USER’S MANUAL PIP MK 3k

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User Manual

PIP-MK SERIES 3KW/5KW
INVERTER / CHARGER

Version: 1.0

Table Of Contents
ABOUT THIS MANUAL ...................................................................................................................................... 1
Purpose ............................................................................................................................................................ 1
Scope ............................................................................................................................................................... 1
SAFETY INSTRUCTIONS................................................................................................................................... 1
INTRODUCTION ................................................................................................................................................. 2
Features ........................................................................................................................................................... 2
Basic System Architecture ............................................................................................................................... 2
Product Overview ............................................................................................................................................. 3
INSTALLATION ................................................................................................................................................... 4
Unpacking and Inspection................................................................................................................................ 4
Preparation ...................................................................................................................................................... 4
Mounting the Unit ............................................................................................................................................. 4
Battery Connection .......................................................................................................................................... 5
AC Input/Output Connection ............................................................................................................................ 6
PV Connection ................................................................................................................................................. 7
Final Assembly ................................................................................................................................................. 8
Remote Display Panel Installation ................................................................................................................... 9
Communication Connection ........................................................................................................................... 10
Dry Contact Signal ......................................................................................................................................... 10
OPERATION ...................................................................................................................................................... 11
Power ON/OFF .............................................................................................................................................. 11
Operation and Display Panel ......................................................................................................................... 11
LCD Display Icons ......................................................................................................................................... 12
LCD Setting .................................................................................................................................................... 14
Display Setting ............................................................................................................................................... 22
Operating Mode Description .......................................................................................................................... 27
Fault Reference Code .................................................................................................................................... 29
Warning Indicator ........................................................................................................................................... 29
Battery Equalization ....................................................................................................................................... 30
SPECIFICATIONS ............................................................................................................................................. 32
Table 1 Line Mode Specifications ................................................................................................................... 32
Table 2 Battery Mode Specifications .............................................................................................................. 33
Table 3 Charge Mode Specifications .............................................................................................................. 34
Table 4 ECO/Bypass Mode Specifications ....................................................................................................... 35
TROUBLE SHOOTING ..................................................................................................................................... 36
Appendix I: Approximate Back-up Time Table ............................................................................................. 37

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.
1.

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 qualified service center when service or repair is required.
Incorrect re-assembly may result in a risk of electric shock or fire.

To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning.
Turning off the unit will not reduce this risk.

CAUTION – Only qualified 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.

10. Fuses are provided as over-current protection for the battery supply.
11. 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.
12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input
short circuits.
13. Warning!! Only qualified 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.

INTRODUCTION
This is a multi-function inverter/charger, combining functions of inverter, MPPT solar charger and battery
charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers
user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger
priority, and acceptable input voltage based on different applications.

Features


Pure sine wave inverter



Built-in MPPT solar charge controller



Configurable input voltage range for home appliances and personal computers via LCD setting



Configurable battery charging current based on applications via LCD setting



Configurable AC/Solar Charger priority via LCD setting



Compatible to mains voltage 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



Zero-transfer Time

Basic System Architecture
The following illustration shows basic application for this inverter/charger. It also includes following devices to
have a complete running system:
 Generator or Utility.
 PV modules
Consult with your system integrator for other possible system architectures depending on your requirements.
This inverter can power all kinds of appliances in home or office environment, including motor-type appliances
such as tube light, fan, refrigerator and air conditioner.

Figure 1 Hybrid Power System

Product Overview

1. LCD display
2. Status indicator
3. Charging indicator
4. Fault indicator
5. Function keys (Please refer to operation chapter for the detailed operation)
6. Power on/off switch
7. AC input
8. AC output
9. PV input
10. Battery input
11. Circuit breaker
12. Remote LCD panel communication port
13. Parallel communication cable (only for parallel model)
14. Current sharing cable (only for parallel model)
15. Dry contact
16. RS-232 communication port
17. Reserved for future use
NOTE: For parallel model installation and operation, please check separate parallel installation guide for the
details.

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:
 The unit x 1
 User manual x 1
 Communication cable x 1
 Software CD x 1

Preparation
Before connecting all wirings, please take off bottom cover by removing two screws as shown below.

Mounting the Unit
Consider the following points before selecting where to install:
 Do not mount the inverter on flammable 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 sufficient 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 three 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.

Ring terminal:

WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use
appropriate cable for battery connection. To reduce risk of injury, please use the
proper recommended cable and terminal size as below.
Recommended battery cable and terminal size:
Model

Typical

Battery

Amperage

Capacity

Wire Size

Ring Terminal
Cable
2

mm
3KW

200A

200AH

5KW

200A

200AH

Torque

Dimensions
D (mm)

L (mm)

1*1/0AWG

6.4

49.7

2*4AWG

6.4

49.7

1*1/0AWG

6.4

49.7

2*4AWG

6.4

49.7

Value

2~3 Nm
2~3 Nm

Please follow below steps to implement battery connection:
1. Assemble battery ring terminal based on recommended battery cable and terminal size.
2. Connect all battery packs as units requires. It’s suggested to connect at least 200Ah capacity battery for
3KW model and at least 200Ah capacity battery for 5KW model.
3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the bolts are
tightened with torque of 2-3 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.

WARNING: Shock Hazard
Installation must be performed with care due to high battery voltage in series.

CAUTION!! Do not place anything between the flat part of the inverter terminal and the ring
terminal. Otherwise, overheating may occur.

CAUTION!! Do not apply anti-oxidant substance on the terminals before terminals are
connected tightly.

CAUTION!! Before making the final DC connection or closing DC breaker/disconnector, be sure
positive (+) must be connected to positive (+) and negative (-) must be connected to negative
(-).

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. The recommended spec of AC breaker is 30A
for 3KW, 50A for 5KW.
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 qualified personnel.
WARNING! It’s very important for system safety and efficient 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

3KW

10 AWG

1.2~ 1.6 Nm

5KW

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 first.
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 ( ) first.
→Ground (yellow-green)
L→LINE (brown or black)
N→Neutral (blue)
6

WARNING:
Be sure that AC power source is disconnected before attempting to hardwire it to the unit.
4. Then, insert AC output wires according to polarities indicated on terminal block and tighten terminal screws.
Be sure to connect PE protective conductor (

) first.

→Ground (yellow-green)
L→LINE (brown or black)
N→Neutral (blue)

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
utility short-circuited when these inverters are worked in parallel operation.
CAUTION: Appliances such as air conditioner are required 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 trig overload fault and cut off output to protect your appliance but sometimes it still causes
internal damage to the air conditioner.

PV Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter
and PV modules.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It'’ very important for system safety and efficient operation to use appropriate cable for PV module
connection. To reduce risk of injury, please use the proper recommended cable size as below.
Model
Typical Amperage
Cable Size
Torque
3KW

60A

5KW

80A

6 AWG

1.2~1.6 Nm

PV Module Selection:
When selecting proper PV modules, please be sure to consider below parameters:
1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
2. Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage.
Solar Charging Mode
INVERTER MODEL

3KW
145Vdc

Max. PV Array Open Circuit Voltage
PV Array MPPT Voltage Range

5KW

30~115Vdc

60~115Vdc

Please follow below steps to implement PV module connection:
1. Remove insulation sleeve 10 mm for positive and negative conductors.
2. 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.

3. Make sure the wires are securely connected.

Final Assembly
After connecting all wirings, please put bottom cover back by screwing two screws as shown on the right chart.

Remote Display Panel Installation
The LCD panel can be removable and installed in a remote site with an optional communication cable. Please
follow below steps to implement this remote panel installation.
Step 1. Loosen the screw on the two sides of bottom case and push up the case cover. Then, remove screw on
the top of the display panel. Now, the display can be removed from the bottom case. Then, pull out the cable
from the remote communication port.

Step 2. Drill two holes in the marked locations with two screws as shown below chart. Place the panel on the
surface and align the mounting holes with the two screws. Then, use one more screw on the top to fix the panel
to the wall and check if the remote panel is firmly secured.

Ø 5-Ø 9

Note: Installation to the wall should be implemented with
the proper screws. Refer chart for recommended spec of
screws.
M3

Step 3. Connect LCD panel to the inverter with an optional RJ45 communication cable as below chart.

Communication Connection
Serial Connection
Please use supplied communication cable to connect to inverter and PC. Insert bundled CD into a computer and
follow on-screen instruction to install the monitoring software. For the detailed software operation, please
check user manual of software inside of CD.
Bluetooth Connection
This series is built in Bluetooth technology. You may simply go to google play to install “WatchPower”. It allows
wireless communication up to 6~7m in an open space.

Dry Contact Signal
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.

Unit Status

Power Off

Power On

Condition

Dry contact port:
NC & C

NO & C

Unit is off and no output is powered.

Open

Output is powered from Utility.

Open

Output is

Program 01

Battery voltage < Low DC warning

powered

set as USB

voltage

from

(utility first)

Battery voltage > Setting value in

Battery

Program 13 or battery charging

power or

reaches floating stage

Solar

Program 01

Battery voltage < Setting value in

energy.

Program 12

set

SBU

(SBU

priority) or
SUB
first)

(solar

Battery voltage > Setting value in
Program 13 or battery charging
reaches floating stage

OPERATION
Power ON/OFF

Once the unit has been properly installed and the batteries are connected well, simply press On/Off switch
(located on the button of the case) to turn on the unit.

Operation and Display Panel
The operation and display panel, shown in below chart, is on the front panel of the inverter. It includes
three indicators, four function keys and a LCD display, indicating the operating status and input/output
power information.
LCD display

Status
indicators
Function keys
On/off switch

Indicators
LED Indicator

Color
Green

Status

Green

indicators

Red

Solid/Flashing

Messages

Solid On

Output is available in bypass mode

Flashing

Output is powered by battery in inverter mode

Solid On

Battery is fully charged

Flashing

Battery is charging.

Solid On

Fault mode

Flashing

Warning mode

Function Keys
Function Key

Description

ESC

Exit the setting

To last selection

Down

To next selection

Enter

To confirm/enter the selection in setting mode

LCD Display Icons

Icon

Function description

Input Source Information
Indicates the AC input.
Indicates the PV input
Indicate input voltage, input frequency, PV voltage, charger current,
charger power, battery voltage.
Configuration Program and Fault Information
Indicates the setting programs.
Indicates the warning and fault codes.
Warning:

flashing with warning code.

Fault:

lighting with fault code

Output Information
Indicate output voltage, output frequency, load percent, load in VA,
load in Watt and discharging current.
Battery Information
Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100% in
battery mode and charging status in line mode.
In AC mode, it will present battery charging status.
Status

Battery voltage
<2V/cell

Constant

2 ~ 2.083V/cell

Current mode /
Constant
Voltage mode

LCD Display
4 bars will flash in turns.
Bottom bar will be on and the other three
bars will flash in turns.
Bottom two bars will be on and the other two
bars will flash in turns.
Bottom three bars will be on and the top bar

2.083 ~ 2.167V/cell
> 2.167 V/cell

will flash.

Floating mode. Batteries are fully charged.

4 bars will be on.

In battery mode, it will present battery capacity.
Load Percentage

Load >50%

Battery Voltage
< 1.85V/cell
1.85V/cell ~ 1.933V/cell
1.933V/cell ~ 2.017V/cell
> 2.017V/cell

Load < 50%

< 1.892V/cell
12

LCD Display

1.892V/cell ~ 1.975V/cell
1.975V/cell ~ 2.058V/cell
> 2.058V/cell
Load Information
Indicates overload.
Indicates the load level by 0-24%, 25-49%, 50-74% and 75-100%.
0%~24%

25%~49%

50%~74%

75%~100%

Mode Operation Information
Indicates unit connects to the mains.
Indicates unit connects to the PV panel.
Indicates load is supplied by utility power.
Indicates the utility charger circuit is working.
Indicates the solar charger circuit is working.
Indicates the DC/AC inverter circuit is working.
Indicates unit alarm is disabled.
Indicates Bluetooth is connected.
Time display page

LCD Setting
After pressing and holding “

” button for 3 seconds, the unit will enter setting mode. Press “

button to select setting programs. And then, press “

” button to confirm the selection or “

” or “

”

” button to

exit.
Setting Programs:
Progra
m

Description

Selectable option
Escape

Exit setting mode

USB : Utility first (default)

Utility will provide power to the
loads as first priority.
If Utility energy is unavailable,
solar energy and battery
provides power the loads.
Solar energy provides power to

SUB: Solar first

the loads as first priority.
If solar energy is not sufficient
to power all connected loads,
utility energy will supply power
to the loads at the same time.

Output source priority:

Battery provides power to the

To configure load power

loads only when solar and utility

source priority

is not sufficient.
Solar energy provides power to
the loads as first priority.
If solar energy is not sufficient
SBU priority

to power all connected loads,
battery energy will supply power
to the loads at the same time.
Utility provides power to the
loads only when battery voltage
drops to either low-level
warning voltage or the setting
point in program 12 or solar and
battery is not sufficient.

Maximum charging current:
To configure total charging
current for solar and utility
chargers.
(Max. charging current =
utility charging current +
solar charging current)

Battery type

60A (default)

3KW model setting range is from
10A to 120A and increment of
each click is 10A.
5KW model setting range is from
10A to 140A and increment of
each click is 10A.

AGM (default)

Flooded

User-Defined

If “User-Defined” is selected,
battery charge voltage and low
DC cut-off voltage can be set up
in program 26, 27 and 29.

Restart disable (default)

Restart enable

Restart disable (default)

Restart enable

50Hz (default)

60Hz

Automatically (default)

If selected and utility is
available, inverter will work in
line
mode.
Once
utility
frequency is unstable, inverter
will work in bypass mode if
bypass function is not forbidden
in program 23.
If selected, inverter will work in
line mode when utility is
available.

Auto restart when overload
occurs

Auto restart when over
temperature occurs

Output frequency

Operation Logic

Online mode

ECO Mode

If selected and bypass is not
forbidden in program 23,
inverter will work in ECO mode
when utility is available.

10A

20A

30A (default)

40A

50A

Maximum utility charging
current
11

Note: If setting value in
program 02 is smaller than
that in program in 11, the
inverter will apply charging
current from program 02 for
utility charger.

60A

3KW default setting: 23.0V

Setting voltage point back
to utility source when
selecting “SBU” (SBU
priority) or “SUB” (Solar
first) in program 01

5KW default setting: 46.0V

3KW model setting range is from 22.0V to 28.5V and increment of
each click is 0.5V.
5KW model setting range is from 44.0V to 57.0V and increment of
each click is 1.0V.
3KW model: The setting range is from 24.0V to 32.0V and

Setting voltage point back
to battery mode when
13

selecting

increment of each click is 0.5V.
Battery fully charged

“SBU” (SBU

priority) or “SUB” (Solar
first) in program 01

27.0V (default)

5KW model: The setting range is from 48.0V to 64.0V and
Setting voltage point back
to battery mode when
13

increment of each click is 1.0V.
Battery fully charged

54.0V (default)

SbL: Solar energy for

Solar energy charges battery first

battery first

and allow the utility to charge

UCB: Allow utility to charge

battery.

selecting “SBU” (SBU
priority) or “SUB” (Solar
first) in program 01

battery (Default)

SbL: Solar energy for

Solar energy charge battery first

battery first

and disallow the utility to charge

UdC: Disallow utility to

battery.

charge battery

Solar energy priority:
16

To configure solar energy
priority for battery and load

SLb: Solar energy for load
first
UCb: Allow utility to charge
battery

Solar energy provides power to the
load first and also allow the utility
to charge battery.

SLb: Solar energy for load
first
UdC: Disallow utility to
charge battery

Solar energy provides power to the
load first and disallow the utility to
charge battery.

Alarm on (default)

Alarm off

Alarm control

Auto return to default
display screen

Return to default display
screen (default)

If selected, no matter how users
switch display screen, it will
automatically return to default
display screen (Input voltage
/output voltage) after no button is
pressed for 1 minute.

Stay at latest screen

If selected, the display screen will
stay at latest screen user finally
switches.

Backlight on (default)

Backlight off

Alarm on (default)

Alarm off

Bypass Forbidden

If selected, inverter won’t work in

Backlight control

Beeps while primary source
is interrupted

bypass/ECO modes.

Bypass disable

If selected and power ON button is
pressed on, inverter can work in

bypass/ECO mode only if utility is

Bypass function:

available.

Bypass enable (default)

If selected and no matter power
ON button is pressed on or not,
inverter can work in bypass mode
if utility is available.

Record enable

Record Fault code

Record disable (default)

3KW default setting: 28.2V

5KW default setting: 56.4V

Bulk charging voltage
(C.V voltage)
If self-defined is selected in program 5, this program can be set
up. Setting range is from 24.0V to 32.0V for 3KW model and
48.0V to 64.0V for 5KW model. Increment of each click is 0.1V.
3KW default setting: 27.0V

5KW default setting: 54.0V

Floating charging voltage
If self-defined is selected in program 5, this program can be set
up. Setting range is from 24.0V to 32.0V for 3KW model and
48.0V to 64.0V for 5KW model. Increment of each click is 0.1V.
3KW default setting: 21.0V

5KW default setting: 42.0V

Low DC cut-off voltage
If self-defined is selected in program 5, this program can be set
up. Setting range is from 20.0V to 27.0V for 3KW model and
40.0V to 54.0V for 5KW model. Increment of each click is 0.1V.
Low DC cut-off voltage will be fixed to setting value no matter
what percentage of load is connected.
auto-charging time

5min

(default)

Bulk charging time

If “User-Defined” is selected in program 05, this program can be
set up. Setting range is from 5min to 900min. Increment of each
click is 5min. Otherwise, Keeping auto-charging time.
Battery equalization enable

Battery equalization disable
(default)

Battery equalization

If “Flooded” or “User-Defined” is selected in program 05, this
program can be set up.
19

3KW default setting: 29.2V

5KW default setting: 58.4V

Battery equalization voltage

Setting range is from 24.0V to 32.0V for 3KW model and 48.0V to
64.0V for 5KW model. Increment of each click is 0.1V.
60min (default)

Setting range is from 5min to
900min. Increment of each click is

5min.

Battery equalized time

120min (default)

Setting range is from 5min to 900
min. Increment of each click is 5 min.

Battery equalized timeout

30days (default)

Setting range is from 0 to 90 days.
Increment of each click is 1 day

Equalization interval

Disable (default)

Equalization activated
immediately

Enable

If equalization function is enabled in program 33, this program
can be set up. If “Enable” is selected in this program, it’s to
activate battery equalization immediately and LCD main page will
shows “
”. If “Disable” is selected, it will cancel equalization
function until next activated equalization time arrives based on
program 37 setting. At this time, “
main page.
Reset
Not reset(Default)

Reset PV and Load energy
storage

” will not be shown in LCD

For minute setting, the range is
from 00 to 59.
95

Time setting – Minute

For hour setting, the range is from
00 to 23.
96

Time setting – Hour

For day setting, the range is from
00 to 31.
97

Time setting– Day

For month setting, the range is
from 01 to 12.
98

Time setting– Month

For year setting, the range is from
17 to 99.
99

Time setting – Year

Display Setting
The LCD display information will be switched in turns by pressing “

” or “

” button. The selectable

information is switched as below order: input voltage, input frequency, PV voltage, charging current, charging
power, battery voltage, output voltage, output frequency, load percentage, load in Watt, load in VA, load in
Watt, DC discharging current, main CPU Version.
Selectable information

LCD display
Input Voltage=230V, output voltage=230V

Input voltage/Output voltage
(Default Display Screen)

Input frequency=50Hz

Input frequency

PV voltage=80V

PV voltage

PV current = 2.5A

PV current

PV power = 500W

PV power

AC and PV charging current=50A

PV charging current=50A

Charging current

AC charging current=50A

AC and PV charging power=500W

PV charging power=500W

Charging power

AC charging power=500W

Battery voltage=25.5V, output voltage=230V

Battery voltage and output voltage

Output frequency=50Hz

Output frequency

Load percent=70%

Load percentage

When connected load is lower than 1kVA, load in VA will
present xxxVA like below chart.

Load in VA

When load is larger than 1kVA (≧1KVA), load in VA will
present x.xkVA like below chart.

When load is lower than 1kW, load in W will present
xxxW like below chart.

Load in Watt

When load is larger than 1kW (≧1KW), load in W will
present x.xkW like below chart.

Battery voltage=25.5V, discharging current=1A

Battery voltage/DC discharging current

PV energy generated Today = 3.88kWh, Load output
energy Today = 9.88kWh.
PV energy generated today and Load output
energy today

PV energy generated this month = 388kWh, Load output
energy this month = 988kWh.
PV energy generated this month and Load output
energy this month.

PV energy generated this year energy = 3.88MWh, Load
output energy this year = 9.88MWh.
PV energy generated this year and Load output
energy this year.

Total PV energy until now= 38.8MWh, Total load output
energy until now= 98.8MWh.
PV energy generated totally and Load output
total energy.

Real date Nov 28, 2017.

Real date.

Real time 13:20.

Real time.

Main CPU version 00014.04.

Main CPU version checking.

Secondary CPU version 00003.03.

Secondary CPU version checking.

Bluetooth version 00003.03.

Bluetooth version checking.

SCC version 00003.03.

SCC version checking

Operating Mode Description
Operation mode

Description

LCD display
Charging by utility and PV energy.

Charging by utility.
Standby mode
Note:
*Standby mode: The inverter
is not turned on yet but at this
time, the inverter can charge

No output is supplied by the
unit but it still can charge
batteries.

Charging by PV energy.

battery without AC output.

No charging.

No charging and Bypass
Fault mode
Note:
*Fault mode: Errors are
caused by inside circuit error

Utility can bypass.

No charging

or external reasons such as
over temperature, output short
circuited and so on.

Charging by utility and PV energy.

The unit will provide output
Bypass/ECO Mode

power from the utility. PV
energy and utility can charge
batteries.

Charging by PV

Charging by utility

The unit will provide output
Bypass/ECO Mode

power from the utility. PV
energy and utility can charge

No charging

batteries.

Charging by utility and PV energy.

The unit will provide output
Line Mode

power from the mains. It will
also charge the battery at

Charging by utility.

line mode.

Power from battery and PV energy.

PV energy will supply power to the loads and
charge battery at the same time.
The unit will provide output
Battery Mode

power from battery and PV
power.

Power from battery only.

Fault Reference Code
Fault Code

Fault Event

Icon on

Fan is locked when inverter is off.

Over temperature

Battery voltage is too high

Battery voltage is too low

Output short circuited or over temperature is detected by
internal converter components.

Output voltage is too high.

Overload time out

Bus voltage is too high

Bus soft start failed

PFC over current

OP over current

Bus voltage is too low

Inverter soft start failed

Over DC voltage in AC output

Battery is not connected

Current sensor failed

Output voltage is too low

PV voltage is over limitation

Warning Indicator
Warning
Code

Warning Event

Audible Alarm

Fan is locked when inverter is on.

Beep three times every second

Over temperature

None

Battery is over-charged

Beep once every second

Low battery

Beep once every second

Overload

Beep once every 0.5 second

Output power derating

Beep twice every 3 seconds

Communication

None

interrupted

Battery equalization

None

Battery is not connected

None
29

Icon flashing

Battery Equalization
Equalization function is added into charge controller. It reverses the buildup of negative chemical effects like
stratification, a condition where acid concentration is greater at the bottom of the battery than at the top.
Equalization also helps to remove sulfate crystals that might have built up on the plates. If left unchecked, this
condition, called sulfation, will reduce the overall capacity of the battery.

Therefore, it’s recommended to

equalize battery periodically.


How to Apply Equalization Function

You must enable battery equalization function in monitoring LCD setting program 33 first. Then, you may apply
this function in device by either one of following methods:
1. Setting equalization interval in program 37.
2. Active equalization immediately in program 39.


When to Equalize

In float stage, when the setting equalization interval (battery equalization cycle) is arrived, or equalization is
active immediately, the controller will start to enter Equalize stage.



Equalize charging time and timeout

In Equalize stage, the controller will supply power to charge battery as much as possible until battery voltage
raises to battery equalization voltage. Then, constant-voltage regulation is applied to maintain battery voltage
at the battery equalization voltage. The battery will remain in the Equalize stage until setting battery equalized
time is arrived.

However, in Equalize stage, when battery equalized time is expired and battery voltage doesn’t rise to battery
equalization voltage point, the charge controller will extend the battery equalized time until battery voltage
achieves battery equalization voltage. If battery voltage is still lower than battery equalization voltage when
battery equalized timeout setting is over, the charge controller will stop equalization and return to float stage.

SPECIFICATIONS
Table 1 Line Mode Specifications
INVERTER MODEL

3KW

Input Voltage Waveform

5KW

Sinusoidal (utility or generator)

Nominal Input Voltage

230Vac

Low Loss Voltage

110Vac± 7V

Low Loss Return Voltage

120Vac± 7V

High Loss Voltage

280Vac± 7V

High Loss Return Voltage

270Vac± 7V

Max AC Input Voltage

300Vac

Nominal Input Frequency

50Hz / 60Hz (Auto detection)

Low Loss Frequency

46(56)± 1Hz

Low Loss Return Frequency

46.5(57)± 1Hz

High Loss Frequency

54(64)± 1Hz

High Loss Return Frequency

53(63)± 1Hz

Power Factor

>0.98
Line mode: Circuit Breaker

Output Short Circuit Protection

Battery mode: Electronic Circuits

Efficiency (Line Mode)

93% (Peak Efficiency)
Line modeBattery mode 0ms

Transfer Time

InverterBypass 4ms

Table 2 Battery Mode Specifications
INVERTER MODEL
Rated Output Power

3KW

5KW

3KVA/3KW

5KVA/5KW

Output Voltage Waveform

Pure Sine Wave

Output Voltage Regulation

230Vac± 5%

Output Frequency

50Hz or 60Hz
90%

Peak Efficiency
Overload Protection

5s@≥150% load; 10s@105%~150% load
2* rated power for 5 seconds

Surge Capacity
Nominal DC Input Voltage

24Vdc

48Vdc

20Vdc -34Vdc

40Vdc -66Vdc

23Vdc

46Vdc

22.5Vdc

45.0Vdc

22.0Vdc

44.0Vdc

23.5Vdc

47.0Vdc

23.0Vdc

46.0Vdc

21.5Vdc

43.0Vdc

21.0Vdc

42.0Vdc

High DC Recovery Voltage

32Vdc

64Vdc

High DC Cut-off Voltage

34Vdc

66Vdc

Operating Range
Cold Start Voltage
Low DC Warning Voltage
@ load < 50%
@ load ≥ 50%
Low DC Warning Return Voltage
@ load < 50%
@ load ≥ 50%
Low DC Cut-off Voltage
@ load < 50%
@ load ≥ 50%

No Load Power Consumption

<75W

Table 3 Charge Mode Specifications
Utility Charging Mode
INVERTER MODEL

3KW

5KW

Charging Current

Default: 30A, max: 60A

@ Nominal Input Voltage
Flooded

29.2Vdc

58.4Vdc

28.2Vdc

56.4Vdc

Floating Charging Voltage

27Vdc

54Vdc

Overcharge Protection

34Vdc

66Vdc

Bulk
Charging
Voltage

Battery
AGM / Gel
Battery

Charging Algorithm

3-Step
Battery Voltage, per cell

Charging Current, %

2.43Vdc (2.35Vdc)

Voltage

2.25Vdc

100%

Charging Curve
50%

T1
T1 = 10* T0, minimum 10mins, maximum 8hrs

Current

Bulk
(Constant Current)

Absorption
(Constant Voltage)

Time

Maintenance
(Floating)

Solar Charging Mode (MPPT type)
INVERTER MODEL
Rated Power
Maximum charging
current

3KW

5KW

1500W

4000W

60A

80A

Efficiency

98.0% max.

Max. PV Array Open

145Vdc

Circuit Voltage
PV Array MPPT Voltage
Range

30~115Vdc

Battery Voltage

60~115Vdc
+/-0.3%

Accuracy
PV Voltage Accuracy

+/-2V

Charging Algorithm

3-Step

Joint Utility and Solar Charging
Max Charging Current

120A

140A

Default Charging

60A

Current

Table 4 ECO/Bypass Mode Specifications
Bypass Mode
INVERTER MODEL

3KW

Input Voltage Waveform

5KW
Sinusoidal (utility or generator)

Low Loss Voltage

176Vac± 7V

Low Loss Return Voltage

186Vac± 7V

High Loss Voltage

280Vac± 7V

High Loss Return Voltage

270Vac± 7V

Nominal Input Frequency

50Hz / 60Hz (Auto detection)

Low Loss Frequency

46(56)± 1Hz

Low Loss Return Frequency

46.5(57)± 1Hz

High Loss Frequency

54(64)± 1Hz

High Loss Return Frequency

53(63)± 1Hz

Table 5 General Specifications
INVERTER MODEL

3KW

5KW

SCC type

MPPT

Parallel-able

YES

Communication

RS232 and Bluetooth

Safety Certification

Operating Temperature

0°C to 55°C

Range
Storage temperature
Humidity

-15°C~ 60°C
5% to 95% Relative Humidity (Non-condensing)

Dimension

140 x 303 x 525

(D*W*H), mm
Net Weight, kg

13.0

13.5

TROUBLE SHOOTING
Problem
Unit shuts down
automatically
during startup
process.
No response after
power on.

Mains exist but the
unit works in
battery mode.

When the unit is
turned on, internal
relay is switched on
and off repeatedly.

LCD/LED/Buzzer

What to do

LCD/LEDs and buzzer
will be active for 3
seconds and then
complete off.

The battery voltage is too low
(<1.91V/Cell)

1. Re-charge battery.
2. Replace battery.

No indication.

1. The battery voltage is far too
low. (<1.4V/Cell)
2. Battery polarity is connected
reversed.

1. Check if batteries and the
wiring are connected well.
2. Re-charge battery.
3. Replace battery.

Input voltage is
displayed as 0 on the
LCD and green LED is
flashing.

Input protector is tripped

Check if AC breaker is tripped
and AC wiring is connected
well.

Green LED is flashing.

Insufficient quality of AC power.
(Shore or Generator)

Green LED is flashing.

Set “Solar First” as the priority of
output source.

LCD display and LEDs
are flashing

Battery is disconnected.

Fault code 07

Overload error. The inverter is
overload 110% and time is up.

Fault code 05

Output short circuited.

Fault code 02

Internal temperature of inverter
component is over 100°C.

1. Check if AC wires are too
thin and/or too long.
2. Check if generator (if
applied) is working well or if
input voltage range setting is
correct. (UPSAppliance)
Change output source priority
to Utility first.
Check if battery wires are
connected well.
Reduce the connected load by
switching off some
equipment.
Check if wiring is connected
well and remove abnormal
load.
Check whether the air flow of
the unit is blocked or whether
the ambient temperature is
too high.

Battery is over-charged.

Return to repair center.

The battery voltage is too high.

Check if spec and quantity of
batteries are meet
requirements.

Fault code 01

Fan fault

Replace the fan.

Fault code 06/58

Output abnormal (Inverter voltage
below than 190Vac or is higher
than 260Vac)

1. Reduce the connected
load.
2. Return to repair center

Internal components failed.

Return to repair center.

Fault code 03
Buzzer beeps
continuously and
red LED is on.

Explanation / Possible cause

Fault code
08/09/53/57
Fault code 50
Fault code 51

PFC over current or surge.
OP over current or surge.

Fault code 52

Bus voltage is too low.

Fault code 55

Output voltage is unbalanced.

Fault code 56

Battery is not connected well or
fuse is burnt.

Restart the unit, if the error
happens again, please return
to repair center.
If the battery is connected
well, please return to repair
center.

Appendix I: Approximate Back-up Time Table
Model

3KW

Model

5KW

Load (VA)

Backup Time @24Vdc 200Ah (min)

Backup Time @24Vdc 400Ah (min)

300

898

2200

600

444

1050

900

249

606

1200

190

454

1500

136

328

1800

112

252

2100

216

2400

188

2700

148

3000

134

Load (VA)

Backup Time @ 48Vdc 200Ah (min)

Backup Time @ 48Vdc 400Ah (min)

500

1226

2576

1000

536

1226

1500

316

804

2000

222

542

2500

180

430

3000

152

364

3500

130

282

4000

100

224

4500

200

5000

180

Note: Backup time depends on the quality of the battery, age of battery and type of battery.
Specifications of batteries may vary depending on different manufacturers.

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