Epever HP2022-AH0750P20A User Manual
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Epever HP2022-AH0750P20A User Manual

Inverter/charger
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HP2022-AH0750P20A
HP3522-AH1250P20A
HP3542-AH0650P20A
HP5542-AH1050P20A
Inverter/charger
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Summary of Contents for Epever HP2022-AH0750P20A

  • Page 1 Inverter/charger User Manual HP2022-AH0750P20A HP3522-AH1250P20A HP3542-AH0650P20A HP5542-AH1050P20A...

  • Page 3: Table Of Contents

    Contents Important Safety Instructions..............1 Disclaimers....................5 1 General Information.................6 1.1 Overview............................6 1.2 Appearance...........................9 1.3 Naming rules..........................12 1.4 Connection diagram......................... 13 2 Interface....................15 2.1 Indicator............................15 2.2 Buttons............................16 2.3 Home screen..........................17 2.4 Interface............................18 2.4.1 Real-time data interface....................18 2.4.2 User interface........................
  • Page 4 3.2 Wire and breaker size.......................50 3.3 Mounting the inverter/charger....................52 3.4 Wiring the inverter/charger.....................53 3.5 Operate the inverter/charger....................61 4 Working modes..................63 4.1 Abbreviation..........................63 4.2 Battery mode..........................63 4.2.1 Scenario A: Both PV and Utility are not available............63 4.2.2 Scenario B: PV is available, but the Utility is not available........64 4.2.3 Scenario C: Both PV and Utility are available..............65 4.2.4 Scenario D: The PV is not available, but the Utility is available........

  • Page 5: 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-AHP20A 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 6 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 7 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 8 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 9: 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 10: General Information

    1 General Information 1.1 Overview The HP-AHP20A is a cost-effective hybrid inverter/charger that integrates charging and inverting functions. It supports charging from utility power, generators, and solar panels, as well as offering utility bypass, inverter output, and energy management capabilities. Additionally, 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 11 Features  Full intelligent digital energy storage equipment.  Support battery mode or non-battery mode.  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 ...
  • Page 12 is "ALL SINGLE" by default, The "ALL MULTIPLE" is invalid. ③ When connecting a non-inverter generator, the charging current maybe cannot reach the rated power. It is recommended to connect an inverter generator. And when using the generator, the “AC Input mode”...

  • Page 13: Appearance

    1.2 Appearance HP3522-AH1250P20A / HP3542-AH0650P20A / HP2022-AH0750P20A ...
  • Page 14 HP5542-AH1050P20A ...
  • Page 15 RS485-A RS485-B RS485-B 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 16: Naming Rules

    Definition Definition HFS-BUS CAN-L PFS-BUS CAN-H PS-GND 6/7/8/9 Reserved 1.3 Naming rules...

  • Page 17: Connection Diagram

    1.4 Connection diagram No battery mode ...
  • Page 18 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 19: 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 20: 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 21: 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 22: 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 24: 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 25: Administrator Interface

    password. The default parameters and setting range refer to chapter 2.5.1 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 26: 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 27 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 28 Namely, the maximum current at the battery end when the utility charges the battery. User define: 5.0A 70.0A HP2022-AH0750P20A, step size: 0.1A 70.0A Namely, the maximum current at the battery end when the utility charges the battery. MaxCharge Current (Max. Utility charging current)
  • Page 29 HP3542-AH0650P20A, step size: 0.1A 60.0A Namely, the maximum allowable charge current on the battery side. User define: 5.0A 70.0A HP2022-AH0750P20A, step size: 0.1A 70.0A Namely, the maximum allowable charge current on the battery side. MaxCharginCurrent (Battery Max. charging current) User define: 5.0A...
  • Page 30 HP3542-AH0650P20A, step size: 0.1A 175.0A Namely, the maximum allowable discharge current on the battery side. User define: 10.0A 220.0A HP2022-AH0750P20A, step size: 0.1A 220.0A Namely, the maximum allowable discharge current on the battery side. LimitDisChgCurrt (Battery limit discharging current) User define: 10.0A...
  • Page 31 Parameters Default User define It takes effect after the “ChargeControlMode” is set as “SOC.” When the battery SOC is higher than or equals to this value, the inverter/charger will stop Full Discnnct Soc (Full energy charging the battery. 100% disconnect Soc) User define: (Full energy disconnect recover Soc plus 5%) to 100%, or 80% to 100%, step size: 1% Note: Take the maximum value between (Full...
  • Page 32 Parameters Default User define It takes effect after the “ChargeControlMode” is set as “SOC.” UtiltyChargeOnSoc (Utility User define: 20% to 50%, or 20% to (Utility charging charging on Soc) off Soc minus 10%), step size: 1% Note: Take the minimum value between 50% and (Utility charging off Soc minus 10%).
  • Page 33 Parameters Default User define ResetSocCalculate (Reset Soc Press the ENTER button to reset, the SOC will be calculate) automatically recalculated. ResetSelfStudyAH Press the ENTER button to reset the self study AH. 5. Basic Param Setup User define: HAVE, NO, REV Note: When the parameter value is changed (i.e., the value is changed from “HAVE”...
  • Page 34 Parameters Default User define User define: DISABLE, ENABLE This parameter is for automatic equalizing charging. Set this value as "ENABLE," the inverter/charger performs the equalize charging automatically. After EqualizeEnable DISABLE modifying parameter restarting inverter/charger, the parameter will be restored to the default value (the previous modified value will not be saved).
  • Page 35 Parameters Default User define User define: CLOSE, OPEN. Open or close the loads. This parameter and the load output switch are of the same control. To change the state of either one, the other will be Load Open/Close OPEN changed too. After modifying the parameter and restarting the inverter/charger, the parameter will be restored to the default value (the previous modified value will not be saved).
  • Page 36 Parameters Default User define User define: Shared, Independent This parameter takes effect when inverter/chargers are connected in parallel. If each inverter/charger is connected to the same battery BATT Input Mode Shared pack, this value needs to be set to "Shared" mode. If each inverter/charger is connected to a separate battery pack, this value needs to be set to...
  • Page 37 Parameters Default User define User define: 0－240, step size: 1 BMS Protocol Note: Refer to the Lithium battery protocol file. BMS Com Method RS485 Read-only User define: OPEN, CLOSE Led Switch OPEN Turn on/off the PV/LOAD/GRID/RUN indicators. User define: DISABLE, ENABLE Set this value as "ENABLE,"...
  • Page 38 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 39 Parameters Default User define 57.6V BoostCharginVolt (Boost (48V system) 28.8V charging voltage) (24V system) 55.2V FloatChagingVolt (Float charging (48V system) 27.6V voltage) Read-only (24V system) 50.0V Note: They are determined by the battery type LowVoltReconect (Low voltage (48V system) and cannot be modified. 25.0V reconnect voltage) (24V system)

  • Page 40: Battery Work Modes

    Parameters Default User define 52.8V User define: Low voltage reconnect voltage< Boost (48V system) BoostRecnectVolt (Boost voltage voltage reconnect voltage< Float charging voltage, 26.4V 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 41 Scenario Recommended work Mode Setting Process The inverter/charger controls See Figure 1 “Setting Non-lithium battery pack charging and discharging process for non-lithium based on the LCD settings. battery pack ” 1. Lithium battery pack with The inverter/charger controls Figure “Setting BMS and current control charging and discharging process for lithium battery...
  • Page 42 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 43 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 ...
  • Page 44 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 46 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 47 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 48: 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 49 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 50 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 51: 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 52: 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 53: 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 54: Wire And Breaker Size

    PV module's Isc. The PV array's Isc must not exceed the maximum PV input current. For max. PV input current and max. PV wire size, please refer to the table below: Model PV wire size Circuit breaker HP2022-AH0750P20A 3.1 mm /12AWG 2P—16A (with arc extinguishing function) HP3542-AH0650P20A /11AWG 2P—16A (with arc extinguishing function)
  • Page 55 Recommended Utility wire size  Model Utility wire size Circuit breaker 3.1 mm /12AWG 2P—16A HP2022-AH0750P20A HP3522-AH1250P20A /10AWG 2P—32A HP3542-AH0650P20A HP5542-AH1050P20A 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 56: Mounting The Inverter/Charger

    3.3 Mounting the inverter/charger Risk of explosion! Never install the inverter/charger in a sealed enclosure with flooded batteries! Do not install the inverter/charger in a confined area where the battery gas WARNING can accumulate. The inverter/charger can be fixed to the concrete and solid brick walls, while it cannot be fixed to the hollow brick wall.

  • Page 57: Wiring The Inverter/Charger

    bottom of the inverter/charge). Step5: Remove the inverter/charger and drill an M10 hole according to the position determined in step4. Step6: Insert the screw of the M8 bolt and the steel pipe into the M10 hole. Step7: Install the inverter/charger and secure the nuts with a sleeve. 3.4 Wiring the inverter/charger Connect the inverter/charger in the order of “❶Ground >...
  • Page 58 No battery mode ...
  • Page 59 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 60  Do not ground the battery terminals.  Do not ground the PV terminals.  Do not ground the AC input L and N terminals between the No grounding inverter/charger and the household power distribution cabinet.  Do not ground the AC output L and N terminals. ...

  • Page 61: Silk-Screen

    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 62 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 63 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 64: Working Principle

    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 65: Operate The Inverter/Charger

    Connect optional accessories Connect the communication module Connect the WiFi module, Bluetooth 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, Bluetooth, TCP, or 4G module user manual. Note: For the specific communication modules supported, please refer to the accessories list file.
  • Page 66 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 67: 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 68: 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 69: 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 70 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 71 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 72: 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 73 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 74: 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 75: 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 76 The inverter/charger will resume charging/discharging when the internal temperature is normal and the protection time lasts more than 20 minutes. 2060W≤P˂2600W 2600W≤P˂3000W 3000W≤P˂4000W P≥4000W HP2022-AH0750P20A 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 77 Protections Instruction 2200W≤P˂2740W 2740W≤P˂3140W 3140W≤P˂4000W P≥4000W HP2022-AH0750P20A 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 78 Protections Instruction 5665W≤P˂6600W 6600W≤P˂7700W P≥7700W HP5542-AH1050P20A Protect after 30 seconds Protect after 10 seconds Protect after 5 seconds Inverter overload Note: The output is recovered automatically after a delay time of 5s, 10s, and 15s separately. The (no Utility) inverter/charger stops working after the 4th protection and can resume working after resetting or restarting. 6050W≤P˂6985W 6985W≤P˂8085W P≥8085W...

  • Page 79: 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 80 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 81: 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 82: 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 83 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 84: 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 85: 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 86: 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 87: 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 88: 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 89: Specifications

    8 Specifications Model HP2022-AH0750P20A HP3522-AH1250P20A 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 90 Others <1.1 A <1.2A No-load Losses Test condition: Utility, PV and Load are not connected, AC output is ON, fan stops, @24V input <0.9A <0.9A Standby Current Test condition: Utility, PV and Load are not connected, AC output is OFF, fan stops, @24V input -20℃...
  • Page 91 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 92 HUIZHOU EPEVER TECHNOLOGY CO., LTD. Tel: +86-752-3889706 E-mail: info@epever.com Website: www.epever.com...

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