Page 1 All-in-one Energy Storage System User Manual ROH5542F-05X1P20C, ROH5542F-10X2P20C ROH5542F-15X3P20C, ROH5542F-20X4P20C ROH5542F-25X5P20C, ROH5542F-30X6P20C...
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 Interface....................18 2.1 Indicators............................ 18 2.2 Buttons............................19 2.3 Home page..........................19 2.4 Real-time data..........................23 2.4.1 PV............................23 2.4.2 Utility..........................24 2.4.3 Energy Storage System....................
Page 4 4.4 Commissioning......................... 67 4.5 Lithium battery sleep and wake up..................69 4.5.1 Sleep..........................69 4.5.2 Wake up..........................69 5 Working Modes..................70 5.1 Abbreviation..........................70 5.2 Battery mode..........................70 5.2.1 Scenario A: Both PV and Utility are not available............70 5.2.2 Scenario B: PV is available, but the Utility is not available........71 5.2.3 Scenario C: Both PV and Utility are available..............72 5.2.4 Scenario D: The PV is not available, but the Utility is 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-F-P20C 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 design, stacked installation, providing easy and independent installation and maintenance.  Built-in lithium iron phosphate battery with high cycle stability and long life cycle. ...
Page 13 The ROH-F-P20C series can achieve single channel and two parallel MPPTs tracking, with the input current ranging from 15A to 30A respectively. When connecting two PV arrays, set the “PV mode” as "SINGLE” when the two PV arrays are independently input; when there are two PV arrays connected in parallel to the Energy Storage System (the PV terminals of the Energy Storage System need to be paralleled externally), set the “PV mode”...
Page 14: Appearance
1.2 Appearance Overall  Note: The product appearance is illustrated above with ROH5542F-30X6P20C. Instruction Instruction ❶ ❺ LCD (see chapter 2) Base ❷ ❻ Inverter (off-grid energy storage inverter) Universal wheel x4 ❸ Detachable cooling fan ❼ Lithium battery pack (with optional quantity Back cover (subject to the quantity of ❹...
Page 15 The Inverter of the Energy Storage System  Note: The inverter appearance is illustrated above with HP5542F-AH1050P20C. ❶ ❽ Instruction Instruction ❷ ❾ LCD (see chapter 2) AC input terminal ❸ ❿ Parallel connection port (DB9) PV input terminal ❹ ⓫...
Page 16 (2) Dry contact specification: 1A@250VAC Function: The dry contact port is connected with the oil generator switch in parallel and can turn on/off the oil generator. (3) Remote monitoring is achieved by connecting the WIFI or TCP modules via RS485 communication port.
Page 17: Lithium Battery Pack
Lithium battery pack  Note: The lithium battery pack appearance is illustrated above with LFP5KWH51.2V-FP20. ❶ ❼ Instruction Instruction ❷ ❽ Battery positive terminal Battery SOC indicator Battery circuit breaker Dry contact port ❸ ❾ Battery parallel communication Battery status indicator port (two RJ45 ports) ❹...
Page 18 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). 6 lithium battery packs, 30.72kWh 1 lithium battery pack, 5.12kWh...
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 ...
Page 21: System Components
Base (included accessory)  1.4 System components Name Picture Quantity Off-grid energy storage inverter 1 PCS (included accessory) Lithium battery pack 1–6 PCS in parallel (included accessories) (optional quantity) Mobile base for lithium battery pack 1 PCS (included accessory) Fixed bracket for lithium battery pack 4 PCS (Optional accessories)
Page 22: Interface
2 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 Indicators Indicator Status...
Page 23: Buttons
2.2 Buttons Buttons Operation Description  Exit the current interface and return to the home Click page.  Turn on/off the load switch.  Click this button and the following prompt message pops up, click “ON/OFF” to turn on/off the load switch.
Page 24 Instruction ❶ Displays the system time. Please set the system time correctly before operation. Displays the battery discharge modes. For specific parameter settings, please refer to 2.5.1 List > 5. System. ❷ PV > BP > BT PV > BT > BP BP >...
Page 25 Displays utility input voltage and current.  The arrow shows the energy flow direction of the utility input.  The arc indicates the percentage of current utility consumption  power to rated AC output power of the Energy Storage System. ❼...
Page 26 Display the battery voltage and current in charging and discharging state.  The arrow indicates the energy flow direction of the battery.  Displays the working status of the battery: indicates that the battery  is charging and discharging normally, indicates that working in battery-free mode.
Page 27: Real-Time Data
2.4 Real-time data 2.4.1 PV Touch on the home page to enter the PV real-time data interface, the information displayed is as follows: Icon Description 1. PV input voltage and current 2. PV energy flow indication 3. PV real-time power Note: If there is only one PV input, it only shows one PV icon here.
Page 28: Utility
2.4.2 Utility Touch on the home page to enter the utility real-time data interface. The information displayed is as follows: Icon Description 1. Utility input voltage, current and frequency 1. Utility energy flow indication 3. Utility consumption power (with arrow pointed to the Energy Storage System) Swipe up/down in this area to view all the settable utility parameters.
Page 29: Load
Touch on the home page to enter the Energy Storage System real-time data interface, which displays the current product series, product model, SN, LCD PCB version, LCD firmware version and other product information. Click to show other parameters. 2.4.4 Load Touch on the home page to enter the load real-time data interface.
Page 30 Touch on the home page to enter the battery real-time data interface. The information displayed is as follows: Icon Description 1. Click to display Other Setting, BMS Data, Voltage Setting, and SOC Setting in turn. 2. Click NEXT Page to display all the information of the current page. To display the battery SOC value, click this icon to display the following BMS State interface, for more detailed data definition, please refer to 10.2 Appendix 2 Battery state instruction.
Page 31: Error Code
1. The number 27 indicates the current battery protocol. 2. BMS indicates the setting value of "BMS (BMS Enable)," gray indicates disable, and green indicates enable. 3. VOL indicates the setting value of "BMSVolt (BMS Voltage Control)," gray indicates disable, and green indicates enable. 4.
Page 32: Parameter Settings
2.5 Parameter settings 2.5.1 List 2. Enter the password input interface, enter the 1. Click at the upper right corner on the correct password (the initial password is 000000 home page. by default), and click to enter the parameter setting interface. The parameter setting interface includes: PV (PV parameter setting), Charge (battery charge control parameter setting), Grid (Grid parameter setting), Load (Load parameter setting), System (System parameter setting), Others (Other parameters setting) and Set Password.
Page 33 Click to exit the current interface safely and return to the home page (after exiting in this way, you need to re-enter the password to enter the parameter setting interface). 1. PV Click PV on the parameter setting interface to enter the PV parameter setting interface. The following information is displayed: Icon Description...
Page 34 After the parameter setting is complete, click to confirm the set value. After all the parameters on the current page are set, click issue new parameter value, and the following message box will pop Click Save to complete the parameter issue. Default value and setting range for PV parameters are listed in the table below: ...
Page 35 2. Charge Click Charge on the parameter setting interface to enter the battery charge control parameter setting interface. The following information is displayed: Icon Instruction Default values and configurable ranges for battery voltage/SOC control parameters. Swipe up/down to view all the parameters on the current page.
Page 36 CLV (Charging Limit User define: Equalize Charging Voltage < Charging Limit 58.4V Voltage) Voltage < Over Voltage Disconnect Voltage User define: 9*N ≤ Over Voltage Reconnect Voltage ≤ OVR (Over Voltage 58.4V (Over Voltage Disconnect Voltage minus 0.1*N) Reconnect Voltage) Note: N=Rated battery voltage/12.
Page 37 Under the charging mode of "Solar > Grid," the utility charges the battery if the battery voltage is lower than this AUX ON (Auxiliary value. 51.0V module ON voltage) User define: Low Voltage Disconnect Voltage ≤ Auxiliary module ON voltage ≤ (Auxiliary module OFF voltage minus 0.2*N) (N=Rated battery voltage/12) 2.2 SOC Control Strategy It takes effect after the "BCCMode"...
Page 38 It takes effect after the "BCCMode" is set as "SOC." When the battery SOC is lower than this value, the battery will stop discharging. DP (Discharging User define: 0 to 30% Protection SOC) Note: When the battery SOC reaches “DP” value, the battery icon turns red, warning that discharging protection occurs.
Page 39 Icon Description Default values and configurable ranges for grid setting parameters. Swipe up/down to view all the parameters on the current page. indicates that the parameter value can be customized (If the parameter is read-only, there is no icon). Click to display other configurable interfaces except the current interface (Note: The Grid configurable parameters are only in the current interface, and there is no response when clicking the button.) Note: For the content and operation methods of the parameter setting area on the right, please refer to...
Page 40 In the bypass state, when the actual utility input frequency is lower than this value, the Energy Storage System will be UFD (Utility Under switched to the inverter output state. Frequency Disconnect 40.0Hz User define: 40.0Hz to 58.0Hz, or 40.0Hz to (Utility Over Frequency) Frequency Disconnect Frequency minus 0.5Hz).
Page 41 Default value and setting range for load parameters are listed in the table below:  Parameter Default User define 4. 1 Load Setting Parameter INVOVL (Inverter Output 220V User define: 220V / 230V Voltage Level) User define: 50Hz / 60Hz Note: When the Utility power is connected and the Utility frequency is detected, the output frequency will be in accordance with the Utility frequency in the...
Page 42 Click System on the parameter setting interface to enter the system parameter setting interface. The following information is displayed: Icon Instruction Default values and configurable ranges for system setting parameters. Swipe up/down to view all the parameters on the current page. indicates that the parameter value can be customized (If the parameter is read-only, there is no icon).
Page 43 LBADC (Local Battery User define: 10.0A to 250.0A Available Discharging 250.0A The battery maximum discharge current for Current) HP5542F-AH1050P20C/HP5542F-AH1050P20EC BECT (Battery Equalize 120 m User define: 10minutes to 180 minutes Charging Time) BECD (Battery Equalize 28 D User define: 1–28 Charging Date) BBCT (Battery...
Page 44 User define: S (Single), A (Phase A), B (Phase B), C (Phase C) Note: After the "INVPSet" is changed, the Energy Storage System must be turned off for 10 seconds INVPSet (Inverter Phase before restarting. Enter the "System > Advanced Setting) Battery Properties"...
Page 45 User define: 5.0A to 100.0A UACC (Utility Available The maximum current at the battery end when the 100.0A Charging Current) utility charges the battery for HP5542F-AH1050P20C/HP5542F-AH1050P20EC. User define: Solar (Solar only), Solar > Grid (Solar priority), Solar+Grid, Grid > Solar (Grid priority). CMode (Charging Mode) Solar+Grid Note: For detailed working modes differences, please...
Page 46 User define: VOL (Voltage), SOC VOL: The battery voltage control parameters take effect after setting this value as "VOL." SOC: The SOC parameters take effect after setting this value as "SOC." BCCMode (Battery Note: If "SOC" is selected, the battery needs to go Charging Control Mode) through several full charge and discharge cycles, and the battery capacity must be set correctly.
Page 47 5.4 System Time Setting 5.5 Local Parameters User define: 50% to 100% LCD BRT (LCD 100% It indicates the LCD brightness when operating the Brightness) LCD. User define: 6S to 60S TODelay (Idle Timeout When there is no operation on the LCD, and the set 15 S Delay) "TODelay"...
Page 48 Interval) Set the interval for historical records (only refers to the voltage, current and other data stored regularly, excluding the historical faults. These historical data can be exported by the Solar Guardian PC software or Website.) 6. Others Click Others on the parameter setting interface to enter other parameters setting interface. The following information is displayed: Click to switch the page and set the relevant parameters directly by touching the screen.
Page 49 User define: ECO Mode, Normal Mode When set as "ECO Mode," the Energy Storage System will enter the low power mode to reduce the system consumption when certain conditions are met, such as no Low Power Mode ECO Mode PV or utility, and the battery voltage drops to the low voltage disconnect voltage.
Page 50 7. Set password 1. Click Set Password on the parameter 2. Enter original password, password, and click to enter the setting interface enter password modifying interface. interface to re-enter the password. 4. Enter the new password and click 3. Enter the new password again and click to complete password modifying.
Page 51: Battery Work Modes
8. Quick setting of BMS parameters Note: No administrator password is required for the quick setting of BMS parameters, and you can quickly set BMS related parameters (It is a reserved function and cannot be set currently). 2. Enter the password input interface, click 1.
Page 52 Note: The default factory values for the “BMS (BMS Enable), BMSVolt (BMS Voltage Control) and BMSCurr (BMS Current Control)” are listed in the column of “Set value” in the table above. Under normal circumstances, no additional settings is required. But if you modified the default values of these three parameters, please reset them according to the table above.
Page 53: Battery Voltage Control
5. Click to switch to the "Charge and Discharge Management" interface and set "BCCMode (Battery Charging Control Mode), BMS (BMS Enable), BMSVolt (BMS Voltage Control) and BMSCurr (BMS Current Control)." After the settings are complete, click to issue new parameter value. After setting the "BMSCurr (BMS Current Control)"...
Page 54 Battery type Voltage control LFP16S User define parameters Under Voltage Warning Voltage 49.6V 42.8–64V LowVoltDisconect (Low voltage 46.4V 42.8–64V disconnect voltage) Discharging Limit Voltage 44.0V Fixed value When setting the lithium battery voltage control parameters, the following rules must be obeyed. Over Voltage Disconnect Voltage <...
Page 55: 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 56: Preparing Installation Tools
 If the ambient temperature exceeds the working range of the lithium batteries, the lithium batteries will stop working. Lithium batteries working temperature range: 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.
Page 57: Determining The Installation Position
Type Installation and protective tools Personal protective equipment Determining 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 300mm of space left above and on the left and right sides of the Energy Storage System).
Page 58: Installing The Energy Storage System
3.4 Installing the Energy Storage System Stack and mount the lithium batteries and inverter on the base from bottom to top. The following installation process is illustrated using the 10.24kWh 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 59 ❶ Align the first battery pack with the locating ❷ Install the rest battery packs and the inverter pins on the floor support. from bottom to top. Battery pack handle Locating pin Locating pin Locating pin Floor support Locating pin ❸...
Page 60: Electrical Connection
4 Electrical Connection 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 61: Preparing Cables And Circuit Breakers
4.1 Preparing cables and circuit breakers The wiring and installation methods should comply with national and local electrical code regulations. Recommended PV array cable and circuit breaker specifications  Since the PV array output current varies according to the PV module's type, connection method and sunlight angle, the minimum PV cable specifications can be calculated by the PV array Isc (short circuit current).
Page 62: Internal Wiring
For the battery, the recommended cable specifications is selected according to the conditions that its terminals are not connected to any additional Energy Storage CAUTION System. Recommended AC output cable specifications  Recommended load cable Recommended circuit Model specifications breaker specifications HP5542F-AH1050P20C /10AWG 2P—40A...
Page 63 ❸ Connect the PV connection cable and ❷ Connect the battery power cables communication module to the designated (red+, black-) parallel position of the Energy Storage System. communication cables for multiple devices (RJ45 communication cable) in accordance with the following position. PV connection cable Communication module Parallel communication...
Page 64 ❹ (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 65: External Wiring
4.3 External wiring 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 cable is required to be consistent with the recommended load cable specifications, and the grounding connection point shall be as close as possible to the Energy Storage System, and the shorter the grounding cable, the better.
Page 66  The cabinet is connected to earth through the earth rail, along with the  Grounding AC input and output's PE (Protective Earth) terminal.
Page 67 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 68 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 69 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 70 Working principle:  When the battery voltage reaches the Dry Contact ON Voltage, the dry contact is connected. Its coil is energized. The dry contact can drive loads of no more than 125VAC/1A, 30VDC/1A. The default values of the Dry Contact ON Voltage and the Dry Contact OFF Voltage of the Energy Storage System are different, subject to battery types.
Page 71: Commissioning
4.4 Commissioning 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 72 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 communication will fail.
Page 73: Lithium Battery Sleep And Wake Up
Connect the load circuit breaker, the PV array circuit breaker and the Utility circuit breaker in sequence. After the AC output is normal, turn on the AC loads one by one. Do not turn on all the loads simultaneously to avoid protection action due to a large transient impulse from the current. The Energy Storage System will perform normal work according to the set working mode.
Page 74: Working Modes
5 Working Modes 5.1 Abbreviation Abbreviation Description PV power Load power LOAD Battery voltage Low Voltage Disconnect Voltage Low Voltage Reconnect Voltage Discharging Protection SOC Discharging Protection Reconnect SOC AUX OFF Auxiliary module OFF voltage (i.e.Utility charging OFF voltage) AUX ON Auxiliary module ON voltage (i.e.
Page 75: 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 DP value. ...
Page 76: 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 DP value.
Page 77 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” or 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 78 Charging Mode: “Solar prior” Discharging Mode: “BP>PV>BT” ❶ When the PV power is greater than the (LBACC*V ), the Utility and PV supply power to the load, and the PV charges the battery at the same time. > LBACC*V ≤ LBACC*V ❷...
Page 79: Scenario D: The Pv Is Not Available, But The Utility Is Available
Discharging Mode: impact Charging Mode: “Utly & solr” ❶ When the PV power is greater under any mode than the (LBACC*V ), the Utility and PV supply power to the load, and charges battery (C-5) simultaneously.  > LBACC*V ≤ LBACC*V ...
Page 80 ❷ When any of the following conditions is met, the Utility supplies power to the load.  The battery voltage is lower than or equal to the LVD value.  The battery SOC is lower than or equal to the DP value.
Page 81 Discharging Mode: “PV>BP>BT” or Charging Mode: “Solar prior” ❶ When any of the following conditions is BP>PV>BT” met, the Utility supplies power to the load.  The battery voltage is higher than or equal to the AUX OFF value.  The battery SOC is greater than or equal (D-4) to the UAC OFF value.
Page 82: Protections
6 Protections Protections Instruction PV current/power limiting The PV input power cannot exceed 2 times the rated PV power. protection PV short circuit protection When the PV is not charging and a short circuit occurs, the Energy Storage System will not be damaged. Utility input over voltage When the Utility voltage exceeds the set value of “UOD (Utility over voltage disconnect voltage),”...
Page 83 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 84 Protections Instruction Protections HP5542F-AH1050P20C 8,550W≤P˂9,485W 9,485W≤P˂10,585W P≥10,585W HP5542F-AH1050P20EC 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 85: 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 86 Fault/Status Error code Indicator Buzzer Solution Check if the battery actual charging/discharging current exceeds the set Battery Er37 values of "LBACC (Local Battery Available Charging Current)" and Overcurrent "LBADC (Local Battery Available Discharging Current)." Battery Cable Check whether the battery connection is normal, and whether the BMS Er39 Disconnected protection occurs.
Page 87: Pv Faults
7.2 PV faults Fault/Status Error code Indicator Buzzer Solution PV Module 1 Over Er13 Temperature PV indicator Ensure the Energy Storage System is installed in a cool and green on well-ventilated place. PV Module 2 Over Er14 Temperature PV indicator Intermittent Check if the PV open-circuit voltage is too high (greater than 500V).
Page 88: Inverter Faults
7.3 Inverter faults Fault/Status Error code Indicator Buzzer Solution Check if the total load power exceeds the “Inverter Rated Power (please refer to Chapter 9 Specifications),” disconnect the load LOAD Inverter Output Intermittent completely and turn off the Energy Storage System, wait for 5 Er02 indicator Overcurrent...
Page 89 Fault/Status Error code Indicator Buzzer Solution Inverter Temp LOAD Turn off the Energy Storage System, wait for 5 minutes and then turn Sensor Er45 indicator on the Energy Storage System to check if it resumes normal Disconnected green ON operation. If it is still abnormal, please contact our technical support. Check if the total load power exceeds the “Inverter Rated Power (please refer to Chapter 9 Specifications),”...
Page 90: Utility Faults
7.4 Utility faults Fault/Status Error code Indicator Buzzer Solution Check if the Utility voltage is beyond “UOD (Utility Over Voltage GRID Disconnect Voltage),” disconnect the Utility input completely and turn Utility Intermittent Er08 indicator off the Energy Storage System. Wait for 5 minutes and then turn on Overvoltage beeps red on...
Page 91: Load Faults
7.5 Load faults Fault/Status Error code Indicator Buzzer Solution Load Current Er33 Disconnect the load completely and turn off the Energy Storage OFFSET Error System, wait for 5 minutes and then turn on the Energy Storage Load Over Load Er48 LOAD Intermittent System to check if it resumes normal operation.
Page 92 Fault/Status Error code Indicator Buzzer Solution Boost Drive Error Er38 Auxiliary Power Disconnect the Energy Storage System completely. Wait for 5 Er40 Supply Abnormal minutes and connect the battery only, then turn on the Energy Storage System to check if it resumes normal operation. If it is still Environment abnormal, please contact our technical support.
Page 93: Bms Communication Faults
7.7 BMS communication faults Fault/Status Error code Indicator Buzzer Solution BMS Overvoltage Er66 BMS Charging Er68 Temp Abnormal Er69 Undervoltage Check the BMS communication status or BMS setting parameters. BMS Discharging Er71 Temp Abnormal Communication Er74 Failure...
Page 94: 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 cables have been damaged by sunlight, friction with other surrounding ...
Page 95: Specifications
9 Specifications Model ROH5542F-05X1P20C ROH5542F-10X2P20C 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 96 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 97 Model ROH5542F-15X3P20C ROH5542F-20X4P20C 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 Time power is higher than 100W): 20ms Inverter Rated...
Page 98 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) Others <...
Page 99 Model ROH5542F-25X5P20C ROH5542F-30X6P20C 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 Time power is higher than 100W): 20ms Inverter Rated...
Page 100 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) Others <...
Page 101: Appendix
10 Appendix 10.1 Appendix 1 Abbreviations index Abbreviations Full name Over Voltage Protection Voltage OVPR Over Voltage Protection Reconnect Voltage Solar Setting Under Voltage Protection Voltage Parameter UVPR Under Voltage Protection Reconnect Voltage Over Temperature Protection Temperature OTPR Over Temperature Protection Recovery Temperature Over Voltage Disconnect Voltage Charging Voltage Limit Voltage Over Voltage Reconnect Voltage...
Page 102 Utility Over Voltage Disconnect Voltage Utility Over Voltage Reconnect Voltage Grid Setting ULVD Utility Low Voltage Disconnect Voltage Parameter ULVR Utility Low Voltage Reconnect Voltage Utility Over Frequency Disconnect Frequency Utility Under Frequency Disconnect Frequency INVOVL Inverter Output Voltage Level INVOFR Inverter Output Frequency Range Load CL...
Page 103 DMode Discharge Mode ACmode AC Input Mode PVMode PV Mode BCCMode Battery Charging Control Mode BMSProt BMS Protocol BMS Enable BMSVolt BMS Voltage Control BMSCurr BMS Current Control BMSFail BMS Fail Action Battery Connection Method LCD BRT LCD Brightness TODelay Idle Timeout Delay LCDSBRT Standby LCD Brightness...
Page 104: Appendix 2 Battery State Instruction
10.2 Appendix 2 Battery state instruction 2. Touch the battery SOC icon on the 1. Touch the battery icon on the home battery real-time data interface to enter the page to enter the battery real-time data battery state interface. interface. 3.
Page 105 The detailed data of each interface is as follows: English display Description Green means this state has not occurred, red means this Charging state has occurred. After showing red, the Energy Storage protection System turns off charging. Green means this state has not occurred, red means this Discharge state has occurred.
Page 106 After reading the overvoltage alarm or protection of the single cell, the Energy Storage System turns off charging. MOS Temperature State Normal display is green, abnormal display is red. Abnormal Environment status includes: High temperature alarm, Low temperature Temper State alarm, High temperature protect, Low temperature protect, NTC fault.
Page 108 HUIZHOU EPEVER TECHNOLOGY CO., LTD. Tel: +86-752-3889706 E-mail: info@epever.com Website: www.epever.com...

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