Related Manuals for Epever EHD6K
Summary of Contents for Epever EHD6K
- Page 1 USER MANUAL On-Grid Hybrid Inverter (Grid Support Utility-interactive Inverter) EHD6K, EHD8K, EHD10K, EHD12K...
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Page 3: Table Of Contents
Table of Contents Preface ........................................1 Disclaimers ......................................3 Important Safety Instructions ..............................4 1 Product Introduction ................................10 1.1 Overview ..................................10 1.2 Appearance ..................................11 1.3 Indicator ...................................12 1.4 Dimensions ..................................13 1.5 Naming rules ..................................14 1.6 Application scenarios ..............................14 1.7 Supported grid types .............................. - Page 4 2.8 Moving the inverter ..............................24 2.9 Installing the inverter ..............................25 3 Electrical Connection ................................26 3.1 Safety cautions ................................26 3.2 Circuit diagram ................................26 3.3 Port cable description ...............................29 3.4 Connecting the PV cable ............................30 3.5 Connecting the battery cable (BAT) ........................31 3.6 Connecting the Backup load, Grid and GEN cable ..................32 3.7 Connecting the COM cable ............................33 3.7.1 BMS ..................................
- Page 5 6 Protections ....................................64 7 Technical Specifications ................................66...
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Page 6: Preface
(including software, etc.), reproduce or distribute it in any form or by any means. EPEVER reserves the right of final interpretation. This manual may be updated based on user or customer feedback. Please visit our website www.epever.com for the latest version. - Page 7 Indicates a low-level hazard that, if not avoided, could result in minor or moderate injury. NOTICE Indicates an important reminder during the operation which, if ignored, may result in an equipment error alarm. Indicates recommendation for reference. Read through the user manual before any operations. Copyright © EPEVER...
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Page 8: Disclaimers
manual instructions. Unauthorized disassembly and maintenance of the inverter. Damage caused by force majeure such as lightning strikes, rainstorms, mountain torrents and grid failures, etc. Damage occurred during transportation or loading/unloading the inverter. Copyright © EPEVER... -
Page 9: Important Safety Instructions
(namely, the PV open circuit voltage after low temperature correction) does not exceed the maximum input voltage of the inverter. Failure to do so may result in inverter damage or other losses, for which EPEVER reserves the right to exclude warranty and shall not bear any joint liability. -
Page 10: Transportation Precautions
If any packaging issues are found that may cause damage to the inverter, or if any visible damage is found to the inverter, please immediately notify the responsible shipping company. If necessary, you can seek assistance from your PV system installer or EPEVER. 5. Assembly precautions Assemble the inverter according to the details in the following sections of this manual. -
Page 11: Inverter Label
6. Inverter label Labels must not be covered by unrelated objects (such as rags, cardboard boxes, equipment, etc.). Regular wiping is necessary to keep them visible at all times. Copyright © EPEVER... - Page 12 Pay attention to the polarity of the electrical connection. Temperature Mark Indicates the operating temperature range. Up Mark The inverter must always be transported, handled, and stored in such a way that the arrows always point upwards. Copyright © EPEVER...
- Page 13 Do not touch terminals or conductors connected to the grid and PV circuit. WARNING Please wear protective gloves when operating the inverter as some internal components will heat up. NOTICE Pay attention to any instructions or safety documentation related to grid connections. Copyright © EPEVER...
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Page 14: Maintenance Precautions
Unauthorized disassembly or alteration of components within the inverter is prohibited. Any losses caused by this will not be covered by the warranty or joint liability of EPEVER. 11. Inverter EMC Disclaimer This equipment is designed to comply with Electromagnetic Compatibility (EMC) standards. -
Page 15: Product Introduction
Optional RS485/WiFi/GPRS modules for smart monitoring RSD rapid shutdown to reduce device damage and prevent personnel injury The off-grid load can support 100% unbalanced load Supports two-wire control for generator start/stop functionality Copyright © EPEVER... -
Page 16: Appearance
PE copper terminals Grid connection port (From left to COM2 port right: L1, N and L2 ) For the introduction of Ports ③, ④, ⑧, ⑨, ⑩, ⑪, and ⑫, please refer to Subsection 3.7 Connecting the COM cable. Copyright © EPEVER... -
Page 17: Indicator
Data sending in Solid ON Software/IoT. No data sending in Software/IoT. Solid ON Normal grid. Grid Abnormal grid Solid ON Normal AC output Load Abnormal AC output Pink Upgrade successful. Solid red Upgrade failed. Upgrade Flashing Upgrading. Copyright © EPEVER... -
Page 18: Dimensions
1.4 Dimensions 29.02 in 30.01 in 737.0 mm 762.2 mm 20.2 in 9.37 in 513.0 mm 238.0 mm 21.58 in 548.2 mm Copyright © EPEVER... -
Page 19: Naming Rules
1.5 Naming rules 1.6 Application scenarios Schematic diagram of single inverter connection WiFi/GPRS RS485 Grid On-Grid Load EHD series inverter Meter Battery Smart Load Critical Load Generator String Inverters/Microinverters Copyright © EPEVER... - Page 20 Schematic diagram of multiple inverters connection WiFi/GPRS RS485 Grid On-Grid Load EHD Series Inverter 1 Meter Battery WiFi/GPRS EHD Series Inverter N Critical Load Battery Smart Load Generator String Inverters/Microinverters Copyright © EPEVER...
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Page 21: Supported Grid Types
In split-phase power system areas where bonding the inverter’s PE and the grid’s N line is not required, the Grid PE-N Bonding Detection function must be disabled in the APP. Otherwise, the inverter will not operate in on-grid mode. Copyright © EPEVER... -
Page 22: Working Modes
The stages of high and low electricity demand are divided by season, week, and time of day, with summer and winter primarily determining high and low demand, weekdays and weekends primarily determining electricity usage, and day and night primarily determining electricity demand. Copyright © EPEVER... -
Page 23: Time-Of-Use Mode
When the electricity price is at its valley, set the time for the grid to charge the battery. When the electricity price is at its peak, the battery will power the load first, and the remaining power can be sold to the grid. Thereby earning the Copyright © EPEVER... -
Page 24: Peak Shaving Mode
When the battery runs out of energy, the system can switch to a diesel generator mode, and then the generator supplies power to the load. Scenario recommendation: Recommended for use in areas with unstable power grid. Copyright © EPEVER... -
Page 25: Installation
If any damage is found on the inverter, do not open the package and contact your dealer as soon as possible. It is recommended to inspect the packaging materials within 24 hours before installing the inverter. Copyright © EPEVER... -
Page 26: Check Accessories List
Do not install the inverter on the support with poor sound insulation to avoid the noise generated by the working product, which may annoy the residents nearby. The altitude to install the inverter must not exceed 4,000 meters. Copyright © EPEVER... -
Page 27: Installation Angle
Inverter supports wall mounting and bracket mounting. Installation angle requirements are as follows: Install the inverter vertically or at a maximum back tilt of 15 degrees. Do not install the inverter in a tilted, horizontal, upside down, excessively backward-leaning, or sideways-tilted position. 15° Max Copyright © EPEVER... -
Page 28: Installation Space
In scenarios with multiple inverters, a linear installation is recommended when space is sufficient; when space is limited, the following Triangle installation is recommended. It is not recommended to install multiple inverters in a stacked configuration. 11.81in 300mm 7.88in 200mm Copyright © EPEVER... -
Page 29: Moving The Inverter
The power line and signal line ports at the bottom of the inverter cannot bear weight; do not let the terminal connectors directly touch the ground; place the inverter horizontally. NOTICE When placing the inverter on the ground, use foam or cardboard underneath to prevent damage to the casing. Copyright © EPEVER... -
Page 30: Installing The Inverter
Step 3: Align the mounting plate with the holes, put shrapnel and flat pads, and fix the mounting plate with hexagonal nuts. Step 4: Hang the inverter on the mounting plate and lock them with M6 Allen socket screws. Copyright © EPEVER... -
Page 31: Electrical Connection
Bonding Detection function has been enabled in the APP. Additionally, for the electricity meter, the voltage sampling signal: PIN2 is connected to L1, PIN5 is connected to L2, PIN10 is connected to N, and the current sampling is connected to two channels CT1-1 and CT1-2. Copyright © EPEVER... - Page 32 N Bonding Detection function has been disabled in the APP. Also, for the electricity meter, the voltage sampling signal: PIN2 is connected to L1, PIN5 is connected to L2, PIN10 is connected to N, and the current sampling is connected to two channels CT1-1 and CT1-2. Copyright © EPEVER...
- Page 33 Ensure that the rated output voltage of L1-L2 for the grid, Back-up, and generator is 240VAC. Otherwise, it may cause malfunctions in the inverter. For the electricity meter, the voltage sampling signal: PIN2 is connected to L1, PIN10 is connected to L2, and only one-channel CT1-1 is needed for the current sampling. Copyright © EPEVER...
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Page 34: Port Cable Description
3.3 Port cable description COM1 COM2 PV1-2 PV3-4 BACK-UP GRID WIFI/GPRS Recommended cable Port Definition Cable type specification 6AWG PV1-2 Outdoor multi-core copper cable 12AWG PV3-4 12AWG COM1 WIFI/GPRS COM2 BACK-UP Outdoor multi-core copper cable 6AWG GRID Copyright © EPEVER... -
Page 35: Connecting The Pv Cable
Step 2: Use wire strippers to strip the insulation layer of the PV cable to a suitable length (as shown in Figure ①). Step 3: Insert the stripped cables into their respective positive and negative metal terminals. Use wire crimper to firmly press the cables, ensuring a secure connection between the cables and the metal terminals. Copyright © EPEVER... -
Page 36: Connecting The Battery Cable (Bat)
Step 5: Secure the OT terminal to the grounding PE copper busbar using M5 screws, as shown in Figure ②. The recommended tightening torque is 2 N·m. Step 6: Use a multimeter to check the correct connection of the battery positive and negative poles and PE cables, and then finished. Copyright © EPEVER... -
Page 37: Connecting The Backup Load, Grid And Gen Cable
(as shown in Figure ② and ③). Step 4: First loosen the terminal screws, then insert the L1, L2, and N cables into their respective terminal holes. Use a Phillips screwdriver to tighten the screws (as shown in Figure④). Copyright © EPEVER... -
Page 38: Connecting The Com Cable
Idle BAT-485A Lithium battery RS485 differential signal + BAT-485B Lithium battery RS485 differential signal - Note: For specific details on the battery usage, please refer to the EHD Series Battery Instructions on the EPEVER official website: https://www.epever.com/products/. Copyright © EPEVER... - Page 39 Schematic diagram of RS485 and CAN communication connections for lithium batteries Copyright © EPEVER...
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Page 40: Com1/Com2
Current transformer 1 output negative CT1- pole (Black line) Current transformer 2 output positive pole CT2+ (White line) Current transformer 2 output negative CT2- pole (Black line) Meter-RS485A Meter 485 communication Meter-RS485B Idle +12V Auxiliary supply +12V GNDS GNDS GNDS GNDS Copyright © EPEVER... - Page 41 For a single-inverter system without on-grid load, the following three options are used to achieve the anti-reverse current function: CT, Meter, or neither CT nor Meter. See schematic diagrams below for details. ① Without On-Grid Load + Anti-reverse Current + CT Copyright © EPEVER...
- Page 42 For a single-inverter system with on-grid load, the following two options are used to achieve the anti-reverse current function: CT and Meter. See schematic diagrams below for details. ① With On-Grid Load + Anti-reverse Current + CT Copyright © EPEVER...
- Page 43 For a single-inverter system with on-grid load, three options are available when there is no anti- reverse current function: CT, Meter, or neither CT nor Meter. See schematic diagrams below for details. ① With On-Grid Load + No Anti-reverse Current + CT Copyright © EPEVER...
- Page 44 The dry contacts of the COM1 communication port can be connected to CT1, CT2, and the electricity meter signals. This connection is used for communication between the inverter and the electricity meter, as well as for collecting the current signals flowing through CT. Copyright © EPEVER...
- Page 45 Figure ④. The arrow on the electricity meter CT should point towards the grid. The installation direction and wiring method of CT1/2 is shown in Figure ⑥, along with the port definitions for the COM1port type. The CT arrows point toward the grid. Copyright © EPEVER...
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Page 46: Der Grid Dispatch And Wired Monitoring Com. Port
RS485 to USB adapter, and then connect the adapter's USB port to the computer. Note that it is recommended to use double-shielded Cat5e anti-interference network cable as the communication cable between the energy storage inverter and the RS485-to-USB adapter. Copyright © EPEVER... - Page 47 Configured the RSD transmitter in the on-grid hybrid inverter may cause interference in the user area. Emergency Stop Buton COM2 10 9 8 7 6 5 4 3 2 1 Transmiter Receiver 1 Receiver 2 Receiver n Power Line Communicaton (PLC) Transmiter Coil To PV Copyright © EPEVER...
- Page 48 Emergency Stop Buton COM2 10 9 8 7 6 5 4 3 2 1 +12V To “Bsck-up” Transmiter Power Supply serice panel Receiver 1 Receiver 2 Receiver n Power Line Communicaton (PLC) Transmiter Coil To PV Copyright © EPEVER...
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Page 49: Wifi/Gprs Com. Port
WiFi/GPRS module for inverter remote monitoring. The pins of the WiFi/GPRS com. port (USB-A 3.0) are defined as follows: Picture USB-A 3.0 Description Data interface Power ground RS485-A RS485 communication RS485-B Idle Idle Idle Connecting the WiFi/GPRS com. port Installing a WiFi/GPRS module for single inverter Copyright © EPEVER... - Page 50 WEB interface or an APP, as needed. An account for the WEB or APP is required, and users need to bind the inverter with the serial number of the WiFi/GPRS communication module. The WiFi/GPRS serial number is stuck on both the packaging box and the module itself. Copyright © EPEVER...
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Page 51: Parallel Connection Port
AC GRID terminal (not the AC LOAD terminal). For example, the maximum AC LOAD power of one inverter is 12kVA, and the maximum AC LOAD power of six inverters is 72kVA. Copyright © EPEVER... -
Page 52: Afci Setup
Note: A dedicated meter for parallel operation is required (Chint DTSU666 split-phase rail- mounted meter, equipped with 2 CTs). For detailed instructions on parallel operation, please refer to the “EHD Series Parallel Operation Guide” on the EPEVER official website: https://www.epever.com/products/. -
Page 53: On/Off Shutdown Button
Connecting a generator to the Grid port enables grid simulation function. It supports 120/240V split-phase generators. Select “Simulated Grid Mode” in the APP’s generator settings and adjust grid over/under-frequency protection limits according to the specifications of the generator; otherwise, inverter faults may occur. Copyright © EPEVER... - Page 54 However, the system cannot feed power back to the generator. Therefore, the Simulated Grid Mode is primarily suitable for self-consumption and peak shaving modes application. ② Generator + Critical Load + On-Grid Load + Grid –– Generator Recharge Mode Copyright © EPEVER...
- Page 55 On-grid Inverter/ Microinverter This mode is compatible with grid-tie inverters or microinverters to achieve efficient energy utilization. The grid-tie inverter or microinverter's grid port needs to be connected to the GEN port, with the AC coupling mode selected. Copyright © EPEVER...
- Page 56 5 and 6 of the COM2 terminal on the inverter respectively. After configuring the generator parameters via the APP, the inverter can automatically start and stop the generator. The detailed wiring diagram is shown below: COM2 Gen Start/Stop Control Generator Copyright © EPEVER...
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Page 57: Commissioning
Step 7: Set inverter parameters via the APP to ensure it is working normally. Refer to the “EHD Series APP Instructions Manual” for specific configurations. (1) Select Safety Code. (2) Select Grid Type. (3) Select PV Input Mode ("Independent" mode by default). Copyright © EPEVER... -
Page 58: App Settings
(https://hncloud.epsolarpv.com) or APP. Then you will be able to monitor the device and set parameters by PC or APP. Note: For the details of APP setting, please refer to the “EHD Series APP Instructions Manual” on the EPEVER official website: https://www.epever.com/products/. Copyright © EPEVER... -
Page 59: Troubleshooting And Maintenance
Check whether the cross-section and length of the cable meet the requirements. Inappropriate cable specifications may lead to abnormal current transmission and thus trigger faults. Check whether the input, output connections and wiring are in good condition to ensure that Copyright © EPEVER... - Page 60 If the issue remains unresolved, please contact our IslandFault technical support. (Island Fault) When multiple inverters operate in parallel, check whether the wire sequence of the grid or generator Wire Sequence Error interface (L1/L2/N) between the master and slave units is reversed. Copyright © EPEVER...
- Page 61 DciOCP (Inverter DC Component Over Current) HwADFaultVAC (AC Side Voltage Reference Error) HwADFaultIAC (AC Side This is an internal fault of the inverter. Please turn off Current Reference Error) the inverter, and then turn it back on after waiting Copyright © EPEVER...
- Page 62 This is an internal fault of the inverter. Please turn off the inverter, and then turn it back on after waiting RefluxOverLoad for 5 minutes to check if the fault disappears. (Anti-backfeeding Overload) If the issue remains unresolved, please contact our technical support. SwBusOVP (Bus Average Overvoltage) Copyright © EPEVER...
- Page 63 5 minutes to check if the fault disappears. PvOVP If the issue remains unresolved, please contact our (PV Overvoltage) technical support. SwPvOCPInstant (PV Peak Over Current) HwPVOCP (PV Hardware Over Current) Copyright © EPEVER...
- Page 64 This is an internal fault of the inverter. Please turn off the inverter, and then turn it back on after waiting AFCICommFault for 5 minutes to check if the fault disappears. (AFCI Communication Fault) If the issue remains unresolved, please contact our technical support. Copyright © EPEVER...
- Page 65 (Frequency Loading) Ensure the inverter is installed in a cool, well- OverTempDerating ventilated area (do not install the inverter in direct (Over Temperature Derating) sunlight). BatLowVoltageAlarm Check whether the battery voltage is too low. (Battery Low Voltage Alarm) Copyright © EPEVER...
- Page 66 Permanent Fault) unrecoverAcOCPInstant (Inverter Peak Over Current Permanent Fault) unrecoverAFCIFault (AFCI Permanent Fault) BMS OVP This is an internal fault of the lithium battery. Please (BMS Overvoltage Alarm) turn off the inverter and lithium battery, and then Copyright © EPEVER...
- Page 67 This is an internal fault of the inverter. Please turn off the inverter, and then turn it back on after waiting EEPROMFault for 5 minutes to check if the fault disappears. (EEPROM Error) If the issue remains unresolved, please contact our technical support. FlashFault (FLASH Error) Copyright © EPEVER...
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Page 68: Routine Maintenance
When the inverter can no longer be used and needs to be discarded, please dispose of the inverter in accordance with the electrical waste disposal requirements specified by the current country/region. The inverter should not be treated as household waste. Copyright © EPEVER... - Page 69 When the battery voltage goes higher than the overvoltage Battery overvoltage disconnect voltage, the PV and grid will automatically stop charging the battery to prevent overcharging damage. Copyright © EPEVER...
- Page 70 Inverter overload (off- operating after 300s after 60s immediately grid) Note: The output is recovered automatically after a delay time of 120s. The inverter stops working after the 4th protection and can resume working after resetting or restarting. Copyright © EPEVER...
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Page 71: Technical Specifications
Number of Strings per MPPT AC Output (On-grid) Maximum Output Power (VA) 6,000 8,000 10,000 12,000 Rated Output Voltage (V) L1/L2/N/PE 120/240 (208V 2/3 phase) Rated Output Frequency (Hz) 50/60 Maximum Output Current (A) 33.3 41.7 Maximum Input Current (A) 66.6 Copyright © EPEVER... - Page 72 L1/L2/N/PE 120/240 Rated Input Current (A) 33.3 41.7 Rated Input Frequency (Hz) 50/60 Efficiency Maximum Efficiency 97.56% 97.66% 97.72% 97.75% European Efficiency 96.7% 96.9% 96.9% 97.0% Maximum Discharge Efficiency 97.0% 96.9% 96.9% 97.1% MPPT Efficiency 99.9% General Info Copyright © EPEVER...
- Page 73 Topology Non-Isolation Standby Losses (W) < 20 Ingress Protection Rating Mounting Method Wall Mounted (1) The maximum input voltage refers to the voltage at an ambient temperature of -30℃. Any changes without prior notice! Version number: V1.0 Copyright © EPEVER...
- Page 76 HUIZHOU EPEVER TECHNOLOGY CO., LTD. +86 - 752-3889706 info@epever.com www.epever.com...
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