YL80C Intelligent LCD Display for E Bike

Product Information

Specifications

  • Power Supply: 48V
  • Rated Working Current: 15mA
  • Maximum Working Current: 30mA
  • Leakage Current at Power-off: [specification missing]

Appearance and Dimensions

The E-bike Display YL80C features a sleek and modern design with
dimensions of [provide dimensions here].

Function Overview and Functional Area Layout

The display provides essential information such as speed,
battery level, assist level, and more. The functional areas are
clearly labeled for easy navigation.

General Operation

  1. Press the power button to turn on the display.
  2. Use the arrow buttons to navigate through different display
    screens.
  3. Monitor your speed, battery level, and other important data
    while riding.

Personalized Parameter Settings

Customize your display preferences by accessing the settings
menu. Adjust parameters such as brightness, units of measurement,
and more to suit your preferences.

Shortcut Operation

Learn quick shortcuts to access commonly used features on the
display. For example, press and hold a specific button to switch
between assist levels quickly.

Quality Commitments and Warranty Scope

We are committed to providing high-quality products. Our
warranty covers manufacturing defects and malfunctions within the
specified warranty period.

Error Code Definitions

Refer to Schedule 1 in the user manual for a detailed list of
error codes and their meanings.

Assist Level Ratio Default Values

Find default assist level ratios in Schedule 2 of the user
manual for reference.

Frequently Asked Questions (FAQ)

Q: How do I reset the display to factory settings?

A: To reset the display to factory settings, navigate to the
settings menu, select the reset option, and confirm the action.

Q: Can I use the display in rainy conditions?

A: The display is designed to be water-resistant but avoid
prolonged exposure to heavy rain to prevent damage.

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User Manual for
E-bike Display
YL80C

Table of Contents
1. PRODUCT NAME AND MODEL ………………………………………………………………………………………………………………………………..1
2. SPECIFICATIONS ……………………………………………………………………………………………………………………………………………………1
3. APPEARANCE AND DIMENSIONS ……………………………………………………………………………………………………………………………..1
4. FUNCTION OVERVIEW AND FUNCTIONAL AREA LAYOUT …………………………………………………………………………………………… 2
4.1 FUNCTION OVERVIEW ………………………………………………………………………………………………………………………………………2 4.2 FUNCTIONAL AREA LAYOUT ………………………………………………………………………………………………………………………………2 4.3 BUTTON DEFINITIONS ……………………………………………………………………………………………………………………………………… 3
5. GENERAL OPERATION …………………………………………………………………………………………………………………………………………… 3
5.1 POWER ON/OFF …………………………………………………………………………………………………………………………………………….3 5.2 DISPLAY INTERFACE …………………………………………………………………………………………………………………………………………3 5.3 PUSH ASSISTANCE …………………………………………………………………………………………………………………………………………… 4 5.4 HEADLIGHT ON/OFF …………………………………………………………………………………………………………………………………………4 5.5 ASSIST LEVEL SELECTION …………………………………………………………………………………………………………………………………5 5.6 BATTERY LEVEL INDICATOR …………………………………………………………………………………………………………………………….. 5 5.7 ERROR CODE INDICATOR ………………………………………………………………………………………………………………………………….5
6. PERSONALIZED PARAMETER SETTINGS …………………………………………………………………………………………………………………… 6
6.1 BACKLIGHT LUMINANCE SETTING ……………………………………………………………………………………………………………………..6 6.2 METRIC/IMPERIAL SYSTEM SETTING ………………………………………………………………………………………………………………….7 6.3 RATED VOLTAGE SETTING ………………………………………………………………………………………………………………………………… 7 6.4 AUTO SLEEP TIME SETTING ……………………………………………………………………………………………………………………………….. 8 6.5 PAS LEVEL SETTING ……………………………………………………………………………………………………………………………………….. 8 6.6 WHEEL DIAMETER SETTING ……………………………………………………………………………………………………………………………….9 6.7 NUMBER OF SPEED SENSOR MAGNETS SETTING …………………………………………………………………………………………………. 9 6.8 SPEED LIMIT SETTING …………………………………………………………………………………………………………………………………….10 6.9 START-UP SETTING ………………………………………………………………………………………………………………………………………… 10 6.10 DRIVE MODE SETTING ……………………………………………………………………………………………………………………………………11 6.11 PEDAL ASSIST SENSITIVITY SETTING ………………………………………………………………………………………………………………….11 6.12 PEDAL ASSIST STRENGTH SETTING ………………………………………………………………………………………………………………………12 6.13 NUMBER OF PEDAL ASSIST SENSOR MAGNETS SETTING …………………………………………………………………………………….. 12 6.14 CONTROLLER CURRENT LIMIT SETTING ………………………………………………………………………………………………………….13 6.15 BATTERY UNDER VOLTAGE VALUE SETTING ………………………………………………………………………………………………………13 6.16 ODO RESETS SETTING …………………………………………………………………………………………………………………………………. 14 6.17 CONTROLLER CRUISE CONTROL SETTING ………………………………………………………………………………………………………………….. 6.18 6KM/H WALK BOOST SETTING ………………………………………………………………………………………………………………………… 14 6.19 POWER-ON PASSWORD SETTING (OPTION) …………………………………………………………………………………………………….. 15
7. SHORTCUT OPERATION …………………………………………………………………………………………………………………………………………16
8. QUALITY COMMITMENTS AND WARRANTY SCOPE …………………………………………………………………………………………………. 17
8.1 WARRANTY INFORMATION: ……………………………………………………………………………………………………………………………. 17 8.2 NON-WARRANTY SCOPE …………………………………………………………………………………………………………………………………..17

9. OUTGOING LINE CONNECTION DIAGRAM ……………………………………………………………………………………………………………… 18 9.1 WIRING SEQUENCE OF STANDARD CONNECTOR ………………………………………………………………………………………………… 18 10. CONSIDERATIONS ……………………………………………………………………………………………………………………………………………..
18SCHEDULE 1 ERROR CODE DEFINITIONS ……………………………………………………………………………………………………….. 18SCHEDULE 2: ASSIST LEVEL RATIO DEFAULT VALUES …………………………………………………………………………………..

1. Product name and model
Intelligent LCD display for e-bike; model: YL80C.
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 Working temperature -2060 Storage temperature -3070
3. Appearance and dimensions
Fig. 3-1 Picture of Display 80C
Fig. 3-2 Picture of Display 80C Buttons
1

Fig. 3-3 Front View of Display 80C Dimensions

Fig. 3-4 Side View of Display 80C Dimensions

4. Function overview and functional area layout

4.1 Function overview Display YL80C provides a variety of functions to meet your riding needs, including: Battery level indicator Assist level adjustment and indication Speed indicator (including real-time speed, maximum speed and average speed) Distance indicator (including trip distance and ODO) Push assistance control and indication Headlight control and indication Error code indicator Custom parameter setting (e.g., wheel diameter, speed limit, assist level, power-on password,controller current limit,
etc.) Reset function
4.2 Functional area layout

Battery level indicator

Headlight indicator

Fault indicator

Speed indicator

Speed unit indicator Metric system: km/h Imperial system: mile/h

Assist level indicator Push assistance indicator
Numeric indicator

Trip distance indicator ODO
Maximum speed indicator Average speed indicator
Unit indicator

Fig. 4-1 Functional Area Layout Interface of Display YL80C

2

4.3 Button definitions There are five buttons on the operating unit of display YL80C, i.e., the on/off button

, plus button

, minus

button , headlight button and switching button .
5. General operation
5.1 Power on/off By pressing and holding the button , the display will start to work and the working power supply of the controller

will be turned on. In the power-on state, by pressing the button , your e-bike will be powered off. In the power-off state,
the display will no longer use the battery power, and its leakage current will be less than 1uA. If your e-bike is not used for more than 10 minutes, the display will be automatically powered off.

5.2 Display interface After the display is turned on, the display will show the real-time speed (km/h) and the trip distance (km) by default.
By pressing the button , the information displayed will be switched between the trip distance (km), ODO (km), maximum speed (km/h), average speed (km/h) and riding power.

Trip distance indicator

ODO

Maximum speed indicator

Average speed indicator Fig. 5-1 Display Interface Switching
3

5.3 Push assistance By pressing and holding the button

, the electric push assistance mode will be enabled. Your e-bike will run at the

constant speed at the promoted speed. The display will show . By releasing the button , your e-bike will immediately stop power output and return to the state before push assistance.

Fig. 5-2 Push Assistance Indicator Interface
The push assistance function can only be used when you are pushing your e-bike. Please do not use it during riding. 5.4 Headlight on/off
By pressing the button , the controller will turn on the headlights and the display backlight will turn dark; by

pressing the button luminance.

again, the controller will turn off the headlights and the display backlight will resumes the

Fig. 5-3 Backlight-on Indication Interface 4

5.5 Assist level selection By pressing the button / , the e-bike assist level will be switched to change the motor output power.

Fig. 5-4 Assist Level Switching Interface
5.6 Battery level indicator The battery level indicator consists of five segments. When the battery is fully charged, the five segments will be all on.
In case of undervoltage, the outline of the battery indicator will flash, which means the battery has to be charged immediately.

Full battery level indication 4-segment indication 3-segment indication

2-segment indication

1-segment indication

Undervoltage flashing Fig. 5-5 Battery Level Indicator Interface
5.7 Error code indicator When a fault occurs in the electronic control system of your e-bike, the display will automatically indicate the error
code. Detailed definitions of error codes are shown in Schedule 1.

Fig. 5-6 Error Code Indicator Interface
When an error code appears on the display interface, please conduct troubleshooting in time. Otherwise, your e-bike will not work normally.
5

6. Personalized parameter settings

All parameters can only be set when your e-bike stops. The steps for general setting are as follows: In the power-on state, when the display shows the speed of 0,

(1) (1) Press and hold the buttons

and

at the same time for more than 2 seconds to enter the personalized

parameter setting interface;

(2) Press the button / to switch the selection interface of general setting options, and press the button

to

enter the parameter modification interface;

(3) Press the button / for parameter selection;

(4) Press the button to save the parameter and return to the selection interface of general setting options;

(5) Press and hold the button to save the parameter and exit the selection interface of general setting options.

6.1 Backlight luminance setting 01P refers to the backlight luminance setting option. Settable range is 0-3, which represent the backlight luminance, 1
for the minimum luminance, 2 for the standard luminance and 3 for the maximum luminance.
Press the button to enter the parameter modification interface. Press the button / for parameter selection.
Press the button to save the parameter and return to the selection interface of general setting options.

Fig. 6-1 Backlight Luminance Setting Interface 6

6.2 Metric/imperial system setting 02P refers to the metric/imperial system setting option. 01 represents the imperial system, and 00 represents the metric
system.
Press the button to enter the parameter modification interface. Press the button / for parameter selection.
Press the button to save the parameter and return to the selection interface of general setting options.

Fig. 6-2 Imperial System Setting Interface

Fig. 6-3 Metric System Setting Interface

6.3 Rated voltage setting 03P is the rated voltage setting. The available rated voltage range is: 24V36V48V60V.

Press

to enter the parameter changing state. Press the / to select the parameter and press

parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-4 Rated voltage setting interface 7

6.4 Auto Sleep Time Setting
04P 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 parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-5 Auto Power Off Time Setting Interface
6.5 PAS level setting 05P is the Pedal assist level setting. The available PAS level settings are: 0~3, 1~3, 0~5, 1~5. Press to enter the parameter changing state. Press the / to select the parameter and press
parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-6 PAS level setting interface 8

6.6 Wheel diameter setting 06P is the wheel diameter setting. The adjustable wheel diameter range is: 1~32inch.
Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-7 Wheel diameter setting interface

6.7 Number of speed sensor magnets setting 07P is the speed sensor magnet number setting. The adjustable speed sensor magnet number range is: 1 ~ 255 pcs.

Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-8 Number of speed sensor magnets setting interface 9

6.8 Speed Limit Setting
08P is the speed limit setting. The adjustable speed limit range is: 1~100km/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 parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-9 Speed limit setting interface

6.9 Start-up setting 09P is the start-up setting. The display can choose the following start modes: 00zero start, 01non-zero start.

Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-10 Start-up setting interface 10

6.10 Drive mode setting 10P is the drive mode setting. The available drive modes are: 00Pedal assist only, 01Electric only, 02Both Pedal
assist and electric.

Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-11 Drive mode setting interface

6.11 Pedal assist sensitivity setting 11P is the pedal assist sensitivity setting. When set to higher numbers, 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. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-12 Pedal assist sensitivity setting interface 11

6.12 Pedal assist strength setting
12P is the Pedal assist strength setting. The Pedal assist strength is the relative strength of the PWM signal from the controller when start to activate pedal assist. The adjustable range is 0 ~ 5. 0 is the weakest strength and 5 is the strongest.

Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-13 Pedal assist Start-up intensity setting interface
6.13 Number of pedal assist sensor magnets setting 13P is the number of pedal assist sensor magnets setting. The adjustable range: 5-12 pcs. Press to enter the parameter changing state. Press the / to select the parameter and press
parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-14 Number of pedal assist sensor magnets setting interface 12

6.14 Controller Current Limit Setting 14P is the controller current limit setting. The adjustable range is: 1~50A.
Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-15 Controller current limit setting interface

6.15 Battery under voltage value setting 15P is the battery under voltage setting. The value can be adjusted based on the current rated voltage.
Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-16 Battery under voltage value setting interface 13

6.16 ODO resets setting 16P is the ODO resets setting. The display can choose the following: 00non reset, 01reset.
Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-17 ODO resets setting interface

6.18 6km/h walk boost setting 18P is the 6km/h walk boost setting. The display can choose the following: 00turn off walk boost function, 01turn
on walk boost function.

Press to enter the parameter changing state. Press the / to select the parameter and press parameter setting and return to the personalized parameter setting interface.

to save the

Figure 6-19 6km/h walk boost setting interface 14

6.19 Power-on password setting (option)
19P 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.

15

Figure 6-20 Power-on Password Activated interface

Figure 6-21 Power-on Password OFF interface

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.

Figure 6-22 Power-on password setting interface
7. 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.

Figure 7-1 Restore Factory Default Settings Interface 16

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.

Figure 7-2 Trip Odometer Reset Interface
8. Quality commitments and warranty scope
8.1 Warranty information: For the faults caused by the quality of the product under normal use, the Company will be responsible for providing
limited warranty during the warranty period. The warranty period of the product is within 12 months from delivery.
8.2 Non-warranty scope The enclosure is opened The connector is damaged The enclosure is scratched or damaged after delivery The outgoing line of the display is scratched or broken Faults or damage caused by force majeure (such as fires, earthquakes, etc.) or natural disasters (such as lightning strikes, etc.) The warranty period has expired
17

9. Outgoing line connection diagram
9.1 Wiring sequence of standard connector

Projection

Groove

Connecting terminal to the

Leading-out terminal of display

Connecting terminal

controller

Fig. 8-1 Outgoing Line Connection Diagram

Table 8-1 Wiring Sequence of Standard Connector

Standard wiring sequence

Standard wire color

Function

1

Red (VCC)

Power cord of display

2

Blue (Kp)

Power control line of controller

3

Black (GND)

Ground wire of display

4

Green (RX)

Data receiving line of display

5

Yellow (TX)

Data transmission line of display

The outgoing lines of some products adopt waterproof connectors, and users cannot see the outgoing line color inside the

wire harnesses.

10. Considerations

Please use safely, and do not plug or unplug the display when it is powered on. Please avoid bumping as far as possible. Please do not alter the background parameter settings of the display at will, otherwise normal riding cannot be guaranteed. If the display fails to work normally, it should be repaired as soon as possible. Due to product upgrades of the Company, part of the displayed contents or functions of the product you bought may be different from the manual, depending on the actual model.

Error codes E001 E002 E003

Schedule 1 Error Code Definitions

Error codes for protocols YL-02:

Definition

Error codes

Controller Abnormality

E004

Communication Abnormality

E005

Motor Hall Signal Abnormality

E006

Definition Throttle Abnormality Brake Abnormality Motor Phase Abnormality

18

Schedule 2: Error Code Definition

Error code Error05 Error06 Error07 Error08
Error09
Error10 Error11

Customize YL-02 (LKLS) Error codes:

Definition

Handling method

Brake failure

Check whether the brakes are in position; Replace the brake handle.

Low-battery

Check whether the battery needs recharging

Motor phase failure Throttle failure

Check whether the hall wire of the motor is loose
Whether to return the handle; Check the connection of the handle, if normal, need
to replace the handle

Controller failure

Check the cable harness connection of the controller or replace the controller
with a new controller

Communication reception failure
Communication transmission failure

Check that the display cable is properly connected
Check that the display cable is properly connected

Emai l : ser vi ce@engwe- bi kes. com

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Documents / Resources

Yolin YL80C Intelligent LCD Display for E Bike [pdf] User Manual
YL80C Intelligent LCD Display for E Bike, YL80C, Intelligent LCD Display for E Bike, LCD Display for E Bike, Display for E Bike, E Bike, Display

References

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