Seplos LCD Only For Inverter BMS Communicate With PC

Seplos Bluetooth LCD Display Module for Inverter BMS User Manual

Model: LCD Only For Inverter BMS Communicate With PC

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the Seplos Bluetooth LCD Display Module. This module is designed to communicate with the new version (V2.0 10E) of Seplos inverter Battery Management Systems (BMS) for LiFePO4, Li-ion, and Lithium battery applications. It allows users to monitor BMS data either directly via the LCD screen or through a smartphone application (for Bluetooth-enabled versions).

Important Compatibility Note: This Bluetooth LCD module is exclusively compatible with the new version of inverter BMS (V2.0 10E). It does not support older versions of BMS. Please verify your BMS version before attempting installation.

Seplos Bluetooth LCD Display Module with PCB, highlighting compatibility with new BMS versions and app support.
Figure 1: Seplos Bluetooth LCD Display Module overview, showing support for 50-200A BMS and iOS/Android App. Note the compatibility restriction to new BMS versions (V2.0 10E).

2. Product Variants

The Seplos LCD Display Module is available in two main variants:

  • Without Bluetooth (Model: LCD003_PCBA-V11): This version provides local display functionality only. It does not support smartphone monitoring via an app.
  • With Bluetooth (Model: LCD004_PCBA-V12): This version includes Bluetooth connectivity, enabling data viewing and monitoring through the dedicated iOS/Android smartphone application.

To view data with a mobile phone, you must purchase the screen with Bluetooth functionality.

Back of the PCB for the 'Without Bluetooth' version, labeled LCD003_PCBA-V11.
Figure 2: PCB for 'Without Bluetooth' variant (LCD003_PCBA-V11).
Back of the PCB for the 'With Bluetooth' version, labeled LCD004_PCBA-V12.
Figure 3: PCB for 'With Bluetooth' variant (LCD004_PCBA-V12).

3. Setup and Installation

3.1 Package Contents

Before installation, ensure all components are present:

  • Seplos LCD Display Module (with or without Bluetooth, depending on your purchase)
  • Connecting ribbon cable (typically pre-attached or included)

3.2 Physical Connection

  1. Power Off: Ensure your inverter BMS and battery system are completely powered off before making any connections.
  2. Locate BMS Port: Identify the dedicated communication port on your Seplos V2.0 10E inverter BMS for the LCD display. This is typically a multi-pin connector.
  3. Connect Ribbon Cable: Carefully connect the ribbon cable from the LCD Display Module to the corresponding port on the BMS. Ensure the connector is properly aligned and fully seated to avoid damage to pins.
  4. Secure Mounting (Optional): If desired, mount the LCD display in a suitable enclosure or panel using appropriate fasteners (not included).
  5. Power On: Once the connection is secure, power on your BMS and battery system. The LCD display should illuminate and show initial data.
Angled view of the Seplos LCD module and its separate PCB, showing the ribbon cable connection point.
Figure 4: LCD module and PCB, illustrating the connection interface.

3.3 App Installation (For Bluetooth Version Only)

If you have the Bluetooth-enabled version, download the official Seplos app from your smartphone's app store (available for iOS and Android). Follow the in-app instructions to pair with your LCD module and BMS.

4. Operation

4.1 LCD Display Navigation

The LCD module features four buttons for navigation and interaction:

  • ENTER: Confirms selections or enters sub-menus.
  • EXIT: Returns to the previous menu or exits a function.
  • NUM+: Navigates up or increases a value.
  • NUM-: Navigates down or decreases a value.
Close-up of the Seplos LCD module with four labeled buttons: ENTER, EXIT, NUM+, NUM-.
Figure 5: LCD module with navigation buttons.

Use these buttons to scroll through various data screens, view battery parameters, and potentially adjust settings if supported by your BMS firmware.

4.2 Smartphone App Usage (For Bluetooth Version Only)

Once paired, the Seplos smartphone app provides a comprehensive interface for monitoring your BMS data. This typically includes:

  • Real-time voltage, current, and temperature readings.
  • Battery State of Charge (SOC).
  • Individual cell voltages.
  • BMS status and error codes.
  • Historical data logging.

Refer to the in-app help or the BMS manual for specific features and functionalities available through the app.

5. Maintenance

The Seplos LCD Display Module requires minimal maintenance. Follow these guidelines to ensure longevity:

  • Cleaning: Use a soft, dry cloth to clean the screen and module. Avoid abrasive cleaners or solvents that could damage the display or casing.
  • Environmental Conditions: Operate the module within its specified temperature and humidity ranges. Avoid exposure to direct sunlight, extreme temperatures, or excessive moisture.
  • Connections: Periodically check the ribbon cable connection to ensure it remains secure.

6. Troubleshooting

If you encounter issues with your Seplos LCD Display Module, refer to the following common problems and solutions:

ProblemPossible CauseSolution
LCD does not power on or display data.Incorrect connection, incompatible BMS, or no power to BMS.1. Ensure the ribbon cable is correctly and securely connected to the BMS. 2. Verify your BMS is the new V2.0 10E version. 3. Confirm the BMS is powered on.
Smartphone app cannot connect to the module.Module is not Bluetooth-enabled, Bluetooth is off, or app issue.1. Confirm you have the 'With Bluetooth' version of the LCD module. 2. Ensure Bluetooth is enabled on your smartphone. 3. Restart the app and try pairing again. 4. Check for app updates.
Incorrect or erratic data displayed.Loose connection, BMS communication issue.1. Check all connections for tightness. 2. Consult your BMS manual for troubleshooting communication errors.

7. Specifications

FeatureSpecification
Brand NameGhidorah (Seplos)
Model NumberLCD Only For Inverter BMS Communicate With PC
Accessory TypeBattery Accessories
OriginMainland China
Compatible BMSNew version of inverter BMS (V2.0 10E)
Supported BMS Current Ratings50A, 100A, 150A, 200A (10E version)
App Support (Bluetooth version)iOS, Android
Charger IncludedNo
Battery IncludedNo
High-concerned chemicalNone
Package Dimensions (L x W x H)15 cm x 15 cm x 15 cm (approximate)
Package Weight0.6 kg (approximate)

8. User Tips

  • Verify BMS Version: Always double-check that your inverter BMS is the new V2.0 10E version to ensure compatibility with this LCD module.
  • Choose Correct Variant: If you intend to use a smartphone app for monitoring, ensure you purchase the 'With Bluetooth' version of the LCD module. The 'Without Bluetooth' version does not support app connectivity.
  • Gentle Handling: The LCD module and its ribbon cable are delicate electronic components. Handle them with care during installation to prevent damage.
  • Firmware Updates: Periodically check the Seplos official website or app for any firmware updates for your BMS or LCD module, which may introduce new features or improve performance.

9. Warranty and Support

For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt or order details handy as proof of purchase.