body
1 bit X X
2Motion
detector External trigger
(if the "Motion Detector" parameter is enabled) if there are multiple PIRs
set as "Motion detector" controlling the same light, choose one as MAS-
TER and associate its "Command on movement" object with the "Trigger"
objects of the other SLAVE PIRs in the same group as the relay to be con-
trolled (so for the SLAVE PIRs the "Command on movement" object will
be unused). This way each SLAVE PIR will be able to reset the time count
of the PIR, which via the "Command on movement" object efMASTER -
fectively activates/deactivate the light relay of the same group. For exam-
ple, in a long corridor this ensures that the light does not go out during the
time it takes to walk from the detection zone of one PIR to that of another
1 bit X X
4 Twilight Switch if the "Twilight" parameter is enabled: the light turns on/off according to
daylight brightness levels 1 bit X X
5 Twilight Forced Disabled
(if the "Twilight" parameter is enabled) to deactivate the twilight sensor via
the bus so that the device does not send multiple messages on reaching
the set daylight brightness threshold
1 bit X X
C R W T = Communication; = Read; = Write; = Transmission; = Enable updateU
Motion detector: communication objects
163
BUILDING AUTOMATIONS
Motion detector: communication objects
ETS text Available values Comment
[Default value]
Action at lower
threshold
Nothing The PIR operates with a
lower and upper threshold;
this parameter defines the
behaviour below the lower
threshold
Off message
On cyclic message
Off cyclic message
[On message]
Action at upper
threshold
Nothing The PIR operates with a
lower and upper threshold;
this parameter defines the
behaviour below the upper
threshold
On message
On cyclic message
Off cyclic message
[Off message]
Cyclic period
1 s...1 h If a cyclic action is selected,
otherwise it is ignored
[1 m]
Object "Forced
disable"
Disable To disable twilight sensor via
the bus
Enable
[Disable]
Disable twilight
function with
On message If "forced disable" object is
enabled. The message can
be set to force deactivation
of the sensor
Off message
[On message]
Lower threshold
10%...100%
Lower threshold value
[20%]
Upper threshold
10%...100%
Upper threshold value
[90%]
Confirmation time 1 s...5 min. Time delay for action when
the daylight brightness value
exceeds the threshold value
[10 s]
"Twilight function" parameters
For automatic power on/off according to daylight brightness
levels.
"Twilight function" parameters
Detection performance: the data are approximate (the device is not a
LUX measuring instrument)
Twilight function
Note.
MASTER-SLAVE operation: if you want the light to be turned on
by the SLAVE PIRs and turned off by a PIR defined as MASTER,
in the relay group you must associate the "Command on
movement" object of the MASTER PIR and the "Trigger" objects
of the SLAVE PIRs (in which the "command on movement"
object will remain unused).
Motion detector: FAQs
(20850, 19850, 16850, 14850)
1. The sensor has turned the light on but it does not
detect me if I walk in front of it and after a while the light
goes off.
You need to set a lower value for the "Movement timeout"
parameter, which is the delay time before further ON com-
mands are sent if the sensor continues to detect movement
2. Once the sensor has turned oFF the light, it does not
turn it on even when someone walks directly in front of
it.
You need to set a lower value for the "Minimum wait before
sending new message" parameter, which is the delay time
before further ON commands are sent if the sensor contin-
ues to detect movement.
162
BUILDING AUTOMATIONS
Motion detector: communication objects
ETS text Available values Comment
[Default value]
Enable motion
detector
[Enable] To turn on a light when
motion is detected
Disable
Enable
twilight function
Enable To turn on a light when day-
light brightness falls below a
certain value
[Disable]
ETS text Available values Comment
[Default value]
Motion detector
independent from
light
Yes - No If "Yes" the daylight bright-
ness threshold is ignored
(see "Brightness threshold")
[No]
Motion detector
below brightness
threshold
10%...100% If the motion detector de-
pends on the light: defines
the threshold below which
motion is to be detected
(0%= operates only in the
dark)
[50%]
Send message
on movement
How to send
a presence message
cyclically
[in the case of move-
ment]
Minimum wait
before sending new
message
1s...1 h
If send message "on
movement" is selected,
this is the delay time before
sending the "On" message
on detecting movement after
the sensor has sent a move-
ment end "Off" message
[5 s]
Cyclic period
1s...1 h If send message "cyclically"
is selected
[1 m]
Movement timeout
1s...1 h Time for which the sensor
must not detect any type of
movement if one has just
been detected
[30 s]
Wait after move-
ment finish
Disable
Sensor off timeEnable
[Disable]
Time wait after
movement finish
1s...5 m If "Wait after movement
finish" is enabled, this is the
time the device waits after
detecting the end of move-
ment and before sending an
"Off" (if the corresponding
parameter is enabled)
[10 s]
ETS text Available values Comment
[Default value]
Send OFF mes-
sage on movement
finish
Yes
No
[Yes]
Object "forced
disable"
Disable To bring up an object to be
used for disabling the mo-
tion detector via the bus
Enable
[Disable]
Disable motion
detector with
Off message If the
"forced disable" object is
enabled.
It is possible to set the
message to force sensor
deactivation
On message
[On message]
General parameters
"Motion detector" parameters
To turn on the light when a moving person is detected.
General settings
"Motion detector" parameters
ETS reference parameters
General
You can choose to enable a different device function. The two
functions (Motion detector and Twilight sensor) must not be
enabled together.
Motion detector
Continues
Continued

Specyfikacje produktu

Marka: Vimar
Kategoria: detektor ruchu
Model: 20850

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