Felicitysolar IVCM Series Solar Inverter User Guide

Model: IVCM Series (1KW~3KW)

About This Manual

This manual provides instructions for the assembly, installation, operation, and troubleshooting of the Felicitysolar IVCM Series solar inverter. It also includes safety guidelines and information on necessary tools and wiring.

Safety Instructions:

Read all instructions and cautionary markings before use.
Use only deep-cycle lead-acid type rechargeable batteries.
Do not disassemble the unit; seek qualified service for repairs.
Disconnect all wiring before maintenance or cleaning.
Only qualified personnel should install the device with a battery.
Never charge a frozen battery.
Use appropriate cable sizes for optimal operation.
Exercise caution when working with metal tools around batteries to avoid sparks or short circuits.
Follow installation procedures carefully when disconnecting AC or DC terminals.
The unit is protected by fuses (5 pieces of 30A) for battery supply over-current protection.
Ensure the unit is connected to a permanent grounded wiring system.
Never cause AC output and DC input to short circuit.
Only qualified service personnel should service the device.

Warning Marks:

Symbols	Name	Instruction
⚠	Danger	Serious physical injury or even death may occur if not follow the relative requirements.
❗	Warning	Physical injury or damage to the device may occur if not follow the relative requirements.
⚡	Electrostatic sensitive	Damage may occur if not follow the relative requirements.
?	Hot surface	Sides of the device may become hot. Do not touch.
ℹ️	Note	The procedures taken for ensuring proper operation.

Introduction

The Felicitysolar IVCM Series is a multi-function inverter/charger that combines inverter, MPPT solar charger, and battery charger functions to provide uninterruptible power. It features a comprehensive LCD display and easy-to-use button operation for configuring settings such as battery charging current, AC/solar charger priority, and acceptable input voltage.

Features:

Pure sine wave inverter
Built-in MPPT solar charge controller
Configurable input voltage range
Configurable battery charging current
Configurable AC/Solar charger priority
Compatible with mains voltage or generator power
Auto restart when AC recovers
Overload, over-temperature, and short circuit protection
Cold start function
Turbo mode (available in APL mode for up to three times the maximum rated load, depending on the model)

Basic System Architecture:

A typical system includes the inverter/charger, generator or utility power, and PV modules (optional). Consult your system integrator for specific system architectures.

The inverter can power various appliances in home or office environments, including motor-type appliances.

Product Overview

The unit features an LCD display, indicator lights for inverter and charging status, fault/warning indicators, and function keys (UP, DOWN, ENTER, ESC). It also includes various ports for battery connection, PV input, AC output, AC input, WiFi, and RS485 communication.

Key Components:

1. LCD display
2. Inverter or Utility indicator
3. Charging indicator
4. Fault or warning indicator
5. ESC button
6. UP button
7. DOWN button
8. ENTER button
9. Input breaker
10. Fan
11. AC output port
12. AC input port
13. Battery connection port
14. PV input connection port
15. Wifi port
16. RS485 communication port
17. Dry contact port
18. Switch

Specifications

Detailed specifications for Line Mode, Utility Charge Mode, and Inverter Mode are provided, including models (IVCM1012, IVCM2024, IVCM3024), rated power, input/output voltages, frequencies, efficiencies, protection features, and charging algorithms.

Key Specifications:

Line Mode: Rated output power ranges from 1000VA/1000W to 3000VA/3000W.
Utility Charge Mode: Nominal input voltage is 230Vac, with a wide input voltage range. Max charge current is adjustable.
Inverter Mode: Pure sine wave output. Efficiency up to 93%. Surge ratings vary by model.
General Specifications: Operating temperature range is -10°C to 55°C.

Installation

Proper installation is crucial for the safe and efficient operation of the inverter.

Safety Guidance:

Confirm the product package is intact upon receipt.
Installation and operation should be performed by trained professionals.
Do not perform connections or inspections while the power source is applied. Disconnect breakers and wait 5 minutes.
Ensure the installation site is free from strong electromagnetic interference.
Do not modify the inverter without authorization.
All electrical installations must comply with local and national electrical standards.
Avoid touching the inverter housing or radiator during operation as they may become hot.
Ensure proper grounding before operation.
Do not open the surface cover unless authorized. Take anti-electrostatic measures.
Ensure the inverter is reliably grounded.
Disconnect DC and AC side circuit breakers and wait at least 5 minutes before wiring and checking.

Unpacking and Inspection:

Inspect the unit for any damage. Ensure you have received the unit and the user manual.

Preparation:

Before connecting wiring, remove the bottom cover by unscrewing two screws.

Mounting the Unit:

Mount on a solid surface, not on flammable materials.
Install at eye level for easy LCD display access.
Maintain an ambient temperature between -10°C and 55°C.
Mount vertically on the wall.
Ensure sufficient clearance around the unit for heat dissipation and wire access (refer to diagram).
Suitable for mounting on concrete or other non-combustible surfaces only.

Battery Connection:

Install a separate DC over-current protector or disconnect device between the battery and inverter.
Use appropriate cable sizes for system safety and efficient operation.
Recommended cable and terminal sizes are provided for different models (1KW/2KW, 3KW).
Connect battery cables ensuring correct polarity and secure tightening.

AC Input/Output Connection:

Install a separate AC breaker between the inverter and the AC input power source.
Use recommended cable sizes for AC connections.
Connect AC input wires according to polarity and tighten terminal screws. Ensure the PE protective conductor is connected first.
Connect AC output wires according to polarity and tighten terminal screws. Ensure the PE protective conductor is connected first.
Ensure wires are securely connected.
Be sure to connect AC wires with correct polarity to avoid utility short-circuiting in parallel operation.
Allow a 2-3 minute delay for appliances like air conditioners to restart after a power interruption to prevent damage.

PV Connection:

Install a DC circuit breaker between the inverter and PV modules before connecting.
Use appropriate cable for PV module connection.
Ensure PV module open circuit voltage (Voc) does not exceed the inverter's maximum PV array open circuit voltage.
Ensure the maximum power voltage (Vmp) is within the PV array MPPT voltage range.
Connect PV module cables with correct polarity.

Final Assembly:

After all wiring is connected, replace the bottom cover by screwing in the two screws.

Dry Contact Signal:

A dry contact port on the rear panel can signal external devices when battery voltage reaches a warning level. It has Normally Closed (NC), Common (C), and Normally Open (NO) contacts.

Operation

Power ON/OFF:

Press the On/Off switch on the left side of the unit to turn it on after installation and battery connection.

Operation and Display Panel:

The front panel features an LCD display, three indicators (Inverter, Battery, Fault), and four function keys (UP, DOWN, ENTER, ESC) for monitoring and controlling the unit.

LED Indicators:

Inverter LED: On in off-grid mode; flashes in mains mode.
Battery LED: Flickers when charging; solid on when battery is full; off when not charging or battery is low.
Fault LED: Solid on for fault events; flashes for warning events.

Buzzer Information: The buzzer provides audible alerts for power on/off, button presses, fault events, and warning events.

LCD Display Icons:

The LCD displays various information, including:

Input Source Information: Input voltage, frequency, PV voltage, PV power, battery voltage, and charger current.
Output Information: Output voltage, frequency, load percentage, load in VA, load in Watt, and discharging current.
Battery Information: Battery level (0-100%) and battery type (Lithium indicator).
Mode Operation Information: Indicates BYPASS, Utility, Load Output, Inverter/Charger working, PV panels, and PV MPPT working status.
Mute Operation: Indicates if unit alarm is disabled.
Configuration Program and Fault Information: Displays setting programs, warning codes, and fault codes.

LCD Operation Flow Chart

The document provides a flow chart illustrating how to navigate the LCD menus to view base information, rated information, and access setting pages.

Base Information Page:

Displays input voltage/output voltage, input frequency/output voltage, PV voltage/output voltage, and PV power/output voltage.

Rated Information Page:

Displays rated VA/Watt, rated battery voltage/max charge current, firmware version, and max PV voltage/max MPPT current.

Setting Page:

Allows users to configure various settings, including:

Exit setting
Output voltage setting
Output frequency setting
Utility input range setting
Output source priority (PV first, PV and Utility, PV Only)
Charger priority (PV first, PV and Utility, PV Only)
Max charging current
Max utility charging current setting
Battery type setting (AGM, Flooded, Self-defined, Lithium)
Bulk charging voltage setting
Floating charging voltage
Low DC cut-off voltage
Setting battery voltage point back to utility when selecting "SBU" priority
Setting battery voltage point back to battery when selecting "SBU" priority
Fully charged mode when battery is at floating stage
Overload bypass function
Overload restart function
Over-temperature restart function
Backlight of LCD
Auto return to the first page of display screen
Buzzer alarm
Turbo Mode

Turbo Mode

Turbo mode is automatically activated to prevent operation failure caused by charging overload protection. It allows the product to power high-power devices at the rated output power. Note the following:

Turbo mode is enabled by default but can be disabled via settings or the APP.
Turbo mode is disabled when the mains is connected (mains mode), when the mains is set to UPS mode, or when Turbo mode is set to off.
Turbo mode is suitable for heating and motor equipment but not for all appliances, especially those with voltage protection. Confirm compatibility through actual testing.

Warning Code Table

This table lists warning codes, their information, audible alarms, and troubleshooting steps for various events such as PV charging overcurrent, high PV voltage, fan lock, overload, low battery, and communication faults.

Fault Code Table

This table lists fault codes and troubleshooting steps for events such as battery voltage too high/low, output short circuit, OP current sensor failure, bus voltage issues, and overtemperature.

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