GMK330 - Electric meter Goodwe - Free user manual and instructions

USER MANUAL GMK330 Goodwe

(GMK330 | GMK360 | GM330)

V1.4 -2025-05-30

TABLE OF CONTENTS

EN....1

BG....4

CS 8

DA....11

DE....14

EL....17

ES....21

ET....24

FI 27

FR 30

HR....34

HU 37

IT 40

LT....43

LV 46

NL....50

PL 53

PT 57

RO 61

SK 64

SL....67

SV 70

Introduction 73

01 IMPORTANT SAFETY INSTRUCTIONS

EN

SAVE THESE INSTRUCTIONS

Please strictly follow these safety instructions in the user manual during the operation.

General Disclaimer

• The information in this quick installation guide is subject to change due to product updates or other reasons. All descriptions here are for guidance only.
• Before installations, read through the quick installation guide.
• All operations should be performed by trained and knowledgeable technicians who are familiar with local standards and safety regulations.
• Check the deliverables for correct model, complete contents, and intact appearance. Contact the manufacturer if any damage is found or any component is missing.
• Strictly follow the installation, operation, and configuration instructions in this guide and user manual. The manufacturer shall not be liable for equipment damage or personal injury if you do not follow the instructions. For more warranty details, please visit https://en.goodwe.com/warranty.

Safety Disclaimer

WARINING

• Make sure that the device is powered off before any operations.
• Ensure the cables are connected tightly, securely, and correctly. Inappropriate wiring may cause poor contact or damage the device.
  • Additional circuit breakers are recommended on the voltage input side to avoid personal injury or device damage.
• If the voltage of the power grid fluctuates, resulting in the voltage to exceed 265V, in this case, long-term overvoltage operation may cause damage to the meter. It is recommended to add a fuse with a rated current of 0.5A on the voltage input side of the meter to protect it.
• CT direction: House-->Grid.
• Ensure to connect the voltage input side of the Smart Meter between Loads and Household meter, CT and L cable connected correctly as well. Otherwise, the monitoring data may be wrong.
• Pay attention to the silkscreens on the device when connecting the voltage input cables. A wrong connection may cause damage to the device.
• Pay attention to the silkscreens on the device when connecting the CT and RS485 to the Smart Meter. A wrong connection may cause incorrect reading values.
• In areas at risk of lightning, if the input cable of the device exceeds 10m, you are recommended to use an external lightning protection device. If the communication cables are wired with grounded metal conduits, the lightning protection device is not necessary.
• The ingress protection rating of the smart meter is IP20, which is suitable to be installed indoors or inside of the distribution box. For outdoor installation, prepare a waterproof cover to protect the smart meter. Otherwise it will cause damage to the equipment, which is beyond the manufacturer's liability.
  • After installing the CT to the power cable, do not plug or unplug the CT connection terminal on the smart meter, otherwise the meter may be damaged due to high voltage.

Personal Requirements

• Personnel who install or maintain the equipment must be strictly trained, learn about safety precautions and correct operations.
• Only qualified professionals or trained personnel are allowed to install, operate, maintain, and replace the equipment or parts.

Check before Power-on

No. Check Item
1	The product is firmly installed at a clean place that is well-ventilated and easy-to-operate.
2	The input power cables, CT Cables, and communication cables are connected correctly and securely.
3 Cable ties are intact, routed properly and evenly.

Storage

If the equipment is not to be installed or used immediately, please ensure that the storage environment meets the following requirements:

• Do not unpack the outer package or throw the desiccant away.
• Store the equipment in a clean place. Make sure the temperature and humidity are appropriate and no condensation.
• If the smart meter has been long term stored, it should be checked by professionals before being put into use.

02 EU Declaration of Conformity

The module sold in the European market meets the following directives and requirements:

• Electromagnetic compatibility Directive 2014/30/EU (EMC)
• Electrical Apparatus Low Voltage Directive 2014/35/EU (LVD)
- Restrictions of Hazardous Substances Directive 2011/65/EU and (EU) 2015/863 (RoHS)
- Waste Electrical and Electronic Equipment 2012/19/EU
- Registration, Evaluation, Authorization and Restriction of Chemicals (EC) No 1907/2006 (REACH)

You can download the EU Declaration of Conformity on https://en.goodwe.com.

03 Technical Parameters

Model GMK330 GMK360 GM330
Measuring range
Support Grid Type	Three-phase Split-phase Single-phase	Three-phase Split-phase Single-phase	Three-phase Split-phase Single-phase
Line to Line Voltage Range (Vac) 1	56~457 156~457 172~81	7
Line to N Voltage Range (Vac) 90~	264 90~264 100~472
Nominal AC Grid Frequency (Hz) 50/60 50/60 50/60
Current Transformer Ratio	200A:50mA/120A:40mA	200A:50mA/120A:40mA	nA:5A
Number of Current Transformers	3 6 /
Accuracy
Voltage/Current Class 0.5 Class 0.5	Class 0.5
Active Energy Class 0.5 Class 0.5	Class 0.5
Reactive Energy Class 1 Class 1	Class 1
Communication
Communication Method RS485 RS	485 RS485
Communication Distance (m/ft)	1000	1000	1000
General
Dimensions (W×H×D mm/in)	72*85*72	72*85*72	72*85*72
Housing	4 modules	4 modules	4 modules
Weight (g/Ib)	240	240	240
Mounting	Din rail	Din rail	Din rail
User interface	4 LED, Reset button	4 LED, Reset button	4 LED, Reset button
Power Consumption(W)	<5	<5	<5
Environment
Ingress Protection Rating	IP20 IP20	IP20
Operating Temperature Range (°C/°F)	-30-+70	-30-+70	-30-+70
Storage Temperature Range (°C/°F)	-30-+70	-30-+70	-30-+70
Relative Humidity (non-condensing)	0-95% 0-95%	0-95%
Max. Operating Altitude (m/ft)	3000	3000	3000

NOTE

The smart meter is mainly used for power control at the grid-connection point. The measured energy yield and electricity consumption are for reference only and cannot be used as a basis for calculating electricity fees. Electricity fee measurement is subject to the meter provided by the grid company.

TYTO POKYNY SI USCHOVEJTE

01 OLULISED OHUTUSJUHISED

ET

SALVESTA NEED JUHISED

01 VAŽNE SIGURNOSNE UPUTE

HR

SAČUVAJTE OVE UPUTE

USCHOVAJTE SI TIETO POKYNY

Top view Bottom view

RS485 B RS485 A A B COM CT3- CT3+ CT2- CT2+ CT1- CT1+

N L1 L2 L3

Front View

I3 I2 I1 Reset Button Indicators N L1 L2 L3 85mm 72mm

Side view

35.5mm 72mm

GMK360

Top view Bottom view

RS485 B RS485 A A B COM CT3- CT3+ CT2- CT2+ CT1- CT1+ CT1- CT3- CT3+ CT2- CT2+ CT1- CT1+

N L1 L2 L3

Front View

Reset Indicators Button CH1 I3 I2 I1 I3 I2 I1 CH2 85mm N L1 L2 L3 72mm

Side view

35.5mm 72mm

GM330

Top view

CT1+ CT1- CT2+ CT2- CT3+ CT3- RS485 B RS485 A

Bottom view

N L1 L2 L3

Front View

+ - I1 + - + - I2 I3 A B COM Reset Indicators Button R - N L1 L2 L3 85mm 72mm

Side view

35.5mm 72mm

CT

NOTE

Type of the CT differs depending on actual configuration.

Type I

63mm 22mm 57.5mm 2m

20mm

CT direction:House-->Grid

Type II

2m 32mm

45mm 16mm 35mm

05 Wiring System

GMK330

NOTE

Recommended cross-sectional area of the smart meter input power cable: 1mm²(18AWG).

Hybrid Inverter

RS485_B RS485_A Recommended breaker specification: Ur≥300Vac Ir≥500mA Cu, S=1mm²(18AWG)

GMK360

NOTE

- Recommended cross-sectional area of the smart meter input power cable: 1mm^2 (18AWG).

graph TD
    A["Grid-Tied PV Inverter"] --> B["AC-Coupled Inverter"]
    B --> C["RS485_B"]
    B --> D["RS485_A"]
    C --> E["Recommended breaker specification: Ur≥300Vac, Ir≥500mA"]
    D --> E
    E --> F["Cu, S=1mm²(18AWG)"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#ffc,stroke:#333
    style F fill:#cff,stroke:#333

GM330

NOTE

• Recommended cross-sectional area of the smart meter input power cable: 1mm^2(18AWG) .
• Short circuit N and L2 in the three-phase three-line system.
• Set the CT 's turns ratio via SolarGo App. For example, set the CT ratio to 40 if a 200A/5A CT is selected.
• Scan the QR code below to get more information.

SolarGo App User Manual

Type I: Three-phase four-wire

Grid-Tied PV Inverter RS485 B RS485 A Recommended breaker specification: Ur≥600Vac Ir≥500mA Cu, S=1mm²(18AWG)

Type II: Three-phase three-wire

graph TD
    A["Grid-Tied PV Inverter"] --> B["RS485_B"]
    A --> C["RS485_A"]
    B --> D["Current Meter"]
    C --> D
    D --> E["Power Supply"]
    E --> F["Ground"]
    G["Recommended breaker specification: Ur≥600Vac, Ir≥500mA"] --> H["Current Meter"]
    H --> I["Cu, S=1mm²(18AWG)"]
    I --> J["Ground"]
    K["Optional CT2"] --> L["T1"]
    L --> M["T3"]
    M --> N["Measurement Device"]
    O["Ground"] --> P["Power Supply"]
    Q["Power Supply"] --> R["Ground"]

Connect CT cables

NOTICE

• Only applicable to GM330.
• Prepare the CT. Or contact the device manufacturer for purchasing.
• Specifications of the CT:

1. Choose nA/5A for the current transformation ratio of the CT. (nA: For primary current of the CT, n ranges from 200 to 5000. Set the current value depending on the actual needs. 5A: The output current of the secondary current of the CT.)

2. The recommended precision of the CT: 0.5, 0.5s, 0.2, 0.2s. Ensure the sampling error for the CT current shall be ≤ 1%.

- The CT bore diameter shall be bigger than the outer diameter of AC power cable, to ensure the AC power cable can be inserted through CT.

- Do not use network cable as CT cable, as excessive current may cause damage to the meter.

The dimension and appearance of the CT differs slightly according to its type provided by the device manufacturer. However, the installation and wiring methods are the same.

Example CT1

The recommended conductor cross-sectional area of the CT's secondary output cable: 1.6mm^2 (15AWG cable).

Example CT2

Direction of the current House Grid L1/L2/L3 K L + - + - A 0 COM N L3 L2 L3

GM330

For specific CT wirings, refer to the documents provided by the respective manufacturer.

06 Installation

Packing List

× 1 ^[1]

x 1 ^[2]

× 1 ^[2]

x 1 [2]

× 1 ^[3]

× 1 ^[3]

×1×1

× N ^4

× 1 ^[2]

Simple 3D illustration of a box with a zigzag line above it (no text or symbols)

[1]. GMK330:CT x 3; GMK360: CT x 6; GM330 is not equipped with CT.
[2]. Only for GM330.
[3]. Only for GMK330, GMK360.
[4]. GMK330, GMK360: x 5; GM330: x 6.

Installation and Cable Connection

GMK330/GMK360

GMK330 and GMK360 are connected in the same way. The following illustrations take GMK330 as an example.

6.5mm 1 2 3 4 C 1-1.5N·m 7 8 N L1 L2 L3 9 C 0.2N·m 10 N L1 L2 L3 11 6

GM330

RS485B RS485A 2 C 0.5N·m

6.5mm 1-1.5N·m 4 B 9 11 0.5N·m 10 12 8 N L1 L2 L 6

07 Commissioning

Power ON

Step 1 Connect the smart meter cables.

Step 2 Turn on the breaker on the voltage input side. Then the smart meter is powered on.

Indicator

Type Status Description
Power light	Steady on Power on, no RS485 communication.
	Blinking Power on, RS485 communication works properly.
	Off Power off.
Communication light	Off Reserved.
	Blinking	Press the Reset button for more than 5 seconds,power light, buying or selling electricity indicator light flash:Reset the meter.
[HWSY]Buying or selling electricity indicator light	Steady on Purchasing from the utility grid.
	Blinking Selling to the utility grid.
	Off No purchasing or selling.
Buying or selling electricity indicator light(Only for GMK360)	Steady on Purchasing from the utility grid.
	Blinking Selling to the utility grid.
	Off No purchasing or selling.

08 Maintenance

! DANGER

Power off the smart meter before operations and maintenance. Otherwise, the smart meter may be damaged or electric shocks may occur.

Power OFF

Step 1 (Optional)Turn off the breaker on the voltage input side.
Step 2 Take out the terminals from the voltage input side of the Smart Meter, then the smart meter is powered off.

Removing the Smart meter

Step 1 Disconnect all the cables, including input power cable cables, CT cables, RS485 communication cables.
Step 2 Press the buckle at the bottom of the device to take it from the rail.
Step 3 Store the smart meter properly. If the smart meter needs to be used later, ensure that the storage conditions meet the requirements.

Official Website

GoodWe Technologies Co., Ltd.

No. 90 Zijin Rd., New District, Suzhou, 215011, China

www.goodwe.com

[e-mail]

Local Contacts