USER’S MANUAL PIP GK 20180306

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PIP-GK SERIES 3KVA, 5KVA
INVERTER / CHARGER
(High PV Input model, New Monitoring Feature)

User Manual

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 ..................................................................................................................7
PV Connection .......................................................................................................................................8
Final Assembly ......................................................................................................................................9
Remote Display Panel Installation ......................................................................................................... 10
Communication Connection .................................................................................................................. 11
Dry Contact Signal ............................................................................................................................... 12
OPERATION ................................................................................................................................... 13
Power ON/OFF .................................................................................................................................... 13
Operation and Display Panel ................................................................................................................. 13
LCD Display Icons ................................................................................................................................ 14
LCD Setting ......................................................................................................................................... 16
Display Setting .................................................................................................................................... 30
Operating Mode Description ................................................................................................................. 35
Battery Equalization Description ........................................................................................................... 37
Fault Reference Code ........................................................................................................................... 39
Warning Indicator ................................................................................................................................ 39
SPECIFICATIONS .......................................................................................................................... 40
Table 1 Line Mode Specifications .......................................................................................................... 40
Table 2 Inverter Mode Specifications ..................................................................................................... 41
Table 3 Charge Mode Specifications ...................................................................................................... 42
Table 4 General Specifications .............................................................................................................. 42
TROUBLE SHOOTING .................................................................................................................... 43
Appendix: Approximate Back-up Time Table ................................................................................ 44

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. One piece of 150A fuse is 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.
14. WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable:
single crystalline, poly crystalline with class A-rated and CIGS modules. To avoid any malfunction, do
not connect any PV modules with possible current leakage to the inverter. For example, grounded PV
modules will cause current leakage to the inverter. When using CIGS modules, please be sure NO
grounding.
15. CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will cause
damage on inverter when lightning occurs on PV modules.

INTRODUCTION
This is a multi-function inverter/charger, combining functions of inverter, 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



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



Removable LCD control module



Reversed communication port for BMS (RS485, CAN-BUS, RS232)



Build-in Bluetooth for mobile monitoring (Requires App), OTG USB function, dusk filters



Configurable AC/PV Output usage timer and prioritization

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 buttons
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. Dry contact
14. USB communication port
15. BMS Communication port: CAN and RS232 or RS485
16. RS-232 communication port
17. LED indicators for USB function setting/ Output source priority timer / Charger source priority setting

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
 RS232 Communication cable x 1
 Software CD x 1
 DC Fuse x 1

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

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.
 For proper air circulation to dissipate heat, allow a clearance of
approx. 20 cm to the side and approx. 50 cm above and below
the unit.
 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
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 as below.
Recommended battery cable size:
Model

Typical

Wire Size

Amperage

Ring Terminal
Cable
mm2

Torque

Dimensions
D (mm)

L (mm)

3KW

148A

1*2AWG

8.4

39.2

5KW

120A

1*2AWG

8.4

39.2

Value

5 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 100Ah 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 5 Nm. Make sure polarity at both the battery and the inverter/charge is correctly
connected and ring terminals are tightly screwed to the battery terminals.

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 32A
for 3KW and 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

Cable (mm2)

Torque Value

3KW

12 AWG

1.2 Nm

5KW

10 AWG

1.2 Nm

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)

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: 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! It's 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

Wire Size

Cable (mm2)

Torque value（max）

3KW/5KW

1 x 12AWG

0.8 Nm

WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single
crystalline, poly crystalline with class A-rated and CIGS modules.
To avoid any malfunction, do not connect any PV modules with possible current leakage to the inverter. For
example, grounded PV modules will cause current leakage to the inverter. When using CIGS modules, please
be sure NO grounding.
CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will cause damage on
inverter when lightning occurs on PV modules.
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.
3KW

INVERTER MODEL
Max. PV Array Open Circuit Voltage

5KW
500Vdc

120Vdc~450Vdc

PV Array MPPT Voltage Range

Take 250Wp PV module as an example. After considering above two parameters, the recommended module
configurations are listed as below table.
Solar Panel Spec.
SOLAR INPUT
Total input
Q'ty of panels
(reference)
(Min in serial: 6 pcs, max. in serial: 12 pcs)
power
- 250Wp
6 pcs in serial
6 pcs
1500W
- Vmp: 30.1Vdc
8
pcs
in
serial
8
pcs
2000W
- Imp: 8.3A
12
pcs
in
serial
12
pcs
3000W
- Voc: 37.7Vdc
- Isc: 8.4A
8 pieces in serial and 2 sets in parallel
16 pcs
4000W
- Cells: 60
PV Module Wire Connection
Please follow below steps to implement PV module connection:
1. Remove insulation sleeve 7 mm for positive and negative conductors.
2. Suggest to put bootlace ferrules on the end of positive and negative wires with a
proper crimping tool.
3. Check correct polarity of wire connection from PV modules and PV input
connectors. Then, connect positive pole (+) of connection wire to positive pole (+)
of PV input connector. Connect negative pole (-) of connection wire to negative
pole (-) of PV input connector. Screw two wires tightly in clockwise direction.
Recommended tool: 4mm blade screwdriver
8

Final Assembly
After connecting all wirings, please put bottom cover back by screwing two screws as shown below.

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 bottom of LCD panel and push down the panel from the bottom case. Then,
pull out the cable from the remote communication port. Be sure to screw back the fixing plate to the inverter.

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.

RS-232 communication
To PC

Remote
communication

USB communication
To PC

BMS communication

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

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

powered

set as USB

warning voltage

from Battery

(utility first)

Battery voltage > Setting

power or

value in Program 13 or

Solar energy.

battery charging reaches

Power On

floating stage
Program 01 is

Battery voltage < Setting

set as SBU

value in Program 12

(SBU priority)

Battery voltage > Setting

or SUB (solar

value in Program 13 or

first)

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 display panel) 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 six
indicators, six function keys, on/off switch and a LCD display, indicating the operating status and input/output
power information.
Setting LED 2

LCD display

Setting LED 1
Function keys

Status indicators

Function keys
Setting LED 3

On/off switch

Indicators
LED Indicator

Color

Setting LED 1

Green

Solid On

Output powered by utility

Setting LED 2

Green

Solid On

Output powered by PV

Setting LED 3

Green

Solid On

Output powered by battery

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

Green
Status
indicators

Green
Red

Solid/Flashing

Function Keys
13

Messages

Function Key

Description

ESC

Exit the setting

USB function setting

Select USB OTG functions

Timer setting for the
Output source priority
Timer setting for the
Charger source priority

Setup the timer for prioritizing the output source
Setup the timer for prioritizing the charger source

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

LCD Display
14

<2V/cell
Constant
Current mode /
Constant
Voltage mode

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 ~ 2.083V/cell
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

Battery Voltage

LCD Display

< 1.85V/cell
Load >50%

1.85V/cell ~ 1.933V/cell
1.933V/cell ~ 2.017V/cell
> 2.017V/cell
< 1.892V/cell

Load < 50%

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.
Indicates USB disk is connected.
Time display page

LCD Setting
General 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:
Program

Description

Selectable option
Escape

Exit setting mode

Utility first (default)
Utility will provide power to the
loads as first priority.
Solar and battery energy will
provide power to the loads only
when utility power is not available.
Solar energy provides power to the
loads as first priority.
If solar energy is not sufficient to
Solar first

power all connected loads, battery
energy will supply power the loads
at the same time.
Utility provides power to the loads

Output source priority:
01

only when any one condition

To configure load power

happens:

source priority

- Solar energy is not available
- Battery voltage drops to low-level
warning voltage or the setting
point in program 12.
Solar energy provides power to the
SBU priority

loads as first priority.
If solar energy is not sufficient 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.

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

10A

20A

30A

40A

50A

60A (default)

70A

80A

Appliances (default)

If selected, acceptable AC input
voltage range will be within
90-280VAC.

AC input voltage range

UPS

If selected, acceptable AC input
voltage range will be within
170-280VAC.

Battery type

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 enable

Restart disable (default)

Restart enable

50Hz (default)

60Hz

220V

230V (default)

Auto restart when overload
occurs

Auto restart when over
temperature occurs

Output frequency

Output voltage

Maximum utility charging
current
11

Restart disable (default)

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.

240V

10A

20A

30A (default)

40A

50A

60A

Available options in 3KW model:

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

22.0V

22.5V

23.0V (default)

23.5V

24.0V

24.5V

25.0V

25.5V

Available options in 5KW model:
44V

45V

46V (default)

47V

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

48V

49V

50V

51V

Available options in 3KW model:

Setting voltage point back

Battery fully charged

24V

24.5V

25V

25.5V

26V

26.5V

27V (default)

27.5V

28V

to battery mode when
13

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

28.5V

29V

Available options in 5KW model:

Setting voltage point back

Battery fully charged

48V

49V

50V

51V

52V

53V

54V (default)

55V

56V

57V

58V

to battery mode when
13

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

If this inverter/charger is working in Line, Standby or Fault mode,
charger source can be programmed as below:
Solar first

Solar energy will charge battery as
first priority.
Utility will charge battery only
when solar energy is not available.

Solar and Utility (default)

Solar energy and utility will charge
battery at the same time.

Charger source priority:
16

To configure charger source
priority
Only Solar

Solar energy will be the only
charger source no matter utility is
available or not.

If this inverter/charger is working in Battery mode or Power saving
mode, only solar energy can charge battery. Solar energy will
charge battery if it's available and sufficient.

Alarm on (default)

Alarm off

Return to default display

If selected, no matter how users

screen (default)

switch display screen, it will

Alarm control

automatically return to default
display screen (Input voltage
/output voltage) after no button is
pressed for 1 minute.
19

Auto return to default
display screen

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 disable (default)

Bypass enable

Record enable (default)

Record disable

3KW default setting: 28.2V

5KW default setting: 56.4V

Backlight control

Beeps while primary source
is interrupted

Overload bypass:
When enabled, the unit will
transfer to line mode if
overload occurs in battery
mode.

Record Fault code

Bulk charging voltage
(C.V voltage)
If self-defined is selected in program 5, this program can be set
up. Setting range is from 25.0V to 31.5V for 3KW model and 48.0V
to 61.0V 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 25.0V to 31.5V for 3KW model and 48.0V
to 61.0V for 5KW model. Increment of each click is 0.1V.
23

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 21.0V to 24.0V for 3KW model and 42.0V
to 48.0V 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.
Battery equalization

Battery equalization disable
(default)

Battery equalization

If “Flooded” or “User-Defined” is selected in program 05, this
program can be set up.
3KW default setting: 29.2V

5KW default setting: 58.4V

Battery equalization voltage

Setting range is from 25.0V to 31.5V for 3KW model and 48.0V to
61.0V 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

Enable

Equalization activated
immediately

Disable (default)

If equalization function is enabled in program 30, 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 35
setting. At this time, “
Not reset(Default)

” will not be shown in LCD main page.
Reset

Reset PV and Load energy
storage

Not reset(Default)

Reset

3 days

5 days

10 days (default)

20 days

30 days

60 days

Erase all data log

Data log stored period

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

Time setting – Minute

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

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.

Time setting– Month

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

Time setting – Year

Function Setting
There are three function keys on the display panel to implement special functions such as USB OTG, timer
setting for output source priority and timer setting for charger source priority.
1. USB Function Setting
Please insert USB disk into USB port (

). Press and hold “

” button for 3 seconds to enter USB function

setting mode. These functions include to upgrade inverter firmware, export data log and re-write internal
parameters from USB disk.
Procedure

LCD Screen

Step 1: Press and hold “
Step 2: Press “

”, “

” button for 3 seconds to enter USB function setting mode.
” or “

” button to enter the selectable setting programs.

Step 3: Please select setting program by following each procedure.
Program#
If pressing “

” button to proceed the firmware upgrade function. If the

selected function is ready, LCD will display “

LCD Screen

Operation Procedure

”. Please press “

” button

to confirm the selection again.

Upgrade
firmware

Press “
“

” to select “Yes” or “

” button to select “No”. Then, press

” button to exit setting mode.

If pressing “

” button to proceed parameters re-write from USB function. If

selected function is ready, LCD will display “

”. Please press “

” button

to confirm the selection again.

:
Re-write
internal
parameters

Press “
“

” to select “Yes” or “

” button to select “No”. Then, press

” button to exit setting mode.

IMPORTANT NOTE: After this function is executed, partial LCD setting programs will be locked.
For the detailed information, please check your installer directly.
If pressing “

” button to export data log from USB disk to the inverter. If

selected function is ready, LCD will display “

:
Export data
log

”. Please press “

” button

to confirm the selection again.

Press “
“

” to select “Yes” or “

” button to select “No”. Then, press

” button to exit setting mode.

If no button is pressed for 1 minute, it will automatically return to main screen.

Error message for USB On-the-Go functions:
Error Code

Messages
No USB disk is detected.
USB disk is protected from copy.
Document inside the USB disk with wrong format.

If any error occurs, error code will only show 3 seconds. After three seconds, it will automatically return to
display screen.

2. Timer Setting for Output Source Priority
This timer setting is to set up the output source priority per day.
Procedure

LCD Screen

Step 1: Press and hold “
priority.
Step 2: Press “

”, “

” button for 3 seconds to enter timer setting mode for output source

” or “

” button to enter the selectable setting programs.

Step 3: Please select setting program by following each procedure.
Program#

Operation Procedure

LCD Screen

If pressing “
” button to set up timer. Press “
” to select start time.
Press “ ” or “ ” button to set the start time and then press “ ” button to
confirm. Press “
” button to select end time. Press “ ” or “ ” button to
set the end time and then press “ ” button to confirm. The setting range is
from 00 to 23. Increment of each click is 1 hour.
If pressing “
” button to set up timer. Press “
” to select start time. Press
“ ” or “ ” button to set the start time and then press “ ” button to confirm.
Press “
” button to select end time. Press “ ” or “ ” button to set the end
time and then press “ ” button to confirm. The setting range is from 00 to 23.
Increment of each click is 1 hour.

” button to exit setting mode.

3. Timer Setting for the Charger Source Priority
This timer setting is to set up the charger source priority per day.
Procedure

LCD Screen

Step 1: Press and hold “

” button for 3 seconds to enter timer setting mode for charger

source priority.
Step 2: Press “

”, “

” or “

” button to enter the selectable setting programs.

Step 3: Please select setting program by following each procedure.
Program#

Operation Procedure
If pressing “
” button to set up timer. Press “
” to select start time.
Press “ ” or “ ” button to set the start time and then press “ ” button to
confirm. Press “
” button to select end time. Press “ ” or “ ” button to
set the end time and then press “ ” button to confirm. The setting range is
from 00 to 23. Increment of each click is 1 hour.

LCD Screen

If pressing “
“

” or “

” button to set up timer. Press “

” to select start time. Press

” button to set the start time and then press “

” button to confirm.

Press “
” button to select end time. Press “ ” or “ ” button to set the end
time and then press “ ” button to confirm. The setting range is from 00 to 23.
Increment of each click is 1 hour.
If pressing “
” button to set up timer. Press “
” to select start time
setting. Press “ ” or “ ” button to set the start time and then press “ ”
button to confirm. Press “
” button to select end time. Press “ ” or “ ”
button to set the end time and then press “ ” button to confirm. The setting
range is from 00 to 23. Increment of each click is 1 hour.
Press “

” button to exit setting mode.

Display Setting
The LCD display information will be switched in turns by pressing “UP” or “DOWN” key. The selectable
information is switched as the following table in order.
Selectable information

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

Input voltage/Output voltage
(Default Display Screen)

Input frequency=50Hz

Input frequency

PV voltage=260V

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

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

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

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

PV Total energy = 38.8MWh, Load Output Total
energy = 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.

Secondary Bluetooth version 00003.03.

Secondary Bluetooth version checking.

Operating Mode Description
Operation mode

Description

LCD display
Charging by utility and PV energy.

Standby mode / Power
saving mode

Charging by utility.

Note:
*Standby mode: The inverter
is not turned on yet but at this
time, the inverter can charge
battery without AC output.
*Power saving mode: If

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

enabled, the output of inverter

Charging by PV energy.

will be off when connected
load is pretty low or not
detected.

No charging.

Charging by utility and PV energy.

Charging by utility.

Fault mode
Note:
*Fault mode: Errors are
caused by inside circuit error
or external reasons such as

PV energy and utility can
charge batteries.

over temperature, output short

Charging by PV energy.

circuited and so on.

No charging.

Operation mode

Description

LCD display
Charging by utility and PV energy.

Charging by utility.

The unit will provide output
Line Mode

power from the mains. It will

If “SUB” (solar first) is selected as output source
priority and solar energy is not sufficient to
provide the load, solar energy and the utility will
provide the loads and charge the battery at the
same time.

also charge the battery at
line mode.

If “SUB” (solar first) is selected as output source
priority and battery is not connected, solar
energy and the utility will provide the loads.

Power from utility.

Operation mode

Description

LCD display
Power from battery and PV energy.

PV energy will supply power to the loads and
charge battery at the same time. No utility is
available.

The unit will provide output
Battery Mode

power from battery and/or
PV power.
Power from battery only.

Power from PV energy only.

Battery Equalization Description
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 30 first. Then, you may apply
this function in device by either one of following methods:
1. Setting equalization interval in program 35.
2. Active equalization immediately in program 36.


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.
37



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.

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

Over current or surge

Bus voltage is too low

Inverter soft start failed

Over DC voltage in AC output

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

PV energy is low.

Beep twice every 3 seconds

High AC input (>280VAC) during
BUS soft start

None

Communication

None

interrupted

Battery equalization

None

Battery is not connected

None

Icon flashing

SPECIFICATIONS
Table 1 Line Mode Specifications
INVERTER MODEL

3KW

Input Voltage Waveform

5KW

Sinusoidal (utility or generator)

Nominal Input Voltage

230Vac
170Vac± 7V (UPS);

Low Loss Voltage

90Vac± 7V (Appliances)
180Vac± 7V (UPS);

Low Loss Return Voltage

100Vac± 7V (Appliances)

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

40± 1Hz

Low Loss Return Frequency

42± 1Hz

High Loss Frequency

65± 1Hz

High Loss Return Frequency

63± 1Hz

Output Short Circuit Protection

Circuit Breaker

Efficiency (Line Mode)

>95% ( Rated R load, battery full charged )
10ms typical (UPS);

Transfer Time

20ms typical (Appliances)
Output Power

Output power derating:

Rated Power

When AC input voltage drops to 170V,
the output power will be derated.

50% Power

90V

170V

280V

Input Voltage

Table 2 Inverter 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

Peak Efficiency

93%

Overload Protection

5s@≥130% load; 10s@105%~130% load
2* rated power for 5 seconds

Surge Capacity
Nominal DC Input Voltage

24Vdc

48Vdc

23.0Vdc

46.0Vdc

@ load < 50%

23.0Vdc

46.0Vdc

@ load ≥ 50%

22.0Vdc

44.0Vdc

@ load < 50%

23.5Vdc

47.0Vdc

@ load ≥ 50%

23.0Vdc

46.0Vdc

@ load < 50%

21.5Vdc

43.0Vdc

@ load ≥ 50%

21.0Vdc

42.0Vdc

High DC Recovery Voltage

32Vdc

62Vdc

High DC Cut-off Voltage

33Vdc

63Vdc

No Load Power Consumption

<35W

<50W

Cold Start Voltage
Low DC Warning Voltage

Low DC Warning Return Voltage

Low DC Cut-off Voltage

Table 3 Charge Mode Specifications
Utility Charging Mode
INVERTER MODEL

3KW

5KW

Charging Algorithm

3-Step

AC Charging Current (Max)

60Amp (@VI/P=230Vac)

Bulk Charging Flooded Battery

29.2

58.4

Voltage

28.2

56.4

27Vdc

54Vdc

AGM / Gel Battery

Floating Charging Voltage

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)

MPPT Solar Charging Mode
INVERTER MODEL

3KW

5KW

Max. PV Array Power

4000W

Nominal PV Voltage

240Vdc

PV Array MPPT Voltage Range

120~450Vdc

Max. PV Array Open Circuit Voltage

500Vdc

Max Charging Current

80Amp

(AC charger plus solar charger)

Table 4 General Specifications
INVERTER MODEL

3KW

5KW

Operating Temperature Range

-10°C to 50°C

Storage temperature

-15°C~ 60°C

Humidity

5% to 95% Relative Humidity (Non-condensing)

Dimension (D*W*H), mm

100 x 300 x 440

Net Weight, kg

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

Explanation / Possible cause

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. Internal fuse tripped.

1. Contact repair center for
replacing the fuse.
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.
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 “USB” (utility first).

Green LED is flashing.

Insufficient quality of AC power.
(Shore or Generator)

Green LED is flashing.

Set “SUB” (solar first) as the
priority of output source.

LCD display and LEDs
are flashing

Battery is disconnected.

Check if battery wires are
connected well.

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

Reduce the connected load by
switching off some
equipment.

If PV input voltage is higher than
specification, the output power will
be derated. At this time, if
connected loads is higher than
derated output power, it will cause
overload.

Reduce the number of PV
modules in series or the
connected load.

Fault code 07

Temperature of internal converter
component is over 120°C.
Internal temperature of inverter
component is over 100°C.

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

Fault code
08/09/53/57

Internal components failed.

Return to repair center.

Fault code 51

Over current or surge.

Fault code 52

Bus voltage is too low.

Fault code 55

Output voltage is unbalanced.

Fault code 59

PV input voltage is beyond the
specification.

Output short circuited.
Fault code 05

Buzzer beeps
continuously and
red LED is on.

What to do

Fault code 02

Fault code 03

Restart the unit, if the error
happens again, please return
to repair center.
Reduce the number of PV
modules in series.

Appendix: Approximate Back-up Time Table
Model

3KW

Model

5KW

Load (VA)

Backup Time @ 24Vdc 100Ah (min)

Backup Time @ 24Vdc 200Ah (min)

300

449

1100

600

222

525

900

124

303

1200

227

1500

164

1800

126

2100

108

2400

2700

3000

3200

Load (VA)

Backup Time @ 48Vdc 100Ah (min)

Backup Time @ 48Vdc 200Ah (min)

500

613

1288

1000

268

613

1500

158

402

2000

111

271

2500

215

3000

182

3500

141

4000

112

4500

100

5000

5200

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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