EPEVER RTU 2G A GPRS Transmission Terminal Instruction Manual

EPEVER RTU 2G A GPRS Transmission Terminal Important Safety Instructions

• Read the instructions and warnings in the manual carefully before installation.
• The product should be situated away from the rain, exposure, dust, vibration, corrosion, and intense electromagnetic environment.
• Please avoid water and other liquids entering the product.
• Never use the product at sites where electrostatic could occur, and avoid the antenna close to a metal object.
• DO NOT disassemble or attempt to repair the product.
• Power supply: 9~48VDC can be customized according to customers’ requirements.
• Enable GPRS service for the SIM card before installation.

Overview

EPEVER RTU 2G A is a new wireless data transmission terminal based on the GPRS network. With the GSM/GPRS SIM card, the connected devices can easily access the EPEVER cloud server to realize remote, wireless, and networked communication. EPEVER RTU 2G A is suitable for EPEVER solar controller, inverter, and inverter/charger.

Features:

• Extensive network coverage and flexible networking
• Low operating costs (charged by network flow)
• Adopt a DB9 male terminal
• Embedded in Modbus RTU protocol
• Automatic restore after disconnection
• Support RS485 communication

Appearance

The pin definition of the terminal(DB9 female) connected to the DB9  male terminal❸ is follows.

Indicators

You can observe the indicators’ color and status through the hole❷.

Network indicator (LED2)

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Red

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On solid

| Correct power supply
Unregistered GPRS network

Slowly flashing (5s)

| Registered GPRS network successfully
Sync. Indicator (LED1)|

Green

|

Slowly flashing (5s)

| Registered GPRS network successfully
---|---|---|---
Power indicator (LED2)|

Green

| Turn off after a flashing|

Correct power supply

Parameter Configuration

1. Step1: Connect the DB9 terminal ❸ to the PC through a DB9 to USB adapter.
   Note: Conne ct an extern al power adapter to the DB9 female terminal to supply the EPEVER RTU 2G A.

2. Step2: Insert the SIM card and power on the EPEVER RTU 2G A. For detailed SIM card installation, refer to chapter 5, Installation.

3. Step3: Open the configuration tool on the PC and click the “connect” button to connect the EPEVER RTU 2G A successfully.

4. Step4: Click the “Read” and “Write” buttons to configure the parameter. Step5: After configuring, power on the product again to make the modified parameters take effect.

Common configuration parameters

APN

| Different countries have different APNs, and please make sure APN first. Products will not be connected to the Internet with fault APN.

China APN: CMNET

APN User| Enter it according to the actual
APN Key| Enter it according to the actual
Baud| Set it according to the connected controller or inverter

Installation

Step1: Install the SIM Card

1. Purchase a SIM card and activate the GPRS service.
2. Undo the three screws from the EPEVER RTU 2G A.
3. Push the shell upward and take out the circuit board.
4. Take out the small SIM card and insert it into the card slot correctly.
5. After installing successfully, reinstall the product shell.

Step2: Install the silicone pad

Tear off the silicone pad’s adhesive and stick the silicone pad to the DB9 terminal of the EPEVER RTU 2G A.

Step3: Install the antenna

Connect the antenna to the antenna port of the EPEVER RTU 2G A.

Caution: As a wireless terminal, keep the antenna away from the human body as far as possible during the operation process.
Step4: Connect the device
Take the connection with the solar controller as an example.
Connect the DB9 connector of the RS485 communication cable to the EPEVER RTU 2G A, then connect the ends of the RS485 communication cable to the master LORA module and the battery separately.
Note: The EPEVER RTU 2G A supports 9~48V DC power. While a larger transient current is needed when the wireless network sends the data, it is suggested to adopt a DC power of 12V/500mA or above.

Note: If the EPEVER RTU 2G A is connected with the inverter or inverter/charger. Connect the DB9 connector of the RS485 communication cable to the EPEVER RTU 2G A. Then connect the ends of the RS485 communication cable to the battery and the device COM port. The master LORA module is no longer needed.

Specifications

Anti-interference test, level 3

Connect the device to the EPEVER cloud server

The device connected with the EPEVER RTU 2G A can be added to the Cloud server by the PC or mobile APP. Take adding the device through the mobile APP as an example (For the operations of adding a device by PC, refer to the EPEVER Cloud Server user manual).
CAUTION: Please get the Android or IOS version of the EPEVER cloud APP according to your phone system and install it successfully.
Step 1: Connect the EPEVER RTU 2G A with the device as chapter 5, Installation.

Step 2: Open the APP, click the “EPEVER Cloud” icon, and input the account to log in.

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Step 3: Click the “Plant” icon (it is the “Light” icon instead when login in with the streetlight account), and select a project.

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Step 4: Click ”   > Add Device” on the “Plant List” page.

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Step 5: Select the device to be added to the cloud server.

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Step 6: Select the connected module (the EPEVER RTU 2G A).

| Step 7: Input the ID (or scan the QR code) on the module label, and click “Confirm” to enter the Plant or Light project

page directly.

troubleshooting

LED indicators are OFF

| 1.   Check whether to supply power to the EPEVER RTU 2G A.

2.   Check whether the power supply’s poles are connected inversely. The EPEVER RTU 2G A is equipped with anti-reverse protection. The reverse connection does not cause fatal damage. However, it affects the normal use before the correct connection is restored.

The network indicator ON solid

| After power is on, the network indicator is on solid for 60 seconds. If it still cannot flash after 60 seconds, please check:

1.   Check whether the SIM card is inserted correctly.

2.   Check whether the GPRS service is activated.

The Network indicator is on solid again after running for a while:

1.   Check whether the server status is normal.

2.   Check whether the SIM card is loose or arrear.

Smoke emits along with a pungent smell| The connected battery voltage exceeds the rated voltage, causing the internal components to burn out. Don’t hesitate to contact the supplier in time and send it to the manufacturer.

Unregister on the network

| 1.   Check whether the SIM card is inserted correctly.

2.   Check whether the SIM card has activated the GPRS service.

3.   Check whether the input power is sufficient. Input power should be 12VDC/500mA.

Parameters can’t be configured

| 1.   Check whether the connection to the PC is correct.

2.   Check whether the serial port selection is correct.

References

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