VeloFox DM 02-RM05 Colored IPS Screen Display Installation Guide

VeloFox DM 02-RM05 Colored IPS Screen Display

Product Information

• Specifications
  • Product Name: Colored IPS Screen Display
  • Product Model: DM 02-RM05
• Product name and model
  • IPS display of electric power assist bikes
  • Product model DM02
• DM02 includes two versions:
  • DM02_U: UART communication version
  • DM02_C: CAN BUS communication version
  • All DM02 products are available to add Bluetooth function in its hardware.
• Product introduction
  • Tempered glass screen with bevelled edge
  • 2.0 inch HD high brightness full viewing angles IPS LCD
  • Special screen fitting technology, great sunlight and outdoor readability
  • Independent operating buttons with ergonomic design
  • IP65 waterproof level, excellent for outdoor use
  • Built-in Bluetooth function, compatible with CAN-BUS and UART communication
  • Service Tool function for fast firmware upgrade, parameter setting, and easy maintenance
• Range of application
  • Suitable for all E-bikes that comply with EN15194 standard
• Appearance and size
  • The shell material of DM02 is PC+ABS
  • The screen is made of imported tempered glass with a beveled edge
  • This product is suitable to be installed on a horizontal handlebar tube size of 22.2mm, 25.4mm, and 31.8mm

Product Usage Instructions

• Installation
  • Choose the appropriate horizontal handlebar tube size (22.2mm, 25.4mm, or 31.8mm) for installation.
  • Ensure that the DM02 display is facing the correct direction for easy readability.
  • Securely attach the DM02 display to the handlebar tube using the provided holder.
  • Make sure the installation is firm and stable before using the product.
• Functionality
  • The DM02 display offers various functions and features for electric power assist bikes:
  • Viewing and monitoring electric power assist information
• Adjusting parameters and settings
  • Upgrading firmware
  • Bluetooth connectivity for additional features
  • Operation
  • Press the independent operating buttons to navigate through the menu options.
  • Select the desired function or setting by pressing the corresponding button.
  • Follow the on-screen instructions to make adjustments or access different features.
  • Refer to the user manual for specific instructions on each function or setting.
• FAQ
  • Is the DM02 display compatible with all E-bikes?
  • No, the DM02 display is suitable for E-bikes that comply with the EN15194 standard.
  • Can I add Bluetooth functionality to the DM02 display?
  • Yes, all DM02 products are available to add Bluetooth function in its hardware.
  • How do I upgrade the firmware of the DM02 display?
  • Use the Service Tool function to perform fast firmware upgrades. Refer to the user manual for detailed instructions.

Display Functionality Introduction

DM02 Display Functionality Introduction

• Product Name: Colored IPS Screen Display
• Product Model: DM 02-RM05

Modification History

is added and the advanced settings are deleted

Declaration

• DM02 functional definition is a function definition description of the standard-version DM02 display produced by Velofox , and is part of the technical documentation.
• All of Velofox’s display products are customized according to the electric system’s requirements.
• While this document is a reference for complete function definitions, operation instructions, and error codes, any configuration difference between your display and the standard DM02 is possible, due to various technical requirements in different ebike applications.
• Please consult your drive system supplier for additional function requirements and data display.
• If you have any questions about DM02 functional definition, please consult our sales or technical support team.
• Our company (VeloFox ®) reserves all the rights to interpret and explain DM02 functional definitions.
• Hangzhou Velofox Intelligent Technology Co., Ltd

Product Introduction

1. Product name and model
   • IPS display of electric power assist bikes
   • Product model DM02
   • DM02 includes two versions of UART communication and CAN BUS communication
   • DM02_U corresponds to the UART communication version
   • DM02_C corresponds to the CAN BUS communication version.
   • All DM02 products are available to add Bluetooth function in its hardware.
2. Product introduction
   • Tempered glass screen with bevelled edge
   • 2.0 inch HD high brightness full viewing angles IPS LCD
   • Special screen fitting technology, great sunlight and outdoor readability
   • Independent operating buttons with ergonomic design
   • IP65 waterproof level, excellent for outdoor use
   • Built-in Bluetooth function, compatible with CAN-BUS and UART communication
   • Service Tool function for fast firmware upgrade, parameter setting, and easy maintenance
3. Range of application
   • Suitable for all E-bikes that comply with EN15194 standard
4. Appearance and size
   • The shell material of DM02 is PC+ABS the screen is made of imported tempered glass with a beveled edge. This product is suitable to be installed on a horizontal handlebar tube size ofφφ22.2mm，φ φ25.4mm and φφ31.8mm.
5. Display coding rules
   • DM02-C01M120140001
   • VO1. XXX. XX-24V2526XX

B. Product manual

1. Specifications
2. Power supply DC 24V/36V/48V
3. Rated current 23 mA
4. Shutdown leakage current：： <1uA
5. Screen specification 2.0 inch IPS LCD display, resolution 320*480
6. Communication method UART/ CAN-BUS
7. Operating temperature：：- 10 C ~ 60 C
8. Storage temperature：：- 20 C ~ 70 C
9. Waterproof level IP65
10. Function overview
11. Left-side independent buttons with ergonomic design
12. Customization of boot interface and UI
13. Display key riding data, speed, mileage, battery info, etc.
14. Statistical function for power assist mode
15. Walk assist function
16. Auto headlight on/off function
17. Error code indication
18. Real-Time Clock for a current time indication
19. Range and battery indication（（*available if BMS provides necessary info
20. Percentage Analysis of total power output shared between engine and rider (*available if torque sensor provides necessary info)
21. Health info statistics（（*available if connected to an external bluetooth device
22. Include Bluetooth hardware, for wireless connection to a smartphone to achieve GPS function
23. Maintenance service reminders and setting
24. Parameters setting and advanced setting
25. Installation
26. Display locking clip includes two handlebar sizes, size A Φ31.8mm, and size B Φ25.4mm. Please include the requested locking clip size in the purchase order. Installing DM02 display: Adjust the display to a position easy to operate, using M3*10 hex set to screws and tighten. Tightening torque: 0.8N.m

  *  **Note:** Damage caused by excessive torque is not covered by the warranty.
2. Place the button on the left side of the horizontal tube, using an M3*10 hex set to screws and tighten. For more button models, please refer to the Velofox product catalogue
3. Connect the 5-pin plug to the docking plug of the controller

Interface

Boot logo interface is displayed for 3 seconds after the display is turned on. When the communication connection is established, display enters the main interface which shows information obtained from the controller. ( All data displayed is following communication protocol provided by the customer)

• Animated boot interface available for customization

Basic interface and operation

1. All RM series buttons are compatible with DM02 series displays, the power-on button is located on the top side of the display.
2. Standard Outlet is a board end connector, which is convenient for after-sales maintenance and replacement.
3. 2.0 inch HD high brightness IPS LCD screen meets the need for customization of the boot interface and UI interface

Function interface introduction
Boot interface and basic function interface

Boot logo interface is displayed for 3 seconds after display is turned on. When the communication connection is established, display enters the main interface, showing real-time information stored in the controller and battery BMS according to the communication protocol. (Battery indicator will not show battery percentage if BMS info is not available)

Other function interfaces

Function interface I

Function interface mainly displays real-time power values

Function interface

• Function interface mainly display speed information, including average speed, maximum speed, and TRIP info which is subtotal mileages as shown on basic interface.
• Speed display value has 3 digits, maximum value is 99.9KM/H, including one digit after the decimal point. Subtotal mileage TRIP value has 4 digits, including one digit after the decimal point.
• After 9999.9 KM is exceeded, the decimal point is not indicated, and a 5-digit mileage value is displayed directly, with a maximum value of 99999km.
• After the maximum value is exceeded, the value is shown as the actual mileage value deducted by 100,000.
• Data on function interface I can be cleared by a button operation.

Function interface

• The function interface mainly displays battery information, including voltage, capacity percentage.
• Accumulated charging cycles are provided by battery BMS, if it is not available from BMS, display shows —- for charging cycles.
• The Range is calculated by controller using battery BMS capacity info.

Function interface

• Function interface displays time usage analysis under each PAS level, data are calculated by the display according to the actual riding state, shown as a percentage.
• To clear the time usage data under PAS level, use button operation.

Function interface

• The function interface displays power output analysis, including the average power output by the motor, the maximun output by the motor.
• Power output by the motor will follow data provided by the controller, if requested info is not available from a controller, the display will calculate using collected voltage and electric currents data.
• Power output shared between the rider and motor requires the controller’s support
• Under the basic function interface, press the “+” key and “-” key together to change function interface. If no key operation is performed within 5 seconds on any function screen, the system switches to the basic function screen.

Walk assist interface

• Long press “-” button to enter walk assist mode, interface shown as below

Maintenance reminder interface

• The display can be set with regular maintenance reminders, and when reaches the set mileage value, display will notify the user through the maintenance reminders.
• After the maintenance reminder mileage is reached, display will show a notification interface every time being turned on to prompt the user to carry out daily vehicle maintenance.
• Notification interface can be cancelled by short press “+”and “-” button at same time manually.
• After connecting to service tool box, the maintenance reminder can be reset through after-sales diagnostic tool, and meanwhile, the maintenance record will be registered.

Error code interface

• When the display receives the error info returned by controller, it will show a detailed error code on interface, indicating relevant electrical system fault information.
• The error code will be displayed numerically in the speed display area.

Setting interface

• Within 10s after turning on display, long press “+”and “-” button together to enter the setting interface, short press “+”button、 “-” button to switch between setting interfaces. Short press “+”button、 “-”button to enter parameter picking state.
• For more setting operation illustration, please refer to part 7

Button definition

Button name

• Power button: Turn on/off the display
• Adjust button and ““-””: Short press “+” or “-” to adjust the assit level, and long or short press and together to carry out the function operation (see 5.2 Definition of button operation).

Definition of button operation

released, the function is activated accordingly
Long press

Combination of short press

Combination of long    press

| Press the button and hold, when the hold time exceeds the setting time(generally 1 second), the function is activated accordingly.
Combined short press means pressing one key first for pre-trigger, pressing another button at the same time without releasing the current button, and releasing two button at the same time when the last key is pressed for the set

time (usually within 1S) to trigger the corresponding function.

Combined long press means that two buttons are held down at the same time. When the button is held down for longer than the set long press time (usually

1S), the corresponding function is triggered.

Basic function operation

Turn on/off the display

• To turn on, long press the button until the boot logo interface appears and shortly enters the basic interface.
• To turn off, long press  button until the display is turned off. If the rider does not perform any operation on the display within the set shutdown time, while speed is 0, and current is less than 1A, then the display will be turned off automatically.
• Set shutdown time is self-defined by user.

Assist level switch

• During normal working state short press ““+”、 buttons to switch assist level, and change assist mode

Power assist display modes as shown below:

• Digital gear: 0-5 levels
• Short press““+”、 buttons to switch assist level. Switching level is not cycled, that is, after reaching 5th level, short press “-” button to return to off level. It’s the same when adjusting up.

Information switch

In a power-on state, short press and buttons at same time to switch alternately from basic interface, function interfaces. In a normal riding state, if the bike speed is greater than 0, and the display is not in the basic interface, then basic interface will be automatically returned, if the user don’t operate the “+” and “-” button together for more than 5s.

The switching process of each interface, as shown below:

Maintenance reminder

• Display supports maintenance reminder function, when this function is enabled, the display will remind the user to give ebike a maintenance check once the total mileage reached a preset value.
• Maintenance reminder function can be turned on/off in the setting interface and is turned on by default.
• The factory default reminding mileage is 5000km which is not modifiable by users, that is, display will remind the user to give a maintenance check once the total mileage reached 5000km.

Walk assist function

• When speed is 0, long press “-” button to enter walk assist mode, motor outputs power according to the set speed and control the actual walk speed, display shows the walk assist icon and the real-time speed.
• Release “-” button or any other button to exit walk assist mode, the motor is turned off, and the display gets back to the basic interface. Walk assist interface, shown as below:

Battery power indicator and assist power output

Battery power information is divided into battery bar indication and remaining percentage indication. When battery power is normal, battery capacity is divided into 5 bars. Before communication is established, the battery percentage is no  displayed, and the power bar is full and blinks at 2Hz. After battery info is acquired, power bar will stop blinking, and displays the power percentage. If communication is not successful within 3s, it will stop blinking and no power percentage will be displayed. After battery capacity is lower than 5% or the voltage is lower than low voltage value, display will enter the low-voltage mode. In this mode battery level showed level 0 and border blink at 1Hz, with no power output from the motor, and disabled assist level switch. Power assist level is displayed as OFF or 0. To get out of low- voltage mode, reset, and increase the voltage above low-voltage value and battery capacity above 5%. Percentage of battery power C and power level table

（Battery % info is required from BMS or controller:

Remarks about battery indicator：

When there is a battery communication error

1. Display will estimate the power according to the voltage and show the battery level accordingly
2. No battery percentage information will be shown
3. Range information will not be displayed
4. If the voltage is lower than the low-voltage value, the effect of the current on voltage needs to be considered when converting to a voltage at 0 current

Setting function

• Display provides specific parameter setting functions.
• The optional items of setting function will be deleted according to different market and product standards.
• The following is the complete parameter setting, information reading function description under the default state of display.
• Please contact our sales and technical support team for confirmation in case of any discrepancies.
• Within 10s after turning on display, long press and buttons at same time to enter setting interface, short press ““+”、 buttons to switch between setting interfaces.
• In any setting interfaces, short press and buttons at same time to enter parameter editing state, the blue mark indicates chosen parameter, and selected option or value will be indicated by a white font with a grey background.
• Short press““+”、 buttons to edit parameters. Long press and buttons at same time to confirm parameter selection. Long press and buttons at same time again to exit and return to previous page.
• Selected option or value will be indicated by a white font with grey background as shown below:
• In any setting interfaces, short press and buttons at same time to enter the next level menu, and long press and buttons at same time to return to the previous level menu.
• First level parameter setting interface, and the description of each parameter interface is as follow:

Data clearance

Data clearance is aimed at the removal of data information such as subtotal mileage TRIP, average speed, and maximum speed. 10s after display is turned on when display is at function interface, long press and buttons at same time to show data clearance window, and short press ““+”、 buttons to select accordingly. To remove the pop-up clearance window, long press and buttons at same time or remain no operation for 30s.

After clearance, the subtotal mileage TRIP is 0, average speed, and max speed is 0. ODO information can’t be cleaned manually on the display, professional service tools are required.

Error information

Display can warn bike faults. When faults are detected, error code will be shown on the interface and blink at 1Hz. When error code is shown, button functions will not be affected, meaning interfaces can be shown normally by pressing buttons. If no button operation after 5s, the display will return to the error code interface. Error code interface as shown below:

Bafang protocol’s error code information table

turned back

“05” shown at speed| throttle failure| Check throttle
“07” shown at speed| overvoltage protection| Check battery voltage
“08” shown at speed| failure of motor’s hall signal wire| Check motor
“09” shown at speed| failure of motor’s phase wire| Check motor
“11” shown at speed| failure of the motor’s temperature sensor| Check controller
“12” shown at speed| failure of the current sensor| Check controller
“13” shown at speed| failure of the temperature of the battery| Check battery
“14” shown at speed| The controller temperature is too high, and reaches the protection point| Check motor
“21” shown at speed| failure of the speed sensor| Check the install position of the speed sensor
“22” shown at speed| Failure of BMS communication| Change battery
“30” shown at speed| communication failure| Check the connector to the controller

（* Different communication protocols are different in error code system. If an error code appears, please communicate with our sales and technical support team to verify and confirm)

Wire definition

Standard wires definition:
The standard outlet of the display is defined by Velofox according to the conventional application, and the standard outlet needs to match the corresponding conversion harness. Our company has corresponding standard settings for the conversion line length and interface standards. If the standard settings cannot meet your requirements, a customized conversion harness is required.

The standard outlet in a sample is shown in the figure below:

Table 1 Standard wire definition

Package specifications

C Package specifications

Standard delivery, in double corrugated box packaging. The inner layer is a double corrugated septum plus EPE foam product bag. Outer box size 580390168mm (LWH)

D Note

• In the use of the display, pay attention to security, do not plug the display in and out when the power is on
• Try to avoid exposure to harsh environments like heavy rain, heavy snow, and strong sunlight
• When the display can’t be used normally, it should be sent for repair as soon as possible.

Hangzhou VeloFox Intelligent Technology Co, Ltd.

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