Epever ROH5542H User Manual
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Epever ROH5542H User Manual

Epever ROH5542H User Manual

All-in-one energy storage system
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All-in-one Energy Storage System
User Manual
ROH5542H-05X1P20, ROH5542H-10X2P20
ROH5542H-15X3P20, ROH5542H-20X4P20
ROH5542H-25X5P20, ROH5542H-30X6P20

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Summary of Contents for Epever ROH5542H

  • Page 1 All-in-one Energy Storage System User Manual ROH5542H-05X1P20, ROH5542H-10X2P20 ROH5542H-15X3P20, ROH5542H-20X4P20 ROH5542H-25X5P20, ROH5542H-30X6P20...

  • Page 3: Table Of Contents

    Contents Important Safety Instructions..............1 Disclaimers....................6 1 General Information.................7 1.1 Overview............................7 1.2 Appearance..........................10 1.3 Naming rules..........................15 1.4 System components.........................17 2 LCD Display Interface................18 2.1 Indicator............................18 2.2 Buttons............................19 2.3 Home interface...........................20 2.4 Interface............................22 2.4.1 Real-time data interface....................22 2.4.2 User interface........................
  • Page 4 4.4 Operate the Energy Storage System..................65 4.5 Lithium battery sleep and wake up..................68 4.5.1 Lithium battery sleep......................68 4.5.2 Lithium battery wake up....................68 5 Working Modes..................69 5.1 Abbreviation..........................69 5.2 Battery mode..........................69 5.2.1 Scenario A: Both PV and Utility are not available............69 5.2.2 Scenario B: PV is available, but the Utility is not available........

  • Page 5: Important Safety Instructions

    Important Safety Instructions Please keep this manual for future reference. This manual contains all the safety, installation and operation instructions for the All-in-one Energy Storage System (hereinafter referred to as "Energy Storage System"). 1. Explanation of symbols To ensure the user's safety of personal and property while using this product, relevant information is provided in the manual and highlighted with the following symbols.
  • Page 6 4. Safety instructions before installation After receiving the Energy Storage System, please check if there is any damage during transportation. If you find any problem, please contact the transportation IMPORTANT company, our local distributor or our company in time.  When installing or moving the Energy Storage System, please follow the instructions in the manual.
  • Page 7  It is strictly forbidden to connect a transformer or a load with a surge power (VA) exceeding the overload power at the AC output terminal. Otherwise, the Energy WARNING Storage System will be damaged.  Both the Utility input and AC output are of high voltage, do not touch the wiring connection to avoid electric shock.
  • Page 8 It’s dangerous to touch or open the cabinet for maintenance when the equipment is powered off within 10 minutes. WARNING 10. Safety instructions for the maintenance of the Energy Storage System It is recommended to test the Energy Storage System with testing equipment to ensure there is no ...
  • Page 9 Do not use a damaged lithium battery, which may release flammable gas.  Do not use a lithium battery whose warranty period has expired. If lithium batteries are out of service  life, contact a lithium battery recycling company for disposal. Dispose of waste lithium batteries in accordance with local laws and regulations.

  • Page 10: Disclaimers

    Disclaimers The warranty does not apply to the following conditions: Damage caused by improper use or inappropriate environments (It is strictly forbidden to install the  Energy Storage System in the humid, salt spray, corrosive, greasy, flammable, explosive, dust accumulative or other harsh environments). The actual current/voltage/power exceeds the limit value of the Energy Storage System.

  • Page 11: General Information

    1 General Information 1.1 Overview ROH-H-P20 series is an integrated Energy Storage System that combines lithium battery and off-grid energy storage inverter. With IP20 rating, this product is equipped with 1–6 battery packs as standard configuration (up to 12 battery packs, if the battery pack quantity is more than 6, then customization is needed) and 1 off-grid energy storage inverter.
  • Page 12 Features  A new and fully digital All-in-one Energy Storage System with multiple energy management.  Modular and stacked design.  Ultra-thin design to save space.  Unique wall-mounted installation, easy for maintenance.  Built-in lithium iron phosphate battery with high cycle stability and long life cycle. ...
  • Page 13 When the battery charging current > 100A, or the cell temperature < 15℃, or the cell temperature > 45℃, it will automatically enter the charging current limiting mode, and the charging current is limited to 20A. When the battery charging current is < 3A and 18°C ≤ the cell temperature ≤ 42°C, or the charging current limit time exceeds 30 minutes, it will automatically exit the charging current limiting mode.

  • Page 14: Appearance

    1.2 Appearance Overall  Note: The product appearance is illustrated above with the ROH5542H-15X3P20 as an example. Instruction Instruction ❶ ❺ LCD (see chapter 4) Fixed base ❷ ❻ Wall-mounted bracket Side cover ❸ Inverter (off-grid energy storage inverter) ❼...
  • Page 15 The Inverter of the Energy Storage System  Note: The inverter appearance is illustrated above with the HP5542H-AH1050P20 as an example. ❶ ❽ Instruction Instruction ❷ ❾ LCD (see chapter 4) BMS communication port AC output circuit breaker Dry contact port ❸...
  • Page 16 (1) The USB communication port is used for communication between the Energy Storage System and the PC terminal, and for the LCD software upgrades. (2) The Energy Storage System has a built-in BMS-Link module. Connect the lithium battery pack to the BMS communication port of the inverter directly, which can realize the communication between the inverter and the lithium battery BMS.
  • Page 17 Lithium battery pack  Note: The lithium battery pack appearance is illustrated above with the LFP5KWH51.2V-HP20 as an example. ❶ ❼ Instruction Instruction ❷ ❽ Battery positive terminal DIP switch Battery negative terminal Battery status indicator ❸ ❾ Battery parallel communication Battery SOC indicator port (RJ45 port)
  • Page 18 Battery communication ❹ ❿ port—RS232 port (reserved), CAN Battery circuit breaker port (reserved), RS485 port (for communication between battery ❺ ⓫ and the inverter) ❻ ⓬ Dry contact port Grounding screw RESET button Battery pack handle Storage energy specification  The Energy Storage System supports energy expansion ranging from 5.12kWh to 61.44kWh, up to 12 lithium battery packs (equipped with 1–6 lithium battery packs as standard configuration, if the quantity of lithium battery pack is more than 6, then customization is needed).

  • Page 19: Naming Rules

    1.3 Naming rules All-in-one Energy Storage System  Inverter of the Energy Storage System  (1) Regular converter...
  • Page 20 (2) Economic converter Lithium battery  Base (included accessory) ...

  • Page 21: System Components

    1.4 System components Name Picture Quantity Off-grid energy storage inverter 1 PCS (included accessory) Lithium battery pack 1–3 PCS in parallel (included accessories) (optional quantity) Fixed bracket for lithium battery pack 1 Set (included accessory) Battery mounting Subject to actual bracket parallel quantity (Optional accessories)

  • Page 22: Lcd Display Interface

    2 LCD Display Interface Interface  Note: The display screen can be viewed clearly when the angle between the end-user's horizontal sight and the display screen is within 90°. If the angle exceeds 90°, the information on the display screen cannot be viewed clearly. 2.1 Indicator Indicator Status...

  • Page 23: Buttons

    2.2 Buttons Buttons Operation Instruction  Exit the current interface Click  Switch between the home interface and the "Main Table Data Information" interface.  Browsing interface: Up/Down. Click  Parameters setting interface: Increase or decrease the parameter value per step size. Parameters setting interface: Increase or decrease Press and hold the parameter value per 10 times the step size.

  • Page 24: Home Interface

    2.3 Home interface Instruction ❶ Display the system time, current battery type, and charging stage. When the BMS communication is normal, the icon will be shown on the far right, when it is abnormal, the icon will be shown on the same position. ❷...
  • Page 25 Note: When the PV array is charging the battery, the equalizing charging is performed on the 28th of each month by default (the date can be modified). Parallel status icon naming rule:  Note: The master and slave devices are randomly defined.

  • Page 26: Interface

    2.4 Interface 2.4.1 Real-time data interface After powering on the Energy Storage System, the home interface shows up. Click the "ENTER" button to enter the real-time data interface. Click the "ENTER" button to enter the next real-time interface, click the "UP/DOWN" button to browse all parameters on current interface, or click the "ESC" button to return the home interface.

  • Page 27: User Interface

    2.4.2 User interface After powering on the Energy Storage System, the home interface shows up. Click the "ESC" button to enter the "Main Table Data Information" interface. Click the "ENTER" button to enter the next interface, or click the "UP/DOWN" button to browse all parameters on current interface. “User Data Setup”...

  • Page 28: Administrator Interface

    2.4.3 Administrator interface After powering on the Energy Storage System, the home interface shows up. Press and hold the “ENTER” button to enter the password interface. Input the password 0000 correctly to check all parameters or modify them.

  • Page 29: Parameters Setting

    2.5 Parameters setting 2.5.1 Parameters list Enter the “Set Data Navigation” interface according to the instructions in chapter 4.4.3 Administrator interface. Then click the “UP/DOWN” button to select navigation 1–9 for detailed settings. Default parameters and setting ranges are shown in the following table.
  • Page 30 Parameters Default User define User define: DISABLE, ENABLE UnbalanceSet Note: The parameter will only take effect when used in three (Current unbalance DISABLE phase. After performing the “Return FactorySet,” the default value set) is the last modified value and cannot be restored to the factory value.
  • Page 31 Parameters Default User define In the bypass status, when the actual Utility input frequency is lower than this value, the Energy Storage System will be switched UnderFreqDisconct to the inverter output status. (Utility under 40.0Hz User define: 40.0Hz to 58.0Hz, or 40.0Hz to (Utility over frequency frequency disconnect) disconnect minus 0.5Hz), step size: 0.1Hz Note: Take the minimum value between 58.0Hz and (Utility over...
  • Page 32 Parameters Default User define MaxCharginCurrent User define: 5.0A to 100.0A, step size: 0.1A (Battery Max. 100.0A i.e. the maximum allowable charging current at the battery end. charging current) LimitDisChgCurrt User define：10.0A to 250.0A, step size: 0.1A (Battery limit 250.0A i.e. the maximum allowable discharging current at the battery end. discharging current) ComStatus Read-only, "164 indicates abnormal BMS communication, 165...
  • Page 33 Parameters Default User define LwEngyDisRecvr Soc It takes effect after the “ChargeControlMode” is set as “SOC.” (Low energy It cannot be set separately (equals to the disconnect recover "LwEgyDnctRecvrSoc"). Soc) It takes effect after the “ChargeControlMode” is set as “SOC.” UnderEngyAlarmSoc User define: 10%–35%, or 10% to (Low energy disconnect (Under energy alarm...
  • Page 34 Parameters Default User define BATOverTemp User define: (Battery over temperature protect recover plus 50.0℃ (Battery over 5℃）to 60.0℃，step size: 0.1℃ temperature protect) BATOverTempRecovr User define: 30.0℃ to (Battery over temperature protect (Battery over 45.0℃ recover minus 5℃), step size: 0.1℃ temperature protect recover)
  • Page 35 Parameters Default User define User define: ALL SINGLE, ALL MULTIPLE When two arrays are independently input, the value shall be set to "ALL SINGLE.” When two PV arrays are connected in parallel as a single input to the Energy Storage System (the PV PV Mode ALL SINGLE terminals need to be paralleled externally), the value shall be...
  • Page 36 Parameters Default User define User define: DISABLE, ENABLE When using a DC power to replace the PV array for power PVDCInputSource DISABLE supply testing, it is necessary to set the "PV DC Input Source" as "ENABLE." Otherwise, the Energy Storage System cannot work properly.
  • Page 37 Parameters Default User define User define: 1–3600 seconds, step size: 1 second (Note: When setting this value, press and hold the "UP/DOWN" button to increase/decrease the value by 100*step size, i.e. 100 seconds.) Log Data Interval 60Sec Set the time interval of the historical data (only refers to the voltage, current and other data stored regularly, excluding the historical faults.
  • Page 38 Parameters Default User define User define: 1C, 3C This value can be obtained by checking the battery label and is only BATT Dischage effective after setting the “BMSCurent Select” as "VIRTUAL_BMS." (Batery charging and When this parameter is set to "3C," the Energy Storage System discharging controls the charging and discharging with the maximum limiting coefficient)
  • Page 39 Parameters Default User define BoostCharginVolt (Boost charging 57.1V voltage) FloatChagingVolt (Float charging 54.4V Read-only voltage) The Energy Storage System automatically assigns control voltage subject to the selected battery type, and the values cannot be LowVoltReconect (Low voltage reconnect 52.0V modified. voltage) LowVoltDisconect (Low...

  • Page 40: Battery Work Modes

    Parameters Default User define FloatChagingVolt User define: Boost voltage reconnect voltage < Float charging (Float charging 54.4V voltage ≤ Boost charging voltage, step size: 0.1V voltage) BoostRecnectVolt User define: Low voltage reconnect voltage < Boost voltage (Boost voltage 53.3V reconnect voltage < Float charging voltage, step size: 0.1V reconnect voltage) LowVoltReconect (Low User define: Low voltage disconnect voltage <...
  • Page 41 1. Press and hold “ENTER” button 2. Input the correct password and 3. Enter “BMS DATA” interface. on the home interface to enter the press “ENTER” button. password input interface. 4. Press “Enter” button again to 5. Press “Enter” button for the last 6.

  • Page 42: Battery Voltage Control Parameters (Smart)

    10. Modify voltage control 11. After parameter setting 12. Press “UP/DOWN” button to values based on the actual situation. completed, press “ESC” button to select “ChargeControlMode.” return to “Set Data Navigation” Press “ENTER” button to enter interface. Press “UP/DOWN” button parameter setting interface and set to select “...

  • Page 43: Battery Voltage Control Parameters (Expert)

    2.5.4 Battery voltage control parameters (Expert) After setting the “BAT Set Mode” as “Expert”, all battery voltage control parameters can be modified. Battery type Voltage control LFP16S User define parameters OverVoltDiscnect (Over voltage 59.2V 42.8–64V disconnect voltage) Charging limit voltage 58.4V 42.8–64V OverVoltReconect...

  • Page 44: Time Setting

    2.5.5 Time setting Enter the "Set Data Navigation" interface according to chapter 4.4.3 Administrator interface. Then press "UP/DOWN" button to select "7. Sys DataTime Setup", and press "ENTER" button to enter the system time setting interface. On the system time setting interface, press "ENTER"...

  • Page 45: Installation

    3 Installation 3.1 Attention Please read the manual carefully to familiarize yourself with the installation steps. Before unpacking, check the outer packaging for visible damage such as holes, cracks, or other  signs of possible internal damage, and check the equipment model. If there is any packaging defect or the equipment model is not what you requested, do not unpack the product and contact your dealer as soon as possible.

  • Page 46: Prepare Installation Tools

    0℃ to +50℃ for charging; -20℃ to +50℃ for discharging (the optimal working temperature is 25±2℃). Frequent exposure to extreme temperatures may reduce the performance and life of lithium batteries.  Keep the lithium battery away from any metal objects, which may cause a short circuit of the lithium battery.

  • Page 47: Determine The Installation Position

    Type Installation and protective tools Personal protective equipment Determine the installation position During installation, ensure that there are no other devices, flammable or explosive materials around the Energy Storage System. Reserve adequate space for heat dissipation and safety isolation (There should be at least 1,000mm of space left above and on the left and right sides of the Energy Storage System).

  • Page 48: Install The Energy Storage System

    3.4 Install the Energy Storage System The following installation process is illustrated using the 15.36kWh Energy Storage System as an example. The installation method for other Energy Storage Systems of different energy is the same, for example, with 1 lithium battery pack for the 5.12kWh Energy Storage System, with 2 lithium battery packs for the 10.24kWh Energy Storage System, and 6 batteries packs for the 30.72kWh Energy Storage System.
  • Page 49 Install by fixed base (included accessories)  ❷ Align the first battery pack with the ❶ Place the fixed base on a level floor and locating pins and place it on the fixed base. close to a wall that meets the installation requirements.
  • Page 50 ❺ (Optional) When more than 3 battery packs are connected, 2 columns need to be installed (a single fixed base can only withstand up to 3 battery packs), the two columns of battery packs are connected through the battery positive and negative power cables, and the RS485 communication cable, please refer to 6.2 Internal Wiring of the Energy Storage System.
  • Page 51 Install by wall-mounted bracket (optional accessories)  ❶ Prepare the battery mounting bracket and the inverter mounting bracket. Inverter mounting bracket (1 set) Battery mounting bracket (subject to actual battery pack quantity) ❷ Drill holes in the wall at suitable positions according to the mounting template below (the mounting template is illustrated below with the example of 3 battery packs + the inverter).
  • Page 52 ❹ Install the rest battery packs and the ❸ Use 4PCS M8*50 expansion bolts to fix inverter in sequence on the wall. the battery mounting bracket to a wall that meets the installation requirements. Inverter mounting bracket Battery mounting bracket 3 Battery mounting bracket 2 Battery mounting bracket 1 Battery mounting bracket 1...
  • Page 53 ❽ (Optional) When more than 3 battery packs are ❼ Install the side cover. connected, it is recommended to install them into 2 columns (to avoid high stacking, which is inconvenient for maintenance in the future ), the two columns of battery packs are connected through the battery positive and negative power cables, and the RS485 communication cable, please refer to 6.2 Internal Wiring of the Energy...

  • Page 54: Electrical Connection Of The Energy Storage System

    4 Electrical Connection of the Energy Storage System Attention  Before electrical connection, ensure that the inverter power switch, PV input switch, battery circuit breaker and all the switches connected to the Energy Storage System are set to OFF or disconnected. Otherwise, the high voltage of the Energy Storage System may result in electric shocks.

  • Page 55: Wire And Circuit Breaker Size

    4.1 Wire and circuit breaker size The wiring and installation methods should comply with national and local electrical code regulations. Recommended PV array wire and circuit breaker size  Since the PV array output current varies according to the PV module's type, connection method and sunlight angle, the minimum PV wire size can be calculated by the PV array Isc (short circuit current).

  • Page 56: Internal Wiring Of The Energy Storage System

    For the battery, the recommended wire size is selected according to the conditions that its terminals are not connected to any additional Energy Storage System. CAUTION Recommended AC output wire size  Recommended load wire Recommended circuit Model size breaker size HP5542F-AH1050P20 /10AWG 2P—40A...
  • Page 57 ❷ Connect the battery power cables (red+, black-). Battery Battery negative positive cable cable...
  • Page 58 ❸ Connect the parallel communication cable between the inverter and batteries (RJ45 communication cable). Parallel communication cable between the inverter and batteries...
  • Page 59 ❹ Connect parallel communication cable for multiple batteries (RJ45 communication cable). Parallel communication cable for multiple batteries...
  • Page 60 ❺ Connect the PV connection cable to the designated position of the Energy Storage System. PV connection cable...
  • Page 61 ❻ (Optional) When multiple battery packs are used in parallel, you need to set the communication address of battery pack through the DIP switch of the BMS. The communication address can be set to any number within 1–15 and cannot be repeated. However, there must be a battery pack set to 1 (i.e.
  • Page 62 ❼ (Optional) When more than 3 battery packs are connected, it is recommended to install them into 2 columns, the two columns of battery packs are connected through the battery positive and negative power cables, and the RS485 communication cable.

  • Page 63: External Wiring Of The Energy Storage System

    4.3 External wiring of the Energy Storage System Connect the Energy Storage System in the order of “❶Ground > ❷Load > ❸PV > ❹ or Generator > ❺Optional accessories (communication modules),” and disconnect the Energy Utility Storage System in the reverse order. Grounding The grounding terminal of the Energy Storage System must be grounded correctly and reliably, and the cross-sectional area of the grounding wire is required to be consistent with the recommended load wire...
  • Page 65 Connect the AC loads  Risk of high voltage! The AC output can generate very high voltage, disconnect the circuit breaker before wiring and ensure that the poles' leads are connected correctly.  The AC loads shall be determined by the continuous output power of the Energy Storage System.
  • Page 66 Connect the PV modules  Risk of high voltage! The PV array can generate very high voltage, disconnect the circuit breaker before wiring, and ensure that the leads of "+" and "-" poles are WARNING connected correctly.  Do not ground the PV positive or negative poles; otherwise, the Energy Storage System will be damaged.
  • Page 67 Connect the Utility or generator  Risk of high voltage! The Utility input can generate very high voltage, disconnect the circuit breaker or fast-acting fuse before wiring and ensure that the poles’ leads are connected correctly.  If the Utility is connected, the PV and battery cannot be grounded. In contrast, the WARNING Energy Storage System cabinet must be grounded reliably to shield the outside electromagnetic interference effectively and prevent the cabinet from causing...
  • Page 68 Dry contact interface: The dry contact interface can turn on/off the oil generator and is connected parallel with the oil  generator's switch. Working principle:  When the battery voltage reaches the Dry Contact ON Voltage, the dry contact is connected. Its coil is energized.

  • Page 69: Operate The Energy Storage System

    Note: For specific communication module models supported by this system, please refer to the attached accessory list. 4.4 Operate the Energy Storage System Step 1: Check the wiring. Ensure that the positive and negative wiring of the lithium battery and PV module are connected correctly, that the Utility wiring is connected correctly, that the parallel communication cables for the lithium batteries are connected correctly, and that the communication cables between the lithium batteries and the inverter are connected correctly.
  • Page 70 OFF/ON button RESET button 1. Activation of lithium battery packs takes more than 40 seconds, please wait for the activation to complete before proceeding to the next step. 2. When multiple lithium battery packs are used in parallel, the communication ID of each lithium battery pack cannot be repeated, and the communication ID of the CAUTION lithium battery pack connected to the inverter must be set to 1, otherwise the...
  • Page 71 difference is less than 0.5V, the battery pack will be automatically integrated into the system. Step 5: Turn on the power switch of the Energy Storage System, the LCD will be lit, indicating the normal system running (the whole system can also be activated by Step 5 when skipping Step 4). Power switch Step 6: Set parameters by the buttons.

  • Page 72: Lithium Battery Sleep And Wake Up

     When supplying power for different AC loads, it is recommended to turn on the load with larger impulse current first. After the load output is stable, turn on the load with smaller impulse current later.  If the Energy Storage System cannot work properly or the LCD/indicator shows an CAUTION abnormality, please refer to chapter 9 Troubleshooting or contact our after-sales personnel.

  • Page 73: Working Modes

    5 Working Modes 5.1 Abbreviation Abbreviation Instruction PV power Load power LOAD Battery voltage Low Voltage Disconnect Voltage Low Voltage Reconnect Voltage Low Energy Disconnect SOC Low Energy Disconnect Recover SOC Auxiliary module OFF voltage (i.e.Utility charging OFF voltage) Auxiliary module ON voltage (i.e. Utility charging ON voltage) Utility Charging OFF SOC Utility Charging ON SOC Battery Max.

  • Page 74: Scenario B: Pv Is Available, But The Utility Is Not Available

    ❷ When any of the following conditions is met, the battery stops supplying the load.  The battery voltage is lower than or equal to the LVD value.  The battery SOC is lower than or equal to the LED value. ...

  • Page 75: Scenario C: Both Pv And Utility Are Available

    ❸ When any of the following conditions is met, the PV and the battery stop supplying power to the load, PV charges the battery only.  The battery voltage is lower than or equal to the LVD value.  The battery SOC is lower than or equal to the LED value.
  • Page 76 Charging Mode: “Solar” Discharging Mode: “BP>PV>BT” The Utility supplies power to the load, and the (C-2) PV charges the battery.   Utility Discharging Mode: “PV>BP>BT” Charging Mode: “Solar prior” “PV>BT>BP” ❶ When the PV power is greater than the load power, the PV charges the battery and supplies extra power to the load.
  • Page 77 Charging Mode: “Solar prior” Discharging Mode: “BP>PV>BT” ❶ When the PV power is greater than the (MCC*V ), the Utility and PV supply power to the load, and the PV charges the battery at the same time. ❷ When the PV power is lower than or equal >...

  • Page 78: Scenario D: The Pv Is Not Available, But The Utility Is Available

    ❷ When the PV power is lower than or equal to the (MCC*V ), the Utility and PV charge the battery, and the Utility supplies power to the load. Discharging Mode: No impact under any Charging Mode: “Utltyprior” mode (C-6) ...
  • Page 79 Discharging Mode: “PV>BP>BT” Charging Mode: “Solar” “ BP>PV>BT” (D-2)   Utility The Utility supplies power to the load. ❶ When any of the following conditions is Charging Mode: “Solar prior” Discharging Mode: “PV>BT>BP” met, the battery supplies the load. ...
  • Page 80 ❷ When any of the following conditions is met, the Utility supplies power to the load and charges the battery simultaneously.  The battery voltage is lower than or equal to the AON value.  The battery SOC is lower than or equal to the UCO value.

  • Page 81: Protections

    6 Protections Protections Instruction When the “PV Maximum Open-circuit Voltage” is less than 360V, the “PV Maximum Input Power” can  PV current/power limiting exceed two times the rated input power. protection When the “PV Maximum Open-circuit Voltage” is greater than or equal to 360V, the “PV Maximum Input ...
  • Page 82 Protections Instruction The load output is turned off immediately when a short circuit occurs. And then, the output is recovered automatically after a delay time of 5s, 10s, and 15s separately (if the recovery is less than 3 times within 5 minutes, it will be recounted).
  • Page 83 Protections Instruction Protections HP5542F-AH1050P20 8,550W≤P˂9,485W 9,485W≤P˂10,585W P≥10,585W HP5542F-AH1050P20E Protect after 30 seconds Protect after 10 seconds Protect immediately Utility bypass overload Note: The output is recovered automatically after a delay time of 5s, 10s, and 15s separately. The Energy protection Storage System stops working after the 4th protection and can resume working after resetting or restarting.

  • Page 84: Troubleshooting

    7 Troubleshooting After the Energy Storage System is powered on, the meter displays the boot interface all the time (unable to enter the home interface) and the red "RUN" indicator flashes. It means the communication with the Energy Storage System is abnormal. When the CAUTION above fault occurs, check whether the communication cable is disconnected.

  • Page 85: Pv Faults

    Fault/Status Error code Indicator Buzzer Solution ① ② BAT OCP (Battery Check if the battery actual charging/discharging current exceeds the over current Err37 set values of "Battery Max. charging current " and "Battery limit protection) discharging current.” BAT DROP Check whether the battery connection is normal, and whether the BMS Err39 (Battery dropout) protection occurs.
  • Page 86 Fault/Status Error code Indicator Buzzer Solution ① ② PV1 OVP (PV1 Intermittent Check if the PV open-circuit voltage is too high (greater than 500V). over voltage Err15 indicator beeps The alarm is cleared when the PV open-circuit voltage is below 490V. protection) red on PV1 OCP (PV1...

  • Page 87: Inverter Faults

    Fault/Status Error code Indicator Buzzer Solution ① ② PV1 PCTO (PV1 pre-charge Err52 Turn off the Energy Storage System first, wait for 5 minutes and then timeout) indicator turn on the Energy Storage System to check if it resumes normal PV2 PCTO (PV2 green on operation.
  • Page 88 Fault/Status Error code Indicator Buzzer Solution ① ② INV OTP (Inverter Ensure the Energy Storage System is installed in a cool and over temperature Err10 well-ventilated place. protection) HARD INV OVP (Inverter hardware Err22 over voltage protection) HARD INV OCP (Inverter hardware Err23 over current...

  • Page 89: Utility Faults

    Fault/Status Error code Indicator Buzzer Solution ① ② Check if the load actual power exceeds the rated power (i.e. the Energy Storage System’s continuous output power), disconnect the INV UVP (Inverter LOAD Intermittent load completely and turn off the Energy Storage System, wait for 5 under voltage Err49 indicator...
  • Page 90 Fault/Status Error code Indicator Buzzer Solution ① ② AC PRECHG OUT (AC Err28 pre-charge timeout) GRID AC RELAY indicator Disconnect the AC input completely and turn off the Energy Storage green on Adhesion (AC System. Wait for 5 minutes and then turn on the Energy Storage relay adhesion.

  • Page 91: Load Faults

    7.5 Load faults Fault/Status Error code Indicator Buzzer Solution ① ② LAOD CURR OFFSET ERR Err33 (Load current Disconnect the load completely and turn off the Energy Storage offset error) System, wait for 5 minutes and then turn on the Energy Storage OVERLOAD Err48 System to check if it resumes normal operation.

  • Page 92: Other Faults For Single Energy Storage System

    7.6 Other faults for single Energy Storage System Fault/Status Error code Indicator Buzzer Solution ① BUS OVP (DC bus over voltage Err0 Disconnect the Energy Storage System completely. Wait for 5 protection) minutes and turn off the Energy Storage System to check if it BUS UVP (DC resumes normal operation.
  • Page 93 Fault/Status Error code Indicator Buzzer Solution ① PUSH DRV ERR (Push driver Err38 error) APS ERR Disconnect the Energy Storage System completely. Wait for 5 (Auxiliary power Err40 minutes and turn off the Energy Storage System to check if it supply error) resumes normal operation.

  • Page 94: Bms Communication Faults

    7.7 BMS communication faults Error Fault/Status Indicator Buzzer Solution ② code ① BMS OVP (BMS over voltage Err66 protection) BMS Chage TEMP ERR (BMS Err68 charge temperature error) BMS UVP (BMS under voltage Err69 Intermittent Check the BMS communication status or BMS setting parameters. protection) beeps DisChageTEMP...

  • Page 95: Maintenance

    8 Maintenance To maintain long-term working performance, it is recommended to have the following items inspected twice a year. Make sure the airflow around the Energy Storage System is not blocked and remove dirt or debris  from the fan. Check whether the exposed wires have been damaged by sunlight, friction with other surrounding ...

  • Page 96: Specifications

    9 Specifications Model ROH5542H-05X1P20 ROH5542H-10X2P20 176VAC to 264VAC (Default), Utility Voltage 90VAC to 280VAC (Configurable) Utility Frequency 45Hz to 65Hz Maximum Utility Utility input 100A Charging Current Switch Response Time–Inverter to Utility: 10ms Switch Response Switch Response Time–Utility to Inverter (when the load...
  • Page 97 PV Maximum 100A Charging Current MPPT Maximum ≥ 99.5% Efficiency Battery Type Battery Pack 5.12KWH, 51.2V/100AH Battery Pack Quantity Battery Battery Rated 51.2VDC Voltage Battery Energy 5.12KWH 10.24KWH Battery Work Charging: 0℃ to +50℃, discharging：-20℃ to +50℃ Temperature Range <1.0 A No-load Losses (Test condition: Utility, PV and Load are not connected, AC output is ON, fan stops, @48V input)
  • Page 98 Model ROH5542H-15X3P20 ROH5542H-20X4P20 176VAC to 264VAC (Default), Utility Voltage 90VAC to 280VAC (Configurable) Utility Frequency 45Hz to 65Hz Maximum Utility Utility input 100A Charging Current Switch Response Time–Inverter to Utility: 10ms Switch Response Switch Response Time–Utility to Inverter (when the load...
  • Page 99 MPPT Maximum ≥ 99.5% Efficiency Battery Type Battery Pack 5.12KWH, 51.2V/100AH Battery Pack Quantity Battery Rated Battery 51.2VDC Voltage Battery Energy 15.36KWH 20.48KWH Battery Work Temperature Charging: 0℃ to +50℃, discharging：-20℃ to +50℃ Range < 1.0 A No-load Losses (Test condition: Utility, PV and Load are not connected, AC output is ON, fan stops, @48V input) <...
  • Page 100 Model ROH5542H-25X5P20 ROH5542H-30X6P20 176VAC to 264VAC (Default), Utility Voltage 90VAC to 280VAC (Configurable) Utility Frequency 45Hz to 65Hz Maximum Utility Utility input 100A Charging Current Switch Response Time–Inverter to Utility: 10ms Switch Response Switch Response Time–Utility to Inverter (when the load...
  • Page 101 Battery Type Battery Pack 5.12KWH, 51.2V/100AH Battery Pack Quantity Battery Rated Battery 51.2VDC Voltage Battery Energy 25.6KWH 30.72KWH Battery Work Temperature Charging: 0℃ to +50℃, discharging：-20℃ to +50℃ Range < 1.0 A No-load Losses (Test condition: Utility, PV and Load are not connected, AC output is ON, fan stops, @48V input) <...
  • Page 104 HUIZHOU EPEVER TECHNOLOGY CO., LTD. Tel: +86-752-3889706 E-mail: info@epever.com Website: www.epever.com...

This manual is also suitable for:

05x1p20, roh5542h10x2p2015x3p20, roh5542h20x4p2025x5p20, roh5542h30x6p20

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