Yolin YL81F-H User Manual
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Yolin YL81F-H User Manual

Yolin YL81F-H User Manual

Electric bike display
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Electric Bike Display
User's Manual
YL81F-H
Tianjin Yolin Technology Co. Ltd.

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August 5, 2025

what are the replacement brake pad for model YL81F

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Summary of Contents for Yolin YL81F-H

  • Page 1 Electric Bike Display User’s Manual YL81F-H Tianjin Yolin Technology Co. Ltd.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. Product name and model ................................1 2. Specifications ................................... 1 3. Appearance and dimensions ..............................1 4. Function overview and Functional areas ..........................3 4.1 Functional overview ...............................3 4.2 Functional areas ................................3 4.3 Button definitions ................................3 5. Routine operation ..................................3 5.1 Power on/off ...................................
  • Page 3 Schedule 1: Error Code Definition .............................16...

  • Page 4: Product Name And Model

    1. Product name and model Intelligent LCD display for e-bike; model: YL81F-H. 2. Specifications ● 48V power supply ● Rated working current 15mA ● Maximum working current 30mA ● Leakage current at power-off <1uA ● Working current at the supply controller end 50mA ●...
  • Page 5 Figure 3-2 Physical picture of the K6 control button Figure 3-3 YL81F-H Front View Dimension Figure 3-4 YL81F-H Side View Dimension...

  • Page 6: Function Overview And Functional Areas

    Trip Odometer Max speed Average speed Figure 4-1 YL81F-H functional area distribution interface 4.3 Button definitions The YL81F-H display is equipped with five buttons on the corresponding operating unit: power on/off , plus minus , light and toggle 5. Routine operation 5.1 Power on/off...

  • Page 7: Display Interface Switching

    5.2 Display interface switching When the display is powered on, it will show the Current Speed (mile/h) and Trip Odometer (mile) by default. Short press to switched cyclically between Trip Odometer (mile), Odometer (mile), Maximum Speed (mile/h), Average Speed (mile/h), Voltage(V), and Current (A). Trip odometer Odometer Current...

  • Page 8: Walk Boost Mode

    5.3 Walk boost mode Long press and hold , the electric bicycle enters the walk boost mode. The electric bicycles will travel at walking speed and the display shows . Release the button to stop the power output immediately and restore to the state before walk boost.

  • Page 9: Pas Level Selection

    5.5 PAS level selection Press to switch PAS level of electric bicycle, thus changing the motor output power. (The following pictures are only for illustration of different speeds in different gears. The specific speed is subject to the actual product) Figure 5-4 PAS level display interface 5.6 Battery level display The Battery level is shown as 5 bars.

  • Page 10: Personalized Parameter Settings

    6. Personalized parameter settings Each setting needs to be done with the bicycle stationary. The personalized parameter setting procedure is as follows: When the display is ON and the speed shows 0, (1) Press and hold simultaneously for more than 2 seconds to enter the personalized parameter setting interface.

  • Page 11: Metric And Imperial Setting

    6.2 Metric and Imperial setting 02P is the metric and imperial setting option, 00 for metric and 01 for imperial. Press to enter the parameter changing state. Press the to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface. Figure 6-2 Metric and Imperial setting interface 6.3 Rated voltage setting 03P is the rated voltage setting option.

  • Page 12: Pas Level Setting

    6.5 PAS level setting 05P is the PAS level setting option. (Can only be viewed but not adjusted) Press to enter the parameter viewing state. Press to return to the personalized parameter setting interface. Figure 6-5 PAS level setting interface 6.6 Wheel diameter setting 06P is the wheel diameter setting option.

  • Page 13: Speed Limit Setting

    6.8 Speed limit setting 08P is the speed limit setting. The adjustable speed limit range is: 20mile/h,62mile/h (32km/h,100km/h). (The maximum adjustable speed limit varies by different protocols). Press to enter the parameter changing state. Press the to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

  • Page 14: Pedal Assist Sensitivity Setting

    6.11 Pedal assist sensitivity setting 11P is the Pedal assist sensitivity setting option.When set to higher number, it will take more crank rotations to activate the motor. On lower numbers, it will take little crank rotation to activate the motor. The adjustable range is :1~24. Press to enter the parameter changing state.

  • Page 15: Controller Current Limit Setting

    6.14 Controller current limit setting 14P is the controller current limit setting. (Can only be viewed but not adjusted) Press to enter the parameter viewing state. Press to return to the personalized parameter setting interface. Figure 6-14 Controller current limit setting interface 6.15 Battery under voltage value setting 15P is the battery under voltage setting option.

  • Page 16: Controller Automatic Cruise Setting

    6.17 Controller automatic cruise setting 17P is the controller automatic cruise setting option. 00 means disable cruise, 01 means enable cruise. Press to enter the parameter changing state. Press the to select the parameter and press to save the parameter setting and return to the personalized parameter setting interface. Figure 6-17 Controller automatic cruise setting interface 6.18 6km/h walk boost setting 18P is the 6km/h walk boost setting.

  • Page 17: Shortcut Operation

    7. Shortcut operation 7.1 Restore factory default parameter settings operation dEF is the restore factory default parameter settings. dEF-Y is the restore the factory default settings, and dEF-N is not to restore. Enter into the main setting interface and keep the speed at 0, press and hold simultaneously for 2s to enter the restore factory default setting interface.

  • Page 18: Quality Assurance And Warranty

    8. Quality Assurance and Warranty 8.1 Warranty info ● Yolin will offer a limited warranty for any failure caused by the product defects under normal use during the warranty period. ● The product is warranted for 12 months from the date out of factory.
  • Page 19 Schedule 1: Error Code Definition YL-02 Error codes Error code Definition Error code Definition E001 Controller failure E004 Throttle failure E002 Communication failure E005 Brake failure breakdown E003 Hall failure E006 Motor phase failure Tel: 022-86838795 Fax: 022-86838795 Email: store@yolintech.com Website: www.yolintech.com Address: Plant 52-1, Yougu Xinke Park, East of Jingfu Road, Pharmaceuticals and Medical Equipment Industrial Park, Beichen Economic Development Zone, Beichen District, Tianjin...

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