BURCHDA YL81F-V Electric Bike Display User Manual

: August 26, 2024
: BURCHDA

Table of Contents

Product Name and Model Number
Specification
Appearance and Size
Routine Operation
Personalized Parameter Settings
Shortcut Operation
Quality Assurance and Warranty
Wire Connection Diagram
Precautions
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Electric Bike Display
User’s Manual
YL81F

Product Name and Model Number

Smart LCD display for electric bicycle; Model: YL81F.

Specification

24V/36V/48V power supply
Display rated current 15mA
Display maximum current 30mA
Shutdown leakage current <luA
Supplied current to the controller 50mA
Operating temperature -20~60°C
Storage temperature -30 to 70° C

Appearance and Size

Function Overview and Functional Areas

4.1 Functional overview
The YL8IF 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

4.3 Button definitions
The YLS8IF display is equipped with five buttons on the corresponding operating unit: power on/off plus , minus light and toggle .

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).

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.

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.

5.5 PAS level selection
Press / to switch PAS level of electric bicycle, thus changing the motor output power.

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.

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.
When the error code appears on the display, please troubleshoot the problem in time, the electric bicyde will mot be able to drive normally after the problem occurs.

Personalized Parameter Settings

AEach 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,

Press and hold simultaneously for more than 2 seconds to enter the personalized parameter setting interface.
Press / to toggle between the personalized parameter setting interface, and press to enter the parameter changing state.
Press / a to select the parameter, long pres for addition operation, long press for subtraction operation.
Press to save the parameter settings and return to the personalized parameter setting interface.
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:

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 / ato select the parameter and press to save the parameter setting and return to the personalized parameter 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.

6.3 PAS level setting
03P is the Pedal assist level setting. The available PAS level settings are: 0~3, 1~3, 0~5, 1~5, 1~7, 0~7, 0~9, 1~9.
Press to enter the parameter changing state. Press the / Bto select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

6.3.1 PAS level ratio value setting
To meet different requirements for users, the speed of every level can be adjusted by setting the PAS level ratio value.
Please see the details from Schedule 2.
For example, “45-55% is the ratio range of PAS 1. The default ratio value of PAS 1 is 50% which is adjustable.
Press the / ato select the parameter and press . to save the parameter and enter into the next level setting.
Press again to save the settings and return to the personalized parameter setting interface.

6.4 Wheel diameter setting
04P is the wheel diameter setting. The adjustable wheel diameter range is: 8~50inch.
Press to enter the parameter changing state. Press the Bto select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

6.5 Number of speed sensor magnets setting
O05P is the speed sensor magnet number setting. The adjustable speed sensor magnet number range is: 1 ~ 15 pcs (58 protocol) ,1 ~63pcs (KDS protocol) .
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.

6.6 Speed Limit Setting
06P is the speed limit setting. The adjustable speed limit range is: 1~60kmv/h or 1~41km/h. (The maximum adjustable speed limit varies by different protocols).
Press to enter the parameter changing state. Press the . Bto select the parameter and press to save the parameter setting and return to the personalized parameter setting interface.

6.7 Controller Current Limit Setting
07P is the controller current limit setting. The adjustable range is: 1~31.5A.
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.

6.8 PAS sensor setting
08P is the PAS sensor setting.
6.8.1 PAS sensor direction setting
un is the PAS sensor direction setting. run-F is front direction and run-b is opposite direction.
Press to enter the parameter changing state. Press the to select the parameter and press to save the parameter setting and enter into 6.8.2 PAS sensor sensitivity setting interface.

6.8.2 PAS sensor sensitivity setting
SCN is the PAS sensor sensitivity setting. The adjustable range is: 2-9. 2 is the highest level sensitivity while 9 is the
lowest.
Press the to select the parameter and press . to save the parameter setting and enter into 6.8.3 PAS magnets number setting interface.

6.8.3 Number of pedal assist sensor magnets setting
PAS is the pedal assist sensor magnets setting. The adjustable range is: 5-31.
Press the to select the parameter and press to save the parameter setting and to return to the personalized parameter setting interface.

6.9 Throttle setting
09P is the throttle setting.
6.9.1 Throttle 6KM/H walk boost setting
HL is the throttle 6KM/H walk boost setting. HL-Y is to enable the walk boost and the speed will maintain at 6KM/H when using throttle. HL-Y is to disable the walk boost and it can reach the max speed when using throttle.
Press the to select the HL-Y and press to save the parameter setting and return to the personalized parameter setting interface.
Press the to select the HL-N and press to save the parameter setting and enter into 6.9.2 Throttle Level setting interface or long press to return to the personalized parameter setting interface.

6.9.2 Throttle level setting
HF is the throttle Level setting. HF-Y is to enable the throttle level. When using the throttle, the max speed depends on the throttle level. (0~3, 1~3, 0~5, 1~5, 1~7, 0~7, 0~9, 1~9) HF-N is to disable the throttle level. The speed is independent with the throttle level and can reach the rated max speed.
Press the to select the parameter and press to save the parameter setting and to return to the personalized parameter setting interface.

6.10 Power-on password setting
10P is the power-on password setting. The power-on password is not activated by default but users can activate it from setting PSd-y. The factory default password is 1212. Users can set other four-digit password. Please keep the password in mind after changing it, otherwise you will not be able to use the display.
Press to enter the parameter changing state. Press the to select the parameter. PSd-y means the power-on password is activated while PSd-n is off. Press . to confirm the mode and enter the state of setting the four digits power-on password or exit to the personalized parameter setting interface.

Remember your password after changing it, or you will not be able to use the meter!

In the password setting mode, the adjustable digit will flash. Press the to select the parameter and press to save the numbers and go to the next digit setting. Long press to save the parameter setting and return to the personalized parameter setting interface after finish setting the four digits in turn.

6.11 Auto Sleep Time Setting
11P is the auto sleep time setting. To save the battery power and reach higher range, this display will be turned off after it has not been used for a time. The adjustable range is: 1~60min, 00 means no auto shutdown. The factory default setting is 10 minutes.
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.

Shortcut Operation

7.1 Restore factory settings operation
dEF is the restore factory default parameter settings. dEF-Y is to restore default settings, and dEF-N is not to restore.
Enter into the main setting interface and keep the speed at 0, press and hold and simultaneously for 2s to enter the restore factory default setting interface. Pressing / to toggle to dEF-Y. Then after pressing to confirm, the display will show dEF-0 for a few seconds and then automatically start to restore the factory default settings.
The display will automatically exit to setting interface after the restoration.

7.2 Trip odometer reset operation
The display can record trip odometer and odometer. Trip odometer is not automatically reset after turning off. The trip odometer needs to be reset manually.
Enter into the main setting interface and keep the speed at 0, press and hold and simultaneously for 2s to reset the trip odometer. The main interface will flash during the reset process.

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.

8.2 Warranty does not cover

The shell is opened.
The connector is damaged.
Scratches on the appearance after the product is out of factory.
Scratched or broken wires
Failure or damage caused by force majeure (e.g. fire, earthquake, etc.) or natural disaster (e.g. lightning strike, etc.)
Out of warranty period.

Wire Connection Diagram

Standard wire connection sequence:

Table 9-1 Standard connector wire sequence table

Standard Wire Sequence	Standard wire color	Function
1	Red (VCC)	Display power wire
2	Blue (Kp)	Controller power wire
3	Black (GND)	Display ground wire
4	Green (RX)	Display data reception wire
5	Yellow (TX)	Display data transmit wire

Some models are equipped with waterproof connectors and the color inside wires can not be seen.

Precautions

Pay attention to all the general operating when using the products and do not plug and unplug the display while it is powered on.

Avoid bumping the display as much as possible.
Please do not change the parameter settings at will, otherwise normal riding cannot be guaranteed.
If display does not work properly, please send it to the repair center as soon as possible.
There may be differences between the physical products and this manual due to normal upgrade. Please refer to the physical products.

Schedule 1: Error Code Definition