Epever GoMate Series, GM3024N User Manual

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GoMate Series

——Flush Mount Solar Charger

User Manual

Model: GM3024N

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Contents

Important Safety Instructions .................................................... 1

1. Overview ................................................................................. 2

2. Exterior .................................................................................... 3

2.1 Designations of models ............................................. 3

2.2 Accessories (Included) ............................................... 4

2.3 Accessories (Optional) ............................................... 4

3. Installation and wiring ............................................................ 5

3.1 Install the controller .................................................... 5

3.2 Wiring ........................................................................... 6

4. LCD display ............................................................................ 8

5. Protection .............................................................................. 10

6. Troubleshooting .................................................................... 11

7. Technical Specifications ...................................................... 12

8. Disclaimer ............................................................................. 14

9. Dimensions ........................................................................... 15

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

Thank you for selecting the GoMate series solar charge controller. Please read this manual carefully before using the product and pay attention to the safety information. Please reserve this manual for future review.

Important Safety Instructions

This manual contains all instructions of safety, installation, and operation of GoMate series controller (“the controller” is referred to this manual).

 Read all the instructions and warnings carefully before installation.  No user serviceable component inside the controller. DO NOT disassemble or

attempt to repair the controller.

 Avoid direct sunlight, high temperatures and DO NOT install the controller at

locations where water can get in.

 Install the controller at well-ventilated places, the controller’s heat sink will be very

hot during the system operation.

 Appropriate external fuses or breakers are suggested.  Please cut off all connections of the PV array, fuses or breakers which close to the

battery before the controller installation and adjustment.

 Power connections must remain tight to avoid excessive overheating from the

loose connection.

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

1. Overview

The GoMate is a negative-ground, flush mount solar charge controller, designed for an aesthetically clean and integrated look on RV and Vessel, also included surface mount cover to suit personal preference. The GoMate adopts highly efficient PWM charging mode, also comes equipped with special LCD display to show the real-time operating status of the system. This charge controller is fully controlled automatically, which provide simple usage pattern to users.

Features：

 Flush mounted and embedded installation design

 High quality and low failure rate components (ST/IR) to ensure the

product lifetime

 3-Stage intelligent PWM charging: Bulk, Boost/Equalize and Float  Battery type: Sealed, Gel, Flooded, and User  Real-time energy statistics feature  Battery temperature compensation feature  Digital LCD monitor for informative display of operational parameters

and fault messages

 Voltage drop and temperature compensation sampling interface design  RS485 communication port with Modbus protocol, and short circuit

protection for 5V/200mA power supply

 Multiple communication peripherals  Rated charging current at working temperature without de-rating

 Extensive electronic protections

 Monitor and set the parameters via PC software or APP

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2. Exterior

❶

Controller case

❻

Battery terminals

❷

Mounting hole sizeφ 4.5mm

❼

PV terminals

❸

SET button

❽

Remote temperature sensor port⑴

❹

LCD

❾

RS485 communication port

❺

MENU button

❿

Remote battery voltage sensor port⑵

(1)The controller will charge the battery at 25℃ as default and no temperature compensation when the temperature sensor is damaged.

(2) The port can detect accurate battery voltage(a 2P/1.5mm2 wire (Red+, black-) with insulation protection is suggested). One end connects the 5.08-2P terminal to insert ❿ port, the other end connects the battery, and make sure the “+” and “-” poles are connected correctly.

2.1 Designations of models

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2.2 Accessories (Included)

(Model: RT-MF58R47K3.81A)

2.3 Accessories (Optional)

1）Remote Temperature Sensor(Model:RTS300R47K3.81A)

NOTE: The temperature sensor short-circuited or damaged, the controller will be charged or discharged at the default temperature of 25 ℃.

2）USB to RS485 communication cable(Model:CC-USB-RS485-150U)

3）RS485 TO WIFI Converter (Model:eBox-WIFI-01)

4）RS485 TO BLE Converter(Model:eBox-BLE-01)

5）Logger(Model:eLOG01)

6）Remote Meter(Model:MT50)

Temperature Sensor

Acquisition of battery temperature for undertaking temperature compensation of control parameters, the standard length of the cable is 3m (length can be customized). The RTS300R47K3.81A connects to the port ❽on the controller.

USB to RS485 converter is used to monitor each controller using Solar Station PC software. The length of cable is 1.5m. TheCC-USB-RS485-150U connects to the RS485 Port on the

After the controller is connected with the eBox-WIFI-01 through the standard Ethernet cable (parallel cable), the operating status and related parameters of the controller can be monitored by the mobile APP software through WIFI signals.

After the controller is connected with the eBox-BLE-01 through the standard Ethernet cable (parallel cable), the operating status and related parameters of the controller can be monitored by the mobile APP software through Bluetooth signals.

After the controller is connected with the eLOG-01 through the RS485 communication cable, it can record the operating data of the controller or monitor the real-time operating status of the

MT50 displays various operating data and fault info the system. The information can be displayed on a backlit LCD screen, the buttons are easy-to-operate, and the numeric display is readable.

5.08-2P Terminal

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

3. Installation and wiring

3.1 Install the controller

1) Determine the Installation Location and Heat-dissipation Space

Determination of installation location: The controller shall be installed in a place with sufficient air flow through the radiators of the controller and a minimum clearance of 150 mm from the upper and lower edges to ensure natural thermal convection.

2) Determine the size of Installation Location (158*96mm)

3) Cut out the section (158*96mm)

4) Mark holes and drill holesφ 3.5mm*4

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

5) Secure the controller

6) Install the control case

3.2 Wiring

Step1: connect the battery ❶

CAUTION: A fuse which current is 1.25 to 2 times the rated current of the

controller must be installed on the battery side with a distance from the battery not greater than 150 mm.

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

Step2: Connect the PV ❷

CAUTION: While wiring the controller do not turn on the breaker or fuse and

make sure that the leads of "+" and "-" poles are connected correctly.

CAUTION: If the controller is used in the ungoverned or frequent lightning

area, must install a reasonable arrester in the PV array input side.

Step3: Connect the Remote temperature sensor cable ❸

NOTE: The controller will charge or discharge the battery at 25℃ as default

and no temperature compensation when the temperature sensor is damaged.

Step4:Connect the Remote battery voltage sensor ❹

CAUTION: Make sure that the battery voltage sensor cable of "+" and "-"

poles are connected correctly when wiring.

Step5: Connect the PC via the RS485 communication port ❺

Refer to the chapter 4 "Remote set battery type".

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

4. LCD display

1) Automatic cycle interface

Display: PV voltage, PV current, PV power, Battery voltage and Battery temperature

2) Clear the generated energy Operation:

Step 1: Press the “SET” button and hold 5s under the PV power interface and the

value is flashing. Step 2: Press the “SET” button to clear the generated energy

3) Switch the battery temperature unit

Press the “SET” button and hold 5s under the battery temperature interface.

4) Battery type

 Battery type

Sealed Gel Flooded User⑴

 Set battery type by LCD⑴

Operation: Step1: Press the “SET” button and hold 5s under the battery voltage interface.

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Step2: Press the “MENU” button when the battery type interface is flashing. Step3: Press the “SET” button to confirm the battery type.

 Set battery type by PC⑴

Download software

www.epever.com——Solar Station Monitor www.epever.com——ChargeController(Sealed) (1)Only Sealed, Gel and Flooded via the LCD, The battery type of User can be set

via the PC software, APP software and MT50.

5) System status icon

Icon

Phenomenon

Instruction

Solid

The system is normal but not charging

Energy bars are Flashing

Charging

Solid

Full

Flashing

Battery Overvoltage

Flashing

Battery Over Discharge

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5. Protection

Protection

Instruction

PV Overcurrent

When the charging current of the PV array exceeds the controller’s rated current, it will be charged at the rated current.

PV Overvoltage

When the voltage of PV will exceed 50V, the controller will stop charging and restart to charge when the PV voltage is below 45V

PV short circuit

When the PV voltage is below 50V and short circuit, the controller will stop charging; the controller restart to charge when the fault is cleared, it doesn’t damage the controller.

PV Reverse Polarity

When the polarity of the PV array is reversed, the controller may not be damaged and can continue to operate normally after the polarity is corrected.

Night Reverse Charging

Prevents the battery from discharging to the PV module at night.

Battery Reverse Polarity

Fully protected against battery reverse polarity; no damage will occur to the battery. Correct the wiring error to resume normal operation.

Battery Overvoltage

When the battery voltage reaches the overvoltage disconnect voltage, it will automatically stop battery charging to prevent battery damage caused by over-charging.

Battery Overheating

The controller can detect the battery temperature through an external temperature sensor. The controller stops working when its temperature exceeds 65 °C and restart to work when its temperature is below 55 °C.

Controller Overheating

The controller is able to detect the temperature inside the battery. The controller stops working when its temperature exceeds 85 °C and restart to work when its temperature is below 75 °C.

TVS High Voltage Transients

The internal circuitry of the controller is designed with Transient Voltage Suppressors (TVS) which can only protect against high-voltage surge pulses with less energy. If the controller is to be used in an area with frequent lightning strikes, it is recommended to install an external surge arrester.

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

6. Troubleshooting

Faults

Possible reasons

Troubleshooting

The PV of LCD display 0 when the sunshine falls on PV modules properly

PV array disconnection

Confirm that PV wire connections are correct and tight

LCD is no display

Min.8V will start up the controller.

Measure battery voltage with multi-meter. Min.8V can start up the controller.

Flashing

Battery Overvoltage

Disconnect the solar array and measure the battery voltage whether is too high;

Flashing

Battery Over Discharge

Charge the battery

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

7. Technical Specifications

Electrical Parameters

Item

GM3024N

Nominal System Voltage

12/24VDC or Auto

Battery Input Voltage Range

8V～32V

Rated Charge Current

30A

Max. PV Short Circuit Current

30A

Max. PV Open Circuit Voltage

50V

Battery Type

Sealed(default)/Gel/Flooded/User★

Self-consumption

≤4.2mA/12V;≤2.6mA/24V

Temperature Compensate Coefficient

-3mV/℃/2V(Default)

Charge Circuit Voltage Drop

0.21V

★The battery type of User can be set via the PC software, APP software and MT50. Refer to table 1(Page 13).

Environmental Parameters

Storage Temperature Range

-30℃～+80℃

Working Environment Temperature

-20℃～+55℃(100% input and output)

Relative Humidity

≤95%, N.C.

Enclosure

IP30

Grounding

Common negative

Altitude

5000m

Pollution Degree

PD2

Mechanical Parameters

Dimension (L×W×H)

178.5×105.5×48.3mm

Mounting dimension

166.5×93.5mm

Mounting hole size

Φ5mm

Terminal

16mm2/6AWG

Recommended cable

10mm2/8AWG

Net Weight

0.31kg

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BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

Lead-acid Battery Voltage Parameters Table1 Parameters are in the 12V system at 25℃, ×2 in 24V.

Item

Sealed

Gel

Flooded

User

Over Voltage Disconnect Voltage

16.0V

9～17V

Charging Limit Voltage

15.0V

9～17V

Over Voltage Reconnect Voltage

15.0V

9～17V

Equalize Charging Voltage

14.6V

——

14.8V

9～17V

Boost Charging Voltage

14.4V

14.2V

14.6V

9～17V

Float Charging Voltage

13.8V

9～17V

Boost Reconnect Charging Voltage

13.2V

9～17V

Low Voltage Reconnect Voltage

12.6V

9～17V

Under Voltage Warning Reconnect Voltage

12.2V

9～17V

Under Volt. Warning Volt.

12.0V

9～17V

Low Volt. Disconnect Volt.

11.1V

9～17V

Discharging Limit Voltage

10.6V

9～17V

Equalize Duration

120min.

——

120min.

0～180min.

Boost Duration

120min.

10～180min.

(1)When the battery type is sealed, gel, flooded, the adjusting range of equalizing duration is 0 to180min and boost duration is 10 to180min. (2) The battery type of User should follow the rules as below when modifying the value of parameters in user battery type (factory default value is the same as sealed type): a. Over Voltage Disconnect Voltage > Charging Limit Voltage ≥ Equalize Charging

Voltage ≥ Boost Charging Voltage ≥ Float Charging Voltage > Boost Reconnect

Charging Voltage. b. Over Voltage Disconnect Voltage > Over Voltage Reconnect Voltage c. Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage ≥ Discharging Limit Voltage. d. Under Voltage Warning Reconnect Voltage > Under Voltage Warning Voltage ≥ Discharging Limit Voltage. e. Boost Reconnect Charging voltage > Low Voltage Disconnect Voltage.

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