BAFANG DP C181.CAN User manual

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BF-DM-C-DP C181-EN November 2019
DEALER MANUAL FOR DISPLAY
CONTENT
7.1 Important Notice 
7.2 Introduction of Display 2
7.3 Product Description 3
7.3.1 Specifications 3
7.3.2 Functions Overview 3
7.4 Display Installation 4
7.5 Display Information 5
7.6 Key Definition 5
7.7 Normal Operation 6
7.7.1 Switching the System ON/OFF 6
7.7.2 Selection of Support Levels 6
7.7.3 Selection Mode 6
7.7.4 Headlights / backlighting 7
7.7.5 Walk Assistance 8
7.7.6 SERVICE 8
7.8 Settings 9
7.8.1 “Display setting” 9
7.8.2 “Information” 13
7.9 Error Code Definition 15
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DP C181.CAN

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7.2 INTRODUCTION OF DISPLAY
• Model: DP C181.CAN BUS
• The housing material is PC; the Display Glass
is made of high-currentem material:
• The label marking is as follows:
Note: Please keep the QR code label attached
to the display cable. The information from the
Label is used for a later possible software
update.
7.1 IMPORTANT NOTICE
• If the error information from the display
cannot be corrected according to the inst-
ructions, please contact your retailer.
• The product is designed to be waterproof. It
is highly recommended to avoid submerging
the display under water.
• Do not clean the display with a steam jet,
high-pressure cleaner or water hose.
• Please use this product with care.
• Do not use thinners or other solvents to
clean the display. Such substances can
damage the surfaces.
• Warranty is not included due to wear and
normal use and aging.

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DEALER MANUAL FOR DISPLAY
7.3 PRODUCT DESCRIPTION
7.3.1 Specifications
• Operating temperature: -20℃~45℃
• Storage temperature: -20℃~50℃
• Waterproof: IP65
• Bearing humidity: 30%-70% RH
7.3.2 Functional Overview
• Speed display (including top speed and
average speed, switching between km and
miles).
• Battery capacity indicator.
• Automatic sensors explanation of the light-
ing system.
• Brightness setting for backlight.
• Indication of performance support.
• Motor output power and output current
indicator.
• Kilometer stand (including single-trip
distance, total distance and remaining
distance).
• Walk assistance.
• Setting the support levels.
• Energy consumption indicator CALORIES
(Note: If the display has this function).
• Display for the remaining distance.
(Depends on your riding style)
• Setting password.
• Bluetooth function. (the display can connect
to the mobile through Bafang Go APP)

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7.4 DISPLAY INSTALLATION
1. Open the clamps of display and insert
the rubber rings on the inside of the
clamps.
2. Now place the display on to the handle-
bar in the correct position. Now with 2
X M3*12 screws tighten the display into
position. Torque requirement: 1N.m.
3. Open the clamp on the D-pad and place it
in the correct position, Using 1 X M3*10
screw tighten the D-pad onto the handle-
bar. Torque requirement: 1N.m.
4. Please link the display to the EB-BUS cable.

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DEALER MANUAL FOR DISPLAY
7.5 DISPLAY INFORMATION
1
2
3
4
5
12






SERVICE
1Time
2USB charging indicator displays the icon , if
an external USB device is connected to the
display.
3The display shows this symbol, if the
light is on.
4Speed Graphics
5Trip: Daily kilometers (TRIP) - Total kilometers
(ODO) - Top speed (MAX) - Average speed
(AVG) - Range (RANGE) - Energy Consump-
tion (CALORIES(only with torque sensor
fitted)) - Travel time (TIME).
6Display of battery capacity in real time.
7Maintenance indicator.
8Bluetooth indicator.
9Power indicator in watts / amperes.
10 Support level/ Walking assistance
11 Data: Display data, which corresponds to the
current mode.
12 Service: Please see the service section
7.6 KEY DEFINITION
System On/Off
Up
Down

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7.7 NORMAL OPERATION
7.7.1 Switching the System ON/OFF
Press and hold (>2S) on the display to turn on the system. Press and hold (>2S) again to turn
off the system.
If the "automatic shutdown time" is set to 5 minutes (it can be set with the "Auto Off" function, See
"Auto Off"), the display will automatically be turned off within the desired time when it is not in op-
eration. If the password function is enabled, you must enter the correct password to use the system.
7.7.2 Selection of Support Levels
When the display is turned on, press the or (<0.5S) button to switch to the support level, the
lowest level is 0, the highest level is 5. When the system is switched on, the support level starts in
level 1. There is no support at level 0.
7.7.3 Selection Mode
Briefly press the (0.5s) button to see the different trip modes.
Trip: daily kilometers (TRIP) - total kilometers (ODO) - Maximum speed (MAX) - Average speed (AVG) -
Range (RANGE) - Energy consumption (CALORIES(only with torque sensor fitted)) - Travel time (TIME).

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DEALER MANUAL FOR DISPLAY
7.7.4 Headlights / backlighting
Hold the (>2S) button to activate the headlight and taillights.
Hold the (>2S) button again to turn off the headlight. The brightness of the backlight can be set
in the display settings "Brightness". If the display /Pedelec is switched on in a dark environment,
the display backlight/headlight will automatically be switched on. If the display backlight/headlight
has been manually switched off, the automatic sensor function is deactivated. You can only turn on
the light manually, after switching on the system again.

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7.7.5 Walk Assistance
The Walk assistance can only be activated with a standing pedelec.
Activation: Press the button until this symbol appears. Next hold down the button whilst
the symbol is displayed. Now the Walk assistance will activate. The symbol will flashes and
the pedelec moves approx. 6 km/h. After releasing the button, the motor stops automatically and
switches back to level 0.
7.7.6 SERVICE
The display shows "Service" as soon as a certain number of kilometers or battery charges has been
reached. With a mileage of more than 5000 km (or 100 charge cycles), the “Service" function is
displayed on the display. Every 5000 km the display "SERVICE" is displayed every time. This function
can be set in the display settings.

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DEALER MANUAL FOR DISPLAY
7.8 SETTINGS
After the display is turned on, press and hold
the and (>1S) button, to access the
“SETTINGS” menu. By pressing the or
(<0.5S) button, you can select: Display
Settings, Information or EXIT. Then press the
(<0.5S) button to confirm your selected
option.
Or select "EXIT" and press the (<0.5S)
button to return to the main menu, or select
"BACK" and the (<0.5S) button to return
to the Settings interface.
If no button is pressed within 20 seconds,
the display will automatically return to the
main screen and no data will be saved.
You can press and hold the and
(>1S) button at any time, to return to the
main screen.
7.8.1 “Display setting”
Press the or (<0.5S) button to select
Display Settings, and then briefly press the
(<0.5S) button to access the following
selections.
7.8.1.1 “Unit” Selections in km/Miles
Press the or (<0.5S) button to high-
light “Unit” in the Display settings menu,
and then press the (<0.5S) button to
select. Then with the or button
choose between “Metric” (kilometer) or
“Imperial” (Miles). Once you have chosen
your desired selection, press the (<0.5S)
button to save and exit to the "Display
setting" interface.

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7.8.1.2 “Service” Switching the
notification on and off
Press the or (<0.5S) button to high-
light “Service” in the Display settings menu,
and then press (<0.5S) to select. Then
with the or button choose between
“ON” or “OFF”. Once you have chosen your
desired selection, press the (<0.5S) but-
ton to save and exit to the "Display setting"
interface.
7.8.1.3 “Brightness” Display brightness
Press the or (<0.5S) button to high-
light “Brightness” in the Display settings
menu. Then press (<0.5S) to select. Then
with the or button choose between
"100%" / "75%" / "50%" /" 30%"/"10%" .
Once you have chosen your desired selec-
tion, press the (<0.5S) button to save
and exit to the "Display setting" interface.
7.8.1.4 “Auto Off” Set Automatic system
switch off time
Press the or (<0.5S) button to
highlight “Auto Off” in the Display settings
menu, and then press (<0.5S) to select.
Then with the or button choose
between “OFF”, "9"/"8"/"7"/"6"/"5"/"4"/"3"
/"2"/"1", (The numbers are measured in
minutes). Once you have chosen your de-
sired selection, press the (<0.5S) button
to save and exit to the "Display setting"
interface.
7.8.1.5 “MAX PAS” Support level
Press the or (<0.5S) button to
highlight “Max Pass” in the Display settings
menu, and then press (<0.5S) to select.
Then with the or button choose
between “3/5/9” (the amount of support
levels). Once you have chosen your desired
selection, press the (<0.5S) button to
save and exit to the "Display setting"
7.8.1.6 “Power View” Setting the power
indicator
Press the or (<0.5S) button to high-
light “Power View” in the Display settings
menu, and then press (<0.5S) to select.
Then with the or button choose
between “Power” or “Current”. Once you
have chosen your desired selection, press
the (<0.5S) button to save and exit to
the "Display setting" interface.
7.8.1.7 “SOC View” Battery view in volt
percent
Press the or (<0.5S) button to
highlight “SOC View” in the Display settings
menu, and then press (<0.5S) to select.
Then with the or button choose
between “percent” or “voltage “. Once you
have chosen your desired selection, press
the (<0.5S) button to save and exit to
the "Display setting"

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DEALER MANUAL FOR DISPLAY
7.8.1.8 “TRIP Reset” Reset mileage
Press the or (<0.5S) button to highlight “TRIP Reset” in the Display settings menu, and then
press (<0.5S) to select. Then with the or button choose between “YES” or “NO”. Once
you have chosen your desired selection, press the (<0.5S) button to save and exit to the "Display
setting"
7.8.1.9 “AL Sensitivity” Automatic headlight sensitivity
Press the or (<0.5S) button to highlight “AL-Sensetivity” in the Display settings menu, and then
press (<0.5S) to select. Then with the or button choose between "0" / " 1" / " 2"/ "3" /
"4"/ "5"/ "OFF”. Once you have chosen your desired selection , press the (<0.5S) button to save
and exit to the "Display setting"
7.8.1.10“Password”
Press the or (<0.5S) button to choose Password in the menu. Then by briefly pressing
(<0.5S) to enter the password selection. Now again with the or (<0.5S) buttons highlight
“Start Password" and press the (<0.5S) button to confirm. Now again using the or (<0.5S)
Button choose between “ON” or “OFF” and press the (<0.5S) button to confirm.
Now you can input your 4-digit pin code. By using the or (<0.5S) button choose numbers
between "0-9". By briefly pressing the (<0.5S) button you can move on to the next number.
After entering your desired 4-digit code, you must re-enter the 4-digits you chose, to ensure the
code is correct.
After selecting a password, the next time you turn on the system it will ask you to input your
password. Press the or (<0.5S) button to select the numbers, Then press briefly (<0.5S) to
confirm.
After entering the wrong number three times, the system switches off. If you have forgotten the
password, please contact your retailer.
Changing the password:
Press the or (<0.5S) button to choose Password in the menu. Then by briefly pressing
(<0.5S) to enter the password section. Now again with the or (<0.5S) button highlight “Pass-
word set" and press the (<0.5S) button to confirm. Now with the or (<0.5S) buttons and
highlight “Reset Password” and with the (<0.5S) button to confirm.
By entering your old password once, followed by inputting the new password twice, then your
password will be changed.

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Deactivating the password:
To deactivate the password, use the or buttons to get to the menu point “Password” and
press the (<0.5S) button to highlight your selection. Press the or (<0.5S) button until is
shows “OFF”. Then press briefly (<0.5S) to select.
Now enter your password, to deactivate it.
7.8.1.11“Set Clock”
Press the or (<0.5S) Button to highlight “Set Clock” in the Display settings menu. Then briefly
press the (<0.5S) button to confirm selection. Now press the or (<0.5S) button and input
the correct number (time) and press the (<0.5S) button to move to the next number. After enter-
ing the correct time, press the (<0.5S) button to confirm and save.
7.8.1.12“Vibration”
Press the or (<0.5S) Button to highlight “Vibration” in the Display settings menu. Then briefly
press the (<0.5S) button to confirm selection. Then press the or (<0.5S) button to choose
between “ON” or “OFF”. After entering the correct time, press the (<0.5S) button to confirm and
save.

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7.8.2 “Information”
Once the system is turned on, press and hold the
and (>1S) button to access the "SET-
TINGS" menu. Now by pressing the or
(<0.5S) button, Highlight the "information" in the
display Settings, and press the (<0.5S) button
confirm your selection.
Or select the point "Back" by confirming with the
(<0.5S) button to return to the main menu.
7.8.2.1 Wheel Size and Speed Limit
The "Wheel Size” and "Speed Limit” cannot
be changed, this information is here to be
viewed only.
7.8.2.2 Battery Information
Press the or (<0.5S) button to access
the "Battery Info" menu, and then press the
(<0.5S) button to select confirm. Now
press the or (<0.5S) button and select
"Back” or “Next Page". Then press the
(<0.5S) button to confirm, now you can read
the battery information.
Content Explanation
TEMP Current temperature in
degrees (°C)
TotalVolt Voltage (V)
Current Discharge (A)
Res Cap Remaining Capacity
(A/h)
Full Cap Total Capacity (A/h)
RelChargeState Default Loader Status
(%)
AbsChargeState Instant charge (%)
Cycle Times Charging cycles
(number)
Max Uncharge Time
Maximum time in
which no charge was
made (Hr)
Last Uncharge Time
Total Cell Number (individual)
Cell Voltage 1 Cell Voltage 1 (m/V)
Cell Voltage 2 Cell Voltage 2 (m/V)
Cell Voltage n Cell Voltage n (m/V)
HW Hardware Version
SW Software Version
NOTE: If no data is detected, "--" is displayed.

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7.8.2.3 Controller Information
Press the or (<0.5S) button and select
"CTRL Info", and then press the (<0.5S)
button to confirm. Now you can read the
controller information. To Exit press the
(<0.5S) button, or select “Back” to return to
the information interface.
7.8.2.4 Display Information
Press the or (<0.5S) button and select
"Display Info", then press the (<0.5S)
button to read the software and hardware
data in the display. To Exit press the
(<0.5S) button, or select “Back” to return to
the information interface.
7.8.2.5 Torque Information
Press the or (<0.5S) button and select
“Torque info”, then press the (<0.5S)
button to read the software and hardware
data in the display. To Exit press the
(<0.5S) button, or select “Back” to return to
the information interface.
7.8.2.6 Error Code
Press the or (<0.5S) button and select
“Error Code”, and then press the (<0.5S)
button to confirm. It shows error informa-
tion for the last ten errors of the pedelec.
Error code "00"means that there is no error.
To Exit press the (<0.5S) button, or
select “Back” to return to the information
interface.

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7.9 ERROR CODE DEFINITION
The HMI can show the faults of Pedelec. When a fault is detected, the icon will be indicated and one of the
following error codes will be indicated too.
Note: Please read carefully the description of the error code. When the error code appears, please first restart the
system. If the problem is not eliminated, please contact your dealer or technical personnel.
Error Declaration Troubleshooting
04 The throttle is not back in its
correct position.
Check the connector from the throttle is correctly
connected. If this does not solve the problem, please
change the throttle.
05 The throttle has fault.
1. Check the connector and cable of the throttle are
not damaged and correctly connected.
2. Disconnect and reconnect the throttle, if still no
function please change the throttle.
07 Overvoltage protection
1. Remove and re-Insert the battery to see if it
resolves the problem.
2. Using the BESST tool update the controller.
3. Change the battery to resolve the problem.
08 Error with the hall sensor signal
inside the motor
1. Check all connectors from the motor are correctly
connected.
2. If the problem still occurs, please change the
motor.
09 Error with the Engine phase’s Please change the motor.
10
The temperature inside the en-
gine has reached its maximum
protection value
1. Turn off the system and allow the Pedelec to cool
down.
2. If the problem still occurs, please change the
motor.
11 The temperature sensor inside
the motor has an error Please change the motor.
12 Error with the current sensor in
the controller Please change the controller or contact your supplier.

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Error Declaration Troubleshooting
13 Error with the temperature
sensor inside of the battery
1. Check all connectors from the battery are correctly
connected to the motor.
2. If the problem still occurs, please change the
Battery.
14
The protection temperature
inside the controller has reached
its maximum protection value
1. Allow the pedelec to cool down and restart the
system.
2. If the problem still occurs, please change the
controller or contact your supplier.
15 Error with the temperature
sensor inside the controller
1. Allow the pedelec to cool down and restart the
system.
2. If the problem still occurs, Please change the con-
troller or contact your supplier.
21 Speed sensor Error
1. Restart the system
2. Check that the magnet attached to the spoke is
aligned with the speed sensor and that the distance
is between 10 mm and 20 mm.
3. Check that the speed sensor connector is connect-
ed correctly.
4. Connect the pedelec to BESST, to see if there is a
signal from the speed sensor.
5. Using the BESST Tool- update the controller to see
if it resolves the problem.
6. Change the speed sensor to see if this eliminates
the problem. If the problem still occurs, please
change the controller or contact your supplier.
25 Torque signal Error
1. Check that all connections are connected correctly.
2. Please connect the pedelec to the BESST system to
see if torque can be read by the BESST tool.
3. Using the BESST Tool update the controller to see
if it resolves the problem, if not please change the
torque sensor or contact your supplier.

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Error Declaration Troubleshooting
26 Speed signal of the torque
sensor has an error
1. Check that all connections are connected correctly.
2. Please connect the pedelec to the BESST system to
see if speed signal can be read by the BESST tool.
3. Change the Display to see if the problem is solved.
4. Using the BESST Tool update the controller to see
if it resolves the problem, if not please change the
torque sensor or contact your supplier.
27 Overcurrent from controller
Using the BESST tool update the controller. If the
problem still occurs, please change the controller or
contact your supplier.
30 Communication problem
1. Check all connections on the pedelec are correctly
connected.
2. Using the BESST Tool run a diagnostics test, to see
if it can pinpoint the problem.
3. Change the display to see if the problem is solved.
4. Change the EB-BUS cable to see if it resolves the
problem.
5. Using the BESST tool, re-update the controller
software. If the problem still occurs please change
the controller or contact your supplier.
33 Brake signal has an error
(If brake sensors are fitted)
1. Check all connectors are correctly connected on
the brakes.
2. Change the brakes to see if the problem is solved.
If problem continues Please change the controller or
contact your supplier.
35 Detection circuit for 15V has
an error
Using the BESST tool update the controller to see if
this resolves the problem. If not, please change the
controller or contact your supplier.
36 Detection circuit on the keypad
has an error
Using the BESST tool update the controller to see if
this resolves the problem. If not, please change the
controller or contact your supplier.

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Error Declaration Troubleshooting
37 WDT circuit is faulty
Using the BESST tool update the controller to see if
this resolves the problem. If not, please change the
controller or contact your supplier.
41 Total voltage from the battery is
too high Please change the battery.
42 Total voltage from the battery is
too low
Please Charge the battery. If the problem still occurs,
please change the battery.
43 Total power from the battery
cells is too high Please change the battery.
44 Voltage of the single cell is too
high Please change the battery.
45 Temperature from the battery is
too high
Please let the pedelec cool down.
If problem still occurs, please change the battery.
46 The temperature of the battery
is too low
Please bring the battery to room temperature. If the
problem still occurs, please change the battery.
47 SOC of the battery is too high Please change the battery.
48 SOC of the battery is too low Please change the battery.
61 Switching detection defect 1. Check the gear shifter is not jammed.
2. Please change the gear shifter.
62 Electronic derailleur cannot
release. Please change the derailleur.
71 Electronic lock is jammed
1. Using the BESST tool update the Display to see if it
resolves the problem.
2. Change the display if the problem still occurs,
please change the electronic lock.
81 Bluetooth module has an error
Using the BESST tool, re-update the software onto
the display to see if it resolves the problem.
If not, Please change the display.