background image

 

5.4.3 History ................................................................................... 65 

5.4.4 System configuration ............................................................. 67 

5.4.5 Power dispatch ...................................................................... 70 

5.4.6 System protection parameters setup ..................................... 70 

5.4.7 System control parameters .................................................... 72 

5.4.8 Arcing fault current interruption .............................................. 79 

Chapter 6 Operation ................................................................................... 82

 

6.1 Start-up ......................................................................................... 82 

6.2 Shut-down ..................................................................................... 82 

6.3 Operation mode............................................................................. 82 

6.4 Grid-tied power generation ............................................................ 84 

Chapter 7 Maintenance and De-installation .............................................. 86

 

7.1 Fault shut down and troubleshooting ............................................. 86 

7.1.1 LED fault and troubleshooting ............................................... 86 

7.1.2 LCD fault and troubleshooting ............................................... 86 

7.2 Product maintenance .................................................................... 94 

7.2.1 Check the electrical connection ............................................. 94 

7.2.2 Clean the air vent filter ........................................................... 94 

7.2.3 Replace cooling fans ............................................................. 94 

7.2.4 Replace the inverter .............................................................. 97 

7.3 De-installing the inverter ................................................................ 99 

Chapter 8 Technical Data

 

100

 

Chapter 9 Limited Warranty ............................................................................................ 104 

Appendix: Instruction of inverter selection ................................................................... 105 

 

 

 

Summary of Contents for SCA23KTL-DO/US-480

Page 1: ...1 CPS SCA Series Grid tied PV Inverter CPS SCA23 28KTL DO US 480 Installation and Operation Manual Version 1 4 SHANGHAI CHINT POWER SYSTEMS CO LTD ...

Page 2: ... installation 14 3 2 Mechanical installation 15 3 3 Electrical installation 28 3 3 1 DC connection 29 3 3 2 AC and ground connection 41 3 3 3 Communication connection 47 Chapter 4 Commissioning 56 4 1 Commissioning Checklist 56 4 1 1 Mechanical installation 56 4 1 2 Cable connections 56 4 1 3 Electrical check 56 4 2 Commissioning steps 56 Chapter 5 User Interface 59 5 1 Description of LCD panel 59...

Page 3: ...power generation 84 Chapter 7 Maintenance and De installation 86 7 1 Fault shut down and troubleshooting 86 7 1 1 LED fault and troubleshooting 86 7 1 2 LCD fault and troubleshooting 86 7 2 Product maintenance 94 7 2 1 Check the electrical connection 94 7 2 2 Clean the air vent filter 94 7 2 3 Replace cooling fans 94 7 2 4 Replace the inverter 97 7 3 De installing the inverter 99 Chapter 8 Technic...

Page 4: ... for the North American Solar market If you encounter any problems during installation or operation of this unit first check the user manual before contacting your local dealer or supplier This user manual is applicable for the following 2 models CPS SCA23KTL DO US 480 and CPS SCA28KTL DO US 480 Instructions inside this user manual will help you solve most installation and operation difficulties C...

Page 5: ...tion which if not avoided will result in death or serious injury WARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE NOTICE indicates a hazardous situation which if not avoided could result in equipment working abnormally or p...

Page 6: ...hich must be securely connected to the earth through the PE protective earthing cable to ensure operational safety WARNING All the installation and wiring connections should be performed only by qualified technical personnel Disconnect the inverter from PV modules and the Power Grid before maintaining and operating the equipment DANGER Please disconnect the inverter from AC grid and PV modules bef...

Page 7: ... disabled mode by default Please ensure that this setting meets local code requirements If you need to enable this feature for your install then please call our HOTLINE 855 584 7168 or contact your local sales or service manager for assistance INSTRUCTION Please check with your local electricity supply company before selecting the grid standard If the inverter is operated with a wrong grid standar...

Page 8: ...o the electricity grid DC power distribution equipments AC Grid Bidirectional electric meter AC power distribution equipments Figure 2 1 Grid tied PV system 2 2 Product features High conversion efficiency Advanced 3 level conversion technology Max efficiency 98 6 CEC efficiency 98 Strong grid adaptability 7 grid standards applicable Reactive power adjustable PF value 0 8 Remote Curtailment Flexibl...

Page 9: ...Embedded DC AC switches and up to 8 fused string inputs eliminates the need for external combiner boxes and simplifies installation 2 3 Product protection functions Polarity reverse protection of DC input Short circuit protection DC input insulation against ground monitoring AC output voltage and frequency monitoring Integrated Arc Fault Detection and Interruption Leakage current against ground mo...

Page 10: ...ages The output of the inverter converts the DC voltage to 3 phase AC voltage The high frequency AC components are removed with a wave filter Then the 3 phase AC voltage is passed through two stage relays and EMI wave filter to produce high quality AC power PE Three level inverter N L1 L2 L3 PV1 PV1 PV1 PV1 PV1 PV1 PV1 PV1 DC Switch MPPT1 MPPT2 PV1 PV1 PV2 PV2 AC Output PV Input PV2 PV2 PV2 PV2 PV...

Page 11: ...ch of CPS SCA23 28KTL DO series inverter Main items of the inverter 1 Main housing of the inverter 2 Wiring box of the inverter 3 Mounting bracket 4 External cooling fans 5 LED indication lights 6 LCD display 7 Key buttons 8 DC switch DC power on off 9 AC switch AC power on off ...

Page 12: ...ing of the PV inverter 1 2 Wiring box of the PV inverter 1 3 Mounting bracket 1 Upon which inverter is hung and mounted onto a wall 4 User manual 1 Installation and operation manual 5 Accessory kit 1 Contains all necessary accessories The 5 Accessory kit contains items listed below Table 3 2 Accessories No Item Q ty Note 1 M8 Expansion tubes 8 For mounting bracket 2 M8 25 assembling bolts 8 For mo...

Page 13: ... AC output cables 1 spare part 10 Pre insulated end ferrule 8 For ground cables 11 Pre insulated end ferrule for DC side 20 For DC input cables 4 spare parts 12 RJ45 connecter 4 For RS485 or Ethernet communication 2 spare parts 13 5 pin connector 1 For RS485 communication 14 3 pin connector 1 For dry contact communication 15 Partition plate 1 For partition signal cable and the power cable INSTRUCT...

Page 14: ... the AFCI function from the LCD screen This feature is disabled by default but can be enabled in the field Installation personnel must be qualified electricians or people who have received professional training Sufficient space is provided to allow the inverter cooling system to operate normally Install the inverter away from flammable and explosive substances Avoid installing the inverter in loca...

Page 15: ...mensions of CPS SCA23 28KTL DO series inverter 2 Installation method see Figure 3 2 Make sure that the mounting structure wall rack etc is suitable to support the inverter weight Follow the mounting guidelines below a If the location permits install the inverter vertically ...

Page 16: ...n 15 degrees from horizontal c Do NOT mount the inverter leaning forward d Do NOT mount the inverter in a horizontal position 15 degrees e Do NOT mount the inverter upside down a c d e b Figure 3 2 Mount the inverter correctly NOTICE When the inverter is mounted backward by 15 outdoor shield ...

Page 17: ...should meet the following conditions Figure 3 3 Inverter wall mounting dimensions cover is recommended to be installed above the inverter to avoid direct sunlight NOTICE The spacing between two adjacently mounted inverters should be 500mm 19 7 inches Ensure that the air space around the inverter is well ventilated ...

Page 18: ...n clearance between two inverters needs to be increased when the ambient temperature is higher than 45 INSTRUCTION If the inverter is tilted backward by no lower than 15 from horizontal the bottom clearance distance can be reduced according to specific conditions INSTRUCTION If the inverter is installed in open air on metallic brackets instead of ...

Page 19: ...6 7in 32in 43 3in 20 55in Figure 3 5 Dimensions of holes on the bearing surface 2 Drill holes at the marked positions with a 10mm 0 4in drill and put the M8 expansion tubes into the holes Fasten the mounting bracket with the M8x25 assembling bolts in the accessory kit Tool Electric drill Ф10mm 0 4in head No 13 wrench solid wall the top clearance distance can be reduced to as minimum as 100mm 3 94i...

Page 20: ...s to lift the inverter onto the bracket The minimum angle between the two sling ropes should be less than 90 degrees Manual mounting Two people grab the handle positions marked in Figure 3 8 and mount the inverter onto the bracket CAUTION The main housing of the CPS SCA23 28KTL DO series inverter is about 46 5kg 102 5 pounds Please ensure the mounting is properly installed before hanging the the i...

Page 21: ...21 Figure 3 7 Mount the main housing on the bracket by lifting Figure 3 8 Position of grab handle 4 Install the wiring box Remove the cover plate at the bottom of the main housing see Figure ...

Page 22: ...ng box see Figure 3 10 Figure 3 10 Cover board of the wiring box Save the cover board and screws and fix the board on the left side of the wiring box after the wiring box is attached to the inverter housing see step 6 Figure 3 13 Tool No 2 Phillips head screwdriver Insert the wiring box to the main housing and use M6x12 screws 4pcs ...

Page 23: ...Attach the main housing and the wiring box to the mounting bracket with the M5x10 bolts 6 pcs see Figure 3 12 Tool No 2 Phillips head screwdriver torque value of 1 6N m CAUTION The total weight of the CPS SCA23 28KTL DO series inverter is about 55kg 122 pounds Please ensure the mounting is properly installed before hanging the the inverter on the bracket ...

Page 24: ...g box on the bracket 6 Attach the cover board shown in Figure 3 10 to the left side of the wiring box see Figure 3 13 Tool No 2 Phillips head screwdriver torque value of 1 2N m Figure 3 13 Attach the cover board to the left side of the wiring box ...

Page 25: ...n when the equipment is installed outdoors You can lock the inverter on the bracket as shown in Figure 3 14 Figure 3 14 Location of the anti theft padlock The anti theft padlock should meet the requirement of the dimensions shown in Figure 3 15 B C A Figure 3 15 The dimensions of anti theft padlock Recommended lock size A Ф3 6mm B 20 50mm C 20 50mm ...

Page 26: ... the 4 screws on the cover INSTRUCTION It is important to use a hand tool e g Hex key Allen key socket or T handle 3mm and not power drivers or other types of screw drivers Also it is important to hold the cover in alignment with balanced force across the cover not weighted toward any edge for screw to Pem nut alignment Partially engage all four screws to Pem nuts a few rotations before tightening...

Page 27: ...27 INSTRUCTION We posted on our website www chintpowersystems com under the Service menu a how to video showing the best technique for installing the wire box cover ...

Page 28: ... with options Figure 3 17 External connection ports WARNING High touch current Earth connection essential before connecting supply For more details please see the user manual DC INPUT AC OUTPUT COMM PORT ANTENNA 1 6 2 3 4 7 5 3 8 in 6 2 in 8 5 in 10 9 in 277mm 13 7 in 347mm 15 9 in 405mm 18 7 in 475mm 97mm 157mm 217mm 20 3 in 515mm ...

Page 29: ...de hole for AC output cable 1 1 4 DC input fuse holders AC output terminal block Internal ground connection point grounding studs Choose the cables for inverters according to the following configuration table Table 3 3 Cables specifications Position Cable DC input DC cables specifications refer to Table3 6 AC output L1 L2 L3 N Cable 10 2AWG 8AWG cable recommended PE Cable 10 6AWG 8AWG cable recomm...

Page 30: ...rter n1 n2 n3 n4 n1 n2 n3 n4 Figure 3 19 a Parallel mode Figure 3 19 b Independent mode Table 3 4 DC input power specification Inverter model Max DC input power Rated DC input power of each input section SCA23KTL DO 31kW 15 5kW SCA28KTL DO 38kW 19kW Remarks The standard configuration is Parallel mode If it needs to switch to the Independent mode please take the follow 1 Remove the cover of the wir...

Page 31: ...que value of 1 6N m see Figure 3 20b 4 Set the selector switch on the LCD board see Figure 3 21 to independent mode 5 Reinstall the protection cover see Figure 3 20c Figure 3 20 a Figure 3 20 b Jumper busbar ...

Page 32: ...32 Figure 3 20 c Figure 3 21 Location of the PV connection mode selector switch Communication board PAR IND S401 S402 ON OFF ...

Page 33: ...utput current from the PV strings 4 In order to protect the PV strings the rated current of fuse should NOT be larger than the sum of the Isc of any two of the PV strings Make sure the rated current of fuse is as small as possible on the condition of normal output power The following table lists the fuse type specifications and number under the rated voltage and power range of 8 strings of PV pane...

Page 34: ...on a Confirm the DC configuration referring to Table 3 5 and ensure that the maximum open circuit voltage of the PV modules is lower than 1000 Vdc under any conditions b Confirm that the PV strings for each MPPT of the inverter are of the same type and specification before connection The number orientation and tilt of PV strings may differ for different applications c Configure the external wiring...

Page 35: ... IN2 IN2 PV2 PV2 1 2 3 4 P1 1 2 3 4 P2 1 2 3 4 P3 1 2 3 4 P4 Current 50A 58A DC cable 2AWG Maximum Fuse NA Rare Configuration 2 strings 23kW 28kW 2MPPT Independent Mode Bypass Fuse 1 2 3 4 Inverter IN1 IN1 IN2 IN2 1 2 3 4 1 2 3 4 1 2 3 4 PV1 PV2 PV2 PV1 ...

Page 36: ...nt 25A 29A DC cable 2AWG Maximum Fuse NA Common Configuration 4 strings 23kW 28kW 2MPPT Independent Mode PV1 PV1 PV2 PV2 1 2 3 4 Inverter IN1 IN1 IN2 IN2 1 2 3 4 1 2 3 4 1 2 3 4 1MPPT Parallel Mode PV1 PV1 PV2 PV2 1 2 3 4 Inverter IN1 IN1 IN2 IN2 1 2 3 4 1 2 3 4 1 2 3 4 Current 12 5A 14 5A DC cable 16 6AWG 16 6AWG ...

Page 37: ... IN2 IN2 1 2 3 4 1 2 3 4 1 2 3 4 1MPPT Parallel Mode PV1 PV1 PV2 PV2 1 2 3 4 Inverter IN1 IN1 IN2 IN2 1 2 3 4 1 2 3 4 1 2 3 4 Current 10A 11 6A DC cable 16 6AWG 16 6AWG Common Configuration 6 strings 23kW 28kW 2MPPT Independent Mode PV1 PV1 PV2 PV2 1 2 3 4 Inverter IN1 IN1 IN2 IN2 1 2 3 4 1 2 3 4 1 2 3 4 ...

Page 38: ... 8 4A 9 7A DC cable 16 6AWG 16 6AWG Common Configuration 7 strings 23kW 28kW 1MPPT Parallel Mode PV1 PV1 PV2 PV2 1 2 3 4 Inverter IN1 IN1 IN2 IN2 1 2 3 4 1 2 3 4 1 2 3 4 1MPPT Parallel Mode PV1 PV1 PV2 PV2 1 2 3 4 Inverter IN1 IN1 IN2 IN2 1 2 3 4 1 2 3 4 1 2 3 4 Current 7 2A 8 3A DC cable 16 6AWG 16 6AWG ...

Page 39: ...he temperature rating of the input wirings should be no less than 90 194 Note 2 The recommended fuse types are configured according to the condition that the input strings are the same d Check the polarity Figure 3 22 before plugging the DC connectors with the cables of PV strings according to the following steps i Use a multi meter to measure the PV strings cable ends and check the polarity ii Th...

Page 40: ... recommended to be pre insulated to ensure the cables are well connected Crimp the DC cables with the attached pre insulated end ferrule 16Pcs by using the the crimping pliers see Figure 3 23 Tools Diagonal pliers wire stripping pliers crimping pliers Figure 3 23 Set up the DC input cables g Connect the crimped DC cables to the fuse holders and fasten the screws as shown in Figure 3 24 NOTICE It i...

Page 41: ...between the inverter and the AC grid 1 Use the 3mm 0 12in Hex screwdriver to remove the 4 screws on the wiring box and take off the cover see Figure 3 16 a 2 Knock out the holes of the AC side and plug the suitable conduits of 1 1 4 or 1 inch through the holes Then put the cables through the conduit inside the wiring box 3 The inverter supports 3 kinds of cable connection on the AC side depending ...

Page 42: ...sary tools for cable set up No Tools 1 6mm 0 23in flat screwdriver 2 8mm hex socket wrench 3 Diagonal pliers 4 Wire stripping pliers 5 Crimping pliers Table 3 8Torque value AC output terminal block 3 5 N m Internal grounding bar 1 6 N m Internal grounding stud 1 6 N m External grounding point 1 6 N m ...

Page 43: ...43 Figure 3 26 a AC output and ground cable connection 1 2 3 WARNING High touch current Earth connection essential before connecting supply For more details please see the user manual ANTENNA ...

Page 44: ...are well connected Connect the AC L1 L2 L3 N cables to the terminal block and the ground cable to the grounding bar see the 1 st graph in Figure 3 26 Set up the cables referring to Figure 3 27 1 2 WARNING High touch current Earth connection essential before connecting supply For more details please see the user manual ANTENNA 3 ...

Page 45: ...the 2 nd graph in Figure 3 26 Set up the cables referring to Figure 3 28 Pre insulated end ferrule 4pcs Pre insulated end ferrule Core wire OT type terminal Core wire OT type terminal 1pcs Figure 3 28 AC output and ground cable set up 3 Connect the AC L1 L2 L3 N cables to the terminal block and use the OT type terminal to connect the ground cable to the external grounding point at the bottom of th...

Page 46: ...a 3 pole or a 4 pole AC circuit breaker can be used The maximum breaker size allowed is 50A or 70A A smaller breaker may also be used keeping in mind that a smaller breaker may result in nuisance trips that may need servicing Table 3 9 Specification of AC breaker selection Inverter AC breaker rated current A CPS SCA23KTL DO 50 CPS SCA28KTL DO 70 INSTRUCTION The attached pre insulated end ferrules ...

Page 47: ... description 3 4 PAR IND S401 S402 ON OFF Communication board Partition plate Figure 3 30 Communication board 2 Connectors and communication cards Table 3 10 Communication connection interfaces Item Picture Configuration description Dry contact communic ation port P205 N O N C COM Please see the section after the table for detailed information ...

Page 48: ...hite 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 COM 8 Brown N C RS485 port 5pin connector P208 1 NC 2 NC 3 RS485 4 RS485 5 COM Selector switch for setting the 120Ω terminal resistor of the RS485 communic 1 Disable the termination resistance 2 Enable the terminal resistor ...

Page 49: ...ontact on the communication board available both as contact normally open N O and as contact normally closed N C as shown below N O N C COM Figure 3 31 Dry contact communication port The voltage and current rating of the dry contact shown in the following table must not be exceeded in any case Table 3 11 Rating of dry contact Voltage Current AC Maximum 277 V Maximum 3 A DC Maximum 30 V Maximum 1 A...

Page 50: ...205 N O COM Closed Open P205 N C COM Open Closed Connection Plan You can connect a LED or other loads to indicate the operational status of the inverter as shown in the following figure Figure 3 32 Schematic diagram of dry contact communication COM N C N O COM N C N O COM N C N O Light on in trouble free operational Light on in error Line circuit Breaker 3 A or L N COM N C N O COM N C N O COM N C ...

Page 51: ...act communication cable through the cable conduit and inside the wiring box c Use double layer insulated cables Strip the cables according to the following requirements Tool Wire stripping pliers Figure 3 33 Wire stripping Table 3 13 Cable set up Position Description Value Cable type Double layer insulated cable D Outer diameter 4 5 mm 6 mm A Cross section area of conductor 0 2 mm 0 75 mm L1 Lengt...

Page 52: ...inal Tool 2 or 2 5mm flat screwdriver Figure 3 34 Wire connection e Plug the cable terminal into the P205 connector Figure 3 35 The dry contact communication cable connection No Cable Color Function 1 Red N O 2 Blue N C 3 Green COM ...

Page 53: ...nication UTP CAT 5e or 3x 22 18AWG communication cable eg Belden 3106A 1 2 3 4 IN OUT IN Figure 3 36 RS485 connection 1 Cable connection of RS485 communication RJ45 connector 2 Cable connection of RS485 network communication RJ45 connector 3 Cable connection of RS485 communication 5 pin connector 4 Cable connection of RS485 network communication 5 pin connector ...

Page 54: ... pin connector a Put the communication cable through the conduits inside the wiring box and crimp the cable as shown in Figure 3 37 and Figure 3 38 Tools Wire stripping pliers crimping pliers for RJ45 connector 1 NC 2 NC 3 Red RS485 4 Blue RS485 5 Green COM No Colour 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 COM 8 Brown N C ...

Page 55: ...ogy is recommended for the RS485 network connection as shown in Figure 3 39 And the port RS485 IN should be connected to the port RS485 OUT of other inverter for RJ45 connections Other communication topologies such as the star networks are not recommended Figure 3 39 R485 network connection Reference to Figure 3 36 If there are multiple inverters in the RS485 networking the selector switch S402 of...

Page 56: ...n OFF position Please refer to 3 3 Electrical installation 4 1 3 Electrical check Make sure that the AC circuit breaker is appropriately sized Test whether the AC voltage is within the normal operating range Make sure the DC open circuit voltage of input strings is less than 1000V 4 2 Commissioning steps Complete the checklist above before commissioning the inverter as follows 1 Turn on the AC cir...

Page 57: ...responding grid standard and press ENTER Set Standard Figure 4 1 Set up grid standard 1 VDE 0126 2 VDE 4105 3 G59 2 4 C10 11 5 CEI 0 21 6 IEEE1547 7 BDEW INSTRUCTION Please check with your local electricity supply company before selecting the grid standard If the inverter is operated with a wrong grid standard the electricity supply company may cancel the operation license Putting the inverter int...

Page 58: ...the fault information will show on the LCD screen Please refer to 7 1 2 Troubleshoot LCD faults 7 Set up system time and language Set up the system time and language according to 5 4 4 System configuration 8 To check the real time operation information you can refer to 5 4 1 Operation information 9 The unit ships with the Arc Fault Detection function in the disabled mode by default To enable this ...

Page 59: ... POWER RUN GRID FAULT Figure 5 1 LCD panel Interpretation for the indicator lights is shown in Table 5 1 and function of the keys is shown in Table 5 2 Table 5 1 LED Indication LED light Name Status Indication POWER Working power light Light on Energized control panel starts to work Light off Power supply not working RUN Grid tied Light In grid tied power generation state ...

Page 60: ...upply not working FAULT Fault status indication light Light on Indicates a Fault Slow flash Indicates Alarm light up 0 5s light off 2s Fast flash Protective action light up 0 5s light off 0 5s Light off No fault or power supply not working Table 5 2 Definition of the keys Key Description Definition of function Escape key Back end mute Enter key Confirm entering the menu confirm set value Switch to...

Page 61: ...ower into the grid GRID will light up when the grid is normal during the operation of the inverter Otherwise GRID will blink until the grid restores to normal FAULT will blink quickly as a fault except grid fault occurs FAULT will not light out until the fault is eliminated The light will blink slowly when an alarm occurs FAULT remains illuminated when an internal fault occurs The buzzer will give...

Page 62: ... mode Sys Checking Figure 5 3 Inverter system check ongoing Standby Figure 5 4 Inverter system in standby mode a b Figure 5 5 Default display interface for normal operation 725 V 38 5A 277 27 9 223 2 PV1 08 12 13 10 05 720 V 31 9A 277 22 9 183 7 PV2 08 12 13 10 10 ...

Page 63: ... The default indication interface mainly indicates PV voltage PV current grid voltage instant power daily generated power and time information under normal operation The fault information of the most recent current fault will be indicated on the LCD screen when the inverter is in fault mode 5 4 Menu functions LCD screen displays default indication interface when the inverter is in operation mode P...

Page 64: ...1 Operation information When the cursor moves to 1 OP Info in the main screen you should press ENT to select the operation information as shown in Figure 5 8 Check the information by pressing UP and DOWN Return to the previous menu by pressing ESC 1 OP Info EDay 23 5kWh PDayPk 19kW DayT 12 1 h Uab 400 2V Ubc 400 9V Uca 399 7V Freq 60 0Hz Ia 13 9A Ib 14 1A Ic 13 1A Tmod 78 2C Tamb 50 C Upv 1 360 0V...

Page 65: ...corresponding fault messages will be indicated in 2 Alarm menu in addition to the sound and light alarms Move the cursor to 2 Alarm and press ENT to check out the specific fault information as shown in Figure 5 10 2 Alarm No Alarm EepromErr Protect0010 No Yes Figure 5 10 Alarm failure information 5 4 3 History Move the cursor to 3 History in the main interface Press ENT to check the history inform...

Page 66: ... date is December 15th the LCD will indicate the operation information of 21 days before that date which is November 24th 3 The DSP version LCD version and serial number of the product are listed in 3 Version menu 4 Cumulative generated power from the first day the inverter began working is available to be checked in 4 TotalTag menu 3 History 1 HistErr 2 OP Recd 3 Version 4 TotalTag NoError 1 St20...

Page 67: ...erCmd and 7 NetConfig 1 ON OFF 2 Language 3 Buzzer 4 SysTime 2009 12 15 21 14 中文 English EnglishVer 5 Commun 6 OtherCmd 7 NetConfig ARCOption ARCFaultClear DHCP Enable Disable StaticIP IPAddr 10 122 1 123 SubMask 255 255 255 0 GateWay 10 122 1 254 DNSSer 10 122 0 1 MPPTOption MPPTCycle Min MPPTScan 4 Setting ON OFF ON State KeyBeep Enabled AlarmBeep Disabled Francaise Deutsch EnglishVer Italiano E...

Page 68: ...et up in the same way 4 Set up the system date and time with 4 SysTime menu These parameters are of critical importance and will be used in history information 5 Set the 485 communication parameters with 5 Commun menu 6 There are 5 submenus in the 6OtherCmd menu 1 Arcing check and protection is mainly divided into two parts the Arcing check board is responsible for whether there is Arcing in line ...

Page 69: ...ion Use UP and DOWN to enable disable the MPPTOption function Press ENT to confirm the setting 4 MPPTCycle is used to set up the cycle time of MPPT Scan Move the cursor to this menu press ENT to set up the cycle time Use UP and DOWN to adjust the MPPT cycle time Press ENT to confirm the setting 5 MPPTScan is to execute the MPPT scanning manually Move the cursor to this menu and press ENT to initia...

Page 70: ...and PowerFactor Remote power dispatch The ActivePower and PowerFactor can be adjusted remotely by software 5 4 6 System protection parameters setup Press DOWN and ENT at the same time in the main interface and enter the password UP DOWN UP DOWN to access the system protection parameters setup menu This menu includes 6 submenus 1 SysPara 2 Restart 3 Recover 4 ClrErrRecd and 5 Stdset as shown in Fig...

Page 71: ...on 1 The system protection parameters of each grid standard can be set up in 1 SysPara menu Please refer to Chapter 5 4 7 2 2 Restart menu If a fault shutdown happens a severe fault may have occurred inside the inverter The user can perform a force reboot for one time in this menu if the user needs to restart the inverter INSTRUCTION This function is effective only when the fault IntFault0010 0150...

Page 72: ...ing 1 GridVProtect 2 GridFProtect 3 ON OFF 4 PowerContr 5 LVRTSet and 6 OtherProtect 1 1 GridVProtect and 2 GridFProtect menus Set up the parameters of grid voltage frequency protection and recovery etc as shown in Table 5 3 NOTICE Please don t change the grid standard when the inverter is in normal operation mode or the change is invalid Please refer to the 6 2 Manual shutdown to turn off the inv...

Page 73: ...0 2 00 600 00 GridV Max2 V Threshold value of Level 2 Max grid voltage 200 0 576 0 624 0 VMaxTripT2 S Threshold value of Level 2 Max grid trip voltage 0 0 16 600 00 GridV Min2 V Threshold value of Level 2 Min grid voltage 0 240 0 480 0 VMinTripT2 S Threshold value of Level 2 Min grid trip voltage 0 0 16 600 00 GridVmaxRecT V Recovery threshold value of Max grid voltage 200 0 518 0 533 0 GridVminRe...

Page 74: ...xTripT2 S Trip time of Level 2 Max grid frequency 0 0 05 600 00 GridF Min2 Hz Protection threshold value of Level 2 Min grid frequency 45 00 59 00 60 00 FminTripT2 S Trip time of Level 2 Min grid frequency 0 0 05 600 00 GridFmaxRecT Hz Recovery threshold value of Max grid frequency 49 00 60 40 66 00 GridFminRecT Hz Recovery threshold value of Min grid frequency 45 00 59 40 60 00 GridFRecT S Recove...

Page 75: ...able OffPStep KW S Turn off power step 0 01 1 38 2 00 CPS SCA23KTL 0 01 1 68 2 00 CPS SCA28KTL IsoResis KOhm Isolation resistance 10 0 250 0 1000 0 GridReStep KW S Grid fault recovery step 0 01 0 04 2 00 3 4 PowerContr menu relative functions of active reactive power control and over frequency derating including ActiveContr RePowerContr and FreqDeratCtrl menus 1 ActiveContr menu adjust the active ...

Page 76: ...software if the Dispatch is selected 3 QReactSet Set the Q value Note Change the reactive power by adjusting the Q value reactive compensation 4 PF Set Set the PF value Note Change the reactive power by adjusting the PowerFactor 5 PF P Curve PF curve mode Note The power factor changes according to the power change as shown in Figure 5 16 INSTRUCTION The PF P Curve function is only available for VD...

Page 77: ...ge as shown in Figure 5 17 Figure 5 17 Q U curve mode Capacitive PF 1 1 Inductive PFCurveP1 PFCurvePF1 PFCurveP2 PFCurvePF2 P Capacitive Q _ Inductive QuCurveU2i QuCurveQ2i U V QuCurveU1i QuCurveQ1i QuCurveU1 QuCurveQ1 QuCurveU2 QuCurveQ2 INSTRUCTION The Q U curve function is only available for CEI 0 21 and IEEE 1547 grid standards ...

Page 78: ... See Figure 5 17 PFCurvePF1 0 800 1 000 0 800 See Figure 5 17 PFCurveP2 0 100 0 100 0 See Figure 5 17 PFCurvePF2 0 800 0 900 0 800 See Figure 5 17 PFCurvTripV V 480 0 480 0 528 0 PF curve trip voltage PFCurveReV V 422 4 432 0 480 0 PF curve revocation voltage Q U QuCurveU1 V 480 0 518 4 528 0 See Figure 5 18 QuCurveQ1 100 0 0 0 100 0 See Figure 5 18 QuCurveU2 V 480 0 528 0 528 0 See Figure 5 18 Qu...

Page 79: ...me Description Setup range lower limit default upper limit LeakCurMax mA Leakage current Max limit 0 250 300 IdcMax mA DC component current Max limit 0 135 1000 CPS SCA23KTL 0 165 1000 CPS SCA28KTL 5 4 8 Arcing fault current interruption CPS SCA23 28KTL DO US 480 is embedded with Type 1 DC arcing fault current detection device which stops the inverter from working when arcing fault current is dete...

Page 80: ...ing OtherCmd menu execute the AFCI Test the inverter will stop working and test AFCI When the test is over TestFinish will be displayed on the LCD if no fault is detected or AFCI Fault will be shown if a fault occurs as shown in Figure 5 20 MPPT Scan AFCI Test Testing Figure 5 19 AFCI test MPPT Scan AFCI Test TestFinish AFCI Fault Figure 5 20 AFCI test result ...

Page 81: ...u execute ARCFaultClear command to clear ARC Protect fault alarm and LCD will show Succeed if the fault is successfully cleared as shown in Figure 5 21 AFCIOperation Enable ARCFaultClear Succeed Figure 5 21 Manually clear ARC Protect fault ...

Page 82: ...d the ambient temperature is within allowable operating range 6 2 Shut down Manual shutdown Normally it is not necessary to shutdown the inverter but it can be shut down manually if regulation setting or maintenance is required Move the cursor from the main operation interface to 4 Setting Press ENT and go to submenu 1 ON OFF Move the cursor to OFF and press ENT and then the inverter will be shut ...

Page 83: ...er converts the power generated by PV modules to AC continuously and feeds into the power grid 3 Standby mode as shown in Figure 6 3 The inverter will enter standby mode when the output voltage and power of PV modules do not meet the startup conditions or PV voltage and input power are lower than the set value The inverter will check automatically whether it meets the startup conditions in this mo...

Page 84: ...e 6 4 Fault indication interface 6 4 Grid tied power generation CPS SCA23 28KTL DO US 480 series inverter has an automatic grid tied power generation process It will check constantly whether AC power grid meets the conditions for grid tied power generation and also test whether the WARNING All the installation and wiring connections should be performed by qualified technical personnel Disconnect t...

Page 85: ...ic array output in maximum power point tracking MPPT mode In case of any abnormity the inverter will enter the protection program immediately In low light conditions when power generation is not enough to keep the inverter in operation the inverter will enter standby mode When the voltage of PV array changes and becomes stable and higher than the required set value the inverter will attempt to sta...

Page 86: ...breaker 2 Switch the DC switch to OFF position 3 Check the PV input voltage and polarity The GRID LED is blinking 1 Turn off the external AC breaker 2 Switch the DC switch to OFF position 3 Check whether the grid voltage is normal and whether the cable connection of AC side is correct and secure The RUN LED lights off or FAULT LED lights up Refer to Table 7 2 for troubleshooting 7 1 2 LCD fault an...

Page 87: ...and hardware fault Table 7 2 LCD Troubleshooting table Alarm 1 TempSensorErr Definition Prompt detection of abnormal temperature Possible causes 1 Temperature Sensor socket connecter has poor contact 2 Temperature Sensor is damaged Recommended solutions 1 Observe temperature display 2 Switch off 3 phase working power supply and then reboot the system 3 Contact after sales service personnel 2 CommE...

Page 88: ...for 5 minutes and see whether the alarm will be eliminated automatically 2 Check for foreign objects on fan blades 3 Switch off 3 phase work power supply and then reboot the system 4 Contact after sales service personnel 4 EepromErr Definition Internal alarm Possible causes Internal memory has a problem Recommended solutions 1 Observe for 5 minutes and see whether the alarm will be eliminated auto...

Page 89: ...stallation is appropriate or not 5 Observe for 30 minutes and see whether the alarm will be eliminated automatically 6 Contact after sales service personnel 2 GridV OutLim Definition Grid voltage exceeds the specified range Possible causes 1 Grid voltage is abnormal Power grid breaks down 2 Cable connection between the inverter and the grid is poor Recommended solutions 1 Observe for 10 minutes an...

Page 90: ...be eliminated automatically 2 Check whether the grid frequency is within the specified range 3 Check whether the cable between the inverter and power grid is disconnected or has any fault 4 Contact after sales service personnel 4 PVVoltOver Definition PV voltage exceeds the specified value Possible causes PV over voltage Recommended solutions 1 Observe for 30 minutes and see whether the alarm will...

Page 91: ...ystem leakage current is too high Possible causes 1 Excessive parasitic capacitance on PV module due to environmental factor 2 Grounding is abnormal 3 Internal inverter fault Recommended solutions 1 Observe for 10 minutes and see whether the alarm will be eliminated automatically 2 Detect whether the electrical connection is abnormal 3 Contact after sales service personnel 7 IsolationErr Definitio...

Page 92: ...r the ARC fault Refer to section 5 4 4 2 Check if there is an arc in PV input or the connection of PV cable is not good 2 Contact after sales service personnel 9 Arcboard Err Definition Arcboard error Possible causes Poor contact or damage of Arcboard Recommended solutions 1 Check whether the Arcboard is in good condition 2 Use ARCFaultClear to clear the ARC fault Refer to section 5 4 4 3 Contact ...

Page 93: ...o restart once if it is required by operation and if it is confirmed that there is no other problem 2 Contact after sales service personnel INSTRUCTION The actual display of PV VoltOver is PV1VoltOver or PV2VoltOver The actual display of PV Reverse is PV1Reverse or PV2Reverse DANGER Please disconnect the inverter from AC grid and PV modules before opening the equipment Make sure hazardous high vol...

Page 94: ...re it is not blocked and clean the vent with soft brush or vacuum cleaner if necessary 7 2 3 Replace cooling fans If the internal temperature of the inverter is too high or abnormal noise is heard assuming the air vent is not blocked and is clean it may be necessary to replace the external fans Please refer to Figure 7 1 for replacing the cooling fans 1 Use a No 2 Phillips head screwdriver to take...

Page 95: ...95 1 5 2 4 3 ...

Page 96: ...96 Figure 7 1 Replace cooling fans 50 60mm mm 50 60mm mm 6 ...

Page 97: ...DC switch of the inverter is turned to OFF position Then Replace the inverter according to the following steps a Unlock the padlock if it is installed on the inverter Figure 7 2 Unlock the padlock b Use a No 2 Phillips head screwdriver to unscrew the 2 screws on both sides of the inverter Figure 7 3 Remove the screws on both sides ...

Page 98: ...rom the wiring box Figure 7 4 Disconnect the main housing from the wiring box d Use a No 2 Phillips head screwdriver to remove the 2 screws on the left side of the wiring box and take off the cover board Put the board on the connector of wiring box Torque value 1 2N m Figure 7 5 Install the cover board on the connector of the wiring box ...

Page 99: ...nutes to ensure the internal capacitors have been completely discharged 6 Measure the AC output cable terminal voltage against the ground and make sure the voltage is 0V 7 Disconnect the AC and PE cables referring to 3 3 2 AC and ground connection 8 Disconnect the DC cables referring to 3 3 1 DC connection 9 De install the inverter using reverse of installation steps referring to 3 2 Mechanical in...

Page 100: ... 82A 41A per MPPT 96A 48A per MPPT Number of DC Inputs 8 inputs 4 per MPPT DC Disconnection Type Load rated DC switch AC Output Rated AC Output Power 23kW 28kW Max AC Output Power 23kW 28kW Rated Output Voltage 480Vac Output Voltage Range 2 422 528Vac Grid Connection Type 3Φ N PE Max AC Output Current 27 7A 33 7A Rated Output Frequency 60Hz Output Frequency Range 3 59 3 60 5Hz Power Factor 0 99 0 ...

Page 101: ...orage Temperature Range 22 F to 158 F 30 C to 70 C Operating Humidity 0 95 non condensing Operating Altitude 13123 4ft 4000m derating from 6561 7ft 2000m Display and Communication Display LCD LED Communication Standard RS485 Modbus Mechanical Data Dimensions WxHxD 23 6 39 4 9 1in 600 1000 230mm Weight 122lbs 55kg Orientation 15 90 degrees from horizontal Safety PV Arc Fault Circuit Protection Type...

Page 102: ...40 60 80 100 PV Voltage V Po Pn 300 500 800 900 1000 480 Figure 8 1 SCA23 28KTL derating curve of PV input voltage Note 2 When the ambient temperature is higher than 113 45 the output power begins derating as shown in Figure 8 2 Po Pn Tamb 45 60 100 80 60 40 20 113 140 55 Figure 8 2 SCA23 28KTL derating curve with high temperature ...

Page 103: ... high altitude Note 4 The inverter can output the AC power with full loads under 88 110 of the rated grid voltage When the grid voltage is lower than 88 the output current will be limited within the allowable Max current Figure 8 4 SCA23 28KTL derating curve of grid voltage 2000m 4000m 100 70 6562ft 13123ft 20 40 60 80 100 Grid Voltage Po Pn 0 88 Un 1 1 Un Po Pn ...

Page 104: ... this product is specified in the contract otherwise the warranty period is 5 years For service Chint Power Systems America will provide local support For Warranty terms please refer to the CPS America standard warranty policy in place at time of purchase ...

Page 105: ...28KTL DO US 480 inverter 1 Options 2DC SPD 1 1DC 1 2DC and 1AC SPD 1 1DC and 1AC SPD 1 Zigbee card 1 Ethernet card 1 Bypass input terminalsx2 1 or 2 The following figure shows the wiring box equipped with the optional components Figure A 1 Internal structure of CPS SCA23 28KTL DO inverter with optional components ...

Page 106: ...ar torque value of 1 6N m see Figure A 3 3 Use No 2 Phillips head screwdriver to install the bypass input terminals 2sets or 1set torque value of 1 6N m see Figure A 5 4 Use No 10 wrench to screw DC input cable on the bypass input terminals torque value of 6 0N m see Figure A 6 5 Reinstall the protection cover see Figure A 7 Figure A 2 Figure A 3 ...

Page 107: ...107 Figure A 4 a Figure A 4 b Figure A 5 a ...

Page 108: ...108 Figure A 5 b Figure A 6 ...

Page 109: ...tp www chintpowersystems com SHANGHAI CHINT POWER SYSTEMS CO LTD Headquarters Building 4 No 3255 Sixian Road Songjiang District Shanghai China Tele 86 21 3779 1222 6300 Fax 86 21 3779 1222 6001 Part No 9 0020 0212A0 This manual is subject to change without prior notification Copyright is reserved Duplication of any part of this issue is prohibited without written permission ...

Reviews: