7 DEALER MANUAL FOR
DP C221.CAN
DEALER MANUAL FOR DISPLAYCONTENT
7.1 Important Notice2

7.7.2 	Selection of Support Levels

6

7.2 Introduction of Display2

7.7.3 	Selection mode

6

7.3 Product Description

3

7.7.4 	Headlights / backlighting

7

7.3.1 	Specifications

3

7.7.5 	Walk Assistance7

7.3.2 	Functions Overview

3

7.7.6 SERVICE

8

7.4 Display Installation

4

7.5 Display

5

7.6 Key Definition

5

7.8.1 	"Display Setting"

7.7 Normal Operation

6

7.8.2 	"Information"

116

7.9 Error Code Definition

15

7.7.1 	Switching the System ON/OFF  BF-DM-C-DP C221-EN November 2019

7.7.7 	Battery capacity indication

7.8 Settings

1

8

9
9

7.1 IMPORTANT NOTICE• If the error information from the display
cannot be corrected according to the instructions, please contact your retailer.

• Please use this product with care.
• Do not use thinners or other solvents toclean the display. Such substances candamage the surfaces.

• The product is designed to be waterproof. It
is highly recommended to avoid submerging
the display under water.

• Warranty is not included due to wear andnormal use and aging.

• Do not clean the display with a steam jet,high-pressure cleaner or water hose.

7.2 INTRODUCTION OF DISPLAY• Model: DP C221.CAN BUS• The label marking is as follows:• The housing material is ABS and Acrylic.

D P C 2 2 1 C E 1 0 1 0 1 .0

PD 031305
Note: Please keep the QR code label attachedto the display cable. The information from theLabel is used for a later possible software
update.

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7.3 PRODUCT DESCRIPTION• Speed display (including top speed and average speed, switching between km and miles)• Operating temperature: -20℃~45℃• Storage temperature: -20℃~50℃• Battery capacity indicator• Waterproof: IPX5

• Lighting control• Storage room Humidity: 30%-70% RH• Brightness setting for backlight• Walk assistance• Indication of performance support• Motor output power indicator• Time display for single journeys• Kilometer stand (including single-trip distance, total distance and remaining distance)• 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)• Information View (battery, controller, HMI
and sensor)• Error messages view
• Bluetooth function  BF-DM-C-DP C221-EN November 20193

DEALER MANUAL FOR DISPLAY

7.3.2 Functional Overview

7.3.1 Specifications

7.4 DISPLAY INSTALLATION
1.

Remove the holding bracket from thedisplay, and then place the display into
position on the handlebar. (suitable for∮22.2mm handlebar).

2.

Then place the holding bracket on theunderside of the display and tighten it
into position with a M3.0*8 screw. Torquerequirement: 1.0 N.m.

3.

4

Now connect the Display connector to the
EB-Bus connector, ensuring both connectors are kept parallel when pushing firmly
together.

BF-DM-C-DP C221-EN November 2019  

7.5 DISPLAY
32

5

Display of battery capacity in real time.

2

Indicator of support level/walk assistance.

3

The display shows this symbol
the lights are turned on.

4

Indicatior of bluetooth

5

Unit of speed

6

Digital speed display

7

Trip: Daily kilometers (TRIP) - Total kilometers(ODO) - Top speed (MAX) - Average speed(AVG) - Rremaining distance (RANGE) - Energy Consumption (CALORIES) - Output power(POWER)- Travel time (TIME).

67, WhenService: Please see the service section

7.6 KEY DEFINITION

up
down
System On/Off

up
down

  BF-DM-C-DP C221-EN November 2019

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DEALER MANUAL FOR DISPLAY

411

7.7 NORMAL OPERATION
7.7.1 Switching the System ON/OFF
Press and holdoff the system.

(>2S) on the display to turn on the system. Press and hold(>2S) again to turnIf the "automatic shutdown time" is set to 5 minutes (it can be reset with the "Auto Off" function,
See "Auto Off"), the display will automatically be turned off within the desired time when it is not
in operation.If the password function is enabled, you must enter the correct password to use thesystem.

7.7.2 Selection of Support Levels
When the display is turned on, press theorbutton (<0.5S) to switch to the support level, thelowest level is 0, the highest level is 3. When the system is switched on, the support level starts inlevel 1. There is no support at level 0.

7.7.3 Selection mode
Briefly press the

button (<0.5s) to see the different trip modes.

Trip: daily kilometers (TRIP) - total kilometers (ODO) - Maximum speed (MAX) - Average speed (AVG)- Rremaining distance (RANGE) - Energy consumption (CALORIES) - Output power (POWER) - Travel
time (TIME).

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BF-DM-C-DP C221-EN November 2019  

DEALER MANUAL FOR DISPLAY

7.7.4 Headlights / backlighting
Hold thebutton (>2S) to activate the headlight and taillights.

Hold thebutton (>2S) again to turn off the headlight. The brightness of the backlight can be set
in the display settings "Brightness".

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 press and hold down the
button whilst thesymbol is displayed, now the Walk assistance will activate. The symbol
willblink and the pedelec moves approx. 4.5 km/h. After releasing the
button or no button is pressed
within 5S, the motor stops automatically and switches back to level 0.

  BF-DM-C-DP C221-EN November 20197

7.7.6 SERVICE
The display shows "SERVICE" as soon as a certain number of kilometers or battery charges has beenreached. With a mileage of more than 5000 km (or 100 charge cycles), the “SERVICE" function isdisplayed on the display. Every 5000 km the display "SERVICE" is displayed every time. This function
can be set in the display settings.

7.7.7 Battery capacity indicator
The battery capacity is shown in the top left of the display. Each full bar represents a remaining
capacity of the battery in a percentage.
(as shown in the diagram below):
Capacity Range

Indicator

80%-100%
60%-80%40%-60%20%-40%5%-20%
blinking<5%

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BF-DM-C-DP C221-EN November 2019  

7.8 SETTINGS

Or highlight "EXIT" and press the
button (<0.5S) to return to the main menu, or highlight "BACK"
and press (<0.5S) the
button (<0.5S) to return to the Settings interface.

7.8.1 "Display Setting"Press theorbutton (<0.5S) and highlight Display Setting, and then briefly press the(<0.5S) to access the following selections.

button7.8.1.1 "TRIP Reset" Reset mileage
Press theorbutton (<0.5S) to highlight “Trip Reset” in the Display setting menu, and thenpress
button (<0.5S) to select. Then with theorbutton choose between “YES” or “NO”.
Once you have chosen your desired selection, press the
button (<0.5S) to save and exit to the"Display setting".

  BF-DM-C-DP C221-EN November 2019

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DEALER MANUAL FOR DISPLAY

After the display is turned on, press and hold theandbuttons (at the same time) to enter
into the setting menu, By pressing theorbutton (<0.5S), you can highlight and select Display
Setting, Information or Exit. Then press the
button (<0.5S) to confirm your selected option.

7.8.1.2 "Unit" Selections in km/Miles
Press theorbutton (<0.5S) to highlight “Unit” in the Display setting menu, and then press
button (<0.5S) to select. Then with theorbutton choose between “Metric” (kilometer) or“Imperial” (Miles). Once you have chosen your desired selection, press the
button (<0.5S) to saveand exit to the "Display setting".

7.8.1.3 "Brightness" Display brightness
Press theorbutton (<0.5S) to highlight “Brightness” in the Display setting menu, and thenpress
button (<0.5S) to select. Then with theorbutton choose between "100%" / "75%"/ "50%" /" 30%"/"10%". Once you have chosen your desired selection, press the
button (<0.5S)
to save and exit to the "Display setting".

7.8.1.4 "Auto Off" Set Automatic system switch off time
Press theorbutton (<0.5S) to highlight “Auto Off” in the Display setting menu, and then press
button (<0.5S) to select. Then with theorbutton choose between “OFF”, "9"/"8"/"7"/"6"/"5"/ "4"/"3"/"2"/"1", (The numbers are measured in minutes). Once you have chosen your desired
selection, press the
button (<0.5S) to save and exit to the "Display setting".

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BF-DM-C-DP C221-EN November 2019  

7.8.1.5 "Service" Switching the notification on and off

7.8.2 "Information"
Once the display is turned on, press and hold theandbuttons (at the same time) to enter
into the setting menu, press theorbutton (<0.5S) to select “Information”, then press the
button (<0.5S) to confirm and enter into "Information".

7.8.2.1 Wheel Size
Press theorbutton (<0.5S) to highlight “Wheel Size”, then press the
button (<0.5S) to
confirm and view the wheel size. To return, press the
button (<0.5S) to exit back to the "Information".
This information cannot be changed, this is only for information, about the pedelec.

  BF-DM-C-DP C221-EN November 201911

DEALER MANUAL FOR DISPLAY

Press theorbutton (<0.5S) to highlight “Service” in the Display setting menu, and then press
button (<0.5S) to select. Then with theorbutton choose between “NO” or “YES”. Onceyou have chosen your desired selection, press the
button (<0.5S) to save and exit to the "Display
setting".

7.8.2.2 Speed Limit
Press theorbutton (<0.5S) to highlight “Speed Limit”, then press the
button (<0.5S) to
confirm and view the speed limit. To return, press the
button (<0.5S) to exit back to the "Information".
This information cannot be changed, this is only for information, about the pedelec.

7.8.2.3 Battery Information
Press theorbutton (<0.5S) to highlight “Battery Info”, then press theconfirm. Now press theorbutton (<0.5S) to view the contents.
To return, press the

button (<0.5S) tobutton (<0.5S) to exit back to the "Information".

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BF-DM-C-DP C221-EN November 2019  

Code definition

Hardware ver

unit

Code

Code definition

unit

Hardware version

b10

Absolute SOC%

Software ver

Software version

b11

Cycle

times

b01

Current temperature℃b12

Maximum notcharging time

Hour

b04

Total voltage

mV

b13

Recently not charging time

Hour

b06

Average current

mA

d00

Number of battery
cell

b07

Remaining capacity

mAh

d01

Voltage of cell 1

mV

b08

Full charge capacity

mAh

d02

Voltage of cell 2

mV

b09

Relative SOC%

dn

Voltage of cell nmV

NOTE: If no data is detected, "--" is displayed.
7.8.2.4 Controller Information
Press theorbutton (<0.5S) to highlight “Ctrl Info”, then press the
button (<0.5S) to confirm. Now press theorbutton (<0.5S) to view Hardware Version or Software Version.
To return, press the

button (<0.5S) to exit back to the "Information".

  BF-DM-C-DP C221-EN November 201913

DEALER MANUAL FOR DISPLAY

Code7.8.2.5 Display Information
Press theorbutton (<0.5S) to highlight “Display Info”, then press the
button (<0.5S) to
confirm. Now press theorbutton (<0.5S) to view Hardware Version or Software Version.
To return, press the

button (<0.5S) to exit back to the "Information".

7.8.2.6 Torque Information
Press theorbutton (<0.5S) to highlight “Torque Info”, then press the
button (<0.5S) to
confirm. Now press theorbutton (<0.5S) to view Hardware Version or Software Version.
To return, press the

button (<0.5S) to exit back to the "Information".

7.8.2.7 Error CodePress theorbutton (<0.5S) to highlight “Error code”, then press the
button (<0.5S) to
confirm. Now press theorbutton (<0.5S) to view a list of error codes from the pedelec. It canshow information for the last ten errors of the pedelec. The error code "00"means that there is noerror.
To return, press the

button (<0.5S) to exit back to the "Information".

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BF-DM-C-DP C221-EN November 2019  

7.9 ERROR CODE DEFINITION

Note: Please read carefully the description of the error code. When the error code appears, please first restart thesystem. If the problem is not eliminated, please contact your dealer or technical personnel.

Error

Declaration

04

The throttle has fault.

05

The throttle is not back in its
correct position.

07

Overvoltage protection

Troubleshooting
1. Check the connector and cable of the throttle are
not damaged and correctly connected.
2. Disconnect and reconnect the throttle, if still nofunction please change the throttle.
Check the connector from the throttle is correctly
connected. If this does not solve the problem, pleasechange the throttle.
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.
1. Check all connectors from the motor are correctly
connected.

08

Error with the hall sensor signal
inside the motor

09

Error with the Engine phase’s

10

The temperature inside the engine has reached its maximum
protection value

11

The temperature sensor inside
the motor has an error

Please change the motor.

12Error with the current sensor in
the controller

Please change the controller or contact your supplier.

  BF-DM-C-DP C221-EN November 2019

2. If the problem still occurs, please change themotor.
Please change the motor.
1. Turn off the system and allow the Pedelec to cooldown.
2. If the problem still occurs, please change themotor.

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DEALER MANUAL FOR DISPLAY

The HMI can show the faults of Pedelec. When a fault is detected, one of the following error codes will be
indicated too.

Error

Declaration

13

Error with the temperature
sensor inside of the battery

14

The protection temperatureinside the controller has reached
its maximum protection value

15

Error with the temperature
sensor inside the controller

Troubleshooting
1. Check all connectors from the battery are correctly
connected to the motor.
2. If the problem still occurs, please change theBattery.
1. Allow the pedelec to cool down and restart thesystem.
2. If the problem still occurs, please change thecontroller or contact your supplier.
1. Allow the pedelec to cool down and restart thesystem.
2. If the problem still occurs, Please change the controller or contact your supplier.
1. Restart the system
2. Check that the magnet attached to the spoke isaligned with the speed sensor and that the distanceis between 10 mm and 20 mm.
3. Check that the speed sensor connector is connected correctly.

21

Speed sensor Error

4. Connect the pedelec to BESST, to see if there is asignal 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, pleasechange the controller or contact your supplier.
1. Check that all connections are connected correctly.

25

Torque signal Error

2. Please connect the pedelec to the BESST system tosee 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 thetorque sensor or contact your supplier.

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BF-DM-C-DP C221-EN November 2019  Declaration

Troubleshooting
1. Check that all connections are connected correctly.

26

Speed signal of the torquesensor has an error

2. Please connect the pedelec to the BESST system tosee 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 thetorque 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 orcontact your supplier.
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.

30

Communication 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 orcontact 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 thecontroller 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 thecontroller or contact your supplier.

  BF-DM-C-DP C221-EN November 201917

DEALER MANUAL FOR DISPLAY

Error

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 thecontroller 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 highPlease change the battery.

44

Voltage of the single cell is toohighPlease change the battery.

45

Temperature from the battery is
too high

Please let the pedelec cool down.

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 highPlease change the battery.

48

SOC of the battery is too low

Please change the battery.

61

Switching detection defect62

Electronic derailleur cannot
release.

71

Electronic lock is jammed

81

Bluetooth module has an error

If problem still occurs, please change the battery.

1. Check the gear shifter is not jammed.
2. Please change the gear shifter.
Please change the derailleur.
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.
Using the BESST tool, re-update the software onto
the display to see if it resolves the problem.
If not, Please change the display.

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BF-DM-C-DP C221-EN November 2019