Growcol DY-LG300S User manual

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Contents
Ⅰ.P r e fac e ----------------------------------------------------------------------------------2
Ⅱ.O verview of th e p rod u ct---------------------------------------------------------- --3
Ⅲ.Safety precau tion---------------------------------------------------------------------4
Ⅳ.Introduction ofthe function--------------------------------------------------------6
Ⅴ.H o w to u s e ------------------------------------------------------------------------------7
Ⅵ.F A Q & sol u tion ------------------------------------------------------------------------8
Ⅶ.P ictu re of th e panelstructure------------------------------------------------------10
Ⅷ.P rodu ct's T echnical P aram eters--------------------------------------------------15
Ⅸ.Diameter of conductor & table of current specification ---------------------18
Ⅹ.B attery m aintenance-----------------------------------------------------------------19
ⅰ.C are an d clean ing--------------------------------------------------------------------19
Product guarantee card-----------------------------------------------------------------20
Warning
Please don’t open or modify the part that isn’t explained in
the manual. It may cause serious accident if you do so.

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Ⅰ.Preface
Our company is a high-tech enterprises gathering independent
research and development, production and sale in an organic whole, we
have 10 years experience in the R&D and manufacture of the solar
energy high frequency inverter power supply. Main products include
solar energy generating system, PV and wind energy grid-connected
generation system, solar energy mobile power source, solar energy
multi-functional lighting power, pure sine wave inverter, the inverter
power source for sole purpose of communication, car kit, and electric
vehicles. We devote ourselves in exploiting the market of the innovative
products and improving service in order to become the industry pioneer
since the establishment.
Our products are widely used in state grid power generation, solar
energy generation, the motor home modification, power supply for the
army, war, disaster area, safety& monitoring, outdoor work, medical
emergency, steamer and yacht, frontier outpost, communication,
instrument, railway and other high-tech field .Meanwhile, we can design
the international certification like UL, FCC, ETL, CE and CCC
according to the customers’ requirement. Our products represent the
new wave of high-end inverter.

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Ⅱ. Product Overview
Many thanks for buying our inverters，please read the instruction carefully
before you using it, and safekeep it for future reference.
Our inverters apply advanced MPU intelligent control, the core IC and power
device apply superior imported device, which makes the outer circuit structure
concise and strict, the way and tactics to control flexible and strong. It is light
and has a reasonable design with the following characters, strong adaptability,
high reliability, low loss, high conversion efficiency, strong anti-interference.
Output waveform：pure sine wave
Input Voltage：DC12V/24V/48V/60V/72V/96V
Output voltage：AC110V/220V/230V
Status display：LED
Overvoltage undervoltage alarm，turn off
Overload alarm，turn off
Overtemperature alarm，turn off
Short circuit alarm，turn off
Cool intelligent fun
Ultra low noise, low radiation
Ⅲ. Safety Precaution

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Do not obey the preventive rules, you may hurt yourself or destroy the inverter
and your electric appliance.
1. Please pay attention to all the warning marks and obey to it, when you operate
the inverter.
2. Please make sure you have use the three phase plug when you need it and
examine if the inverter connects with the battery correctly
3. When the inverter need move or be reconnected, please make sure that the
inverter have stop. If not ,the output port may be electrification, you may get
electrocuted,
Danger! Electricity!
Our inverter output 220VAC power, and the output port may be electrification.
So do not insert anything into the output port except for the plug.
Do not get close to the inflammable and explosive dangerous goods
The locations of the inverter should be far away from the inflammable and
explosive dangerous goods
Do not dismantle the inverter
Dismantling or refitting the inverter, you may have a very dangerous accident.
Do not connect the inverter to the wrong place
Do not connect the inverter to AD power, such as your home use power.
Choose the Proper Battery
According to the inverters’ specification, inverter should connect with standard
12V/24V/48V/60V DA power.
Choose the Proper Wire
Choose wire with the proper wire diameter to bear the corresponding current to
avoid be fused.

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Keep Good Ventilation and Heat Dissipation
Inverter would generate heat when working, so do not make inverter close to the
thermal sensitive goods.And at the same time do not put anything on the inverters’
housing to keep heat dissipation holes and fan good ventilation.
Keep Dry
Inverter should keep away from the environment where is wet and closes to water.
Keep button off when cleaning, then clean with dry rag (wet rag can’t be used)
Keep the Wire be Connected Correctly.
The positive and negative terminals of the inverter should be connected to
the battery’s positive and negative terminals correctly. Otherwise it would blow
fuses. Inverter should shut off when it is out of state of use
Keep the Inverters locating in the Proper Environment.
Inverter should locate in cool environment, and the temperature should be
-15℃~60℃.
Children is forbidden close to it and juveniles is forbidden to use it
Ⅳ.The introduction of the function

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1. The function of the inverter output
When switch on the inverter on the front panel, the inverter source will change
the DC in the storage battery into sane wave AC of the rated voltage and
output it from the AC socket /terminal blocks.
2. The function of automatic voltage regulation
When the voltage of the storage battery waves between the under voltage
point and the over voltage point and when load changes in the rated power, the
machine is provided with the function of automatic voltage regulation when
the AC outputs.
3. The function of over voltage protection
When the voltage of the storage battery is higher than the voltage point ,the
inverter will cut off the AC automatically, meanwhile, the buzzer will give a
warning; the inverter will not t work again automatically until the voltage
drops to normal.
4. The function of under voltage protection
When the storage voltage is lower than the undervoltage point, this machine
will cut off the inverter output in order not to break the storage battery
because of overdischarge.
5. The function of overload protection
When the AC output power is over the rated power, the inverter will cut off
the AC output automatically, the buzzer will give a long warning, the inverter
will come back to normal only when a person cuts off the switch, repeals the
overload and starts the inverter again.
6. The function of overtemperature protection
If the temperature of the inner case is too high, this machine will cut off the
inverter output automatically, meanwhile, the buzzer will give a warning. The
instrument will start to output AC when the temperature comes back to
normal.
7. The function of short-circuit protection
When the end of the AC output shorts out from inner or outer part directly or
indirectly, the inverter will cut off the AC output automatically .The inverter
will renew to put out .This function protects the inverter from breaking

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effectively.
Ⅴ、Method of application
1. The choice of power source
The battery or DC stabilized power supply which is within the rated input voltage
must be used, they can offer enough working current (no less than the rated input
current of the inverter), for example, the output current of the battery of 500w,
12v inverter should be over 50A, the stability of the DC power supply should be
better than 1%, the output ripple should be less than 10Mv.
warning, If the acidic material contacts your skin or clothes when connecting storage
battery, please clean with water or soap water immediately. If the acidic material comes into
eyes, please clean your eyes with water for 20 minutes immediately and sent to hospital for
treatment. Metal tool and jewelry must be away from the storage battery in case of accident.
Safety goggles and protection suit must be worn to avoid danger if you operate in the high
voltage storage battery. ( ≥48v)
2、connect the power supply
Connect the terminal blocks of the cable and the input end of the inverter; connect
the other terminal block to the battery. The red cable of controller should clamp
the positive electrode and the black cable of controller clamp the cathode when
connecting the power
3. connect to the load
Firstly, the output parameter (voltage, effiency) of the inverter should meet the
requirement of the load input. When connecting the inverter to the power supply
correctly, the plug of the load should be inserted into the output socket of the
inverter; turn on the inverter, the green indicator light will be enlightened. At this
time, the inverter works normally.
Matters needing attention

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1. When connected to the wires, from the cathode of the inverter to the
cathode of the power supply at first, than from the anode of the inverter to the
anode of the power supply. The terminal/terminal services must be screwed,
otherwise the temperature of the wares will get high and the wire will melt
the insulation materials, finally result in danger of melting the contact.
2.If connect to multiple load devices, should open one by one and open the
equipment which the starting power is larger at first.
3. However the inverter has the overvoltage protection, if the input voltage is
over the 30% of the rated voltage, the inverter may be demanded.
4.After using continuously, the surface temperature of the machine shell may
be up to 60%( related to the load power, belong to normal situation ) ,but it
need to be air circulation and be far away from the object that is easy to be
influenced by high temperature.
5. When the inverter is no-load, it still flows through a tiny electrical current.
When the inverter is not used for a long time, please cut the power supply.

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Ⅵ.C om m on P roblem and Solution
1. The Inverter can’t Turn On
1.1The battery voltage is too low or demanded, to charge the battery again or
change the battery.
1.2The wire between the batteries with inverter don’t connect successfully,
please connect it again.
1.3The anode and cathode of the battery or inverter is reversed, the fuse is
fusing, please replace the suitable fuse.
2. The Inverter has not Output
2.1The battery voltage is too low, to charge the battery again or change it,
and check the connection of the wires.
2.2Input voltage is too high, according to the rated input voltage of the
inverter to adjust the suitable input voltage
2.3Load power is larger than the standard power, to use the electric which the
power is lower than standard power or change the larger standard power
inverter.
The inverter has over temperature protection, put it to lower the temperature
for fifteen minutes in the ventilated place

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2.4When using the low power electric, the inverter is failed to start-up, than
the peak power of the electric is higher than the inverter, to change the larger
power inverter.
3. Inverter alarm
3.1Under voltage alarm, the input voltage is too low, need to recharge the
battery or replace the battery.
3.2 Overvoltage alarm, the input voltage is too high, need to replace the
suitable input voltage.
3.3 Over temperature alarm, put the inverter for 15 minutes in cool ventilated
place.
3.4 Overload alarm, turn off a part of the load or use electrical which the
power is less than inverter rated power
4, the using time of the battery is too short
4.1Power consumption of electrical appliances is too big, change the battery
with large capacity.
4.2The battery is bad or damaged, replace the battery.
4.3 The electricity of the battery is not enough, replace the battery or
recharge the battery.

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4.4The wires attenuate decay the voltage, shorten the length of wire or use
the thicker wire.
5. The inverter can only be carried on small power load
When a current flows through a wire ,voltage will decay, shorten the length
of wire or use the more thicker wires.
Ⅶ. Panel diagram
Panel pilot lamp directions
Green light: when the inverter works, the light will brighten.
Red light: when the input voltage is too low, too high ,short ,overload or over
temperature ,the light will brighten.
300W panel diagram
1．AC output outlet
2．AC output terminals
3．Fault indicator
4．Work indicator lamp
5．The power switch AC output panel
1．Fan
2．DC input negative terminal
3．DC input anode terminal
DC input panel

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600W/800W panel
diagram
1．AC output terminals
2．Fault indicator
3．Work indicator lamp
4．AC output outlet
5．The power switch
AC output panel
1．DC input negative terminal
2．Fan
3．DC input anode terminal
DC input panel

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1000W/1500W/2000W panel diagram
1．AC output terminals
2．Fault indicator
3．Work indicator lamp
4．AC output outlet
5．The power switch
AC output panel
1、4．Fans
2．DC input anode
terminal
3．DC input negative
terminal
DC input panel

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2000W/2500W/3000W /4000W/5000W/6000Wpanel diagram
○
4○ 3○ 2
○
1
AC output panel
○
2○ 1○ 3
DC input panel
1. Ac output socket
2. Fault indicating lamp
3. Work indicating lamp
4. Power switch
1. DC input anode terminal
2. Fan
3. DC input negative terminal

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2000W/2500W/3000W Size and shape
4000W/5000W/6000W Size and shape

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Ⅷ、Product technical parameter
Table One (300W/600W/800W/1000W)
Model 300W 600W 800W 1000W
DC
Input
Rated Voltage
DC12V / 24V/48V
Low Pressure
DC10.5±0.3V / 21.0±0.6V / DC40.0±0.6V
Low Voltage Turn
DC9.5±0.6V / 20.0±0.6V / DC39.0±0.6V
Over Voltage
DC15.5±0.3V / 31.0±0.6V / DC60.0±0.6V
Efficiency
> 88%
DC Wiring Column
Red（+）/Black（-）Pure Copper Wiring Column
AC
Output
Rated Power
300W
600W
800W
1000W
Continuous Power
300W
600W
800W
1000W
Overload protection
120%±10%load
Output Voltage
110 V / 220 V
Voltage Waveform
pure sine wave
Frequency
60Hz / 50Hz
AC Socket
International Consent、3P line contact bank
Manage
ment
Status display
LED
Malfunction
Buzzle
Fan Control Intelligent Temperature Control
environ
ment
/security
Working
-15℃～60℃
Storage
-30℃～70℃
Working Humidity
5%～95%，No Condensation
Altitude
＜3000m
Noise
within 1m <60dB
Standards
CE 、FCC
EMC
B ,EN50091-2,FCC Part15,IEC1000-2-2
Package
Product Size(mm)
179×150×50
247×150×70
381×150×70
381×150×70
Carton Size(mm)
252×192×94
320×200×140
415×200×140
415×200×140
Net Weight(KG) 0.9KG 1.5KG 2.0KG 2.4KG

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Table Two (1500W/2000W/2500W/3000W)
Model
1500W 2000W 2500W 3000W
DC
Input
Rated Voltage
DC12V / 24V/48V
Low Pressure
DC10.5±0.3V / 21.0±0.6V / DC40.0±0.6V
Low Voltage Turn
DC9.5±0.6V / 20.0±0.6V / DC39.0±0.6V
Over Voltage
DC15.5±0.3V / 31.0±0.6V / DC60.0±0.6V
Efficiency
> 88%
DC Wiring
Red（+）/Black（-）Pure Copper Wiring Column
AC
Output
Rated Power
1500W
2000W
2500W
3000W
Continuous
1500W
2000W
2500W
3000W
Overload
120%±10%load
Output Voltage
110 V / 220 V
Voltage
pure sine wave
Frequency
60Hz / 50Hz
AC Socket
International Consent、3P line contact bank
Manage
ment
Status display
LED
Malfunction
Buzzle
Fan Control Intelligent Temperature Control
environ
ment
/security
Working
-15℃～60℃
Storage
-30℃～70℃
Working
5%～95%，No Condensation
Altitude
＜3000m
Noise
within 1m <60dB
Standards
CE 、FCC
EMC
B ,EN50091-2,FCC Part15,IEC1000-2-2
Package
Product Size(mm)
410×150×70
410×150×70
410×256×136
410×256×136
Carton Size(mm)
415×200×140
415×200×140
480×325×210
480×325×210
Net Weight(KG)
2.6KG 3.5KG 6KG 6.8KG

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Table Three (4000W/5000W/6000W)
Model 4000W 5000W 6000W
DC
Input
Rated Voltage
DC12V / 24V/48V
Low Pressure
DC10.5±0.3V / 21.0±0.6V / DC40.0±0.6V
Low Voltage Turn
DC9.5±0.6V / 20.0±0.6V / DC39.0±0.6V
Over Voltage
DC15.5±0.3V / 31.0±0.6V / DC60.0±0.6V
Efficiency
> 88%
DC Wiring Column
Red（+）/Black（-）Pure Copper Wiring Column
AC
Output
Rated Power
4000W
5000W
6000W
Continuous Power
4000W
5000W
6000W
Overload
120%±10%load
Output Voltage
110 V / 220 V
Voltage Waveform
pure sine wave
Frequency
60Hz / 50Hz
AC Socket
International Consent、3P line contact bank
Manage
ment
Status display
LED
Malfunction
Buzzle
Fan Control Intelligent Temperature Control
environ
ment
/security
Working
-15℃～60℃
Storage
-30℃～70℃
Working Humidity
5%～95%，No Condensation
Altitude
＜3000m
Noise
within 1m <60dB
Standards
CE 、FCC
EMC
B ,EN50091-2,FCC Part15,IEC1000-2-2
Package
Product Size(mm)
530×256×136
530×256×136
530×256×136
Carton Size(mm)
600×325×210
600×325×210
600×325×210
Net Weight(KG)
8.5KG 9.5KG 10.5KG

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Ⅸ.Wire diameter and current
The impedance of wire is in proportion to its length and in inverse
proportion to its diameter. When you use the power, you should pay
more attention to the input and output of the wire, in case that it may
have an accident because of the overheating caused by over-current.
Here is a table about the relationship between wire diameter and current
in different temperatures. (Attention: The wire should apply to the
below table, otherwise it can’t be used)
diameter
（
mm
）
Cooper wire’s temperature when power on
350C 600C 800C 900C
Current
（
A
）
2.5m2 15 20 25 25
4m2 20 25 30 30
6 m2 30 35 40 40
8 m2 40 50 55 55
14 m2 55 65 70 75
22 m2 70 85 95 95
30 m2 85 100 110 110
38 m2 95 115 125 130
50 m
2
110
130
145
150
60 m2 125 150 165 170
70 m2 145 175 190 195
80 m2 165 200 215 225
100 m2 195 230 250 260
Attention:
1. Wire length shouldn’t be too long, when really need more than 3 meters
length shall be usually 1 or 2 times so now as the original with 2.5mm2wire should
be made of 6 mm2
2. The portion of wire application international product strands of wire.

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Ⅹ.Battery Maintenance
Battery is a very important part of the inverter power system, the battery life
depends on the ambient temperature and discharge times used under high
temperature or depth discharge will shorten the battery life
1. Battery using the environment temperature should be between15 to 25
2 .If shall not apply to the inverter for a long time, it is suggest that every 3
months for the battery
3. Battery should not be individual replacement; replacement of batteries should
be strictly abided by during the supplier's instructions
4. Under the normal circumstances, the battery life for 3 to 5 years if found
condition need to replace the battery, must be a professional operation
Ⅺ、CARE AND CLEANING
1. Use environment and the storage of this product service life and reliability
have certain influence, therefore, please pay attention to avoid in the following
environments
1.1Beyond the specifications stipulated in the high and low temperature and damp
environment
1.2 The places where vibration and vulnerable to collision
1.3 With gold dust properties corrosive substance salt and the site of combustible
gas
2. If placed for a long time not to use, must place the inverter in the dry
environment, inverter boot before, must first make the environment temperature
rebounded above zero and save for a period of time
3. Regularly use dry cloth gently wipes off the dust on the surface of the inverter
cabinet
4. Regularly use brush to clean the fan outlet and inlet