Nortech International (Pty) Ltd PO Box 4099 32A Wiganthorpe Road Willowton Hub Pietermaritzburg Pietermaritzburg 3201 South Africa 3200 South Africa Reg. No: 98/1095 Tel: (033) 345 3456 Fax: (033) 394 6449 Email: mkt@nortech.co.za Int. Tel: +27 33 345 3456 Int. Fax: +27 33 394 6449 URL: www.nortech.co.
Table of Contents 1. INTRODUCTION........................................................................................................................................5 2. TECHNICAL DATA ...................................................................................................................................6 2.1 2.2 2.3 2.4 2.5 3. Functional Data ......................................................................................................................................
APPENDIX A - FCC ADVISORY STATEMENT ................................................................................................25 APPENDIX B – INSTALLATION OUTDOORS..................................................................................................26 Appendix B.1 Appendix B.2 Appendix B.3 IEC 60950-22:2005 – Outdoor cabinet..................................................................................26 IEC 60950-22:2005 - Northern Europe ..............................................
WARNING: 1. This unit must be earthed! WARNING: 2. Disconnect power before working on this unit! WARNING: 3. Installation and operation by service personnel only! WARNING: 4. No user serviceable parts inside. Only service personnel may open the unit to change internal settings. Warranty void if cover removed! WARNING: 5. Always suspend traffic through the barrier area during installation and testing that may result in unexpected operation of the barrier. WARNING: 6.
1. INTRODUCTION The PD130 Enhanced Vehicle Detector is a single channel microprocessor based detector designed specifically for parking and vehicle access control applications. The PD130 Enhanced Vehicle Detector has been designed using the most up-to-date technology in order to meet the requirements of a vast number of parking applications (in terms of operating conditions and options available to the user.
2. TECHNICAL DATA 2.1 Functional Data Tuning Fully Automatic Self-tuning range 20 µH to 1500 µH Sensitivity Four step switch selectable High 0.02 %∆L/L Medium High 0.05 %∆L/L Medium Low 0.10 %∆L/L Low 0.
2.2 2.3 2.4 Electrical Data Power requirements 12 V -10% to 24 V +10% (PD134) 120 VAC ± 10% (48 to 62Hz) 230 VAC ± 10% (48 to 62Hz) Requirement: 1.
2.
3. OPERATING PROCEDURE 3.1 Hardware Set-Up The PD130 Enhanced Vehicle single channel parking detector is designed to be shelf or DIN rail mounted, with the controls and visual indicators at the front, and wiring at the rear of the enclosure. The power, loop and relay outputs are all connected to the single 11-pin plug, which is mounted at the rear of the enclosure. 3.2 Switch Setting Selections 3.2.1 Frequency Switch The frequency switches are the lower two switches, switches No. 1 and 2.
3.2.2 Sensitivity The sensitivity of the detector allows the detector to be selective as to the change of inductance necessary to produce a detect. There are four sensitivity selections: SW4 Off On Off On SW3 Off Off On On High Medium-High Medium-Low Low 3.2.3 Automatic Sensitivity Boost Automatic sensitivity boost is a mode which alters the un-detect level of the detector. This mode is selected by Switch No.
3.2.7 Reset Switch The detector automatically tunes to the inductive loop connected to it when the power is applied, whether on initial installation or after any break in power supply. Should it be necessary to retune the detector, as may be required after changing any of the switches or after moving the detector from one installation to another, momentary operation of the RESET switch will initiate the automatic tuning cycle. 3.
4. PRINCIPAL OF OPERATION The inductive loop vehicle detector senses the presence of a vehicle over an area defined by a loop of two or more turns of wire, laid under the road or pavement surface. This loop of wire is connected to the detector by a twisted pair of wires called a loop feeder. A vehicle passing over a sensing loop causes a small reduction in the inductance of the loop, which is sensed by the detector.
ASB operates as follows: When ASB is disabled, the un-detect level is dependent on the sensitivity setting of the detector. Hence as the detector is made less sensitive, the un-detect level will reduce accordingly. When the ASB is enabled the un-detect level is fixed irrespective of the sensitivity setting and will be equivalent to the un-detect level when the sensitivity is on maximum setting. 4.
5. INSTALLATION GUIDE Optimum functioning of the detector module is largely dependent on factors associated with the inductive sensor loop connected to it. These factors include choice of material, loop configuration and correct installation practice. A successful inductive loop vehicle detection system can be achieved bearing the following constraints in mind, and strictly following the installation instructions.
5.2.2 Crosstalk When two loop configurations are in close proximity, the magnetic fields of one can overlap and disturb the field of the other. This phenomenon, known as crosstalk, can cause false detects and detector lock-up. Crosstalk between adjacent loops operating from different detector modules can be eliminated by: 1. Careful choice of operating frequency. The closer together the two loops, the further apart the frequencies of operation must be. 2. Separation between adjacent loops.
5.4 Sensing Loop Geometry NOTE: 1) The circumference of the loop must not exceed 30 m. 2) The area of the loop must not exceed 30 m² and must not be less than 1 m². 3) The loop must be constructed as detailed below. Sensing loops should, unless site conditions prohibit, be rectangular in shape and should normally be installed with the longest sides at right angle to the direction of traffic movement. These sides should ideally be 1 metre apart.
300mm +/- 2 m Depending on Road Width 300mm 1m SAW CUTS CURB/ROAD EDGE - - 2 m (Road Width = 2 m) MIN DISTANCE APART 3 m (Road Width = 4 m) 1m - - No Limit MAX DISTANCE APART 45° CROSSCUT TO PROVIDE STRESS RELIEF TRAFFIC DIRECTION Figure 5.1 Adjacent loops connected to different detector modules Figure 5.
6. CONFIGURATION WARNING: 8. NOTE 1: The connector PIN assignments vary from model to model. Refer to the label on the side of the unit for connector PIN assignment. The tables below show the PIN assignments for Nortech’s standard PD130 Enhanced models. On other models the pin assignments may change. WARNING: 9. The wiring harness is only rated for SELV voltages (less than 60Vdc or less than 42Vac). If the relays are to switch higher voltages use CE LVD approved 11 pin sockets NOTE 2: 6.
6.2 PD132 Enhanced Detector - Order number 301FT0101 11-pin connector wiring for PD132 DETECTOR - Order number 301FT0101 301FT0041 11 PIN FUNCTION Wiring Harness Connector Wire COLOUR Pin No. Red 1 Live Power supply 230V 10% 50/60 Hz Black 2 Neutral Grey Violet Yellow Brown Blue Blue Green/Yellow Pink White WARNING: 11. 6.
7. APPLICATIONS The PD130 Enhanced single channel detectors can be used in a variety of applications in the parking and door / gate environments: • To arm card readers and ticket dispensers. • As a barrier/gate/door closing detector. • As a barrier/gate/door opening detector (Free exit). • To generate pulses for counting vehicles. Some of the features that make the PD130 Enhanced Detector ideal for these purposes have been described in the preceding paragraphs.
8. CUSTOMER FAULT ANALYSIS 8.1 Fault Finding FAULT CAUSED BY REMEDY Red LED does not glow on power up. If the indicator is off then there is a fault on the power connection to the unit. Check power feed to the unit. After the initial tune period the Green LED flashes (ON for 1 second and OFF for ½ second). Unit cannot tune to the loop due to faulty loop or feeder connection. Check loop installation and connections. Loop may be too small or too large. Recut as per installation instructions.
8.2 DU100 – Detector Diagnostic Unit The DU100 Diagnostic unit is a hand-held test instrument that has been designed to operate with the PD130 Enhanced detector to provide installation / service personnel with positive verification of the correct installation and operation of the vehicle detector. The following parameters may be verified using this instrument: 1. Detector type and version 2. Loop status Display of loop frequency and magnitude of current change of loop inductance %∆L/L. 3.
If the Frequency reading from the DU100 is close to the Maximum Frequency the inductance of the LOOP is too small – you need to add turns to the loop. If the Frequency reading from the DU100 is close to the Minimum Frequency the inductance of the LOOP is too high and you need to remove turns from the loop.
8.3.5 Crosstalk For information about resolving crosstalk refer to the “Theory of Application” section in Diagnostic Unit DU100 User Manual Document No. 895UM0001. 8.4 Functional Test To test a detector, connect it to an inductive loop with a total inductance in order of 300 microhenries. (This may be achieved in the workshop by winding (x) turns of wire on a non-metallic former of diameter (y)). X = 19 turns 0,25mm wire Y = 238mm (9.
APPENDIX A - FCC ADVISORY STATEMENT NOTE: This equipment has been tested and found to comply with the limits of PART 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
APPENDIX B – INSTALLATION OUTDOORS Appendix B.1 IEC 60950-22:2005 – Outdoor cabinet If the PD130 Enhanced Detector is to be installed outdoors it must be installed in a cabinet / housing that complies with the requirements of IEC 60950-22:2005 for a minimum of pollution degree 2. Appendix B.
APPENDIX C –REQUEST FOR TECHNICAL SUPPORT FORM For Technical support please fill in the form below and send it to your supplier. Its is recommended that at installation you complete this form as a record of the Installation. If there is a problem later on you can identify what has changed. For locating faults in “Inductive Loop Vehicle Detector” installations it is highly recommended that you use the DU100 DIAGNOSTICS UNIT. Please refer to the DU100 user manual Doc. No.
POWER SUPPLY DETAILS: Nominal Voltage: _______ V AC or DC ? Minimum Voltage: _______ V Maximum Voltage: ________ V ______________ If AC then the Frequency _______ Hz LOOP DETAILS Size of loop: ___ m by ___ m Shape of loop: _________________________________ Number of Turns: _____ 2 Size of wire used (mm or AWG) _____________ Type of wire insulation and thickness of insulation:_____________ How far below the surface is the loop: __________ mm Are there any metal objects below the loop such as concrete
Are there any other cables close to this feeder cable? If so please give details: _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ FEEDER CABLE AND LOOP DETAILS DC resistance of Feeder plus Loop: __________ ohms Inductance of Feeder plus Loop: __________ Micro Henries Loop and feeder resistance to earth (with detector unplug
Nortech International (Pty) Ltd PO Box 4099 32A Wiganthorpe Road Willowton Hub Pietermaritzburg Pietermaritzburg 3201 South Africa 3200 South Africa Reg. No: 98/1095 Tel: (033) 345 3456 Fax: (033) 394 6449 Email: mkt@nortech.co.za Int. Tel: +27 33 345 3456 Int. Fax: +27 33 394 6449 URL: www.nortech.co.
Table of Contents 1. INTRODUCTION........................................................................................................................................5 2. TECHNICAL DATA ...................................................................................................................................6 2.1 2.2 2.3 2.4 2.5 3. Functional Data ......................................................................................................................................
Appendix B.1 Appendix B.2 Appendix B.3 IEC 60950-22:2005 – Outdoor cabinet..................................................................................26 IEC 60950-22:2005 - Northern Europe .................................................................................26 IEC 60950-1:2005 – Overvoltage Category ..........................................................................26 APPENDIX C –REQUEST FOR TECHNICAL SUPPORT FORM....................................................................
WARNING: 1. This unit must be earthed! WARNING: 2. Disconnect power before working on this unit! WARNING: 3. Installation and operation by service personnel only! WARNING: 4. No user serviceable parts inside. Only service personnel may open the unit to change internal settings. Warranty void if cover removed ! WARNING: 5. Always suspend traffic through the barrier area during installation and testing that may result in unexpected operation of the barrier. WARNING: 6.
1. INTRODUCTION The TD136 Enhanced Vehicle Detector is a single channel microprocessor based detector designed specifically for traffic control applications. The TD136 Enhanced Vehicle Detector has been designed using the most up-to-date technology in order to meet the requirements of a vast number of traffic applications in terms of operating conditions and functional options available to the user.
2. TECHNICAL DATA 2.1 Functional Data Tuning Fully Automatic Self-tuning range 20 to 1500 µH Sensitivity Four step switch selectable High 0.02 %∆L/L Medium High 0.05 %∆L/L Medium Low 0.10 %∆L/L Low 0.50 %∆L/L Frequency Four step switch selectable Frequency dependent on loop size Relay Outputs Presence Relay Fault Relay Presence Relay Fail-safe Presence Time Switch selectable: 1 Second 4 Minutes 40 Minutes No fixed time-out (dependant on inductance change) Approx.
2.2 2.3 Electrical Data Power requirements 12 V -10% to 24 V +10% DC/AC 48 to 62 Hz 120 VAC ±10% (48 to 62 Hz) 230 VAC ±10 % (48 to 62 Hz) Requirement: 1.
2.4 Mechanical Data Housing Material ABS blend Mounting Position Shelf or DIN rail mounting Connections 11-pin Submagnal (JEDEC No. B11-88) Size of Housing 78mm (H) X 41mm (W) X 78mm (D) 2.5 40.6 mm 75.9 mm 77.
3. OPERATING INSTRUCTIONS 3.1 Hardware Set-up The TD136 Enhanced Vehicle Detector is a single channel traffic detector designed to be shelf or DIN rail mounted with the controls and visual indicators at the front and wiring at the rear of the enclosure. The power, loop and relay outputs are all connected to the single 11-pin plug, which is mounted at the rear of the enclosure. 3.2 Switch Setting Selections 3.2.1 Frequency Switch The frequency switches are the lower two switches, numbered 1 and 2.
3.2.2 Sensitivity The sensitivity of the detector allows the detector to be selective as to the change of inductance necessary to produce a detect. There are four sensitivity selections and are set as follows: SW4 Off On Off On SW3 Off Off On On High Medium-High Medium-Low Low 3.2.3 Presence Time The presence time is a mode, which allows the detector to have a presence time of no longer than the time set. The mode is selected by switches No.
3.2.4 Delay Time Delay time is a mode in which the output of the detector is delayed by the time specified. If the vehicle leaves the loop before the time has expired, no output will result. The mode is selected by switches No.7 and 8 on the front of the enclosure and is as follows: SW8 Off On Off On SW7 Off Off On On Off 10 secs 20 secs 30 secs 3.2.
4. PRINCIPAL OF OPERATION The inductive loop vehicle detector senses the presence of a vehicle over an area defined by a loop of two or more turns of wire laid under the road or pavement surface. This loop of wire is connected to the detector by a twisted pair of wires called a loop feeder. A vehicle passing over a sensing loop causes a small reduction in the inductance of the loop, which is sensed by the detector.
4.2 Detector Sensitivity Sensitivity of the detection system is dependent on factors such as loop size, number of turns in the loop, feeder length and the presence of metal reinforcing beneath the loop. Sensitivity levels of the TD136 Enhanced Vehicle Detector have been carefully optimized for traffic control applications. The nature of the application determines the required sensitivity, which may be adjusted by means of the sensitivity, switches on the front of the enclosure. 4.
5. INSTALLATION GUIDE Optimum functioning of the detector module is largely dependent on factors associated with the inductive sensor loop connected to it. These factors include choice of material, loop configuration and correct installation practice. A successful inductive loop vehicle detection system can be achieved bearing the following constraints in mind, and strictly following the installation instructions.
5.2.2 Crosstalk When two loop configurations are in close proximity, the magnetic fields of one can overlap and disturb the field of the other. This phenomenon, known as crosstalk, can cause false detects and detector lock-up. Crosstalk between adjacent loops operating from different detector modules can be eliminated by: 1. Careful choice of operating frequency. The closer together the two loops, the further apart the frequencies of operation must be. 2. Separation between adjacent loops.
Joints in the loop or feeder are not recommended. Where this is not possible, joints are to be soldered and terminated in a waterproof junction box. This is extremely important for reliable detector performance. Other forms of joins such as those available in kits, where the joint is properly sealed against moisture, are also permitted. 5.4 Sensing Loop Geometry NOTE: 1) The circumference of the loop must not exceed 30 m. 2) The area of the loop must not exceed 30 m² and must be not less than 1 m².
300mm +/- 2 m Depending on Road Width 300mm SAW CUTS 1 m MIN DISTANCE APART MAX DISTANCE APART - CURB/ROAD EDGE 2 m (Road Width = 2 m) 3 m (Road Width = 4 m) No Limit 1 m 45° CROSSCUT TO PROVIDE STRESS RELIEF TRAFFIC DIRECTION Figure 5.1 Adjacent loops connected to different detector modules Figure 5.
6 CONFIGURATION WARNING: 8. The connector PIN assignments vary from model to model Refer to the label on the side of the unit for connector PIN assignment. NOTE 1: The tables below show the PIN assignments for Nortech’s standard TD136 Enhanced models on other models the pin assignments may change. WARNING: 9. The wiring harness is only rated for SELV voltages (less than 60Vdc or less than 42Vac). If the relays are to switch higher voltages use CE LVD approved 11 pin sockets NOTE 2: 6.
6.2 TD136 Enhanced – 230 VAC Vehicle Detector - Order number 305FT0001 11-pin connector wiring for TD136 Enhanced Vehicle – 230 VAC Detector - Order number 305FT0001 301FT0041 11 PIN FUNCTION Wiring Harness Connector Wire COLOUR Pin No. Power supply Red 1 Live 230V 10% 50/60 Hz Black 2 Neutral Grey Violet Yellow Brown Blue Blue Green/Yellow Pink White WARNING: 11. 6.
7. APPLICATIONS The TD136 Enhanced Vehicle single channel Detector can be used in a variety of applications in the traffic and vehicle control environments. For VA (Vehicle Actuated) or SVA (Semi Vehicle Actuated) traffic intersection control Some of the features that make the TD136 Enhanced Vehicle Detector ideal for these purposes have been described in the preceding paragraphs. For more details on traffic applications, refer to “Traffic Applications Manual”, Document No. MKT0004.
8. CUSTOMER FAULT ANALYSIS 8.1 Fault Finding FAULT CAUSED BY REMEDY Red LED does not glow on power up. If the indicator is off then there is a fault on the power connection to the unit. Check power feed to the unit. After the initial tune period the Green LED flashes (ON for 1 second and OFF for ½ second) Unit cannot tune to the loop due to faulty loop or feeder connection. Check loop installation and connections. Loop may be too small or too large. Recut as per installation instructions.
8.2 DU100 – DETECTOR DIAGNOSTIC UNIT The DU100 Diagnostic unit is a hand-held test instrument that has been designed to operate with the TD136 Enhanced Vehicle Detector to provide installation / service personnel with positive verification of the correct installation and operation of the vehicle detector. The following parameters may be verified using this instrument: 1. Detector type and version 2. Loop status Display of loop frequency and magnitude of current change of loop inductance %∆L/L. 3.
If the Frequency reading from the DU100 is close to the Minimum Frequency the inductance of the LOOP is too high and you need to remove turns from the loop If the detector is operating close to either limit it is possible that either the frequency drift caused by environmental changes or the shift in frequency caused by a large ∆L/L detect will cause the frequency to go outside the limits and cause a retune. 8.2.1.
8.2.1.5 Crosstalk For information about resolving crosstalk refer to the “Theory of Application” section in Diagnostic Unit DU100 User Manual Document No. 895UM0001 8.3 Functional Test To test a detector, connect it to an inductive loop with a total inductance in order of 300 microhenries. (This may be achieved in the workshop by winding (x) turns of wire on non-metal former of diameter (y)). X = 19 turns 0,25 mm wire Y = 238 mm ( 9.
APPENDIX A - FCC ADVISORY STATEMENT NOTE: This equipment has been tested and found to comply with the limits of PART 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
APPENDIX B – INSTALLATION OUTDOORS Appendix B.1 IEC 60950-22:2005 – Outdoor cabinet If the PD136 Enhanced Detector is to be installed outdoors it must be installed in a cabinet / housing that complies with the requirements of IEC 60950-22:2005 for a minimum of pollution degree 2. Appendix B.
APPENDIX C – REQUEST FOR TECHNICAL SUPPORT FORM For Technical support please fill in the form below and send it to your supplier. It is recommended that at installation you complete this form as a record of the Installation. If there is a problem later on you can identify what has changed. For locating faults in “Nortech Inductive Loop Vehicle Detector” installations it is highly recommended that you use the DU100 DIAGNOSTICS UNIT. Please refer to the DU100 user manual Doc. No.
POWER SUPPLY DETAILS: Nominal Voltage: _______ V AC or DC ? Minimum Voltage: _______ V Maximum Voltage: ________ V ______________ If AC then the Frequency _______ Hz LOOP DETAILS Size of loop: ___ m by ___ m Shape of loop: _________________________________ Number of Turns: _____ 2 Size of wire used (mm or AWG) _____________ Type of wire insulation and thickness of insulation:_____________ How far below the surface is the loop: __________ mm Are there any metal objects below the loop such as concrete
Are there any other cables close to this feeder cable? If so please give details: _________________________________________________________________________ _______________________________________________________________________ _________________________________________________________________________ FEEDER CABLE AND LOOP DETAILS DC resistance of Feeder plus Loop: __________ ohms Inductance of Feeder plus Loop: __________ Micro Henries Loop and feeder resistance to earth (with detector unplugged) using a 5
