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3KW Off-Grid PV Inverter

User Manual

www.neoenerji.com

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Summary of Contents for 2KW

Page 1: ...3KW Off Grid PV Inverter User Manual w w w n e o e n e r j i c o m ...

Page 2: ... 7 5 2 Connecting to the AC Power Source 7 6 PV Module DC Connection 8 7 Battery Connection 9 8 Load AC Output Connection 10 9 Commissioning 11 10 Operation 12 10 1 Interface 12 10 2 LCD Information Define 12 10 3 Button Definition 14 10 4 Query Menu Operation 14 11 Charging Management 23 12 Maintenance Cleaning 25 13 Trouble Shooting 26 13 1 Warning List 26 13 2 Fault Reference Codes 27 14 Specif...

Page 3: ...ations this hybrid inverter is designed to generate continuous power from PV solar modules solar panels battery and the utility When MPP input voltage of PV modules is within 150 VDC to 500 VDC this inverter is able to generate power to the load and charge battery This inverter is only compatible with PV module types of single crystalline and poly crystalline Do not connect any PV array types othe...

Page 4: ...d by at least two persons CAUTION Authorized service personnel should reduce the risk of electrical shock by disconnecting AC DC and battery power from the inverter before attempting any maintenance or cleaning or working on any circuits connected to the inverter Turning off controls will not reduce this risk Internal capacitors can remain charged for 5 minutes after disconnecting all sources of p...

Page 5: ... shock or injury to persons CAUTION To reduce risk of fire hazard do not cover or obstruct the heat sink CAUTION Do not operate the Inverter if it has received a sharp blow been dropped or otherwise damaged in any way If the Inverter is damaged called for an RMA Return Material Authorization w w w n e o e n e r j i c o m ...

Page 6: ...ide of package Inverter unit Software CD Manual USB cable 3 2 Product Overview 1 PV connectors 2 Grid connectors AC input connection 3 Battery connectors 4 AC output connectors Load connection 5 RS 232 communication port 6 USB communication port 7 Intelligent slot 8 LCD display panel Please check section 10 for detailed LCD operation 9 Operation buttons w w w n e o e n e r j i c o m ...

Page 7: ...air the performance of this inverter The ambient temperature should be between 0 C and 40 C to ensure optimal operation The recommended installation position is to be adhered to vertical For proper operation of this inverter please use appropriate cables for grid connection Select an appropriate mounting location Install the solar inverter in a protected area that is free of excessive dust and has...

Page 8: ... marked locations with four screws 2 Place the unit on the surface and align the mounting holes with the four screws 3 Check if the solar inverter is firmly secured Note Recommended specs for screws w w w n e o e n e r j i c o m ...

Page 9: ...r recommended cable size as below Suggested cable requirement for AC wire Conductor cross section mm2 AWG no 3 35 10 12 5 2 Connecting to the AC Power Source Step 1 Check the AC voltage and frequency with an AC voltmeter It should be the same to VAC value on the product label Step 2 Turn off the circuit breaker Step 3 Remove insulation sleeve 8 mm for three conductors And shorten phase L and neutr...

Page 10: ...tion sleeve 10 mm for positive and negative conductors Refer to chart 3 Step 4 Check correct polarity of connection cable from PV modules and PV input connectors Then connect positive pole of connection cable to positive pole of PV input connector Connect negative pole of connection cable to negative pole of PV input connector Refer to Chart 4 Step 5 Make sure the wires are securely connected CAUT...

Page 11: ...verter is 48VDC Step 2 Use two battery cables Remove insulation sleeve 12 mm and insert conductor into cable ring terminal Refer to chart 5 Step 3 Following battery polarity guide printed near the battery terminal Place the external battery cable ring terminal over the battery terminal Refer to Chart 6 RED cable to the positive terminal BLACK cable to the negative terminal Step 4 Make sure the wir...

Page 12: ...efer to chart 7 Step 2 Connect wires according to polarities indicated on terminal block Be sure to connect PE protective conductor first Refer to Chart 8 L LINE brown or black Ground yellow green N Neutral blue Step 3 Make sure the wires are securely connected CAUTION It s only allowed to connect load to AC Output Connector Do NOT connect the utility to AC Output Connector CAUTION This inverter i...

Page 13: ...nverter status commissioning has been successfully After pressing ON button for 1 second when the utility is detected this inverter will start to supply power to the loads If no utility exists simply press ON button for 3 seconds Then this inverter will start to supply power to the loads If red LED lights up or warning fault indicator appears in LCD an error has occurred to this inverter Please in...

Page 14: ...this unit via software every one month For the detailed calibration please check the user manual of bundled software 10 2 LCD Information Define Display Function Indicates AC input voltage or frequency Vac voltage Hz frequency Indicates AC output power voltage frequency or load percentage KW power Vac Voltage Hz frequency Load percentage w w w n e o e n e r j i c o m ...

Page 15: ...ity Icon flashing indicates utility voltage or frequency is out of range Indicates battery condition And the lattice of the icon indicates battery capacity Icon flashing indicates battery is not connected Icon flashing indicates the battery voltage is too low Indicates AC output for loads is enabled and inverter is providing power to the connected loads Indicates AC output for loads is enabled but...

Page 16: ...ery menu press this button to jump to next selection or decrease value Mute alarm in standby mode or battery mode NOTE If backlight shuts off you may activate it by pressing any button When an error occurs the buzzer will continuously sound You may press any button to mute it 10 4 Query Menu Operation The display shows current contents that have been set The displayed contents can be changed in qu...

Page 17: ...e Input voltage or frequency of AC input Procedure 1 Enter Up Down Up Down Enter Enter 2 3 4 5 Frequency voltage power or percentage of AC output Procedure 1 Enter Up Down Up Down Enter Enter 2 3 4 5 w w w n e o e n e r j i c o m ...

Page 18: ... Input voltage or power of PV input Procedure 1 Enter Up Down Up Down Enter Enter 2 3 4 5 Battery voltage or percentage Procedure 1 Enter Up Down Up Down Enter Enter 2 3 4 5 w w w n e o e n e r j i c o m ...

Page 19: ...17 Date and time Procedure 1 Enter Up Down Up Down Enter Enter 2 3 4 5 Today or total energy generated Procedure Enter Up Down Up Down Enter Enter 3 4 w w w n e o e n e r j i c o m ...

Page 20: ...nter Enter Up Down Up Down Up Down Enter Esc Up Down Returns to main menu 6 Sets year Sets month Sets day LCD Display Energy generation display of selected month Procedure 1 Enter Up Down Up Down Enter 2 3 4 5 Enter Flashes Flashes Enter Enter Up Down Up Down Enter Esc Up Down Returns to main menu 6 Sets year Sets month LCD Display w w w n e o e n e r j i c o m ...

Page 21: ...5 Operation Mode Display Inverter mode This inverter is working with DC INV operation and not connecting to the grid LCD Display Description This inverter is activated to generate power to the loads via AC output connector At the same time the utility is out of range PV power is sufficient to charge battery and provide power to the connected loads w w w n e o e n e r j i c o m ...

Page 22: ...ery power is available to provide power to connected loads This inverter is activated to generate power to the loads via AC output connector At the same time the utility is out of range No battery is connected or battery is not available to use at this moment Only PV power is available to provide power to connected loads Bypass mode The inverter is working without DC INV operation and connecting t...

Page 23: ...le to use at this moment Only utility is available to provide power to connected loads Standby mode The inverter is working without DC INV operation and load connected LCD Display Description The utility is out of range This inverter is disabled on AC power output or even AC power output is enabled but an error occurs on AC output Only PV power is sufficient to charge battery This inverter is disa...

Page 24: ...22 This inverter is disabled to generate power to the loads via AC output connector PV power and the utility are not detected or available at this moment w w w n e o e n e r j i c o m ...

Page 25: ...tection 59 0 Vdc Charging process based on default setting 3 stages First max charging voltage increases to 56V Second charging voltage will maintain at 56V until charging current is down to 5 Amp Third go to floating charging at 54V Bulk Floating Absorption time U time I Bulk Voltage Float Voltage This inverter can connect to battery types of Sealed lead acid battery Vented battery Gel battery Ni...

Page 26: ...h x 0 2 For example if you are using 125 Ah battery then floating charging current is 125 x 0 2 25 A Please use at least 25Ah battery because the settable minimum value of maximum charging current is 5Ah If using Lithium iron gel vented or Nicd battery please consult with installer for the details Below is setting screen from software w w w n e o e n e r j i c o m ...

Page 27: ...m at regular intervals Ensure all connectors of this inverter are cleaned all the time Before cleaning this inverter be sure to turn off all the breakers AC breaker battery breaker and PV DC breaker Clean this inverter during the cool time of the day whenever it is visibly dirty Periodically inspect the system to make sure that all wires and supports are securely fastened in place w w w n e o e n ...

Page 28: ...n Power grid voltage exceeds the upper threshold The grid voltage has exceeded the highest limit Power grid voltage falls below the lower threshold The grid voltage is beyond the lowest limit Power grid frequency exceeds the upper threshold The grid frequency has exceeded the highest limit Power grid frequency falls below the lower threshold The grid frequency is beyond the lowest limit Power grid...

Page 29: ...ill automatically connect to the grid 3 If the error message still remains please contact your installer 02 DC bus voltage falls below the lower threshold 03 DC bust voltage soft start is time out 04 Inverter soft start is time out 05 An Inverter overcurrent event is detected 07 An relay failure event is detected 08 DC component in the output current exceeds the upper threshold 11 Over current on ...

Page 30: ...rrent exceeds the allowable range 1 The ground voltage is too high 2 Please disconnect AC breaker first and then DC breaker Check if grounding is connected properly after LCD screen completely shuts down 3 If grounding is correctly connected turn on DC brearker After it displays No Utility in LCD screen turn on AC breaker After 300 seconds the system will automatically connect to the grid 4 If the...

Page 31: ... message remains please contact your installer 17 Communication with the main and secondary controllers is interrupted 20 Discharge circuit fault 21 Soft start in battery discharge fails 22 Charging voltage is too high 1 Check if the connection between battery and inverter is well 2 Make sure battery condition is ok 3 Then restart the inverter 4 If error message remains please contact your install...

Page 32: ...Disconnect AC circuit breaker first Then disconnect DC circuit breaker and then disconect the loads 3 Please check if load circuit is ok After removing the error turn on the PV DC breaker and battery breaker 4 Turn on the inverter 5 If error message remains please contact your installer 27 Fan fault 1 Please check if fans are runing ok 2 If fans are runing ok please shut down inverter first and th...

Page 33: ...Y MODE OUTPUT AC Output Voltage 101 110 VAC 120 127 VAC 208 220 VAC 230 240 VAC Output Frequency 50 60Hz auto sensing Output Waveform Pure Sine Wave THDv 3 Linear Load Power Factor 0 99 Efficiency DC to AC 90 92 Overload Capability 110 1min 150 30 sec 200 immediately BATTERY CHARGER Nominal DC Voltage 48 VDC Maximum Charging Current 25 A PHYSICAL Dimension D X W X H mm 420 x 415 x 170 Net Weight k...

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