Custom Built eBikes Bafang C965 A User manual
https://custombuilt-ebikes.co.uk
Bafang C965 A
Instruction Manual
V1.0
Model:APT12LCD800S
1 Features
Easy to operate physical buttons
Speed display: AVG SPEED, MAX SPEED, SPEED(Real-time).
Kilometer / Mile: Can be set according to your requirements
Smart battery indicator: Reliable battery meter giving accurate battery
measurements
Adjustable backlight: 5 levels
Up to 9 assistance levels: Optional 3 / 5 / 9 levels
Mileage indicator: Odometer/Trip distance/ Riding time
Error code indicator: Easy fault diagnosis
External USB programming: Multiple settings can be set through a PC via a data
link cable including assist level numbers/ Wheel diameter / Voltage / Speed limit.
2 LCD instructions
The diagram below shows the layout of the LCD display
Speed mode
Lamp
Battery indicator
PAS level
Mileage mode
Mileage information
Speed display
ERROR code
Brake
3 Operation
7.1 Power On/Off
Press and hold the Power button for 1 second to turn the display on or off. The display
will automatically shut down when there are no buttons are pressed and the bike is not
being ridden after a set number of minutes (which can be adjusted from 1 –9 minutes).
7.2 Assistance levels
Briefly press either the UP or DOWN buttons to change the assistance levels. Top
assistance level is 9, use 0 for no assistance. Assistance levels can be adjusted
according to your requirements via a PC programming kit.
Assistance levels operating
7.3 Speed mode switch & mileage mode switch
Briefly press the POWER button to change the speed mode and the mileage mode,
Speed->AVG Speed->MAX Speed->Trip->ODO-> Time.
Speed mode switch and mileage mode switch
*If there is no operation for 5 seconds, the display will return to the speed (Real-Time) display
automatically.
7.4 Headlight/backlight On/Off
Press and hold the UP button for 1 second to turn on/off the headlight/backlight.
When the battery voltage gets too low, the motor is disabled to prevent the battery from being
damaged. However, the headlight will continue to operate for a period of time to enable you to cycle
home safely without motor assistance.
7.5 6km walk
Press and hold the DOWN button for 1 second to access the walking mode.
Time
ODO
Trip
MAX speed
Speed
AVG speed
7.6Data cleanup
Press and hold the UP and DOWN buttons together for 1 second to reset the trip data
including average speed, maximum speed and time.
4 Settings menu
Double press the POWER button to access the settings menu. Briefly press the UP/DOWN
buttons to change the settings value, briefly press the POWER button to switch to the next
setting. Double press the POWER button to exit the settings menu. The display will
automatically exit the settings menu when there is no operation for 10 seconds.
The order of settings is as follows.
4.1 Kilometer / Mile : Settings option S7, press the UP/DOWN button to change from
km/h to MPH (Km / Mile)
Backlight
Brightness
Auto off time
Wheel diameter
Voltage set
Speed limit set
Kilometer/Mile
Password
4.2 .Backlight brightness: Settings option bL1, press the UP/DOWN button display
symbol 1~5 to changes the brightness of the backlight.
4.3 Auto off time: Settings option OFF, press the UP/DOWN button to change the
value from1to 9(minutes). This is the time before the screen powers down when not in
use. The default value is 5 minutes.
4.4 Wheel diameter: Settings option Wd, press the UP/DOWN button to change the
wheel size settings (in inches) 16/18/20/22/24/26/700C/28/29. Having too large or
small size will cause you speed display to be inaccurate. If in doubt, wheel sizes are
usually embossed on the side of your tire.
4.5 .Voltage set: Settings option bU0, press the UP/DOWN button to select -
24V/36V/UbE. Please note UbE means user-defined voltage setting, this value can be
set through the USB PC interface.
4.6 Password/Speed limit set: Settings option PSd, you need to enter a 4 digit PIN to
enter this menu –press the UP/DOWN buttons to change the password values (0~9),
briefly press the POWER button to switch to the next number. The default password is
"1919". Press the POWER button when the correct password is entered. The display
will return to the Voltage set item if the password is incorrect. The correct password will
enter the Speed limit set menu item.
4.7 Speed limit set: Settings option SPL, by default this is set to the UK legal setting
of 25km/h. Press the UP/DOWN buttons to modify the value, it can be set from 10 to
45km/h. Press the POWER button to confirm when you have finished adjusting.
NOTE: The UK legal maximum speed for electric assistance is 25KPH or 15.5MPH.
Setting this value higher than this will make your bike illegal to use on public
roads.
The maximum speed is often beyond the ability of the motor to reach –just setting a value of
45kmph does not mean that you can actually reach 45kph.
5 Error Code definitions
When the LCD displays the icon, an error code will be displayed in the speed area of
the display. The table below defines the error codes:
Error Code
Error description
Error display
0x01
Normal
No error
0x03
Brake signal
No error
0x04
Throttle on high position
Display 04H on speed position
0x05
Throttle error
Display 05H on speed position
0x06
Low voltage protection
Display 06H on speed position
0x07
High voltage protection
Display 07H on speed position
0x08
Motor’s hall sensor error
Display 08H on speed position
0x09
Phase line of motor error
Display 09H on speed position
0x10
Controller over temperature
Display 10H on speed position
0x11
Motor over temperature
Display 11H on speed position
0x12
Current sensor error
Display 12H on speed position
0x13
Battery’s temperature sensor
error
Display 13H on speed position
0x14
Motor‘s temperature sensor
error
Display 14H on speed position
0x15
controller‘s temperature
sensor error
Display 15H on speed position
0x21
Speed sensor error
Display 21H on speed position
0x22
BMS communication error
Display 22H on speed position
0x23
Head light error
Display 23H on speed position
0x24
Head light sensor error
Display 24H on speed position
0x25
Torque sensor error-Torque
Display 25H on speed position
0x26
Torque sensor error-speed
Display 26H on speed position
0x30
Communication error
Display 30H on speed position
0x24
Head light sensor error
Display 24H on speed position
0x30
Communication error
Display 30Hon speed position
Clamps suit 3 sizes 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.
7 Output wire instructions
1、Red wire: Anode(24v/36v)
2、Blue wire: Power cord to the controller
3、Black wire: GND
4、Green wire: RxD (controller -> display)
5、Yellow wire: TxD (display -> controller)
8 Assistance level instructions
The assistance levels can be customised, the highest level is 9
3 level
5 level
9 level
0
0
No power assist
1
1
2
1
2
3
4
3
5
2
6
4
7
8
3
5
9
9 Certification
CE / IP65 (waterproof) / ROHS.
10 Electrical Parameters
24V/36V battery supply
Rated operating current: 10mA
Max operating current: 30mA
Off leakage current < 1uA
Max output current to controller: 50mA
Operating temperature: -28～70℃
Storage temperature: -40～70℃
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