Engwe BC281 E-bike Display User Manual
Model: BC281 (DTK5) | Version: V1.0
Product Description and Specifications
This section provides an overview of the Engwe BC281 e-bike display and its components.
BC281 Display:
Image of the Engwe BC281 e-bike display mounted on handlebars, showing current speed (20.6 km/h), trip distance (2048.9 km), and assist level (3).
DTK5 Remote:
Image of the DTK5 remote control unit.
Parts Description
Diagrams showing the dimensions of the BC281 display unit. Overall dimensions are approximately 86.00mm (height) x 59.00mm (width). The screen area is approximately 55.60mm (width) x 48.87mm (height). Side view shows a depth of approximately 13.80mm. Bottom view shows a depth of approximately 50.98mm and a width of 55.60mm, with mounting points indicated.
Function Introduction
Diagrams showing the dimensions of the DTK5 remote control. Top view shows dimensions of approximately 46.64mm x 31.98mm. Side view shows a diameter of approximately 22mm for handlebar mounting.
Features
The BC281 display supports common riding parameters and statistical results, along with several useful functions:
- Real-time speed, Max speed, Average speed
- Real-time motor power
- Battery indicator
- Assistant level
- Odometer, trip distance
- Trip time
- Calorie burnt
- Light indicator
- Metric (km/h) / Imperial (mph) switching
- Error codes indicator
- Auto headlights, Brightness adjustment, automatic backlight
- Auto Power-off
- USB Port (5V/500mA)
Additionally, the Bluetooth version supports:
- APP connection
- Data synchronization
- Riding ranking
- Riding track recording
Buttons Functions
| Button | Name | Functions |
|---|---|---|
| [Power] | [Power] | 1. Power on/off 2. Setting confirmation |
| [+] | [+] | 1. Parameter adjustment 2. Menu operation |
| [-] | [-] | 1. Parameter adjustment 2. Push mode on/off 3. Menu operation |
| [i] | [i] | Menu operation |
Operation
Power on/off
Long press the [Power] button to power on. The boot interface will be shown for about 1.5 seconds, followed by the riding interface.
Image of the BC281 display showing a boot screen with '? 100%' battery indicator, followed by the main riding interface displaying '0.0 KM/H' speed, '0.0 KM' trip distance, and 'ASSIST 0' level.
In any interface, long press the [Power] button. The shutdown interface will be shown for about 2 seconds before powering off.
Image of the BC281 display showing a shutdown sequence with '? 100%' battery indicator, followed by the main riding interface displaying '0.0 KM/H' speed, '0.0 KM' trip distance, and 'ASSIST 0' level.
Riding Interface
The BC281 provides various styles of riding interface, which can be switched by clicking the [i] button.
1. Simple Mode
Image of the BC281 display in Simple Mode. Shows '? 100%' battery indicator, a light indicator icon, 'SPEED 0.0 KM/H', 'ASSIST 0', and 'TRIP DIST. 0.0 KM'.
2. Sports Mode
Image of the BC281 display in Sports Mode. Shows '? 100%' battery indicator, riding time '00:00:00', 'SPEED 0.0 KM/H', 'ASSIST 0', 'TRIP DIST. 0.0 KM', and 'Calorie burnt 000 KCAL'.
3. Statistical Mode
Image of the BC281 display in Statistical Mode. Shows '? 100%' battery indicator, 'TRIP DIST. 0.0 KM', 'TRIP TIME 0000 h 00 m', 'AVG. SPEED 0.0 KM/H', 'MAX. SPEED 0.0 KM/H', 'CAL. BURNT 0 KCAL', 'TOTAL DIST. 0.0 KM', and 'SPEED 0.0 KM/H'.
Assist Level Switch and Error Code
Assist Level Switch
Click [+] or [-] to switch assist levels. Press and hold the [-] button to enter the push mode, and release to exit.
Error Code
Image of the BC281 display showing an error screen with a warning icon, "FAULT", and the error code "30".
Common error codes are provided below (for reference only, depending on other electrical parts of the e-bike):
KM5S protocol Error Code
| Error Code | Meaning |
|---|---|
| 21 | Current or Mos Error |
| 22 | Throttle Error |
| 23 | Motor Phase Error |
| 24 | Motor Hall Error |
| 25 | Brake Error |
| 26 | Low-voltage protection |
| 30 | Communication Error |
Li2 protocol Error Code
| Error Code | Meaning |
|---|---|
| 02 | Brake Error |
| 06 | Low-voltage protection |
| 07 | Motor Phase Error |
| 08 | Throttle Error |
| 09 | Current or Mos Error |
| 14 | Motor Hall Error |
| 30 | Communication Error |
User Menu
To enter the user menu, please long press the [i] button for 2 seconds on the riding interface when the e-bike is static (speed is 0).
Image of the BC281 display showing the "Menu" screen with options: "Back <", "Clear Data", "Setup", "System info.", "Connect to APP".
To ensure user safety, the menu can only be accessed when static. In this interface, you can switch submenus by clicking the [+] or [-] button, and enter a submenu by clicking the [i] button.
1. Clear Data
Image of the BC281 display showing the "Clear Data" submenu with options: "Trip Distance", "Factory Reset", "Back <".
(1) Clear Trip Data
Select "Trip Distance" and click the [i] button to enter. You can then clear the trip distance by following the on-screen prompts.
Image of the BC281 display showing the "Clear Trip Dist.?" confirmation screen with "Yes" and "No" options. It also lists that this operation will also clear: Trip Time, Max & Avg Speed, and Calories Burnt.
[Note] The trip time, max speed, average speed, and calories burnt will also be cleared by this operation.
2. Factory Reset
Select "Factory Reset" and click the [i] button to enter. You can reset the parameters.
Image of the BC281 display showing the "Factory Reset?" confirmation screen with "Yes" and "No" options. A warning states: "All Data Will Be Cleared" and "All Settings Revert To Default".
3. Setup
Image of the BC281 display showing the "Setup" menu with options: "Auto Headlight", "Set Unit", "Set Brightness", "Auto Power-Off", "Back <".
(1) Auto Headlight
Select "Auto Headlight" and click the [i] button to enter the submenu. You can enable or disable the automatic headlight function.
Image of the BC281 display showing the "Auto Headlight" setting screen with "Yes" and "No" options.
(2) Set Unit
Select "Set Unit" and click the [i] button to enter the submenu. You can select the unit.
Image of the BC281 display showing the "Set Unit" screen with options: "Metric - Km" and "Imperial - Mile".
(3) Set Brightness
Select "Set Brightness" and click the [i] button to enter the submenu. You can use the [+] or [-] button to adjust the backlight brightness level in the range of 0-5.
Image of the BC281 display showing the "Set Brightness" screen with '+' and '-' buttons, and '5' indicating the current level, with 'i: SET' to confirm.
(4) Set Auto Power-Off
Select "Auto Power-Off" and click the [i] button to enter the submenu. You can use the [+] or [-] button to adjust the automatically power off time in the range of 0-99, where 0 means not to automatically power off.
Image of the BC281 display showing the "Auto Power-Off" screen with '+' and '-' buttons, and '10 min' indicating the current setting, with 'i: SET' to confirm.
4. System Info.
Enter "System Info" to view system information.
Image of the BC281 display showing the "System Info" screen with details: "Wheel Size: 29 inch", "Speed Limit: 15 MPH", "HMI Version: 4.1.7", and a "Back <" option.
Attentions
- Be sure to power off first before connecting and disconnecting the cable, or the display will be totally damaged.
- When fixing the display to the e-bike, please ensure that the torque of the screwdriver is about 0.2Nm (DO NOT EXCEED 0.6Nm), or it will cause damage to the handle.
- Do not put the display into water.
- The display can be wiped with wet and soft cloth, but DO NOT use any chemical liquid or spray on the display.
- Please abide by local laws and regulations when scrapping, discarding, or recycling in an environmentally friendly way, and do not discard the instrument or any accessories as resident waste.
- The damage and failure of the instrument caused by improper installation or use are not covered by the after-sale warranty.
- For more information and support, please contact service@engwe-bikes.com.
