Yolin YL91F-V Electric Bike Display User Manual
- September 4, 2022
- Yolin
Table of Contents
- Product Name and Model Number
- Specification
- Appearance and Size
- Function overview and Functional areas
- Routine operation
- Personalized parameter settings
- Shortcut operation
- Quality Assurance and Warranty
- Wire connection diagram
- Precautions
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
Electric Bike Display
User’s Manual
YL91F-V
Product Name and Model Number
Smart LCD display for electric bicycle; Model: YL91F-V.
Specification
- 36V/48V/52V 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
Appearance and Size
Function overview and Functional areas
4.1 Functional overview
The YL91F-V 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)
-
The cruise control indicator (optional)
-
Bluetooth connection indicator (optional)
-
Personalized parameter settings (e.g. wheel diameter, speed limit, battery power setting and PAS parameter setting,
password setting, controller current limit setting, etc.). -
Factory default parameter recovery function
4.2 Functional areas
4.3 Button definitions
The YL91F-V 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
Odometer (km) by default. Short press to switch between Odometer (km), Trip
Odometer(km), Maximum Speed (km/h), and Average Speed (km/h).
Figure 5-1 Display Interface
Switching
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 per hour and the display
shows . Release the button to stop the power output immediately and restore to
the state before the 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 ma the controller turns off the lights and the
backlight restores brightness.
5.5 PAS level selection
Press to switch the PAS level of the 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.
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 bicycle will not be able to drive normally after the problem occurs.
Personalized parameter settings
Each set 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 / to select the parameter, long press for additional operation, and long press for subtraction operation.
- Press to save the pa ameter 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
P1 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 arameter setting and return to the
personalized parameter setting interface. 6.2 Rated voltage setting
P2 is the rated voltage setting. The available rated voltage range is: 24V, 36V, 48V, 52V.
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
P3 is the Pedal assist (PAS) level setting. The available Pedal assist level
settings are 0~3, 1~3, 0~5, 1~5, 1~7, 0~7, 0~9, and 1~9.
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.
6.4 Wheel diameter setting
P4 is the wheel diameter setting. The adjustable wheel diameter range is
1~50inch.
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.
6.5 Number of speed sensor magnets setting
P5 is the speed sensor magnet number setting. The adjustable speed sensor
magnet number range is: 1 ~ 100 pcs.
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
P6 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 to save the parameter setting and return to the
personalized parameter setting interface.
6.7 Start-up setting
P7 is the start-up setting. The display can choose the following start modes:
00→zero start, 01→non-zero start.
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 Drive mode setting
P8 is the drive mode setting. The available drive modes are: 00→Pedal assist
only, 01→Electric only, 02→Both Pedal assist and electric.
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.
6.9 Pedal assist sensitivity setting
P9 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 a 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 to save the parameter setting and return to the
personalized parameter setting interface.
6.10 Pedal assist strength setting
PA is the Pedal assist strength setting. The Pedal assist strength is the
relative strength of the PWM signal from the controller when starting to
activate the 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 to save the parameter setting and return to the
personalized parameter setting interface.
6.11 Number of pedals assist sensor magnets setting
Pb is the number of pedal assist sensor magnets set. The adjustable range:
1~15 pcs.
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.
6.12 Controller Current Limit Setting
PC is the controller’s current limit setting. The adjustable range is: 1~50A.
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.
6.13 Battery under voltage value setting
Pd is the battery under voltage setting. The value can be adjusted based on
the currently rated voltage.
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.
6.14 Power-on password setting
PE is the power-on password setting. The power-on password is not activated by
default but users can activate it by setting PSD-y. The factory default
password is 1212. Users can set another 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.
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 finishing setting the four
digits in turn.
6.15 Auto Sleep Time Setting
PF is the auto sleep time setting. To save the battery power and reach a
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 the
factory 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 the 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. The odometer can not be reset. 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 product defects under normal use during the warranty period.
- The product is warranted for 12 months from the date out of the 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 the 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
9.1 Standard wire connection sequence
| 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 operations 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 the 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 upgrades. Please refer to the physical products.
Schedule 1: Error Code Definition
YL-01, YL-02 Error codes
Error code| Definition| | Error code| Definition
E001| Controller failure| E004| Throttle failure
E002| Communication failure| E005| Brake failure
E003| Hall failure| E006| Motor phase failure
YL-05, KDS, YL-J Error codes
Error code| Definition| | Error code| Definition
E021| Current failure| | E024| Hall failure
E022| Throttle failure| | E025| Brake failure
E023| Motor phase failure| | E030| Communication failure
Schedule 2: Pedal assist level default ratio value
Level| | | | | | | | |
---|---|---|---|---|---|---|---|---|---
Leve| | 1| 2| 3| 4| 5| 6| 7| 8| 9
selection| | | | | | | | |
0-3/1-3| 50%| 74%| 92%| –| –| –| –| –| –
0-5/ 1-5| 50%| 61%| 73%| 85%| 96%| –| –| –| –
0-7/ 1-7| 40%| 50%| 60%| 70%| 80%| 90%| 96%| –| –
0-9/ 1-9| 25%| 34%| 43%| 52%| 61%| 70%| 79%| 88%| 96%
Tel: 022-86838795 Fax: 022-86838795
Email: [email protected]
Website: www.yolintech.com
Address: Tianjin Beichen District, Tianjin Beichen Economic Development Zone,
Medical Equipment Industrial Park, East of
Jingfu Highway, Ugu New Science Park 52-1 plant