Siemens Matchtec IRM270C Mode D'emploi page 3

The detector reacts to movements by people:
− the passive infrared section (PIR) detects changes in
the infrared energy which is received;
− the microwave section (MW) detects movements.
Extraordinarily reliable detection is made possible
thanks to the intelligent digital signal processing and
system linkage (Matchtec). Only unambiguous and ver-
ified movement signals in the two partial systems will re-
sult in an alarm signal.
The detector reacts with greatest sensitivity to move-
ments that are diagonal to the active zones (direc-
tions shown by arrows, Fig. 1 and 2).
The detector is designed to achieve optimum re-
sponse coupled with the suppression of false alarms.
Nevertheless, it is recommended that the following
points be observed (Fig. 10):
− Do not direct the zones at sources of heat or cold,
nor at points subject to strong sunlight.
− Direct the zones towards uniform references.
Zones which are directed towards heaters (includ-
ing floor heating equipment) can reduce the proba-
bility of detection of movement.
− If it is impossible to avoid positioning the detector
above heaters, you must keep them at a minimum
distance of 1.50m away!
Installation
The detector is intended for use in inside rooms.
Do not remove the printed circuit board from the de-
tector. There is a danger that it may be damaged!
1. Open the detector (Fig. 3).
2. Mount the detector on a stable vertical surface.
− Select the height (h) above the floor according to Fig.
1 or 2.
− Corner mounting and 45° installation (right / left) are
possible without any accessories (see Fig. 4A).
− Detector must be inclined at an angle of 2° when
mounting above 3m in order to detect crawling intru-
ders and to ensure the detection range (see Fig. 4B).
− The cable is introduced through one of the knock-out
points A (see Fig. 5).
3. Wire the connections as shown in Fig. 7.
4. For strain relief on the connection cable, pierce the
lug B (Fig. 5) and fix the cable with a cable cleat.
5. Select the desired settings as shown in the section
on "Programming".
6. Replace the cover, screw it down with the screw pro-
vided (Fig. 3).
Detector breakage/removal monitoring Fig. 6
If the detector is forcibly removed from the mounting
surface, a sabotage alarm is triggered.
For this, the detector base must be secured with an
additional screw.
Control inputs
Fig. 7
Walktest remote control Terminal 3
Remote control of the walktest indicator. Use switch
DIP1 to select the polarity of the control signal.
Set/unset remote control Terminal 4
Remote control of the set/unset state. Use switch DIP4
to select the polarity of the control signal.
An open control input is HIGH (internal pull-up); for
control with active HIGH, a resistor (typ. 2kΩ, max.
47kΩ/detector) must be switched to 0V.
Programming
You can use switches DIP1 to DIP4 to select the follow-
ing functions:
DIP ON OFF (default) Function
Potential for walktest ON
1
LOW (0V) HIGH (+12V)
at terminal 3
2
see "PIR−Detection see PIR−Detection PIR−Sensitivity of motion PIR−Sensitivity of motion
sensitivity" table detection
3
Potential for unset at ter-
4
LOW (0V) HIGH (+12V)
minal 4
5
see MW−Sensitivity see "MW−Sensitivity MW−Sensitivity of motion MW−Sensitivity of motion
Settings" table detection
6
Detector system function
7
PIR PIR and MW
for disarmed
8
−− −− not used
PIR−Detection sensitivity
DIP2 DIP3 Sensitivity / Application
Range
High values Stricter detection re-
ON ON
18m quirements
Standard (default)
OFF OFF Residential, offices
18m
Increased stability Rooms with low
ON OFF
18m sources of interference
Harsh environ- Rooms with consider-
ment able interference ef-
OFF ON
fects
Reduced range.
008483_a_−−_−− p3
All manuals and user guides at all-guides.com
IRM270C Instructions for use
Setting note for PIR−Detection sensitivity
If the longest wall in the room is less than 5m, do not
use the «High values» sensitivity setting!
MW−Detection sensitivity
DIP5 DIP6 Sensitivity
ON ON High
OFF OFF
ON OFF
OFF ON Low
Setting note for MW−Detection sensitivity
For adjusting the MW−range start with low sensitivity
(see chapter commissioning).
Detector system function DIP7
In the disarmed mode, the MW-Section is switched off if
DIP7 = ON. In this mode, the detector operates as a
passive infrared detector (PIR).
If the detector is operated with an armed/disarmed line,
we recommend DIP7 = ON (MW-Section OFF when
disarmed). For walktest, the MW detection system is
switched back on.
LED indications
Control line state
Arming, Walktest,
terminal 4 terminal 3
Change to set
any any
Set
Walktest OFF Alarm stored
Unset Unset
Walktest ON Self-test at
lit
flashing
for 2.5s
Memory displays
Set memories are shown in the unset with walktest OFF
state.
The alarm memory (LED flashes red) shows the result
of the last set period. This memory is always reset when
the system is next in the set state.
Self-test
The self-test is carried out whenever the supply voltage
is first applied.
A fault is indicated by the red LED lit constantly (this is
only visible when the walktest is switched on).
Commissioning
1. Switch on the supply voltage.
During the self-test and the start-up phase with walktest
ON, the red LED flashes slowly (for about 20 seconds).
− When the red LED goes out, the detector is ready.
− If the red LED lights continuously, there is a fault in the
detector.
2. Carry out the walk test, i.e. check the complete moni-
toring area to make sure the alarm triggers:
The microwave part must detect movements through-
out the complete active area → yellow LED.
Walk upright across the active area at a rate of about 1
step per second in the direction shown by the arrows
(Fig. 1 or 2) and pause.
The detector must also trigger an alarm if the active
area is crossed near to its edges.
Sealing the detector
If sealing of the detector is prescribed, apply an adhe-
sive seal over the gap between the base of the detector
and the cover.
Maintenance
Check the function of the detector regularly (at least
once per year) − carry out a walktest, check for dirt and
inspect the fixture.
Troubleshooting
Detector does not react
− Check whether the mirror is inserted.
− Check the supply voltage and polarity.
No alarm display on the detector
− Check programming, control signals and polarities.
No alarm
− Check the alarm relay.
− Check the alarm line.
Continuous or intermittent alarm
− Check the sensitivity setting.
Switch the detector to walk test, mask the detector win-
dow with a sheet of cardboard and wait 30 seconds:
− If the alarm indication disappears:
− ascertain the sources of alarm in the active area,
− remove the cause of the alarm,
Range (approx.)
− check the evaluation mode,
25m
− reposition the detector or tilt it through 2°.
− If the yellow LED lights up even though there is no
18m
movement:
− MW section is possibly too sensitive, or interference
12m
6m
− track down possible sources of interference and
− re-position the detector.
Insufficient range
− Check the mounting height and inclination (Fig. 1 or
2).
− Walk at right angles to the active area!
− Check the IR window for soiling.
− Check the detection sensitivity setting.
Options
Curtain mirror IRS272 Fig. 2
The IRS272 curtain mirror has overlapping active
zones forming a monitored area to provide secure mon-
itoring against intrusion. At installation heights above
3m, mount the detector with a downward inclination of
Detector LED LED
2°.
state state
red yel- Changing the mirror:
low
Remove the wide-angle mirror from the cover using a
Memory reset − −
No. 1 screwdriver (Fig. 8) and replace it with an IRS272
curtain mirror.
Memory set − −
MW−Detection
Mounting bracket IRUM20, IRUM30 Fig. 9
The mounting brackets IRUM20 (wall-mounting) and
start-up IRUM30 (ceiling mounting) enable the detector to be ro-
tated through ±45° and tilted through +10°/−15°.
Walktest alarm
slow
on
flashing
setting of the mounting bracket.
Approvals
CE
R&TTE 1999/5/EC
C−Tic
Technical data
Supply voltage
− max. ripple (0...100Hz)
− voltage monitoring
Current consumption (at 8...16V
− quiescent
− max. (with LED on)
Microwave (MW)
Alarm output:
− semiconductor relay
− alarm holding time
− contact load rating
− series resistance
Tamper contact
Control inputs
Walking speeds:
− wide angle mirror (standard)
− curtain mirror IRS272 (option)
Ambient conditions:
− operating temperature
Fig. 3
− storage temperature
− air humidity (EN60721)
− EMC resistance
− housing protection EN60529, EN50102 IP41 / IK02
Details for ordering
IRM270C
IRS272 Curtain mirror (4 pcs)
IRUM20 Mounting bracket, wall
IRUM30 Mounting bracket, ceiling
Anti-tamper seal
is coming from outside the detection zone;
eliminate them;
Use the PIR−sensitivity settings «High values»,
«Standard» or «Increased stability».
The monitored zone can differ from that shown in
Fig. 1 or 2, depending on local conditions and the
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It is essential to comply with national approval con-
ditions which relate to the use of the product.
8.0 to 16.0V
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alarm at <7.2±0.5V
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):
DC
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opens at alarm / fault
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30V / 100mA (ohmic load))
. . .
DC
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30V / 100mA (ohmic load)
. . . . . . . .
DC
LOW ≤1.5V / HIGH ≥3.5V
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−20°C...+55°C
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−20°C...+60°C
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non condensing
up to 2GHz 30V/m
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compliance
compliance
compliance
(12V nom.)
DC
2.0Vpp
DC
7.5mA
13mA
10.525GHz
2...3s
<35Ω
0.2...4.0m/s
0.2...4.0m/s
<95%rH,
A5Q00007825
571 733
562 247
562 250
503 251