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Nortech PD230 Enhanced Vehicle Detector User Manual

Dual channel microprocessor based detector designed specifically for parking and vehicle access control applications.
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NORTECH INTERNATIONAL (PTY) LTD
All rights reserved.
Copyright © 2009
Document No.: 302UM0017_01
Date of issue: July 2010
This document is for information only and unless otherwise indicated it is not to form part of any contract.
In accordance with the manufacturer's policy of continually updating and improving design, specifications contained
Nortech International (Pty) Ltd
PO Box 4099
Willowton Hub
Pietermaritzburg
3200 South Africa
Tel: (033) 345 3456
Fax: (033) 394 6449
E-mail:
mkt@nortech.co.za
PD230 Enhanced
Vehicle Detector
USER MANUAL
herein are subject to alterations without notice.
32A Wiganthorpe Road
Pietermaritzburg
3201 South Africa
Reg. No. 98/1095
Int. Tel: +27 33 345 3456
Int Fax: +27 33 394 6449
URL:
www.nortech.co.za

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Summary of Contents for Nortech PD230 Enhanced Vehicle Detector

  • Page 1 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 Int. Tel: +27 33 345 3456 Fax: (033) 394 6449 Int Fax: +27 33 394 6449 E-mail: mkt@nortech.co.za...

  • Page 2: Table Of Contents

    Table of Contents INTRODUCTION ........................5 TECHNICAL DATA ........................7 2.1 Functional Data .......................... 7 2.2 Electrical Data ..........................7 2.3 Environmental Data ........................8 2.4 Mechanical Data ......................... 9 2.5 Approvals ........................... 9 OPERATING INSTRUCTIONS ....................10 3.1 Hardware Set-up ........................10 3.2 Switch Setting Selections ......................
  • Page 3 Appendix B.2 IEC 60950-22:2005 - Northern Europe ............... 38 Appendix B.3 IEC 60950-1:2005 – Overvoltage Category............38 APPENDIX C - REQUEST FOR TECHNICAL SUPPORT FORM ..........39 302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 3 of 37...
  • Page 4 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! WARNING: 5.

  • Page 5: Introduction

    INTRODUCTION The “PD230 Enhanced Two Channel Inductive Loop Vehicle Detector” is a dual channel microprocessor based detector designed specifically for parking and vehicle access control applications. The PD230 Enhanced detector has been designed using the latest technology in order to meet the requirements of a vast number of parking applications in terms of operating conditions. A number of internal functional options are available to the user.
  • Page 6 302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 6 of 37...

  • Page 7: Technical Data

    TECHNICAL DATA Functional Data Tuning Fully automatic Self-tuning range 20 to 1000 µH Sensitivity Four step switch selectable: 0.02% ∆ L/L High 0.05% ∆ L/L Medium-High 0.10% ∆ L/L Medium-Low 0.50% ∆ L/L Frequency Four step selectable: Frequency dependent on loop size Automatic Sensitivity Boost Switch selectable Modes...

  • Page 8: Environmental Data

    PD234 models: 1 VA Maximum at 12V Relay Contact Rating 2 x Relays rated - 5A @ 230 VAC For ambient temperatures above 60 ° C De-rate the re lay maximum current as per graph below Opto-Isolated Output rating 33 V 50 mA Note - Opto-Isolated Outputs are available on request.

  • Page 9: Mechanical Data

    Mechanical Data Housing material ABS blend Mounting Position Shelf or DIN rail mounting Connections 11-pin submagnal type ( JEDEC No. B11– 88 ) Size of Housing 78mm ( High ) x 41mm ( Wide ) x 80mm ( Deep ) 80 mm 40.6 mm Approvals...

  • Page 10: Operating Instructions

    OPERATING INSTRUCTIONS Hardware Set-up The PD230 Enhanced dual 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.

  • Page 11: Automatic Sensitivity Boost

    The sensitivity of the detector allows the detector to be selective as to the change of inductance necessary to produce an output. There are four sensitivity selections and are set as follows: - Channel1 Channel 2 High Medium-High Medium-Low 3.2.3 Automatic Sensitivity Boost Automatic sensitivity boost is a mode which alters the undetect level of the detector.
  • Page 12 302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 12 of 37...

  • Page 13: Internal Link Selection

    Internal Link Selection WARNING - ONLY SERVICE PERSONNEL MAY OPEN THE UNIT TO CHANGE INTERNAL SETTINGS! There is one 3 way link located inside the PD230 Enhanced detector housing, which is used to alter the mode of operation of the detector. The link has been placed inside the unit to avoid incorrect operation due to selection by an unauthorised operator.
  • Page 14 If a loop fault exists the Channel LED will come on and flash indicating a fault. If the fault is self-healing the detector will continue to operate and the LED will continue to show the historical fault. The detector must be reset or power removed to clear the historical fault information.

  • Page 15: Principle Of Operation

    PRINCIPLE 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 pair of wires called a loop feeder.

  • Page 16: Modes Of Operation

    ASB operates as follows. When ASB is disabled the undetect level is dependent on the sensitivity setting of the detector. Hence as the detector is made less sensitive, the undetect level will be reduced accordingly. When the ASB is enabled the undetect level will always be the same irrespective of the sensitivity setting and will be equivalent to the undetect level when the sensitivity is on maximum setting.

  • Page 17: Ab Logic Presence Mode (Barrier Operation)

    In the pulse mode the detector will give a pulse of 150 millisecond duration, when a vehicle enters the loop (Pulse on Detect) (a pulse of 250 millisecond is available on request. MOQ applies). (Pulse on un-detect is available on request. MOQ applies) 4.3.3 AB Logic Presence Mode (Barrier Operation) Internal link LK1 shorted from Pin 1 to Pin 2.
  • Page 18 302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 18 of 37...
  • Page 19 Case 2: (AB LOGIC Presence Mode) Forward direction A - Vehicle Enters Loop1 B - Vehicle Enters Loop2 C - Vehicle Exits Loop 1 D - Vehicle Exits Loop 2 This is the correct forward operation for Presence AB Logic Case 3: (AB LOGIC Presence Mode) Reverse direction...

  • Page 20: Ab Logic Pulse Mode (Counting Logic)

    Case 5: (AB LOGIC Presence Mode) Forward direction A - Vehicle Enters Loop1 B - Vehicle Enters Loop2 C - Vehicle Starts to reverse D - Vehicle Exits Loop 2 E - Vehicle Exits Loop 1 This case should not happen but it does occasionally Case 6:...
  • Page 21 If a vehicle enters Channel 1 Loop and then proceeds to Channel 2 Loop, a 150 ms pulse will be issued on Channel 1 relay output as the vehicle leaves Channel 1 Loop. If a vehicle now enters Channel 2 Loop and then proceeds to Channel 1 Loop, a 150 ms pulse will be issued on Channel 2 relay output as the vehicle leaves Channel 2 Loop.
  • Page 22 302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 22 of 37...

  • Page 23: Response Times

    Case 4: (AB LOGIC Pulse Mode) Reverse direction A - Vehicle Enters Loop2 B - Vehicle Enters Loop1 C - Vehicle Exits Loop 2 D - Vehicle Exits Loop 1 This is the correct reverse operation for Pulse AB Logic Case 5: (AB LOGIC Pulse Mode) Forward direction...
  • Page 24 The response times of the PD230 Enhanced Detectors has been adjusted to prevent false operation in electrically noisy environments, but retains adequate response to vehicles in parking and vehicle access control applications. 302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 24 of 37...

  • Page 25: Installation Guide

    Only use CE approved 11 pin relay bases such as Nortech Part No. CTR119090 or equivalent. As an alternative to the 11 pin relay base, Nortech has a 11 pin wiring harness, Nortech Part No. 302FT0041, which can only be used in SELV voltage (less than 60 V dc or less than 42 V ac) applications.

  • Page 26: Crosstalk

    Running feeder cables in their own slots, separated by at least 300 mm. For additional information on Crosstalk refer to the section “Crosstalk Prevention” in the DU100 Diagnostic Unit User Manual Nortech Document No. 895UM0001 5.2.3 Reinforcing The existence of reinforced steel below the road surface has the effect of reducing the inductance, and therefore the sensitivity, of the loop detection system.

  • Page 27: Sensing Loop Geometry

    It is good practice at time of installation to construct adjacent loops with alternate three and four turn windings. For additional Information on loop geometry refer to the following documents: • “INDUCTIVE LOOP VEHICLE DETECTION” - Nortech Doc. No. MKT0001. • “TRAFFIC DETECTION” - Nortech Doc. No. MKT0002. •...
  • Page 28 A similar length is allowed to reach the detector and these two free ends are twisted together to ensure they remain in close proximity to one another. (Minimum 20 turns per metre). Maximum recommended feeder length is 100 metres. It should be noted that the loop sensitivity decreases as the feeder length increases, so ideally the feeder cable should be kept as short as possible.
  • Page 29 4 mm Figure 5.2 Slot details 302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 29 of 37...

  • Page 30: Configuration

    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 PD230 Enhanced detector models, on other models the pin assignments may change. WARNING: 9.

  • Page 31: Pd232 Enhanced Detector: English

    PD232 Detector: English Enhanced 11 – PIN CONNECTOR WIRING for: 302FT0026 302FT0041 11 PIN Function WIRING HARNESS Connector WIRE COLOUR Pin No. 230 V AC ± 10% Live Black Neutral 20 mA 50 Hz Blue Channel 1 Loop Twist this pair Blue Channel 1 Loop...

  • Page 32: Applications

    APPLICATIONS The PD230 Enhanced dual 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 ) •...

  • Page 33: Customer Fault Analysis

    CUSTOMER FAULT ANALYSIS Fault Finding FAULT CAUSED BY REMEDY Red LED does not glow on If the indicator is off then there Check power feed to the power up is a fault on the power unit. connection to the unit. After the initial tune period the Unit cannot tune to the loop Check loop installation...

  • Page 34: Du100 - Detector Diagnostic Unit

    DU100 – Detector Diagnostic Unit The DU100 Diagnostic unit is a hand-held test instrument that has been designed to operate with the PD230 Enhanced detector to provide installation/service personnel with positive verification of the correct operation of the vehicle detector and its installation. The following parameters may be verified using this instrument: 1.
  • Page 35 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. 8.2.1.2 Frequency drift The PD230 Enhanced Detector can handle environmental conditions that can cause the frequency to drift up to at a rate of approximating 1% ∆L/L per minute.

  • Page 36: Functional Test

    Functional Test To test a detector, connect it to an inductive loop with a total inductance in the order of 300 microhenries. (This may be achieved in the workshop by winding (x) turns of wire on a non-metal former of diameter (y)). x = 19 turns 0.25 mm wire y = 238 mm (9.4 inches) Bring a small metal object approximately the size of a matchbox close to the loop coil.

  • Page 37: Appendix A - Fcc Advisory Statement

    APPENDIX A - FCC ADVISORY STATEMENT NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

  • Page 38: Appendix B - Installation Outdoors

    APPENDIX B – INSTALLATION OUTDOORS Appendix B.1 IEC 60950-22:2005 – Outdoor cabinet If the PD230 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.

  • Page 39: Appendix C - Request For Technical Support Form

    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. 895UM0001 for details of how to operate the DU100.
  • Page 40 __________________________________________________________________________ _______ POWER SUPPLY DETAILS: Nominal Voltage: _______ V Minimum Voltage: _______ V Maximum Voltage: ________ V AC or DC ? ______________ If AC then the Frequency _______ Hz LOOP DETAILS Channel 1 Channel 2 Size of loop: ____ m by ____ m Size of loop: ____ m by ____ m Shape of loop: _____________________...
  • Page 41 __________________________________________________________________________ _________________________________________________________________________________ In the feeder cable how many twists per meter are there?____________ (should be more than 20 per metre) Are there any other cables close to these feeder cables? (Yes/No) _____ If yes please give details: _________________________________________________________________________________ ___________________________________________________________________ FEEDER CABLE and LOOP DETAILS Channel 1 Channel 2 Is the loop and feeder cable one continuous...
  • Page 42 READINGS FROM DU100 DIAGNOSTICS UNIT On arrival at site Time since last retune: ___________ days _____________ hours Reason for Retune (Reset: manual or power failure, Short circuit, Open circuit, Indeterminate, Inductance change of greater than 15 % ∆ L/L (typical) _______________________________________________ Channel 1 Channel 2...
  • Page 43 __________________________________________________________________________ ____________ 302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 43 of 37...

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