VARSTROM VD618 E-Bike Display User Manual

I. Safety Notes

Please take caution when using the display. Do not plug or unplug the display while your E-bike is powered on.

• Avoid clashes or bumps to the display.
• Avoid using in heavy rains, snows, or long exposure to strong sunlight. Do not tear the water-proof film on the surface of the screen, otherwise the water-tight performance of the product may be degraded.
• Do not plug or unplug the display while the system is powered on. Unauthorized adjustment to default settings is not suggested, otherwise normal use of your E-bike cannot be guaranteed.
• When the display product does not work properly, please send it for authorized repair in time.

II. Overview

1. Product Introduction

The VD618 features a high-brightness anti-glare color LCD and a minimalist interface, working as an ideal Human-Machine Interface (HMI) solution for EN15194 electric bikes.

2. Key Features

• CAN Protocol Compatibility: Exclusively designed for Bafang CAN BUS mid-motors (BBS01B, BBS02B, BBS03 series, M200/M625/M325/M225/M400). Not compatible with UART protocol motors.
• Waterproof Design: IP66-rated for durability in various weather conditions.
• USB-C Charging Port: Built-in 5V 1A Type-C port for convenient charging of smartphones and other devices.
• Clear Readout Screen: Bright, high-definition 3.5-inch LCD display visible in sunlight.
• Comprehensive Information Display: Shows battery level (percentage/voltage), odometer (ODO), single-trip distance (TRIP), real-time speed (SPEED), max speed (MAX), average speed (AVG), riding time (TIME), battery voltage (VOL), motor power (Wh), current (CUR), and error codes.
• Adjustable PAS Levels: 0-6 assist levels available.
• Adjustable Brightness: Backlight setting with 1-3 levels.
• Auto Shut-off: Configurable auto-off time.
• Speed Limit Control: Option to enable/disable speed limit.
• Light-Sensing Auto Functions: Automatic backlight adjustment.
• Headlight Switch: Short press the light button to turn on/off.
• Walk Assist Mode: Engages a low-speed assist for walking alongside the bike.

III. Specifications

IV. Setup (Assembly & Connection)

1. Dimensions

The VD618 display has a screen size of 3.5 inches. The overall dimensions are approximately 108.41mm (height) x 61.35mm (width) x 93.55mm (depth, including mount). The keypad dimensions are approximately 62.20mm (height) x 72.98mm (width) x R11.10mm (depth).

2. Assembly Instructions

1. Display Mounting: Open the holder ring/rubber spacer of the display and fix the display on the handlebar. Adjust it to a proper facing angle. Use an M4 Hex Wrench to fix and tighten the screws. Standard fixing torque: 1N·m. Damage due to excessive fixing torque is not covered by warranty.
2. Keypad Mounting: Open the holder ring/rubber spacer of the keypad and fix it on the handlebar. Adjust it to a proper facing angle. Use an M3 Hex Wrench to fix and tighten the screws. Standard fixing torque: 1N·m. Damage due to excessive fixing torque is not covered by warranty.
3. Connecting the Display: Plug the 5-pin connector of the display to the coupling connector of the Controller.

V. Operating Instructions

1. Display Interface

1.1 Riding Interface

The riding interface shows real-time riding status and various data points:

• Status Indicators: Front Light, Brake, Low Voltage, READY/Error.
• Battery Status: Residual Battery Percentage.
• Multi-Function Section: ODO (total range), TRIP (single ride range), MAX (max. speed), AVG (average speed), TIME (riding time), VOL (battery voltage), Wh (motor power), CUR (current).
• Assist Level Mode: Displays the current assist level (5 levels by default, 6 modes available).

1.2 Setting Interface

When in the setting interface, the display shows the setting item (e.g., P01) and its parameter value (e.g., 02).

1.3 Error Interface

The error interface indicates an error with an 'ERROR' mark and a specific error code (e.g., 06).

2. Keypad Overview

The keypad has 5 keys:

• '+' (Plus Key): Increases values, changes assist level.
• 'Power' (On/Off Key): Powers on/off, enters/exits settings, saves values.
• '-' (Minus/Walk Assist Key): Decreases values, changes assist level, activates walk assist mode.
• 'Light' (Light Key): Turns headlight on/off.
• 'i' (Info Key): Toggles display information (ODO, TRIP, TIME).

3. Key Operation

Key operation guide:

• Press and Hold: Press and hold the key(s) for more than 2 seconds.
• Press: Press the key(s) for less than 0.5 seconds.
• Double Tap: Double tap the key(s) within 0.3 seconds.

3.1 On/Off

• Turn on the Display: When the display is off, press and hold the On/Off Key. It will show the boot interface and then enter the riding interface. If a boot password is activated, enter it at startup.
• Turn off the Display: When the display is on, press and hold the On/Off Key. The display will turn off. If no operation is engaged for 5 minutes (or the set auto-off time), the display will auto-off.

3.2 Assist Level

Press the Plus Key (+) or Minus/Walk Assist Key (-) to switch assist levels. There are 5 levels by default: 0/1/2/3/4/5. Level 0 means no assist power.

3.3 Toggle Displays

When the display is on, press the Info Key (i) to toggle among ODO (total range), TRIP (single trip range), TIME (riding time), etc.

3.4 Light On/Off

• Turn on the Front Light: When the front light is off, press the Light Key. The light icon will be shown on the riding interface.
• Turn off the Front Light: When the front light is on, press the Light Key. The light icon will be off on the riding interface.

3.5 Walk Assist Mode

• Engage Walk Assist Mode: On the riding interface, press and hold the Minus/Walk Assist Key. The walk mode icon will be shown, and real-time speed will be displayed in the speed section.
• Disengage Walk Assist Mode: Release the Minus/Walk Assist Key. The icon will turn off.

3.6 Speed Limit Switch

• Disable Speed Limit: On the riding interface, when in speed limit mode, press and hold the Plus Key (+) and the Minus/Walk Assist Key (-) simultaneously to disable speed limit mode.
• Enable Speed Limit: On the riding interface, when in limitless speed mode, press and hold the Plus Key (+) and the Minus/Walk Assist Key (-) simultaneously to enable speed limit mode.

VI. Settings

1. Setting Operations

1. Enter the Settings: When the display is on, double tap the On/Off key. Available setting items include wheel size, speed limit, etc.
2. Adjust Settings: On the Settings interface, press the On/Off key to enter the setting item. Press the Plus Key (+) or the Minus/Walk Assist Key (-) to set values. The value will blink after change. Press the On/Off Key to save the set value and switch to the next item.
3. Save and Exit Settings: Double tap the On/Off key to exit the Settings and save the set value. The system will save and exit automatically if there's no operation for 10 seconds.

2. Setting Items

• P01: Backlight Brightness. 1: darkest; 5: brightest.
• P02: System Unit. 0: km (metric); 1: mile (imperial).
• P03: Auto-Off Time. 0: never; other values mean auto-off time interval in minutes. Range: 1-60.
• P04: Pedal Assist Level. Options include 0-3 Level Mode, 1-3 Level Mode (no Level0), 0-5 Level Mode, 1-5 Level Mode (no Level0), 0-9 Level Mode, 1-9 Level Mode (no Level0).
• P05: Wheel Size (Password 1919 Protected). Unit: inch; Increment: 0.1. Range: 0.1~50.0.
• P06: Speed Limit (Password 1919 Protected). Range: 0-100km/h. The max speed will be kept constant at the set value (applicable to both PAS/throttle mode).
• P07: Trip/ODO Clearance. Press the Plus Key (+) or Minus/Walk Key (-) to select TRIP/ODO. Then press and hold the Plus Key (+) for 5 seconds to clear ODO or Trip value. Press and hold the Minus/Walk Assist Key (-) for 5 seconds to restore factory settings.
• P08: Auto-Light. 0: auto-light deactivated; 1: auto-light activated.
• P09: Sensitivity of Light Sensor. Range: 20-100.
• P10: Boot Password. By default, no password. To remove boot password, enter 0000.

VII. Troubleshooting (Error Codes)

If an error occurs, the display will show an 'ERROR' mark and a corresponding error code. Refer to the table below for common error codes and their meanings:

VIII. Maintenance

• Cleaning: Use a soft, damp cloth to clean the display screen and body. Avoid abrasive cleaners or solvents that could damage the screen or casing.
• Protection: Do not tear the waterproof film on the screen surface to maintain its IP66 waterproof rating.
• Environmental Conditions: Avoid prolonged exposure to heavy rain, snow, or strong direct sunlight to prevent damage.
• Connections: Periodically check all cable connections for secure fit and signs of wear. Ensure the 5-pin connector is fully seated.
• Software/Firmware: Keep the display's firmware updated as recommended by the manufacturer (if applicable, though this model does not support APP updates).

IX. User Tips

• Voltage Compatibility: Always verify that the display's specified voltage range (36V/48V/52V/60V/72V) matches your e-bike's motor and battery system. If your motor is 52V but the display indicates 48V, ensure the display is correctly configured for your system's voltage to avoid performance issues.
• Speed Limit Unlocking: The VD618 supports a speed limit switch function (P06 setting). If you wish to adjust or unlock the speed limit, refer to section VI.2 'Setting Items' for P06 and section V.3.6 'Speed Limit Switch' for operation. Be aware of local regulations regarding e-bike speed limits.
• CAN Protocol Check: Before purchase or installation, confirm that your e-bike motor uses the Bafang CAN Bus protocol. This display is not compatible with UART protocol motors.

X. Warranty & Support

1. Warranty Information

In compliance with local laws, Sciwil provides a limited warranty period covering 24 months after the date of manufacturing (as indicated by the serial number), applicable to quality issues during normal operations. The limited warranty shall not be transferred to a third party other than as specified in the agreement with Sciwil.

2. Warranty Exclusions

• Sciwil products that have been opened, modified, or repaired without authorization.
• Damage on the connectors.
• Damage to the surface after leaving the factory, including shell, screen, buttons, or other appearance parts.
• Damage to wiring and cables after leaving the factory, including breaks and exterior scratches.
• Damage or loss due to force majeure (e.g., fire or earthquake) or natural disaster (e.g., lightning).
• Out of the warranty period.

3. Additional Resources

For a complete and detailed user manual, please refer to the official PDF document: VD618 User Manual (PDF)