Wuxi LingDe Microelectronics Co., Ltd. LD903GUB, Instruction Manual

Page 1: ...ction Manual V1 0 2017 11 20 The instrument LD903GUBis simple and beautiful with the unique design of scientific ergonomic curve The LED is not only clearly visible in the sunlight but also displayed with soft light under the night mode that makes riding safety ...

Page 2: ...Wuxi LingDe Microelectronics Co Ltd 1 Please read the manual of LD903GUB carefully before taking a ride for a better performance Size Instruction to display interface ...

Page 3: ...screw manually 3 Please insert the connectors of instrument and the connector of controller on the occasion of power off Definition of button There are 4 buttons on the instrument including the power mode M up down and headlight switch B Routine operation turn on off ON press the button of M for a long while on the occasion of power off and enter the password if any then the instrument starts work...

Page 4: ... your phone 1st gear 9th gear Power Assisted Walk After holding the button of DOWN for 2 seconds electric bicycle will come into the mode of power assist walk keeping an even speed at 6 kilometers per hour The gear position displays the speed per hour Release the button to stop the mode immediately Notes The function works out at the situation of pushing electric bicycles Do not use it when riding...

Page 5: ... light on Capacity display When voltage is high 5 battery segments will be alight when only 1battery segment is alight it means low power and needs to be charged Error code display When something is wrong with the electric control system the ERR light will be alight and speed position will show the error code with the details in APP Only when the fault is excluded can it exit the interface If the ...

Page 6: ...or a long while in any setting menu Besides you can exit the setting menu automatically by pressing M for a short while and switching all the setting items SET1 unit setting When entering the setting menu the default setting is SET1 You can switch the mile and kilometer by pressing with the switching of speed and trip at the same time and corresponding indicator light on You can quit the interface...

Page 7: ...e password of 1 9 10 99 100 999 1000 9999 The corresponding number will flicker when you press to set The effective password ranges from 0001 to 9999 Just forget the password There is no password when the instrument is out factory If the user has set password or forgot the password please log in the APP and connects the instrument to unlock automatically And then come into the menu to set the pass...

Page 8: ...shui Electronics Research Institute Co Ltd The user can install the corresponding Fore Rider application according to the style of mobile phone and the area of users The apple IOS system is divided into 2 versions including European one and other regional ones Android version The European version The other regional version Android version 3 UI interfaces of APP to select crystal LED interface IOS ...

Page 9: ... The pink interface LD903GUB goes with bluetooth and the name and password of APP Fore Rider When clicking the corresponding bluetooth equipment in the interface of searching bluetooth in the APP Fore Rider you will enter the page of password as the picture below ...

Page 10: ... display of APP Fore Rider with power off LED interface Metal pointer interface If connected successfully you will come into the Metal pointer interface just like the picture below If not pressing the power button on the top right corner all the controller cannot be clicked APP Setting Interface After the first connection is successful a configuration file must be imported The method is as follows...

Page 11: ... digital gear of LD903GUB will go accordingly If holding the button of pushing for 6km for over 2seconds you will enter the mode of pushing for 6km with the yellow man glittering and the e bike will come into the situation of 6km h You can exit 6km if loosening the button When the users touch the headlight button the headlight icon will turn red and the headlight is on If touched again the icon wi...

Page 12: ...rogram updating Click on the corresponding cell and enter the corresponding Settings interface Brightness Interface They are in sequence Screen brightness cell phone brightness adjustment Style A choice of display interface style choose the metal pointer interface then the back home page is the metal pointer interface If enter the settings interface through the metal pointer page brightness and th...

Page 13: ... to be selected by pressing the corresponding icon or word Clear Single Mileage When you click the clear single mileage the user will get two options Reset the Trip A or Trip B Trip A or Trip B means the distance from place A to place B only Single mileage in two different locations and different time periods You can set the number to zero when you set off from place A and the number shown until y...

Page 14: ...e current maximum speed limit is 25Km h and the default speed limit is 25 Km h If you have set the unit Mile here shows the mile but the data can be converted to km You can slide the speed box to select a reasonable speed limit The default speed magnet number is 1 The user can select it according to the actual situation by the drop down box Current and Voltage Settings Click the current and voltag...

Page 15: ...e current of the battery its default is 12A the user can select the maximum discharge current of the battery according to the actual demand slide left or right to reduce or increase the current limit The default of acceleration is 100 the user can choose the acceleration value according to actual demand slide left or right to reduce or increase the acceleration value Bafang protocol does not suppo...

Page 16: ...100 PAS setting interface Bafang protocol does not support PAS magnet per circle means pluses per circle the default is 12 Forward pulse duty cycle choose 50 the wheel will get the assisted power when it inverts choose 50 the wheel will get the assisted power when it forwards Slide the Forward pulse duty cycle button to choose The default of start after magnet number is 2 the user can set it accor...

Page 17: ...speed will be limited less than 6 km h Open the throttle level select function the corresponding speed and power will change accordingly when adjusting the level in metal pointer or crystal LED page On the contrary it won t change E bike Malfunction Diagnosis By testing the brake controller and other components to ensure that the problem can be detected in advance and not affect the normal use of ...

Page 18: ...verage 1 When the malfunction is caused by the quality of the product itself under regular use condition our company will be responsible for it under guarantee 2 24 months from the delivery time of the display out of the factory 二 The following conditions are not covered by the warranty 1 The shell is open 2 The connectors are broken 3 The shell is scratched or damaged after out of factory 4 The l...

Page 19: ...initions are as below number colour function 1 red VCC Power B 2 black GND Power B 3 yellow TX Gorge line sending message 4 green RX Gorge line receiving message 5 blue K Electric door look offer weak power to other equipment Note Users cannot see the color of the internal wiring because of the water proof connector ...