CHNT Power CPS SCH275KTL-DO/EU User Manual
  1. Manuals
  2. Brands
  3. CHNT Power Manuals
  4. Inverter
  5. CPS SCH275KTL-DO/EU
  6. User manual

CHNT Power CPS SCH275KTL-DO/EU User Manual

Grid-tied pv inverter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
User Manual for CPS SCH250/275KTL-DO/EU
ter
Grid-tied PV Inver
Shanghai Chint Power System Co., Ltd.
Version 1.2 May 2023

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CPS SCH275KTL-DO/EU and is the answer not in the manual?

Questions and answers

Related Manuals for CHNT Power CPS SCH275KTL-DO/EU

Summary of Contents for CHNT Power CPS SCH275KTL-DO/EU

  • Page 1 User Manual for CPS SCH250/275KTL-DO/EU Grid-tied PV Inver Shanghai Chint Power System Co., Ltd. Version 1.2 May 2023...

  • Page 2: Table Of Contents

    Table of Contents Table of Contents 0   Preface ....................4   1   IMPORTANT SAFETY INSTRUCTIONS ..........5     Warnings and Symbols in this Document ........5     Markings on the Product ..............6     Safety Precautions of Operating the PV Inverter ......7   2  ...
  • Page 3 Table of Contents   APP Download ................34     APP Setting ................... 34     Overview of App Interface ............. 36     APP Main Menu ................37   6.4.1   Chart Menu ..................38   6.4.2   Setting Menu .................. 39  ...

  • Page 4: Preface

    Preface 0 Preface Thank you for choosing a Chint Grid-tied PV Inverter (hereinafter referred to as “PV Inverter” or “Inverter”) developed by Shanghai Chint Power System Co., Ltd. (hereinafter referred to as "CHINT"). This PV Inverter is a high performance and highly reliable product specially designed for the EU market except North America solar market.

  • Page 5: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS 1 IMPORTANT SAFETY INSTRUCTIONS （SAVE THESE INSTRUCTIONS） PLEASE READ THIS USER MANUAL CAREFULLY BEFORE INSTALLATION AND OPERATION OF THIS PV INVERTER. CPS RESERVES THE RIGHT TO REFUSE WARRANTY CLAIMS FOR EQUIPMENT DAMAGE IF USERS FAIL TO INSTALL THE EQUIPMENT ACCORDING TO THE INSTRUCTIONS IN THIS MANUAL.

  • Page 6: Markings On The Product

    IMPORTANT SAFETY INSTRUCTIONS Markings on the Product Symbols Meanings HIGH VOLTAGE! This equipment works with high voltages. All works on the equipment must only be performed as described in this document. HIGH ENERGY! Risk of electric shock from energy stored in capacitor. Do not remove cover until 5 minutes after disconnecting all sources of supply.

  • Page 7: Safety Precautions Of Operating The Pv Inverter

    IMPORTANT SAFETY INSTRUCTIONS Safety Precautions of Operating the PV Inverter WARNING! All operations and connections shall be performed by professional engineering and technical personnel! To prevent the risk of electric shock during equipment maintenance or installation, please ensure that all DC and AC power has been separated from the equipment, and ensure that the equipment is reliably grounded.

  • Page 8: General Introduction

    General Introduction 2 General Introduction Photovoltaic Grid-tied System CPS SCH250/275KTL-DO/EU series inverters are designed for using with commercial rooftop, and large-scale PV grid-tied systems. The system is generally made up of PV modules, DC power distribution equipment, PV inverter and AC power distribution equipment, as shown in Figure 2-1.
  • Page 9 General Introduction Figure 2-3 Product Appearances of 12MPPT inverters Figure 2-4 Product Appearances of 6 MPPT inverters Name Function Inverter The main device LED Indicator Indicates operation status of the inverter DC Switch Safely cut off DC side power supply DC Terminal Quick plug terminal connector Forced cooling of the inverter...

  • Page 10: Product Protection Functions

    General Introduction Table 2-2 Product Components Product Protection Functions  Short circuit protection  Input to ground insulation resistance monitoring  Output voltage and frequency monitoring  Ground leakage current monitoring  DC component monitoring of output current  Anti-island protection ...

  • Page 11: Mechanical Installation

    Mechanical Installation 3 Mechanical Installation Unpacking for Inspection All the delivery items are shipped in one package, which includes the inverter, mounting bracket, accessory bag and LINKIT module. Before performing installation, check the product for any obvious damages or if the items on the delivery list are complete.

  • Page 12: Installation Precautions

    Mechanical Installation Image Accessories Usage Unlock tool for DC Unlock connector connector M12 Nut M12 Spring washer For AC output terminal M12 Flat washer M12 Big flat washer 6 PIN terminal RS485 communication 2 PIN terminal CAN communication DC Input Male (+) 24(18) PV DC quick connector Connector...

  • Page 13: Installation Requirements

    Mechanical Installation  Sufficient space must be provided to allow the inverter cooling system to operate normally.  The inverter may generate noise during operation, please do not install it in a place that affects daily life.  Install the inverter away from flammable and explosive substances. ...
  • Page 14 Mechanical Installation Figure 3-3a Installation modes Figure 3-3b Installation requirements for inverter racks A: Keep a proper distance between the inverter and the shelter to ensure good ventilation. B: The inverter can be installed at an angle of 75° ~90° while its back shall not be shielded to ensure good ventilation.

  • Page 15: Space Requirements

    Mechanical Installation 3.3.3 Space Requirements The distance between the inverter and surrounding objects should meet the following conditions： Figure 3-4 Installation space requirements Note: The distance between two parallel inverters must be ≥300 mm, and good ventilation should be ensured. If the surroundings are relatively closed, please increase this distance appropriately.
  • Page 16 Mechanical Installation Tools: Electric drill (with Ф12mm drill bit), No. 17 hexagon socket wrench, torque: 230 kgf.cm. Figure 3-6 Install the mounting bracket Hang the inverter host on the wall bracket according to Figure 3-7 & Figure 3-8. (1) Manual hanging: Three people are needed to properly lift the inverter by the handle positions marked in Figure 3-7, and mount the inverter onto the mounting bracket.

  • Page 17: Installation Check

    Mechanical Installation (2) Lift mounting: Screw two M10 lifting eyebolts to the studs at the top of the inverter. Use sling rope or bar (inserted through both lifting eyebolts) to lift the inverter onto the mounting bracket. The minimum angle between the two sling ropes should be less than 90 degrees, as shown in Figure 3-8.

  • Page 18: Electrical Connection

    Electrical Connection 4 Electrical Connection CAUTION! The cables shall be connected in accordance with the National Electrical Code and all other applicable local codes or jurisdictions. Schematic Diagram and Circuit Design The electrical schematic diagram of inverter is as shown in Figure 4-1. PV input goes through the lightning protection circuit and DC EMI filter circuit and then through the previous BOOST circuit to achieve maximum power tracking and boost functions.

  • Page 19: Cable Specification

    Electrical Connection Cable Specification Outer dia. Conductor CSA Cable Type (mm) PV cables that meet 1500V DC cable standard Outdoor copper core wire Phase wire diameter/2 Outdoor four-core copper/ Copper core cable: aluminum wire L1,L2,L3,(N):70~300 AC cable 50~66 Aluminum alloy cable: Outdoor four-core copper/ L1,L2,L3,(N):95~300 aluminum wire...

  • Page 20: External Interfaces And Internal Connection Points

    Electrical Connection External Interfaces and Internal Connection Points You will find the external connection interfaces, internal connection points, as well as their names, positions etc. as shown in figure 4-2 and 4-3 as well as table 4-3. Figure 4-2 External connection interfaces Figure 4-3 Internal Wiring Point Names DC Input quick connector...

  • Page 21: Electrical Cable Connection

    Electrical Connection Electrical Cable Connection NOTICE!  Please read carefully and refer to Chapter 9 Technical Data before wiring.  Before performing any electrical connection, make sure that both DC and AC switches are OFF. Otherwise, fatal injury may be caused by high voltage.

  • Page 22: Ac Wiring

    Electrical Connection Figure 4-5 Grounding Methods 4.5.2 AC Wiring You can find the AC output terminals as shown in the Figure 4-6. Figure 4-6 AC Output Line Connection Perform the AC wiring procedures as follows: Remove an appropriate length of the jacket and insulation layer from the AC output cable.

  • Page 23: Dc Wiring

    Electrical Connection Loosen the locking cap from the AC output watertight cable connector at the bottom of the inverter and remove the plug from the locking cap. 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, and E on the AC terminal block, tighten them using screw driver.
  • Page 24 Electrical Connection WARNING!  Different fuses or incorrectly sized fuses could result in equipment damages or unsafe working conditions.  Any damage resulting from incompatible fuses is not covered by warranty. 4.5.3.2 DC Cable Connection To ensure the optimum performance of the inverter, please read the following guidelines before performing any DC connections: ...
  • Page 25 Electrical Connection Perform cable connection as per the following steps: Remove an appropriate length of the jacket and insulation layer from the DC input cable of PV strings. Figure 4-10 DC Wire stripping Insert the exposed areas of the positive and negative power cables into the metal terminals of the male and female connectors respectively and crimp them using a crimping tool.
  • Page 26 Electrical Connection Measure the cable ends of PV strings using a multimeter. Ensure that the polarities of the DC input power cables are correct. Figure 4-13 Ensure the polarities of the DC cables Insert connectors into the corresponding terminals of the inverter. (a) For 12-MPPT inverter: Insert the positive and negative connectors into their corresponding terminals of the inverter until a "click"...

  • Page 27: Communication Connection

    Electrical Connection Communication Connection 4.6.1 Communication Board Figure 4-15 Communication Board Item names Picture Configuration 1 - RS485_A 2 - RS485_B RS485 port 3 - RS485_GND (Common) 6-pin connector plug 4 - RS485_A 5 - RS485_B 6 - RS485_GND (Common) S201 Selector switch OFF - Disable the terminal resistor...

  • Page 28: Communication Connection

    Electrical Connection 4.6.2 Communication Connection The inverter supports industry standard Modbus RS485, Ethernet, PLC as well as CAN (only available to new communication board) communication modes. We will introduce most commonly used RS485 and CAN communication methods in detail. 4.6.2.1 RS485 and CAN Cable Connection Methods Crimp RS485 communication cables with the help of 6-pin terminal or CAN communication cables with the help of 2-pin terminal according to the following figures:...
  • Page 29 Electrical Connection 4.6.2.2 RS485/CAN Network Connection When the inverters are monitored via the RS485/CAN communication, a unique RS485/CAN address for each inverter can be set up through the APP interface. Up to 32 inverters can be connected in a serial fashion in the RS485/CAN communication network.

  • Page 30: Install The Linkit Module

    Electrical Connection The shield of the individual cables must be open (not connected to ground) on one end – the other end of the shield must be grounded. After completing all the wiring steps, fix the 2 screws on the front cover of the combiner box with a 5mm hex wrench, and lock the front cover.

  • Page 31: Cable Connection Notices For Joints And Seals

    Electrical Connection Cable Connection Notices for Joints and Seals IMPORTANT! Pay attention to the following notices when routing cables and sealing the joints. All the electrical cables and communication cables shall be jointed and sealed properly according to the following requirements to ensure their excellent performance and good water tightness.
  • Page 32 Electrical Connection After tightening the fastening head, watertight sealants shall be applied  on its inner surface and outer surface to avoid loosening or prevent water from entering. Figure 4-23 Apply watertight sealants  Before and after tightening the fastening head, check carefully to ensure the watertight cushion is in good condition, i.e.

  • Page 33: Inverter Commissioning

    Inverter Commissioning 5 Inverter Commissioning WARNING! Please follow the guidelines below before performing any on-grid operation to eliminate possible dangers. Pre-commissioning Checks 5.1.1 Mechanical Installation Perform the following inspections by referring to chapter 3 Mechanical Installation.  Make sure all the mounting brackets are secure. ...

  • Page 34: App Setting And Interface Introduction

    APP Setting and Interface Introduction 6 APP Setting and Interface Introduction APP Download The inverter conducts human-computer interaction through the "Chint Connect" mobile APP. Users can download the iOS version in the Apple store or Android version in the Google store, or directly scan the QR code to download.
  • Page 35 APP Setting and Interface Introduction Choose the suitable user role and touch “Next”. If it is necessary, touch the bottom “APP Setting” to change or user role and then touch the top-right “Save” button to save your changes. Touch “Smart Link” icon to enter “Smart Link” interface and then touch “Next” to enter “Connect to the adapter”...

  • Page 36: Overview Of App Interface

    APP Setting and Interface Introduction Overview of App Interface Figure 6-1 Structure tree of App Interface 36 / 72...

  • Page 37: App Main Menu

    APP Setting and Interface Introduction APP Main Menu In the Main interface, you can access the DC, AC, OTHER and VERSION information as shown below. In addition, you can see the following submenus:  Chart  Setting  Event More ...

  • Page 38: Chart Menu

    APP Setting and Interface Introduction 6.4.1 Chart Menu In the chart sub-menu, you can view the power generation situation at different times, such as Current, Today and Total. These data can also be displayed in Day, Month, Year, shown as below in Figure 6-3. Figure 6-3 power generation situation 38 / 72...

  • Page 39: Setting Menu

    APP Setting and Interface Introduction 6.4.2 Setting Menu Touch the Setting icon and input the password “1111”, you will go to the setting interface. Then it’s possible to access the following sub-menus on the setting interface.  Inverter Parameters  Read/Write Register ...
  • Page 40 APP Setting and Interface Introduction 6.4.2.1 Inverter Parameters Touch the Inverter Parameters tab, you can find the following sub-menus and set the following parameters.  Grid Code  PV Link Type  Neutral Line  RS 485  Inverter Clock ...
  • Page 41 APP Setting and Interface Introduction 6.4.2.2 Read/Write Register In the Read/Write Register interface, you can find the following sub-menus: Protect  LVRT/HVRT   Others  Command  ActivePowerDerating  ReactivePowerDerating  LcdLess Basic Parameters Figure 6-6 Read/Write Register 41 / 72...
  • Page 42 APP Setting and Interface Introduction 6.4.2.2.1 Protect The Protect interface displays the protect parameters of the AC grid voltage, frequency and recovery, etc. In addition, you can find and set the protection levels of over voltage, under voltage, over frequency and under frequency. Figure 6-7 Protection Parameters 42 / 72...
  • Page 43 APP Setting and Interface Introduction 6.4.2.2.2 LVRT/HVRT The LVRT/HVRT interface is used to set the LVRT (Low voltage ride through) and HVRT (High voltage ride through) parameters as shown in the following interfaces: Figure 6-8 LVRT/HVRT interface 43 / 72...
  • Page 44 APP Setting and Interface Introduction You can also see the LVRT Curve in Figure 6-9 and HVRT Curve in Figure 6-10. Figure 6-9 LVRT Curve Figure 6-10 HVRT Curve 44 / 72...
  • Page 45 APP Setting and Interface Introduction 6.4.2.2.3 Others In the others interface, you can find following common parameters shown as below. 45 / 72...
  • Page 46 APP Setting and Interface Introduction Figure 6-11 Others interface 46 / 72...
  • Page 47 APP Setting and Interface Introduction 6.4.2.2.4 Command In the “Command” interface, you can access the following submenus: Figure 6-12 Commands interface  Force Restart: If a fault shutdown happens, a severe fault may have occurred inside the inverter. The user can perform a force reboot for one time per Power on in this menu if the user needs to restart the inverter.
  • Page 48 APP Setting and Interface Introduction The inverter will scan the maximum power point in the MPPT range, according to the following conditions： The total input power is lower than 90% of the active power. Once this MPPT scan function is activated on the device, it will search the maximum power point at a voltage step of 5V in the MPPT range for full load, and retrieve the maximum power point.
  • Page 49 APP Setting and Interface Introduction 6.4.2.2.5 Active Power Derating The ActivePower Derating menu is used to set the active power derating parameters, including Active Power Derating, Over Voltage Derating, Over Frequency Derating, etc. In the “ActivePower Derating” interface, you can access and set the following parameters: Figure 6-13 ActivePower Derating interface 49 / 72...
  • Page 50 APP Setting and Interface Introduction You can see the Curve of over voltage derating in Figure 6-14 and Curve of over frequency derating in Figure 6-15. Figure 6-14 Curve of over voltage derating Figure 6-15 Curve of over frequency derating 50 / 72...
  • Page 51 APP Setting and Interface Introduction 6.4.2.2.6 Reactive Power Derating The ReactivePowerDerating interface is used to set the Grid reactive power derating parameters, including PF parameters and Qu parameters, etc. Figure 6-16 The ReactivePowerDerating interface 51 / 72...
  • Page 52 APP Setting and Interface Introduction Note: The PF and Q value can be adjusted by remote software if the “Remote” is selected. PF Set: Set the PF value. Note: Change the reactive power by adjusting  the power factor.  PF(P) Curve：PF curve mode.
  • Page 53 APP Setting and Interface Introduction 6.4.2.2.7 LcdLess Basic Parameters The LcdLess Basic Parameters interface is used to set the parameters as below. Figure 6-19 LcdLess Basic Parameters interface All these three registers are configured as standard, and all these parameters are read-only, that means you cannot change them randomly.

  • Page 54: Event Menu

    APP Setting and Interface Introduction 6.4.3 Event Menu Touch the Event icon, you can see two options：Current and History. If you select the history option, there are 2 submenus in the History menu: “Warning” and “Running Status”, as shown below. Figure 6-20 Current and History interfaces 54 / 72...

  • Page 55: More Menu

    APP Setting and Interface Introduction 6.4.4 More Menu Figure 6-21 Turn ON/OFF interface Manual Turn ON/OFF: Manual Power ON/OFF is required after Grid  Code setting or manual (fault) shut-down. Touch to submenu “Turn ON/OFF”. Then move the cursor to “Turn ON” to start the inverter, the inverter will start up and operate normally if the start-up condition is met.

  • Page 56: Maintenance And Replace

    Maintenance 7 Maintenance and Replace WARNING!  Before starting any product maintenance, the inverter should be stopped running, the AC circuit breaker connected to the grid and the PV input on the DC side shall be all disconnected, and then wait at least 5 minutes before starting any operation.
  • Page 57 Maintenance Figure 7-1 Remove the fan tray and fan Disconnect the watertight cable connector from cooling fan, as shown in Figure 7-2. Figure 7-2 Disconnect the watertight cable connector Use a No.2 Phillips head screwdriver to remove the 4 screws fixing every fan.

  • Page 58: Replace The Inverter

    Maintenance Place the new cooling fans on the fan tray, and fasten the cable on the fan tray with cable ties. Tools required: No.2 Phillips head screwdriver, torque value: 14~18kgf.cm Reinstall the assembled fans onto the inverter. Tools required: No.2 Phillips head screwdriver, torque value: 16kgf.cm.

  • Page 59: Troubleshooting

    Troubleshooting 8 Troubleshooting LED Indicator Troubleshooting LED display of the inverter is shown as follows： Figure 8-1 LED display of the inverter Indicators and their indications are shown in Table 8-1. LED Icon Name Status Meaning Has working power POWER Working Power Indicator (Green)

  • Page 60: Common Fault And Troubleshooting

    Troubleshooting If the LED light indicates any faults, please perform troubleshooting according to the Table 8-2. LED status Solutions Neither the Power LED nor the  Turn off the external AC breaker. LCD screen lights up.  Switch the DC switch to OFF position. ...
  • Page 61 Troubleshooting eliminated automatically; Switch off 3-phase working power supply and then reboot the system; Contact after-sales service personnel. ExtFanErr Definition: Cooling fan failure by visual check Possible causes: Fan is blocked; Fan service life has expired; Fan socket connecter has poor contact. Recommended solutions: Observe for 5 minutes and see whether the alarm will be eliminated automatically;...
  • Page 62 Troubleshooting Fault Codes Solutions Protect0090 Restart inverter by recycle both AC and DC switches. (Bus over voltage) Wait for 1 minute between OFF and ON for all energy to discharge. If inverter cannot clear fault, replace inverter. Protect0070 Raise limit of IDCmax (for example, 400mA) to allow inverter more room to adjust in transient condition to cope with (Bus imbalance) imbalance of impedance and voltage between Grid phases...
  • Page 63 Troubleshooting If there is no alarm, turn OFF AC switches to disconnect from Grid and add in the next string. Startup inverter again. Continue until you can find the string that triggers the alarm. Trace wirings of faulted string to find any leakage to Earth Ground.
  • Page 64 Troubleshooting discharge. Contact after-sales service personnel. PVVoltOver Measure voltage at DC terminals in wiring box and compare with reading in Measurement menu. PV voltage must be less than 1000V in open circuit condition. If display reading is not within 2% of meter reading, replace inverter.
  • Page 65 Troubleshooting Fault Codes Solutions Fault0130 Restart inverter by recycle both AC and DC switches. (Bus over total Wait for 1 minute between OFF and ON for all energy to voltage) discharge. If inverter cannot clear fault, replace inverter. Fault0110 Raise limit of IDCmax (for example, 400mA) to allow inverter more room to adjust in transient condition to cope with (Bus imbalance) imbalance of impedance and voltage between Grid phases...

  • Page 66: Technical Data

    Technical Data 9 Technical Data Model Name CPS SCH275KTL-DO/EU CPS SCH250KTL-DO/EU DC Input Max DC input voltage 1500Vdc MPPT operating voltage range 500-1450Vdc Start Voltage/Power 550Vdc/500W Rated DC Voltage 1190V Number of MPPT Number of DC Connection Sets per MPPT Max DC Current per MPPT Max.

  • Page 67: Quality Assurance

    Quality Assurance 10 Quality Assurance Liability Exemption Damage during transportation; Operate in an environment beyond the provisions of this manual; Incorrect or inappropriate use of the product (including installation and use); Unauthorized modification of the product or provided software; Ignore the safety warnings and relevant statutory safety regulations contained in the product and documentation;...

  • Page 68: Recycling

    Recycling 11 Recycling Distributors or installers should contact the inverter manufacturer after removing the inverter from the photovoltaic module and follow the instructions. The inverter cannot be disposed of as household waste. When the inverter's service life expires, please dispose of it in accordance with the electrical waste disposal laws applicable to the installation location.

  • Page 69: Appendix

    Appendix 12 Appendix Appendix A: Figure list Figure 2-1 Grid-tied PV system ................. 8   Figure 2-2 Inverter Dimensions ................. 8   Figure 2-3 Product Appearances of 12MPPT inverters ........9   Figure 2-4 Product Appearances of 6 MPPT inverters ........9  ...
  • Page 70 Appendix Figure 4-23 Apply watertight sealants ............. 32   Figure 4-24 Check watertight cushion ............. 32   Figure 6-1 Structure tree of App Interface ............36   Figure 6-2 Main information on Main Interface ..........37   Figure 6-3 power generation situation ............. 38  ...

  • Page 71: Appendix B: Table List

    Appendix Appendix B: Table list Table 2-1 Components of Grid-tied PV system ..........8   Table 2-2 Product Components ............... 10   Table 3-1 Accessories included in accessory bag ........... 12   Table 4-1 cable specifications ................. 19   Table 4-2 Tools Required and Torque Values ..........19  ...
  • Page 72 Contact Information Shanghai Chint Power Systems Co., Ltd. Headquarters: Building 4, No. 3255, Sixian Road, Songjiang District, Shanghai, China Switchboard: +86-21-37791222-866000 Customer Service Hotline: +86-21-37791222-866300 Fax: +86-021-37791222-6001 Website: www.chintpower.com Email: service.cps@chint.com 72 / 72...

This manual is also suitable for:

Cps sch250ktl-do/eu

Table of Contents