Chint 4kw to 7kw Installation Manual
Contents
1. B Ensure the AC utility system is compatible with CPS grid tied PV Inverter Confirm the specific kind of utility system being used and then select the corresponding setting of utility configuration DIP switch as per the instructions in Table 7 2 1 before the procedures for AC connection C Use a multi meter to measure the AC voltage from the combiner box for AC utility It is important to confirm the configuration of AC utility matches with that of the utility configuration DIP switch D Refer to the information in the table 310 16 of the National Electrical Code NEC and select the proper size of AC cables for the Position 1 pole Position 2 pole Position 3 pole Refer to the column 2 of table 18 1 in the UL1741 electrical code and select the proper size of ground cable for the AC terminal Copyright CPS America Co Ltd Page 49 CHNT POWER The following table shows the information of cable size and torque values that should be used in the position 1 pole position 2 pole position 3 pole in the AC terminal when a 208V grid system is applied with the PV inverter Table 7 2 2 AC Cables Size Inverter Model CPS CPS CPS CPS labeled with 90 C 194 F Copper 1 2 3 15 6 Ibf in 18 Kgf cm 33 1 Ibf in 38 1 Kgf cm i Admissible Terminal block 10AWG labeled with conductor size G 15 6 Ibf in 18 Kgf cm 33 1 Ibf in 38 1 Kgf cm IMPORTANT The selection for the AC cable size and required torq2. Ltd Page 21 CHNT POWER WARNING It is Important to ensure the drilling location is not located on any electric wiring within the wall F Mountthe PV Inverter into the mounting bracket as illustrated below 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 Inverter into mounting bracket IMPORTANT Check the mounting bracket again before the PV Inverter is hung on the bracket It is recommended to have least 2 service personnel for this procedure due to the weight of unit Page 22 Copyright CPS America Co Ltd CHNT POWER A li Secure the edge point of mounting bracket In order to avoid the wiring box swaying due to weather the security screws for the wiring box must be tightening There will be two pieces of the M4 size screws found within accessories box The tightening location of mounting bracket was indicated in figure 5 4 8 Follow the below instructions in order to complete the tightening procedures Figure 5 4 8 The edge point of mounting bracket WARNING The wiring box shall not be opened under dusty or moist weather Working with the exposed electrical components under in moist weather is very dangerous which might cause an electric shock easily In dusty weather electrical components of the wiring box might be damaged if there is heav
3. Operation Condition Instantaneous Output Pac The real time output power in xxxx xW Power XXXX XW Cumulated energy Energy Total energy that has been fed to the grid since information XXXXxxkWh inverter was installed l Etoday Today s energy information Daily energy that has been fed to the grid xxx XKWh Grid Voltage Grid voltage in xxx x VAC Frequency Grid Frequency Grid frequency in xx xHz XX XHZ Feeding Current lac xx xA Feeding current amount in xx xA Page 64 Copyright CPS America Co Ltd CHNT POWER PV Array Voltage Input voltage from PV array xxx xVDC PV Array Current Idc2xx xA Input current from PV array xx xA Ill System Information Messages Operation Condition CPS Model Display Inverter Model SCExKTL O US LCD Display Lock Lock Hold the present display message Waiting for reconnecting Reconnect in The time for reconnecting to the grid to the grid xxx S IV System Fault Messages Operation Condition Isolation Ground fault of the PV modules or failure of Isolation Failure Fault surge voltage protection Measured data from Grid is beyond the Grid Failure Grid Fault ol specification voltage amp frequency No Utility No Utility Utility is not available Input Voltage PV over Input voltage higher than the 600V too High voltage Ground Ground Fault ERR Leakage current on ground conductor is too high au V Inverter Fault Messages Operation Condition The rea
4. Press Enter Adjusting Press A Day Press Enter Press Enter Press Enter Adjusting m n m Adjusting Minutes zi Adjusting Hours Seconds VAN Press A Press A Y V Press Figure 8 2 2 Date and Hour display menu IMPORTANT The Enter button is the control button that is used to enter subdirectory for the configurations and the direction control buttons are used to rotate between each menu Date Adjusting Menu It is the date and hour setting menu that is used to change date and time of the PV Inverter The Enter button is used to change between different units of time and the direction buttons are used to adjust the value of the unit such as year month day hour minute and second IMPORTANT Operational data will be recorded by the date and hour Therefore it is important to ensure the time of inverter is adjusted correctly Copyright CPS America Co Ltd Page 55 CHNT POWER d 9 Maintenance 9 1 Replace the external cooling fan For CPS SCE4KTL O US and CPS SCE5KTL O US models there is no cooling fan designed for the external housing but an internal fan designed in PV inverter for the thermal management Therefore FAN Lock is the only failures message that user will receive from the LCD if the operation of internal cooling fan has failed If this situation happens please contact our after sales service center for further instructions For CPS SCE6KTL O US and CPS SCE7KTL O U
5. protection fuses should be selected based on the amount of solar modules connected in the PV system Copyright CPS America Co Ltd Page 33 CHNT POWER d The criterion of fuse selection can be calculated by a standard formula in order to help the installer or service personnel to select the correct rating of fuse The standard formula for DC Fuse Selection Nominal Voltage of fuse must be 600Vpc Rating and the fuse should be selected between 1 56 x Isc lt ly Assume the maximum short circuit current Isc of the solar module used is 4 85A The rating of the selected fuse must have a nominal current greater than 1 25 times but less than 1 6 times the short circuit current as 1 56 x Isc lt In Calculated by Standard Formula A 4 85Ax 1 56 7 56A B Implemented the above result within 7 56 x Isc lt IN C The calculation result will be 7 56A lt In That means installer must to select a fuse rating that is greater than 7 56 A but must lesser than 9 70 A Refer to the products information provided from Littelfuse factory we are able to select KLKD008 8A 600Vpc DC as the protection fuse for the DC input side IMPORTANT The fuse calculation for the fuse selection is referring to the requirements information that had been indicated within the National Electrical Code NEC ANSI NFPA 70 To ensure trouble free fuse protection Eaton recommends using fuses that have been tested by Eaton The specifications for fu
6. range system Firmware setting 240V j 215 260V value system This is the DC voltage range that inverter can feed power to the grid The DC resistance requirement for positive or negative terminal to chassis ground Regulation range 183 229Vac Regulation range 211 264Vac Copyright CPS America Co Ltd Page 61 DC Disconnection Type Output AC Nominal AC power 240Vac amp 1 2 3 4 CHNT POWER CPS CPS CPS CPS SCE4KTL O US SCE5KTL O US SCE6KTL O US SCE7KTL O US 277V 248 300V ee Rated Rated Output Frequency Frequency OH SSN Output Frequency Range 59 3 60 5Hz Current THD 396 AC Disconnection Type Switch Nominal AC current 208Vac 18 3A 22 1A 28 9A 33 7A Nominal AC current 240Vac 16 7 A 20 8 A 29 2A Nominal AC current 277Vac 14 4A 18 1A 21 7A 25 3A Max AC current 208Vac 18 5A 22 5A 30A 35A system Max AC current 240Vac 18 5A 22 5A 28 5A 33 2A system Max AC current 277Vac 16 4A 20 5A 24 6A 28 7A system System Topology Transformerless Max Efficiency 97 5 CEC efficiency 97 lt 7W lt 0 2W I Stand by Night Consumption Environment Protection Degree NEMA 3R Cooling Forced air cooling Operating Humidity 0 95 non condensing Operating Altitude 6562ft 2000m without derating Operating temperature range 25 50 C Regulation range 244 305Vac Regulation range 59 3 60 5 Hz The ma
7. 4 branch circuit rated Negative and Positive fused inputs Performance Monitoring Package LCD display with side pushbutton for nighttime monitoring NEMA 3R enclosure Meets UL1741 standard Page 6 Copyright CPS America Co Ltd CHNT POWER 4 Product Overview 4 1 Introduction of Grid tied PV system The grid tied PV system is mainly composed of four parts PV modules DC distribution unit grid tied PV inverter and AC distribution unit When the PV modules are exposed to sufficient irradiation they will generate DC power First the DC will be fed to the PV Inverter via DC distribution unit Then the Inverter converts the DC to AC and feeds AC to the Public Grid via the AC distribution unit The AC power can be used directly by the local load or it can be sold to your energy supplier The following figure shows the general picture of a grid tied PV System VOOR EA SS DC Power Inverter AC Power Figure 4 1 1 General picture of grid tied PV System Copyright CPS America Co Ltd Page 7 CHNT POWER ie 4 2 Introduction of CPS Grid tied PV Inverter CPS grid tied PV Inverter converts direct current DC power generated by a PV panel into alternating current AC which is compatible with the local electric distribution network also called the public grid The CPS grid tied PV Inverter is designed with a transformer less topology Therefore CPS grid tied PV Inverters will not be suitable with
8. Co Ltd CHNT POWER 4 5 LED Indicators CPS grid tied PV Inverter has three built in LED indicators which will provide information of the operational status Q Power On Q Communication Figure 4 5 1 LED Indicators A Power On LED Indicator It is a green LED indicator which will light up in green when the feed in DC voltage from PV array reaches the minimum operating voltage for the PV Inverter B Fault LED Indicator It is a red LED indicator that lights in red when the PV Inverter has a fault during startup or operating period C Communication LED Indicator It is a Green LED indicator that lights and flashes in green when there is a communication device connected and working with PV inverter via the RS232 or Modbus interface Copyright CPS America Co Ltd Page 11 CHNT POWER di 4 6 Control Buttons and LCD Displays CPS grid tied PV Inverters are equipped with three control buttons which could be used to switch between display menus Q Power On O Fault Q Communication O 9 Figure 4 6 1 Control buttons and LCD displays A Up Control Button The up control button is used to advance the display menu or move the cursor up B Enter Control Button The enter control button is used to configure the settings such as parameters or is used to activate the lock function of display menu To pause the display menu the user can hold the enter control button for more than two seconds unti
9. INSTALLATION and CONNECTION CAUTION The PCB SERMB is an accessory for the PV Inverter series The installation has to be done with the unit OFF Don t install the PCB is you see damaged on it Before installing the PCB it is necessary to configure the dip switch as indicate on following page the factory setting are mode 1 Baud Rate 9600 Connect the RS485 RS422 line to the connector on front panel as show on Fig 1 It is suggested to use twisted cable section 0 22mm2 AWG24 1 If the RS485 is connected one PV Inverter only or if the PV Inverter is the last in the serial connection it is necessary to set the SW3 4 to ON position If in the RS422 is connected one PV Inverter only or if the PV Inverter is the last in the serial connection it is necessary to set both SW3 3 and SW3 4 to ON position Start the PV Inverter and verify the PCB RS485 connection RS485 A RS485 B LI N eue oa 87654321 RS422 connection RS422 T R 422 R RS422 T RS422 R 38 ttt e B 87654321 B Figure 6 2 4 RS 485 RS422 connections The GND is available at Port 6 and Port 8 which refer to the internal GND system Page 30 Copyright CPS America Co Ltd CHNT POWER A Il CONFIGURATION Onthe PCB are presented 2 dip switch blocks for the configuration ID Function Dip Description SW2 _ S Slave Address DIP1 5 Modbus Slave number 1 31 2 Baud Rate setting u 1D F
10. PV modules that are required to have the negative or positive polarity of PV modules connected to the ground For such application please contact the supplier before proceeding Page 8 Copyright CPS America Co Ltd CHNT POWER 4 3 Dimensions and Weight 17 09in 8 39in 434mm 213mm 33 46in 850mm dirszonset HEC 200 Compliant Figure 4 3 1 Dimensions of PV Inverter Table 4 3 1 Product weight in the package CPS CPS CPS CPS Inverter Model SCE4KTL O US SCE5KTL O US SCE6KTL O US SCE7KTL O US Net Weight Ibs 86 904 104 104 Copyright CPS America Co Ltd Page 9 CHNT POWER 4 4 Control and Display Overview n HEG 2008 Compliant Figure 4 4 1 Overview of CPS PV Inverter A LCD Display LCD screen displays all measured values and parameters B LED Indicators There are three indicators used to indicate the operating status C Control Buttons They are three control buttons available to switch between each display menu and configure the settings for the LCD D DC AC Disconnect Switch It is a built in disconnect switch that is used to disconnect both the DC input and AC output power to and from the PV inverter E Hand Grip Area It is a carrying area that is used to lift up the PV Inverter For the lifting two people are required due to the size and weight of the Inverter Page 10 Copyright CPS America
11. a new fuse into the fuse cover Ensure the fuse is selected from the recommended list of brands and rating as described 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 into the correct fuse holder as shown in figure 9 3 4 It is important to ensure the fuse cover is inserted tightly into fuse holder in order to complete the fuse replacement and re installation procedure Figure 9 3 4 Install the fuse cover Page 60 Copyright CPS America Co Ltd CHNT POWER a 10 Specifications CPS CPS CPS CPS SCEAKTL O US SCE5KTL O US SCE6KTL O US SCE7KTL O US North America 100 515 V 100 515 V 100 515 V 100 515V Market Input DC Max PV Power Nominal DC Input Power Nominal DC voltage Max PV open voltage Start up DC Input Voltage Operating DC Input Voltage Range MPPT Voltage Range Number of MPP tracker s Number of DC Input Pairs Max DC current Max Input Current per String DC insulation resistance ho ho gt ho gt ho gt Switch 4000W 5000W 6000W 7000W 2 Nac Nominal AC power 208Vac 3800W 4600W 6000W 7000W Max AC power 240Vac amp 4000W 5000W 6000W 7000W 277Nac Max AC power 208Vac 3800W 4600W 6000W 7000W Grid Connection Type Single phase 240V Split phase Refer to 5 4 Rated Output Voltage 240V Split phase Operational voltage 208V
12. ffault remains disconnect the PV Inverter and contact the inverter installer Copyright CPS America Co Ltd Page 69 CHNT POWER d I GFCI Failure Conditions The GFCI detection circuit is abnormal Corrective Actions v Check the grounding cable of the PV Inverter v Restart the PV Inverter v f fault remains contact the inverter installer to check the grounding of the PV Inverter v f the fault remains disconnect the PV Inverter and contact the inverter installer J Damp Fail Condition The resistance stick is working outside the permissible range Corrective Actions v Restart the PV Inverter v ffault remains disconnect the PV Inverter and contact the inverter installer Page 70 Copyright CPS America Co Ltd CHNT POWER A 12 Power Curve Allowable Output Power vs String Voltage as shown below CPS SCE4KTL O US 100 225 500 80 s 2 60 e O a 5 40 O 20 0 0 100 200 300 400 500 600 Input Voltage V CPS SCESKTL 0 US CPS SCE6KTL O US CPS SCE7KTL O US 100 200 500 80 E 2 3 60 a amp 40 O 20 0 0 100 200 300 400 500 600 Input Voltage V Figure 12 1 1 Line loss vs cable length Copyright CPS America Co Ltd Page 71 CHNT POWER a Appendix Configuration of Wiring Box BY PASS TB DC AC SWITH i A MOV PV BY PASS TB S Solar GND E Solar 1 T EN E o amp K So 2 f D lar Solar I2 GND E a E A
13. firmly in proper location as described in figure 7 1 5 E Figure 7 1 5 DC Input Terminal IMPORTANT The size selection of DC cables should be referred to the cable size requirement in the National Electrical Code NEC ANSI NFPA 70 that can be used with the PV inverter please beware of this Page 44 Copyright CPS America Co Ltd WARNING Do not mix the connection with the wrong polarity This may cause damage to the PV Inverter therefore it is very important to do the polarity check before connecting the DC power to the wiring box Do not start up the PV Inverter while the fuse cover is removed The dummy fuses must be kept within fuse holder if there is no protection fuses planned to be installed CAUTION Each port terminal of the multi string DC input terminal is only able to be connected with a maximum 20A input current It is important to ensure the correct connections of the PV modules according to the electrical specifications IMPORTANT It is important to follow the standard formula for the DC fuse selection if string fuses are planned to be used Insulation Protection An insulation glove should be worn during the service period D When the DC power is delivered from an external combiner to the wiring box of the PV Inverter use a multi meter to measure the DC voltage on the connected polarity port of the DC input terminal in order to ensure the DC input power is applied within the electrical specific
14. measure whether the AC voltage of PV system is normal and the connection is correct I Check the condition of the conduits again to ensure all conduits are tightly locked and sealed for the protection against rain and dust before the top cover is reinstalled on the wiring box Copyright CPS America Co Ltd Page 51 CHNT POWER J Lastly reinstall the top cover of wiring box by tightening 2 M4 and 4 M5 screws as shown below Figure 7 2 Reinstall the top cover of wiring box Page 52 Copyright CPS America Co Ltd CHNT POWER A 8 LCD Display and Function Structure 8 1 First Level Display Menu Operation Status Output Power Press A i M Etoday Energy Press A l N Date Hour Press A l M DC Input Voltage DC Input Current Press Stl V AC Output Voltage AC Output Current Press A i V Frequency Output Power Press A i V Nominal Power Grid System Model name Version Press Definition of Level 1 display menu Operating and Output power Status Display the operation status and the instant output power of the unit Etoday and Energy Menu Display the output energy that is produced on the current 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 current from the PV array AC Voltage and AC Current Menu Display
15. tools to strike knock at the certain points repeatedly in order to open a hole for wiring as shown in figure 6 4 7 CN Figure 6 4 7 Knocking point of outer level 1st Step Use tools to target left side strike point and knock it 2nd Step X Use tools to target right side strike point and knock it Last Step Repeat the 1st and 2nd steps until the hole of outer level is opened 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 tools are used or any improper procedures are done for the opening please beware Copyright CPS America Co Ltd Page 41 CHNT POWER d 7 Connecting the PV Inverter 7 1 DC Wire Connections Since the wiring box has been opened during mounting procedures use the necessary tools to knock out an opening hole in the desired location on the wiring box for AC cables and insert a conduit as shown in figure 7 1 1 Second remove the top cover of wiring box before this procedure started Please refer to the configuration diagram in Appendix and ensure a correct connection for the DC side of PV system Figure 7 1 1 Insert a conduit to the wiring box IMPORTANT Conduit is not a part of accessories supplied with the CPS grid tied PV Inverter To ensure the protection class of the inverter it is IMportant to use the water proof conduits A Before p
16. 4 5 LED Indicators mmn 11 4 6 Control Buttons and LCD Displays 12 5 Installation of PV Inverter mr rrr nnn rn MTM T ML 13 Del ODEN INC PaCK e 13 5 2 Visually check the PV Inverter 14 5 3 Identify the PV Inverter mM 15 o 4 WIOUAT the PY IHVOL Ie eeseseseseueeeasscneceun suena evan a 17 6 Wiring BOX Overview nmm nizza eee zena eee MTM 26 6 Viral Ware otuctUfeS secseseesendececocedeneneeiiumenciseenetispeenequusnediceduep editur 26 b e TIOtOWATe FUNCHONINO arenaria TA 26 6 3 Maximum AC Short Circuit Current 38 6 4 Knockouts for the AC and DC wiring 38 7 Connecting the PV Inverter m 2 mummmumumuumummmummz 2 42 GDO WIE GOnnecuions 2 nat aan nina 42 Toe PAC Wire OIE CLIO I cess ca ace ee eee pe eae nase 46 8 LCD Display and Function Structure nnennnnen 93 Scr First Eevel Display M LIeeee sees ceeeeeneepacuenecon epe en ene odence eae eee sed seeereseebeceaes 93 6 2 SeCOnd Level Display MEnu s s estsene tattoo 54 8 2 1 Daily Weekly and Monthly Energy D
17. CONT POWER CPS SCE Series Grid tied PV Inverter CPS SCE4 5 6 7KTL O US Installation and Operation Manual Version 1 1 POWER CHINT POWER SYSTEMS AMERICA CO LTD Address 700 International Parkway Web www chintpower com na ouite 102 Richardson Texas Email americasales chintpower com Zip Code 75081 Service Hotline 855 584 7168 e SHANGHAI CHINT POWER SYSTEMS AMERICA CO LTD All rights reserved Specifications and designs included in this manual are subject to change without notice CHINT POWER 2013 06 MKT CHNT POWER ie Contents Before You Start menn rere rernm nn n 1 Important Safety Notification em emere r nnn nennen nennen 2 1 Introduction mm eee eee 4 2 Limited Warranty eem eere nnne nnn z nen iene nenio nen ezeneene 9 3 Features Overview ee enr r nnnm nn nnm nennen nen 6 4 Product Overview mmm rere rennen nnnm nnnm 7 4 1 Introduction of Grid tied PV system 7 4 2 Introduction of CPS Grid tied PV Inverter 8 4 0 Dimensions ano Weigni s2 s s3s0c scssoscrrssseni scrsesczrsiolocozclore rr alescua 9 4 4 Control and Display Overview 10
18. J mi MC N UN N l d Inverter 2 Page 72 Copyright CPS America Co Ltd
19. S models there is an external cooling fan and the internal cooling fan designed in PV inverter for the thermal management The external fan is located at the top of PV Inverter as shown in figure 9 1 2 When the cooling fan is not working properly user will receive three different kinds of failure messages from the LCD 1 FAN Lock is the first kind of failure message that will be shown on the LCD when both external and internal cooling fans are not working properly 2 FAN1 Lock is the second kind of failure message when the external cooling fan is not working properly 3 FAN2 Lock is the third kind of failure message when the internal cooling fan is not worked properly If FAN1 Lock is indicated on the CPS SCE6KTL O US and CPS SCE7KTL O US models please check whether there is any obstacle stopping blocking the external fan When no obstacle is found users can follow the procedures to change the external cooling fan to see whether the cooling fan problem can be fixed by changing a new cooling fan If the FAN Lock or FAN2 Lock is indicated on the CPS SCE6KTL O US and CPS SCE7KTL O US models please contact our after sales service center for further instructions since the internal cooling fan is not working properly IMPORTANT If the FAN2 LOCK is indicated on the CPS SCE6KTL O US and CPS SCE7KTL O US models or FAN LOCK on the CPS SCEAKTL O US and CPS SCEBKTL O US models this means the interi
20. act the inverter installer C Over Temperature Conditions The internal temperature is higher than normal value Corrective Actions v Disconnect PV Inverter for a period of time gt 30 minutes and then restart the PV Inverter v ffault remains disconnect the PV Inverter and contact the inverter installer Select a new location for the installation if it is necessary D Relay Fault Fault Conditions The relay between inverter and grid is not functioning Corrective Actions v Restart the PV Inverter v f fault remains disconnect the PV Inverter and contact the inverter installer Page 68 Copyright CPS America Co Ltd CHNT POWER d E DC Inj high Fault Conditions Output DC current injection is too high Corrective Actions v Check the connection of the DC Input v Restartthe PV Inverter v ffault remains disconnect the PV Inverter and contact the inverter installer F EEPROM Failures Conditions EEPROM inside has data access problem Corrective Actions v Restart the PV Inverter v ffault remains disconnect the PV Inverter and contact the inverter installer G SCI failure v Conditions Communication between the inside MCU is abnormal Corrective Actions v Restart the PV Inverter v If fault remains disconnect the PV Inverter and contact the inverter installer H High DC bus v Conditions The DC BUS inside is higher than expected Corrective Actions v Restart the PV Inverter v
21. act the system installer D PV Over Voltage Conditions DC voltage fed by the PV module is higher than permissible range 600Vac Corrective Actions v Disconnected PV modules immediately v Check the configuration of the strings for the PV modules and ensure the maximum input voltage is lower than 600V E Ground Fault Conditions Leakage current on ground conductor is too high Corrective Actions v Check the AC Cables Connections especially the grounding cables Ensure all the cables are connected properly v Restart the PV Inverter v f fault remains disconnect the PV Inverter and contact the system installer Copyright CPS America Co Ltd Page 67 CHNT POWER d Trouble Shooting Actions for Inverter Faults Messages A Consistent Fault Conditions The readings between two microprocessors of control board are not consistent It could be caused by the DSP and or other circuits not functioning properly Corrective Actions v Restart the PV Inverter v ffault remains disconnect the PV Inverter and contact the inverter installer B FAN1 Lock CPS SCE6KTL O US and CPS SCE7KTL O US Conditions The external cooling fan of PV Inverter is not working properly Corrective Actions v Visually check the front cooling fan and remove the obstacle if any v If the top fan is not functioning it may be replaced as per the instructions described in section 9 1 v ffault remains disconnect the PV Inverter and cont
22. any objects on the top of PV Inverter Moreover PV Inverter may make noise during operation As a consideration install the PV Inverter away from living or working areas where noise could be a concern E Fixthe bracket by using outer mounting holes I A rectangular shaped mounting bracket that shipped with the PV Inverter is able to be used with all types of walls such as stone wall brick wall or wooden wall but it is more important to ensure the wall that is selected will be able handle with the weight of PV Inverter specifically the installations that are wooden walls Figure 5 4 3 described the required dimension of drilling locations 14 17 inches 360mm 3 94 inches 100mm 1 97 inches 50mm 1 24 39 inches 619 6mm 3 54 inches 90mm Figure 5 4 4 Dimension of Drilling Point for the Wall Page 20 Copyright CPS America Co Ltd CHNT POWER There are 2 types of handling modes to install the mounting bracket on a wall The user can use the different screwing points as appropriate The 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 the 6 M4 screws to each screwing point as illustrated below lt P K hi Figure 5 4 5 Corner screwing fixing mode Se w Jo Figure 5 4 6 Central Point Fixing Mode Copyright CPS America Co
23. ation of PV inverter E At last turn off the circuit breaker for the PV strings of DC input side and then continue with the procedures in next section in order to complete the connection for the AC side Copyright CPS America Co Ltd Page 45 CHNT POWER d 7 2 AC Wire Connections Configuration of inverter with different Utility Grid Systems CPS grid tied PV Inverter can be installed with the following type of utility grid systems by 2 wire or 3 wire AC cables and with a ground cables as illustrated in the table below GRID STANDARD q sal N loi l 3PH A SPLIT PHASE 3PH Y 3PH Y Crema T2 s o v 2 e 32 T8 T2 3 wire ue e u e N e u n o uke n o Figure 7 2 1 Utility grid systems Acceptable PV Systems for CPS grid tied PV Inverter For 208V and 240V 3 phase delta grid system a 3 phase delta configuration can be used by the 2 AC wires connected to the Point of Common Coupling PCC L1 and L2 location and a ground cable connected to the L2 location as shown in the above table For 240V split grid system a split phase configuration can be used by 3 AC wires connected to the PCC s L1 L2 and N location and a ground cables connected to the N location as shown in the above table For 277V 3 phase Y grid system a wye type configuration can be used by 2 AC wires connected to L1 and N locations with a ground cables connected to the N location as shown in the above table For 208Y 120V 3
24. can be done via RS 232 interface All PV Inverters are integrated with a DB9 socket for the RS232 interface as a built in interface in the wiring box The pin assignment of DB9 socket is shown in the table below Pin Signal Assignment i fn O 2 m 5 3 RD awe 5 common e e e fue Pe e Figure 6 2 7 RS232 Interface Pin Assignment IMPORTANT The RS232 interface and Modbus card share the same communication port thus they are not able to work together at the same time Before using the RS232 interface please remember to remove the Modbus card Copyright CPS America Co Ltd Page 37 CHNT POWER d 6 3 Maximum AC Short Circuit Current According to requirements for safety protection PV Inverters shall have a short circuit test on the AC output circuit The following table describes the test result of the AC Short Circuit Current that the PV Inverter had Table 6 3 1 AC Short Circuit Current Maximum Short Circuit Current and Duration Period Note Do not exceed the Irms value for choosing the output breaker 6 4 Knockouts 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 of the installer or system integrator knockouts can be utilized in four different directions and there are two different sizes of the knockouts available to be selected as shown in fi
25. ce in the wiring box as indicated in the figure below Through installing a Modbus card to use this slot please remove the cover of the wiring box following Please refer to page 24 insert the card into the slot reinstalled the cover of the wiring box Please refer to page 52 For further information please contact with your dealer Piste reti za eo DERE gt Ld Communication Slot for Modbus Figure 6 2 2 Connection slot for Modbus After installation of Modbus card user can link PC with Inverters and monitor their real time operation status remotely When wiring Modbus card from Inverter to Modbus RS485 to RS232 Converter we connect opposite pins of Modbus which means Receive Pin to Transmit Pin and Transmit Pin to Receive Pin See framed area below Remote Computer DC In ACOut DC In AC Out DC In ACOut RS232 or other media Modbus RS485 Modbus RS485 Ne welll Modbus RS485 Modbus RS485 ee _rr ALL Re lS Inverter to inverter correct pin configuration Inverter to logger correct pin configuration Pin T Transmit to T Transmit Pin T Transmit to R Receive Pin T Transmit to T Transmit Pin T Transmit to R Receive Pin R Receive to R Receive Pin R Receive to T Transmit Pin R Receive to R Receive Pin R Receive to T Transmit Figure 6 2 3 Framed area of Connection Copyright CPS America Co Ltd Page 29 CHNT POWER d F Modbus Card
26. component installation Multi Meter Multi meter symbol indicates that a multi meter is needed for measuring to ensure the proper operational functionality of components Tools Tools symbol indicates that specific tools are required during installation procedures Copyright CPS America Co Ltd Page 3 CHNT POWER ie 1 Introduction This manual describes all the information needed to install and operate the following PV Inverter Models CPS SCE4KTL O US CPS SCEBKTL O US CPS SCE6KTL O US and CPS SCE7KTL O US IMPORTANT In order to avoid problems during the installation it is recommended to read the entire user manual before any installation procedures Any improper usage may result in damage to the unit Therefore it is important that all installation procedures shall be completed by qualified personnel that have been trained to install and operate PV Inverters Moreover this user manual only describes the information that is needed for the CPS grid tied PV Inverter and does not cover any installation information relating to other equipment installed in the PV system The following safety instruction should be followed WARNING It is necessary that only qualified personnel conduct the installation and operation of the PV Inverter Otherwise risk of damage to or destruction of part or all of the Inverter and or other equipment connected to the Inverter or personal injury due to improper installation proce
27. dings of 2 microprocessors are not Consistent Consistent Fault ui consistent It could be caused by CPU and or au other circuit not functioning properly All the cooling fans of the unit are locked and not Fan Lock Fan Lock functioning All models Internal fan abnormal only for CPS Fani Lock Fani Lock SCE6KTL O US and CPS SCE7KTL O US External fan abnormal only for CPS Fan2 Lock Fan2 Lock SCE6KTL O US and CPS SCE7KTL O US Over The internal temperature is higher than normally Temperature too high temperature allowed value The relay between the inverter and grid is not Output Relay Failure Relay failure E functioning Copyright CPS America Co Ltd Page 65 CHNT POWER Output DC Injection too a DEM TM DC Inj high Output DC current injection is too high Ig EEPROM EEPROM Problem e The inside EEPROM has data access problem ailure Operation Condition Communication failure Communication between the inside MCU is SCI failure between microprocessors abnormal DC bus voltage is EE High DC bus The DC BUS inside is higher than expected 00 hig GFCI detection abnormal GFCI Failure The GFCI detection circuit is abnormal Resistance stick abnormal Damp Fail The function of resistance stick is abnormal 11 2 Trouble Shooting Actions Trouble shooting action for System Faults Messages A Isolation Fault Conditions The resistance between the PV or PV and grounding is outside the permissibl
28. dures and practices correctly could result in damage to or destruction of part or all of the CPS grid tied PV Inverter and or other equipment connected to the Inverter or personal injury Preventive Regulation of Product The Inverter should be installed operated and maintained by qualified personnel who have read and understood the operation instructions The qualification of the personnel is defined in the National Electrical Code Moreover CPS grid tied PV Inverters are provided with fixed trip limits and shall not be aggregated above 30kW on a single point of common connections Page 2 Copyright CPS America Co Ltd CHNT POWER ie Safety Symbols ELECTRIC SHOCK Electric shock indicates a potential risk of electric shock if not avoided WARNING Warning indicates a potentially hazardous situation that could result in death or serious injury if not avoided CAUTION Caution indicates a hazardous situation that could result in minor injury if not avoided HOT SURFACE Hot surface indicates a hot surface during operation that could result in a burn injury if not avoided IMPORTANT Important indicates important and useful information that the user should know about the system ESD Protection Risk of electric shock can occur when qualified service personnel are dealing with the electrical components within the PV Inverter such as wiring box An ESD glove should be worn during the wiring operation fuse replacement and
29. dures or practices ELECTRIC SHOCK Alternating Current AC and Direct Current DC sources are directly connected to the terminals in the PV Inverter In order to prevent risk of electric shock before maintenance or installation it is necessary to ensure that all AC and DC terminals are disconnected HOT SURFACE Although the inverter is designed to meet international safety standards the surface of the inverter can become hot during operation Therefore do not touch the heat sink or peripheral surfaces during or shortly after operation Copyright CPS America Co Ltd CHNT POWER ELECTRIC SHOCK Hisk of electric shock from energy stored in capacitors Do not remove the cover until three minutes after disconnecting all sources of power supply and the service should be done by qualified personnel 2 Limited Warranty The warranty policy of this product is specified in the contract otherwise the warranty period is 10 years This warranty covers all defects due to design components and manufacturing However the warranty does not cover damages resulting from the following circumstances Seal on the product is broken Improper transportation and delivery Improper installation and operation Insufficient ventilation for the inverter The Inverter has been misused neglected or abused The Inverter has been used or stored in conditions beyond its electrical or environmental specifications The Inverter has been us
30. e range lt 2MQ Corrective Actions v A Restart the inverter again v f fault still occurs after the unit is restarted contact the system installer immediately v Askthe system installer to check if the PV Inverter and PV Modules are properly insulated throughout the solar system Grid Fault Conditions The grid voltage or grid frequency of the PV Inverter is not within the permissible range This can be caused by improper connection of the AC side wrong setting of the utility dip switch or the local grid condition is out of acceptable range Corrective Actions v Check the grid voltage and frequency information from the LCD displays v If the detected grid voltage is within permissible range restart the PV Inverter and try again If fault remains contact the system Page 66 Copyright CPS America Co Ltd CHNT POWER installer to check the grid voltage and cable connections between PV Inverter and Utility system v f detected grid voltage is out of permissible range contact the system installer to check the feed in AC voltage and contact the utility operator for further action C No Utility Conditions Utility is not available This can occur if the AC fuse is broken No AC connections from utility system or broken AC cables Corrective Actions v Check the Utility system and the AC connections of the PV Inverter v Check the AC fuses of the PV Inverter v ffailure remains disconnect the PV Inverter and cont
31. ed for purposes other than for which it was designed e The Inverter has been used beyond its stated specifications operating parameters and application Acts of third parties atmospheric discharges excess voltage chemical influences natural wear and tear and for loss and damage in transit e improper testing operation maintenance adjustment repair or any modification of any kind not authorized in writing by the inverter supplier e The Inverter has been connected to other equipment with which it is not compatible Application beyond the scope of applicable safety standards or grid codes VDE UL etc Acts of nature such as lightning fire storm flood and vandalism etc Repairs and or replacement 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 for replacement or repair The damage report must be issued within seven working days after receiving the PV Inverter Manufacturer is not responsible for damages beyond the scope of this warranty Copyright CPS America Co Ltd Page 5 CHNT POWER ie C2 Features Overview Max energy yield CEC efficiency of 9796 Transformer less Design Field selectable voltage out 208 240 277 Vac Wide MPPT voltage operating range 105 500V Integrated NEC compliant wire raceway Integrated PV system AC DC disconnect switch
32. gure 6 4 2 and figure 6 4 3 The diameter and number of knockouts on different sides of the Inverter are listed in Table 6 4 1 as the reference for installation Right side Bottom side Figure 6 4 1 Knockout Directions of Wiring Box Page 38 Copyright CPS America Co Ltd CHNT POWER CY yH E E XY 5E T CN wu F sE ot CN uD 3 m E E jj e El Sel SS s 4 cE E 36 5 KI m5 00 i saj S 775 TEN Og f AQ FX FX F _ oS A I vL x OO 6 O O e a fa sc ee E ir ir 5 9 5mm 9 5mm CN cn 0 9 5in 2 01in 2 532in 2 01in 2 01in 2 32in 2 01in 1 69in 0 93in 23 6mm 5tmm 58 9mm 51mm 51mm L58 9mm 51mm J 43mrd 23 6mm o o E E cE E sE os X4 RE 95 Ts mr ri 7C FL ENEN dei a A if M MUS AAAA AA Em 0 37In 0 37in 3 5mm 2 5mm 0 93in Olin 2 32in 2 01in 2 01in 2 32in 2 01 1 69in 0 83in 23 6mm 5 mm 58mm 51mm 51mm 58 Smm 51mm Hm 23 6mm Figure 6 4 2 Dimensions of Knockouts Table 6 4 1 Knockouts of PV Inverter Direction Diameter Quantity Combo 1 1 4 in amp 1 in Bottom side Combo 3 4 in amp 1 2i 4 Combo1 1 4in amp 1in 4 Back side Combo 3 4in amp 1 2in 4 Comboid 4in amp iin 3 Let side Combo 3 4in amp 1 2in 1 n Comboi 4in amp iin 83 Right side Combo 3 4in amp 1 2in 1 Open the knockouts for wiring CPS PV In
33. he name plate indicates general electrical information of the product as shown in Figure 5 3 2 Copyright CPS America Co Ltd Page 15 CHNT POWER POWER Photovoltaic GridTied Inverter Model CPS SCE4KTL O US Input Max DC voltage 600Vdc Nominal Operating voltage 360Vdc Range of operating voltage 100 515Vde Maximum input current 19Ad Output Maximum continuous power 4000W for 240Vac 277Vac 3800W for 208Vac Nominal output voltage Default 240Vac split phase Optional 208 240 277Vac single phase setting required Nominal output frequency 60Hz Maximum continuous current 18 5A 208Vac 18 5A 240Vac 16 44 277Vac Operating voltage range 186 225V 208Vac 215 260V 240Vac 248 300V 277Vac Operating frequency range 59 32 60 48Hz Output power factor gt 0 99 Enclosure E Type 3R Operational temp range 25 C 50 C S N i DI Conforms to UL Std 1741 Intertek Certified to CAN CSA Std C22 2 No 107 1 4001729 Figure 5 3 2 Main Housing Name Plate A warning label plate is located in the left hand side of PV Inverter as indicated in figure 5 3 4 This 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 label as a reminder in order t
34. ind in the above table Copyright CPS America Co Ltd Page 13 CHNT POWER ie 5 2 Visually check the PV Inverter lt is important to check the PV Inverter for any visible damage including the LCD screen If there are visible damages can be found please contact the dealer or supplier immediately WARNING Due to the weight of the inverter it is recommended at least 2 people lift the PV Inverter from the packing and also for the mounting the PV Inverter on the wall CAUTION It is important to use the correct lifting point to lift the PV Inverter from the packing aS any improper carrying and moving could result in serious injury or damage the unit Warning Any modification of the PV Inverter is not permitted Risk of damage can be caused by any improper modification Page 14 Copyright CPS America Co Ltd CHNT POWER d 5 3 Identify the PV Inverter The structure of the CPS grid tied PV Inverter can be divided into two parts main housing and wiring box shown in figure 5 3 1 The main housing contains the electrical components 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 Main Housing Wiring Box PY Serta AUC disa mmast NEC 2008 Cornpliant Figure 5 3 1 PV Inverters Structure CPS grid tied PV Inverter can be identified by the name plate T
35. is also necessary to have a circuit breaker or fuse switch installed between PV modules and PV Inverter When there are PV strings connected with the circuit breaker or fuse switch please ensure it is turned off before connecting the DC cables to the DC input terminals of PV inverter B For the DC cables the terminal connectors are recommended to be used with cables in order to ensure the effective electric conduction between DC cables and DC terminals as shown in figure 7 1 2 Figure 7 1 3 Terminal connectors are required for DC Cables Copyright CPS America Co Ltd Page 43 CHNT POWER C Connecting DC cables of PV strings to the DC terminal by taking the following steps DC Figure 7 1 4 DC terminal for PV inverter i Select the proper rating for the string fuse by following the calculation that had been mentioned in section G DC Protection of chapter 6 2 li Install the DC fuse in its assigned location iii Connecting DC positive polarity cable to the DC positive pole terminal in the wiring box iv Tighten the DC positive polarity cable in the DC terminal by a screwdriver with the required torque value 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 terminal by a screwdriver with the required torque value vil Double confirm the DC cable from the DC terminal in order to ensure all the DC cables have been tighten
36. isplay Menu 04 5 2 2 Date and Hour Display Menu 5 5 lt x sxc lt s sessssnnenssnstssienstosezczze 99 9 Maintenance e emer rrr n nnn nnn nn nnnm nn nnam 56 9 1 Replace ne extemal coolingtan s sss4rne 96 Rene cB CO D DICHI sbcrricaziale 59 9 3 Install or Replace the DC AC fuse 99 10 Specifications mmm nm Mn nM MTM MTM 61 11 Trouble Shooting iii iii iii eee einen 64 Il Display Message Table s ae 64 11 2 Trouble Shooting ACHOTIS seeeseesceececescencesescescecanceen ec dsapeds eda uemexecdesnie due 66 12 Power Curve e emen n rrr rrr nnn nn nnnm mmm 11 Appendix Configuration Of Wiring BOX 72 Copyright CPS America Co Ltd CHNT POWER ie Before You Start This manual contains important information regarding installation and safe operation of this unit Be sure to read this manual carefully before using Thanks for choosing CPS Grid tied PV Inverter referred to in this manual as PV Inverter or simply Inverter This PV Inverter is a highly reliable product due to its innovative design and perfect quality control Such an Inverter is used in high demand grid tied PV systems lf you encounter a
37. l LCD displays a Lock text To release the user can presses the same control button for another two seconds again in order to release menu from the lock mode C Down Control Button The down control button is used to advance the display menu in the opposite direction to the up control button D Liquid Crystal Display LCD A green color LCD screen is used to display the text messages of the operating status monitoring parameters PV inverter failures and inverter faults Moreover the LCD screen will be automatically turn off after ten seconds if LCD is not manually operated using the above control buttons or nighttime button Page 12 Copyright CPS America Co Ltd CHNT POWER ie 5 Installation of PV Inverter 5 1 Open the package The product package contains the following items Table 5 1 1 Qty Noe O 1 PV Inverter 1 Photovoltaic Inverter 2 Mounting Bracket 1 Upon which Inverter be hang and mounted onto a wall 3 Accessory Box 1 Contains all necessary accessories Table 5 1 2 Note Please keep the package box in case of need for sending the product for repair service A Table 5 1 1 Items in the package User s Manual Mounting Anchor Screw MA A Table 5 1 2 Items in the accessory box Terminal Connectors of AC DC wires are provided for Each Inverter Model Table 5 1 3 Number of terminal connector Wire diameter wawa 123 The number of spare parts is listed beh
38. lugging the DC connectors with the cables of PV strings it s important to conduct polarity check by following the steps below i Using multi meter to measure the PV strings cable ends and check the polarity li The positive terminal of cable should match the Female Connector ii The negative terminal of cable should match the Male Connector Multi Meter fi ed O Q Figure 7 1 2 Polarity checking Page 42 Copyright CPS America Co Ltd CHNT POWER d Use multi meter to confirm the total input power of PV strings in order to ensure the input power from PV strings will not exceed the permissible set point of 600VDC as the maximum operating voltage of PV inverter and the maximum DC input current should be within 20A for each pole of DC terminal IMPORTANT Configuration of the PV modules should be done by qualified service personnel with the instructions that are provided from the manufacturer of the PV modules Ensure the configuration for each string of the PV system meets the specifications required by the CPS grid tied PV Inverter Multi Meter It is important to use a multi meter to measure the DC input voltage that is generated from the PV modules It must not exceed 600Vpgc IMPORTANT The CPS grid tied PV Inverter is designed with a transformer less topology It is recommended NOT connecting the Inverter with the PV modules that require positive or negative polarity to ground And it
39. n 3 pole in the AC terminal block when a 208 grid tied PV system is applied with the PV inverter Table 6 2 3 Standard AC Cables CPS CPS CPS CPS Terminal block SCEAKTL O US SCESKTL O US SCE6KTL O US SCE7KTL O US Terminal block Admissible 10 AWG 8 AWG 6 AWG labeled with 1 Conductor size 90 C 194 F Copper 2 3 15 6 Ibf in 18 Kgf cm 33 1 Ibf in 38 1 Kgf cm Admissible Terminal block 10AWG conductor size labeled with G 15 6 Ibf in 18 Kgf cm 33 1 Ibf in 38 1 Kgf cm IMPORTANT The selection for the AC cable size for the Position 1 Position 2 Position 3 is referred to the table 310 16 in the National Electrical Code NEC Copyright CPS America Co Ltd Page 35 CHNT POWER K Utility Configuration DIP Switch It is a utility configuration dip switch that is embedded within DC AC wiring box This dip switch allows the user to do different configurations of the PV Inverter in order to let it connect to the different public grid tied PV systems using the same inverter The dip switch is located at the right bottom side of wiring box which just under Modbus interface card and nearby the RS232 interface port as below shown in figure 6 2 6 Bacal PRI d d d i ED nine visa oos OO ord Figure 6 2 6 Utility Configuration DIP Switch Page 36 Copyright CPS America Co Ltd CHNT POWER d L RS232 Interface for service purpose Firmware upgrades are also available and
40. ng Serial connections 4 wires RS422 or 2 wires RS485 up to a maximum of 31 slaves on the same line Leds Green Led power supply ok and communication with the inverter Yellow Led Modbus Communication Dimension LxWxH mm 132 x 60 x 10 5 Page 32 Copyright CPS America Co Ltd CHNT POWER A G DC Protection This is the over current and over voltage protection that is used for the Direct Current DC side Please refer to configuration diagram that shown in Appendix to connect have a proper configuration for the DC side of PV system The PV Inverter is shipped with dummy fuses solid aluminum cylinders in the shape of the proper fuses Since there are four pairs of DC input ports four fuse holders shall be equipped for the four positive polarity ports and others fuse holders are equipped for the four negative polarity ports Therefore there are supports to have eight fuse folders total to the DC side as shown in figure 6 2 5 Pits FK Si e Ais Sa FF H di ii moo momo iii i st k Figure 6 2 5 Location of DC Fuses Holders IMPORTANT The PV Inverter is shipped with a dummy fuse in the fuse holder It is necessary to select the proper series fuse depending with the solar modules that are used Remove all dummy fuses prior to installation and operation The installer or qualified service personnel should select the required DC fuses during the installing procedure The rating selection of the DC
41. ny problems during installation or operation of this unit first check this manual before contacting your local dealer or supplier Instructions inside this manual will help you solve most installation and operation difficulties Please keep this manual on hand for quick reference Copyright CPS America Co Ltd Page 1 CHNT POWER ie Important Safety Notification General This user manual contains important instructions and notifications that must be followed during installation and maintenance of the CPS grid tied PV Inverter The CPS grid tied PV Inverter is a well designed product through strict tests to meet international safety requirements but as an electrical and electronic equipment certain precautions must be observed during the installation and operation of the PV Inverter In order to avoid personal injury during installation and daily operation of the Inverter users must read and follow all instructions cautions and warnings that are described in this manual Electrical Code CPS grid tied PV Inverters follow the National Electrical Code and other local regulations to meet the requirements of electrical installation in the United States For the electrical installation in Canada inverter installation must be completed in accordance with applicable Canadian standards Safety Instructions This manual contains important safety instructions to minimize the hazards to people and equipment Not following the proce
42. o prevent any electric shock that can happen during the configuration period UTILITY NTERCONNECTED RACCORD AU SERVICE PUBLIC a Both AC and EXC sourse olroults ara Terminated inside tha PV Eystem ce DE dieconmmset Each ercuptaheuld disconnected in ac sels aei dor usar manual prior to servicg amp Lee circuits d alimentation esa ala amni tous deux raccord e su sectionmeue 5 58 PY Ghaque olroult doit dire coup en coetormibi avec mos d ampioi Avani ta ua e DECUS n ou reparatia b Whon the photowoltado anay in exposns to light it Supple a de voltage t guipement b Lorsque les panneaux photovo ltalfigues sont CERT T la lara ila fournissant umn tension ce amp ca materia Morethan omo live chroult Sae diagram Cet apparel renferme plush ure clremite apus tension Volt le sch ma Posar fed from mora than ona sourca L alimentation provient d plus d una BOUTO Fot Continued Protection Against Risk Of Fina Replace AC and DE Fuses Only With pr i und Ratings In ardar ta Maintain 3rd Party Certification and NEC Over Current Pretection Aequireme Pour pr ssrvar la protection contra Dinsandia remplaser jaa fesiblaa 2 8 al ee imbgiuement pir das mod ls de mimi type at de m me valeur de monia malntomir la Certification de terca parii at las HII TIE TI de protection comina les surintanelt a dia NEC A mum A E Hoat Sink Fine mra Live Gloconmect Unit Balora Servicl Lee plaq
43. onnect switch to complete the fan replacement procedure Page 58 Copyright CPS America Co Ltd CHNT POWER 9 2 Clean the LCD Display If the screen of the LCD display and the LED indicators are dusty and not readable please use a piece of damp cloth to clean the surface 9 3 Install or Replace the DC AC fuse Insulation Protection The insulation gloves should be worn during wiring replacing fuses and installing components ELECTRIC SHOCK There is a risk of electric shock from the energy stored in the capacitors Therefore it is necessary not to remove the top cover of wiring box until 3 minutes after DC AC disconnect switch is turned off It is necessary to turn off the external DC AC breakers if they exist Otherwise it is important to disconnect all the PV modules and AC utility connections before the service of fuse replacement The PV Inverter must be disconnected from all sources of power supply Refer service to only qualified service personnel IMPORTANT The selection of the DC fuses must follow the instructions Outlined in chapter f DC protection of section 6 2 within the manual A Remove the fuse cover from the fuse holders as shown in figure 9 3 1 Figure 9 3 1 Remove the fuse cover Copyright CPS America Co Ltd Page 59 CHNT POWER ig B Next take off the broken fuse or dummy fuse from the fuse cover as shown in figure 9 3 2 Figure 9 3 2 Take off the broken fuse C Insert
44. or cooling fan inside the main housing of PV Inverter is probably defective and needs to be replaced Please contact our after sales service center for further assistance Page 56 Copyright CPS America Co Ltd CHNT POWER If the cooling fan is too dirty a vacuum cleaner can be used to clean the PV Inverter from the top If the cleaning procedure does not fixed the problem call our after sales service personnel to determine the status of the cooling fan and make a replacement The following procedures describes how to change the cooling fan please read and understand all procedures before doing so A Switch off the DC AC disconnect switch and wait for at least three minutes to discharge the stored energy in the PV inverter Figure 9 1 1 Turn off DC AC switch B Unfastening all screws located in each corner as highlighted in figure 9 1 2 After the screws are removed take off the top cover of the cooling fan from PV Inverter as shown in the figure below Figure 9 1 2 Screws for the external cooling fan Copyright CPS America Co Ltd Page 57 CHNT POWER C Taken out the cooling fan and then disconnect the power cable of the cooling fan as shown in Figure 9 1 3 ha sa Figure 9 1 3 Disconnect the power cables of the cooling fan D Replace with a new cooling fan by connecting its power cable to PV Inverter Then re tighten the 4 screws at the top cover E Switch on the DC AC disc
45. phase Y grid system a wye type configuration can be used by 3 AC wires connected to L1 L2 and N with a ground cable connected to the N location as shown in the above table WARNING Configuration of utility grid connections is required to be completed by a licensed technician or electrical contractor Ensure the correct sized AC cables are used Page 46 Copyright CPS America Co Ltd CHNT POWER DANGER The Alternating Current AC source is directly connected to the terminals in the PV Inverter All connections between public utility and the PV inverter s Alternating Current AC terminals must be operated and serviced by a licensed technician The utility configuration dip switch is embedded within wiring box to ensure the PV Inverter can be used in the different utility grid systems The configuration setting of this dip switch is described in figure 7 2 1 The following tables described the functions that can be enabled through the PIN configuration on the utility configuration dip switch It is recommended that a qualified service personnel complete the configuration of this DIP switch during the installation period Utility configuration setting 3 8kW Limitation 4KW model only Description Utility Configuration 1 2 3 Description la 208 Delta Cornergrounded l i 240 Delta Corner grounded 240 120V split phase stinger Figure 7 2 2 Utility Configuration Setting DIP Switch Outp
46. put Side Shipped with dummy fuses Modbus Card 8 fuse holders for DC Input Shipped with dummy fuses DC input terminal Protection MOV for AC Output side AC output terminal AC Utility configuration dip switch RS232 Interface Port Hardware Functioning Copyright CPS America Co Ltd CHNT POWER A Protection MOV for DC Input Side It is the surge protection that is equipped and used to protect input circuit against excessive voltage on the DC connections B Bypass Terminal block for DC Input Side It is the bypass terminal block for solar and solar polarity that used to co operate with an external combiner box and external fuses The maximum current of this DC input bypass terminal block is 38A and the required torque values of the screws is 17 4 Ibf in 20 Kgf 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 directly Positive Polarity Position Negative Polarity Position Figure 6 2 1 Connecting DC Cables with Bypass Terminal IMPORTANT If the DC input cable is connected with the bypass terminal block directly it is important to ensure the limitation of maximum current is below 38A through a single pair cable as figure 6 2 1 mentioned Copyright CPS America Co Ltd Page 27 CHNT POWER ie C DC AC Disconnect It is the disconnect swi
47. ses from Littelfuse and KLKD series can be downloaded from www littelfuse com It is important to follow the standard formula in order to select the proper rating of fuse for DC protection And the size of the DC and AC wiring must to meet with the required size of cables as description at chapter H DC input terminal block and chapter J AC output terminal block in the section 6 2 Page 34 Copyright CPS America Co Ltd CHNT POWER d H DC Input Terminal Block It is the terminal block that is used to connect the DC cables from the PV modules In order to have a trouble free connection it is recommended to connect PV modules of the same type same quantity with an identical configuration of strings However the size selection of DC cables should be referred to cable size requirement in the National Electrical Code NEC ANSI NFPA 70 in order to select the proper size of DC cables that can be used with the PV inverter I Protection MOV for AC Output Side It is the surge protection that is used to protect the output circuit against excessive voltage of the AC connections J AC Output Terminal 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 cables The following table indicated the cable size and torque values that are required for position 1 pole position 2 pole positio
48. t the inverter Copyright CPS America Co Ltd Page 17 CHNT POWER WARNING PV Inverter s surface and housing can become hot during operation Ensure not to install PV Inverters in a location that contains any flammable material CAUTION Ensure selected location has a sufficient space for air flow C The PV Inverter requires an adequate cooling space for heat dispersal Therefore the PV Inverter must have sufficient clearance for the air flow as illustrated below Min Space 1ft 304 8mm Min Space 0 5ft 152 4mm Min Space 0 5ft 152 4mm Min Space 3ft 914 4mm Ground Figure 5 4 2 Required Clearance Space IMPORTANT The NEC requires that the DC disconnect should be mounted between 3 ft 6 5 ft from the ground if the PV Inverter will be used as the standard disconnect Page 18 Copyright CPS America Co Ltd CHNT POWER d D Install Orientation Selecting a proper orientation for the PV Inverter is very important The PV Inverter should be installed in a vertical position In order to avoid heat dissipating issues ensure there are no any obstacles located or installed near by the PV Inverter Figure 5 4 3 Installing Position and Location Copyright CPS America Co Ltd Page 19 CHNT POWER CAUTION Do not to install PV Inverter horizontally and tilt forward direction as illustrated above The PV Inverter is designed only for the vertical installation position Do not place
49. tch that is used to turn on and turn off the power of the PV Inverter The switch disconnects both the DC and AC voltage to and from the PV Inverter Electric shock It is important to avoid touching the DC and AC cabling area during the procedures even if the AC DC switch of PV inverter has been switched off This is because live powers still remaining with the cables please beware D AC Protection I f an external AC breaker or fuse protector is installed it is not necessary to implement AC protection fuses within the wiring box The specification of external breakers or fuses shall meet the recommended ratings listed in the following table Il If there is no external AC breaker or fuse protector installed it 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 used for the each model is correct it is strongly recommended the installer purchase the AC fuses that have already been tested by CPS The recommended list for the AC Fuses Table 6 2 1 AC Fuse Specification CPS SCE4KTL O US KLC 25 25A 600VAC CPS SCESKTL O US KLC 30 30A 600VAC CPS SCE6KTL O US L50S 40 40A 500VAC CPS SCE7KTL O US L50S 50 50A 500VAC Page 28 Copyright CPS America Co Ltd CHNT POWER E Communications slot for Modbus PV inverter has an extended slot for a communication interfa
50. the output AC voltage and AC current Frequency and Output Power Display the AC frequency and the instant output power of the unit Nominal Power and Grid System Menu Display the nominal power of the PV Inverter and voltage of the AC utility system Model Name and Version Display Model name and the firmware version Figure 8 1 1 First level display menu Copyright CPS America Co Ltd Page 53 CHNT POWER A 8 2 Second Level Display Menu 8 2 1 Daily Weekly and Monthly Energy Display Menu Press Enter Etoday Energy Press E Week Press Press Press Enter EXIT Press Enter Press Date VAN Output Energy W Press Enter m Press Week VAN Output Energy W Press Enter i Press Enter Press Month VAN Output Energy NV Figure 8 2 1 Second level display menu E Day Display Menu Itis a menu that will display the output energy for the past 30 days E Week Display Menu Itis a menu that will display the output energy for the past 52 weeks E Month Display Menu Itis a menu that will display output energy for the past 12 months EXIT Display Menu Itis a menu that is used to return back to Etoday menu the level 1 display menu Page 54 Copyright CPS America Co Ltd CHNT POWER A 8 2 2 Date and Hour Display Menu Press Enter Press Enter A Press Date V Hour lt Adjusting Year PA justing Month Press Enter
51. ue values for the Position 1 Position 2 Position 3 is referred to the table 310 16 in the National Electrical Code NEC E Connect the AC cables with PV inverter by inserting them through the conduits into wiring box as figure 7 2 4 shown Figure 7 2 4 Insert the AC cables through conduit F For the AC cables the terminal connectors are recommended to be used with AC cables in order to ensure the effective electric conduction between AC cables and AC terminals as shown in figure 7 2 5 Figure 7 2 5 Terminal connectors are required for AC Cables Page 50 Copyright CPS America Co Ltd CHNT POWER G Confirm the selected grid system is compatible with the PV inverter Then connect the AC cables to correct positions as per the symbol on the configuration label for the AC cables in the wiring box Figure 7 2 6 shows the AC cable connections when a 208V grid system is applied with the PV inverter L phase cable is connected to position 1 pole Neutral cable is connected to position 2 pole and ground cable is connected to the ground symbol pole On the other hand please ensure the setting of the AC DIP switch has been set correctly with the applied grid system Figure 7 2 6 Connect the AC Cables to Correct Positions H Tighten the screws for the AC cables with the required torque values as listed in the Table 7 2 2 Then turn on the circuit breaker from the utility panel or switchboard and use a multi meter to
52. ues da na hie FPR Le agmi ae tenason D brancher l appareil avant tout antratinn ou r naration Hn i E 0000 E CAUTION Risk of Electric Shock No User Sandiosnbla Parts Inside Refer Servicing To Chua fla Servies Parsonmal ATTENTION E lps FEL acina Ma contionto pi on r parabin pa util teeta ue ere lus nkparatione du personnel d emtretian qualifi Do mot remove the PV System AC DC Diesariazi Goer Wind 41 joa 3 minutes aftar disconnecting all source tlr uib Lajaser le oopot du sectlonnear a o do a du aVatima PY an plaza pendant gu meaina 3 minutes spree avoir dibranch tons lee olrowlte d alirmantzatinn To reduza the risk of bume Da TT Ma pes tagcher aque de br lure Figure 5 3 4 Warning Label Plate Page 16 Copyright CPS America Co Ltd CHNT POWER 5 4 Mount the PV Inverter 17 09in 8 39in 434mm 213mm m dedere s d gb dog SS rc 33 46in 850mm PY Syste ADE been eat HBT 3098 Gompliaat Figure 5 4 1 Required Dimension A Select a dry location out of direct sunlight with ambient temperature between 20 and 45 C IMPORTANT It is important not to install the CPS grid tied PV Inverter under direct sunlight because the exposure of direct sunlight may cause an internal heating and also a reduction of output power which is Known as derating protection B Select a wall or solid vertical surface which is strong enough to suppor
53. unction Dip Descrpion SW3 4 Protocol DIP 1 OFF Modbus Selection uzia DIP1ON RS485 5 RS485A load DIP3 DIP 3 OFF no load on line RS485B load DIP4 DIP 4 OFF no load on line LED YELLOW LED GREEN LED I eee AP ON Power supply ok the board is not communicating with the inverter BLINKING Modbus ok Communication with inverter is ok 500ms ON 500ms OFF e This flag is set each time the board receives a valid Modbus command and reset after one second if not receiving any other command Copyright CPS America Co Ltd Page 31 CHNT POWER d Il Problems and solution The PCB dont start PCB not well fix on SLOT Control the PCB fixing on Inverter is OFF SLOT verify if the PCB broken Inverter is OFF If the problem still present contact service The PCB dont Initialization error waiting for The system is waiting for communicate with the communication condition command reset Reset the inverter PCB by stop and restart green led ON the Inverter The PCB don t Wrong connection RS485 line Verify the cable communicates with the Wrong setting connection Modbus SW Verify the RS485 terminal resistor setting IV TECHNICAL FEATURES See the table below for the technical features of the board Feature Specification Part number SOSERO2MB Insulated power supply SELV 12VDC Description Modbus Protocol conversion board for Solar Modbus commands 0x04 single or multiple readi
54. ut power limit at 3 8kW ON OFF Rated output power OFF IMPORTANT It is important to complete the DIP switch settings before starting the AC wiring connections Copyright CPS America Co Ltd Page 47 CHNT POWER Table 7 2 1 Utility Configuration seals 234 DIP ON Utility Configuration AC Terminal DIP switch Setting Description LCD Display Pin Pin Pin DIP 1 2 3 1 2 3 switch L1 FIORE XKW 208 elta 208V ale Delta ON OFFIOFF 172 3 Corner L1 L2 G DIP ON Corner grounded grounded L1 240 Delt DO elta 240V MP Delta ON OFF ON 17 sa Corner L1 L2 G DIP ON Corner grounded L2 grounded 480Y 277 V 3 phase L1 277V bad lf XKW ON ON OFF 723 480 Y 277 V L1 L2 G 277Vac DIP ON System 240V 120V sere split phase XKW ON ON ON 7525 L1 L2 G DIP ON 240V 120V 240Vac Split Stinger Page 48 Copyright CPS America Co Ltd CHNT POWER A 208Y 120 V L1 3 phase XKW zv OFF OFF OFF AAA 208Y 120 V L1 L2 N G Note The neutral conductor is required to be the same gauge as the phase conductors Configuration for the AC Wiring A After the DC wiring connection is finished start to dash an open hole for the AC cables insert the conduit and tighten with the conduit gland Figure 7 2 3 Insert a conduit through an open hole
55. verter supports configurations of wiring from different directions with conduits For the knockouts two different sizes can be used and the diameter of these knockouts is shown in figure 6 4 2 Each knockout has two different levels of opening area that can be used inner level area and outer level area as figure 6 4 3 indicates Copyright CPS America Co Ltd Page 39 CHNT POWER Outer level area om Inner level area X Figure 6 4 3 Levels area and the size of Knockouts Upper Knocking Point Lower Knocking Point Figure 6 4 4 Knocking points of inner level Left hand side Right hand side Knocking Point Knocking Point Figure 6 4 5 Knocking points of outer level 0 75 0 5 1 25 1 Tools A M4 size slotted screwdriver and hammer are required for the opening procedure of knockouts Page 40 Copyright CPS America Co Ltd CHNT POWER a In order to utilize an opening hole in the inner level area it is necessary to use the required tools such as a slotted screwdriver with a hammer to knock at the certain point repeatedly as figure 6 4 6 indicated Figure 6 4 6 Knocking point of inner level 1st Step Use tools to target upper strike point and knock it 2nd Step Use tools to target bottom strike point and knock it Last Step Repeat the 1st and 2nd steps until the hole of inner level is opened In order to dash an opening hole at outer level area it is necessary to use the required
56. x OCPD Over Current Protection Device rating should not exceed the value in Table 6 3 1 Test condition of night power consumption 240Vac oN O CI The LCD panel working temperature must be above 20 C The inverter can work normally without LCD display between 20 C and 25 C Page 62 Copyright CPS America Co Ltd CHNT POWER CPS CPS CPS CPS SCE4KTL O US SCESKTL O US SCE6KTL O US SCE7KTL O US Display and Communication Display LCD LED Communication RS232 Modbus Copyright CPS America Co Ltd Page 63 CHNT POWER d 11 Trouble Shooting 11 1 Display Message Table It is important to understand all operational and error messages that could appear on the LCD display The error messages that appear are especially important because service personnel will need this information reported in order to help them define the failure and correct it I Working Status Messages Condition Initial condition Before system startup Power Off No Display voltage 150V o e PV Inverter is totally shutdown Vpv 80V Initial condition When PV voltage is higher than 150V inverter is waiting for feeding to Initialization and Waiting Waiting the grid After Startup Input voltage range is at 80 100V Checking When PV voltage 150V inverter is checking Check Grid XXXS grid conditions Feeding Grid Inverter is feeding power to the grid FLASH FLASH FLASH Firmware Monitoring Parameter Messages I
57. y dust floating within air during serving period Please be aware and avoid CAUTION It is necessary to disconnect the DC generator and AC Utility if the wiring box is already wired with any DC or AC connection It is necessary to wait 5 minutes in order to ensure all the electrical components are discharged ESD Protection An ESD glove should be worn during the cable wiring replacing the fuses and installing the components ii Turn off DC AC disconnect switch from the wiring box as illustrated below Figure 5 4 9 Turn off DC AC disconnect switch Copyright CPS America Co Ltd Page 23 CHNT POWER ig iv Unfasten 2 pieces M4 and 4 pieces M5 screws from the top cover of wiring box as illustrated below Figure 5 4 10 Remove the screws of DC AC Wiring Box Screwdriver A M5 hexagon head screwdriver is required for the procedure Page 24 Copyright CPS America Co Ltd CHNT POWER v Remove the top cover of disconnect box and then find the highlighted location from the below figure and then insert 2 M4 size screws Figure 5 4 11 Screwing Location for the Security Screws Copyright CPS America Co Ltd Page 25 ig CHNT POWER 6 Wiring Box Overview 6 1 Hardware Structures 6 Page 26 A B C D E F G H J K 2 Figure 6 1 1 Wiring Box Structures Protection MOV for DC Input side DC bypass terminal DC AC Disconnect 2 fuse holder for AC Out
Download Pdf Manuals
Related Search