The NAKTO Electric Bicycle LCD-M5 display is a control panel designed for electric bicycles, providing a range of information and control features for the rider.
Function Description
The LCD-M5 display serves as the central interface for monitoring and controlling various aspects of an electric bicycle. It provides real-time data on speed, battery level, and pedal-assist system (PAS) settings. The display also includes indicators for headlights, running models (Walk, Cruise, PAS), and error codes. Users can access and modify various settings related to the bike's operation, such as background lightness, distant unit (KM/MILE), battery voltage, sleeping time, PAS levels, wheel diameter, magnet steel count for speed measurement, speed limit, start mode (zero/none zero), powering model, PAS sensitivity, PAS starting intensity, magnet steel model for PAS, currency limit for the controller, controller low voltage value, ODO reset, cruiser function, displayed speed ratio adjustment, and protocols.
Important Technical Specifications
Physical Dimensions:
- Display Unit:
- Front: 86.0 mm (width) x 93.4 mm (height)
- Side: 56.4 mm (depth)
- Control Buttons:
- Front: 18.15 mm (width) x 48.00 mm (height)
- Side: 48.00 mm (width) x 43.85 mm (height) x 22.2 mm (depth)
- Rack Mount: Designed for a 31.8 mm rack.
- Material: ABS & Meta & Glass.
Electrical Specifications:
- Voltage: DC24V, 36V, 48V, 60V, 64V.
- Wiring (Higo-05M HOLE):
- 1 (BROWN): VCC (Power source)
- 2 (GREEN): RX (Data receiving)
- 3 (BLACK): GND (Ground)
- 4 (ORANGE): K (Power switch for controller)
- 5 (WHITE): TX (Data Sending)
Display Information:
- ENERGY BAR: Battery level indicator.
- SPEED: Real-time speed display in MPH or KM/H.
- PAS: Pedal Assist System level (0-9 levels).
- ODOTRIPABVOLCURRMTM: Multi-function area displaying Total Range ODO, Single Range TRIP A, Single Range TRIP B, Voltage VOL, Currency CUR, miles left RM, and Running time TM.
- Running Model: Indicators for Walk (assistant walking), Cruise (Cruiser model), and PAS (pedal assistant).
- Error Codes: Displays various error codes for bike status, including Stay, Brake, PAS sensor, 6KM/H Cruiser, Cruiser, Low voltage, Motor breakdown, Throttle error, Controller error, Signal receiving error, Signal sending error, BMS communication, Head light error, Currency abnormal, Motor lost one phase, Motor Magnet error, and Communication Error.
Usage Features
Basic Operation:
- Power On/Off: Press and hold "M" to turn on/off the LCD display and power.
- Speed Unit Change: Push and hold "+" to change the display of the speed unit (MPH/KM/H).
- PAS Level Control: Press "∧" or "∨" to increase/decrease the PAS level to control the top speed.
- Headlight Control: Press and hold "∨" for 2 seconds to switch on/off the headlight.
- Multi-function Display Switch: Click "M" to switch between different function displays in the multi-function area.
Settings Access and Modification:
- Enter Settings: Press and hold "∧" and "∨" simultaneously to enter settings.
- Navigate Settings: Press "M" to switch between different setting parameters (P01 to P20).
- Adjust Values: Use "∧" or "∨" to increase or decrease the value of the selected setting. Pushing and holding "∧" or "∨" can change the value faster.
- Exit and Save Settings: Press and hold "∧" and "∨" simultaneously to exit settings and save values. Alternatively, the system will automatically exit and save values after 8 seconds of inactivity.
Specific Settings:
- P01 (Background lightness): 1 (dark), 2 (normal), 3 (lightest).
- P02 (Distant unit): 0 (KM), 1 (MILE).
- P03 (Battery Voltage): Options for 24V, 36V, 48V (default 36V).
- P04 (Sleeping time): 0 (unlimited), 1-60 minutes.
- P05 (PAS Level):
- 3 levels model: Level 1 (2V), Level 2 (3V), Level 3 (4V).
- 5 levels model: Level 1 (2V/12MPH), Level 2 (2.5V/13.1MPH), Level 3 (3V/15.7MPH), Level 4 (3.5V/16.3MPH), Level 5 (4V/19MPH).
- P06 (Wheel diameter): Unit in inches.
- P07 (No of magnet steel for speed measurement): Range 1-100.
- P08 (Speed limit): Range 0-50 km/h (50 means no limit).
- P09 (Setting for zero/none zero start): 0 (zero start), 1 (none zero start).
- P10 (Powering Model settings):
- 0: PAS (throttle disabled, output power corresponds to PAS levels).
- 1: Throttle (PAS disabled, output power controlled by throttle turning, top speed corresponds to PAS level settings).
- 2: PAS & Throttle (requires P09 setting to be 1).
- P11 (PAS sensitivity): Range 1-24.
- P12 (PAS starting intensity): Range 0-5.
- P13 (Magnet steel model for PAS): 5, 8, 12 three models.
- P14 (Currency limit for controller): Range 1-20A (default 12A).
- P15 (Controller low voltage value).
- P16 (ODO reset): Push and hold "∧" button for 5 seconds.
- P17 (Cruiser disabled/abled): 0 (Cruiser disabled), 1 (Cruiser abled).
- P18 (Displayed Speed ratio adjust): Range 50%-150%.
- P19 (Effectiveness): 0 (yes), 1 (no).
- P20 (Protocols).
Special Functions:
- 4MPH Cruiser Mode: During a stop, push and hold "∨" and "M" to enter 4MPH Cruiser mode. Release the button to stop.
- ODO Reset: While on P16 status, press and hold "∨" for 5 seconds to reset the Odometer.
Maintenance Features
The manual primarily focuses on the operational aspects and settings of the LCD-M5 display. It does not explicitly detail maintenance procedures for the device itself. However, the error codes displayed on the screen serve as a crucial diagnostic tool for identifying potential issues with the electric bicycle's components, which indirectly aids in maintenance. For example, error codes like "Motor breakdown," "Throttle error," or "Controller error" would indicate specific areas requiring inspection or repair. The "BMS communication" error also points to potential issues with the Battery Management System, which is vital for battery health.
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