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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 required to have a disconnect device 
in some applications, however, it’s still required to have over-current protection installed. Please refer to typical 
amperage in below table as required fuse or breaker size.   
 

WARNING!

 All wiring must be performed by 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 

Battery 

Capacity 

Wire Size 

Ring Terminal 

Torque 

Value 

Cable 
mm

2

 

Dimensions 

D (mm)  L (mm) 

3.6KW 

100A 

200AH               

1*4AWG 

22 

6.4 

33.5 

2~3 Nm 

5.6KW 

137A 

200AH               

1*2AWG or 2*6AWG 

28 

6.4 

42.7 

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.

 

Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the nuts 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.   

 

Ring terminal: 

 

Summary of Contents for 10120227

Page 1: ...PowerWalker SOLAR INVERTER LGT 3600 5600VA OFF Grid Charger Version 1 3 User Manual ...

Page 2: ...ection 7 Final Assembly 9 Communication Connection 9 Dry Contact Signal 10 OPERATION 11 Power ON OFF 11 Operation and Display Panel 11 LCD Display Icons 12 LCD Setting 15 LCD Display 32 Operating Mode Description 38 Faults Reference Code 41 Warning Indicator 42 BATTERY EQUALIZATION 43 SPECIFICATIONS 44 Table 1 Line Mode Specifications 44 Table 2 Inverter Mode Specifications 45 Table 3 Charge Mode ...

Page 3: ...rrectly operate this inverter charger 8 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 9 Please strictly follow installation procedure when you want to disconnect AC or DC terminals Please refer to INSTALLATION section of this manual for the detai...

Page 4: ... mobile monitoring APP is available Supports USB On the Go function Data log events stored in the inverter Built in anti dusk kit Reserved communication port for BMS Battery independent function Parallel operation up to 9 units Basic System Architecture The following illustration shows basic application for this unit It also required the following devices to have a complete running system Generato...

Page 5: ...y 3 Touchable Function keys 4 PV connectors 5 AC input connectors 6 AC output connectors Load connection 7 Battery connectors 8 Current sharing port 9 Parallel communication port 10 Circuit breaker 11 Power switch 12 Dry contact 13 USB port as USB communication port and USB function port 14 RS 232 communication port 15 BMS communication port CAN RS 485 or RS 232 Single model ...

Page 6: ...efore 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 10 C and 50 C to ensure optimal operation The recommended installation position is to be adhered to the wall vertically Be sure to keep other obj...

Page 7: ...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 Battery Capacity Wire Size Ring Terminal Torque Value Cable mm2 Dimensions D mm L mm 3 6KW 100A 200AH 1 4AWG 22 6 4 33 5 2 3 Nm 5 6KW 137A 200AH 1 2AWG or 2 6AWG 28 6 4 42 7 2 3 Nm Please follow below...

Page 8: ...AC input is connected to IN and load AC to OUT and not the wrong way round and also that Line and Neutrals are connected correctly WARNING All wiring must be performed by 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 c...

Page 9: ...A 10AWG 1 2 1 6Nm PV Module Selection When selecting proper PV modules please be sure to consider below parameters 1 Open circuit Voltage Voc of PV modules do not exceed 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 3 6KW 6 5KW Max PV Array Open Circuit Voltage 500 Vdc 450 Vdc PV A...

Page 10: ...ction cable to negative pole of PV input connector Recommended PV module Configuration PV Module Spec reference 250Wp Vmp 30 7Vdc Imp 8 15A Voc 37 4Vdc Isc 8 63A Cells 60 Total solar input power Solar input Q ty of modules 1500W 6 pieces in series 6 pcs 2000W 8 pieces in series 8 pcs 2750W 11 pieces in series 11 pcs 3000W 6 pieces in series 2 strings in parallel 12 pcs 4000W 8 pieces in series 2 s...

Page 11: ...etailed software operation refer to the software user manual on the bundled CD Wi Fi Connection This unit is equipped with a Wi Fi transmitter Wi Fi transmitter can enable wireless communication between off grid inverters and monitoring platform Users can access and control the monitored inverter with downloaded APP You may find WatchPower app from the Apple Store or WatchPower Wi Fi in Google Pla...

Page 12: ...y contact port NC C NO C Power Off Unit is off and no output is powered Close Open Power On Output is powered from Battery power or Solar energy Program 01 set as USB utility first or SUB solar first Battery voltage Low DC warning voltage Open Close Battery voltage Setting value in Program 13 or battery charging reaches floating stage Close Open Program 01 is set as SBU SBU priority Battery voltag...

Page 13: ...e chart below includes one RGB LED ring four touchable function keys and a LCD display to indicate the operating status and input output power information Touchable Function Keys Function Key Description ESC To exit the setting USB function selector To enter USB function setting Up To last selection Down To next selection Enter To confirm enter the selection in setting mode LCD Display Touchable F...

Page 14: ...ates the PV voltage current and power Indicates the battery voltage charging stage configured battery parameters charging or discharging current 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 ...

Page 15: ...other two bars will flash in turns 2 167 V cell The right three bars will be on and the left bar 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 Load 50 1 85V cell 1 85V cell 1 933V cell 1 933V cell 2 017V cell 2 017V cell Load 50 1 892V cell 1 892V cell 1 975V cell 1 975V cell 2 058...

Page 16: ...ected as SBU AC Input Voltage Range Setting Display Indicates setting program 03 is selected as The acceptable AC input voltage range will be within 170 280VAC Indicates setting program 03 is selected as The acceptable AC input voltage range will be within 90 280VAC Operation Status Information Indicates unit connects to the mains Indicates unit connects to the PV panel Indicates battery type Indi...

Page 17: ... 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 SBU priority Solar energy provides power to the 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 b...

Page 18: ...disable Saving mode disable default If disabled no matter connected load 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 05 Battery type AGM default Flooded User Defined If User Defined is selected battery charge voltage and low DC cut off voltage can be set u...

Page 19: ...No need for further setting LIb protocol compatible battery Select LIb if using Lithium battery compatible to Lib protocol If selected programs of 02 26 27 and 29 will be automatically set up No need for further setting 3rd party Lithium battery If selected programs of 02 26 27 and 29 will be automatically set up No need for further setting Please contact the battery supplier for installation proc...

Page 20: ...lity charger 30A default For 3 6K model setting range is from 2A then 10A to 100A For 5 6K model setting range is from 2A then 10A to 120A Increment of each click is 10A 12 Setting voltage point back to utility source when selecting SBU SBU priority in program 01 46V default Setting range is from 44V to 57V Increment of each click is 1V 5 default If WECO battery is selected in program 05 the setti...

Page 21: ...turn on when the device is powered on Auto turn on disable default Auto turn on enable 15 Lithium battery turn on immediately NOTE This setting is effective only when program 14 is set as enable Turn on immediately disable default Turn on immediately enable 16 Charger source priority To configure charger source priority If this inverter charger is working in Line Standby or Fault mode charger sour...

Page 22: ... 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 20 Backlight control Backlight on default Backlight off 22 Beeps while primary source is interrupted Alarm on d...

Page 23: ...is program can be set up Setting range is from 48 0V to 64 0V Increment of each click is 0 1V 27 Floating charging voltage 54V default If User Defined is selected in program 5 this program can be set up Setting range is from 48 0V to 64 0V Increment of each click is 0 1V 28 AC output mode This setting is only available when the inverter is in standby mode Switch off Single This inverter is used in...

Page 24: ... 0 1V Low DC cut off voltage will be fixed to setting value no matter what percentage of load is connected 32 Bulk charging time C V stage If User Defined is selected in program 05 this program can be set up Automatically Default If selected inverter will judge this charging time automatically 5 min The setting range is from 5 min to 900 min Increment of each click is 5 min 900 min ...

Page 25: ...48V to 64V Increment of each click is 0 1V 35 Battery equalized time 60min Default Setting range is from 5min to 900min Increment of each click is 5min 36 Battery equalized timeout 120min Default Setting range is from 5min to 900 min Increment of each click is 5 min 37 Equalization interval 30days Default Setting range is from 0 to 90 days Increment of each click is 1 day 39 Equalization activated...

Page 26: ...tion time arrives based on program 37setting At this time will not be shown in LCD main page 40 Reset all stored data for PV generated power and output load energy Not reset Default Reset 83 Erase all data log Not reset Default Reset 84 Data log recorded interval The maximum data log number is 1440 If it s over 1440 it will re write the first log 3 minutes 5 minutes 10 minutes default 20 minutes 3...

Page 27: ...om 1 to 31 88 Time setting Month For month setting the range is from 1 to 12 89 Time setting Year For year setting the range is from 17 to 99 91 On Off control for RGB LED It s necessary to enable this setting to activate RGB LED lighting function Enabled default Disable 92 Brightness of RGB LED Low Normal default High ...

Page 28: ... and nominal PV power If Solid on is selected in 38 LED ring will light up with background color setting in 40 If Power wheel is selected in 38 LED ring will light up in 4 levels If cycling or chasing is selected in 38 LED ring will light up in 12 levels Battery capacity percentage Default LED lighting portion will be changed by battery capacity percentage If Solid on is selected in 38 LED ring wi...

Page 29: ...ls If cycling or chasing is selected in 38 LED ring will light up in 12 levels Energy source Grid PV Battery If selected the LED color will be background color setting in 40 in AC mode If PV power is active the LED color will be data color setting in 41 If the remaining status the LED color will be set in 42 Battery charge discharge status If selected the LED color will be background color setting...

Page 30: ...a Color for RGB LED Pink Orange Yellow Green 97 Data Color for RGB LED Blue Sky blue Purple Default Other If selected the background color is set by RGB via software 98 Background color of RGB LED Only available when program 95 is set as EGS Energy source Grid PV Battery Pink Orange ...

Page 31: ...ss button to select timer setting for output source priority There are three timers to set up Press or button to select specific timer option Then press to confirm timer option Press or button to adjust starting time first and the setting range is from 00 to 23 Increment of each click is one hour Press to confirm starting time setting Next the cursor will jump to right column to set up end time On...

Page 32: ...ss or button to select specific timer option Then press to confirm timer option Press or button to adjust starting time first and the setting range is from 00 to 23 Increment of each click is one hour Press to confirm starting time setting Next the cursor will jump to right column to set up end time Once end time is set completely press to confirmall setting Solar first Sloar and utility Only sola...

Page 33: ...tion is to over write all parameter settings TEXT file with settings in the USB disk from a previous setup or to duplicate inverter settings Please check with your dealer or installer for detail instructions Export data log After entering USB function setting press button twice to switch to export data log function and it will show LOG in the LCD Press button to confirm the selection for export da...

Page 34: ...ectable information LCD display Default Display Screen Utility voltage Utility frequency Input Voltage 230V Input frequency 50Hz PV voltage PV current PV power PV voltage 260V PV current 2 5A PV power 1500W Battery voltage charging stage Configured battery parameters Charging or discharging current Battery voltage 50 4V Bulk charging voltage 56 4V Charging current 20A ...

Page 35: ...harging voltage 54 0V Charging current 2A Battery voltage 50 4V Low DC cut off voltage 44 0V Discharging current 20A Output voltage load in VA load in Watt switch every 5 second Output frequency Output voltage 230V Output frequency 60Hz Output voltage load in VA load in Watt switch every 5 second Output frequency Load in VA 550VA Output frequency 60Hz ...

Page 36: ...put voltage load in VA load in Watt switch every 5 second Output frequency Load in Watt 600W Output frequency 60Hz Real date Real date Dec 14 2020 Real time Real time 11 31 PV energy generation today PV energy generation today 0Wh ...

Page 37: ... month PV energy generation this month 0 5kWh PV energy generation this year PV energy generation this year 0 5kWh Total PV energy generation Total PV energy generation 0 5kWh Load output energy today Load output energy today 0Wh ...

Page 38: ... this month Load output energy this month 0 4kWh Load output energy this year Load output energy this year 0 4kWh Load output total energy Load Output Total energy 0 4kWh Main CPU version checking Main CPU version 00050 72 ...

Page 39: ...37 Secondary CPU version checking Secondary CPU version 00022 01 Wi Fi version checking Wi Fi version 00088 88 ...

Page 40: ...mode Note Standby mode The inverter is not turned on yet but at this time the inverter can charge battery without AC output No output is supplied by the unit but it still can charge batteries Charging by utility and PV energy Charging by utility Charging by PV energy No charging ...

Page 41: ... is supplied by the unit No charging Line Mode The unit will provide output power from the mains It will also charge the battery at line mode Charging by utility and PV energy Charging by utility 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 ...

Page 42: ...lar first or SBU is selected as output source priority and battery is not connected solar energy and the utility will provide the loads Power from utility Battery Mode The unit will provide output power from battery and or PV power 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 ...

Page 43: ...Faults Reference Code Fault Code Fault Event Icon on 01 Fan is locked when inverter is off 02 Over temperature 03 Battery voltage is too high 05 Output short circuited 06 Output voltage is too high 07 Overload time out 08 Bus voltage is too high 09 Bus soft start failed 10 PV over current 11 PV over voltage 12 DCDC over current 51 Over current 52 Bus voltage is too low ...

Page 44: ...01 Fan is locked when inverter is on Beep three times every second 02 Over temperature None 03 Battery is over charged Beep once every second 04 Low battery Beep once every second 07 Overload Beep once every 0 5 second 10 Output power is derated Beep twice every 3 seconds 32 Communication failure between inverter and display panel None Battery equalization None Battery is not connected None ...

Page 45: ...n 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 ...

Page 46: ...age 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 Line mode Circuit Breaker Battery mode Electronic Circuits Efficiency Line Mode 95 Rated R load battery full charged Transfer Time 10ms typical UPS 20ms typical Appliances Output power der...

Page 47: ... 90 Overload Protection 5s 150 load 10s 110 150 load Surge Capacity 2 rated power for 5 seconds Nominal DC Input Voltage 48Vdc Cold Start Voltage 46 0Vdc Low DC Warning Voltage load 20 44 0Vdc 20 load 50 42 8Vdc load 50 40 4Vdc Low DC Warning Return Voltage load 20 46 0Vdc 20 load 50 44 8Vdc load 50 42 4Vdc Low DC Cut off Voltage load 20 42 0Vdc 20 load 50 40 8Vdc load 50 38 4Vdc High DC Recovery ...

Page 48: ...onstant Voltage Maintenance Floating Current Voltage T1 T1 10 T0 minimum 10mins maximum 8hrs T0 2 43Vdc 2 35Vdc 2 25Vdc Solar Charging Mode MPPT type INVERTER MODEL 3 6KW 5 6KW Rated Power 5000W 6000W Max Charging Current 100A 120A Max PV Array Open Circuit Voltage 500Vdc 450Vdc PV Array MPPT Voltage Range 120Vdc 430Vdc Max Input Current 18A 27A Table 4 General Specifications INVERTER MODEL 3 6KW ...

Page 49: ...is switched on and off repeatedly LCD display and LEDs are flashing Battery is disconnected Check if battery wires are connected well Buzzer beeps continuously and red LED is on Fault code 07 Overload error The inverter is overload 110 and time is up Reduce the connected load by switching off some equipment Fault code 05 Output short circuited Check if wiring is connected well and remove abnormal ...

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