Epever HP3542-AH0650P20SA User Manual (English)

Questions and Answers:

D
Dan StewartAug 8, 2025
What to do if my Epever Inverter shows BAT OVP (Battery over voltage protection)?
- B
  Brittany DouglasAug 8, 2025
  If your Epever Inverter displays 'BAT OVP', it means the battery voltage is too high. To resolve this, disconnect the utility and PV sides, then check the battery voltage. Ensure the actual voltage matches the rated voltage and that the 'over voltage disconnect voltage' setting aligns with battery specifications. The alarm should clear automatically once the battery voltage drops below the 'over voltage reconnect voltage'.
B
Brandi SchneiderAug 14, 2025
What to do if my Epever Inverter shows BAT UVP (Battery under voltage protection)?
- K
  Kenneth HensleyAug 14, 2025
  If your Epever Inverter displays 'BAT UVP', it indicates that the battery voltage is too low. You should disconnect the utility and PV sides and check the battery voltage. Once the battery voltage is charged and reaches above the 'low voltage reconnect voltage', it will automatically return to normal. Alternatively, you can use other methods to charge the battery.
D
Debra HarringtonAug 22, 2025
What to do if my Epever Inverter displays BAT OTP (Battery over temperature protection)?
- J
  Jeffrey PetersonAug 22, 2025
  If your Epever Inverter shows 'BAT OTP', it means the battery is overheating. Make sure the battery is installed in a cool, well-ventilated area. Also, verify that the battery's actual charging and discharging current doesn't exceed the set values for 'Battery Max. charging current' and 'Battery limit discharging current'. The system will return to normal operation once the battery cools down to below the 'Battery over temperature protect recover' threshold.
T
trujillojamesAug 29, 2025
How to fix Epever HP3542-AH0650P20SA Inverter/charger when it can't enter the home screen and the red 'RUN' indicator flashes?
- C
  Caleb ShafferAug 30, 2025
  If your Epever Inverter/charger is unable to enter the home screen and the red 'RUN' indicator flashes, it indicates a communication error. Check if the communication cable is disconnected. If the cable is connected, contact after-sales engineer for assistance.

Epever HP3542-AH0650P20SA Specifications

General

Brand	Epever
Model	HP3542-AH0650P20SA
Category	Inverter
Language	English

Summary

Important Safety Instructions

Explanation of symbols

Describes symbols used for warnings and tips in the manual.

Safety cautions before installation

Outlines precautions to take before installing the unit.

Safety cautions for electrical connection

Provides guidelines for safe electrical wiring.

Safety cautions for inverter/charger operation

Lists critical safety measures during operation.

Working temperature

Specifies operating temperature and humidity limits.

General Information

Overview

Introduces the inverter/charger features and capabilities.

Appearance

Describes the physical layout and components of the unit.

Connection diagram

Illustrates how the inverter/charger connects to external systems.

Interface

Indicator

Details the function of various LED indicators on the unit.

Buttons

Explains the operation of the control panel buttons.

Home screen

Describes the main display screen and its information.

Real-time data interface

Shows how to access live operational data.

Parameters setting

Parameters list

Comprehensive list of configurable parameters and their ranges.

Battery voltage control parameters (Expert)

Settings for battery voltage control in Expert mode.

Time setting

Procedure for setting the system time.

Single Installation

Attention

General precautions and considerations for installation.

Wire and breaker size

Recommendations for cable and breaker selection.

Mounting the inverter/charger

Instructions for physically installing the unit.

Wiring the inverter/charger

Step-by-step guide for connecting wires.

Grounding

Details on proper grounding procedures.

Connect the PV modules

Guide for connecting the solar array.

Connect the Utility or generator

Procedures for connecting mains or generator power.

Operate the inverter/charger

Set parameters by the buttons

Guide to configuring settings via the control panel.

Use the inverter/charger

Basic operational steps after installation.

Parallel Installation

Wire and breaker size for parallel operation

Sizing for parallel configurations.

Precautions for parallel installation

Key considerations for multi-unit setups.

Parallel Operation in Single phase

How to configure units for single-phase parallel operation.

Debug for single phase parallel

Troubleshooting steps for single-phase parallel setups.

Parallel Operation in Three Phase

Configuration for three-phase parallel operation.

Debug for three phase parallel

Troubleshooting for three-phase parallel setups.

BMS connection for parallel equipment

Connecting BMS for parallel battery management.

Parameters Sync Update Item

Working modes

Abbreviation

Glossary of terms used in working modes.

Battery mode

Explains operation with a battery.

Scenario A: Both PV and Utility are not available

Operation when only battery is primary.

Scenario B: PV is available, but the Utility is not available

Operation with PV and battery, no utility.

Scenario D: The PV is not available, but the Utility is available

Operation with utility and battery, no PV.

No battery mode

Operation without a battery.

Protections

Troubleshooting

Battery faults

Solutions for battery-related errors.

PV faults

Solutions for PV array errors.

Inverter faults

Solutions for inverter operational errors.

Utility faults

Solutions for utility power faults.

Load faults

Solutions for load-related issues.

Parallel faults

Troubleshooting for parallel system errors.

BMS faults

Solutions for Battery Management System errors.

Maintenance

Specifications

Dimensions

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Epever HP3542-AH0650P20SA User Manual

Table of Contents

Questions and Answers:

Epever HP3542-AH0650P20SA Specifications

Summary

Important Safety Instructions

Explanation of symbols

Safety cautions before installation

Safety cautions for electrical connection

Safety cautions for inverter/charger operation

Working temperature

General Information

Overview

Appearance

Connection diagram

Interface

Indicator

Buttons

Home screen

Real-time data interface

Parameters setting

Parameters list

Battery voltage control parameters (Expert)

Time setting

Single Installation

Attention

Wire and breaker size

Mounting the inverter/charger

Wiring the inverter/charger

Grounding

Connect the PV modules

Connect the Utility or generator

Operate the inverter/charger

Set parameters by the buttons

Use the inverter/charger

Parallel Installation

Wire and breaker size for parallel operation

Precautions for parallel installation

Parallel Operation in Single phase

Debug for single phase parallel

Parallel Operation in Three Phase

Debug for three phase parallel

BMS connection for parallel equipment

Parameters Sync Update Item

Working modes

Abbreviation

Battery mode

Scenario A: Both PV and Utility are not available

Scenario B: PV is available, but the Utility is not available

Scenario D: The PV is not available, but the Utility is available

No battery mode

Protections

Troubleshooting

Battery faults

PV faults

Inverter faults

Utility faults

Load faults

Parallel faults

BMS faults

Maintenance

Specifications

Dimensions

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