BURCHDA e-bike display manual - KD926

KD926 is currently used in BURCHDA HC26 dual-drive electric bicycles.

Please note:

This manual is for reference only. Due to the continuous upgrading of ebikes, the content may be outdated. Please refer to the manual provided with the ebike for details.

Since the factory settings of ebikes can meet most usage scenarios, ordinary users generally do not need to read this more complicated manual.


Product Name and Model


Intelligent LCD display for E-bike; model：KD926

 

Specifications


●36V/48V Power Supply
●Rated working current：25mA
●The maximum working current：30mA
●Off leakage current：＜1uA
●Supply the working current of the controller：50mA
●Operating temperature：-20～60℃
●Storage temperature：-30～70℃

 

Appearance

KD926 display manual

 

Function Summary


KD926 can provide a lot of functions to fit your needs. The indicating contents are as
follows:
●Battery capacity indicator
●Motor power indicator
●PAS level adjustment and indicator
●Speed indicator (incl. real speed, Max. speed and Avg. speed)
●Distance（Trip and ODO）
●6km/h push assistance
●Trip time
●Backlight
●Error code
●USB connection
●Various Parameters Settings (e.g., wheel size, speed-limited, battery capacity
setting, assistance level parameter setting, power-on password settings, controller current limiting settings etc.)
●Default parameter recovery function


Functional area

KD926 instrument manual

 

Definition of Button

The KD926 display matches the K5 button. K5 has 5 buttons: including on/off, i key,
plus key, headlight key, minus key/boost key; in the subsequent description, the on/off key
uses the word "ON/OFF" replace; the i button is replaced with the word "i"; the plus button
is replaced with the word "UP"; the minus/boost button is replaced with the word "DOWN".

 

General Operation

◆Power on/off

After long pressing the "ON/OFF" button for 2 seconds, the display starts to work and
provides working power to the controller. In the power-on state, press and hold the
"ON/OFF" button for 2 seconds to turn off the power of the e-bike. In the shutdown state, the display no longer uses battery power, and the leakage current of the meter is less than 1uA.

■When parking the E-bike for more than 5 minutes, the E-bike system switches off automatically

◆Display Interface


After the display is turned on, the display shows real-time speed (km/h) and Trip(km)
by default. Short press the "i" button to display information on TRIP (km), ODO (km), TIME (min), MAX speed (km/h), average speed AVG (km/h), Switch between cycles.

burchda hc26 manual

◆6km/h Push-assistance

Press and hold the "DOWN" button. After 2 seconds, the e-bike will enter the electric
power-assisted driving state. The e-bike travels at a constant speed of 6km/h. At the same time, the screen displays "ride icon ". Release the "DOWN" button and the e-bike will
immediately stop power output and return to the state before boosting. Execution is only enabled in PAS level 0.

Push-assistance Mode
■The power-assisted push function can only be used when the user is pushing the e-bike please do not use it while riding.


◆Turn on/off backlight


Click the "Headlight" button to turn on the display backlight and notify the
controller to turn on the headlights. When the external light is insufficient or
driving at night, the LCD backlight can be turned on. Click the "Headlight"
button again to turn off the LCD backlight and notify the controller to turn off the headlights.
burchda hc26 dual drive

Turn on/off backlight interface


◆PAS level


Short press the "UP" or "DOWN" button to switch the e-bike assist level and change
the motor output power. The default range of the display is PAS level 0-5, PAS level 0 is
unassisted, PAS level 1 is the lowest power, and PAS level 5 is the highest power. When
reaching level 5, short press the "UP" button again, and the interface still displays 5. After the power-assisted downshift reaches 0, short press the "DOWN" button again, and the interface still displays 0.
burchda ebike manual
PAS level interface

◆Motor selection

Long press the "i" button, switch the front and rear motors, change the motor output
mode, the instrument is divided into front drive, rear drive, dual drive, no drive, the
default range is rear drive.

Motor selection interface


◆Battery capacity



The battery power is displayed in 10 grids. The following are: under voltage (one grid
flashes), 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100% power. state.
burchda battery power interface

Battery capacity interface


◆USB Connection


When the display is plugged into a USB external device, the display will show the
interface in the figure below.

burchda usb connection
USB connection interface


◆Brake display


When the e-bike brakes, the display show mode is as shown in the following figure.

burchda ebike brake interface
Brake interface

◆Cruise control display


Press and hold the minus key in non PAS level 0, and when the display enters cruise control, the display show is as shown in the figure below.
cruise control display

Cruise control interface


◆Error code


When the electronic control system fails, it will automatically display the error code.
Here is the detailed message of the error code in Attached list 1.

burchda error code
Error Code Interface

■When an error code is displayed, please remove the fault in time, the e-bike will not
be able to run normally after a fault occurs

General setting


Long press the "ON/OFF" button to turn it on. In the power-on state, when the e-bike
is stationary, press and hold the UP" and "DOWN" buttons for more than 2 seconds to
enter the normal setting state.

■All Settings need to be performed when the e-bike is stationary.

◆Trip reset


TC stands for Clear Single Mileage. Y/N can be selected by pressing the "UP" or
"DOWN" button. Y means reset the trip. N means not reset the trip; short press the "i"
button.

trip reset

Trip reset interface


◆ODO reset


OC stands for ODO reset, the customer can be selected through the "UP" or "DOWN"
button choose Y/N. Y means reset ODO. N means not reset ODO; short press the "i"
button.
burchda odo reset

ODO reset interface


◆Light sensitivity


AL represents the light sensitivity. By pressing the "UP" or "DOWN" button, the
sensitivity can be switched between 0FF and 1-5 levels, with the default level 3; 0FF
represents: turning off the light sensor function. The default is OFF, short press the "i" key to confirm and enter the next setting interface.
Light sensitivity setting interface
Light sensitivity setting interface


◆Backlight brightness


bL represents backlight brightness. Parameters 1, 2, and 3 can be set to indicate the
backlight brightness. 1 is the darkest, 2 is the standard brightness, and 3 is the brightest.
The default brightness of the display is 3. The backlight brightness parameters can be
changed through the "UP" or "DOWN" button, short press the "i" button to confirm, long press the "i" button to confirm and exit the regular setting state.

Backlight brightness interface
Backlight brightness interface

◆Toggle Unit


U represents the unit, 1 represents the imperial system, and 2 represents the metric
system. The speed and mileage units can be converted through the "UP" or "DOWN"
button, short press the "i" button to confirm, long press the "i" button to confirm and exit the general setting state. The default unit of the meter is 2 metric

toggle unit
Toggle Unit Interface

◆Automatic shutdown time Settings


ATF indicates the automatic shutdown time. You can set the automatic shutdown time
of the display. 1 indicates 1min, 5min is the default shutdown time, and 10min is the
longest shutdown time. Press the UP or DOWN button to change the automatic shutdown time parameters. Press and hold down the i button to confirm and exit the general setting.
Automatic shutdown time settings interface
Automatic shutdown time settings interface


◆Restore default settings


dEF stands for restoring default parameters. There are two ways to restore factory
Settings:
1. Press UP or DOWN to switch Y/N. Y indicates that default parameters need to be
restored, N indicates that default parameters do not need to be restored. If Y is selected, hold down i for more than 2 seconds to confirm.
2. On the startup password screen, hold down the i key for at least two seconds.
The instrument will automatically start to restore the default Settings and display dEF-00, and automatically exit and return to the normal display interface after the default is
restored.

Restore default settings interface
Restore default settings interface


Wheel diameter speed limited parameter setting


Press and hold the "UP" and "DOWN" buttons for more than 2 seconds and lift them up to enter the regular setting state. Then press and hold the "i" and "DOWN" buttons at the same time for more than 2 seconds to enter the wheel diameter setting interface and speed limit setting interface.

◆Wheel diameter setting


LD indicates the wheel diameter setting. The wheel diameter setting range is 18inch
to 29 inch. The default wheel diameter is 28inch. Press i to save the settings and go to the next interface.
Wheel diameter setting interface

Wheel diameter setting interface

◆Speed limited setting


LS indicates the rate limit setting. The value range is 12-99 km /H. The default rate
limit is 45KM/H. Press i to save the settings and go to the next interface
speed limited setting
Speed limited setting interface


Advanced parameter settings

Press and hold the "UP" and "DOWN" buttons for more than 2 seconds and then lift
them up to enter the general setting state. Then press and hold the "UP" and "DOWN"
buttons simultaneously for more than 2 seconds to enter the advanced setting interface.

◆Battery capacity setting


VOL represents voltage, and voltage values from 1 to 10 are required to be input one
by one. Take the first power value as an example: "1" on the screen represents the first
voltage, and "40.0" is the first power value. Use "UP" or " DOWN" button to add/subtract to change the value, short press the "i" button to confirm and enter the next power setting interface; after the 10 power value settings are completed, long press the "i" button to confirm and return to the instrument setting item selection interface.

Battery capacity setting interface
Battery capacity setting interface


◆PAS level range setting


SCR stands for PAS level, and provides eight modes in the selection of PAS level: 0-3, 1-3, 0-5, 1-5; Press UP or DOWN to switch, and press i to confirm the switch. The page for setting the ratio value in the corresponding mode is displayed. The default mode is 0-5.
By setting the help ratio value, the speed of each gear can be adjusted to meet the needs of different riders. Take the first gear as an example, "50%" is the default value of the first gear, which is a configurable value. Press "UP" or "DOWN" to add/subtract Settings, press "i" to confirm and enter the next boost ratio setting, a maximum of 9 can be set. After the setting is complete, press and hold "i" to confirm and return to the screen for selecting instrument Settings.

Refer to Schedule 2 for details.

PAS level range setting interface
PAS level range setting interface

◆Current limiting setting


CUR indicates current limit, current range 6A-30A, default 25A. You can adjust current limit by pressing "UP" or "DOWN". After setting, press and hold "i" to confirm and return to the interface for selecting display Settings.
Current limiting setting interface

Current limiting setting interface


◆Speed magnet number setting


SPS represents the number of magnetic steel of the measurement sensor, the range
of magnetic steel of the measurement sensor is 1-15, the default is 1, the number of
magnetic steel of the measurement sensor can be adjusted by the "UP" or "DOWN"
button, after the setting is completed, long press the "i" button to confirm and return to the display setting item selection interface.

Speed magnet number setting interface

Speed magnet number setting interface

◆PAS sensor sensitivity setting


SCN represents the sensitivity of the boost sensor. The sensitivity range of the PAS sensor is 2-9, and the default is 2. The sensitivity of the PAS sensor can be adjusted through the "UP" or "DOWN" button. After the setting is completed, press and hold the "i" button to confirm and return to the display setting item selection interface.
PAS sensor sensitivity setting interface

PAS sensor sensitivity setting interface

◆PAS sensor magnet number setting


PAS indicates the number of magnets for the PAS sensor. The range of magnets for the
power sensor is 4-9/12/24/32. The default value is 12. You can press UP or DOWN to adjust the number of magnets for the power sensor.

PAS sensor magnet
PAS sensor magnet number setting interface


◆Power-on password setting


Psd indicates password setting. Press i to enter the password setting state. P2 is
displayed, indicating the startup password. Press the "i" button to shift, and press the "UP" or "DOWN" button to add or subtract the input value. After entering the 4-digit password, press the "i" button to confirm. If the password is correct, the screen for enabling or disabling the startup password is displayed. The default startup password is 1212. The password is disabled.
Power-on password setting interface

Power-on password setting interface

Press the UP or DOWN button to select Y, and P3 is displayed. Press the i button to
shift, and add or subtract a value by pressing the UP or DOWN button. Press and hold
down the i key to save the Settings and exit the setting screen. After restarting the display P1, 0000 will be displayed. Only after entering the correct password can let the display work normally.
Power-on password setting interface

Power-on password setting interface


Display information interface


Long press the "UP" and "DOWN" buttons for more than 2 seconds to lift, enter the
general setting state. Hold DOWN and hold DOWN the UP and Down buttons for more
than 2 seconds to enter the advanced Settings screen. Hold down and hold down the UP and Down buttons for more than 2 seconds to view the display software information.
Press and hold DOWN the "UP" and "Down" buttons at the same time for more than 2
seconds to view the hardware information of the display.


Display information interface

Exit setup


In the setting state, press the "i" button (within 2 seconds) to confirm the input and
save the current setting; Hold down the i button (more than 2 seconds) to save the current setting and exit the current setting state. Hold DOWN the Down button for more than 2 seconds to cancel the current operation and exit the setting. The current setting data is not saved.

■If no operation is performed within one minute, the instrument automatically exits the
setting state.

Connection Layout

Line sequence table

■Some wire use the water-proof connector, users can not see the inside color

Attached list 1：Error code definition


 Error code Definition
21  Current Abnormality
22 Throttle Abnormality
23 Motor phase
24 Motor Hall signal abnormality
25 Abnorma l braking
30 Communication abnormality





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