EPEVER RTU 4G A GPRS Transmission Terminal User Manual

EPEVER RTU 4G A GPRS Transmission Terminal

Thanks for selecting the EPEVER RTU 4G solar wireless collector. Please read this manual carefully before using the product. Please keep this manual for future reference.

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 enter into 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: DC 9~60V or 5V, it can be customized according to customers’ requirements.
• Enable GPRS service for the SIM card before installation.

Overview

EPEVER RTU 4G A is a new wireless data transmission terminal based on the 4G 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 4G 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 non-standard 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 as follows.

Indicators

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

Network indicator (LED2)

|

Red

|

On solid

| Correct power supply
Not registered to the network
Slowly| Successfully  registered  to  the
 |  | flashing (5s)| network
---|---|---|---
Sync. Indicator (LED1)|

Green

| Slowly

flashing (5s)

| Successfully registered to the network
Power indicator (LED2)|

Green

| Turn off after a flashing|

Correct power supply

Parameter Configuration

• Step1: Connect the DB9 male connector ❸ to the PC through a DB9 to USB adapter.
  Note: Connect an external power adapter to the DB9 female terminal to supply the EPEVER RTU 4G A.

• Step2: Insert the SIM card and power on the EPEVER RTU 4G A. For detailed SIM card installation, refer to chapter 6, Installation.

• Step3: Open the configuration tool on the PC and click the “connect” button to connect the EPEVER RTU 4G A successfully.

• 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 APN, and please make sure APN firstly. 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

System Connection

EPEVER RTU 4G A can be applied to the following solar street light systems. Through a 2G/3G/4G signal, users can easily monitor the operating status and modify the related parameters on the Cloud platform.

Step1: Install the SIM Card

1. Purchase a SIM card and activate the GPRS service.

2. Undo the three screws from the EPEVER RTU 4G 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.
   Insert the SIM card in the direction

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 4G A.

Step3: Install the antenna
Connect the 4G antenna to the antenna port of the EPEVER RTU 4G 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 controller
Connect the terminal to the controller’s com. port through a DB9 adapter.

Applications

According to different applications, the cloud platform provides two networking connection methods: “one-to-one” and “one-to-more.” Controllers can be added to the system conveniently and flexibly by the two methods. Users can remote control or real-time monitor the controller through the cloud platform.

One-To-One connection

One-To-more connection
After adding the device into the Cloud platform successfully, log in to the cloud platform (https://iot.epsolarpv.com), remotely monitor the real-time condition or set the parameters.

Note: For new accounts, devices need to be manually added in the EPEVER cloud before monitoring.

Specifications

Frequency

| GSM900/1800MHZ, CDMA: BC0, WCDMA: B1/B8, TD-SCDMA: B34/B39, LTE TDD: B38/B39/B40/B41,

LTE FDD: B1/B3/B5/B8

Anti-interference test, level 3

Troubleshooting

LED indicator OFF

| 1.   Check whether the power supply is correct.

2.   Check whether the power supply’s poles are connected inversely. The EPEVER RTU 4G A is equipped with anti-reverse protection. The reverse connection does not cause fatal damage. However, it affects regular use

before the correct connection is restored.

Network indicator ON solid

| After power is on, the network indicator is on solid in 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. Network indicator 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 with a pungent smell

| The actual 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/0.2A or 5VDC/0.2A.

Parameters can’t be configured| 1.   Check whether the connection to the PC is correct.

2.   Check whether the serial port selection is correct.

Dimension

Any changes without prior notice! Version number: 3.2.

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