Key-Disp KD51C-D User Manual
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Key-Disp KD51C-D User Manual

E-bike display
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  • Page 2: Specifications

    Product model ntelligent LCD display of E-bike; model: KD51C-D Specifications 24V/36V/48V Power Supply ● Rated working current :10mA ● ● The maximum working current: 30mA Off leakage current: <1uA ● The supply controller working current 50mA ● ● Operating temperature: -20℃~ 60℃...
  • Page 3 Remote appearance and dimension drawing (unit: mm) Function Summary KD51C-D can provide a lot of functions to fit the Users needs. The indicating contents are as below: percentage Battery and battery indication ● Motor Power indication ● ● Assistance-level indication Speed indication (incl.
  • Page 4 Recover Default Settings ● General Operation ◆Switching the E-bike System On/Off Briefly press the power button to switch on the E-bike system, and provides the power supply for the controller .To hold the power button for 2s, the E-bike system will be switched off .The E-bike system no longer use the battery power.
  • Page 5 Push-assistance Mode ■ Push-assistance function may only be used when pushing the E-bike. Danger of injury when the wheels of the E-bike do not have ground contact while use the push-assistance function. ◆Switching the Lighting On/Off To switch on the headlight, hold the “ ”...
  • Page 6 Assistance Level Conversion Interface ◆Battery Indicator The five battery bars represent the capacity of the battery.The five battery bars bright when the battery is in high voltage. When the battery is in low voltage, battery frame will flash at the frequency of 1HZ to notice that the battery needs to be recharged immediately. 电...

  • Page 7: General Settings

    USB Connection Indication Interface ◆Error Code Indication The components of the E-bike system are continuously and automatically monitored. When an error is detected, the respective error code is indicated in text indication area. Here is the detail message of the error code in Attached list 1. Error Code Indication ■Make the display repaired when error code appears.
  • Page 8 General parameter setting item selection interface ▉All the Settings are operated in the case of parking the E-bike. ◆Trip Distance Clearance Clear Trip represents trip distance clearance setting. To clear trip distance, press the “+” button or the “-” button to select the Yes or No. Yes represents clearing a single ride distance.
  • Page 9 Mile and Kilometer Conversion Settings Interface ◆Wheel Diameter Settings Wheel Diameter represents wheel diameter settings. To change basic settings, press the “+” or the “-” button to increase or decrease until the desired value is displayed. The default value is 26 inch. To store a changed setting, press the “i” button to confirm, display "OK"...
  • Page 10 ◆Speed-limit Settings The default value is 25Km/h. Speed Limit represents the limit speed settings. When the current speed is faster than speed limit, the E-bike system will switch off automatically. Speed limit range is 12Km/h to 40Km/h. To change basic settings, press the “+” or the “-” button to increase or decrease until the desired value is displayed.
  • Page 11 Battery Settings Indicator Interface ◆Assistance Level Settings Assistance Level Option Set Power represents assistance-level settings. In assistance level settings, there are 8 modes to select：0-3, 1-3, 0-5, 1-5, 0-7, 1-7, 0-9, 1-9. The default value is 0-5. To change the mode of assistance-level, press the “+” or the “-” button to choose the desired mode, and then press the “i”...
  • Page 12 PAS Ratio Settings To modify the value of PAS ratio, press the "+" button or "-" button to choose the desired value, and then press the "i" button to confirm For example, the range is “50 percent” of “1” level, bottom value can be modified, and the default value is 50 percent.
  • Page 13 Current Settings Interface ◆Power Assistant Sensor Settings Assistant num represents the sensitivity of PAS settings. The sensitivity value is “5” to “24”. To store a changed setting, press the “i” button and then access the general settings. To change the sensitivity of PAS settings, press the “+” or the “-” button to select sensitivity value.
  • Page 14 Speed Sensor represents speed sensor settings. The default value is 1 To change speed sensor settings, press the “+” or the “-” button to select the quantity of magnet head (the range is from 1 to 15). To store a changed setting, hold the “i” button and then return to previous menu. Speed Sensor Selection ◆Backlight Contrast Settings Set Backlight represents backlight contrast settings.
  • Page 15 To access the power-on password settings, press the“+”or the“-” button to modify the value and then press the “i” button to confirm digit one by one until the correct 4-digit password is completed, and then press the “i” button to access power-on password enable settings interface, otherwise stay on the password input state.
  • Page 16 settings. When switching the E-bike system on next time, the display will show P1,0000, please input the new password to power on. Change Password Interface ◆Exit Settings In the settings state, press the “i” button (short than 2s) is to confirm the input. Hold the “i”...
  • Page 17 Display-side Connector Display-side adapter Switch wiring Line sequence table Line Color Function Red（VCC） ﹢ Blue（K） Lock Green（RX） ﹣ Yellow（TX） Green（RX） ■Some wire use the water-proof connector, users can not see the inside color. Operation Cautions Be careful of safe use. Don’t attempt to release the connector when battery is on power.

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