DEALER MANUAL FOR DISPLAY

7 DEALER MANUAL FOR
DP E171.CAN

CONTENT
7.1 Important Notice2

7.2 Introduction of Display

2

7.7 Normal Operation
7.7.1 	Switching the System ON/OFF

55

7.3 Product Description

3

7.7.2 	Selection of Support Levels

5

7.3.1 	Specifications3

7.7.3 	Headlights / backlighting

5

7.3.2 	Functional Overview

3

7.7.4 	Battery Capacity Indication

5

7.4 Display Installation

3

7.7.5 Bluetooth Function

5

7.5 Display Information

4

7.8 Error Code Definition

6

7.6 Key Definition

4  BF-DM-C-DP E171-EN November 20191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 E171.CAN• The label marking is as follow:

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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BF-DM-C-DP E171-EN November 2019  

7.3 PRODUCT DESCRIPTION• Battery capacity indicator• Operating temperature: -20℃~45℃• Switch on and off• Storage temperature: -20℃~60℃• Indication and selection of support level• Waterproof: IPX5

• Control of lighting system• Bearing humidity: 30%-70% RH• Indication for error messages

7.4 DISPLAY INSTALLATION
1.

After the bracket is welded to the bicycle
frame, the key unit can be fixed on the keybase by M4*12 cross recessed countersunk
screws. Then attach the aluminum label.

Please keep the surface of key unit clean
and dry. After attaching the label, pleaseapply a certain of pressure to make it fit.

  BF-DM-C-DP E171-EN November 2019

3

2.

Assemble the main body of display withcabling through customer's bicycle tube.

3.

Dock the DP’s male connector “h” with
EB-BUS’s female connector “H” as indicated.

DEALER MANUAL FOR DISPLAY

7.3.2 Functional Overview

7.3.1 Specifications

7.5 DISPLAY INFORMATION• Display of Support Level
It shows the current support level of 1-3.
• Display of Battery Capacity
The RGB light indicates the current batterycapacity. Under the state of support level, if
there is no operation within 5s, the screen
will switch to display the battery capacity.

The display area is indicated by RGB lights,including the support level, battery capacityand error indication.

• Display of Error CodeThe RGB light flashes at a frequency of 1Hz.

7.6 KEY DEFINITION
DP E171.CAN has a single button, which achieves to power on and off the machine, select thesupport levels, and switch on and off the headlight.

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BF-DM-C-DP E171-EN November 2019  

7.7 NORMAL OPERATION
7.7.3 Headlights / backlighting

Press and hold(>2S) on the display toturn on the system.

ON: Double click
when the light is off,
and the controller will turn on the lights.

Press and holdthe system.

(>2S) again to turn off

OFF: Double click
when the light is on,
and the controller will turn off the light.

In the off state, the leakage current is lessthan 1uA.

(After turning on the headlight, the brightness of DP will decrease, and vice versa.)

7.7.4 Battery Capacity Indication
Capacity Range

Color

40% < C ≤ 100%Green

20% ≤ C ≤ 40%

Yellow

5% ≤ C < 20%Red<5%Flashing Red

The current battery capacity is displayed bydefault upon powering on. Press(<0.5S)
to display the current level, and short press
again to switch the level.

7.7.2 Selection of Support Levels
When the display is turned on, press(<0.5S) to switch the support levels andchange the output power of the motor. Thedefault level is level 1-3. The lowest level is1, the highest level is 3.

Under the state of support level, if there
is no operation within 5s, the screen willswitch to display the battery capacity.

7.7.5 Bluetooth Function
DP E171.CAN can work with App (BAFANGGO) via Bluetooth, and all information can bedisplayed on the smart phone, such as bicycles, battery, sensor, controller and display.
The default name of Bluetooth is DP E171.
CAN.

level 1- Cyan; level 2- Blue; level 3- Purple  BF-DM-C-DP E171-EN November 2019

5

DEALER MANUAL FOR DISPLAY

7.7.1 Switching the System ON/OFF7.8 ERROR CODE DEFINITION
The display can show the errors of a pedelec. When the fault is detected, the RGB lights will flash at a frequencyof 1 Hz. The flashing blue light indicates the tens digit of the error code, while the flashing cyan light indicatesthe unit digit. For example:Error code 25 :The blue light flickers for 2 times, and the cyan light flickers for 5 times.
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

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 correctlyconnected. If this does not solve the problem, pleasechange the throttle.
1. Remove and re-Insert the battery to see if it
resolves the problem.

Overvoltage protection

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 inthe controller

Please change the controller or contact your supplier.

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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BF-DM-C-DP E171-EN November 2019  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.

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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  BF-DM-C-DP E171-EN November 2019

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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DEALER MANUAL FOR DISPLAY

Error

Error

Declaration

Troubleshooting
1. Check that all connections are connected correctly.

26

2. Please connect the pedelec to the BESST system tosee if speed signal can be read by the BESST tool.

Speed signal of the torquesensor has an error

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

Using the BESST tool update the controller. If theproblem still occurs, please change the controller orcontact your supplier.

Overcurrent from controller

1. Check all connections on the pedelec are correctlyconnected.
2. Using the BESST Tool run a diagnostics test, to see
if it can pinpoint the problem.
30

3. Change the display to see if the problem is solved.

Communication problem

4. Change the EB-BUS cable to see if it resolves theproblem.
5. Using the BESST tool, re-update the controller
software. If the problem still occurs please changethe controller or contact your supplier.

33

1. Check all connectors are correctly connected on
the brakes.

Brake signal has an error

2. Change the brakes to see if the problem is solved.

(If brake sensors are fitted)

If problem continues Please change the controller orcontact your supplier.

35

Detection circuit for 15V hasan 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.

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BF-DM-C-DP E171-EN November 2019  Declaration

Troubleshooting

37

Controller 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.

38

Sensor WDT circuit is faulty

Using the BESST tool update the sensor to see if
this resolves the problem. If not, please change thesensor 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 theproblem 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.

  BF-DM-C-DP E171-EN November 20199DEALER MANUAL FOR DISPLAY

Error