Yolin YL80C User manual

The eBike Display
User's Manual
YL80C

Content
Product Name and Model.................................................................................................................................................................. 1
Specification Parameters....................................................................................................................................................................1
Appearance Dimensions..................................................................................................................................................................... 1
◆Physical Drawing and Dimensional Drawing (unit:MM)........................................................................................................................................1
Functional Overview and Functional Area Distribution................................................................................................................ 3
◆Function Overview..................................................................................................................................................................... 3
◆Functional Area Distribution.................................................................................................................................................... 3
◆Button Definition........................................................................................................................................................................ 4
General Operations............................................................................................................................................................................ 4
◆Power On/Off.............................................................................................................................................................................4
◆Display Interface........................................................................................................................................................................ 4
◆Assist in Implementation........................................................................................................................................................... 4
◆Turn the Backlight On/Off......................................................................................................................................................5
◆Boost Gear Selection.................................................................................................................................................................. 5
◆Electricity Display...................................................................................................................................................................... 6
◆Motor Power Indication.............................................................................................................................................................6
◆Error Code Display.................................................................................................................................................................... 6
General Settings.................................................................................................................................................................................. 6
◆Single Mileage Clear.................................................................................................................................................................. 6
◆Backlight Brightness.................................................................................................................................................................. 7
◆Conversion of Imperial and Metric Units................................................................................................................................ 7
General Parameter Settings...............................................................................................................................................................8
◆Wheel Diameter Setting............................................................................................................................................................. 8
◆Speed Limit Setting.................................................................................................................................................................... 8
Personalization....................................................................................................................................................................................8
◆Battery Charge Setting.............................................................................................................................................................. 9
◆Assist Parameter Setting (Option)............................................................................................................................................ 9
Boost Gear Selection.................................................................................................................................................................. 9
Assist Proportion Value Setting.............................................................................................................................................. 10
◆Current Limit Value Setting (Option)....................................................................................................................................10
◆Boost Sensor Settings (Option)................................................................................................................................................11
Direction Setting of Assist Sensor........................................................................................................................................... 11
Assist Sensor Sensitivity Setting..............................................................................................................................................11
Setting of Magnetic Steel Number of Helper Disk................................................................................................................ 11
◆Speed Sensor Settings (Option)............................................................................................................................................... 12
◆Turn Band Function Settings (Options).................................................................................................................................12
Turn Handle Assisted Push Enable Setting........................................................................................................................... 12
Rotary Handle Gear Enable Setting.......................................................................................................................................12
◆System Settings (Options)........................................................................................................................................................13
Electricity Delay Time Setting................................................................................................................................................ 13

Key Assisted Push Enable Settings......................................................................................................................................... 13
Slow Start Settings................................................................................................................................................................... 14
◆Boot Password Settings............................................................................................................................................................ 14
Boot Password Enable............................................................................................................................................................. 14
Switch-on Password Modification.......................................................................................................................................... 15
◆Exit Settings.............................................................................................................................................................................. 15
Restore Default Settings................................................................................................................................................................... 15
Quality Commitment and Warranty Scope................................................................................................................................... 16
Lead Connection Diagram............................................................................................................................................................... 16
Precautions........................................................................................................................................................................................ 17
Schedule1 : Error Code Definition Table.......................................................................................................................................17
Schedule2 : Boost Gear Proportion Default Value Table............................................................................................................. 17

1
Product Name and Model
Intelligent Liquid Crystal Instrument for Electric Bicycle; Model: YL80C.
Specification Parameters
●24V/36V/48V power supply
●Rated working current of instrument 10mA
●The maximum working current of the instrument is 30mA
●Shutdown leakage current < 1uA
●The operating current supplied to the controller is 50mA
●Working temperature-20 ~ 60 ℃
●Storage temperature-30 ~ 70 ℃
Appearance Dimensions
◆Physical Drawing and Dimensional Drawing (unit: mm)

2
Physical Drawing and Dimensional Drawing

3
Functional Overview and Functional Area Distribution
◆Function Overview
YL80C meters provide a variety of functions to meet your riding needs, including:
●Electricity Display
●Motor power indication
●Boost gear adjustment and indication
●Speed display (including real-time speed, maximum speed and average speed)
●Mileage display (including single mileage and total mileage)
●Assist in implementing control and display
●Backlight control and display
●Error Code Display
●USB Connection Indication (Option)
●Heart Rate Display (Option)
●A number of parameter settings (e.g. Wheel diameter, speed limit, battery power setting and assistance parameter setting,
startup password setting, controller current limit setting, etc.)
●Default parameter recovery function
◆Functional Area Distribution
YL80C Functional Area Distribution Interface

4
◆Button Definition
There are five keys on the corresponding operation unit of YL80C instrument, of which the keys
are replaced by the words "UP" and "DOWN" respectively in the following instructions.
General Operations
◆Power On/Off
After pressing the key for a long time, the instrument starts to work and turns on the working power supply of the
controller. In the startup state, the electric vehicle can be turned off by pressing the key for a short time. Source,in the
shutdown state, the instrument no longer uses the battery power supply, and the leakage current of the instrument is
less than 1uA.
■If the electric vehicle is not used for more than 10 minutes, the instrument will automatically shut down.
◆Display Interface
After the instrument is turned on, the instrument displays the real-time speed and total mileage (km) by default. Press the
"i" key briefly to display information switching between real-time speed (km/h), single mileage (km), total mileage (km),
maximum speed (km/h), average speed (km/h) and riding power.
Display Interface Switch
◆Assist in Implementation
Press the DOWN button for a long time, and the electric vehicle enters the electric assistance pushing state. Electric vehicles
run at a constant speed of 6 km/h. At the same time, the screen shows .
Release the DOWN button and the electric vehicle will immediately stop power output and return to the state before
the push.

5
Helping to Promote Display Interface
◆The boosting function can only be used when the user pushes the electric vehicle, and should not be used in the
riding state.
◆Turn the Backlight On/Off
Press the headlight key briefly to dim the backlight of the instrument and notify the controller to turn on the headlight
at the same time. When the external light is insufficient or driving at night, the headlights of the whole vehicle can be turned
on. Press the headlight key again, the instrument backlight turns on and the controller is notified to turn off the headlight.
Open the Backlight Display Interface
◆Boost Gear Selection
Press the UP/DOWN button briefly to switch the assist gear of the electric vehicle, thus changing the output power of
the motor. The default output power range of the instrument is 0-3 gears, 0 gears are 0 power output, 1 gears are the lowest
power, and 3 gears are the highest power. When the 3rd gear is reached, press the UP button briefly again, and the interface
will still display 3. The number 3 will remain unchanged, which is the highest grade. After the power downshift reaches
gear 0, press the DOWN button briefly again, and the interface still displays 0. The number 0 remains unchanged, which is
the lowest gear. The default gear for instrument startup is 1st gear.
Gear Switching Display Interface

6
◆Electricity Display
The five-segment display of battery power shows that when the battery voltage is high, the five-segment LCD is on,
and when the battery is under-voltage, the outer frame of the battery flashes at a frequency of 1HZ, indicating the need to
charge immediately.
Battery undervoltage flicker
Battery Charge Display Interface
◆Motor Power Indication
The output power of the motor can be known through the instrument. The display mode is shown in the following
figure.
Motor Power Display Interface
◆Error Code Display
When the electric control system of the electric vehicle fails, the instrument will automatically display the error code.
See Table 1 for the definition of the detailed error code.
Error Code Display Interface
■When there is an error code in the display interface, please troubleshoot the fault in time. After the fault occurs,
the electric vehicle will not run normally.
General Settings
Press the key for a long time to start the machine. In the startup state, when the vehicle is stationary, press and
hold the UP + DOWN key for more than 2 seconds at the same time, and the instrument enters the normal setting state.
■Each setting item needs to be made with the vehicle stationary.
◆Single Mileage Clear

7
TC stands for clearing the single mileage. Y/N can be selected through the UP/DOWN key, and “Y” means clearing
the mileage of a single ride. “N” means a single ride that is not cleared
Line mileage. Press the "i" key briefly to confirm and enter the backlight brightness setting state.
Single Mileage Clearing Operation Interface
◆Backlight Brightness
BL stands for backlight. Parameters 1, 2, 3 can be set to indicate backlight brightness, 1 is the darkest, 2 is the standard
brightness, and 3 is the brightest. The default value of the instrument factory is 1. The backlight brightness parameter can be
changed through the UP/DOWN key. Press the "i" key for a short time to confirm and enter the metric-imperial unit
conversion setting state, and press the "i" key for a long time to confirm and exit the normal setting state.
Backlight Brightness Setting Interface
◆Conversion of Imperial and Metric Units
U for units, 1 for imperial system and 2 for metric system. Speed and mileage units can be converted through
UP/DOWN key, short press "i" key to confirm, long press "i" key to confirm and exit the normal setting state. The default
unit of the instrument is metric.
Imperial and Metric Unit Conversion Settings Interface