Epever HP3522-AH1250P20SA User Manual
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Epever HP3522-AH1250P20SA User Manual

Inverter/charger
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HP3522-AH1250P20SA
HP3542-AH0650P20SA
HP5542-AH1050P20SA
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Summary of Contents for Epever HP3522-AH1250P20SA

  • Page 1 Inverter/charger User Manual HP3522-AH1250P20SA HP3542-AH0650P20SA HP5542-AH1050P20SA...

  • Page 2: Table Of Contents

    Contents Important Safety Instructions..............1 Disclaimers....................5 1 General Information.................6 1.1 Overview............................6 1.2 Appearance...........................8 1.3 Naming rules..........................11 1.4 Connection diagram......................... 12 2 Interface....................14 2.1 Indicator............................14 2.2 Buttons............................15 2.3 Home screen..........................16 2.4 Interface............................17 2.4.1 Real-time data interface....................17 2.4.2 User interface........................
  • Page 3 3.2 Wire and breaker size.......................49 3.3 Mounting the inverter/charger....................50 3.4 Wiring the inverter/charger.....................52 3.5 Operate the inverter/charger....................60 4 Working modes..................62 4.1 Abbreviation..........................62 4.2 Battery mode..........................62 4.2.1 Scenario A: Both PV and Utility are not available............62 4.2.2 Scenario B: PV is available, but the Utility is not available........63 4.2.3 Scenario C: Both PV and Utility are available..............64 4.2.4 Scenario D: The PV is not available, but the Utility is available........

  • Page 4: Important Safety Instructions

    Important Safety Instructions Please reserve this manual for future review. This manual contains all the safety, installation, and operation instructions for the HP-AHP20SA series inverter/charger ("inverter/charger" referred to as this manual). 1. Explanation of symbols To enable users to use the product efficiently and ensure personal and property safety, please read the related words carefully when you encounter the following symbols in the manual.
  • Page 5 4. Safety cautions before installation When receiving the inverter/charger, please check if there is any damage in transportation. If you find any problem, please contact the transportation company or CAUTION our company in time.  When installing or moving the inverter/charger, follow the instructions in the manual.
  • Page 6 7. Safety cautions for inverter/charger operation When the inverter/charger works, the shell will generate much heat, and the WARNING temperature is very high. Please do not touch it, and keep it far from the equipment susceptible to high temperature. SURFACE ...
  • Page 7 Improper maintenance of the inverter/charger may cause personal injury or equipment damage;  It is recommended to wear an antistatic wrist strap or avoid unnecessary contact with the circuit  board. The safety mark, warning label, and nameplate on the inverter/charger should be visible, not removed or covered.

  • Page 8: Disclaimers

    Disclaimers The warranty does not apply to the following conditions: Damage caused by improper use or inappropriate environment (it is forbidden to install the  inverter/charger in humid, salt spray, corrosion, greasy, flammable, explosive, dust accumulative, or other severe environments). The actual current/voltage/power exceeds the limit value of the inverter/charger.

  • Page 9: General Information

    1 General Information 1.1 Overview HP-AHP20SA series, upgraded hybrid inverter/chargers that support utility charging, oil generator charging, solar charging, utility output, inverter output, and energy management. It supports parallel operation for multiple units (12 units in standard application, more than 12 units need to be customized) in single phase and three phase, with 220VAC single phase or 380VAC three phase AC output.
  • Page 10  Non-battery mode: simultaneously charging with solar (Main) and Utility (Assist).  Advanced SPWM technology and pure sine wave output. ①  Parallel operation in single phase or three phase for 12 units in standard application  PFC technology reduces the demand on the power grid capacity. ...

  • Page 11: Appearance

    Maximum Voltage(V), PV Power(W), Utility Voltage(V), Utility Current(A), Utility Frequency(Hz), Utility Power(W), Load Voltage(V), Load Current(A), Load Power(W), Inverter Frequency(Hz), Battery Voltage(V), Battery Current(A), Battery SOC(%), Battery Temperature ( ℃ ), Boost Module Temperature(℃), INV Module Temperature(℃), Maximum BAT Volt(V), Minimum BAT Volt(V). 1.2 Appearance HP3522-AH1250P20SA / HP3542-AH0650P20SA ...
  • Page 12 HP5542-AH1050P20SA ...
  • Page 13 ❶ ❼ Instruction Instruction ⑵ Dry contact interface LCD (see chapter 2) ❷ ❽ RS485 port (RJ45, with isolation Grounding terminal ⑶ design) 5VDC/200mA ❸ ❾ ❹ ❿ AC input port PV terminals ❺ ⓫ AC output port Power switch Utility over-current protector Battery terminals ❻...

  • Page 14: Naming Rules

    Please go to EPEVER official website to check or download the currently supported BMS manufacturers and the BMS parameters. (2) Dry contact specification: 1A@125VAC. Function: The dry contact interface is connected with the generator switch to turn on/off the generator.

  • Page 15: Connection Diagram

    1.4 Connection diagram No battery mode ...
  • Page 16 Battery mode  AC loads shall be determined according to the output power of the inverter/charger. WARNING The load exceeding the maximum output power may damage the inverter/charger.  For different battery types, confirm the relevant parameters before power on. ...

  • Page 17: 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 Indicator Indicator Status...

  • Page 18: Buttons

    2.2 Buttons Buttons Operation Instruction  Exit the current interface. Click  Switch from the "home screen" to the "Main Table Data Information" screen.  Browse 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 19: Home Screen

    2.3 Home screen 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, while when it is abnormal, the icon will be shown on the same position. ❷...

  • Page 20: Interface

    Battery voltage / battery current / lithium battery real-time SOC (display "--" without lithium battery) ❼ Parallel status icon. It shows when there is two or more inverter/chargers connect in parallel successfully, and it will not display on the single inverter/charger. ★...

  • Page 22: User Interface

    2.4.2 User interface After powering on the inverter/charger, the home screen shows up. Click the "ESC" button to enter the "Main Table Data Information" screen. Click the "ENTER" button to enter the next interface, or click the "UP/DOWN" button to browse the current screen display. "User Data Setup"...

  • Page 23: Administrator Interface

    password. The default parameters and setting range refer to chapter 2.4.3 Parameters list. 2.4.3 Administrator interface After powering on the inverter/charger, the home screen shows up. Press and hold the "ENTER" button to enter the password interface. Input the password correctly (0000 by default) to check all parameters or modify them.

  • Page 24: Parameters Setting

    2.5 Parameters setting 2.5.1 Parameters list Enter the "Set Data Navigation" interface according to chapter 2.4.3 Administrator interface. Then click the "UP/DOWN" button to select navigation 1－9 for detail settings. Default parameters and setting ranges are shown in the following table. Note: On the parameter setting interface, click the "UP/DOWN"...
  • Page 25 Parameters Default User define User define: DISABLE, ENABLE Note: The parameter will only take effect when UnbalanceSet DISABLE used in three phase. After restoring to factory (Current unbalance set) settings, the default value is the last modified value. User define：Single, Phase A, Phase B, Phase C Note: After phase set is changed, must turn off the inverter charger for 10 seconds before Phase Set...
  • Page 26 Namely, the maximum current at the battery end when the utility charges the battery. User define: 5.0A 110.0A HP3522-AH1250P20SA, step size: 0.1A 110.0A Namely, the maximum current at the battery end when the utility charges the battery. 4. Battery Data Setup BAT Set Mode (Battery set User define: Smart (Refer to chapter 2.5.3), Expert...
  • Page 27 100.0A Max. charging current) Namely, the maximum allowable charge current on the battery side. User define: 5.0A 120.0A HP3522-AH1250P20SA, step size: 0.1A 120.0A Namely, the maximum allowable charge current on the battery side. User define: 10.0A 175.0A HP3542-AH0650P20SA, step size: 0.1A 175.0A...
  • Page 28 Parameters Default User define Read-only, indicates abnormal ComStatus (BMS communication, indicates normal Communication Status) communication. User define: VOLT, SOC VOLT: The battery voltage control parameters take effect after setting this value as “VOLT.” SOC: The SOC parameters take effect after setting ChargeControlMode (Battery VOLT...
  • Page 29 Parameters Default User define It takes effect after the “ChargeControlMode” is set as “SOC.” User define: 10% to 35%, or 10% to (Low energy UnderEngyAlarmSoc (Under disconnect recover Soc minus 5%), step size: 1% energy alarm Soc) Note: Take the minimum value between (Low energy disconnect recover Soc minus 5%) and 35%.
  • Page 30 Parameters Default User define User define: -20℃ to 0℃, step size: 0.1℃ LimitDisChgTem (Limit discharge When the environment or the battery temperature is 0.0℃ temperature) lower than this value, the inverter/charger will stop discharging. BATOverTemp (Battery over User define: (Battery over temperature protect 50.0℃...
  • Page 31 Parameters Default User define User define: DISABLE, ENABLE LiProtectEnbl (Lithium battery DISABLE Set this value as "ENABLE," the charge/ discharge protection enable) low temperature limit function is effective. User define: ALL SINGLE, ALL MULTIPLE, When two PV arrays are independently input, the value shall be set to "ALL SINGLE."...
  • Page 32 Parameters Default User define User define: OFF, ON Note: This option is reserved, which is invalid Calibration Mode currently. Factory Set (After setting the "Stand By Mode" as "Standby," some settings can be restored to the factory state.) Note: For other parameters, only the last Return FactorySet (Return to the modified values will be saved and cannot be factory settings)
  • Page 33 Parameters Default User define User define: 0 to (Dry contact OFF voltage minus 44.0V (48V system) 0.1*N), step size: 0.1V. Note: N=Rated battery DryContactOnVolt (Dry contact voltage/12. ON voltage) 22.0V When the battery voltage is lower than this value, (24V system) the dry contact is connected.
  • Page 34 Parameters Default User define BaudRate 115200 User define: 115200, 9600, 19200, 38400, 57600 User define: 1－254, step size: 1 Address User define: 1 second to 3600 seconds, step size: 1 second (Note: When setting this value, press and hold "UP/DOWN" button increase/decrease the value by 100*step size, namely, 100 seconds.)
  • Page 35 Parameters Default User define User define: INVALID, BMS, VIRTUAL_BMS Set this value as "INVALID," the inverter/charger controls the charge and discharge according to the BMSCurent Select (BMS current value set on the LCD. Set this value as "BMS," the control select) inverter/charger controls the charge and discharge INVALID (See chapter 2.5.2 Battery work...
  • Page 36 Parameters Default User define User define: Default (25 ℃ ), BMS_ET (BMS environment temperature), BMS_C_MaxT (BMS cell maximum temperature), BMS_C_MinT (BMS cell minimum temperature), RS485, DSP The MAP table calculates the charging and discharging current values based temperature and SOC value of the lithium battery. When the lithium battery has BMS function and supports temperature upload, set “MAP TEMP TEMP...
  • Page 37 Parameters Default User define 57.6V BoostCharginVolt (Boost (48V system) 28.8V charging voltage) (24V system) 55.2V FloatChagingVolt (Float (48V system) 27.6V charging voltage) Read-only (24V system) 50.0V Note: They are determined by the battery type and LowVoltReconect (Low voltage (48V system) cannot be modified.

  • Page 38: Battery Work Modes

    Parameters Default User define 52.8V User define: Low voltage reconnect voltage< Boost (48V system) BoostRecnectVolt (Boost voltage reconnect voltage< Float charging voltage, 26.4V voltage reconnect voltage) step size: 0.1V (24V system) 50.0V User define: Low voltage disconnect voltage< Low (48V system) LowVoltReconect (Low voltage voltage reconnect voltage<...
  • Page 39 function at the end of based on the read BMS pack with BMS and current charge and discharge values. control function” 2. Normal communication 1. Lithium battery pack with The inverter/charger controls Figure “Setting BMS, without current charging and discharging process for lithium battery control function at the end based on the pre-set MAP...
  • Page 40 Figure 2 “Setting process for lithium battery pack with BMS and current control function”  When the system adopts a lithium battery pack with BMS and current control function at the end of charge and discharge, and the lithium battery pack can communicate with the inverter/charger normally, follow the flowchart below to set parameters correctly.
  • Page 41 The inverter/charger controls charging and discharging based on the read BMS values. Please go to EPEVER official website to download the currently supported BMS manufacturers and the BMS parameters.  The inverter/charger will control charging and discharging based on the LCD settings after setting the “BMSCurent Select”...
  • Page 42  Due to the different charging and discharging characteristics and voltage consistency of lithium batteries from different manufacturers, it is necessary for professionals to guide the use of VIRTUAL_BMS for charging and discharging. Figure 3 “Setting process for lithium battery pack with BMS, without current control ...
  • Page 44  The inverter/charger will control charging and discharging based on the LCD settings after setting the “BMSCurent Select” as “INVALID.”  Due to the different charging and discharging characteristics and voltage consistency of lithium batteries from different manufacturers, it is necessary for professionals to guide the use of VIRTUAL_BMS for charging and discharging.
  • Page 45 The inverter/charger will control charging and discharging based on the LCD  settings after setting the “BMSCurent Select” as “INVALID.” Due to the different charging and discharging characteristics and voltage  consistency of lithium batteries from different manufacturers, it is necessary for professionals to guide the use of VIRTUAL_BMS for charging and discharging.

  • Page 46: Battery Voltage Control Parameters (Smart)

    2.5.3 Battery voltage control parameters (Smart) After setting the "BAT Set Mode" as "Smart," the battery voltage control parameters are determined by the battery type and cannot be modified. To modify them, set the "BAT Set Mode" as "Expert" first. 2.5.4 Battery voltage control parameters (Expert) After setting the "BAT Set Mode"...
  • Page 47 43.2V 43.2V 43.2V 42.8－64V Low Voltage Disconnect Voltage 42.4V 42.4V 42.4V Read-only Discharging Limit Voltage The following rules must be obeyed when setting the Lead-acid battery voltage control parameters. A． Over Voltage Disconnect Voltage > Charging Limit Voltage ≥ Equalize Charging Voltage ≥ Boost Charging Voltage ≥...
  • Page 48 Low Voltage Reconnect Voltage 48.7V 52.0V 42.8－64V Under Voltage Warning Recover Voltage 48.0V 51.2V 42.8－64V Under Voltage Warning Voltage 46.5V 49.6V 42.8－64V Low Voltage Disconnect Voltage 43.5V 46.4V 42.8－64V Discharging Limit Voltage 41.2V 44.0V Read-only Battery Type LNCM LNCM6S LNCM7S User Define Voltage control parameters Over Voltage Disconnect Voltage...

  • Page 49: Time Setting

    When setting the Lithium battery voltage control parameters, the following rules must be obeyed. Over Voltage Disconnect Voltage < Over Charging Protection Voltage (BMS Circuit Protection Modules)-0.2V Over Voltage Disconnect Voltage > Charging Limit Voltage ≥ Equalize Charging Voltage ≥ Boost Charging Voltage ≥...

  • Page 50: Password Modifying

    2.5.6 Password modifying Enter the "Set Data Navigation" interface according to chapter 2.4.3 Administrator interface. Then click the "UP/DOWN" button to select "8 PassWord Setup", and click the "ENTER" button to enter the password modifying interface. Click the "ENTER" button to move right, click the "AC OUT"...

  • Page 51: Single Installation

    3 Single Installation 3.1 Attention  Please read the manual carefully to familiarize yourself with the installation steps. Be very careful when installing the batteries, especially flooded lead-acid batteries. Please wear eye  protection, and have fresh water available to rinse if contact with battery acid. ...

  • Page 52: Wire And Breaker Size

    PV wire size, please refer to the table below: Model PV wire size Circuit breaker HP3522-AH1250P20SA /11AWG 2P—20A (with arc extinguishing function) HP3542-AH0650P20SA When two PV arrays are connected independently, the wire and circuit breaker size of each PV array are...

  • Page 53: Mounting The Inverter/Charger

    Recommended Utility wire size  Model Utility wire size Circuit breaker HP3522-AH1250P20SA /10AWG 2P—32A HP3542-AH0650P20SA HP5542-AH1050P20SA 10mm /7AWG 2P—50A The utility input has the circuit breaker already; no need to add any more. CAUTION Recommended battery wire and breaker size ...
  • Page 54 The inverter/charger requires at least 30cm of clearance right and left, and 50cm of clearance above and below. Step1: Determine the installation location and heat-dissipation space. The inverter/charger requires at least 30cm of clearance right and left, and 50cm of clearance above and below. Step2: According to the installation position marked with the mounting plate 1, drill two M10 holes with an electric drill.

  • Page 55: Wiring The Inverter/Charger

    3.4 Wiring the inverter/charger Connect the inverter/charger in the order of “❶Ground > ❷Battery > ❸Load > ❹PV ❺Utility or Generator > ❻Optional accessories”, and disconnect the inverter/charger in the reverse > order. The following wiring sequence is illustrated in the appearance of "HP5542-AH1050P20SA." For wiring positions of other models, please refer to the actual product appearance.
  • Page 56 No battery mode ...
  • Page 57 Battery mode  Grounding The inverter/charger has a dedicated grounding terminal, which must be grounded reliably. The grounding wire size must be consistent with the recommended load wire size. The grounding connection point shall be as close as possible to the inverter/charger, and the total grounding wire shall be as short as possible.
  • Page 58  Do not ground the AC output L and N terminals.  The cabinet of the inverter/charger is connected to earth through the earth Grounding rail, along with the AC input and output's PE (Protective Earth) terminal. Connect the battery ...
  • Page 59 Connect the AC load  Risk of electric shock! When wiring the AC load, please disconnect the circuit breaker and ensure that the poles' leads are connected correctly.  The AC loads shall be determined by the continuous output power of the inverter/charger.
  • Page 60 Connect the PV modules  Risk of electric shock! The PV array can generate dangerous high-voltage! Disconnect the circuit breaker before wiring, and ensure that the leads of "+" and "-" poles are connected correctly. WARNING  It is forbidden to connect the positive and negative poles of the PV with the ground; otherwise, the inverter/charger will be damaged.
  • Page 61 Connect the Utility or generator  Risk of electric shock! The Utility input can generate dangerous high-voltage! Disconnect the circuit breaker or fast-acting fuse before wiring, and ensure that the poles' leads are connected correctly.  After the Utility is connected, the PV and battery cannot be grounded. In contrast, WARNING the inverter/charger cover must be grounded reliably (to shield the outside electromagnetic interference effectively and prevent the cover from causing...
  • Page 62 Dry contact interface: Function：  The dry contact interface can turn on/off the generator and is connected parallel with the 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 63: Operate The Inverter/Charger

    Connect optional accessories Connect the communication module Connect the WiFi module, TCP module, or 4G module to the RS485 com. port. End-users can remote monitor the inverter/charger or modify related parameters on the phone APP. Detailed setting methods, refer to the cloud APP, WiFi, TCP, or 4G module user manual. Note: For the specific communication modules supported, please refer to the accessories list file.
  • Page 64 Power switch  Connect the battery circuit breaker first. After the inverter/charger normally works, connect the PV array and utility circuit breakers later. Otherwise, we won't assume any responsibility for not following the operation.  The AC output is ON by default after the inverter/charger is powered. Before WARNING turning on the power switch, ensure the AC output is connected to loads correctly, and no safety hazard exists.

  • Page 65: Working Modes

    4 Working modes 4.1 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 (namely, Utility charging OFF voltage) Auxiliary module ON voltage (namely, Utility charging ON voltage) Utility Charging OFF SOC Utility Charging ON SOC...

  • Page 66: Scenario B: Pv Is Available, But The Utility Is Not Available

    ❷Any of the following is satisfied, 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.  Set the "Charge Control Mode" as "VOLT," the working mode is determined by the battery voltage value.

  • Page 67: Scenario C: Both Pv And Utility Are Available

    Note: When the battery voltage is greater than or equal to the LVR value, or ❷ the battery SOC is greater than or equal to the LER value, the working mode returns to state 4.2.3 Scenario C: Both PV and Utility are available. Discharging Mode: "PV>BP>BT"...
  • Page 68 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" ❶ When the PV power is greater than the load "PV>BT>BP"...
  • Page 69 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. > MCC*V ≤ MCC*V ❷...

  • Page 70: 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 71 ❶Any of the following is satisfied, the battery Charging Mode: "Solar prior" Discharging Mode: "PV>BT>BP" supplies the load.  The battery voltage is higher than or equal to the AOF value.  The battery SOC is greater than or equal to （D-3）...

  • Page 72: No Battery Mode

    Charging Mode: "Utly & solr" Discharging Mode: No impact under any mode or "Utltyprior" （D-5）  The Utility supplies power to the load and charges  Utility the battery simultaneously. 4.3 No battery mode Note: Under the no battery mode, the "Charging Mode" and "Discharging Mode" settings will not take effect.

  • Page 73: Protections

    5 Protections Protections Instruction When the PV array's actual charging current/power exceeds its rated current/power, it will charge the battery as per the rated current/power. When the PV voltage exceeds the bus voltage, the PV input power is constrained PV limit Current/Power by the load power, charging power, the power that the solar panels can deliver, and the current of the PV circuit breaker.
  • Page 74 The inverter/charger will resume charging/discharging when the internal temperature is normal and the protection time lasts more than 20 minutes. 3605W≤P˂4550W 4550W≤P˂5250W 5250W≤P˂7000W P≥7000W HP3522-AH1250P20SA HP3542-AH0650P20SA Protect after 30 seconds Protect after 10 seconds Protect after 5 seconds Protect immediately Inverter overload Note: The output is recovered automatically after a delay time of 5s, 10s, and 15s separately.
  • Page 75 Protections Instruction 3850W≤P˂4795W 4795W≤P˂5495W 5495W≤P˂7000W P≥7000W HP3522-AH1250P20SA HP3542-AH0650P20SA Protect after 30 seconds Protect after 10 seconds Protect after 5 seconds Protect immediately Utility bypass overload Note: The output is recovered automatically after a delay time of 5s, 10s, and 15s separately. The (no-Battery mode) inverter/charger stops working after the 4th protection and can resume working after resetting or restarting.

  • Page 76: Troubleshooting

    6 Troubleshooting After the inverter/charger is powered on, the meter displays the boot screen all the time (unable to enter the home screen) and the red "RUN" indicator flashes. It means the communication with the inverter/charger is error. When the above fault occurs, check whether the CAUTION communication cable is disconnected.
  • Page 77 Error ① Fault/Status Indicator Buzzer Solution code Check that the battery actual charging and discharging current does not BAT OCP (Battery over Err37 exceed the setting values of "Battery Max. charging current " and current protection) "Battery limit discharging current." BAT DROP (Battery Check whether the battery connection is normal, and whether the BMS Err39...

  • Page 78: Pv Faults

    6.2 PV faults Error ① ② Fault/Status Indicator Buzzer Solution code PV1 OVP (PV1 over Intermittent Check if the PV open-circuit voltage is too high (greater than 500 V). Err15 indicator voltage protection) beeps The alarm is released when the PV open-circuit voltage is below 490 V. red on Turn off the inverter/charger first, wait for 5 minutes and then turn on PV1 OCP (PV1 over...

  • Page 79: Inverter Faults

    ②Set the "BuzzerAlert" as "ON," the buzzer will sound when a fault occurs. After the fault is eliminated, the buzzer will automatically mute. If the "BuzzerAlert" is set as "OFF," even if a fault occurs, the buzzer will not sound. 6.3 Inverter faults Error ①...
  • Page 80 Error ① ② Fault/Status Indicator Buzzer Solution code INV CURR OFFSET ERR Disconnect the load completely and turn off the inverter/charger. Wait (Inverter current offset Err35 5 minutes and then turn on the inverter/charger to check if it resumes error) normal.

  • Page 81: Utility Faults

    6.4 Utility faults Error ① ② Fault/Status Indicator Buzzer Solution code Check if the utility voltage exceeds the "Utility Over Voltage Disconnect GRID AC OVP (AC over voltage Intermittent Voltage," then disconnect the AC input and turn off the inverter/charger. Err8 indicator protection)

  • Page 82: Load Faults

    ①The fault/status code is displayed in the "Status" column at the bottom right corner of the LCD. When multiple faults occur simultaneously, the LCD only displays the fault code with the smallest value. ②Set the "BuzzerAlert" as "ON," the buzzer will sound when a fault occurs. After the fault is eliminated, the buzzer will automatically mute. If the "BuzzerAlert"...

  • Page 83: Other Faults For Single Inverter/Charger

    6.6 Other faults for single inverter/charger Error ① Fault/Status Indicator Buzzer Solution code BUS OVP (DC bus over Err0 Turn off the inverter/charger. Wait 5 minutes and then turn on the voltage protection) inverter/charger to check if it resumes normal. If it is still abnormal, BUS UVP (DC bus under Err6 please contact our technical support.

  • Page 84: Bms Faults

    Error ① Fault/Status Indicator Buzzer Solution code LIMITCHG (Low temperature limit Err46 charging) Check whether the ambient temperature is lower than the set "Charge LIMITDISCHG (Low low temperature limit" and "Discharge low temperature limit." temperature limit Err47 discharging) Turn off the inverter/charger. Wait 5 minutes and then turn on the EEP ERR (EEPROM Err54 inverter/charger to check if it resumes normal.

  • Page 85: Maintenance

    7 Maintenance The following inspections and maintenance tasks are recommended at least twice yearly for best performance. Make sure no block on airflow around the inverter/charger. Clear up dirt and fragments on the  radiator. Check all the wired cables to ensure insulation is not damaged for serious solarization, frictional ...

  • Page 86: Specifications

    8 Specifications Model HP3522-AH1250P20SA Utility input 176VAC to 264VAC (Default) Utility Voltage 90VAC to 280VAC (Configurable) Utility Frequency 45Hz to 65Hz Maximum Utility Charging 110A Current Switch Response Time – Inverter to Utility: 10ms Switch Response Time Switch Response Time – Utility to Inverter (when the load...
  • Page 87 Others <1.4 A No-load Losses Test condition: Utility, PV and Load are not connected, AC output is ON, fan stops, @24V input <0.9A Standby Current Test condition: Utility, PV and Load are not connected, AC output is OFF, fan stops, @24V input -20℃...
  • Page 88 Maximum Load Efficiency Maximum Inverter Efficiency Parallel Function Yes, 12 units in standard, 16 units at most Solar controller Maximum Open-circuit 500V (At minimum operating environment temperature) Voltage 440V (At 25℃) MPPT Voltage Range 85V to 400V PV Maximum Input Power 4000W 6000W MPPT Input Channels...

  • Page 89: Dimensions

    9 Dimensions Model: HP3522-AH1250P20SA (Unit: mm)
  • Page 90 Model: HP3542-AH0650P20SA (Unit: mm)
  • Page 91 Model: HP5542-AH1050P20SA (Unit: mm) Any changes without prior notice! Version number: V1.3...
  • Page 92 HUIZHOU EPEVER TECHNOLOGY CO., LTD. Tel: +86-752-3889706 E-mail: info@epever.com Website: www.epever.com...

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