icoms TMA-122 User manual

Avenue Einstein 11/B | B-1348 Louvain-la-Neuve (Belgium) | T + 32 10 45 41 02 | F + 32 10 45 04 61 | [e-mail]
ICOMS DETECTIONS SA
TMA Sensor
User guide
TMA-122 configuration
Tune up procedure
CONTENTS
CONTENTS 1
TABLE OF FIGURES 2
THEORY OF OPERATION 3
PRODUCT DESCRIPTION 4
1 DELIVERY 4
2 LABELS LOCATION 4
2.1 IDENTIFICATION LABEL 4
2.2 SERIAL NUMBER 4
3 SETTINGS 4
SAFETY PRECAUTIONS 5
CABLING 6
PARAMETERS DESCRIPTION 7
1 DISTANCE “MOVEMENT” 7
2 DISTANCE “PRESENCE” 7
3 MAXIMUM RELAY HOLD TIME 7
4 SENSITIVITY SETTING 7
5 SELF-MONITORING 7
6 RF CHANNEL 7
CONFIGURATION – TUNE UP 8
1 ENCODER 1 8
2 ENCODER 2 8
LED INDICATOR 9
1 IN NORMAL OPERATION 9
2 WHEN THE SELF-MONITORING DETECTS AN ERROR 9
INSTALLATION GUIDE 9
1 GENERAL 9

2
2 ASSEMBLY AND MOUNTING 9
3 KEY POINTS 10
4 DETECTION ZONE 12
5 IMPACT OF THE TILT ANGLE 12
6 SPECIFIC INSTALLATION CASES 13
6.1 CURVED LINE 13
6.1.1 Situation 13
6.1.2 Best practices 14
6.2 INSTALLATION ON A HORIZONTAL POLE 15
COUNTING FUNCTION 15
WHAT TO TRY IF... 15
TECHNICAL FEATURES 16
WARRANTY 16
DECOMMISSIONING 17
FURTHER INFORMATION 17
1 LEGAL NOTIFICATION 17
2 VERSION 17
3 THE MANUFACTURER: 17
TABLE OF FIGURES
FIGURE 1: DELIVERY 4
FIGURE 2:TMA-122 HV RADAR CONNECTOR -WEIPU SP2112/P7 6
FIGURE 3: TMA-122 LV AND MV RADAR CONNECTOR -WEIPU SP1712/P9 6
FIGURE 4: FRONT FACE 8
FIGURE 5: ENCODERS &LEDS8
FIGURE 6: FRONT FACE WITH/WITHOUT STICKER 8
FIGURE 7: BRACKET ELEMENTS 9
FIGURE 8: BRACKET ASSEMBLY 10
FIGURE 9: BRACKET POSITION,PARALLEL TO THE TRAFFIC 10
FIGURE 10: 45° TILT ANGLE 10
FIGURE 11: VIEW FROM THE FRONT OF THE SIGNAL HEAD:RADAR IS LEANING 10
FIGURE 12: TRAFFIC LIGHT IS ON THE LEFT SIDE FROM THE CARS 11
FIGURE 13: VIEW FROM BEHIND -INSTALLATION SET WHEN THE TRAFFIC LIGHT IS ON THE LEFT SIDE FROM THE CARS. 11
FIGURE 14: PAY ATTENTION TO OBSTACLES 11
FIGURE 15: SIDE MOVEMENTS 11
FIGURE 16: STATIONARY +MOVEMENT ZONE (0-10 M)/MOVEMENT ZONE (0-60 M), H=3,5 M,45°TILT ANGLE. 12
FIGURE 17: IMPACT OF THE TILT ANGLE 13
FIGURE 18: DETECTION AXIS ON CURVED ROAD 13
FIGURE 19: STOP LINE AT AN ANGLE 14
FIGURE 20: RADAR INSTALLATION AT THE LEFT SIDE OF THE VEHICLES 14
FIGURE 21: HORIZONTAL POLE –OVERVIEW 15
FIGURE 22 :TMA-122 ON A HORIZONTAL POLE,NOT TILTED 15

3
THEORY OF OPERATION
The TMA is a microwave sensor for traffic management (traffic data collection, intersection management, warnings,
public lighting management), available in different configurations according to the applications.
The TMA-122 is a microwave sensor for intersection management. The output consists of 2 relays which
can be triggered on movement and/or when vehicles stop at the stop line. The product can count the vehicles
which are passing the stop line.
1. Unpack the unit and check the following items are in the box:
A. Radar with rear side socket
B. Cable with connector
C. Mounting bracket
D. User’s guide and tune up procedure
2. Set the encoders according to your choice for the different parameters (see “Tune up procedure”). For specific
TMA configurations, the setup is made through RS-232. The encoders are then inoperable.
3. Place the sticker on the front face.
4. Assemble the unit with the bracket (see “Tune up procedure”).
5. Place the radar on the field according to configuration and to the specific tune-up procedure.
6. Connect the cable according to CABLING, p. 6.
7. Power the radar.
8. The LEDs will come on when a vehicle is detected and matches the conditions of the chosen parameters.

4
PRODUCT DESCRIPTION
1 DELIVERY
Some configurations may have a different cable and/or bracket. See tune up procedure for more details.
Figure 1: delivery
2 LABELS LOCATION
2.1 IDENTIFICATION LABEL 2.2 SERIAL NUMBER
3 SETTINGS
Depending on the TMA configuration chosen, the settings are either done using 2 encoders with 16 positions each
or using RS-232 serial communication. See “Tune Up Procedure” for the parameter settings.
Do not remove
the labels
A
D
C
B

5
SAFETY PRECAUTIONS
Only skilled and instructed persons should carry out work with the radar product. Experience and knowledge about
safety procedures in the following areas may be relevant:
•Working with mains power
•Working with modern electronic and electric equipment
•Working at height
•Working at the roadside or highways
Please follow these safety precautions:
-Make sure the electricity supply is within the range shown on the label and the manual of the product.
-All connections must be made whilst the power supply is switched off.
-Ensure the wiring is correct as shown in the manual before switching on the power supply.
-Never use a damaged radar or cable.
-Opening the outer casing is deemed dangerous and will void all warranties.
-Ensure the radar is mounted correctly. The screws and bolts of both radar and bracket must be firmly
tightened. The radar needs to point to the region of interest for proper detection.
-Ensure the radar is configured properly.
WARNING: For the HV version of the radar, a Residual Current Device (RCD), also known as the Residual Current
Circuit Breaker (RCCB), with a tripping current not exceeding 30 mA must be installed in the supply circuit.

6
Figure 3: TMA-122 LV and
MV radar connector -
Weipu
SP1712/P9
CABLING
CAUTION: positive security/fail safe relays - contacts given for powered radar.
HV
(100-240 V AC)
PIN nr
Color
Function
1
BLUE
~ Power Supply
2
BROWN
~ Power Supply
3
YELLOW/ GREEN
EARTH
4
WHITE
COM relay 1
5
GREY
NO relay 2
6
YELLOW
COM relay 2
7
PURPLE
NO relay 1
USER’S OUTPUTS
Resistive load: 30 V AC 0.3A - 60 V DC 0.3A
Option 250 V relay: 250 V AC – 30 V DC – 0.3 A
REMARKS
•Make sure the plug is fully inserted in the socket and the cap is firmly tightened on the socket.
•Please disconnect the radar from power before maintenance intervention.
LV (12-60 V DC – 10-30 V AC) & MV (21-75 V DC – 15-54 V AC)
PIN nr
Color
Function
1
RED
Power ~ (AC), + (DC)
2
BLUE
Do not connect
3
BLACK
Power ~(AC), - (DC GND)
4
BROWN
NC relay 2
5
WHITE / VIOLETT
COM relay 1
6
GREY
NO relay 1
7
YELLOW
NC relay 1
8
GREEN
COM relay 2
9
PINK /ORANGE
NO relay 2
Figure 2:TMA-122 HV radar
connector - Weipu SP2112/P7

7
PARAMETERS DESCRIPTION
Depending on the chosen TMA configuration, the settings are made using two encoding wheels with 16 positions
each and/or using an RS-232 link.
The parameters described here are for the TMA-122 configuration. Other parameters may apply to other TMA
configurations.
See further in this document, p. 8 for the parameters setting.
1 DISTANCE “MOVEMENT”
The TMA-122 detects the approaching movement at a distance of about 60 meters from the installation point. It is
possible to limit this distance to 20 m with encoder 1 (see p. 8). When an approaching movement is detected in
this area, the radar toggles the relay 2. When there is no vehicle or only stopped vehicle(s) (no movement), the
relay is not activated.
Vehicles moving away from the sensor are not detected.
2 DISTANCE “PRESENCE”
The TMA-122 detects the approaching moving and stopped vehicles at a distance of 10 or 15 m from the installation
point. When a movement is detected in this area, the radar toggles the relay 1 and tracks the vehicle. It holds the
relay activated as long as the vehicle is in the detection area, be the vehicle moving or not.
Vehicles moving away from the sensor are not detected.
3 MAXIMUM RELAY HOLD TIME
This setting defines the maximum hold time for the relay. After this time, the radar will reset the relay, regardless
of the presence of a vehicle.
4 SENSITIVITY SETTING
The factory setting fulfills the requirements of the majority of the installations. If the position or the size of the
detection area is not satisfactory, change first the position of the radar (tilt angle and/or height of installation).
5 SELF-MONITORING
The self-monitoring monitors the following parts of the hardware:
- Micro-wave device (VCO)
- Mixers
- Analogic format channel
- Analogic/digital converter
- Micro-processor oscillator
- Code running
When a failure is detected, the relays are permanently actuated and the LEDs flashing show an error code (see
further, p. 9). The radar is reset after 1 hour.
6 RF CHANNEL
This parameter allows to shift the radar’s frequency. If two units face each other, they must be put on different
channels, so they don’t interfere with each other.

8
Encoder 2
CONFIGURATION – TUNE UP
You can set different parameters through 2 encoders allowing 16 positions each.
Figure 4: front face
Figure 5: encoders & LEDs
1 ENCODER 1
Besides red LED, at the left facing the housing
Parameter
Value
Encoder position
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Distance “movement” (relay
2)
60 m 20 m
Distance “presence” (relay
1)
10 m 15 m 10 m 15 m
Max. relay hold time (min)
2
4
8
16
2
4
8
16
2
4
8
16
2
4
8
16
Factory setting = 0
2 ENCODER 2
Besides green LED, at the right facing the housing
Parameter
Value
Encoder position
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Sensitivity
Normal
Low
Self-monitoring
Active
Inactive
Active
Inactive
RF channel
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
Factory setting = 0
Figure 6: front face with/without sticker
Once you have set the requested radar
parameters, place the sticker on the front face to
guarantee its water tightness.
ATTENTION: manufacturer’s warranty does not
cover radars without sticker!
Encoder 1

9
LED INDICATOR
1 IN NORMAL OPERATION
•The red LED shows the state of the relay 2.
•The green LED shows the state of the relay 1.
2 WHEN THE SELF-MONITORING DETECTS AN ERROR
The two LEDs blink quickly (2 or 4 quick flashes followed by a 1 sec break, depending on the detected error):
1. Type 1 failure: Code execution and internal micro-controller state consistency. If a problem is detected, the
system is reset.
2. Type 2 failure: Micro-controller oscillator monitoring. If a problem is detected, the system enters in “fault
mode”. The LEDs show a code by blinking twice followed by a 1 second pause.
3. Type 3 failure: Microwave oscillator and receiver chain. If a problem is detected, the LEDs show a code by
blinking four times followed by a 1 second pause.
The reset takes1,500 milliseconds.
INSTALLATION GUIDE
1 GENERAL
•Installation’ height: min. 3.5 m - max. 4.5 m
•Offset between pole and the roadside (O):
max. 2 m
•Distance between pole and the stop-line (D):
min. 2 m
2 ASSEMBLY AND MOUNTING
Figure 7: bracket elements
1. Set the appropriate parameter values with the encoders and place the sticker!
Bracket n°1
TMA-122
Bracket n°2
Pavement

10
2. Place the upper right screw to assemble bracket n°2 with
bracket n° 1, with the upper right screw, allowing bracket nr
2 to rotate.
Figure 8: bracket assembly
3. Fix the radar on bracket n°2 (see Figure 7).
4. Once you are behind the radar, place the second screw in
the lower right hole. Don’t tighten it completely. The radar
bracket n°1 must be parallel to the approaching lane. See
orange arrow example on Figure 9.
Figure 9:
bracket
position,
parallel to
the traffic
5. Incline the radar bracket n°2 in direction to the pavement
until the notch appears (Figure 10).
Figure 10: 45° tilt angle
6. Firmly tighten the screws.
Figure 11: view from the front of the signal head: radar is leaning
3 KEY POINTS
•The tilt angle must be in direction of the pavement, which means the side where the traffic light is. When you
are in front of the radar: if the traffic light is on the right side of the vehicles, the housing of the radar has to be
inclined to the right (Figure 9 & Figure 11). If the traffic light is on the left side of the vehicles, the housing of
the radar has to be inclined to the left (Figure 12 & Figure 13).
Pavement