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1. Drenth motorsport gearboxes Drenth Display Unit Advanced User Manual 25 03 0023 n gearboxes Introduction The display unit comes with a software application With the software application information shown on the display can be adjusted There are different modes to adjust the shape of the RPM indication and the duration of the engine cut can be controlled power shift Beside this the gear indicator also gives information about which gear is selected The settings of the DMS gearlever can also be calibrated with the display unit This document contains information about the Drenth display unit The user manual includes function descriptions wiring diagrams and instructions to use the software that is included Drenth Motorsport Gearboxes Fleuweweg 10 7468 AG Enter The Netherlands Phone 31 0 547 38 26 96 Fax 31 0 547 38 20 65 Last modified December 2012 info drenth gearboxes com Made by Arjan Hoogendijk www drenth gearboxes com Ve Manual Display 2 motorsport gearboxes Function description The Advanced Display unit which Drenth can supply has the following options Gearindication The gear indicator displays the selected gear by measuring the position of the selector barrel with a rotary sensor This function can be calibrated through the supplied software Shiftlight The gear indicator can be used as a shiftlight when a preset level of RPM is reached This preset level and the manner of indicat
2. purple i 12v Manual Display 8 motorsport gearboxes Software functions 1 Load settings from file Opens a dialog box where you can open a saved settings file 2 Save settings to file Opens a dialog box to save the settings that are currently set up in the software 3 Transmit settings to display Sends the settings that are currently on your screen to the display unit 4 Receive settings from display Reads the settings that are in the display unit It s important to do this first The software will always start with the default setting for example if you only change the shift light and then select transmit settings to display the setting of the default file with the changed shift light values will be sent to your display 5 RPM Pickup ignition coil type In this box you can set what type of coil is used It is important to fill it in correctly it is not only used for the shift light but also for the power shift The power shift only works above 3000 rpm this will allow engagement of first gear without stopping the engine RPM pickup 4 cilinder standard coil 6 Switch type With the box switch type you can select the type of switch that is used to generate engine cut Normaly closed Normaly closed means if the switch on the gearbox is actuated the circuit will be interrupted Normaly open Normaly open is standard in a Drenth gearbox this means if the switch on the gearbox is actuated the circuit
3. front of the display Brightness e Automatic Bright Dark 15 Number of gear positions With the on off setting you can set how many gear positions are used it is important to set this correctly The function Automatic Cal uses these values to see how many gear positions there are and if not set correctly Automatic Cal it will not function With display text you can set in which order and how many gears there are Display Brightness Automatic Default io Bright Dark Automatic Cat on off Display text Gum N 1 2 3e 4e gt m 6 Je 8 Manual Display motorsport gearboxes Setting up for powershifting This is a brief description about adjusting the power shift system If you make use of the switch you need to adjust it first Then you can setup the cut time via the supplied software Depending on the type of gearbox delivered from Drenth there is an external switch mounted on the gearbox or Drenth can supply a strain gauge gearlever This switch or gearlever detects an up shift When an up shift is detected the controller cuts of the ignition by the programmed amount of time External Switch The external switch comes preset from the factory For the switch please check if it is set correctly Use a multimeter to determine if the switch is closed When you are up shifting the switch should close when all the play in the selection system is pushed out You will feel an
4. will be closed Manual Display 9 motorsport gearboxes Loadcell The Loadcell is located in the gearlever If you select the loadcell as switch type you can customize it to your own specifications In the Neutral position box you can set the neutral position of de lever To fill this in you need to click the button Get act Position this value must be specified in the box Neutral position see picture below This value will always be around 2500 mV In the Upshift threshold box you can adjust the force that is required to shift up Preset from the factory the value is 3000 mV the threshold can be adjusted by increasing or decreasing the amount of mV to the wishes of the driver Please note that if the switch is set with very close to little threshold on the lever it is possible that the gearlever reacts to vibrations in the car Holding the gearlever which is not recommended to do can give you random engine cuts In the Downshift threshold box you can adjust the threshold that is required to shift down Preset from the factory the value is 2200 mV but the threshold can also be adjusted by increasing or decreasing the amount of mV to the wishes of the driver Hysteresis With the box Hysteresis you can decide how long the signal for the powershift is active The value that has been filled in wil be subtracted from the value that is given by the box Upshift threshold Between this value and the value from the box Upshift value
5. Shiftlight off deo 8250 Z KIM gt 9 Output 2 In this box the function of the purple wire can be set The different possibilities are Reverselight The purple wire can be used for the reverse light Blip If this is selected the purple wire can be used for switching the throttle blip No function high The purple wire has no function Output 2 Invert output manne Manual Display 13 motorsport gearboxes 10 Default If this button is used the software will load the file default drg and delete the settings that are on your screen 11 Automatic Cal With this button the rotary sensor that is mounted in the gearbox can be calibrated After pressing the button Automatic Cal a dialog box will open and you will be asked to put it in reverse gear at the same time the display will show a p When the gear is selected click on the ok button Repeat until the last gear is done When you rebuild the gearbox it is recommended to check this first because the position of the rotary sensor is difficult to change when the gearbox is mounted in the car Information Switch to the R gear JI and press then the Enter key or Ok Button Manual Display 14 motorsport gearboxes 12 Rotary sensor First make sure that the rotary sensor is mounted in the right position on the ridge of the potentiometer there s a small notch Make sure the ridge is standing vertical with the notch facing downwards and the cable nee
6. ds to go up Before mounting make sure the gearbox is in reverse For a detailed graphic see figure below KCR Notch facing downwards AN Polarity from potentiometer reversed III default values will be loaded When this message appears there are two things you need to check When the voltage is not correct with the rotation direction you need to check the colour of the signal wire see page 4 and 5 If the voltage starts at 2 5 Volts instead of starting at 0 Volts you need to turn the rotary sensor 180 degrees Manual Display 15 motorsport gearboxes 13 Manual Calibration With this function you can do the manual calibration Version 3 0 motorsport gearboxes R N 1 2 3 4 5 6 ia 0 000 0 500 gt 1 000 gt 1 500 gt 2 000 2 500 gt 3 000 gt 3 500 gt MOOD gt 4 500 gt Volt The values must increase otherwise the display will show an incorrect value If the rotary sensor gives a voltage that is between two gear positions the display will show x to show you the gearbox is not properly engaged You can measure the voltage from the rotary sensor on signal wire to determine right value Red 5V Signal Controlunit Black Ground Manual Display 16 motorsport gearboxes 14 Display brightness With this function you can set the brightness of the display The automatic selection only works on displays with a day light sensor which is located on the
7. e directly connected to engine ground do not place a switch in this wire Disconnecting ground when the display is on can lead to permanent damage 2 For the RPM pickup the gear indicator comes with 2 wires You can use either one not both depending on car electronics and wire loom We advise to start with the green wire as this can handle 1700 volts maximum Connect the green wire to the negative side of the ignition coil Otherwise use the pink wire to connect to the coil driver s of the ignition system Note that it can only handle 15 volts maximum If this wire is overloaded the display unit is damaged 3 The wires to connect the power shift are the yellow black signal and white black ground They must be connected to the switch that is mounted in the gearbox It is actuated when the gearbox shifts up the type of switch NO Normally Open or NC Normally Closed can be set in the software Make sure that the switch is isolated from the gearbox 4 Gear position wires are black grey ground yellow green 5 volts and grey blue for the signal These go to the rotary sensor as follows lack grey fellow green SVots Red l Depends on witch MPG Manual Display 4 motorsport gearboxes Wire Yellow CW Wire White CCW CN Voltage LN Voltage Voltage A Voltage 5 Relay wires are the orange switched ground and red 12 volt Connect these to the coil of the relay The switch of the relay is placed in
8. ector supply ignition coil The control wire form the ecu needs to be connected through Coil with the wire that goes to the relay so the wire does not get With a standard ecu With a non OEM ecu interrupted when the flatshift is used This needs to be done because if the coil gets interrupted the ecu can switch to emergency mode powerstage ae It is important that the relay is a fast switching Relay orange relay If a wrong relay is red 12V used it will result in a black md Ground delayed cut time Use the supplied relay White black Connector strain gauge gearlever Yellow black Powershift switch Rpm pickup pink Connect to low voltage signal of the ignition coil driver 12v purple ta gs Reverse light Connector rotary sensor ngines with a built in coil driver Manual Display 7 motorsport gearboxes Wiring Diagram for the use of a throttle blip with a solenoid The Drenth Display Unit can be used to control a throttle blip When a solenoid is used to open the throttle then the display must be connected as shown in figure 3 A fast switching relay is used to switch It is important that the relay is a fast the solenoid switching relay If a wrong relay is When the throttle is controlled by an digital drive by wire system the SEE ITE SUNG ME EL DEANE purple wire can be used as a signal pickup for a throttle blip blip Use the supplied relay Relay Throttle Blip
9. ence when selecting gears Some will feel like shifting with a clutch but the most will feel stiffer or more harsh After that there can be started with the fine tuning notice that how higher the gear ratio how higher the shift times has to be If you have achieved to find an optimum setting for the gears 2 till 5 then we recommend to use advanced settings Set the cut time for each gear independently at the recent found settings Then lengthen the time for the lower gears and shorten the time for the higher gears The cut time will vary between 120 45 ms If its too long or to short it won t shift with the same feeling as when using the clutch Note that a properly setup power shift system can reduce wear on the gearbox Also a not very accurate setting can cause damage Delay times The delay time is the time to wait for the cut time Please leave the delay time set to nil as this is only used on recommendation from Drenth A Manual Display 18 motorsport gearboxes Contact Information Address Drenth Motorsport Gearboxes Fleuweweg 10 7468 AG Enter The Netherlands Phone 31 0 547 38 26 96 Fax 31 0 547 38 20 65 www drenth gearboxes com info drenth gearboxes com Contact Persons Sales department Johan Drenth Johan drenth gearboxes com Engineering Jeroen Grolleman Jeroen drenth gearboxes com Manual Display 19 motorsport gearboxes saxogleaf uj saxoqieab 110dS10 0ur EDEN WOI soxo
10. increase of force needed to pull the lever This is when the switch should be closed You can adjust it via the shims supplied with the power shift switch Strain Gauge Gearlever The strain gauge gearlever comes preset from the factory The gearlever has an analogue output this output contains three wires yellow black and grey Yellow contains 5 Volts black contains ground and grey is the analogue readout When the gearlever is in neutral position it sends out 2 5 Volts By pulling the gearlever the voltage will increase and by pushing the gearlever the voltage will decrease For more detailed information on the strain gauge gearlever please see the manual for the strain gauge gearlever Test the RPM pickup Set the shift light to 2000 rom mode O If it starts at a different rpm the software may be set up incorrectly If it does not work there might not be a rpm signal pickup Please check all the connections and the pink green wire like mentioned on page 4 Cut times We recommend that you drive the car first with no power shift and use the clutch with up and downshifting When you pull the gear lever make sure that you make a full stroke pull convinced Then try to shift up without use of the clutch and lift your foot off the throttle Notice that the shifting with the gear lever should go just as easily as it would when using the clutch First try to flat shift using the default values cut time for each gear 100 ms You will feel a differ
11. ing can be set with the supplied software Flatshift The gear indicator can act as a flatshift system powershift This means that you can accelerate full throttle and shift up without using the clutch or lifting the throttle The gear indicator provides a signal that can be used to make a engine cut for powershifting It is possible to set different cut times in several gears with the supplied software Throttle blip or reverse light With the supplied software there is the possibility to use the reverse light or the throttle blip The throttle blip time can be adjusted for all the different gears separately in milliseconds the use of a throttle blip gives the possibility for a smoother downshift Set up DMS Gearlever The set up of the DMS Gearlever can be calibrated to your own specifications The force which is needed to shift up and shift down can be adjusted in the loadcell It s possible to use flat shifting for up shift and throttle blip or the clutch for downshift This manual describes the different options on how to use them Manual Display 3 motorsport gearboxes Connections 1 Power is supplied to the red 12 volt and black wire ground So it doesn t matter which red wire is connected to the relay or the 12V because they are internal connected The maximum voltage of the supply is 17 volt the minimum is 9 volt Make sure that the supply is free of interference do not connect to ignition coil or starter The ground must b
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13. rbox needs to be activated for a useful signal With the box Pause between shift you can set the time that you need to wait to shift for the next time This will avoid accidentally shifting down or up several times short after each other With the boxes Blip time you can set for several gears the time that the purple wire is switched to ground for example for throttle blip Manual Display 11 motorsport gearboxes EEK Version 3 0 motorsport gearboxes Min RPM for cut and blib time o Rpm Switch debounce time o gt ms Pause between shift 0 0 sec Shift down R N 1 Blip time B A o g Manual Display motorsport gearboxes 12 8 Shiftlight In this box the shift light rom and mode can be set With the slide bar in this box it is possible to see a demo of the different modes in the display box The 4 different modes available are Mode 0 On the set level the gear display will change to a completely filled flashing display Mode 1 On the set level the gear display will change to a completely filled display without flashing Mode 2 900 rpm before the set level the display is emptied and will then be filled bottom row first then upwards until the display is completely filled Mode 3 900 rpm before the set level the display is emptied and will then be filled bottom row first then upwards until the display is completely filled The display is flashing when its being filled upwards Shiftlight
14. the signal will be active This will avoid incorrect shifting Preset from the factory the value is 100 mV the value can be adjusted after your own specifications Loadcell Upshift threshold 3000 gt my Neutral position 2500 gt my Downshift threshold 2200 gt my A Hysteresis 100 m PeGetactpositions 2496 mv eee Manual Display 10 motorsport gearboxes 7 Advanced setting cut times With the box Cut time you can set the time that the relay is active The time that is needed depends on the type of engine and ratio s in the gearbox To reverse the signal that is going to the relay you can select the box Invert output You can determine whether the relay stays open or stays closed RPM cut on gear change Switch type Cut time Normaly closed oe Normaly open 100 ms Loadcell Only gt 3000RPM m Use Aava rootti advanced settings _ Invert output The delay time is the time to wait for the cut time Please leave the delay time set to nil as this is only used on recommendation of Drenth The cut time is the time that the ignition is paused To use the advanced settings first select Use advanced settings tick box and then select Advanced settings With the box Min RPM for cut and blib time you can set the minimum RPM that must be reached to provided an engine cut or throttle blip With the box Switch debounce time you can set the minimum time that the switch in the gea
15. the supply line to the ignition coil 6 If the reverse is engaged the purple wire is connected to ground Please note that the maximum load for the wire is 12 watt This signal can be used for a reverse light I Manual Display 5 motorsport gearboxes Wiring diagram for engines with a standard coil Supply fuel injector supply ignition coil Coil With a standard ecu It is important that the relay is a fast Relay switching relay If a wrong relay is used it will result in a delayed cut time Use the supplied relay Connector strain gauge gearlever Rpm pickup Connect to negative side ignition coil Connector rotary sensor With a non OEM ecu The control wire form the ecu needs to be connected through with the wire that goes to the relay so the wire does not get interrupted when the flatshift is used This needs to be done because if the coil gets interrupted the ecu can switch to emergency mode orange 12V red Ground White black Yellow black Powershift switch green 12v zak Ka Reverse light Tip to test the rpm pickup is correct set the shift light to 2000 rpm mode 0 If the shift light starts at a different rom level than the setting Rom Pickup in the software may be incorrect If it doesnt work then check the connections am engines standard coil motorsport gearboxes Manual Display 6 Wiring diagram for engines with a built in coil driver Supply fuel inj

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