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Version: 1-01
User Manual
Each Energy Technology (Suzhou) Co., Ltd.
Address: No.8 Building, No. 38 of Beiguandu Road, Yuexi
Street, Wuzhong District, Suzhou, Jiangsu Province, China
Tel: +8651266581088
Email: service@eachenergy.com
Web:
www.eachenergy.com
Each Energy Technology (Suzhou) Co., Ltd.
www.eachenergy.com
Copyright © Each Energy Technology (Suzhou) Co., Ltd.
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Table of Contents
Related Manuals for Each Energy EES8K-M1
Summarization of Contents
1. About the Manual
Validity
Specifies the inverter models for which this manual is valid.
Target Group
Identifies the intended audience for this user manual.
Valid Region
Lists the geographical regions where the manual applies.
2. Product Overview
2.1 Product Description
Describes the function of Each Energy inverters in converting DC to AC power.
Product Appearance
Illustrates the physical appearance of the inverter and its ports.
2.2 Front Panel
Operation Panel
Details the buttons and indicators on the inverter's front operation panel.
LED Light Indicators
Explains the status and meaning of the LED lights on the inverter.
2.3 Scope of Delivery
Included Items
Lists all the components and accessories included in the product package.
3. Safety
Safety Symbols
Defines various symbols used in the manual to indicate risks and precautions.
Safety Instructions
Provides essential safety guidelines for operating and handling the inverters.
4. Mounting
4.1 Installation Location
Guidelines for selecting an appropriate and safe location for inverter installation.
4.2 Inverter Mounting
Mounting Procedures
Step-by-step instructions for physically mounting the inverter onto a wall bracket.
5. Electrical Connection
5.1 DC Side Connection
Detailed steps for connecting the DC input from PV strings to the inverter.
DC Cable Assembly
Instructions on how to prepare and attach DC cables to the inverter connectors.
5.2 AC Side Connection
AC Connection Procedures
Step-by-step guide for connecting the inverter to the utility grid via AC connector.
5.3 External Grounding Connection
Grounding Connection Procedure
Instructions for establishing a proper external grounding connection for safety.
5.6 Communications Connection
5.6.1 Communications Overview
Diagram illustrating the overall communication system architecture.
5.6.2 WiFi/GPRS Stick Installation
Instructions for installing WiFi or GPRS communication sticks.
5.8 Meter and CT Installation
Meter and CT Connection
Guidance on connecting meters and current transformers for monitoring.
6. Operation
6.1 Start and Stop Inverters
Step-by-step procedure for safely starting the inverter.
6.1.2 Inverter Turning-off
Step-by-step procedure for safely stopping the inverter.
6.2 LCD Operation
6.2.1 Main Menu
Overview of the main menu structure and navigation for the LCD screen.
6.2.2 Basic Info.
Explanation of information displayed in the 'Basic Info.' sub-menu.
6.2.3 BASIC SETUP
6.2.3.1 Time Setting-up
Procedure for setting the inverter's internal clock and date.
6.2.3.2 Address Setting-up
Configuration for the inverter's RS485 communication address.
6.2.3.3 Language Setting-up
Option to change the display language of the inverter's interface.
6.2.4 Detail Info - Maintenance Personnel Only
6.2.4.1 Operation Information
Displays detailed operational data such as voltage, current, and power.
6.2.4.2 Fault Info.
Information on detected faults, their descriptions, and potential causes.
6.2.4.3 Warning Info.
Details on warning conditions that may affect operation but do not stop it.
6.2.4.4 Software Version/Firmware Version
Shows the current software and firmware versions of the inverter.
6.2.4.5 Rated Power
Indicates the nominal power output rating of the inverter.
6.2.4.6 Rated Voltage
Displays the rated operating voltage of the inverter.
6.2.4.7 Daily Energy
Shows the total energy generated on a specific day.
6.2.4.8 Monthly Energy
Displays the total energy generated over a specified month.
6.2.4.9 Yearly Energy
Shows the total energy generated over a specified year.
6.2.4.10 Export Total
Indicates the total accumulated energy exported to the grid.
6.2.4.11 Export Today
Displays the amount of energy exported to the grid on the current day.
6.2.5 Technical Set – Maintenance Personnel Only
ALL Set Enable
Enables all configurable functions within the Technical Set menu.
Standard Set
Allows selection of safety standards and country grid codes.
VAC H Limit
Sets the high limit for AC output voltage.
VAC L Limit
Sets the low limit for AC output voltage.
FAC H Limit
Sets the high limit for AC output frequency.
FAC L Limit
Sets the low limit for AC output frequency.
Pmax Limit
Configures the maximum generation power limit.
AC Inst Limit
Sets the AC instant voltage limit.
Power Control
Allows adjustment of the inverter's power output control.
Standard Func
Configures power rate limits, such as soft ramp up/down.
Special Func
Enables or configures special functions for the inverter.
Set Passwords
Function to change or set passwords for accessing menus.
Factory Reset
Restores the inverter to its original factory default settings.
Adjust Total E
Allows adjustment of the total energy generated data.
Reset Total E
Clears the historical record of total energy generation.
Inverter ON/OFF
Controls the grid connection status of the inverter.
6.2.5.2 Standards Set
Procedures: Select Country Grid Code
Steps to select the appropriate country grid code for the inverter.
6.2.5.7 Standard Function
Power Rate Limit Setup Procedures
Steps to configure power rate limits like soft ramp up/down.
6.2.5.8 Special Function Setup
Set CV MPPT
Configures the constant PV voltage tracking for MPPT.
All PV Paral
Enables parallel operation for multiple MPPTs.
HVRT
Enables the High Voltage Ride Through functionality.
LVRT
Enables the Low Voltage Ride Through functionality.
1/2BUS Prot
Enables bus mid-point voltage protection.
6.2.5.8.2 Volt-var Response Mode
QU CURVE
Enables or disables the QU curve for volt-var response.
6.2.5.8.3 Volt-watt Response Mode
PU CURVE
Enables or disables the PU curve for volt-watt response.
Volt-var Response Mode Procedures
Steps to enable or disable the Volt-var Response Mode.
6.2.5.8.4 Fixed Power Factor Mode or the Reactive Power Mode
PF CURVE
Enables or disables the PF curve for fixed power factor mode.
Q CURVE
Enables or disables the Q curve for reactive power mode.
Reactive Power Mode Setup Procedures
Steps to configure the Reactive Power Mode.
Fixed Power Factor Mode Setup Procedures
Steps to configure the Fixed Power Factor Mode.
Volt-watt Response Mode Procedures
Steps to enable or disable the Volt-watt Response Mode.
6.2.5.14 Export Limit
Soft Limit Configuration
Sets a software-controlled limit for power export.
Hard Limit Configuration
Sets a hardware-controlled limit that stops operation if exceeded.
Detection Mode Configuration
Selects CT or meter mode for export limit detection.
7. Maintenance and Troubleshooting
7.1 General Maintenance
Basic cleaning and upkeep guidelines for the inverter.
7.4 Troubleshooting
DC Volt Over
Troubleshooting steps for high DC input voltage from PV strings.
DC Over Current Soft
Solutions for soft DC overcurrent protection events.
DC Over Current Hard
Solutions for hard DC overcurrent protection events.
Bus Over Voltage Soft
Troubleshooting steps for soft bus overvoltage.
Bus Over Voltage Hard
Troubleshooting steps for hard bus overvoltage.
Transient Over Voltage
Solutions for transient overvoltage events in the grid.
Inv Over Current Soft
Troubleshooting steps for soft inverter overcurrent.
Inv Over Current Hard
Troubleshooting steps for hard inverter overcurrent.
Island Protect
Solutions for island protection faults.
7.4 Troubleshooting
Low Temperature Inside Inverters
Troubleshooting steps for operation in low ambient temperatures.
High Temperature Inside Inverters
Troubleshooting steps for operation in high ambient temperatures.
Extern Flash
Solutions for abnormalities in external flash reading or writing.
Bus Unbalance
Troubleshooting steps for bus unbalance issues.
Low bus voltage
Solutions for low bus voltage events.
Over Frequency
Troubleshooting export reduction due to over frequency.
Over Temperature
Troubleshooting export reduction due to over temperature.
Relay Fault
Solutions for faults in the grid-connection relay.
MS Comm Fault
Troubleshooting communication faults between CPU and slave.
Power to Grid beyond Limit
Solutions for exceeding the power export limit.
PEN No Connect
Troubleshooting PE and N line connection issues.
GFCI Device Fault
Solutions for GFCI leakage testing device faults.
ACHCT Device Fault
Troubleshooting ACHCT device faults on the AC side.
GFCI Out Range
Solutions for GFCI leakage current out of range.
DCI Out Range
Troubleshooting DC component being too large.
ISO Out Range
Solutions for insulation impedance being too small.
No Grid... Pls Turn On AC
Troubleshooting steps when no utility grid is detected.
7.4 Troubleshooting
Temp is Too High
Troubleshooting steps for high inverter temperature.
Temp is Too Low
Troubleshooting steps for low inverter temperature.
PV Over Voltage
Solutions for overvoltage in PV inputs.
Grid Volt Over 110%
Troubleshooting grid overload conditions.
Grid Volt Out Range
Solutions for grid voltage being out of the specified range.
Grid Freq Out Range
Solutions for grid frequency being out of the specified range.
8. Specification
DC Input Specifications
Technical parameters for the DC input side of the inverter.
AC Output Specifications
Technical parameters for the AC output side of the inverter.
Efficiency Ratings
Details on the maximum and EU efficiency of the inverter.
Protection Features
Lists the various protection mechanisms integrated into the inverter.
General Data
Physical dimensions, weight, and environmental operating conditions.
Communication Interfaces
Information on supported communication methods like WiFi, GPRS, etc.
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