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M oTe C Lap Beacon Manual

Contents

Introduction ..............................................................1

Overview ...................................................................2

Operation ............................................................................................................2

ID Number ..........................................................................................................3

Lap Beacon Use .................................................................................................4

Split Beacon Use ................................................................................................4

Verifying Operation .............................................................................................5

Beacon Transmitter ...................................................7

Position ............................................................................................................... 7

Spacing between Transmitters............................................................................ 7

Mounting .............................................................................................................7

Aiming / Range ...................................................................................................7

ID Number Adjustment........................................................................................ 8

LED.....................................................................................................................8

Power.................................................................................................................. 9

Specifications......................................................................................................9

Beacon Receiver ......................................................11

Mounting ........................................................................................................... 11

Range / Aiming .................................................................................................11

Glass................................................................................................................. 11

Sun Light...........................................................................................................11

ID Number ........................................................................................................11

LED................................................................................................................... 12

Wiring................................................................................................................ 13

Output Signal .................................................................................................... 13

ECU / Dash Setup.............................................................................................13

Specifications.................................................................................................... 14

Trouble Shooting .....................................................15

Check List : Basic Operation............................................................................. 15

Check List: Operational Problems..................................................................... 16

Summary of content (21 pages)

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MoTeC Lap Beacon Manual Contents Introduction ..............................................................1 Overview ...................................................................2 Operation ............................................................................................................ 2 ID Number .......................................................................................................... 3 Lap Beacon Use ...................................................................
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 Copyright - Electronic Performance Systems Pty Ltd - 1998 The information in this document is subject to change without notice. No responsibility will be taken for the consequences of any inaccuracies occurring in this manual.
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MoTeC Introduction Introduction This manual covers the operation of the MoTeC Lap Beacon.
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2 Overview Overview The MoTeC Lap Beacon consists of a Beacon Transmitter and a Beacon Receiver. The Beacon Transmitter is mounted beside the track and the Beacon Receiver is mounted in the vehicle and connected to a Display or Data Logging system or to an Engine Management System. The Lap Beacon system is used to mark the start of a Lap. This can be used by a display system to show the driver lap times and lap number and can be used by a data logging system for lap time and start of lap information.
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MoTeC Overview 3 Orientation The transmitter and receiver must be oriented as shown below: Orientation Transmitter ( Mounted Track Side ) Direction of Travel Black lens this side Receiver ( Mounted in Vehicle ) Infrared Beam 20 to 25m Maximum Range The MoTeC Lap Beacon has a range of up to 25m (80ft). The range depends on the alignment of the transmitter and receiver. For operation up to 25m (80ft) both the transmitter and receiver must be aligned within 2° of optimum.
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4 Overview • Note that the power to the Beacon Receiver and Beacon Transmitter must be cycled before a number change will take effect. • To avoid damage to the units and to ensure that the power is cycled, disconnect the power from the units before changing the number.
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MoTeC Overview 5 connected device, typically a MoTeC ADL or MoTeC ECU. The value is encoded in the pulse width sent to the connected device. Split beacons are generally only suitable for private practice, however beacon mode 9 has been allocated specifically for split beacon use. It is important to ensure that only the beacons for split usage are operating on mode 9 otherwise unexpected beacon signals may be received.
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MoTeC Beacon Transmitter 7 Beacon Transmitter Position The beacon transmitter may be placed at any point around the track. • It is recommended that the beacon transmitter is always placed in the same position at a particular track, this avoids offsets when data from a previous session needs to be compared with the current data. If the same position cannot be used then the MoTeC Interpreter software can compensate for the offset in the beacon position.
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8 Beacon Transmitter • For operation up to 20m (65ft) the beam must within 5° of parallel to the road surface. Beam Pattern The approximate beam pattern is shown below. The pattern shows the limits of operation, when the beacon receiver is within 2° of axial to the beam. Notice that at distances greater than about 20 m (65 ft) the beam becomes narrower which is why the angle of the transmitter becomes more critical at longer distances.
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MoTeC Beacon Transmitter 9 • The beacon transmitter will operate when the LED is orange, however the transmitted power is reduced which reduces the operating range. Power The unit should be powered from a 12V rechargeable battery. A small car battery is recommended as it is easily charged and will operate the transmitter continuously for up to 20 days. The battery may also be used as a weight at the base of the mounting system for stability.
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MoTeC Beacon Receiver 11 Beacon Receiver Mounting Mount using the plastic mounting plate attached to the base of the beacon receiver. Do not earth the Case. The receiver mounting should be designed to allow the receiver to be mounted at either side of the vehicle, depending on which side of the track the transmitter will be located. • Do not mount near a radio transmitter or radio transmitter antenna. • Do not mount near the engine ignition system.
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12 Beacon Receiver zero, this special case allows the receiver to report all beacons with the same Mode setting for split beacon use. The output of the beacon receiver is encoded with the beacon number to allow the beacon transmitter number to be identified, this is normally only required for split beacon use so that the Lap Beacon may be identified. • Turn the power off before adjusting the number, to avoid accidental damage to the electronics and to ensure that the power is cycled before use.
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MoTeC Beacon Receiver 13 Wiring The beacon receiver signal wire should be connected to a Digital Input on a MoTeC ADL Dash/Logger or MoTeC ECU Do not run the wiring near the engine ignition system. The receiver must be powered by 8V from an ADL or ECU. The receiver may be damaged if connected directly to battery voltage.
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14 Beacon Receiver Specifications Electrical Operating Voltage Range: 6V to 9V Current Consumption: 20 mA typical
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MoTeC Trouble Shooting 15 Trouble Shooting Check List : Basic Operation To confirm basic operation of the beacon, check the following : 1. Check the Transmitter LED Green OK Orange The battery voltage is less than 10.5 Volts, the battery requires charging. Red • If the battery voltage is less than 10.5 Volts charge the battery. • If the battery voltage is greater than 10.5 Volts, return the unit to MoTeC for servicing.
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16 Trouble Shooting the switches are set correctly, particularly on the Receiver where the switch identifications are marked under the Lid. LED Off Check that the receiver has 8 volts between the red and black wires. Note that the connected device (ECU or ADL) must have its power turned on. 3. Check the Connected Device (ECU or ADL) If the connected device does not register the beacon • Check that the wiring is OK. • Check the software setup on the connected device.
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MoTeC Trouble Shooting 17 • Check that the Receiver is not aimed through glass, as this can significantly reduce the range. • Check that the Transmitter and Receiver are aligned correctly, both must be within 2° for 25m operation or 5° for 20m operation. • Check that the Receiver lens is clean 5. Check Receiver for Interference Signals Turn the Beacon Transmitter power off and check that the Receiver LED does not glow dimly under any of the following circumstances.
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18 Notes
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MoTeC Notes 19