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10. About soft start technology
This inverter has advanced soft start function. The output voltage rises up from
low to normal when the inverter is turned on.
1.This can reduce high startup currents, which can make startup easier for large
inductive loads.
2.As for the large inductive loads, such as electric tools and capacitive loads,
We suggest turning on the switch of the appliance firstly and thenthe inverter's.
The soft start .May be enough to power the high staring.
11. Working indication
When the product is working, the digital tube will alternately display the input
voltage and the output power. When the product enters the protection state, the
digital tube the current state of protection, as shown below:
1. Input(V) LED is on, digital display is the value of the input voltage
2. Output(KW) LED is on, digital display is the value of the output power
3. Output(W) LED is on, digital display is the value of output power
4. Digital tube shows LO, indicates the current status of undervoltage protection
5. Digital tube shows HI, indicates the current status of overvoltage protection
6. Digital tube shows OL, indicates the current status of output overload or
short-circuit protection
7. Digital tube shows OH, indicates the current status of overheat protection.
12. Protection Features
1. Input under-voltage alarm: When the input DC voltage is lower than 9.8V
(19.6V/39.2V), the buzzer will whistle intermittently to remind that the inverter will
go into the under voltage protection. Pay attention to save the data if you are using
computer.
SINE WAVE
115V/230V A C
MODIFIED
SINE WAVE
115V/230V A C
Modified Sine Wave and Sine Wave Comparison
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2) Connect the solar panel’s positive and negative electrode to the positive and
negative terminal of the solar input of inverter, pay attention to the correct polarity.
3) Normal charging panel quantity of electric charge indicator lights light up, the
user can know the size of the battery charging voltage, when the "full" indicator
lights up, indicating that the battery is fully charged, the user should promptly
disconnect the solar cell and product connected to stop charging, avoid
overcharge. Notice: It will destroy inverter when solar charging input voltage too
high, so please choose the working voltage 15V-18V, open voltage≤22V, power
600W solar panel.
8. Operational principle:
The inverter converts DC to AC, conversion process is divided into two steps, the
first step is to convert low voltage DC to high voltage DC , the second step is using
the full bridge converter tech to convert high voltage direct current into alternating
current.
The conversion circuit adopts advanced power device and high frequency power
conversion technology. Compared with the traditional inverter using the power
frequency transformer, it has the characteristics of small size, light weight and high
conversion efficiency etc.
9. OUTPUT VOLTAGE AND WAVE FORM:
The output voltage waveform of the inverter is called "quasi sine wave" or
"modified sine wave", it is a step waveform similar like household alternating
current , this type of waveform is applicable to most of the load, including linear or
switching power supply, transformer, electric motor etc..
Since the output voltage waveform of the inverter is different from AC, RMS with
general analog or digital multimeter can not accurately measure the output of the
inverter, please use the true RMS digital multimeter to measure, such as FLUKE
177/179 multimeter.
DC input Internal
fuse
DC step
up circuit
DC to AC
coversion
circuit
Output
socket
AC output
