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2 3 1 2 1 2
1
2 3 4
1
2 3 4
1
2 3 4
Re 2
Switch 3 for monostable or bis-
table function (switch to "on" for
bistable function)
Switch 4 for public or normal
function (switch to "on" for pu-
blic function)
3
Re 1
Supply Voltage: 12 - 24 V stabilized DC
or 24 V AC
Yellow
Green
White
Red/brown
Programming buttons for
realys 1 - 2
Detector inputs
Yellow
Green
White
Red/brown
Detector
How to use IR-2ML with vari-
ants
Description
IR-2ML (incl variants) is a two-channel programmable IR receiver
with two voltage-free alternating relay switches. The receiver can
be programmed with all GewaLink channels, 4096 codes and Infra-
code. Alternatively the receiver can be set in a position where the
relays are activated irrespective of which channel is transmitted
(Public Function). The receiver relays can independently be set for
bistable (latching) or monostable (nonlatching) function.
Mounting
Snap o the lid and unscrew the frame from the base plate. Dis-
connect if necessary the detector cable so that the lid with the
detector is not in the way when the receiver is connected. Fasten
the base plate to the wall with the screw and connect all leads to
the circuit board.
Detector Connection
The wires are colour-coded. Connect the wires as in the gure. If
older types of detctors with only 3 wires will be used the receiver
must be modied. (Please contact GEWA for more information). Be
careful when connecting the leads! Making the wrong connection
may damage the equipment. It is possible to connect up to two
detectors.
Relay Connection
The receiver has two voltage-free alternating relay switches which
are connected to terminal blocks Re 1 and Re 2. See technical data
for max relay load. When connecting inductive load for instance
motors and relays, an interference suppression device should be
used.
Supply Voltage
Connect the power supply to the connection block between Re 1
and Re 2. The supply voltage for the receiver should be 12 - 24 V
stabilized DC (-5% +20%) or 24 V AC (+/- 20%). When using DC, note
the polarity.
Bistable Function
Use switch 3 to get a monostable or a bistable relay function. Switch
to "ON" for a bistable function and to "OFF" for a mono-stable fun-
ction.
Public Function
Public function means that the receiver accepts all transmitted chan-
nels within the GewaLink system, 4096 codes or Infra-code irrespec-
tive of which channel or code is transmitted. A channel or a code
(any channel or code can be used) must however be programmed
before the public function can be used. This function can be useful in
situations when it isn´t necessary for the user to keep track of which
channel is used for a certain function. NOTE! This function cannot be
used if there are more receivers within a visible area because all the
receivers will be aected at the same time. Choose public/normal
function by means of switch 4. Switch to "ON" for public function and
to "OFF" for normal function.
Programming
Decide whether the relay is to have a bistable or a monostable
function by using switch 3 on the printed circuit board. Then
decide whether the relay is to have normal or public function by
using switch 4. Press the transmitter channel which you want to be
programmed at the same time as you press programming button 1.
The receiver relay is activated and the indicator lamp ashes twice
thus conrming the programming. Relay 1 is now programmed.
Do the same thing for the second relay of the receiver but this time
using programming button 2 and another transmitter channel and
so on. If you are not satised with the selected channel repeat the
process. Warning! The actual relay is activated during programming.
GewaLink channels 0-127 (channel 62 has no function), 4096 codes
and Infra-code can be programmed. NOTE! The range is reduced if
the detector eye is covered or in any other way obscured by curtains
or furniture for example.
Cleaning
Clean the case of the receiver using some washing-up liquid. Use
only a damp rag, not a wet one.
Technical Data
Supply Voltage: 12 - 24 V stabilized DC (-5%
+20%) or 24 V AC (+/- 20%)
Max Current Consumption: 70 mA
Max Load each Relay: 4 A resistive load at 24 V AC/
DC
3 A inductive load at 24 V AC
2 A inductive load at 24 V DC
Total Max Load all Relays: 100 VA (UL, CSA)
Max Detectors: 2
Programming Channels: GewaLink channels
0-127 (channel 62 has no
function), 4096 codes and Infra-
code. Infra-code applies from
serial number: 382763.
Ambient Temperature Range: -20° - +35°C, ( -4° - +95°F)
User enviroment: Indoor; IR-2ML, IR-2MLOD, IR-
2ML NO
Outdoor (IP-55); IR-2MLU,
IR-2MLUOD
Product life: 10 years
2(4)
2


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