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Eaton Grid-Tied PV Inverter

User Manual

Ver. 1.1

Summary of Contents for PV238

Page 1: ...Eaton Grid Tied PV Inverter User Manual Ver 1 1...

Page 2: ...Grid Tied PV Inverter 15 5 4 Mounting Inverter 18 6 Wiring Box Overview 25 6 1 Hardware Structures 25 6 2 Hardware Functioning 26 6 3 Maximum AC Short Circuit Current 41 6 4 Knockouts for the AC and D...

Page 3: ...tallation within the United States Eaton grid tie PV Inverters must follow National Electrical Code regulation in addition to any other localized regulations For all electrical installation in Canada...

Page 4: ...not avoided IMPORTANT Important indicates specific important useful information that the user should know of the system ESD Protection Risk of electrical shock can occur when qualified service personn...

Page 5: ...be followed WARNING It is necessary that only qualified personnel conduct the installation and operation of the Eaton grid tie PV Inverter Otherwise risk of damage could occur to the unit or connected...

Page 6: ...of parts or the device are made at the manufacturer s discretion Defective parts or malfunction discovered during installation should be presented in a written report for confirmation before applying...

Page 7: ...Connection Unit the connection Interface and a connection to the Public Utility When a PV panel is exposed to sufficient irradiation and connected to an inverter it generates DC power The PV Inverter...

Page 8: ...e with the local electrical distribution network also called the public utility or grid system The Eaton grid tied PV Inverter is designed with a transformer less topography Therefore Eaton grid tied...

Page 9: ...oration Page 9 Ver 1 1 4 3 Dimensions and Weight Measuring Weights Model PV238 PV240 PV250 PV260 PV270 Net Weight lbs 86 86 90 4 101 4 101 4 17 1 in 33 4 in 8 4 in Figure 4 3 Dimension and Weight of P...

Page 10: ...onnect switch that is used to disconnect both the DC input and AC output power from the PV inverter E Night Backlight Button When the inverter has stopped operating at night a night backlight momentar...

Page 11: ...which will light up in green when the feed in DC voltage from PV array has reached to the minimum operating voltage for PV Inverter B Fault LED Indicator It is a red LED indicator will light in red wh...

Page 12: ...unction of display menu To pause the display menu the user can hold the enter control key for more than two seconds until LCD displays a Lock text To release the user can presses the same control key...

Page 13: ...backlight button The night backlight button is located in the right hand side of the unit When the button is pressed during night time it converts the AC power to DC power for the LCD screen while a...

Page 14: ...included in the accessories box for the PV240 model 5 2 Visual check the PV Inverter It is important to check the Eaton grid tied PV Inverter for any visible damage including the LCD screen If there...

Page 15: ...nents that are used for power conversion and the wiring box contains the electrical components that are used as the connection points for DC input voltage and AC output voltage as required by the NEC...

Page 16: ...el into 3800W output After adjusting is finished the name plate should be replaced since the defaulted settings of inverter have been changed The adjusting procedure for down powering a PV240 model gr...

Page 17: ...warning label is used to indicate all important notices that shall be known When you are dealing with the general utility system and DC generator read and follow all notifications from the warning lab...

Page 18: ...n a reduction of output power which is known as derating protection B Select a wall or solid vertical surface which is strong enough to support the inverter WARNING PV Inverter s surface and housing c...

Page 19: ...electing a proper installation position for the PV Inverter is very important The PV Inverter shall be installed in a vertical position In order to avoid heat dissipating issues it is also ensure ther...

Page 20: ...ving or working areas where noise could be a concern E Fix the bracket by using outer mounting holes i A rectangular shaped mounting bracket that shipped with the Eaton grid tied PV Inverter is able t...

Page 21: ...corner screwing points or the central screwing point as illustrated in the figures below To secure the mounting bracket mark 6 outer holes on the wall drive in the 6 mounting anchors then screw in th...

Page 22: ...i Hook up the PV Inverter by aligning the opening of rear side enclosure and place the PV Inverter into each targeted wedge points of the mounting bracket as illustrated below Figure 5 4 7 Install PV...

Page 23: ...with the exposed electrical components under in moist weather is very dangerous which might cause an electrical shock easily In dusty weather electrical components of the wiring box might be damaged...

Page 24: ...igure 5 4 10 Remove the screws of DC AC Wiring Box Screwdriver A M5 hexagon head screwdriver is required for the procedure v Remove the top cover of disconnect box and then find the highlighted locati...

Page 25: ...terminal C Fault Signal Terminal D DC AC Disconnect E 2 fuse holder for AC Output Side Shipped with dummy fuses F Super RS485 Interface Card G 8 fuse holders for DC Input Shipped with dummy fuses H DC...

Page 26: ...f cm When the PV Inverter is connected to the PV module through an external combiner and external fuses are used the configuration of DC input cable can be connected with the bypass terminal block dir...

Page 27: ...n the accessories box System installers or servicer personnel are able to use this female connector to connect with an LED error indicator Figure 6 2 2 indicates the correct configuration for the faul...

Page 28: ...Eaton Corporation Page 28 Ver 1 1 Figure 6 2 3 Failure Operating Mode...

Page 29: ...is recommended to have AC protection fuses installed to the AC side And the AC fuse that can be selected from the recommended list as below table indicates To ensure the rating of the fuses that are u...

Page 30: ...up in yellow color and blink at 2Hz during signal transferring B Power LED indicator It indicates the connectivity of Super 485 card and it will be lit up in green when the inverter is active C TRX LE...

Page 31: ...s port as it may damage your device F Setting DIP switch for Terminating Resistor SW1 DIP switch Figure 6 2 5 Terminating Model Press the pin 1 and pin 2 to set the DIP Switch into on mode for card in...

Page 32: ...grid connected PV inverters are the maximum number that can be connected with an Ez Logger Lite CAUTION Ensure the configuration of the Terminating Resistor is set per section 6 2 An incorrect settin...

Page 33: ...o ensure the pin position of Ethernet cable is configured by the same way as shown in figure 6 2 9 Figure 6 2 8 Connecting Mode of Ethernet cable Figure 6 2 9 Pin Definition of Ethernet cable I Multip...

Page 34: ...sed with twisted wire pairs to establish the connection between each PV Inverter as shown in figure 6 2 11 Figure 6 2 11 Twisted Wires Connecting Model K Connect to Data Logger When wiring the Super 4...

Page 35: ...t opposite pins of Super 485 Receive Pin to Transmit Pin and Transmit Pin to Receive Pin See framed area below Figure 6 2 13 Connecting Mode for RS485 with RS232 IMPORTANT For further instructions a S...

Page 36: ...ts to have eight fuse folders total to the DC side as shown in figure 6 2 14 Figure 6 2 14 Location of DC Fuses Holders IMPORTANT The Eaton grid tied PV Inverter is shipped with a dummy fuse in the fu...

Page 37: ...than 9 70 A Refer to the products information provided from Littlefuse factory we are able to select KLKD008 8A 600VDC DC as the protection fuse for the DC input side IMPORTANT The fuse calculation fo...

Page 38: ...Block It is the terminal block that is used to connect AC cables from the utility system also known as the public grid Each model of the Eaton grid tied PV Inverter requires different sizes of AC cabl...

Page 39: ...lows the user to do different configurations of the PV Inverter in order to let it connect to the different public grid systems using the same inverter The dip switch is located at the right bottom si...

Page 40: ...rface the RS485 interface card should be disabled manually by switching off the SW2 DIP switch as below figure 6 2 16 indicates Therefore it is important to know the status of SW2 DIP switch when serv...

Page 41: ...s for the AC and DC wiring PV Inverters is equipped with different size of knockouts in the wiring box which can be used for the cable configuration of DC side and AC side For the convenience to the i...

Page 42: ...1 Right hand side Combo 1 1 4 in 1 in 3 Combo 3 4 in 1 2 in 1 Open the knockouts for the wiring PV Inverters are able to accept the different configuration of wiring from the different direction with...

Page 43: ...s of inner level Figure 6 4 5 Knocking points of outer level Tools A M4 size slotted screwdriver and hammer are required for the opening procedure of knockouts Inner level area Outer level area Upper...

Page 44: ...oint of outer level IMPORTANT Be sure to follow all instructions to strike knock out the opening hole by the proper procedures Otherwise the opening area of knockout can be easily damaged if improper...

Page 45: ...r of wiring box before this procedure started Figure 7 1 1 Implement a conduit to the wiring box IMPORTANT Conduit is not the part of accessories supplied with the Eaton grid tied PV Inverter Therefor...

Page 46: ...important to use a multi meter to measure the DC input voltage that is generated from the PV modules which must not exceed 600VDC IMPORTANT The Eaton grid tied PV Inverter is designed with a transfor...

Page 47: ...e DC terminal by a screwdriver with the necessary torque v Connecting DC negative polarity cable to the DC negative pole terminal in the wiring box vi Tighten the DC negative polarity cable in the DC...

Page 48: ...gurations of the PV module connection are within the electrical specification IMPORTANT It is important to follow the standard formula for the DC fuse selection if string fuses are planned to be used...

Page 49: ...L1 and L2 location and a ground cables connected to the L2 location as figure in above table indicated For 240V split grid system a split phase configuration can be used by 3 AC wires connected to the...

Page 50: ...r the PV Inverter to be used with the different utility grid systems the utility configuration dip switch embedded within wiring box The configuration setting of this dip switch is described in figure...

Page 51: ...Corner grounded L1 L2 G PV2XX 1 208 Delta Corner grounded ON OFF ON 240 Delta Corner grounded L1 L2 G PV2XX 240 Delta Corner grounded ON ON OFF 480 Y 277 V L1 L2 G PV2XX 277Vac System ON ON ON 240V 1...

Page 52: ...After utility system confirmed to select the correct setting of utility configuration setting DIP switch with the following instructions that mentioned in section 7 2 1 before to start procedures for...

Page 53: ...tion 2 pole position 3 pole in the AC terminal when a 208V grid system applied with the PV inverter Model Terminal block PV240 PV238 PV250 PV260 PV270 Terminal block labeled with 1 2 3 Admissible cond...

Page 54: ...position for the operation Figure 7 2 2 6 indicated the AC cables connection when a 208V grid system applied with the PV inverter L phase cable connected to position 1 pole and Neutral cable connected...

Page 55: ...duits again in order to ensure all conduits are tightly locked and secure for the protection against rain before top cover reinstalled with the wiring box I Last reinstall the top cover of wiring box...

Page 56: ...day and the total energy that is produced since the PV Inverter was installed Date and Hour Menu Display date and time of the current day DC Voltage and DC Current Menu Display the DC voltage and DC...

Page 57: ...will display the output energy for the past 52 weeks E Month Display Menu It is a menu that will display output energy for the past 12 months EXIT Display Menu It is a menu that used to return back to...

Page 58: ...Inverter The Enter key is used to change between different units of time and the direction keys are used to adjust the value of the unit such as year month day hour minute and second IMPORTANT Operati...

Page 59: ...re not working properly FAN1 Lock is the second kind of failure message the user can be retrieved from the LCD when the internal cooling fan is not worked properly FAN2 Lock is the last kind of failur...

Page 60: ...bed how to change the cooling fan therefore please read and understand all procedures before doing so A Switch off the DC AC disconnect switch and wait for three minutes to discharge the stored energy...

Page 61: ...the cooling fan as shown in Figure 9 1 3 Figure 9 1 3 Disconnects the power cables of the cooling fan D Install a new cooling fan by connecting its power cable to PV Inverter Then re tighten the 4 sc...

Page 62: ...not to remove the top cover of wiring box until 3 minutes after DC AC switch is turned off It is necessary to turn off the external DC switch and external AC breaker if these are present Otherwise it...

Page 63: ...the recommended list of brands and rating as discussed in the DC and AC protection chapters in section 6 2 of this manual Figure 9 3 3 Install a new fuse D Install the fuse cover with the new fuse int...

Page 64: ...s 1 Max DC Current 19A 26A 32A 37A Output AC Nominal AC Power 240Vac 277Vac 3800W 4000W 5000W 6000W 7000W Nominal AC Power 208Vac 3800W 3800W 4600W 6000W 7000W Max AC Power 240Vac 277Vac 3800W 4000W...

Page 65: ...A 16 4A 20 5A 24 6A 28 7A THD 3 Power Factor 0 99 Efficiency Peak Efficiency 97 5 97 5 97 5 97 5 97 5 CEC Efficiency 97 97 97 97 97 General Topology Transformer less Protection Degree Type 3R Power Co...

Page 66: ...nterface Regulation IEEE1547 2003 IEEE1547 1 2005 Safety UL1741 2010 CSA C22 2 No 107 1 01 EMC FCC Part 15 Class B IEC 61000 6 2 IEC 61000 6 3 Mechanical Wall Mounted Yes Dimension W x H x D 17 1 x 33...

Page 67: ...grid 2 After Startup Input voltage range is at 80 100V Check Grid Checking xxxS When PV voltage 150V inverter is checking feeding conditions Feeding Grid Normal Inverter is feeding power to the grid F...

Page 68: ...rent on ground conductor is too high V Inverter Fault Messages Operation Condition Messages Descriptions Consistent Fault Consistent Fault The readings of 2 microprocessors are not consistent It could...

Page 69: ...ed contact the system installer immediately Ask the system installer to check if the PV Inverter and PV Modules are properly insulated throughout the solar system B Grid Fault Conditions The grid volt...

Page 70: ...D PV Over Voltage Conditions DC voltage fed by the PV module is higher than permissible range 600Vdc Corrective Actions Disconnected PV modules immediately Check the configuration of the strings for...

Page 71: ...an If any obstacle is found clean it If the top fan is not functioning it may be replaced per the instructions described in section 9 1 If fault remains disconnect the PV Inverter and contact the syst...

Page 72: ...s problem Corrective Actions Restart the PV Inverter If fault remains disconnect the PV Inverter and contact the system installer G SCI failure Conditions Communication between MCU inside is abnormal...

Page 73: ...nverter If fault remains contact the system installer to check the grounding of the PV Inverter If the fault cannot be fixed disconnect the PV Inverter and contact the system installer J Damp Failure...

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