SOLAR

INVERTER CHARGER
48V Pure Sine Wave Solar Inverter & Charger

3500w Version 1.1

 Important Safety Instructions
Please save these instructions.

This manual contains all safety, installation and operating instructions for the Solar Inverter
Charger. The following symbols are used throughout the manual:

Indicates a potentially dangerous condition. Use extreme caution

when performing this task.

Indicates a critical procedure for safe and proper operation of the

inverter.

Indicates a procedure or function that is important to the safe and

proper operation of the inverter.

General Safety Information

Installation and wiring must comply with the Local and National Electric Codes (NEC) and
must be done by a certified technician.

Read all of the instructions and cautions in the manual before beginning the installation.

There are no serviceable parts for this inverter. Do NOT disassemble or attempt to repair
the inverter.

Make sure all connections going into and from the inverter are tight. There may be sparks
when making connections, therefore, make sure there are not flammable materials or
gases near installation.

DO NOT attempt to touch the unit while it is operating as temperatures will be very hot. In
addition, do not open the terminal cover while the unit is in operation.

Installing breakers or fuses outside of the unit is recommended.

After installation, check that all line connections are tight and secured.

DO NOT parallel this device with other AC input sources to avoid damage.
 Battery Safety

Do NOT let the positive (+) and negative (-) terminals of the battery touch each other.

Use Lithium batteries or deep cycle Sealed Lead Acid, Flooded, Gel, AGM batteries.

Explosive battery gases may be present while charging. Be certain there is enough
ventilation to release the gases.

Be careful when working with large lead acid batteries. Wear eye protection and have fresh
water available in case there is contact with the battery acid.

Over-charging and excessive gas precipitation may damage the battery plates and activate
material shedding on them. Too high of an equalizing charge or too long of one may cause
damage. Please carefully review the specific requirements of the battery used in the
system.

Installation Safety

The unit should be installed in a well-ventilated, cool, and dry environment. Make sure
the fans of the unit and the ventilation holes are not blocked.

Do not expose the unit to rain, moisture, snow, or liquids of any type.
 Table of Contents

Important Safety Instructions 01

General Information 04
Key Features 04
Battery Charging Modes 05
Load Output Working Modes 07
Product Overview 08
Dimensions 09
Optional Components 09
Installation 10
Location Recommendations 10
Wiring 12
Battery Wiring 13
PV Wiring 14
AC Output Wiring 15
AC Input Wiring 16
Communication Ports 17
Dry Contacts 17
RS485 17
CAN 17
USB 17
Operation 18
LCD Operation 18
LCD Menu 22
LCD Programmable Features 23
Electronic Protections 29
Fault Codes 30
Maintenance 31
Technical Specifications 32
Non-Lithium Battery Parameters 34
Lithium Battery Parameters 35
Charging Parameters Glossary 37
 General Information

The new all-in-one Renogy Solar Inverter Charger is an advanced hybrid system combining
the advanced charging algorithm of solar and industrial reliability and electrical energy of
pure sine wave inverters to give you a complete power system. The unit features 4 charging
modes and 3 output modes to meet an array of application needs. Utilizing the latest MPPT
tracking technology, the solar charging module can quickly track the maximum power point
of the photovoltaic array in any environment, capturing the maximum energy of solar panels
in real time. The AC-DC charging module adopts an advanced control algorithm resulting in
a powerful battery charger. The DC-AC inverter module is based on an all-digital intelligent
design, using advanced SPWM technology to output pure sine wave converting direct
current into alternating current, suitable for ac loads such as household appliances, power
tools, and industrial equipment.The product adopts a segment LCD display design, which
displays the operating data and operating status of the system. Lastly, the solar inverter
charger has comprehensive electronic protections to ensure that the entire system is more
secure and stable.

Key Features

Powerful bypass function with uninterrupted power supply function.

4 charging modes: PV Priority, Utility Priority, Hybrid Charging, Only Solar.
State-of-the-art MPPT technology with efficiency of up to 99.9%.
Dynamic LCD display and intelligent LEDs providing important system information.
Manual ON/OFF switch controlling AC output.
Power saving mode function, reduce empty load loss.
Adjustable fan, efficient heat dissipation, extending the life of the system.
Supports lead-acid battery and lithium battery types.

Complete electronic protection including: short-circuit protection, over-voltage protection,

overload protection and more!
 PV

UTILITY

48V Battery Storage

Photovoltaic Modules (PV): convert light energy into DC power, charge the battery through
the solar inverter charger, or directly reverse into alternating current to power the load.

Power or generator (Utility): Access at the AC input can power the load and charge the
battery. If you do not have a power supply or generator, the system can also operate normally,
where the load is supplied by batteries and photovoltaic modules.

Battery: The role of the battery is to ensure the normal use of electricity for the system load
when the solar energy is insufficient and there is no electricity.

Household load: Can be accessed to a variety of household and office loads, including
refrigerators, lamps, televisions, fans, air conditioning and other AC loads.

Battery Charging Modes:

The solar inverter will have 4 operational charging modes which changes the logic as how and
when to charge the battery banks. The solar inverter has four working modes: PV priority, Utility
Priority, Hybrid Charging, and Only Solar Charging.

PV Priority
In PV Priority mode it will make full use of the solar input during the day in order to charge the
battery bank. This effectively allows using the unit off-grid during peak utility times in order to
cut costs on utility charging. Only when solar fails to start or is interrupted will the unit
automatically switch to utility mode for backup.

CHARGING CHARGING
Utility Priority
In Utility Priority mode, the detected AC input will be priority for battery charging. If the power
becomes unstable or unusable, then it will switch to PV charging.

CHARGING CHARGING

Hybrid Charging
In Hybrid Charging, PV and Utility will work together to charge the battery bank at the same
time. Priority will be given to PV and utilize MPPT charging. Upon PV charging being
insufficient, the power supply replenishes with Utility power. This method is the fastest to
charge and suitable for unstable areas of the grid, ready to provide adequate backup power
supply.

CHARGING CHARGING

Only Solar Charging

Only solar charging is the most energy-efficient way to charge your battery bank and does not
make use of AC input. Utility will not charge the battery, even if it is available.

CHARGING
 Load Output Working Modes
The solar inverter has 3 working modes that dictate how the incoming power is used to power
the loads.Users may configure the output source priority to configure load power.

PV Priority
In this mode only the incoming solar energy and battery power are used to power the loads.
This can maximize the use of green energy when selecting PV priority in Battery Charging
Mode to achieve overall energy conservation and emission reduction. Upon there being no
more usable solar energy or the battery voltage drops to a low voltage setpoint, then the unit
will switch to utility power to continue to power up the loads. It is recommended to be in this
mode for relatively stable areas.

CHARGING

Utility Priority
Equivalent to a backup UPS for use in unstable areas of the grid, Utility will provide power to
the loads as priority. Solar and battery energy will provide power to the loads only when utility
power is not available.

CHARGING

Inverter Mode
The Battery energy will supply power to the loads. Utility provides power to the loads only when
battery voltage drops to low voltage which maximizes the use of DC power.

CHARGING
 Product Overview

Identification of Parts

4
1

10 11
9 12
8
7 13
6 14
5 15

Key Parts

1. LCD Buttons 9. AC Input Terminal

2. Mounting Holes 10. AC Output Terminal
3. LCD Screen 11. Cooling Fans
4. LED Indicators 12. PV Input Terminal
5. AC Input Breaker 13. Main On/Off Power Switch
6. Dry Contact Port 14. Battery Input Terminal
7. RS485/CAN Communication Port 15. Grounding Lug
8. USB Debugging Port (Internal Use)
 Dimensions

φ0.2in
φ6mm
12.7in 4.9in
322mm 0.2in 124mm
6mm

φ0.4in
φ11mm
426mm
16.8in

Optional Components
Renogy BT-2 Bluetooth Module:
The BT-2 Bluetooth module is a great addition to any Renogy charge
controllers with a RS485 port and is used to pair charge controllers with the
Renogy BT App. After pairing is done you can monitor your system and
change parameters directly from you cell phone or tablet. No more
wondering how your system is performing, now you can see performance
in real time without the need of checking on the controller’s LCD.
 Installation

Please read this manual carefully and familiarize yourself with the installation procedures
before installation.

Indicates a potentially dangerous condition. Use extreme caution

when performing this task.

Indicates a critical procedure for safe and proper operation of the

inverter.

Indicates a procedure or function that is important to the safe and

proper operation of the inverter.

Location Recommendations
Never install the inverter in a sealed enclosure with flooded batteries. Gas can
accumulate and there is a risk of explosion.

Ensure installation follows the following guidelines:

1. Cool, dry, well-ventilated area — Heat is the worst enemy for electronic equipment.
Inverters must be in an area where the fans are not blocked or where they are not
exposed directly to the sun. They should be in an area free of any kind of moisture and
allow for clearance of at least 8” around the unit to provide adequate ventilation.
2. Protection against fire hazard — the unit should be away from any flammable
material, liquids, or any other combustible material. The unit can spark and the
consequences could be severe.
3. Close proximity to battery bank—prevent excessive voltage drop by keeping the unit
close to the battery bank and having a properly sized wire going from the battery bank
to the inverter.
4. Do not install the inverter in the same compartment as the battery bank
because it could serve as a potential fire hazard.
5. Limiting electromagnetic interference (EMI) — ensure the inverter is firmly grounded
to a building, vehicle, or earth grounded. Keep the inverter away from EMI receptors
such as TVs, radios, and other audio/visual electronics to prevent damage/interference
to the equipment.
Other Precautions:

When installing the battery, be very careful, when installing lead-acid liquid batteries, you should
wear protective glasses, once in contact with battery acid, please wash with water in time.
Avoid placing metal objects near the battery to prevent short circuits in the battery.
Acid gas may be generated when the battery is charged so ensure good ventilation around
the environment.
Incorrect or improper connection points and corroded wires can cause great heat to melt the wire
insulation, burning surrounding materials, and even cause fire, so ensure that the connection is
tightened

It is best to avoid mobile applications when the wire shakes and cause the connection head loose.
Outdoor installation should avoid direct sunlight and rain, snow.
Do not install the solar inverter in harsh environments such as damp, greasy, flammable and
explosive areas or where dust accumulation is high.
The municipal electrical input and AC output are high voltage, do not touch the wiring.
Do not touch the unit when the fan is working.
To avoid damage, do not use more than one (in parallel) input AC power supply.

8inches / 200mm

8inches 8inches
200mm 200mm

8inches / 200mm

Please Note: While the Solar inverter has fans for cooling, this installation location optimal for
natural convection cooling will improve the overall efficiency .
 Wiring

The Renogy Solar Inverter is suitable for 48V battery banks systems ONLY. Not
following the minimum DC requirement may cause irreversible damage to the unit.

The solar inverter components at the AC input/output, battery components, and

PV components will produce high energy output. Make sure to connect the
appropriate component to the appropriate labeled terminals.

Be careful of the positive and negative poles. Reversing the poles may cause
permanent damage to the inverter.

The input terminals of the inverters have large capacitors connected to them.
Once a positive and negative wire are connected to the terminals, it will
complete the circuit, and commence drawing a heavy current momentarily. As
a result, there may be a sparking occurring even if the inverter is in the off
position. To minimize sparking, it is recommended that the user have the
appropriate size wire feeding into the solar inverters and/or install an external
fuse leading into the inverter.

After the power switch is switched off, there is still high energy inside the solar
inverter, do not open or touch the internal device, wait for the capacitance to be
put off after the relevant operation.

ON

Locate the power button on the solar

inverter and make sure the solar inverter
main power is turned off

OFF

Remove the terminal cover by unscrewing

the appropriate terminals located on the
face of the solar inverter
Wiring and installation methods must comply with national and local electrical specifications.
The following chart is reference only. Longer wire runs between solar panels and the solar
inverter as well as longer runs between the solar inverter and battery bank will require thicker
wiring size to minimize loss and improve system performance.

Specification Minimum Recommended Max Amps

Wiring AWG
Battery Wiring 2AWG 120A
PV Wiring* 4AWG 80A
AC Input Wiring 8AWG 40A Max Bypass
30A Continuous
AC Output Wiring 8AWG
40A Max Bypass

Battery Wiring
Be careful of the positive and negative poles. Reversing the poles may cause
permanent damage to the inverter.

The input terminals of the inverters have large capacitors connected to them. Once a
positive and negative wire are connected to the terminals, it will complete the circuit,
and commence drawing a heavy current momentarily. As a result, there may be a
sparking occurring even if the inverter is in the off position. To minimize sparking, it is
recommended that the user have the appropriate size wire feeding into the solar
inverters and/or install an external fuse leading into the inverter.

Rated Battery Maximum Battery Recommended Recommended Recommended

Discharge Current Charging Current Wiring Circuit Breaker Ring Terminal

85A 120A 2AWG 2 pole, 140-160A 5/16”

Make sure any circuit breakers are disconnected and ensure the unit is in the off
position.
The solar inverter takes a 48V battery input to operate. This will require combining 12V or 6V
batteries in series to achieve the minimum voltage DC requirement. It is recommended to use
battery cables with ring terminals. The ring terminals must be firmly tightened and secured on
the respective battery terminals to prevent any excessive heating or resistance. Connect the
positive and negative battery ring terminals to the respective positive and negative battery
terminals on the solar inverter.

PV Wiring

Maximum PV Recommended Recommended Recommended

Charging Current Wiring Circuit Breaker Wiring
80A 4AWG 2 pole, 100A Bare Wire

For PV to charge 48V battery banks, you will need a minimum PV Voc voltage of
60VDC.

When combining panels in parallel it is recommended to use a combiner box for safety and
organizational precautions. The solar inverter accepts a maximum of 150VDC input and
requires a 48V battery input to operate. This will require combining solar panels in series or
series parallel to achieve the minimum voltage DC requirement. Due to many factors affecting
PV performance, it is recommended to utilize the open circuit voltage (Voc) when connecting
panels in series to make sure you stay under the 150VDC input. For parallel connections, it is
recommended to use the short circuit current (Isc) to make sure you are well under the 80A limit.

The bare wire terminal blocks must be firmly tightened and secured to prevent any excessive
heating or resistance. Connect the positive and negative PV wire to the respective positive and
negative PV terminal block on the solar inverter.
 AC Output Wiring
Only the Live and Neutral wires will be connected to the Output Terminal Block, the
Ground will be connected to the screw terminal.
Make sure any circuit breakers are disconnected and ensure the unit is in the off
position.

AC Output should NEVER be connected to public power/utility or a generator.

There are two terminal blocks with “IN” and “OUT” markings. Please do NOT
misconnect input and output connectors.

Maximum Inverter Recommended Recommended

Bypass Current Wiring Circuit Breaker
40A 8AWG 2 pole, 40A

Carefully place the correct AC wire into the respective AC Output terminal block. The ground
output cable will need to be connected to the ground screw terminal located separately from the
output terminal block. It is recommended to keep ground as close as possible to the solar
inverter charger, the shorter the ground wire, the better. The order should be as follows:

Ground | LLive | NNeutral

 AC Input Wiring
The AC input must never be connected to the AC output as irreversible overload or
damage may result

The AC Input Terminal Block is connected to circuit breakers for added protection. Do
not modify or alter them as it may cause irreversible damage to the solar inverter.

There are two terminal blocks with “IN” and “OUT” markings. Please do NOT
mis-connect input and output connectors.

Run the AC input line through the AC input cable entry slot. Make sure to use appropriate cable
sizing when working with AC. Carefully place the correct AC wire into the respective AC Input
terminal block. The order should be as follows:

Ground | LLive | NNeutral

 Communication Ports

Dry Contacts
To use this to function, an auto start controller must be installed on the generator.
there are three contacts; up to down: NO, N, NC
Do not store units with auto gen start feature enabled. Generators exhaust
dangerous fumes when running.

This contact automatically starts the generator and charges the battery bank.
NO
Under normal conditions, this terminal is NC-N point closed, NO-N point
N
open. When the battery voltage reaches the low voltage point, the relay coil
NC is energized, and NO-N point now is closed and NC-N point now is open.

the NO-N contact can drive the resistive load of 125VAC/1A,

30DCV/1A
While the generator is connected, the unit now operates in
“Charging Mode” with the AC power from the Generator charging
the batteries as well as providing power to the AC loads.

This port will be used for connecting to the BT-2 Accessory for
RS485/CAN remote monitoring and control.

Pin No. Parameter

1 5V
2 RS485-A
3 RS485-B
4 GND
5 NC
6 CAN_H
7 NC
8 CAN_L

USB The USB port is for internal purposes only. It will not be supported
as it requires proprietary information.

When using both USB and RS485, you can only use one of two alternatives, not use
both simultaneously .
 Operation
ON
Assuming all connections are correct and tightly secured,
Locate the power button on the solar inverter and turn the
main power switch to the ON position.
The following describes the basic operation of the solar inverter charger
OFF

LCD Operation
The solar inverter is equipped with 3 LCD indicators and 4 working buttons

AC/INV CHARGE FAULT

SET UP DOWN ENT

LED Color Behavior Parameter

Solid The output will be powered by the AC Line
AC/INV Yellow
Flash The output is powered by battery or PV in battery mode
Flash Battery is charging
CHARGE Green
Solid Battery is fully charged
FAULT Red Solid / Flash System fault

Key Parameter
SET Go to / Exit Settings menu
UP Previous selection
DOWN Next choice
ENT Under the Settings menu, determine/enter options
 1 20

1
2

40 21

3 4 5 6 7 8

The arrow only displays during

Indicates that the charging circuit
startup and not part of the solar
is charging the battery
inverter functionality

The arrow only displays during

Indicates that the utility/grid is
startup and not part of the solar
powering the load
inverter functionality
Indicates that the power utility/grid Indicates that the battery is
is powering the battery charging powering the inverter circuit
circuit (AC-DC) (DC-AC)

Indicates solar (PV) power to the Indicates that the inverter circuit is
battery charging circuit (DC-DC) powering the load
Icon Function Icon Function
Indicates that the AC input is Indicates that the inverter
connected to AC Source mode circuit is working

This icon indicates a wide Indicates that the solar inverter

voltage AC input Mode (APL charger is in the power bypass
mode) (Bypass)

Indicates that the PV input is Indicates that the inverter

connected circuit is powered to the load

Indicates that the solar Indicates load percentage in

inverter charger is connected 25% increments from the
to the battery. Status: overall wattage of the solar
inverter charger
0 %~24%,
0 %~24%,
25%~49%,
25%~49%,
50%~74%, 50%~74%,

75%~100% ≥75%

Indicates that the current Indicates that the buzzer is

battery type of the solar not enabled
inverter charger is lithium

Indicates that the current Indicates that an alarm has

battery type of the solar occurred on the solar inverter
inverter charger is a sealed charger
lead acid

Indicates that the battery is Indicates that the solar

charging inverter charger is in a faulty
state

Indicates AC/PV charging Indicates that the solar

circuit is working inverter charger is in set
mode

AC Load voltage output When not in setting mode

displays alarm or fault code

Indicates the solar inverter is operating

under ECO power saving mode.
The following is on the left side of the LCD

Indicates AC input

Indicates PV input

Indicates inverter circuit

The icon appears only at startup and is irrelevant to functionality of the

solar inverter

Shows battery voltage, total battery charge current, charge power, AC

input voltage, AC input frequency, PVInput voltage, internal heatsink
temperature, and software version

The following is on the right side of the LCD

Indicates output voltage, output current, output power, output visual

power, battery discharge current, software version. In this setting
mode, the settings under the currently set parameter item code are
displayed
 LCD Menu Screens
On the LCD home screen, press the "UP"and"DOWN" buttons to turn the page to view the solar
inverter’s real-time data.

1 Battery Input Voltage Load Output Voltage

2 PV Temperature PV Output Kilowatts
3 PV Input Voltage PV Output Current
4 Battery Input Current Battery Output Current
5 Battery Input Kilowatts Battery Output Kilowatts
Fault
6 AC Input Frequency AC Output Load Frequency
code
7 AC Input Voltage AC Output Load Current
8 Internal Parameters Load Output KVA
9 Inverter Temperature Inverter Output Load Kilowatts
10 APP Software Version Bootloader Software Version
11 Model PV Voltage Rating Model PV Power Rating
12 Model Battery Voltage Rating Model Output Current Rating
 LCD Programmable Features

Press the "SET" key to enter parameter setting mode. After entering the settings menu, the
parameter number 00 flashes and you can press the "UP" and "DOWN" keys to select the
parameter code that you want to set. To access the parameter program press "ENT" key to
enter the parameter editing state, at which point the value of the parameter flashes. Adjusts the
value of the parameter through the "UP" and "DOWN" buttons, and finally press "ENT" to press
the key, complete the edit of the parameter, and return to the parameter selection state.

Parameters Number Parameter Name Set options Description

00 Exit [00] ESC Exit the settings menu
Solar energy provides power to
the loads as priority. If solar
energy is not enough to power all
connected loads, battery energy
will supply power the loads at the
[01] SOL same time.
Utility provides power to the loads
only when any one condition
happens:
- Solar energy is not available
- Battery voltage drops to
low-level set-point in Program 04
Utility will provide power to the
Load Working loads as priority. Solar and battery
01 Mode [01] UtI energy will provide power to the
Default loads only when utility power is
not available
Solar energy provides power to
the loads as priority. If solar
energy is not enough to power all
connected loads, battery energy
[01] SBU will supply power to the loads at
the same time.
Utility provides power to the loads
only when battery voltage drops to
low-level set-point in Program 04

[02] 50.0 The output frequency can be set

02 Output Frequency through this menu. By default, the
[02] 60.0
value should be 60Hz
(Default)

[03] APL By default, the input voltage range

is the same, 90~140VAC
03 AC Input
Voltage Range [03] UPS By default, the input voltage range
(Default) is the same, 90~140VAC
Parameters Number Parameter Name Set options Description

Setting voltage point back to utility

source when selecting “SBU ” or
“SOL” in program 01. When the
04 Battery Power to 44.0V voltage of the battery is lower than
Utility Setpoint (Default) this setting, the output switches
from inverting to the utility. The
setting range is from 39.6V - 52V,
in 0.4V increments.

Setting voltage point back to

battery mode when selecting
“SBU” or “SOL” in program 01.
When the battery voltage is higher
05 Utility to Battery [05] 58.8V than the setting value, the output
Power setpoint (Default) is switched from the utility to the
battery mode. The setting range is
48V - 58.8V, in 0.4V increments.
*Cannot be higher than [14]

Solar energy will charge battery

[06] CSo as priority. Utility will charge
battery only when solar energy is
Battery Charging not available
Mode
Please Note: If Utility will charge battery as
this [06] Cub priority. Solar energy will charge
inverter/charger is battery only when utility power is
working in Battery not available
mode or Power Solar energy and utility will charge
06 saving mode, only battery at the same time. MPPT
solar energy can Solar energy will be priority
charge battery. [06] SnU
charging and when it is insufficient,
Solar energy will (Default)
Utility will become priority. When the
charge battery if photovoltaic energy is sufficient
it's available and again, Utility will stop charging
enough
Solar energy will be the only
[06] oSo charging source even if utility is
available

Maximum
charging current:
To configure total The maximum solar charging is
charging current 80A, the maximum Grid/Utility
for solar and utility [07] 80A charging is 40A (adjustable in
07 chargers. (Max. Program 28), totaling the
(Default)
charging current = maximum current of 120A.The
utility charging range can be configured
current + solar between 0 ~ 120A
charging current)
Parameters Number Parameter Name Set options Description

User-defined, all battery

[08] USE
parameters can be set

Sealed lead-acid/AGM battery,

[08] SLd
constant voltage charging 58.4V,
(Default)
float charging voltage 55.2V

Flooded lead-acid battery,constant

[08] FLd voltage charging 58.4V,float
charging voltage 55.2V

Gel lead-acid battery, constant

[08] GEL voltage charging 56.8V,float
charging voltage 55.2V

08 Battery type Lithium iron phosphate battery

corresponding to 14 strings, 15
[08] strings and 16 strings
LF14
Default constant voltage charging
LF15 voltage
LF16 14 strings: 50.4V
15 strings: 54V
16 strings: 57.6V

Lithium-ion battery corresponding

to 12 strings, 13 strings and 14
[08] strings
n14 Default constant voltage charging
n13 voltage
13 strings: 53.2V
14 strings: 57.2V

09
*available in USER Boost Charge [09] 58.4 Changes the charging voltage
and lithium setting Voltage (Default) setting, set the range 48V to 58.4V,
only in 0.4V increments

Raise the boost charge time

10 setting, refers to the constant
*available in USER Boost Charge [10] 120 min voltage charging reached at
setting only Duration (Default) Program 09 . The range is 5min
to 900min, in 5 minute increments

11 Floating charging voltage set

Float Charge [11] 55.2V
*available in USER range 48V to 58.4V, in 0.4V
Voltage (Default)
setting only increments
Parameters Number Parameter Name Set options Description

It is recommended to set this

voltage below the maximum
12 voltage the battery can withstand.
*available in USER Low Voltage Load [12] 42V When this voltage is reached, the
and lithium setting Disconnect (Default) loads will be powered off after a
only time delay adjustable in Program
13 The range is 38V to 50V, in
0.4V increments
Battery
Over-discharged
Delay Time
**If a power
shortage occurs
and recovers in a
short time, it can
13 cause damage to The following parameter sets the
*available in USER your connected [13] 5S delay-time after the battery
and lithium setting appliances. To voltage is below the set-point in
prevent this kind (Default)
only Program 12. The set range is 5-50
of damage, seconds, in 5s increments
please check
manufacturer if
heavy load
appliances are
equipped with
time-delay function
before installation

14 Warning that the battery is

*available in USER Battery
[14] 43.8V approaching low voltage. The output
and lithium setting Undervoltage
(Default) does not shut down and the range is
only Alarm
40V to 52V, in 0.4V increments

When the battery voltage goes

15 below this voltage set-point, the
*available in USER Battery Discharge [15] 40V solar inverter will immediately
and lithium setting Limit Voltage (Default) disconnect and shut down
only immediately. The set range is 36V
to 50V, in 0.4V increments

16 [16] DIS No equalization charging

*available in FLD Set Equalization
and USER setting charging [16] ENA
Enables equalization charging
only (Default)

17 Battery Set equalization charging voltage.

*available in FLD Equalization [17] 59.2V
The range is 48V to 59.2V, in 0.4V
and USER setting Voltage (Default)
increments
only
Parameters Number Parameter Name Set options Description
18
Battery
*available in FLD [18] 120min Setting range is from 5min to 900
Equalization
and USER setting (Default) min. , in 5min increments
Duration
only
19
Battery Setting range is from 5min to 900
*available in FLD [19] 240min
Equalization min, in 5min increments
and USER setting (Default)
Time-Delay
only
20
*available in FLD Equalization [20] 30 days Setting range is from 0 days to 30
and USER setting interval (Default) days, in 1 day increments
only
21 [21] DIS Stops equalization charging
Enable
*available in FLD (Default) immediately
Equalization
and USER setting Immediately
[21] ENA Starts Equalization charging
only
immediately
[22] DIS
Disables power-saving mode
Default

22 After a 5min delay from setting, the

inverter will enter a power saving
*Power-saving Power-saving mode and detect the load size.
Mode (ECO Mode) Mode Loads greater than or equal to 50W,
[22] ENA will be powered by the solar inverter.
Otherwise, it will automatically stay in
a low detecting mode and not power
any loads under 50W

Overload automatic restart is

[23] DIS disabled, and the unit will not turn
on the loads

Enables automatic restart if the

23 Overload
load shutdown output has
auto-start
occurred. The unit attempts to
[23] ENA
restart the output after 3 minutes
(Default)
and After 5 attempts the unit will
not longer resume to turn on the
loads

Over-temperature automatic
[24] DIS
re-start is disabled
Overtemperature
24 The over-temperature protection
auto-start
[24] ENA is activated and upon temperature
(Default) dropping, the unit automatically
restarts
Parameters Number Parameter Name Set options Description

[25] DIS No alarm

25 Buzzer alarm
[25] ENA Enable alarm
(Default)

No alarm prompts when the status

[26] DIS of the primary input source
changes
26 Alarm
[26] ENA Enable alarm prompts when the
(Default) status of the primary input source
changes
Overload bypass:
[27] DIS When disabled, the unit will not
When enabled,
transfer to Utility mode
the unit will
27 transfer to line
mode if overload When enabled, the unit will
[27] ENA
occurs in battery transfer to Utility mode if overload
(Default)
mode. occurs in battery mode.

Maximum AC [28] 40A The range can be configured

28 Charging Current Default between 0-40A

[29] DIS Supply for industrial frequency

Default transformer (disabled)
29 Split Phase
Supply for industrial frequency
[29] ENA
transformer (enabled)

Set point that recovers and

Low Voltage reconnects the solar inverter from
35 Disconnect [35] 50.4V being disconnected in Low
Recover (Default) Voltage Disconnect. The range is
from 44V -58.4V, in 0.4V
increments.

PV Charging [36] 80A Adjustable PV current settings.

36 (Default) The range is from 0 – 80A.
Current

When the battery reached at

floating status, it will need to be
Battery Charging lower than this setpoint before it
37 [37] 52V
Boost Return starts charging. The range is the
(Default)
Setpoint ( Undervoltage Warning ~
( Floating Voltage – 1.2V for
the respective battery
 Electronic Protections

Number Protection Description

When the configured PV array charge current
1 PV Current/Power exceeds the PV rated current, it will be charged at
Limiting Protection the rated current
At night, the battery is prevented from discharging
2 PV Night anti-charge
through the PV component because the voltage of the
protection
battery is greater than the voltage of the PV component
3 Overvoltage Protection Triggered when AC Input voltage reaches 140V
Power Input Under- When utility input is below 90VAC, charging is stopped
4 voltage Protection and the solar inverter is in inverter mode
When the battery voltage reaches the overvoltage
Battery Over-voltage disconnect point, the PV and the utility
5
Protection automatically stop charging the battery, preventing
damage from overcharging the battery
When the battery voltage reaches the low voltage
Battery low-voltage disconnect voltage point, the battery discharge is
6 automatically stopped to prevent excessive discharge
protection
of the battery from being damaged
When a short-circuit fault occurs at the load output, the
Load output output AC voltage is immediately turned off and
7 short-circuit protection outputs again after 1sec, for 3 more attempts. If they
fail, then the unit will need to be manually powered on
Over-temperature When the internal temperature of the unit is too
8 protection high, the it will stop charging and discharging
Output again after 3 minutes after overload
protection, overload 5 times in a row until the solar
9 Overload protection inverter charger is powered back, with
A table of technical parameters after reference to
the load level and duration of the manual
10 PV reverse polarity Protection against reversing PV input connection
Bypass Protection Prevents battery power mode from inverting when
11
protection bypass is active
12 Bypass Flow Protection Built-in AC input overcurrent protection circuit breaker

Battery input When the battery discharge output current is

13
overcurrent protection greater than the maximum and lasts 1 minute, the
AC input is loaded
When the battery is reversed or the inverter is
14 Battery input protection shorted inside, the internal battery input fuse of the
inverter fuses to prevent battery damage or fire
The inverter protects and stops when the external
Charge short-circuit
15 battery port is shorted while the PV or AC is
protection
charging stop the output current
 Fault Codes

Fault code Fault name Description

01 BatVoltLow Battery under-voltage alert
02 BatOverCurrSw Battery discharge current software protection
03 BatOpen Battery not detected
04 BatLowEod Battery undervoltage stopdischarge alarm
05 BatOverCurrHw Battery overcurrent hardware protection
06 BatOverVolt Charge overvoltage protection
07 BusOverVoltHw Bus overvoltage hardware protection
08 BusOverVoltSw Bus overvoltage software protection
09 PvVoltHigh PV overvoltage protection
10 PvBuckOCSw Buck Overcurrent Software Protection
11 PvBuckOCHw Buck Overcurrent Hardware Protection
12 bLineLoss utility power down
13 OverloadBypass Side-by-side load protection
14 OverloadInverter inverter overload protection
15 AcOverCurrHw Inverted overcurrent hardware protection
16 - -
17 InvShort Inverter short-circuit protection
18 - -
19 OverTemperMppt Controller overtemperature protection
20 OverTemperInv inverter over temperature protection
21 FanFail Fan failure
22 EEPROM Memory failure
23 ModelNumErr Model settings are wrong
24 - -
25 - -
26 RlyShort Error between AC output and bypass
27 - -
28 - -
29 BusVoltLow Internal battery boost circuit failure
 Fault Solutions
Make sure the battery is properly connected and charged to
Screen not displaying be able to recognize the solar inverter.
or click any button on the screen to exit screen sleep mode.
Rechargeable battery Measure whether the battery voltage exceeds 60Vand
overvoltage protection disconnect the photovoltaic array from and the power-on.
Battery undervoltage Wait until the battery is charged to return to above the low
protection voltage recovery voltage.

Fan failure Check that the fan is not turning or is blocked by something else.

When the temperature of the equipment cools to, normal

Over-temperature Protection
charge and discharge control is restored.

(1) Reduce the use of electrical equipment;(2) restart the

Overload Protection solar inverter charger and load recovery output.

Inverter short-circuit Disconnect or reduce any loads from the unit. Shut down the
protection solar inverter charger and turn on again to clear the error.

Check with the meter if the PV input voltage is above the

PV overvoltage
maximum allowable input voltage of 145 V operating voltage.

Check that the battery is not connected or that the battery

Battery missed alert
side circuit breaker is not closed.

Maintenance

In order to maintain optimal long-term performance, it is recommended to perform inspections

of the following items twice a year.

1. Make sure that the air flow around the solar inverter is not blocked and remove any dirt or
debris from the radiator.

2. Check all terminals to see if there is corrosion, insulation damage, high temperature or
combustion / discoloration signs, tighten the terminal screws.

Danger of electric shock! Make sure that all power supplies on solar inverter disconnected and
that all capacitive power is released before checking or operating accordingly!
 Technical Specifications

Model RIV4835CSH1S
Utility/Grid
Rated input Voltage 110/120Vac
Input voltage range (90Vac~140Vac) ±2%
Frequency 50Hz/ 60Hz (auto detect)
47-0.3Hz x 55-0.3Hz (50Hz);
Frequency range
57-0.3Hz x 65-0.3Hz (60Hz);
Overload / Short circuit Protection Breaker
Efficiency >95%
Conversion time (Bypass and reverse) 10ms
Reverse Flow Protection Yes
Max Bypass Current load 40A
Inverter
Waveform Pure Sine Wave
Rated Output (VA) 3500
Rated Output (W) 3500
Power factor 1
Output AC Voltage 120Vac
Unstable Input Error ±5%
Output Frequency (Hz) 50Hz ±0.3Hz 60Hz ± 0.3Hz
Efficiency >90%
(102%load110%)±10%
turn off the output after 5min;
(110%load125%)±10%
Overload protection
turn off the output after 10sec;
(125%load)±10%
turn off the output after 5sec;
Peak power 7000VA
Motor Capability 2HP
Output Short-circuit Protection Breaker
Bypass Breaker Specifications 40A
Rated Battery Voltage 48V (minimum start-up voltage 44V)
Battery voltage range 40.0Vdc~60Vdc ± 0.6Vdc
Power Saving Mode Self-Consumption 25W
No Load Self Consumption 48W
 Model RIV4835CSH1S
Utility/Grid Charging
Battery type Lead Acid or Lithium
Maximum Charging Current (AC) 40A
Unstable Condition Error ± 5Adc
Charging Voltage Range 40 –60Vdc
Short-circuit protection Breakers and fuses
Circuit Breaker Specifications 40A

Overcharge Protection Yes; Automatically alerts and then turns off

charging after1 minute
Solar (PV) Charging
Recommended PV Max 145Vdc (150 VDC Actual)
PV Operating Voltage 60-145Vdc
MPPT Voltage Range 60-115Vdc
Battery Charging Range 40-60Vdc
Maximum Input Power 4400W
Maximum Input Current 80A
Maximum Output Power 4200W
PV Charging Current Range 0-80A
Short-circuit Protection Internal Fuse
Wiring Protection Reverse Polarity
General
Certifications FCC Part 15 Class B, RoHS
Operating Temperature 5°F ~ 131°F/ -15°C ~ 55°C
Storage Temperature -13°F ~ 140°F / -25°C ~ 60°C
Humidity 5% to 95% (three-layer paint protection)
Noise ≤60dB
Cooling Fans
IP Grade IP 20
Safety Class I
Dimensions (L-W-D) 16.8*12.7*4.9 in / 426*322*124 mm
Weight 23.8 lbs /10.8kg
 Non-Lithium Battery Parameters

Flooded
Battery type SLD/ USER
GEL Lead Acid Custom Range
Parameters AGM (Default)
(FLD)
Over Voltage
Disconnect 60V 60V 60V 60V N/A

Over Voltage
58.2V 58.2V 58.2V 58.2V N/A
Disconnect Recover
Equalization 59.2V
Voltage [16] - - 59.2V adjustable) 48~59.2V

Boost Voltage 58.4V 56.8V 58.4V 58.4V

adjustable) 48~58.4V
[09]
Float Voltage 55.2V
[11]
55.2V 55.2V 55.2V adjustable) 48~58.4V

Under Voltage
44.8V 44.8V 44.8V 44.8V N/A
recover

Low Voltage 43.8V

Warning [14] 43.8V 43.8V 43.8V adjustable) 40~52V

Low Voltage
Disconnect 50.4V 50.4V 50.4V 50.4V N/A
adjustable)
Recover [35]
Low Voltage
Disconnect 42V 42V 42V 42V 38~50V
adjustable)
[12]

Discharge Limit 40V

40V 40V 40V adjustable) 36~50V
Voltage [15]

Over-discharge 5S
Delay Time [13] 5S 5S 5S adjustable) 5~50S

Equalization - - 120 120 minutes

Duration [18] minutes adjustable) 5~900 minutes

Equalization - - 30 30 days 0~30 days

Interval [20] days adjustable)

Boost Duration 120 120 120 120 minutes

minutes minutes minutes adjustable) 5~900 minutes
[10]

When modifying parameters in User Mode, the following rules must be followed to set parameters
successfully.
1. Overvoltage Disconnect > Overvoltage Disconnect Recover ≥ Equalization voltage ≥ Boost voltage
≥ Float voltage
2. Overvoltage Disconnect > Over Voltage Disconnect Recover
3. Low Voltage Disconnect Recover > Low Voltage Disconnect (at least 2V Smaller) < Discharge
Limit Voltage
4. Undervoltage Recover > Undervoltage Alarm
If setting the Low Voltage Disconnect in User Mode, it must always be at least 2V lower than
the Low Voltage Disconnect Recovery Voltage
 Lithium Battery Parameters

Lithium Iron Phosphate Lithium-ion

Battery type USER Custom

Parameters (LF16) (LF15) (LF14) (n14) (n13)
(Default) Range
Over Voltage
Disconnect 60V 60V 60V 60V 60V 60V N/A

Over Voltage
Disconnect 58.2V 58.2V 58.2V 58.2V 58.2V 58.2V N/A
Recover
Equalization
Voltage - - - - - 59.2V
[16] (adjustable) 48~59.2V

Boost
Voltage 57.6V 54V 50.4V 57.2V 53.2V 58.4V
48~58.4V
[09] (adjustable) (adjustable) (adjustable) (adjustable) (adjustable) (adjustable)
Float
Voltage - - - - - 55.2V
48~58.4V
[11] (adjustable)

Under
Voltage 49.6V 46.4V 43.6V 45.6V 42.4V 44.8V N/A
Recover
Undervolt
age 48.8V 45.6V 42.8V 44.8V 41.6V 44V
40~52V
Alarm[14] (adjustable) (adjustable) (adjustable) (adjustable) (adjustable) (adjustable)

Low Voltage
Disconnect 54V 50.4V 47.2V 48.8V 45.2V 50.4V
Recover (adjustable) N/A
(adjustable) (adjustable) (adjustable) (adjustable) (adjustable)
[35]
Low Voltage
48V 44.8V 42V 42V 38.8V 42V
Disconnect 38~50V
(adjustable) (adjustable) (adjustable) (adjustable) (adjustable) (adjustable)
[12]
Discharge
Limit Voltage 45.6V 42.8V 40V 39.2V 36.4V 40V
36~50V
[15] (adjustable) (adjustable) (adjustable) (adjustable) (adjustable) (adjustable)

Over-
discharge 30s 30s 30s 30s 30s 5s
Delay Time (adjustable) (adjustable) (adjustable) (adjustable) (adjustable) (adjustable) 5~50s
[13]
Equalization
120minutes 5~900
Duration - - - - -
(adjustable) minutes
[18]
Equalization 30days
- - - 0~30
Interval - - (adjustable) days
[20]
Boost
Variable Variable Variable Variable Variable 120Minutes 5~900
Duration
until Full until Full until Full until Full until Full (adjustable) minutes
[10]
When modifying parameters in User Mode or Lithium, the following rules must be followed to set
parameters successfully.

1. Overvoltage Disconnect > Overvoltage Disconnect Recover ≥ Equalization voltage ≥ Boost voltage
≥ Float voltage
2. Overvoltage Disconnect > Over Voltage Disconnect Recover
3. Low Voltage Disconnect Recover > Low Voltage Disconnect (at least 2V Smaller) < Discharge
Limit Voltage
4. Undervoltage Recover > Undervoltage Alarm

If setting the Low Voltage Disconnect in User Mode, it must always be at least 2V lower than
the Low Voltage Disconnect Recovery Voltage
 Charging Parameters Glossary

Overvoltage Disconnect—When and if the charge controller experiences a voltage

higher than what is assigned, it will disconnect itself from the circuit; ceasing charge.

Overvoltage Recover-- in the event a charge controller experiences an over-voltage

condition set by the previous parameter, then this reconnecting parameter is put into
play to direct the controller when it can connect and safely charge again. Typically
over-voltage reconnection is achieved when time has passed (ex. The sun setting), or
when the over-voltage condition is remedied ultimately reducing the voltage to a user
defined charging voltage.

Equalization Voltage-- equalization voltage is a corrective over-charge of the battery.

The user should consult their battery manufacturer regarding specific battery
equalization capacity. This parameter sets the equalization voltage to set the battery at
when it reaches the equalization state.

Boost Voltage-- users should check with their battery manufacturer for proper charging
parameters. In this stage, users set the boost voltage where the battery will reach a
voltage level and remain there until the battery undergoes an absorption stage.

Float Voltage-- once the charge controller recognizes the set float voltage, it will
commence floating. The battery is supposed to be fully charged in his state, and the
charge current is reduced to maintain battery stability levels.

Undervoltage Recover-- deals with the loads connected to the system. When batteries
are determined to be low due to them approaching low voltage disconnect, then the loads
will be shut off to give the batteries time to recover. This parameter sets the controller to
shut off the loads until it can reach the low voltage reconnect stage.

Undervoltage Alarm-- this parameter deals with the batteries themselves approaching
the under-voltage recovery state. The user should minimize loads before the charge
controller approaches a level where it will do this automatically to protect the battery from
discharging.

Low Voltage Recover-- parameter allows loads connected to the system will be able to
operate (not fully) again.

Low-voltage disconnect-- prevents over-discharge of the batteries by automatically

disconnecting any loads. This extends battery life and is the precedent to being in an
under-voltage state, recovering from the undervoltage state, and finally reconnecting to
normal operational state.
 Discharging limit Voltage-- This parameter ensures that the controller does not exceed
the default or assigned parameter before needing to be charged again. This is put into
play to optimize and extend the battery life by going with a higher voltage. The lower the
discharge limit voltage the more negative effect on battery efficiency.

This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference
by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
 RENOGY.COM
Renogy reserves the right to change
the contents of this manual without notice.

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