User Manual 2KVA-3KVA INVERTER

User Manual 2KVA-3KVA INVERTER
User Manual
2KVA-3KVA INVERTER
Version: 1.1
Table Of Contents
1. Introduction ................................................................................................................................................. 1 Features ........................................................................................................................................................... 1 2. Product Overview ........................................................................................................................................ 1 3. Safety Instructions...................................................................................................................................... 2 4. Installation ................................................................................................................................................... 3 Battery Connection .......................................................................................................................................... 4 AC Output Connection ..................................................................................................................................... 5 5. OPERATION .................................................................................................................................................. 5 Power ON/OFF ................................................................................................................................................ 5 Operation and Display Panel ........................................................................................................................... 5 LCD Display Icons ........................................................................................................................................... 6 LCD Setting...................................................................................................................................................... 8 Display Setting ................................................................................................................................................. 9 Operating Mode Description .......................................................................................................................... 10 Fault Reference Code .................................................................................................................................... 10 Warning Indicator ........................................................................................................................................... 11 6. SPECIFICATIONS ....................................................................................................................................... 12 7. TROUBLE SHOOTING ................................................................................................................................ 13 Appendix: Approximate Back-up Time Table ........................................................................................... 14 1. Introduction
This inverter can offer uninterruptible power support with portable size. Its comprehensive LCD display offers
user-configurable and easy-accessible button operation based on different applications.
Features

Pure sine wave inverter

Isolation design between input and output for safety guarantee

Light weight and anodised aluminum casing

Low power consumption for energy saving

Overload/ DC reverse/ Over temperature/ short circuit protection
2. Product Overview
1. LCD display
2. Status indicator
3. Fault indicator
4. Function buttons
5. Power on/off switch
6. Battery input
7. AC output
8. Communication port
9. Remote on/off control port
10. GND Terminal
1
3. Safety Instructions
WARNING: This manual contains important safety and operating instructions. Read this
manual carefully before installations and operations, keep it 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.
2.
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.
3.
To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning.
Turning off the unit will not reduce this risk.
4.
CAUTION – Only qualified personnel can install this device with battery.
5.
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.
6.
Please strictly follow installation procedure when you want to disconnect DC terminals. Please refer to
INSTALLATION section of this manual for the details.
7.
GROUNDING INSTRUCTIONS -Inverter should be connected to a permanent grounded wiring system.
Be sure to comply with local requirements and regulation to install.
8.
NEVER cause AC output and DC input short circuited.
9.
Warning!! Only qualified service persons are able to service this device. If errors still persist after
following troubleshooting table, please send this inverter back to local dealer or service center for
maintenance.
2
4. Installation
NOTE: 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
 Mounting bracket x 2
Mounting the Unit
Please utilize the delivered mounting brackets for problem-free installation of the inverter. Installation to the
wall should be implemented with the proper screws. Mount the wall bracket so that the inverter can be easily
attached to the wall. After that, the device should be bolted on securely.
1. Screw two mounting brackets on the back of 2. Mount the mounting plate with appropriate screws
the inverter with supplied screws as shown in
(M4 or M5) into four holes to fix the unit in place.
chart.
3. Check if the inverter is firmly secured.
3
Battery Connection
Before connecting battery wirings, please take off bottom cover by removing two screws as shown below.
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
Amperage
2KVA
66A
3KVA
100A
Battery
capacity
Wire Size
Cable
mm2
Ring Terminal
Dimensions
D (mm)
L (mm)
1*6AWG
14
6.4
29.2
2*10AWG
8
6.4
23.8
100AH
1*4AWG
22
6.4
33.2
200AH
2*8AWG
14
6.4
29.2
100AH
Torque
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. 2KVA/3KVA model supports 24VDC system. Connect all battery packs as below chart. It’s suggested to
connect at least 100Ah capacity battery.
NOTE: Please only use sealed lead acid battery or sealed GEL/AGM lead-acid battery.
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 is correctly
4
connected and ring terminals are tightly screwed to the battery terminals.
4. Fixing the bottom cover on the unit by two screws, refer to the picture in step 1.
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 Output Connection
Connect the load to the output sockets.
5. OPERATION
Power ON/OFF
Once the unit has been properly installed and the batteries are connected well, simply press On/Off switch
to turn on the unit. The unit will work automatically. When press the switch again, the unit will be turned
off.
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
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power information.
LCD display
LED indicators
Function keys
LED Indicator
LED Indicator
Green
Red
Messages
Flashing
Output is powered in inverter mode.
Solid On
Fault occurs in the inverter.
Flashing
Warning condition occurs in the inverter.
Function Keys
Function Key
Description
ESC
To exit setting mode
UP
To go to previous selection
DOWN
To go to next selection
ENTER
To confirm the selection in setting mode or enter setting mode
LCD Display Icons
Icon
Function description
Input Source Information
Indicate battery voltage.
Configuration Program and Fault Information
Indicates the setting programs.
Indicates the warning and fault codes.
6
Warning:
flashing with warning code.
Fault:
lighting with fault code
Output Information
Indicate output voltage, output frequency, load percent, load in VA and load in
Watt.
Battery Information
Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100%.
Battery capacity be presented as below.
Load Percentage
Battery Voltage
LCD Display
< 1.717V/cell
1.717V/cell ~ 1.8V/cell
Load >50%
1.8 ~ 1.883V/cell
> 1.883 V/cell
< 1.817V/cell
1.817V/cell ~ 1.9V/cell
50%> Load > 20%
1.9 ~ 1.983V/cell
> 1.983
< 1.867V/cell
1.867V/cell ~ 1.95V/cell
Load < 20%
1.95 ~ 2.033V/cell
> 2.033
Load Information
Indicates overload.
Indicates the load level by 0-24%, 25-50%, 50-74% and 75-100%.
0%~25%
25%~50%
Mode Operation Information
7
50%~75%
75%~100%
Indicates the DC/AC inverter circuit is working.
Mute Operation
Indicates unit alarm is disabled.
LCD Setting
After pressing and holding ENTER button for 3 seconds, the unit will enter setting mode. Press “UP” or “DOWN”
button to select setting programs. And then, press “ENTER” button to confirm the selection or ESC button to
exit.
Setting Programs:
Program
Description
Selectable option
Escape
00
04
Exit setting mode
Power saving mode
enable/disable
Saving mode disable
If disabled, no matter connected load
(default)
is low or high, the on/off status of
inverter output will not be effected.
Saving mode enable
If enabled, the output of inverter will
be off when connected load is pretty
low or not detected.
Restart disable
06
Auto restart when overload
occurs
(default)
Restart disable
07
09
18
Auto restart when over
temperature occurs
Restart enable
Restart enable
(default)
50Hz (default)
60Hz
Alarm on (default)
Alarm off
Return to default
If selected, no matter how users
display screen
switch display screen, it will
(default)
automatically return to default display
Output frequency
Alarm control
screen (Input voltage /output voltage)
19
Auto return to default
display screen
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.
8
Backlight on
20
Backlight control
(default)
Record enable
25
Backlight off
Record disable (default)
Record Fault code
Display Setting
The LCD display information will be switched in turns by pressing “UP” or “DOWN” key. The selectable
information is switched as below order: battery voltage, output voltage, output frequency, load percentage,
load in Watt, load in VA.
Selectable information
LCD display
Battery voltage=25.5V, output voltage=230V
Battery voltage/Output voltage
(Default Display Screen)
Battery voltage=25.5V, Output frequency=50Hz
Output frequency
Battery voltage=25.5V, Load percentage=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.
9
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.
Operating Mode Description
Operation mode
Description
Standby mode / Fault mode
LCD display
No output is supplied by the
unit.
The unit will provide output
Battery Mode
Power from battery.
power from battery and PV
power.
Fault Reference Code
Fault Code
Fault Event
01
Fan is locked when inverter is off.
02
Over temperature
03
Battery voltage is too high
04
Battery voltage is too low
05
Output short circuited or over temperature is detected
by internal converter components.
06
Output voltage is abnormal.
07
Overload time out
08
Bus voltage is too high
09
Bus soft start failed
10
Icon on
Warning Indicator
Warning
Code
Warning Event
Audible Alarm
01
Fan is locked when
inverter is on.
Beep three times every
second
03
High battery
Beep once every second
04
Low battery
Beep once every second
07
Overload
Beep once every 0.5 second
11
Icon flashing
6. SPECIFICATIONS
INVERTER MODEL
Rated Output Power
2KVA
3KVA
2KVA/1.6KW
3KVA/2.4KW
Output Voltage Waveform
Pure Sine Wave
Output Voltage Regulation
230Vac±5%
Output Frequency
50Hz
Peak Efficiency
90%
Overload Protection
[email protected]≥150% load; [email protected]%~150% load
2* rated power for 5 seconds
Surge Capacity
Nominal DC Input Voltage
24Vdc
Cold Start Voltage
23.0Vdc
Low DC Warning Voltage
@ load < 20%
22.0Vdc
@ 20% ≤ load < 50%
21.4Vdc
@ load ≥ 50%
20.2Vdc
Low DC Warning Return Voltage
@ load < 20%
23.0Vdc
@ 20% ≤ load < 50%
22.4Vdc
@ load ≥ 50%
21.2Vdc
Low DC Cut-off Voltage
@ load < 20%
21.0Vdc
@ 20% ≤ load < 50%
20.4Vdc
@ load ≥ 50%
19.2Vdc
High DC Recovery Voltage
29Vdc
High DC Cut-off Voltage
31Vdc
No Load Power Consumption
<20W
Saving Mode Power Consumption
<10W
Operating Temperature Range
0°C to 55°C
Storage temperature
-15°C~ 60°C
Humidity
5% to 95% Relative Humidity (Non-condensing)
Dimension (D*W*H), mm
369 x 232 x 82
Net Weight, kg
4.3
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7. TROUBLE SHOOTING
Problem
Unit shuts down
automatically
during startup
process.
No response after
power on.
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. Charge battery.
2. Replace battery.
No indication.
1. The battery voltage is far too
low. (<1.4V/Cell)
2. Battery polarity is connected
reversed.
Fault code 07
Overload error. The inverter is
overload 110% and time is up.
1. Check if batteries and the
wiring are connected well.
2. Charge battery.
3. Replace battery.
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.
Check if spec and quantity of
batteries are meet
requirements.
Output short circuited.
Fault code 05
Buzzer beeps
continuously and
red LED is on.
What to do
Fault code 02
Temperature of internal converter
component is over 120°C.
Internal temperature of inverter
component is over 100°C.
Fault code 03
The battery voltage is too high.
Fault code 01
Fan fault
Replace the fan.
Fault code 06
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
Internal components failed.
Return to repair center.
13
Appendix: Approximate Back-up Time Table
Model
2KVA
3KVA
Load (VA)
Backup Time @ 24Vdc 100Ah (min)
Backup Time @ 24Vdc 200Ah (min)
200
766
1610
400
335
766
600
198
503
800
139
339
1000
112
269
1200
95
227
1400
81
176
1600
62
140
1800
55
125
2000
50
112
300
449
1100
600
222
525
900
124
303
1200
95
227
1500
68
164
1800
56
126
2100
48
108
2400
35
94
2700
31
74
3000
28
67
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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