Yolin YL81F Manuel utilisateur
Tianjin Yolin Technology Co. Ltd.
Electric Bike Display
User’s Manual
YL81F
TABLE OF CONTENTS
1. Product Name and Model Number ............................................................................................................................................... 1
2. Specification .................................................................................................................................................................................... 1
3. Appearance and Size .......................................................................................................................................................................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 .......................................................................................................................................................................... 4
5.1 Power on/off .............................................................................................................................................................................. 4
5.2 Display interface switching ...................................................................................................................................................... 4
5.3 Walk boost mode .......................................................................................................................................................................5
5.4 Turning on/off lights ................................................................................................................................................................. 5
5.5 PAS level selection .................................................................................................................................................................... 6
5.6 Battery level display ................................................................................................................................................................. 6
5.7 Error code display .................................................................................................................................................................... 7
6. Personalized Parameter Settings ...................................................................................................................................................7
6.1 Metric and Imperial setting ..................................................................................................................................................... 8
6.2 Rated voltage setting ................................................................................................................................................................ 8
6.3 PAS level setting ........................................................................................................................................................................9
6.4 Wheel diameter setting ...........................................................................................................................................................10
6.5 Number of speed sensor magnets setting ..............................................................................................................................10
6.6 Speed Limit Setting .................................................................................................................................................................11
6.7 Controller Current Limit Setting .......................................................................................................................................... 11
6.8 PAS sensor setting ...................................................................................................................................................................12
6.9 Throttle setting ........................................................................................................................................................................13
6.10 Power-on password setting .................................................................................................................................................. 14
6.11 Auto Sleep Time Setting ....................................................................................................................................................... 15
7. Shortcut Operation ....................................................................................................................................................................... 16
8. Quality Assurance and Warranty ................................................................................................................................................17
8.1 Warranty info ..........................................................................................................................................................................17
8.2 Warranty does not cover ........................................................................................................................................................ 17
9. Wire Connection Diagram ........................................................................................................................................................... 17
10. Precautions .................................................................................................................................................................................. 17
Schedule 1: Error Code Definition ..................................................................................................................................................18
Schedule 2: Pedal Assist Level Default Ratio Value ...................................................................................................................... 18
1
1. Product Name and Model Number
Smart LCD display for electric bicycle; Model: YL81F.
2. Specification
● 24V/36V/48V power supply
● Display rated current 15mA
● Display maximum current 30mA
● Shutdown leakage current <1uA
●Supplied current to the controller 50mA
● Operating temperature -20～60℃
● Storage temperature -30 to 70°C
3. Appearance and Size
Figure 3-1 Physical picture of the YL81F display
2
Figure 3-2 Physical picture of the K5 control button Figure 3-3 Physical picture of the K6 control button
Figure 3-4 90T-V Front View Dimension Figure 3-5 90T-V Side View Dimension
3
4. Function Overview and Functional Areas
4.1 Functional overview
The YL81F display offers a variety of features to suit your riding needs, including:
●Battery level indicator
●Pedal assist (PAS) level indicator
●Speed (current speed, maximum speed, average speed)
●Mileage display (single and total mileage)
●Walk boost mode
●Light ON/OFF
●Error code indicator
●Motor power indicator (optional)
●USB connection indicator (optional)
●Cruise control indicator (optional)
●Bluetooth connection indicator (optional)
●Personalized parameter settings (e.g. wheel diameter, speed limit, rated voltage, PAS parameter, password, and
controller current limit setting, etc.).
●Factory default parameter recovery function
4.2 Functional areas
Figure 4-1 YL90T-V functional area distribution interface
4.3 Button definitions
The YL81F display is equipped with five buttons on the corresponding operating unit: power on/off , plus ,
minus , light and toggle .
Battery level
Error code
Current speed
PAS level
Value and unit
Walk boost
Light ON/OFF
Bluetooth
USB
Speed unit
KM/H
MPH
Trip odometer
Odometer
Max speed
Average speed
Cruise
4
Trip Odometer Odometer
Average Speed Maximum Speed
5. Routine Operation
5.1 Power on/off
Long press to power on/off the display. When the display is off, it will not use the battery power and the leakage
current is less than 1uA.
The display will automatically shut off if it is not used for more than 10 minutes.
5.2 Display interface switching
When the display is powered on, it will show the Current Speed (km/h) and Trip Odometer (km) by default. Short
press to switch between Trip Odometer(km), Odometer (km), Maximum Speed (km/h), and Average Speed (km/h).
Figure 5-1 Display Interface Switching
5
5.3 Walk boost mode
Long Press and hold , the electric bicycle enters the walk boost mode. The electric bicycle will walk at a fixed
speed of 6 km/h and the display shows . Release to stop the power output immediately and restore to the state
before walk boost.
Figure 5-2 Helping to implement the display screen
The walk boost mode can only be used when pushing the electric bicycle, please do not use it while riding.
5.4 Turning on/off lights
Press the to make the controller turn on the lights and the display backlight becomes dim. Press again to make
the controller turn off the lights and the backlight restore brightness.
Figure 5-3 Backlight display interface
6
5.5 PAS level selection
Press / to switch PAS level of electric bicycle, thus changing the motor output power.
Figure 5-4 PAS level display interface
5.6 Battery level display
The Battery level is shown as 5 bars. When the battery is full charged, all of the 5 bars lighten up. When the battery is
fully depleted, the bar will begin to flash, warning the user to charge the battery as soon as possible.
Full power Four bars power Three bars power Two bars power One bar power
Figure 5-5 Battery Level Display Interface
Empty power flashing
7
5.7 Error code display
If there is a fault occurs in the electronic system of the electric bicycle, the display will automatically show an error
code, see Schedule 1 for a detailed definition of the error code.
Figure 5-6 Error Code Display
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.
(2) Press / to toggle between the personalized parameter setting interface, and press to enter the
parameter changing state.
(3) Press / to select the parameter, long pres for addition operation, long press for subtraction
operation.
(4) Press to save the parameter settings and return to the personalized parameter setting interface.
(5) Long Press to save the parameter settings and exit the personalized parameter setting interface.
The following options are available on the personalized parameter setting interface:
When the error code appears on the display,
please troubleshoot the problem in time, the
electric bicycle will not be able to drive
normally after the problem occurs.
8
6.1 Metric and Imperial setting
01P is the metric and imperial setting, 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 6-1 Metric and Imperial Units Setting Interface
6.2 Rated voltage setting
02P is the rated voltage setting. The available rated voltage range is: 24V, 36V, 48V.
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 Rated voltage setting interface
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