Humless UL 9540 User Manual

Universal 6kw inverter

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Humless Universal 6kW Inverter

UL 9540 (SGS NA Listed Mark) and UL 1741 Listed

User Manual

Version 1.2 of 2022

IT IS IMPORTANT TO READ AND UNDERSTAND THIS ENTIRE MANUAL PRIOR TO

OPERATING AND INSTALLING THIS EQUIPMENT.

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Page 1 Humless Universal 6kW Inverter UL 9540 (SGS NA Listed Mark) and UL 1741 Listed User Manual Version 1.2 of 2022 IT IS IMPORTANT TO READ AND UNDERSTAND THIS ENTIRE MANUAL PRIOR TO OPERATING AND INSTALLING THIS EQUIPMENT.
Page 2: Table Of Contents
Connecting the AC Output ………………………………………………………………………. Communication …………………………………………………………………………………… Pin Assignment for RS-232 Communication Port …………………………………………….. 10.1 Pin Assignment for BMS Communication Port ………………………………………………... 10.2 Dry Contact Signal ………………………………………………………………………………. 10.3 Commissioning …………………………………………………………………………………… Initial Setup ……………………………………………………………………………………….. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 2...
Page 3 Charging Management …………………………………………………………………………... Maintenance & Cleaning ………………………………………………………………………... Trouble Shooting …………………………………………………………………………………. Warnings …..………………………………………………………………………………………. 16.1 Fault reference Codes …………………………………………………………………………… 16.2 Specifications ……………………………………………………………………………………... Appendix I: Parallel Installation Guide …………………………………………………………. Appendix II: Wi-Fi Operation Guide ……………………………………………………………. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 3...
Page 4: Introduction
PV array types other than these two types of PV modules to the Inverter. Do not connect the positive or negative terminal of the solar panel to the ground. See Figure 1 for a simple diagram of a typical solar system with this hybrid Inverter. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 4...
Page 5: Important Safety Information
2. Important Safety Information Before using the Inverter, please read all instructions and cautionary markings on the unit and this manual. Store the manual where it can be accessed easily. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 5...
Page 8: Installation
Ensure that there is sufficient clearance between components as illustrated in order to ensure sufficient heat dissipation and adequate access to wiring. Clearances should be 20 inches (50cm) on the top, bottom, and sides and 40 inches (100cm) to the front. 4.3. Mounting the Unit Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 8...
Page 9: Grid (Utility) Connection
WARNING! It is extremely important for system safety and efficient operation to use the appropriate cable for the Grid (utility) connection. To reduce the risk of injury, please use the proper recommended cable size as below. Version: 1.2 November 2022 © Humless 2022 www.humless.com...
Page 10: Connecting To The Ac Utility
There are two functions with this port: ● allows generator input as power source ● The other allows second AC output to connect. This output can be turned On or Off by setting the battery voltage. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 10...
Page 11: Preparation
Before making the generator input connection, be sure to open DC protector or disconnector first. Remove the insulation sleeve 7mm for four conductors. Insert input wires according to the polarities indicated on the terminal block and tighten the terminal screws. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 11...
Page 12: Pv Module (Dc) Connection
(-) of the connection cable to the negative pole (-) of the PV input connector. CAUTION: Exceeding the maximum input voltage can destroy the unit!! Check the system before connecting. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 12...
Page 13 CAUTION: Never directly touch the terminals of the Inverter as this could result in lethal electric shock. CAUTION: When PV modules are exposed to sunlight, they may generate DC voltage to the Inverter. Version: 1.2 November 2022 © Humless 2022 www.humless.com...
Page 15: Battery Connection
CAUTION: Before connecting to batteries, please install a separate DC circuit breaker between the Inverter and batteries. NOTE1: Only Humless LiFePO4 batteries can be connected to this Inverter (see www.humless.com). NOTE2: Please use 60VDC/200A circuit breaker. NOTE3: The overvoltage category of the battery input is II.
Page 16: Load (Ac Output) Connection
WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC connection. To reduce the risk of injury, please use the proper recommended cable size as below. 9.2 Connecting to the AC output Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 16...
Page 17 Step 2: Remove the insulation sleeve 7mm for four conductors. Step 3: Insert AC input wires according to the polarities indicated on the terminal block and tighten the terminal screws. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 17...
Page 18: Communication
“SolarPower Wi-Fi” app from the Apple Store® or “SolarPower” on the Google Play® Store. All dataloggers and parameters are saved in iCloud. For quick installation and operation, please refer to Appendix II - See the Wi-Fi Operation Guide for details. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 18...
Page 19: Pin Assignment For Rs-232 Communication Port
There is one dry contact available on the bottom panel, this can be used to control the external generator. Electrical Parameters Note: The application of the dry contact should not exceed the electric parameter shown above as this will damage the internal relay. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 19...
Page 21: Commissioning
Follow the on-screen instructions to install the software. ● When your computer restarts, the monitoring software will appear as a shortcut icon located in the system tray, near the clock. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 21...
Page 22: Initial Setup
Step 2: Login to the software first by entering the default password “administrator”. Step 3: Select Device Control>>MyPower Management. This will enable you to set up Inverter operation mode and personalize the interface. Refer to the diagram below. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 22...
Page 23 SECTION A: Standard: Will list local Grid standard. The factory password will be required to make any modifications. Please contact Humless support if you wish to make this change. CAUTION: An incorrect setting could cause damage to the unit. Nominal Output Voltage: 120V.
Page 24 Load, and 3 Grid. PV power will charge the battery first, then provide power to the load. If there is any remaining power left, it will feed into the Grid. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 24...
Page 25 Battery, and 3 Grid. PV power will provide power to the load first. Then, it will charge the battery. If there is any remaining power left, it will feed into the Grid. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 25...
Page 26 NOTE: The max. feed-in Grid power setting is available in the parameter setting. Please refer to the software manual. Version: 1.2 November 2022 © Humless 2022 www.humless.com...
Page 27 NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1 Grid and 2 Battery order. Otherwise, it will cause battery damage. ● Grid-tie with backup (IV): The user can only set up peak time and off-peak electricity demand. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 27...
Page 28 When the battery is fully charged, the remaining PV power will provide power to the load first. ● If PV power is not sufficient, the Grid will back up the load. ● If Grid power is not available, battery power will provide power to the load. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 28...
Page 29 Grid-Tie Under this operation mode, PV power only feeds-in to the Grid. No priority setting is available. Off-Grid Off-Grid (I): Default setting for off-Grid mode. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 29...
Page 30 NOTE: In order to avoid damage to the battery this option will not be available during AC charging time and the priority will automatically become 1 Grid and 2 Battery order. ● Off-Grid (II) Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 30...
Page 31 NOTE: In order to avoid possible damage to the battery, this option will become unavailable during AC charging time and the priority will automatically become 1 Grid and 2 Battery order. ● Off-Grid (III) Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 31...
Page 32 NOTE: In order to avoid damage to the battery this option is not available during AC charging and the priority will automatically change as follows, 1 Grid and 2 Battery. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 32...
Page 33: Operation
NOTICE: To accurately monitor and calculate the energy generation, please calibrate the timer of this unit via software every month. For detailed calibration, please check the user manual of bundled software. 13.2 Touch Screen Information Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 33...
Page 34: Touch Screen Function Keys
13.3 Touch Screen Function Keys Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 34...
Page 36: Lcd Settings
After touching and holding both the “UP” and “DOWN” buttons for 2 seconds, the unit will enter setting mode. Press the “UP” or “DOWN” button to select setting programs. And then, press the “ENTER” button to confirm the selection or the ESC button to exit. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 36...
Page 44: Query Menu Operation
Frequency, voltage, power, or load percentage of AC output. ● Input voltage or power of PV input. ● Battery voltage or capability percentage. Setting Display Procedure ● Input voltage or frequency of AC input Procedure Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 44...
Page 45 ● Frequency, voltage, power or percentage of AC output Procedure ● Input voltage or power of PV input. Procedure Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 45...
Page 46 Switch LCD Displayed Information The LCD display information will be switched in turns by pressing the “ ” or “ ” key. The selectable information is switched as the following table in order. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 46...
Page 50: Operation Mode & Display
Below is only contained LCD display for Grid-tie with backup mode (I). If you need another operation mode set on the LCD display, please check with the installer. Inverter mode with Grid-connected Inverter is connected to the Grid and works with DC/INV operation. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 50...
Page 52 Inverter mode without the Grid connected Inverter is working with DC/INV operation and is not connected to the Grid. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 52...
Page 53 • Bypass mode. The Inverter is working without DC/INV operation and is connected to the loads. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 53...
Page 54 • Standby mode. The Inverter is working without DC/INV operation and load connected. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 54...
Page 55: Charging Management
300 x 0.2=60 (A). Please use at least 50Ah battery because the settable minimum value of charging current is 10A. If using AGM/Gel or other types of battery, please consult with an installer for the details. Version: 1.2 November 2022 © Humless 2022 www.humless.com...
Page 57: Maintenance & Cleaning
Contact with any part of a grounded battery can result in electrical shock. The likelihood of such shock can be reduced if such grounds are removed during installation and maintenance (applicable to equipment and remote battery supplies not having a grounded supply circuit). Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 57...
Page 58: Trouble Shooting
There are 17 states defined as warnings. When a warning state occurs an icon will flash. Press “up” or “down” to select the warning code. If there are several codes they will be displayed sequentially. Please contact your installer if anything is unclear or you are uncertain about any given warning. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 58...
Page 59: Fault Reference Codes
16.2 Fault Reference Codes When a fault occurs the “ERROR” icon will flash. Below are the fault codes for reference. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 59...
Page 61 *Power derates 1% for every 100m when the altitude is over 1000m. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 61...
Page 62: Appendix I: Parallel Installation Guide
Appendix I: Parallel Installation Guide Introduction Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 62...
Page 65 Inverter Configuration Two Inverters in parallel: Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 65...
Page 66 The parallel function setting is only available through the SolarPower software. Please install SolarPower on your PC first. You can set each Inverter through the USB port on your PC Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 66...
Page 69: Appendix Ii: Wi-Fi Operation Guide
Android-based devices. All data loggers and parameters are saved in iCloud. The main functions of this APP are as follows: ● Device status. ● Device configuration after the initial installation. ● Alarm notifications. ● Inverter history data. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 69...
Page 74 After you have successfully logged in you can access the “Overview” page to have an overview of your devices, including an overall view and “Today’s” power as per the following diagram. Version: 1.2 November 2022 © Humless 2022 www.humless.com Page 74...

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Ul 1741 Batuni20/6

Humless UL 9540 User Manual

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Summary of Contents for Humless UL 9540

Page 2: Table Of Contents

Page 4: Introduction

Page 5: Important Safety Information

Page 7: Unpacking & Overview

Page 8: Installation

Page 9: Grid (Utility) Connection

Page 10: Connecting To The Ac Utility

Page 11: Preparation

Page 12: Pv Module (Dc) Connection

Page 15: Battery Connection

Page 16: Load (Ac Output) Connection

Page 18: Communication

Page 19: Pin Assignment For Rs-232 Communication Port

Page 21: Commissioning

Page 22: Initial Setup

Page 33: Operation

Page 34: Touch Screen Function Keys

Page 36: Lcd Settings

Page 44: Query Menu Operation

Page 50: Operation Mode & Display

Page 55: Charging Management

Page 57: Maintenance & Cleaning

Page 58: Trouble Shooting

Page 59: Fault Reference Codes

Page 60: Specifications

Page 62: Appendix I: Parallel Installation Guide

Page 69: Appendix Ii: Wi-Fi Operation Guide

This manual is also suitable for:

Humless UL 9540 User Manual

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