MAESTRO II LCD MANUAL
This manual take you through the display and settings of the MAESTRO II LCD.
Product name and model
Name: Intelligent TFT display for E-bike
Model: KD986
YouTube illustration: https://youtu.be/ONoBkFbE7E
Control Unit
Switching the E-bike System On/Off
Press the power button (middle button) to switch on the E-bike system for 2 seconds.
Switch the e-bike off by holding the power button in for 2 seconds. The E-bike no longer uses the battery power.
When parking the E-bike for more than 10 minutes, the E-bike system switches off automatically.
Display Interface (The LCD display)
After switching on the E-bike system, the display will show Speed and Trip Distance as default. Pressing the “i” button (middle button on the control unit) 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-assist Mode
Be off the bike to use this mode. To activate the push-assistance function, hold the button under the “-” button of the control unit. After 2 seconds, the E-bike’s motor is activated at a constant speed of 6 km/h while the screen displays “ ”. The push assist function is switched off as soon as you release the “-” button. The E-bike stops the power output immediately.
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 front light On/Off
To switch the headlight on, hold the “+” button on the control panel briefly. The backlight brightness of the LCD display, is automatically reduced. Hold the “+” button in again, the lighting can be switched off. (Some models have an automatic lights on when the unit is powered on)
Assist Level Selection (PAS level)
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 “7”, The output power is zero on Level “0”. Level “1” is the minimum power. Level “7” is the maximum power. When you reach “7”, press the "+" button again, the interface still shows “7”, and blinks at“7” 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”. The PAS level is indicated on the LCD display in the bottom/middle (PAS 1 in this case)
Battery Indicator
The five battery bars represent the capacity of the battery as displayed on the top left of the LCD display. (In this case the level is 70%) The five battery bars are bright when the battery is in high voltage. When percentage is 0%, the battery needs to be recharged.
Motor Power Indicator
The power of the motor used is indicated on the blue bar on the LCD display.
USB connection
A USB charge port comes standard with the LCD and can be used to charge a device. If so, the LCD will indicate that the USB is in use.
Display Settings
Press the On/Off button on the control unit to switch on the display.
To access Setting page, hold both the “+” button and the “-” button for 2s. Using the “+” and “-“ button, you can move from one setting to the other. The power On/Off is used to enter the setting. Move to “Display Settings” and enter with the middle button (On/Off switch)
All the Settings are operated in the case of a stationary E-bike.
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.
Unit km/mile Conversion
Toggle Unit represents unit settings as above to select either km/h or miles per hour.
Backlight Brightness Settings LCD Luminance represents backlight brightness. 100% is the highest brightness. The less the percentage, the lower the backlight brightness. To change the backlight brightness, follow the same step as discussed before.
Default settings.
If you want to reset the default settings you may do so. Use the step as before.
ADVANCED SETTINGS (Take care before changing any of the default settings)
After the Display Settings are done, Press Back to return to Setting page.
Press UP/DOWN button to choose Advanced Settings and press “i” button to enter
Advanced Settings page.
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 0-7.
To change 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.
Controller Over-current Cut Settings
Current Limit represents controller over-current cut settings. The current value can be changed from 7.0A to 25.0A.
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.
Power Assistant Sensor Magnets
Assistant Num represents the number of magnets in the PAS disk. The settable range is “5” to “24”.
To change the magnet number of power assist sensor, press the “+” or the “-” button to choose the desired number.
To store a changed setting, press the “i” button to confirm.
Speed Sensor Speed Sensor represents speed sensor settings.
To change speed sensor settings, press the “+” or the “-” button to select the quantity of magnet heads on the e-bike spoke (the range is from 1 to 15).
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 applying pedal power. The range is “1-4”. “4” is the slowest. The default value is “1”. To change slow start up settings, press +/- button to choose the desired value. And 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 on 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
Quality Assurance and Warranty Scope
Ⅰ Warranty
（1）The warranty will be valid only for products used in normal usage conditions.
（2）The warranty is valid for 24 months after the shipment or delivery to customers
Ⅱ The following fall outside the warranty scope.
- The display is demolished or damaged or abused or incorrectly used.
- The damage of the display is caused by wrong installation or operation.
- Shell of the display is broken when the bike was delivered.
- Wire of the display is broken.
- The fault or damage of the display is caused by the force majeure (e.g., fire, earthquake, etc.).
- Beyond Warranty period.
*This manual instruction is a universal version for DISPLAY KD986. Some versions of this display may be different from specification to specification as to the software.
Please always refer to an actual version.
Attached list 1：Error code definition
Error Code Definition
21 Current Abnormality
22 Throttle Abnormality
23 Motor Phase Abnormality
24 Motor Hall Signal Abnormality
25 Brake Abnormality
30 Communication Abnormality