BIGSTONE C300-LCD User manual

C300-LCD Instructions
Nanjing Bigstone Electronic & Technology co.,Ltd

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CONTENT
ABOUT THE USER MANUAL ............................................................................................................ 2
OUTLOOK AND SIZE .......................................................................................................................... 2
MATERIAL AND COLOR ......................................................................................................................... 2
BUTTON DEFINITION ........................................................................................................................ 3
FUNCTION SUMMARY....................................................................................................................... 4
FUNCTION SUMMARY .......................................................................................................................... 4
FULL VIEW AREA................................................................................................................................. 6
NORMAL VIEW AREA .......................................................................................................................... 6
NORMAL OPERATION ....................................................................................................................... 7
1、ON/OFF .......................................................................................................................................... 7
2、CURRENT DISPLAY........................................................................................................................... 7
3、SPEED DISPLAY................................................................................................................................ 7
4、KM/H &MPH ................................................................................................................................ 8
5、BACKLIGHT INDICATOR ................................................................................................................... 8
6、6KM/H WORK ................................................................................................................................ 8
7、ASSIST LEVEL SELECTION ............................................................................................................... 8
8、ERROR CODE INDICATOR ................................................................................................................. 9
9、SET OPEARATION....................................................................................................................... 9
10、DISTANCE INDICATOR.......................................................................................................... 11
11、TRIP TIME INDICATOR .......................................................................................................... 12
12、BATTERY INDICATOR................................................................................................................... 12
13、CABLE DEFINITION ...................................................................................................................... 13
14、AUTO SLEEP AFTER 5MINUTES.................................................................................................... 13
PREPARATION BEFORE OPEN THE POWER ............................................................................ 13
INSTALLATION INSTRUCTIONS .................................................................................................. 13
COMMON PROBLEMS & SOLUTIONS......................................................................................... 14
QUALITY & WARRANTY ................................................................................................................ 15
QUALITY &WARRANTY：......................................................................................................... 15
OTHER ITEMS：............................................................................................................................ 15
VERSION CHANGE............................................................................................................................ 15
ERROR CODE TABLE ................................................................................................................... 1615

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ABOUT THE USER MANUAL
Dear users,
To ensure better performance of your e-bike, please read through the
C300-LCD product introduction carefully before using it. We will inform
you all the details concisely（including hardware installation, setting and
normal use of the display）when using our display. Meanwhile, the
introduction will also help you solve possible confusion and malfunction.
OUTLOOK AND SIZE
MATERIAL AND COLOR
C300 products are made of black ABS material and the buckle is made of
nylon material. Under the temperature of -20 to 60, the shell material
can ensure normal usage and good mechanical performance of the
products.
Dimension figure (unit: mm).

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BUTTON DEFINITION
C300 has four buttons, including ON/OFFSETUP and DOWN.
“ON/OFF” names to “ ”, “SET” names to “SET”, “UP” names
to “ ” and “DOWN” names to “”.
“ON/OFF” names to “ ”, “

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FUNCTION SUMMARY
FUNCTION SUMMARY
C300 provides a wide range of functions and indicators to fit the
users’ needs. The indicated contents are as below.
1. ON/OFF
2. Current display
3. Speed display
4. KM/H & MPH
5. Backlight indicator
6. 6KM/H work
7. Assist level selection
8. Error code indicator
9. SET operation
10. Distance indicator
10.1 Total distance (ODO)
10.2 Trip distance
11. Trip time indicator
12. Battery indicator
13. Cable definition
14. Auto sleep after 5 minutes

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FULL VIEW AREA

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NORMAL VIEW AREA
The normal viewing area of the C300 is shown below.

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NORMAL OPERATION
1ON/OFF
Hold ON/OFF and start the display. The display will provide power
for the controller. Hold ON/OFF again can open the backlight. With
display on, press ON/OFF for 3 seconds to turn off the power. With the
display off, there is no battery consumption. The leakage current is no
more than 2 µA.
※The panel will go to sleep when speed is 0 km/h for 5 minutes.
2CURRENT DISPLAY
That represents the discharging current of the controller currently, each
segment is 2A, six segments is >=12A.
3 SPEED DISPLAY
It displays the current riding speed of e-bike. The speed display is as
below.

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4KM/H & MPH
Select KM/H or MPH for the speed and mileage, display will be the
currently selected units display.
5BACKLIGHT INDICATOR
With the power on, click the ON/OFF and turn on the backlight. Click it
again and turn off the backlight.
66 KM/H WORK
Hold UP for 2 seconds and enter into the mode of power assist walk. The
e-bike is traveling at 6Km/h. Display as shown below.
7ASSIST LEVEL SELECTION
Click UP or DOWN to change the stages and output power ratio, the
output power range from level 1 to level 6 for the default (the levels can
be customized by user) , the default value is level 1.

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8ERROE CODE INDICAYOR
If there is something wrong with the electronic control system, the
display will flash at 1 HZ and show the error code automatically.
Different error code is corresponding with different fault information,
please see the last page Error code table for details.
9SET OPEARATION
9.1 Reset trip distance, trip time and max speed
Hold DOWN for 3 seconds to clear trip distance, trip time and max
speed.
trip distance trip time max speed
9.2 Wheel diameter setting

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Hold SET for 10 seconds to enter into wheel diameter setting. Select the
accurate wheel diameter value to ensure the accuracy of display about
speed and mileage.
※Click UP or DOWN to set the wheel diameter.
9.3 Max speed setting
Hold UP, DOWN and SET for 1 second to enter into the max speed
setting interface.
The max speed is 25 km/h for the default. User can modify the value of
max speed, when the riding speed exceeds the setting value, the controller
will stop supplying power to the e-bike, in order to ensure the safety of
rider. The max speed ranges from 20 km/h to 40 km/h.
※Click UP or DOWN to select the limited speed.
9.4 KM/H & MPH
Hold UP, DOWN and SET for 5 seconds to switch the KM/H & MPH

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selection.
9.5 Limited current setting
Hold UP and SET for 3 seconds to set the limited current value.
9.6 Software version number checking
Press DOWN and SET for 2 seconds to display the communication
protocol version number.
 Press SET to save and exit the above setting interface.
10DISTANCE INDICATOR
With the display on, press SET to switch the display information. In turn
shows ODO and trip distance.

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10.1 ODO
The ODO records the driving mileage from using.
10.2 Trip distance
Trip distance records the driving mileage, it displays as below.
11TRIP TIME INDICATOR
The trip time records the riding time, it displays as below.
12BATTERY INDICATOR
When the battery capacity is high, the six battery segments are all light.
When the battery is low, the battery frame will flash. It indicates that the

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battery is severely low and needs to be recharged immediately.
Low battery flash
13CABLE DEFINITION
1 Red：Battery +
2 Blue：Weak lock
3 Black：Battery-
4 Green: UART-RECEIVE (RXD)
5 White: UART- SEND (TXD)
14AUTO SLEEP AFTER 5 MINUTES
When the riding speed is 0 km/h for 5 minutes, the system will go to
sleep automatically.
PREPARATION BEFORE OPEN THE
POWER
Ensure that the connectors are better joined and open the power
supply of the e-bike.
INSTALLATION INSTRUCTION
The instrument is fixed on the handlebar, adjust the appropriate

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perspective, and the button is arranged on the easy control position. In the
case of power failure the e-bike, the corresponding connector and
connector controller instrument for inserting installation can be
completed. Attentions! Install the instrument from right to left and avoid
stretching buckle over angle.
Step1: Make the snap ring buckle into the handlebar in direction of
the arrow.
Step2: make the instrument slip insert the snap ring from right to
left.
Step3: Adjust the direction and tighten the low screw after
installation.
COMMON PROBLEM & SOLUTIONS
Q：Why the display is not able to start up？
A：Checking the connector that between display and controller.

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Q：How to deal with the error code?
A：Fix it to the maintenance place immediately. If cannot be
resolved, you can go to the electric vehicle repair points repair it in a
timely manner.
QUALITY & WARRANTY
QUALITY & WARRANTY：
1、Any quality problems in normal case and in guarantee
period, our company will responsible for the warranty
2、The warranty time is 18 months from date of
purchasing.
OTHER ITEMS：
The following items are not belong to warranty scope.
1. It can not be demolished.
2. The damage caused by wrong installation or operation.
3. Shell is broken when display is out of the factory.
4. Wire is broken.
5. Force disaster (such as fire, earthquake, etc.) or natural
disasters like lightning, etc caused by fault or damage.
6. Beyond Warranty period.
VERSION CHANGE
The instrument instructions are the operating instructions of
common software version of Nanjing Bigstone Electronic & Technology
Co., Ltd. (V3.1 version). The instrument software version that using on

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the part of the vehicle are likely different from this specification, with the
actual use of version shall prevail.
ERROR CODE TABLE
The error code is corresponding with the fault definition.
Error code
definition
0
normal
1
Current error or MOS damaged
2
Throttle error(Start detection)
3
motor no phase position
4
Hall error
5
Brake error(Start detection)
6
Under voltage
7
Motor stalling
8
communication controller receiving error
9
communication display receiving error