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Product name and model
Intelligent LCD display for e-bike; model: YL81C.
Display YL81C provides a variety of functions to meet the riding needs of users, including:
There are three buttons on the operating unit of display YL81C, i.e., the on/off button , plus button and minus button .
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 and holding 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.
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) and average speed (km/h).
When the distance reaches 9999.9 km, it will be automatically reset to zero.
By pressing and holding the button , the electric push assistance mode will be enabled. Your e-bike will run at the constant speed of 6km/h. The display will show level P. By releasing the button , your e-bike will immediately stop power output and return to the state before push assistance.
By pressing and holding the button , the controller will turn on the headlights and the display backlight will turn dark. By pressing and holding the button again, the controller will turn off the headlights and the display backlight will resumes the luminance.
By pressing the button , the e-bike assist level will be switched to change the motor output power. The assist levels available for the display include: levels 0-3, levels 1-3, levels 0-5, levels 1-5, levels 0-7, levels 1-7, levels 0-9 and levels 1-9.
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.
When a fault occurs in the electronic control system of your e-bike, the display will automatically indicate the error code in the distance area in the format of E0**. Detailed definitions of error codes are shown in Schedule 1.
Press and hold the buttons and at the same time for more than 2 seconds to reset the trip distance.
dEF refers to factory reset. dEF-n represents not to restore factory settings, and dEF-y represents to restore factory settings. Press and hold the buttons and at the same time for more than 2 seconds to enter the factory reset interface, and press the button to select a parameter.
P1 refers to the rated voltage setting option. Available values include: 36V and 48V. 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.
P2 refers to the wheel diameter setting option. Available parameters include: 8-32 inches. 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.
P3 represents the speed limit setting option. The adjustable range is 10~40km/h. 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.
P4 refers to the metric/imperial system setting option. 00 represents the metric system, and 01 represents the imperial 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.
P5 refers to the speed sensor setting option, which can be set according to the number of magnetic heads installed on the wheels of your e-bike. The setting range is 1-63. 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.
P6 refers to current limit setting. The adjustable range is 1-25A. 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.
P7 refers to the assistance sensor setting option, where the number of steel magnets of the assistance magnetic disk can be set. The adjustable range is 5, 6, 7, 8, 9, 10 and 12. 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.
P8 refers to the power-on password setting option. PSd-Y means that a power-on password is required, and PSd-N means that no power-on passwords are required. The default value of the display is PSd-N. Press the button to enter the modification interface, and press the button to enter the selection interface.
If PSd-N is selected, press the button to return to the selection interface of custom setting options;
If PSd-Y is selected, press the button to enter the password setting interface. If you don t want to change the password, press and hold the button to exit the custom setting interface. If you want to change the password, press the button for cursor movement and the button for figure selection, and then press the button to return to the selection interface of custom setting options.
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 |
Please use safely, and do not plug or unplug the display when it is powered on.
Error codes for protocols YL-01 and YL-02: | |||
Error codes | Definition | Error codes | Definition |
E001for | Controller Abnormality | E004 | Throttle Abnormality |
E002 | Communication Abnormality | E005 | Brake Abnormality |
E003 | Motor Hall Signal Abnormality | E006 | Motor Phase Abnormality |
Error codes for protocols YL-05, KDS and YL-J: | |||
Error codes | Definition | Error codes | Definition |
E021for | Current Abnormality | E024 | Motor Hall Signal Abnormality |
E022 | Throttle Abnormality | E025 | Brake Abnormality |
E023 | Motor Phase Abnormality | E030 | Communication Abnormality |
Tel: 022-86838795
Fax: 022-86838795
Email: yolin@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
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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