REVOV OG-3.6 User guide

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ABOUT THIS MANUAL
Purpose
This manual describes the assembly, installation, operation and troubleshooting of this
unit. Please read this manual carefully before installations and operations. Keep this manual
for future reference.
Scope
This manual provides safety and installation guidelines as well as information on tools and
wiring.
SAFETY INSTRUCTIONS
WARNING: This chapter contains important safety and operating instructions. Read and
keep this manual for future reference.
Before using the unit, read all instructions and cautionary markings on the unit, the batteries
and all appropriate sections of this manual.
CAUTION --To reduce risk of injury, charge only deep-cycle lead acid type rechargeable
batteries. Other types of batteries may burst, causing personal injury and damage.
Do not disassemble the unit. Take it to a qualied service center when service or repair is
required. Incorrect re-assembly may result in a risk of electric shock or re.
To reduce risk of electric shock, disconnect all wirings before attempting any maintenance
or cleaning. Turning o the unit will not reduce this risk.
CAUTION – Only qualied personnel can install this device with battery.
NEVER charge a frozen battery.
For optimum operation of this inverter/charger, please follow required spec to select
appropriate cable size. It’s very important to correctly operate this inverter/charger.
Be very cautious when working with metal tools on or around batteries. A potential risk exists
to drop a tool to spark or short circuit batteries or other electrical parts and could cause an
explosion.
Please strictly follow installation procedure when you want to disconnect AC or DC
terminals. Please refer to INSTALLATION section of this manual for the details.
Fuses are provided as over-current protection for the battery supply.
GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent
grounded wiring system. Be sure to comply with local requirements and regulation to install
this inverter.
NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when
DC input short circuits.
WARNING!! Only qualied service persons are able to service this device. If errors still persist
after following troubleshooting table, please send this inverter/charger back to local dealer
or service center for maintenance.
WARNING: Because this inverter is non-isolated, only three types of PV modules are
acceptable: single crystalline, poly crystalline with class A-rated and CIGS modules. To

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avoid any malfunction, do not connect any PV modules with possible current leakage to
the inverter. For example, grounded PV modules will cause current leakage to the inverter.
When using CIGS modules, please be sure NO grounding.
CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will
cause damage on inverter when lightning occurs on PV modules.
INTENDED USE
This product is a battery inverter that controls the electrical energy balance in an o-grid
system, in a battery backup system or in a system for increased self-consumption. In a
battery-backup system, you can also use this product for increased self-consumption.
The product is for use in weather-protected outdoor areas and in indoor areas. The product
must only be used as stationary equipment
This product is not suitable for supplying life-sustaining medical devices. A power outage
must not lead to personal injury. AC sources (such as PV inverters) can be used in o-grid
systems and battery-backup systems for energy supply.
INTRODUCTION
This is a multi-function inverter, combining functions of inverter, solar charger and battery
charger to oer uninterruptible power support in a single package. This inverter that
controls the electrical energy balance in an o-grid system, in a battery backup system
or in a system for increased self-consumption. The comprehensive LCD display oers user-
congurable and easy-accessible button operations such as battery charging current, AC
or solar charging priority, and acceptable input voltage based on dierent applications.
Features
Pure sine wave inverter
• Congurable color for the built-in RGB LED bar
• Built-in Wi-Fi for mobile monitoring (APP is required)
• Supports USB On-the-Go function  Built-in anti-dusk kit
• Detachable LCD control module with multiple communication ports for BMS (RS485,
CAN-BUS, RS232)
• Congurable input voltage ranges for home appliances and personal computers via
LCD control panel
• Congurable AC/PV output usage timer and prioritization  Congurable AC/Solar
charger priority via LCD control panel
• Congurable battery charging current based on applications via LCD control panel
• Compatible to utility mains or generator power  Auto restart while AC is recovering
• Overload / Over temperature / short circuit protection
• Smart battery charger design for optimized battery performance
• Cold start function

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• Basic System Architecture
• The following illustration shows basic application for this unit. It also requires the
following devices to have a complete running system:
• Generator or Utility mains.
• PV modules
• Consult with your system integrator for other possible system architectures depending
on your requirements.
• This inverter can power various appliances in home or oice environment, including
motor-type appliances such as tube light, fan, refrigerator, and air conditioners.
Depending on dierent power situations, this hybrid inverter is designed to generate
continuous power from PV solar modules (solar panels), battery, and the utility. When MPP
input voltage of PV modules is within acceptable range (see specication for the details),
this inverter is able to generate power to feed the grid (utility) and charge battery. Galvanic
isolation designed between PV/DC and AC output, so that user could connect any type of
PV array to this Hybrid inverter. See Figure 1 for a simple diagram of a typical solar system
with this hybrid inverter.
Figure 1 Basic hybrid PV System Overview

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Product Overview
NOTE: For parallel model installation and operation, please check Appendix I.
1. LCD display
2. Status indicator
3. Charging indicator
4. Fault indicator
5. Function buttons
6. Power on/o switch
7. AC input connectors
8. AC output connectors (Load
connection)
9. PV connectors
10. Battery connectors
11. Remote LCD module communication
port
12. Current sharing port
13. Parallel communication port
14. Dry contact
15. USB port as USB communication port and
USB function port
16. BMS communication port: CAN, RS-485 or
RS-232
17. Output source indicators (refer to
OPERATION/Operation and Display Panel
section for details) and USB function
setting reminder (refer to OPERATION/
Function Setting for the details)
18. RS-232 communication port
19. RGB LED bar (refer to LCD Setting section
for the details

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INSTALLATION
Unpacking and Inspection
Before installation, please inspect the unit. Be sure that nothing inside the package is
damaged. You should have received the following items inside of package:
Preparation
Before connecting all wirings, please take o bottom cover by removing two screws. When
removing the bottom cover, carefully remove three cables as shown below.

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Mounting the Unit
Consider the following points before selecting where
to install:
• Do not mount the inverter on ammable
construction materials.
• Mount on a solid surface
• Install this inverter at eye level in order to allow
the LCD display to be read at all times.
• The ambient temperature should be between
0°C and 55°C to ensure optimal operation.
• The recommended installation position is to be
adhered to the wall vertically.
• Be sure to keep other objects and surfaces as
shown in the right diagram to guarantee
suicient heat dissipation and to have enough
space for removing wires.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.
Install the unit by screwing four screws. It’s recommended to use M4 or M5 screws.
Battery Connection
CAUTION: For safety operation and regulation compliance, it’s requested to install a
separate DC over-current protector or disconnect device between battery and inverter. It
may not be requested to have a disconnect device in some applications, however, it’s still
requested to have over-current protection installed. Please refer to typical amperage in
below table as required fuse or breaker size.

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WARNING! All wiring must be performed by a qualied
personnel.
WARNING! It’s very important for system safety and
eicient operation to use appropriate cable for battery
connection. To reduce risk of injury, please use the proper
recommended cable and terminal size as below.
WARNING! With lead-acid batteries, the battery room
must be ventilated in accordance with the requirements
of the battery manufacturer and with the locally
applicable standards and directives. If connecting a
lithium-ion battery, the following must be observed:
• The lithium-ion battery must comply with the locally applicable standards and
directives and be intrinsically safe.
• The battery management of the lithium-ion battery is compatible with the inverter.
Please follow below steps to implement battery connection:
1. Assemble battery ring terminal based on recommended battery cable and
terminal size.
2. Insert the ring terminal of battery cable atly into battery connector of inverter and
make sure the nuts are tightened with torque of 5 Nm. Make sure polarity at both the
battery and the inverter/charge is correctly connected and ring terminals are tightly
screwed to the battery terminals.
Recommended battery cable and terminal size:
Model Typical
Amperage
Battery
Capacity
Wire Size Cable
mm²
Ring Terminal Torque
Value
Dimensions
D (mm) L (mm)
OG – 3.6 167A 250Ah 1 * 1/0AWG 50 8.4 47 5Nm
OG 7.2 164.8A 1 * 1/0AWG 50 8.4 47

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AC Input/Output Connection
CAUTION!! Before connecting to AC input power source, please install a separate AC
breaker between inverter and AC input power source. This will ensure the inverter can be
securely disconnected during maintenance and fully protected from over current of AC
input.
CAUTION!! There are two terminal blocks with “IN” and “OUT” markings. Please do NOT mis-
connect input and output connectors.
WARNING! All wiring must be performed by a qualied personnel.
WARNING! It’s very important for system safety and eicient operation to use appropriate
cable for AC input connection. To reduce risk of injury, please use the proper
recommended cable size as below.
Suggested cable requirement for AC wires
Model Gauge Torque Value
OG – 3.6 12 AWG 1.2 – 1.6Nm
OG – 7.2 8 AWG 1.4 – 1.6Nm
Please follow below steps to implement AC input/output connection:
1. Before making AC input/output connection, be sure to open DC protector or
disconnector rst.
2. Remove insulation sleeve 10mm for six conductors. And shorten phase L and neutral
conductor N 3 mm.
3. Insert AC input wires according to polarities indicated on terminal block and tighten the
terminal screws. Be sure to connect PE protective conductor rst.
4. G - Ground – Yellow/Green
5. L – Live – Brown/Black
6. N – Neutral – Blue
4. Then, insert AC output wires according to polarities indicated on terminal block and
tighten terminal screws. Be sure to connect PE protective conductor rst.
G - Ground – Yellow/Green
L – Live – Brown/Black
N – Neutral – Blue

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5. Make sure the wires are securely connected.
CAUTION: Important
Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it
may cause the utility to be short-circuited when these inverters are in parallel operation.
CAUTION: Appliances such as air conditioner requires at least 2~3 minutes to restart
because it’s required to have enough time to balance refrigerant gas inside of circuits.
If a power shortage occurs and recovers in a short time, it will cause damage to your
connected appliances. To prevent this kind of damage, please check manufacturer of
air conditioner if it’s equipped with time-delay function before installation. Otherwise,
this inverter/charger will be triggered overload fault and cut o output to protect your
appliance but sometimes it still causes internal damage to the air conditioner.
CAUTION: Important
When input source is a generator, it’s suggested to choose the generator by following
parameters:
- The recommended generator rating should be at least 2X of inverter capacity.
- Generator output: Pure Sine Wave
- Generator output voltage rms range: 180 ~ 270Vac
- Generator output frequency range: 45Hz ~ 63Hz
It’s recommended to test the generator with the inverter before the installation. Some
generators that comply with the above parameters may still not be accepted by the
inverter as the input source.
PV Connection
CAUTION: Before connecting to PV modules, please install separately DC circuit breakers
between inverter and PV modules.
NOTE 1: Please use 600VDC/30A circuit breaker.
NOTE 2: The overvoltage category of the PV input is II. Please follow the steps below to
implement PV module connection:
WARNING: Because this inverter is non-isolated, only three types of PV modules are
acceptable: single crystalline and poly crystalline with class A-rated and CIGS modules.
To avoid any malfunction, do not connect any PV modules with possible current leakage to
the inverter. For example, grounded PV modules will cause current leakage to the inverter.
When using CIGS modules, please be sure NO grounding.

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CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will
cause damage on inverter when lightning occurs on PV modules.
Step 1: Check the input voltage of PV array modules. This system is applied with two strings
of PV array. Please make sure that the maximum current load of each PV input connector is
18A.
CAUTION: Exceeding the maximum input voltage can destroy the unit!! Check the system
before wire connection.
Step 2: Disconnect the circuit breaker and switch o the DC switch.
Step 3: Assemble provided PV connectors with PV modules by the following steps.
Components for PV connectors and Tools:
Prepare the cable and follow the connector
assembly process:
Strip one cable 8 mm on both end sides and be
careful NOT to nick conductors.
Insert striped cable into female terminal and crimp female terminal as shown below
Insert assembled cable into female connector housing as shown below.
Insert striped cable into male terminal and crimp male terminal as shown below.
Insert striped cable into male terminal and crimp male terminal as shown below.

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WARNING! For safety and eiciency, it’s very important to use appropriate cables for
PV module connection. To reduce risk of injury, please use the proper cable size as
recommended below.
Insert assembled cable into male connector housing as shown below.
Then, use spanner to screw pressure dome tightly to female connector and male
connector as shown below.
Step 4: Check correct polarity of connection cable from PV modules and PV input
connectors. Then, connect positive pole (+) of connection cable to positive pole (+) of
PV input connector. Connect negative pole (-) of connection cable to negative pole
(-) of PV input connector.
Conductor cross section (mm²) AWG no.
4 – 6 10 – 12

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CAUTION: Never directly touch the terminals of inverter. It might cause lethal electric shock.
Recommended Panel Conguration
When selecting proper PV modules, please be sure to consider the following parameters:
1. Open circuit Voltage (Voc) of PV modules not to exceed maximum PV array open
circuit voltage of the inverter.
2. Open circuit Voltage (Voc) of PV modules should be higher than the start-up voltage.
Recommended solar panel conguration for OG-3.6 model:
INVERTER MODEL OG – 3.6 OG – 7.2
Max. PV Array Power 4000W 8000W
Max. PV Array Open Circuit
Voltage
500VDC
PV Array MPPT Voltage Range 120 – 450VDC 90 – 450VDC
Start Up Voltage (Voc) 150VDC 80VDC
Solar Panel Spec.
(reference)
- 250Wp
- Vmp:30.1VDC
- Imp: 8.3A
- Voc: 37.7VDC
- Isc: 8.4A
- Cells: 60
SOLAR INPUT Q’ty’s of
panels
Total input
power
Min in series: 6 pcs, max.
in series: 12 pcs
6 pcs , in series 6 pcs 1500W
8 pcs, in series 8 pcs 2000W
12 pcs, in series 12 pcs 3000W
8 pieces in series and 2 sets in parallel 16 pcs 4000W

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Recommended solar panel conguration for OG-7.2 model:
Solar Panel Spec.
(reference)
- 250Wp
- Vmp: 30.7VDC
- Imp: 8.3A
- Voc: 37.7VDC
- Isc: 8.4A
- Cells: 60
SOLAR INPUT 1 SOLAR INPUT 2 Q’ty of
panels
Total Input
Power
Min. in series: 4pcs, per input
Max. in series: 12pcs, per unit
4pcs in series X4pcs 1000W
X4pcs in series 4pcs 1000W
12pcs in series X12pcs 3000W
X12pcs in series 12pcs 3000W
6pcs in series 6pcs in series 12pcs 3000W
6pcs in series, 2
strings
x12pcs 3000W
X6pcs in series, 2 strings 12pcs 3000W
8pcs in series, 2
strings
X16pcs 4000W
X8pcs in series, 2 strings 16pcs 4000W
9pcs in series, 1 string 9pcs in series, 1 string 18pcs 4500W
10pcs in series,
1 string
10pcs in series,
1 string
20pcs 5000W
12pcs in series,
1 string
12pcs in series,
1 string
24pcs 6000W
6pcs in series, 2 string 6pcs in series, 2 string 24pcs 6000W
7pcs in series, 2 string 7pcs in series, 2 string 28pcs 7000W
8pcs in series, 2 string 8pcs in series, 2 string 32pcs 8000W
Final Assembly
1. After connecting all wirings, re-connect three cables and then put bottom cover back
by screwing two screws as shown below.

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Remote Display Panel Installation
The LCD module can be removable and installed in a remote location with an optional
communication cable. Please take the follow steps to implement this remote panel
installation.
Step 1. Remove the screw on the bottom of LCD module and pull down the module from
the case. Detach the cable from the original communication port. Be sure to replace the
retention plate back to the inverter.
Step 2. Prepare your mounting holes in the marked locations as shown in the illustration
below. The LCD module then can be securely mounted to your desired location.

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Note: Wall installation should be implemented with the proper screws to the right.
Step 3. After LCD module is installed, connect LCD module to the inverter with an optional
RJ45 communication cable as shown below
Communication Connection
Serial Connection
Please use the supplied serial cable to connect between the inverter and your PC. Install
the monitoring software from the bundled CD and follow the on-screen instructions to
complete your installation. For detailed software operation, refer to the software user
manual on the bundled CD.
Wi-Fi Connection
This unit is equipped with a Wi-Fi transmitter. Wi-Fi transmitter can enable wireless
communication between o-grid inverters and monitoring platform. Users can access
and control the monitored inverter with downloaded APP. You may nd “WatchPower”
app from the Apple® Store or “WatchPower Wi-Fi” in Google® Play Store. All data loggers
and parameters are saved in iCloud. For quick installation and operation, please check
Appendix III.
Dry Contact Signal

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There is one dry contact (3A/250VAC) available on the rear panel. It could be used to
deliver signal to external device when battery voltage reaches warning level.
BMS Communication
It is recommended to purchase a special communication cable if you are connecting to
Lithium-Ion battery banks. Please refer to Appendix II- BMS Communication Installation for
details.
OPERATION
Power ON/OFF
Once the unit has been properly installed and the batteries are connected well, simply
press On/O switch (located on the display panel) to turn on the unit.
Inverter Turn-on
After this inverter is turned on, WELCOME light show will be started with RGB LED BAR. It will
slowly cycle through entire spectrum of nine colors (Green, Sky blue, Royal blue, Violet, Pink,
Red, Honey, Yellow, Lime yellow) about 10-15 seconds. After initialization, it will light up with
default color.
RGB LED BAR can light up in dierent color and light eects based on the setting of energy
priority to display the operation mode, energy source, battery capacity and load level.
These parameters such as color, eects, brightness, speed and so on can be congured
through the LCD panel. Please refer to LCD settings for the details.

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Operation and Display Panel
The operation and the LCD module, shown in the chart below, includes six indicators, six
function keys, on/o switch and a LCD display to indicate the operating status and input/
output power information.
Function Keys
Indicators

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LCD Display Icons

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