CHNT Power CPS SC250KTL-H, Installation And Operation Manual

Page 1: ...CPS SC Series Grid tied PV Inverter CPS SC500KTL CPS SC500KTL H CPS SC250KTL H Installation and Operation Manual SHANGHAI CHINT POWER SYSTEMS CO LTD ...

Page 2: ...scription of CPS SC250KTL 8 Chapter 3 Installation 9 3 1 Basic requirements 9 3 2 Mechanical installation 9 3 3 Electrical installation 16 3 3 1 DC connection 18 3 3 2 AC and ground connection 20 3 3 3 Communication connection 22 3 3 4 Dry contact and auxiliary power connection 25 Chapter 4 Operation 27 4 1 Start up and shut down 27 4 1 1 Start up 27 4 1 2 Shut down 29 4 2 Operation mode 32 4 3 Gr...

Page 3: ...u functions 46 5 3 1 Interface types 46 5 3 2 Main operation interface 48 5 3 3 Operation information 49 5 3 4 Present fault 50 5 3 5 History 50 5 3 6 System setup 52 5 3 7 System protection parameter setup 54 Chapter 6 Technical Data 57 Chapter 7 Quality Assurance 63 7 1 Warranty 63 7 2 Disclaimer 63 7 3 Quality clause Warranty clause 63 ...

Page 4: ...performed by qualified technical personnel Disconnect the inverter from PV assemblies and the Grid before the maintenance and operation of the equipment At the same time make sure that equipment is grounded properly WARNING 1 When the connected PV module is exposed to the sunlight it generates DC voltage and charges the DC bus capacitors of the inverter Electric charges are still stored in the cap...

Page 5: ...on on the LCD 4 Before opening the inverter for maintenance shut down the inverter through LCD operation Turn off the DC circuit breaker execute the De energy program and then turn off the AC circuit breaker The inverter should not be maintained until the voltmeter shows that there is no electric charge left in the DC bus capacitor CAUTION 1 Pay attention to inverters center of gravity and recomme...

Page 6: ...Chapter 1 IMPORTANT SAFETY INSTRUCTIONS 3 should be switched to outside power supply HIGH TEMPERATURE Do not touch the metal surfaces of the radiator and inverter during the operation of the inverter ...

Page 7: ...odules DC power distribution unit grid connection inverter and AC power distribution unit Figure 2 1 Solar energy is converted to direct current through PV modules The direct current is then converted to alternative current with the same frequency and phase as the grid through grid connection inverter and fed to the grid after voltage stepped up by transformer Figure 2 1 Grid connection photovolta...

Page 8: ... the TUV certification Detailed information can be inquired from our CPS salesmen Because the appearance and dimensions as well as the basic internal structure of CPS SC500KTL H and CPS SC500KTL share the same CPS SC500KTL will be taken as representative in the following instruction 2 3 Inverter circuit structure The basic schematic diagram of CPS SC500KTL inverter is shown in Figure 2 2 CPS SC500...

Page 9: ...ngs of current will be connected in parallel after going through Level 1 AC circuit breaker and be transferred to AC EMI circuit and breaker then finally be fed to the power grid The basic schematic diagram of CPS SC250KTL H inverter is shown in Figure 2 3 Figure 2 2 Schematic diagram of CPS SC500KTL Figure 2 3 Schematic diagram of CPS SC250KTL H ...

Page 10: ...ain components Figure 2 4 1 Operating handle of DC circuit breaker 2 Operating handle of AC circuit breaker 3 LCD display panel and operation buttons 4 Emergency stop button 5 Logo of Chint Power System Co Ltd 6 Door lock A Cabinet 1 for DC input invertion and controlling B Cabinet 2 for DC input invertion and controlling C AC output cabinet ...

Page 11: ... H Description of main components Figure 2 5 1 Operating handle of DC circuit breaker 2 Operating handle of AC circuit breaker 3 LCD display panel and operation buttons 4 Emergency stop button 5 Logo of Chint Power System Co Ltd 6 Door lock A Cabinet 1 for DC input invertion and controlling B AC output cabinet ...

Page 12: ...e is 215 310Vac Default value is 243 297Vac and the parameter can be adjusted on the LCD display panel according to the actual grid voltage and the grid frequency is 50Hz 9 Permission of grid connection has been granted by the local electric power authority 9 Installation personnel must be qualified electricians or people who have received professional training 9 Sufficient convection space 9 Away...

Page 13: ...tice The dimensions in Figure 3 1 do NOT include the operating handles The overall dimensions including the operating handles are 2800 L x855 D x2100 H mm Dimensions of CPS SC250KTL H grid tie PV inverter are shown in Figure 3 2 Figure 3 2 Dimensions of CPS SC250KTL H ...

Page 14: ...inverter installation a The installation dimensions of CPS SC500KTL are shown in Figure 3 3 162 175 36 26 728 80 54 72 72 12 16X30 2800 1000 928 800 80 780 26 26 Figure 3 3 Installation dimensions of CPS SC500KTL b The installation dimensions of CPS SC250KTL H are shown in Figure 3 4 928 526 26 6 16x30 2 16 81 728 1600 175 162 80 54 74 36 780 26 26 Figure 3 4 Installation dimensions of CPS SC250KT...

Page 15: ...pace should be reserved for maintenance Top A 600mm space should be reserved for sufficient convection The weight of CPS SC500KTL is approximately 2000kg and the weight of CPS SC250KTL H is about 1100Kg Please make sure that the mounting place can bear the weight 3 Two approaches are recommended to lift the machine i e lifting with a crane or a forklift ...

Page 16: ...nstallation with the crane shown in Figure 3 5 Center of gravity 1200 1300mm to the left edge About 500mm to the front door Figure 3 5 Diagram of lifting CPS SC500KTL with a crane B Lifting CPS SC250KTL H with a crane Put 4 sling ropes through the four eye bolts on the top of inverter each no shorter than 1 meter Then lift the machine slowly to the appropriate location for installation with the cr...

Page 17: ...t the middle position thus two long and two short sling ropes are required to lift them The recommended length of rope is shown in Table 3 1 Table 3 1 Unit mm Short sling ropes 1000 1500 2000 Long sling ropes 1200 1650 2120 Note 1 The included angle acute angle between the sling rope and the top plate should be more than 45 degree Besides try to keep the lifting hook and inverters center of gravit...

Page 18: ...use forklifts to carry Lifting with a forklift Insert the fork at the bottom place of the machine from the back and lift it to the appropriate location for installation The position for placing the arms of forklift is shown in Figure 3 7 and 3 8 Figure 3 7 Diagram of lifting CPS SC500KTL with a forklift ...

Page 19: ... door to prevent the inverter from being damaged by the forklift 3 3 Electrical installation Open the front door of the machine Proceed as shown in Figure 3 9 1 Turn the operating handle of DC circuit breaker anti clockwise to horizontal position 2 Unlock the door with the door key turn the door knob anti clockwise to horizontal position and then pull the knob to open the front door of Invertion c...

Page 20: ...ntal position 5 Unlock the door with the door key turn the door knob anti clockwise to horizontal position and then pull the knob to open the front door of AC output cabinet Figure 3 9 Diagram of opening front doors 6 After opening the front door remove the protective and transparent Plexiglas covers at the bottom of the machine and connect the external cables to the inverter as shown in Figure 3 ...

Page 21: ... maximum open circuit voltage of the PV modules is lower than 1000Vdc for CPS SC500KTL H and CPS SC250KTL H under any conditions For CPS SC500KTL the maximum open circuit voltage of the PV modules should be lower than 880V b Ensure that the polarity of DC input is correct i e the positive pole of PV module is connected to the All the external cables should be routed from the conduit holes at the b...

Page 22: ...C input as shown in Table 3 2 Table 3 2 8 strings 5 strings 4 strings 3 strings Positive 35mm 50 mm 70 mm 95 120 mm Negative 35mm 50 mm 70 mm 95 120 mm Bolts M8 2 Confirm that the input PV modules are of the same specifications and types before connection of DC input 3 Connect the positive and negative terminals of DC cables to the corresponding inverter s copper bar terminals of DC side as shown ...

Page 23: ...ecommended AC output and grounding cables as shown in Table 3 3 Table 3 3 8 strings 6 strings 5 strings 3 strings L1 70 mm 2 95 mm 2 120 150 mm 2 240 mm 2 L2 70 mm 2 95 mm 2 120 150 mm 2 240 mm 2 L3 70 mm 2 95 mm 2 120 150 mm 2 240 mm 2 GND 200 mm 2 Bolts M10 3 Connect the AC output cables to L1 L2 L3 terminals and PE cable to the ground terminal of the inverter as shown in Figure 3 12 Figure 3 12...

Page 24: ...Use the recommended AC output and grounding cables as shown in Table 3 4 Table 3 4 4 striings 3 striings 2 striings L1 50 mm 2 70 mm 2 120 mm 2 L2 50 mm 2 70 mm 2 120mm 2 L3 50 mm 2 70 mm 2 120 mm 2 GND 120 mm 2 Bolts M8 3 Connect the AC output cables to L1 L2 L3 ter minals and PE cable to the ground terminal of the inver ter as shown in Figure 3 13 Figure 3 13 AC and ground connection of CPS SC25...

Page 25: ...net RS485 2 RS485 1 Figure 3 14 Signal cable terminals for communication 2 The communication of one single local inverter can be connected from the RS485 1 or RS485 2 port on the inverter to 485 bus bar directly 3 For remote monitoring of more inverters connect the RS485 1 port of one inverter to the RS485 2 port of another inverter and then connect to the data logger Interlink through the 485 bus...

Page 26: ...e wiring requirements of RS485 1 2 connector are shown in Table 3 5 and the way of connection is shown in Figure 3 15 Cables 1 8 are shown from left to right Table 3 5 Figure 3 15 Diagram of RS485 1 2 crystal head wiring No Color Function 1 White orange 485 2 Orange N C 3 White green 485 4 Blue N C 5 White blue N C 6 Green N C 7 White brown GND 8 Brown N C ...

Page 27: ...tional The Ethernet interface on the inverter is for data transmission running on TCP IP protocol as shown in Figure 3 14 Shielded twisted pair STP is recommended for the communication cables Both terminals of a communication line should conform to the 568B standard ...

Page 28: ...c F4AH 600Vac AUX POWER SELECTION 内接电源 外接电源 INSIDE OUTSIDE 辅助电源选择 AUX POWER SELECTION 内接电源 外接电源 INSIDE OUTSIDE 辅助电源选择 Outside power 220Vac 外接电源 220Vac Input Dry contact 输入干接点 Output Dry contact 输出干接点 1 2 3 1 2 3 Outside power 220Vac 外接电源 220Vac Input Dry contact 输入干接点 Output Dry contact 输出干接点 1 2 3 1 2 3 Cabinet 1 for DC input invertion and controlling Cabinet 2 for DC input invertion and controll...

Page 29: ...he operating power AUX POWER SELECTION switch should be turned to INSIDE 2 No 1 and 2 connectors of Terminal can be used to connect dry contacts as the input of inverter control 3 No 1 and 2 connectors of Terminal can be used as the fault alarm contacts of inverter Note For CPS SC500KTL outside power is available to be used as the operating power for both of the DC input cabinets or each of them T...

Page 30: ...according to the indication on the LCD display Before start up Because of the high volume of DC capacity inside the inverter PV panels will charge the DC capacity when the inverter is energized for the first time It takes about 3 minutes for the whole process of charging the LCD indication of which is shown in Figure 4 1 and 4 2 Note For CPS SC500KTL 001 stands for Cabinet 1 for DC input invertion...

Page 31: ...nd 4 6 If charging is NOT successfully completed the DC circuit breaker can NOT be turned on manually Figure 4 5 Connection status of Figure 4 6 Connection status of circuit breaker of CPS SC500KTL circuit breaker of CPS SC250KTL H Afterwards CPS SC500KTL CPS SC250KTL H will run the automatic start up program Automatic start up When the inverter is energized or under normal operation after the ins...

Page 32: ...erter will enter the state of normal operation if the start up conditions are met if not the inverter will stand by Warning If the DC circuit breaker is tripped because of malfunction it is prohibited to turn on the DC circuit breaker directly System reset program must be executed and then turn on the DC circuit breaker according to the indication on the LCD 4 1 2 Shut down Manual shut down Normal...

Page 33: ...down the inverter will shut down automatically Manual Shut down for maintenance If service personnel need to maintain or repair the inverter the manual shut down operation steps should be conducted at first and then execute the De energy program The De energy steps are as follows 1 Turn off the two DC circuit breakers by manual and ensure that the AC circuit breaker is turned on 2 Conduct the manu...

Page 34: ...that the voltage of DC BUS capacitor should be measured to ensure it reaches the safe voltage before maintenance Figure 4 8 De energy completed 5 If De energy fails as shown on the LCD in Figure 4 9 the AC circuit breaker should be turned off and keep the DC circuit breaker turned off as well for the manual discharging The inverter should not be maintained until the voltmeter shows that there is n...

Page 35: ...ecute the command until the process of De energy is completed 2 If software needs to be updated AC and DC circuit breakers must be turned off and the auxiliary power mode should be switched to outside power supply 4 2 Operation mode There are 4 operation modes The following are corresponding indications for each mode 1 System check mode is shown in Figure 4 10 System is in self check status and wi...

Page 36: ...s the power generated by PV modules to AC continuously and feeds to the power grid 3 Standby mode as shown in Figure 4 12 After self check is completed the inverter will turn into standby mode if the output voltage and power of PV panel does not meet the startup conditions The inverter will check automatically whether it meets the startup conditions in this mode until it turns back to normal ...

Page 37: ...r will disconnect from the power grid and turn into fault mode when the PV power generation system fails Check the fault information on the LCD and specific cause can be found in the Troubleshooting table and corresponding instructions are available to eliminate the faults Figure 4 13 Fault indication interface ...

Page 38: ...ion and power generation conditions At the same time it will also check whether photovoltaic array has sufficient energy The inverter will enter grid connection and power generation mode when everything is ready The inverter will maximize the photovoltaic array output power in the way of MPPT Maximum Power Point Tracking during the grid connection and power generation Meanwhile the inverter will c...

Page 39: ... two of them will stop working completely When the photovoltaic power generation system of CPS SC250KTL H fails the inverter will stop working instantly At this moment if the DC circuit breaker is NOT turned off and the system can take POWER ON OFF movements automatically it is detected that there is NO permanent fault in the system If the inverter breaks down the faults can not be eliminated unti...

Page 40: ...ting after sales service There are mainly 3 types of faults alarm protection and hard failure When there is a Warn the system only reminds customers of the problem while it doesn t change the operation mode When there is a Protect the system will turn into fault mode and come back to normal when the Protect disappears When there is a Fault the system will stop working and remain standby until rese...

Page 41: ...an state test circuit has problem 4 Fan service life expires 1 Observe for 5 minutes and see whether the alarm will be eliminated automatically 2 Check the inverter 3 Contact after sales service personnel 3 Warn002x Fan on AC side invisible from outside inside inverter is working abnormally 1 Fan is blocked 2 Power supply circuit of the fan has problem 3 Fan state test circuit has problem 4 Fan se...

Page 42: ...ceeds normal range 1 Observe for 5 minutes and see whether the alarm will be eliminated automatically 2 Contact after sales service personnel 7 Warn006x Inside warning It is detected that the averageAC output in Cabinet 1 2 is 30A larger than that in Cabinet 2 1 1 Observe for 5 minutes and see whether the alarm will be eliminated automatically 2 Contact after sales service personnel 8 Warn007x Ins...

Page 43: ...hin the specified range of operating temperature 2 Check whether radiation air inlet is blocked 3 Whether radiation fan is blocked 4 Observe for 30 minutes and see whether the alarm will be eliminated automatically 5 Contact after sales service personnel 2 GridV OutLim Grid voltage exceeds the specified range or grid is not detected 1 Grid voltage is abnormal 2 Power grid outage 3 Cable connection...

Page 44: ...connection to the grid is disconnected or has abnormalities 4 Contact after sales service personnel 4 PVVoltOver PV voltage exceeds the specified value 1 PV over voltage 2 Inverter has internal problems 1 Observe for 30 minutes and see whether the alarm will be eliminated automatically 2 Check whether PV voltage exceeds the specified range 3 Turn off the PV input switch wait for 5 minutes turn on ...

Page 45: ...resistance between PV PV and the earth exceeds specified range 1 Air humidity is too high 2 Isolation resistance is reduced by other factors 1 Observe for 10 minutes and see whether the alarm will be eliminated automatically 2 Check the insulation of PV system 3 Contact after sale service personnel 8 ACContErr AC contactor fault 1 AC contactor is damaged 2 Inverter has internal problems 1 Contact ...

Page 46: ...lt occurs inside inverter 1 The inverter can be forced restarted once if it is required by operation and if it is confirmed that there is no other problem 2 Record the fault number 3 Contact after sales service personnel Note x stands for the Cabinet NO of the inverter For example Warn0012 means that NO 001 code of warning takes place in Cabinet 2 ...

Page 47: ...d control panel starts to work Light off No working power supply RUN Grid connection operation indicator light Light up In grid connection and power generation state Blink Rundown state light up 0 5s Light off 1 6s Light off In other operation state or no working power supply GRID Grid state indicator light Light up Grid is normal Blink Grid abnormal light up 0 5s Light off 1 6s Light off No worki...

Page 48: ...indicates that the system is energized and under DSP control when POWER lights up RUN will light up when the inverter detects that the grid connection conditions meet the requirements and power is fed to the grid RUN will blink if the grid is in derated running state during the period of feeding power to the grid GRID will light up when the grid is normal during the operation of the inverter Other...

Page 49: ...nctions Users can perform the corresponding operations with the 6 function keys according to the indications of the LCD display 5 3 1 Interface types 1 The LCD interface starts with the company logo once the system is energized as shown in Figure 5 1 Six seconds later the LCD shows the inverter is running system check as shown in Figure 5 2 Figure 5 1 LOGO interface 2 Indication of inverter operat...

Page 50: ... 5 Human Machine Interface 47 Figure 5 2 Inverter system check ongoing Figure 5 3 Default display interface for normal operation Figure 5 4 Inverter system in standby mode Figure 5 5 Fault indication interface ...

Page 51: ...oltage generation power instant generated power and time information under normal operation LCD screen changes into fault indication interface and display the present fault information automatically when the inverter is in fault mode 5 3 2 Main operation interface LCD screen displays default indication interface when the inverter is in operation mode Press the ESC key in this interface to escape t...

Page 52: ...rm selection The users can return to the default indication interface by pressing the ESC key 5 3 3 Operation information When the cursor moves to 1 OP Info in the main interface press ENTER to select the operation information as shown in Figure 5 7 Check the information by pressing PAGEUP and PAGEDOWN Return to the previous menu and enter the main operation interface by pressing ESC Figure 5 7 Op...

Page 53: ...ime as shown in Figure 5 8 Figure 5 8 Present fault information 5 3 5 History Move the cursor to 3 History in the main interface Press ENTER to check the history information as shown in Figure 5 9 There are 4 submenus 1 HistErr 2 OP Recd 3 Version and 4 TotalTag 1 UP to 100 pieces of latest fault messages can be recorded and found in 1 HistErr menu 2 The latest 21 days operation history data is av...

Page 54: ...December 15th the LCD will indicate the operation information of 21 days before that date which is November 24th 3 Software version hardware version and serial number of the product are listed in 3 Version menu 4 Accumulative generated electric power since the first day the inverter began working is available to be found in 4 TotalTag menu Figure 5 9 History menu and submenu ...

Page 55: ...will stand by instead of working normally if the startup conditions are not satisfied even ON is selected The inverter will be shut down immediately if OFF is selected in any cases 2 Two languages i e English and Chinese are available in 2 Language menu 3 Key beep and fault beep can be set mute unmute in 3 Buzzer menu Key beep and Alarm beep can be shifted by pressing PAGEUP and PAGEDOWN Shift bet...

Page 56: ... and baud rate of inverter with 5 Commun menu 6 In 6 OtherCmd menu run 1 De energy to discharge the electric charges of DC capacitor quickly Figure 5 10 System setup menu and submenu 4 Setting 1 ON OFF 2 Language 3 Buzzer 4 SysTime 2009 12 15 21 14 ON OFF ON State 中文 English EnglishVer KeyBeep Enabled AlarmBeep Disabled Address 2 BaudRate 3 1 2400 2 4800 3 9600 4 115200 5 Commun 6 OtherCmd 1 De en...

Page 57: ...ens a severe fault has occurred inside the inverter The user may perform a force restart once in this menu if the user needs to restart the inverter Note that this function is effective only when a fault shutdown occurs The inverter may restore to normal operation automatically if alarm or protection faults occur This function will not respond when the inverter is in operation mode and a FaultOper...

Page 58: ...Chapter 5 Human Machine Interface 55 Figure 5 11 System parameter setup ...

Page 59: ...0V 2 Grid votage lower limit V GridV Min V 0 243 0 270 0V 3 Grid frequency upper limit Hz GridF Max Hz 50 00 50 50 65 00Hz 4 Grid frequency lower limit Hz GridF Min Hz 45 00 49 50 60 00Hz 5 Isolation resistance lower limit KOhm IsoResis KOhm 1 0 10 0 500 0KΩ 6 Active power derating PowerDerating 10 0 100 0 100 0 7 Reactive Compensation ReactiveComp 0 900 1 000 0 900 8 PV start voltage V PVStartVol...

Page 60: ...l Grid Voltage 270Vac 3 phase Allowable Grid Voltage 243 297Vac Nominal Grid Frequency 50Hz Current THD 3 Power Factor 1 System Max Efficiency 98 5 CEC Efficiency 98 0 Protection Degree IP20 Allowable Temperature Range 25 C 60 C Altitude 4000 meters Humidity 0 95 no condensation Cooling Forced air cooling RPM adjustable fan Power consumption overnight 100W Display and communication Standard Commun...

Page 61: ...parameters WxDxH mm 2800 806 2100 Weight kg 2000kg Note 1 Exceeding the rated voltage shown in Maximum DC voltage may cause permanent damage to the equipment Note 2 Allowable Grid Voltage and Nominal grid frequency depend on the specific national grid standard ...

Page 62: ...Voltage 243 297Vac Nominal Grid Frequency 50Hz Current THD 3 Power Factor 1 System Max Efficiency 98 5 CEC Efficiency 98 0 Protection Degree IP20 Allowable Temperature Range 25 C 60 C Altitude 4000 meters Humidity 0 95 no condensation Cooling Forced air cooling RPM adjustable fan Power consumption overnight 100W Display and communication Standard Communication RS485 Optional Communication Ethernet...

Page 63: ...a Weight kg 2000kg Note 1 Exceeding the rated voltage shown in Maximum DC voltage may cause permanent damage to the equipment Note 2 Allowable Grid Voltage and Nominal grid frequency depend on the specific national grid standard ...

Page 64: ...le Grid Voltage 243 297Vac Nominal Grid Frequency 50Hz Current THD 3 Power Factor 1 System Max Efficiency 98 5 CEC Efficiency 98 0 Protection Degree IP20 Allowable Temperature Range 25 C 60 C Altitude 4000 meters Humidity 0 95 no condensation Cooling Forced air cooling RPM adjustable fan Power consumption overnight 100W Display and communication Standard Communication RS485 Optional Communication ...

Page 65: ...a Weight kg 1100kg Note 1 Exceeding the rated voltage shown in Maximum DC voltage may cause permanent damage to the equipment Note 2 Allowable Grid Voltage and Nominal grid frequency depend on the specific national grid standard ...

Page 66: ...ctly or properly including installation and use 4 Products or software is changed without authorization 5 Negligence of safety warning relevant mandatory safety specifications of the product and its related documents 6 Unexpected disaster or force majeure 7 3 Quality clause Warranty clause 1 CPS will repair or replace with new products for products with malfunctions for free during the warranty pe...

Page 67: ...64 Chapter 7 Quality Assurance questions about CPS SC500KTL CPS SC500KTL H CPS SC250KTL H PV grid tie inverter We will be glad to provide the best service for you at any time ...

Page 68: ...www chintpower com Service hotline 021 37791222 6300 Email service cps chint com CPS SC500KTL CPS SC500KTL H CPS SC250KTL H Installation and Operation Manual PN 9 0020 0069B0 is printed for the first time This manual is subject to change without prior notification Copyright is reserved Duplication of any part of this issue is prohibited without written permission ...