Key-Disp KD718 Intelligent Colored LCD for E-bike User Manual

KD718 Intelligent Colored LCD for E-bike
User Manual

Product name and model

Name: Intelligent colored LCD for E-bike
Model: KD718

Specifications

• 36V/48V Power Supply
• Rated working current: 10mA
• The maximum working current: 30mA
• Off-state leakage current: <1μA
• Operating temperature: -20 ℃~ 60 ℃
• Storage temperature: -30 ℃~ 70 ℃

Appearance and Size
◆ Display appearance and dimensional drawing (unit: mm)

◆ Remote control appearance and dimensional drawing (unit: mm)

Function Summary

KD718 can provide a lot of functions to fit the Users needs. The indicating factors are as follows:

• Intelligent Battery SOC indication
• Motor Power indication
• Assist-level indication and selection
• Speed indication (incl. Real-time speed, Max. speed and Ave. speed)
• Odometer and trip distance
• Push-assistance control and indication
• Trip time indication
• Backlight On/Off and indication
• Error code indication
• USB connection indicator
• Various Parameters Settings (e.g., wheel size setting, speed limit setting, battery voltage segmented value setting, power assist parameters setting,etc.)

General Operation

◆ Switching the E-bike System On/Off
Briefly press the power button to switch on the E-bike system. When display is on, hold the power button for 2s, the E-bike system will be switched off and no longer uses the battery power. When switching off the E-bike system, the leakage current is less than 1 μA.
■ When parking the E-bike for more than 5 minutes, the E-bike system switches off automatically.
◆ Display Interface
After switching on the E-bike system, the display will show real-time Speed and Trip Distance by default. Press the “i” button to switch between following elements: Trip  Km) →ODO (Km) →Max. Speed (Km/h)→ Avg. Speed (Km/h) →Time (Min.) .

Display Indication Cycle Interface
◆ Switching Push-assistance Mode On/Off
To activate the push-assistance function, keep holding the “-” button. After 2s, The E- bike’s drive is activated at a speed of less than 6 Km/h while the screen displays “ ”.  he  push-assistance function is switched off as soon as you release the “- ” button on the operating unit .The E-bike system stops the power output immediately.

**Push-assistance Mode

**

■ Push-assistance function may only be used when pushing the E-bike.
Be aware of danger of injury when the wheels of the E-bike do not have ground contact while using the push-assistance function.
◆ Switching the Lighting On/Off
To switch on the bike light, hold the + button. The backlight brightness is automaticallyreduced. Hold the + button again, the lighting can be switched off.

Switching the Lighting Mode On/Off Interface
◆ Assist Level Selection
Briefly press “+” or “-” button to switch between assistance levels so as to change the motor output power, The default assistance level ranges from level “0 ” to level “5 ”,  he output power is zero on Level “0 ”. Level “1 ” is the minimum power. Level “5” is the maximum  power. When you reach “5”, press the “+” button again, the interface  till shows “5”, and blinks at “5 ”to indicate the power highest. After the power downshift reaches “0”, press the “-” button again, the interface still shows “0 ” and blinks at “0   to indicate the power minimum. The default value is level “1”.

Assist Level Toggling Interface
◆ Battery SOC Indicator
The five battery bars represent battery SOC.The five battery segments are bright when the battery is in high voltage. When percentage is 0%, the battery needs to be   echargedimmediately.

◆ Motor Power Indicator
The output power of the motor can be read via below interface

◆ USB connection indication
When the display is inserted into a USB external device, the display interface will show as below.

◆ Error Code Indication
The components of the E-bike system are continuously and automatically monitored. When an error is detected, the respective error code is indicated in text indication area. Here is the detail message of the error code in Attached list 1.

■ Have the display repaired when error code appears. Otherwise, you will not be able to ride the bike normally. Please always refer to an authorized dealer.

Setting

Press the On/Off button to switch on the display on a stationary E-bike. To access Setting page, hold both the “+” button and the “-” button for 2s.

▉All the Settings are operated on an E-bike of no speed.
◆Wheel Diameter Settings
Wheel represents wheel diameter settings. To change basic settings, press the “+” or the “-” button to increase or decrease until the desired value is displayed. The default value is 26 inch. To store a changed setting, press the “i” button to confirm.

◆Speed-limit Settings
Speed Limit represents the limited speed settings. When the current speed is faster than speed limit, the E-bike system power output will be reduced. Speed limit range is 15Km/h to 40Km/h. The default value is 25Km/h. To change basic settings, press the “+” or the “-” button to increase or decrease until the desired value is displayed. To  tore a changed setting, press the “i” button to confirm.

◆Backlight Brightness Settings
Brightness represents backlight brightness settings. Level 5 is the highest brightness. The less the level value, the lower the backlight brightness. To change the backlight  rightness, press the “+” button or the “-” button to choose the desired percentage. To store a changed setting, briefly press the “i” button to confirm.

◆Battery Power Bar Settings
Voltage represents battery voltage segmented value settings. 36V/48V switchable. 5 bar-voltage values for 36V or 48V must be entered one by one. Take 48V for example,  1-” is the first bar voltage value and its default value is 41.2V.  To set battery power bar value, press the “+” or the “-” button to increase or decrease the voltage values. To  tore a changed setting and access the next bar voltage setting, press the “i”  button.In the same manner, after 5 bar-voltage values are entered completely, press the “i” button to confirm.

◆Advanced settings
Advanced setting here deals with PAS parameters settings

◆Speed Sensor
Speed Sensor represents speed sensor magnet numbers settings.
To change speed sensor settings, press the “+” or the “-” button to set the numbers of magnets on the e-bike spoke (the range is from 1 to 15). The default value is 1. To  tore a changed setting, press the “i” button to confirm.

◆Power Assistant Sensor Magnets
Assistant Num represents the number of magnets on the PAS disk. The settable range is “5” to “24”. The default value is 12. To change the magnet numbers for the power assist sensor, press the “+” or the “-” button to choose the desired number. To store a changed setting, press the “i” button to confirm.

◆Assist Level Settings
Assist Level Mode Options
Power Set represents assist level settings. In assist level mode settings, there are 8 modes for your choice ：0-3, 1-3, 0-5, 1-5, 0-7, 1-7, 0 -9, 1-9. The default mode is 0-5. To  hange assist level mode, press the “+” or the “-” button to choose the desired mode  and press the “i” button to confirm and access assist level ratio settings automatically.

◆ Current limit Settings
Current Limit represents controller over-current cut settings. The current value can be changed from 7.0A to 25.0A. The default value is 15A.
To change basic settings, press the “+” or the “-” button to increase or decrease the value of the current.
To store a changed setting, press the “i” button to confirm.

◆ Sensitivity
Sensitivity represents the sensitivity of power assist sensor. It means the motor assist should start after a certain number of magnets are passing the power assist sensor.
To change the value, press the “+” or the “-” button to choose the sensitivity value. The default value can be customized.
To store a changed setting, press the “i” button to confirm.

◆ Slow start
Slow start represents slow start-up settings. It is a time duration before you get power assistance when stepping into the pedals. The range is “0-3”. “3” is the slowest. The defaultvalue is “1”.
To change slow start up settings, press +/- button to choose the desired value. And press the i button to confirm and store a changed setting.

◆ SOC View Settings
SOC V represents 2 display modes of battery SOC. One is by the percent value and the other is by the Voltage value. Press the “+” button or the “-” button to choose the  esired display method. The default view method is by the percent.
To store a changed setting, briefly press the “i” button to confirm.

◆ Auto-off Time Settings
Dormancy represents display auto-off time settings.
To change display automatic shutdown time, press Dormancy and press the “+” button or the “-” button to choose the desired duration. The default auto-off time is 5 minutes. To store a changed setting, briefly press the “i” button.

◆ Unit km/mile toggling
Unit represents unit toggling settings.
To toggle the unit, press the “+” button or the “-” button to choose the desired unit and press the “i” button to confirm The default unit is “Metric (km)”. To store a   hanged setting, briefly press the “i” button to confirm.

◆ Password Settings
Password means display power-on password settings
To access the power-on password setting page, select ‘Password’ in the menu and press “i” button to confirm.
PassWord Set means power-on password settings. Power-on password is a 4-digit code. The default password is ‘1212’.

Power-on Password Disable/Enable
To enable or disable Start PassWord settings, press the “+” or the “-” button to select ON or OFF. ON means enabling a power-on password while OFF means disabling a power-on password. The default value is OFF.
To enable a power-on password, choose ON and press “i” button to confirm and input the current password or default password’1212’. Press the “+”or the “-”button to change the number and press the “i”button to confirm digits one by one until the correct password( current password or default password’1212’ ) is completed.
To disable the current password, choose OFF and press “i” button to confirm and input the current password correctly. The screen displays ‘PassWord CanceledSuccessfully’.  Then the display password is restoring the default code ‘1212’.

Power-on Password Reset
From the last interface above, press the “+” or the “-” button to select ‘Reset PassWord’ anpress the “i” button to confirm to access power-on password reset interface. There are 3 pafor setting up a new password:
In the first page, please enter the current password or default password ‘1212’ correctlyThen it moves to the second page for inputting a new password. Press the “+” or the “-” to increase or decrease the number and then press the “i” button to confirm digits one by ountil a new 4-digit password is completed.
Finally, it comes to the third page and reenter the new password again for confirmation. screen displays ‘ PassWord Reset Successfully’ When switching on the E-bike system next time, please enter the new password to power the display.

◆Factory settings
Factory means restoring to default settings .
To reset to defaults, press the “+” or the “-” button to choose YES or NO. The default is NO.
To store a changed setting, press the “i” button to confirm.

◆Display settings
Display means display basic parameter settings, for example, trip reset etc..

◆Trip Distance Clearance
Trip Reset represents trip distance clearance setting.
To clear trip distance, press the “+” button or the “-” button to select Yes or No. Yes represents clearing a single ride distance. No represents not clearing a single ride distance.
To store a changed setting, briefly press the “i” button to confirm.

◆Exit Settings
Exit means return back to home screen from setting pages.

Quality Assurance and Warranty Scope

Ⅰ Warranty
(1)The warranty will only be valid for products under proper use and maintenance as instructed.
ⅡThe following cases do not belong to our warranty scope.

1. The display is demolished.
2. The damage of the display is caused by wrong installation or operation.
3. Shell of the display is broken when the display is out of the factory.
4. Wire of the display is broken.
5. The fault or damage of the display is caused by the force majeure (e.g., fire, earthquake, etc.).
6. Beyond Warranty period.

Connection Layout

Wiring Illustration

■ Some displays have wire connection with water-proof connectors, users can not see the color of lead wires in the harness.
Warnings:
◆ Use the display with caution. Don’t attempt to release or link the connector when battery is on.
◆ Try to avoid hitting the display.
◆ Don’t modify system parameters to avoid parameter disorder.
◆ Make the display repaired when error code appears.
*This manual instruction is a universal version for DISPLAY KD718. Some  versions of this display may be different from specification to specification as to the software.  lease always refer to an actual version.
Attached list 1：Error code definition

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