background image

locking nut

Figure 5.7 Positive connector compositions

Figure 5.8 Negative connector compositions

Connectors of PV Strings: 

There are positive and negative DC input connectors used, as shown in Figure 5.7 and 

Figure 5.8.

the insulation layer

locking nut

the insulation layer

P

C

1

2

1

2

NOTE

Positive and negative metal connectors are packed with positive and 

negative connectors respectively when shipped out. After unpacking, 

keep the positive and negative ones separate to avoid confusion.

24

CPS SCA-

T Series Inverter

Summary of Contents for CPS SCA-T Series

Page 1: ...CPS SCA T Series Grid tied PV Inverter Version 1 0 Shanghai Chint Power Systems CO LTD CPS SCA30 36KTL T SA Installation and Operation Manual Date 26 09 2019 ...

Page 2: ...mensions 2 4 Working Modes 2 1 1 Function 2 1 2 Model Description 2 3 1 Outline 2 2 1 Grid tied PV Power Systems 4 1 Checking the Outer Packing 4 2 Moving the Inverter 4 3 Identifying the PV Inverter 4 3 1 Nameplate 3 Storage 01 01 02 03 03 03 04 04 04 05 06 06 06 06 06 07 07 09 12 12 11 12 10 Forward 1 Safety Precautions 2 Overview of the Inverter 3 Storage 4 Installation 4 3 2 Compliance and Saf...

Page 3: ...er 7 1 LED Indicator 10 Disposal of the Inverter 11 Technical Specifications 8 1 Routine Maintenance 8 2 The Inverter Troubleshooting 8 3 Removing the Inverter 9 1 Quality Terms 9 2 Liability Waiver 4 5 Support mounting the Inverter 18 18 19 20 20 21 22 23 27 27 31 32 32 33 43 44 38 39 41 42 42 16 5 Electrical Connections 6 System Operation 7 User Interface 8 Maintenance 9 Quality Guarantee 10 Dis...

Page 4: ...nverter in terms of its installation electrical connections operation commissioning maintenance and troubleshooting Please read through the manual carefully before installing and using the inverter and keep the manual well for future reference Application Model Grid tied PV string inverter Intended Audience This user manual is subject to change specific please in kind prevail without prior notice ...

Page 5: ...azardous situation which if not correctly followed could result in equipment failure or property damage Calls attention to important information best practices and tips supplement safety instructions for your better use of the inverter to reduce the waste of resource Mark on the nameplate Reminds operators to refer to the documentation shipped with the inverter The following symbols will be freque...

Page 6: ...remove the anti dismantle label on the inverter s enclosure because it is the basis for product warranty a Ensure there is no electronical connections around ports of the PV inverter before installing b Adequate ventilation must be provided for inverter installation location Mount the inverter in vertical direction and ensure that no object is put on the heat sink affecting the cooling For details...

Page 7: ... procedures of commissioning described in the user manual when commissioning the PV inverter c Do not touch any other parts surface except the DC switch when the PV inverter is operating its partial parts will be extremely hot and can cause burns Before installing the inverter check all electrical ports to ensure no damage and no short circuit Otherwise personal casualty and or fire will occur Whi...

Page 8: ...ences to prevent unauthorized access to the maintenance site c Follow the procedures of maintenance stipulated in the manual strictly d Check the relevant safety and performance of the inverter rectify any faults that may compromise the inverter security performance before restarting the inverter To avoid any other unforeseeable risk contact immediately if CHINT there is any issue found during ope...

Page 9: ...large ground based power stations Generally this series inverters is used to low voltage on grid PV power system as shown in Figure 2 2 The inverter is transformerless Add an isolation transformer before grounding the positive negative terminal of PV modules such as thin film module Do not connect PV modules in parallel to mutiple PV inverters WARNING WARNING 2 Overview of the Inverter 2 1 1 Funct...

Page 10: ...Figure 2 3 Inverter L1 L2 L3 N PE PE Inverter L1 L2 L3 PEN PE Inverter L1 L2 L3 N PE PE TT Inverter L1 L2 L3 N PE PE Figure 2 3 Power grids supported by this series inverters The enclosure dimensions of this series products are shown as Figure 2 4 Figure 2 4 The dimensions of the inverter by front side views unit mm CPS SCA T Series Inverter 2 3 1 Outline 2 3 Outline and Dimensions 855 565 276 5 ...

Page 11: ...COM Indicator 4 Warning Indicator Figure 2 6 The rear view of the inverter Figure 2 5 shows the LED indicator area as follows 1 PV Indicator 1 DC switch 2 Vent valve 3 PV strings connectors 4 Communication interface 5 RS485 6 AC output connectors 7 Fans CPS SCA T Series Inverter Reserved for installing rear panel ...

Page 12: ... operation requirements When the PV inverter is on grid and generates electricity it tracks the maximum power point to maximize the PV String output and converts DC power from PV strings into AC power and feeds the power to the power grid Modes Standby Operating Description The PV inverter switches from standby or operating mode to shutdown mode if detecting a shutdown command And the shutdown com...

Page 13: ...e PV inverter is unpacked Store the PV inverter at a temperature range of 40 to 70 with the relative humidity of 0 to 100 no condensation A maximum of four layers of cartons can be stacked Carton should not be left in a lop sided position or turned upside down Ensure that the inverter be inspected and tested by qualified personnel before use if it has been stored for a long time CPS SCA T Series I...

Page 14: ...ks Do not mount the inverter in areas containing highly flammable materials or gases The mounting location must be inaccessible to unrelated personnel to avoid electrical shock burn CAUTION DANGER If any damage mentioned above is found contact the dealer immediately NOTICE The inverter Rear panel File package DC terminal connector group 30K 10 2 36K 12 2 M6 screws Items Deliverables CPS SCA T Seri...

Page 15: ...ding its nameplate labeled on the side of the inverter The nameplate contains important product information the model information communication technical data and compliance symbols CAUTION After checking the outer packing move the PV inverter to the designated installation position Please handle the device with care to prevent slipping and personal injury during transportation CAUTION CPS SCA T S...

Page 16: ... 心 国 中 质 量 认 证 CPS SCA T Series Inverter 4 3 2 Compliance and Safety Symbols 4 4 Installation Requirements Applies to support mounting installation as described below in detail a To ensure optimum operation and long service life the ambient temperature must be below 50 4 4 1 Determining the Installation Position Basic Requirements Installation Environment Requirements The inverter protection class...

Page 17: ...o not mount the inverter on flammable building materials b The wall must be solid enough to bear the weight of the inverter c Do not install the inverter in a residential area since it will cause noise during operation the front view Awning the lateral view 500 1000 CPS SCA T Series Inverter Carrier Requirements Installation Space Requirements b The inverter must be mounted in a well ventilated en...

Page 18: ...s follows in considering the installation space and heat dissipation Please install them along the same line as shown in Figure 4 4 if sufficient space is available Please install them in stacked mode as shown in Figure 4 5 if there is no sufficient space 600 400 400 600 1000 Figure 4 5 Installation in stacked mode The clearance between multiple inverters must be increased to ensure proper heat di...

Page 19: ...rrect installation will result in the inverter not working properly NOTICE The wrong installation mode Horizontally Upside down Figure 4 8 Drill holes on the wall The correct installation mode CPS SCA T Series Inverter 4 4 2 Installation Mode Requirements 4 5 Support mounting the Inverter Step 1 Drill holes on the wall knock the expansion screw into the wall Remove the flat washer spring washer and...

Page 20: ...l fixed Step3 Ensure that the inverter is locked on the support and an antitheft lock is installed CPS SCA T Series Inverter Step 2 Install the rear panel on the wall using M12 expansion screw after put on the flat washer spring washer and nut respectively and the required torque is 42N m Mount the inverter on the rear panel and keep them aligned with each other After that tighten the screw between ...

Page 21: ...le inverters otherwise circulating current generated by the inverters will lead to operation failure 3 Select Isolation SET on the ChintHome APP and set Input Grounded With TF The requirements of ground cables and OT terminals prepared are as follows Ground cables Outdoor multi core special cables are recommended OT terminal OT 35 50 6 Key parameter Product series code Terminal product series code...

Page 22: ...1 Stripped length unit mm Step 2 Insert the exposed core wires into the crimping areas of the OT terminal and crimp them using hydraulic pliers as shown in Figure 5 2 Figure 5 2 Crimping a cable unit mm 19 CPS SCA T Series Inverter 5 1 2 Wiring Procedures Specification OT35 50 6 Step 3 Remove the ground screws from the ground points secure the PGND cable done by step 1 2 using the ground bolts and...

Page 23: ... otherwise the inverter may not work properly The circuit breaker on the AC side should be connected to only one inverter independently Do not connect one circuit breaker to two or more inverters Do not connect loads between the AC output terminals of the inverter and circuit breaker WARNING WARNING CPS SCA T Series Inverter 5 2 Connecting AC Output Cables AC terminal 5 core outdoor special cable ...

Page 24: ...f 3 N m Step 3 Route the AC output power cable into the locking cap and the AC OUTPUT connector at the inverter bottom and connect the AC cable to L1 L2 L3 N and E on the AC terminal block tighten them using screw driver and the required torque is 12 N m Step 1 Remove an appropriate length of the jacket and insulation layer from the AC output cable Insert the exposed core wires into the crimp area...

Page 25: ...connected with short circuit WARNING PV modules can generate electric energy when exposed to sunlight which may create an electrical shock hazard Therefore make sure to shield them with opaque cloth before connecting the PV modules Before connecting DC input power cables ensure that the DC SWITCH on the inverter is OFF PV Strings connection needs below prerequisites otherwise an electrical shock m...

Page 26: ...thod CPS SCA T Series Inverter Input Route 1 Number of Input Route Inverter model 2 10 9 8 7 6 5 3 4 12 11 30K 36K Not applicable for 30K Connected to any route Connected to routes 2 6 Connected to routes 2 3 4 6 7 8 10 11 13 14 Connected to routes 2 3 4 6 7 10 11 13 14 Connected to routes 2 3 6 7 10 11 13 14 Connected to routes 2 3 6 7 10 11 13 Connected to routes 2 3 6 7 10 13 Connected to route...

Page 27: ...C input connectors used as shown in Figure 5 7 and Figure 5 8 the insulation layer locking nut the insulation layer PC 1 2 1 2 NOTE Positive and negative metal connectors are packed with positive and negative connectors respectively when shipped out After unpacking keep the positive and negative ones separate to avoid confusion 24 CPS SCA T Series Inverter ...

Page 28: ...ive and negative power cables into the metal terminals of the positive and negative connectors respectively and crimp them using a crimping tool as shown in Figure 5 10 Figure 5 10 Crimping a metal connector Step 3 Insert the crimped positive and negative power cables into the corresponding positive and negative connectors until a click sound is heard as shown in Figure 5 11 Figure 5 11 Connecting...

Page 29: ...in Figure 5 13 Figure 5 13 Checking the voltage of every route Strings Step 6 Insert the positive and negative connectors into their corresponding terminals of the Inverter until a click sound is heard as shown in Figure 5 14 Step 7 After connecting the PV strings ensure that all connectors are in position by checking for resistance when a slight pull is applied Figure 5 14 Connecting to the inver...

Page 30: ...s For more details refer to WIFI Product Application Manual You can purchase the WIFI GPRS RS485 communication modules from CHINT WIFI GPRS CHINT HOME User Manual is available from http www chintpower com en RS485 switching module monitors PV inverter s data status through collecting and uploading data to Cloud server For more details refer to RS485 Product Application Manual WIFI GPRS RS485 NOTE ...

Page 31: ...es Inverter If multiple inverters are connected note the following 1 No need for re setting Modbus address and the address can be allocated automatically if V1000 data logger is used Otherwise you need to re set Modbus address manually through the APP if other brand data logger is used For details refer to the APP User Manual 2 Turn RS485 Resistance of the inverter at the end of the chain to ON th...

Page 32: ...n the locking cap Connect RS485 differential positive and negative signal of data logger to terminal 1A and 1B of the inverter and connect terminal 2A and 2B of the inverter to terminal 1A and 1B of another inverter Step 1 Step 2 Step 3 To prevent corrosion apply silica gel or fireproof mud to the terminal or interface after connecting external PGND cables AC cables and RS485 port NOTICE 29 RS485 c...

Page 33: ... as shown in Figure 5 19 Step 3 Figure 5 19 APP homepage setting Extension Key the key located in the top right corner CPS SCA6KTL T History Generating Capacity Maintenance Operating Mo Setting Addresses of multiple inverters in one RS485 BUS can not be duplicated Setting Address 1 Baud Rate 9600 User Enter cloud account The default address is 1 you can revise it if necessary and the recommended v...

Page 34: ...ecurely 7 Waterproof connectors at AC terminals and RS485 ports are plugged with waterproof plugs tightly 8 Covers at AC terminals are tightened 9 Idle terminals are sealed 10 All safety warning symbols are intact and complete on the inverter Table 5 5 Self check items after installation 6 There is no open circuit or short circuit at AC and DC terminals by using multimeter 5 Ground cables are conn...

Page 35: ...ing status it means the inverter is operating well Any query please contact your dealer Step 2 Step 1 Switch off the AC circuit breaker After the inverter powers off the remaining electricity and heat may still cause electrical shock and body burns Please only begin servicing the inverter ten minutes after the power off WARNING NOTE Turn off the DC circuit switch on the inverter CPS SCA T Series I...

Page 36: ...in operation are not yet met Feed in operation The blink times every cycle lasts 30s of the grid indicator present power size and after that the indicator keeps ON When less than 20 rated power blink one time 20 40 rated power blink twice 40 60 rated power blink three times 60 80 rated power blink four times 80 100 rated power blink five times on blink Status 2 Grid Indicator 3 COM Indicator 4 War...

Page 37: ...CPS SCA T Series Inverter 34 ...

Page 38: ... LEDs indicate the operating state of the inverter NOTE Users can view set parameters of the inverter through inverter APP For details about operation please refer to APP User Manual which is available for free from our official website CPS SCA T Series Inverter 35 ...

Page 39: ...Power Temperature E Total E Today 1 Open APP ChintHome click Scanning new devices button 2 Click new device for connection 3 APP display inverter status after connection Inverter parameters can be configured with APP throught bluetooth connection iPhone users can go to APP Store to search ChintHome to download APP Android phone users can scan below QR code to download APP CPS SCA T Series Inverter...

Page 40: ...ers do not arbitrarily change related parameters Setting DC Output AC Output Voltage Voltage A Power Factor Active Power Output Freq Reactive Power Current Current A Line Mode Current power Peak Power Temperature E Total E Today History Basic Setting Date and time IP address 2018 01 09 12 52 22 User Switching user Change user mode ModBus Adress 1 Baud Rate 9600 Protocol Modbus RTU Restart inverter...

Page 41: ...abnormal phenomenon replace the relevant parts Semiannually PV inverter Electrical Connections a AC DC and communication cables are securely connected b PGND cables are securely connected c Cables are intact and there are not wire aging If there is any abnormal phenomenon replace the cable or re connect it CPS SCA T Series Inverter 8 Maintenance 8 1 Routine Maintenance External fans are provided f...

Page 42: ...nected or not or if the grid has a power outage Check the number of PV modules and adjust it if needed PV Under Voltage PV modules input voltage is under the inverter s defaulted protection value 1 When sunlight intensity weakens PV modules voltage decreases No extra action is needed 2 If such phenomena occurs when sunlight intensity does not weaken check if there is short circuit open circuit etc...

Page 43: ...r deteriorated PV Strings Reverse The cables of PV strings are connected reversely during the inverter installation Check whether the cables of PV strings are correctly connected If they are connected reversely reconnect the cables BUS Under Voltage BUS Over Voltage Invert Module Fault BOOST Fault EEPROM Fault Abnormal internal energy control imbalance has been triggered by the PV Strings grid sha...

Page 44: ... preceding alarm through the measures recommended contact your dealer timely Perform the following procedures to remove the inverter Always adhere to the prescribed sequence Step 1 Disconnect all cables from the inverter including communications cables DC input Power cables AC output power cables and PGND cables as shown in Figure 8 1 Figure 8 1 Removing DC input connector When removing DC input c...

Page 45: ... but not restricted to the following earthquake flood fire explosion debris flow etc 4 Operation in adverse environments beyond that described in User Manual 5 Any installation and operation environment beyond the relevant national standards 6 Any installing reconfiguring or using faulty 7 Any revising the product or modifying its software code without authorization 8 Maintenance faulty caused by ...

Page 46: ... environment friendly materials If the inverter service life has expired do NOT discard it with household garbage dispose the inverter in accordance with local environmental laws and regulations 43 CPS SCA T Series Inverter 10 Disposal of the Inverter ...

Page 47: ...ax Number of Inputs 10 3 3 2 2 12 3 3 3 3 MPPT Number Rated Active Power 29 000W 34 500W Max Apparent Power 33 000VA 40 000VA Max Active Power PF 1 33 000W 40 000W Max Output Current 3 83A 3 92A Rated Grid Voltage Grid Voltage Range Rated Grid Frequency Grid Frequency Range THDI DC off sets current Power Factor Range 300V 680V Efficiency Input PV 800V 250V 200V 200V 750V 4 Output Grid 220V 3W N PE...

Page 48: ...elative Humidity Range Max Operating Altitude Noise Dimensions W H D Weight 65Kg 67Kg Display Communication Safety Certification Grid Code Support Protection Support 0 100 Support Support Support DC Type II AC Type II Support Support Common Specs Transformerless IP65 Fan cooling 25 60 Certification IEC62109 1 IEC62109 2 IEEE 1547 IEC 61727 IEC62116 4000m 62dB 855 555 275mm Display Communication Bl...

Page 49: ...al grid standards Remark The preceding technical specifications are subject to change without prior notice It is recommended to add following devices a 15A 1000VDC PV FUSE on the input terminal of every PV string and an overcurrent protection device with specification more than 50A 400VAC on the output terminal CPS SCA T Series Inverter ...

Page 50: ...Tel 86 21 3779 1222 6300 Fax 86 21 3779 1222 6003 Postcode 201614 E mail service cps chint com Add Block 4 3255 Sixian Road SongJiang District Shanghai P R China ...

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