Keyde TFT850C User manual

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
Keyde ®
Product
TFT LCD Display
Mode
TFT850C
Abbreviatio
n
850C
Client
Customer
audit
Supplier
Zhejiang Chaoji Electric Tech.Co.,Ltd
Cangyan, Shengzhou, Zhejiang Prov. China.312400
Tel/Fax
0086-575-83621888 /0086-575-83621666
Web
www.keyde.com
Email

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
1．Product Name
TFT LCD display
Model : TFT 850C
2．Suppliers

3．Electrical Parameters
3.2inch IPS screen
24V/33V/36V/battery supply
Rated operating current : 40mA
Max operating current : 100mA (36V battery, with USB equipment changed)
USB changing port : 5V 500mA
Off leakage current < 1uA
Max output current to controller : 100mA
Operating temperature : -20～70℃, Storage temperature : -30～80℃
4．Dimensions & Material
Product shell is ABS, transparent window is made with high strength Acrylic.
Dimensions : host/L92mm*W60mm*H14mm

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
5．Features
Suitable for low temperature，Max -20℃.
High-contrast 3.2inch IPS colorful matrix screen.
Ergonomic external button design, easy to operate.
Speed display : AVG SPEED, MAX SPEED, SPEED(Real-time).
Kilometer / Mile : Can be set according to customers’ habits.
Smart battery indicator : Provide a reliable battery indicator.
5-level backlight brightness adjustment: according to customer preferences set
the backlight brightness, level 1 is the darkest, level 5 is the brightest.
9-level Assist : 3-level/5-level/9-level optional.
Mileage indicator : Odometer/Trip distance/ Clock/ Riding time.
Time indicator: built-in battery, provide a time indicator.
Power indicator : real time power indicator, digital or analog.
Error code indicator.
Software upgraded : Software can be upgraded through UART.
USB charging port : 5V/500mA
6．TFT screen instructions
Battery indicator
Speed mode
Mileage
Power indicator
Clock
Assist level
Logo
Speed value

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
7．Functional Description
7.1 Power On/Off
Press and hold Power button for 1 second can turn on/off the display. The Display can
automatically shut down when there is no operate & ride for X minutes （X could be
0~9）.
*If the display has been set password power on, you need to input the right password before start.
7.2 Assist level operating
Short press UP/DOWN button can change the assist level. Top assist level is 5, 0 for
neutral. Level quantities can be adjusted according to the customer requirements.
7.3 Speed & Mileage mode switch
Short press POWER button can change the speed and mileage mode, AVG
Speed->MAX Speed->RT Speed-> Trip->ODO-> Time.

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
**If there is no operation for 5 seconds, display will return Speed (Real-Time) display automatically.
7.4 Headlight/backlight On/Off
Press and hold UP button for 1 second can turn on/off the headlight, and the scree will
switch to the corresponding mode.
*The motor does not work when the battery voltage is low, Display still can keep the headlight on for a
while when E-bike is in riding.
Daytime mode night mode
7.5 Data cleanup
Press and hold UP & DOWN buttons together for 1 second can reset several temporary
data, temporary data include AVG Speed / MAX Speed / Trip / Time.
* These temporary data can’t be erased by power off.
8．Parameter setting
Double press POWER button (press interval less than 0.3 second) can get into setting
menus, press UP/DOWN buttons to change the parameter setting, press POWER button
can switch to next item. Double press POWER button will exit from menu.
* Display will automatically quit menu when there is no operation for 30 seconds.

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
* For safety reasons, display can’t get into MENU when riding.
* Display will quit MENU when start riding.
The order of parameters are as follow.
system
Brightness
Auto off
Scenes
Battert Ind
Pow Ind
Start password
Clock
8.1 System : Press Up / Down button to switch between Metric / Imperial.
8.2 Brightness : Press Up / Down button to change the brightness of the backlight, 
is darkness， is brightness
8.3 Auto off : Press UP/DOWN button to change the auto power off time, from 1 to 9,
the number represent time (minutes) to shutdown, default value is 5 minutes.

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
8.4 Scenes : Press UP/DOWN button to change the scenes, Digital / Analog.
*Display only support Digital scenes for now, Analog scenes will be supported for future.
8.5 Battery Ind : Press UP/DOWN button to change the battery indicator, Voltage /
Percentage / OFF.
*Accurate percentage needs communication with battery.

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
Voltage Percentage OFF
8.6 Pow Ind : Press UP/DOWN button to change the Power indicator, Analog / Digital.
* This data represent power output of the battery (not motor).
8.7 Clock : Clock setting, press POWER button get into the clock setting menu, press
UP/DOWN button to set Year/Month/Day/Hour/Min/Sec.

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
8.8 Start password : Press POWER button get into the password setting menu. If you
had set Start input ON, you must input right password before power on, password is
accorded to your setting.
You need to input the right password before start with 30 seconds, display will power
off automatically if the password was wrong.
Basic Setting
Wheel
Advanc setting
Battery
Factory setting
Information
*Press DOWN button to move the red arrow to , press POWER button can
show all items of the Basic Setting.

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
8.9 Wheel : Press UP/DOWN can change the wheel setting, optional wheel diameter is
16/18/20/22/24/26/27/27.5/28/29/30/31 inch, 51cm~255cm represent wheel
circumference (this needs controller support).
8.10 Battery : Press UP/DOWN will change battery voltage setting, optional value is
24V/36V/48V/UBE，UBE means user define value.
8.11 Factory setting : Press POWER button enter Restore Factory settings item, set
YES will restore all parameter to factory settings.
8.12 Information : Show information of the E-bike.

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
8.13 Product info : Get into this item can show hardware version software version…
8.14 Battery info : Get into this item can show all information of battery, including
Voltage, Capacity, Cycle times, Health, Temperature of battery, Remaining Capacity,
Full Charge Capacity, Initial Capacity.
*These information needs to be supported by battery communication.
9．Error Code define
850C can show warning message, icon shows on the screen, and show error code at
the bottom of the screen, error code from 01~07, definition see the table below.
Error Code
Error description
Handle
01
Communication Error
Check the cable connection
02
Controller protection
Check three-phase power line.
03
three-phase power error
Check three-phase power line connection
04
Battery low
Charge the battery

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
05
Brake error
Check the brake connection.
06
Throttle error
Check turn to connect.
07
Hall error
Check the hall connection
08-99
Reserved
Please contact the manufacturer for error definitions
10．Assembly instructions
Please pay attention to the screw’s torque value, damaged caused by excessive torque
is not within the scope of the warranty.

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
There are 2 directions for the clamp installation, forward or backward.
Clamps suit for 3 size of handlebar, 31.8mm, 25.4mm, 22.2mm, there are transfer rings for
25.4mm and 22.2mm, transfer ring must be assembled with the special directions, pay
attention to the green arrow below.
11．Connector descriptions

Zhejiang Chaoji Electric Tech.Co.,Ltd 浙江超级电气科技有限公司
Zhejiang Chaoji Electric Technology Co.,Ltd
1、 Red wire : Power cord to the controller
2、 Blue wire : Anode(24v/36v/48V)
3、 Black wire : GND
4、 Green wire : RxD (controller -> display)
5、 Yellow wire : TxD (display -> controller)