RMM10 LOOP DETECTOR
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RMM10 LOOP DETECTOR
ENGLISH
Indicators
General description
Green LED: ON steady indicates that the device is powered up
The RMM10 loop detector consists of an electronic control board connected to a
magnetic coil (not included) made using electrical cable with the specifications
described later.
Through a microprocessor system, the RMM10 detects the inductance value
generated by the magnetic coil, which is installed under the ground.
The presence of a metallic mass of a certain entity generates a frequency
variation that is recognised by the RMM10 inductive detector, which according
to how it is configured generates one or more pulse or vehicle presence output
commands.
Yellow LED: ON steady indicates that the system is ready
Red LED: ON steady indicates presence of a vehicle on the coil (alarm); if the
vehicle is not present and the red LED is ON, carry out a manual or automatic
system calibration.
Red LED: blinking slowly, indicates that the coil connected is unsuitable for the
system (measured frequency lower than minimum frequency allowed).
Set dip 1 and dip 2 to obtain a higher frequency or reduce the number of
windings.
Red LED: blinking rapidly, indicates that the coil connected is unsuitable for the
system (measured frequency higher that maximum frequency allowed).
Set dip 1 and dip 2 to obtain a lower frequency or increase the number of
windings.
RMM10 loop detector technical specifications
Voltage
12-24 VDC / VAC
Current
30 mA (min) - 75 mA (max)
Relay RE1 contact
1 A @ 24 V AC/DC
Relay RE2 contact
1 A @ 24 V AC/DC
Inputs (connection to other RMM10 boards)
IN connector
Outputs (connection to other RMM10 boards)
OUT connector
Indicators
Green LED
Yellow LED
Red LED
Dimensions/Weight
120x65x25 mm / 130 g
Guarantee
24 months
Important: the relay output cannot be used to control mains voltage loads
directly.
The RMM10 loop detector is designed to command automatic access control
systems such as electric barriers or gates, industrial doors and automatic
passageways of all kinds.
RMM10 LOOP DETECTOR
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RMM10 LOOP DETECTOR
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Making the induction coil
Calibrating the system for the vehicles used
For the RMM10 detector to operate in a stable manner, a number of parameters
must be respected when making the magnetic coil.
2
Use a multi-polar cable (at least 2 wires with diameter 1.5 mm and length no
less than 10 m) with the wires subsequently connected together in series. The
cable joint necessary to make the connection between the coil and the control
electronics should be soldered and closed in a sealed box using insulated
copper wire with 20 twists per metre, and if possible shielded if there are any
mains cables in the vicinity (recommended length 5 m).
As an alternative to the multi-polar cable, it is possible to use an insulated
2
copper wire with minimum cross-section 1.5 mm and length no less than 20 m.
In this case joints can be avoided by connecting one end of the wire to the LA
terminal on the control board (fig. 3), making the necessary number of windings
and connecting the other end to the LB terminal, and twisting the coil/RMM10
board connector (20 twists per metre).
The shape of the coil is usually rectangular with the longer sides perpendicular
to the direction of vehicle passage and corners at 45° (fig. 1).
The channel for laying the induction coil should be 10-15 mm in breadth and
around 30 mm in depth (do not exceed 50 mm).
After laying the coil and coil/control board connector cable, fill the channel with
an epoxy resin composite or with bitumen (take care when using hot material for
sealing the coil as it may damage the cable).
If it is necessary to install two adjacent coils that are not connected in series
(Fig.2) but independent, leave at least 2 metres of space between them to
prevent interference, and set the two control boards to different frequencies (see
dip switch settings).
There are two possible methods for adapting the system to the coil and the
vehicles used:
Example
LA
Perimeter >10 m windings = 2
Perimeter <10 m windings = 3,4
Perimeter < 6 m windings = 4
LB
Fig. 1
Series connection
LA
LB
LB
LA
Se
to control unit
The shorter side of the coil must be of length 50 (ideal) – 100 cm.
Fig. 2
Automatic mode
With the system powered up, carry out a test using the type of vehicle the
system has to detect (a vehicle with a low chassis requires lower sensitivity than
a vehicle with chassis farther from the ground, and the greater the metallic area
of the vehicle the lower the sensitivity required to detect that vehicle).
Therefore, when calibrating the system, we recommend using the vehicle with
the most critical characteristics.
If the system is unable to detect the presence of the vehicle, increase sensitivity
by turning the SENS trimmer clockwise, then press button PL1 for about 3
seconds, until the red and yellow LED’s begin to blink, then release button PL1.
The yellow LED will blink (reading and storing the new settings) and then remain
on in “ready” mode. Pass the vehicle over the coil again and if unsuccessful
increase the sensitivity and repeat the manual calibration procedure.
Manual mode
Set the sensitivity trimmer (SENS) to minimum (anti-clockwise) and check that
the coil is not occupied by a vehicle.
Press button PL1 for about 3 seconds until the red and yellow LED’s begin to
blink, then release button PL1. The yellow LED will blink (reading new settings)
and then remain on in “ready” mode.
Press button PL2 for about 1 second. The yellow LED and the red LED will
begin to blink.
Release button PL2. The red LED with go out and the yellow LED will continue
to blink.
Position the vehicle over the coil and increase the sensitivity by turning the
trimmer clockwise until the red LED comes on. If necessary, turn the trimmer
clockwise a little more.
Remove the vehicle from above the coil. The red LED will go out and the yellow
LED will continue to blink. Press button PL2 until the yellow LED goes out.
Release button PL2: the yellow LED will begin to blink and then remain on
(steady) in “ready” mode.
RMM10 LOOP DETECTOR
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RMM10 LOOP DETECTOR
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System calibration
Dip-switch settings
There are two ways of calibrating the system (meaning the reading of the coil
frequency, the configuration of the dip switches set by the user and the reading
of the sensitivity adjustment):
Dip1/Dip2: set the operating frequency to adapt the oscillator frequency to the
type of coil installed (size and n° of windings) (tab.1).
Automatic mode
Switch the system off and on again: the green LED will come on indicating
voltage present, while the yellow LED will blink and then remain on in “ready”
mode.
DIP1
OFF
ON
OFF
ON
DIP2
OFF
OFF
ON
ON
FREQUENCY
HIGH
MEDIUM HIGH
MEDIUM LOW
LOW
tab.1
Manual mode
ith the system on, if the dip-switch settings and/or sensitivity adjustments are
changed, the system must be recalibrated.
Press button PL1 for about 3 seconds. The red and yellow LED’s will begin to
blink. Release button PL1. The yellow LED with blink (reading and storing the
new settings) and then remain on in “ready” mode.
Dip3 (BOOST): when set to ON, this adds extra time to the time the relays (RE1
and RE2) are active. Not valid if the relays are configured in pulse mode
(example: a heavy vehicle will present a metallic mass variation between tractor
and trailer while passing over the coil (due to the tow bar).
System reset
Dip4 (FILTER): if set to ON, this introduces a delay between vehicle detection
and relay switching (vehicle transverse passage discrimination).
Reset after fault: press buttons PL1 and PL2 together for at least 3 seconds.
When the red LED starts blinking more rapidly, release the buttons. The system
will reset the fault alarm, if solved, then read and store the new configuration
and set itself to ready mode.
Dip5 ON: if the vehicle remains on the coil for more than 5 minutes, relays RE1
and/or RE2 (present mode) reset to “coil free”, whereas when set to OFF, the
relays are active until the vehicle moves away. The red LED will remain ON
(alarm) for the whole time the coil is occupied.
Dip6 ON: sets relay RE2 to pulse mode.
Dip6 OFF: sets relay RE2 to normal mode (presence).
Dip8 ON: sets relay RE1 to pulse mode.
Dip8 OFF: sets relay RE1 to normal mode (presence).
Dip7 ON: relay RE2 generates a pulse when the coil is free of the vehicle. Viceversa, relay RE2 generates a pulse when the coil is occupied by the vehicle
(only valid for relay RE2).
(See tab. 2, dip-switch 6, 7 and 8 settings).
RMM10 LOOP DETECTOR
DIP
SWITCH
RELAY
AT REST
COIL OCCUPIED
8
7
ENGLISH
COIL FREE
8
7
NO NC
NO NC
NO NC
C
C
C
6
4
6
5
4
4
RE1 and RE2
switch when the
vehicle occupies
the coil and
return to rest with
coil free.
5
NO NC
NO NC
NO NC
C
C
C
RE2
3
3
8
7
8
7
3
8
7
8
7
NO NC
NO NC
NO NC
NO NC
C
C
C
C
RE1 generates a
pulse when the
vehicle occupies
the coil.
RE2 switches
when the vehicle
occupies the coil
and returns to
rest when the coil
is free.
RE1 switches
when the vehicle
occupies the coil
and returns to
rest when the coil
is free.
RE2 generates a
pulse when the
vehicle occupies
the coil.
RE1
6
6
DSW6 OFF
DSW7 DSW8 ON
4
RE2
5
6
4
6
5
4
5
NO NC
NO NC
NO NC
C
C
C
3
3
8
7
3
8
7
NO NC
8
7
NO NC
NO NC
RE1
C
C
6
DSW6 ON
DSW7 OFF
DSW8 OFF
4
RE 2
C
6
5
4
6
4
5
5
4
5
NO NC
NO NC
NO NC
NO NC
C
C
C
C
3
3
8
7
3
8
7
NO NC
3
8
7
NO NC
Electrical connections
NOTE
6
5
After setting the dip-switches (Dip-switch settings paragraph), adjust the
sensitivity trimmer (SENS) to halfway. Then make the connections between the
buried induction coil and the RMM10 control board and control centre as shown
in the circuit diagram (fig.3), then power-up the system.
The green LED will come on, indicating voltage present, while the yellow LED
blinks (reading settings and frequency) and then remains on in “ready” mode.
If it is necessary to change some parameter (dip-switches or sensitivity trimmer)
press button PL1 for about 3 seconds. When the red and yellow LED’s begin to
blink, release button PL1. The yellow LED will blink (reading and storing new
settings) and then remain on in “ready” mode.
ON
PL 1
PL 2
LG
LR SENS
FUNZIONI
RIVELATORE DI MASSE METALLICHE RMM10
RE2
12-24V
8
7
NO NC
ENGLISH
8
7
RE1
DSW6 OFF
DSW7 DSW8 OFF
RMM10 LOOP DETECTOR
RE1
Conn. IN/OUT
Spira Induttiva
LA Se LB
Test
NO NC
RE1
C
DSW6 ON
DSW7 OFF
DSW8 ON
C
6
4
C
6
5
4
RE1 and RE2
generate a pulse
when the vehicle
occupies the coil.
C
6
4
5
6
5
4
5
NO NC
NO NC
NO NC
NO NC
C
C
C
C
ALIMENTAZIONE
12-24 VDC/VAC
12-24
VDC/VAC POWER
SUPPLY
RE2
3
3
8
7
3
8
7
RELAY
PULSE/PRESENCE
RELE' 22IMPULSO/PRESENZA
3
8
7
NO NC
NO NC
NO NC
C
C
C
RE1
DSW6 ON
DSW7 ON
DSW8 OFF
6
4
6
5
4
NO NC
6
5
4
NO NC
4
5
5
NO NC
NO NC
RE2
C
C
3
8
7
C
C
3
8
7
3
8
7
3
8
7
NO NC
NO NC
NO NC
NO NC
C
C
C
C
RE1
DSW6 ON
DSW7 ON
DSW8 ON
6
4
6
5
6
4
5
6
4
5
4
5
NO NC
NO NC
NO NC
NO NC
C
C
C
C
RE2
3
3
3
RE1 switches
when the vehicle
occupies the coil
and returns to
rest when the coil
is free.
RE2 generates a
pulse when the
coil is free.
RE1 generates a
pulse when the
vehicle occupies
the coil.
RE2 generates a
pulse when the
coil is free.
3
tab.2
Spira Induttiva
Induction
coil
RELE' 11IMPULSO/PRESENZA
RELAY
PULSE/PRESENCE
fig.3