CPS SCH Series Installation And Operation Manual
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CPS SCH Series Installation And Operation Manual

Grid-tied pv inverter
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CPS SCH Series Grid-tied PV Inverter
SCH100KTL-AIO/US-600
and
SCH125KTL-AIO/US-600
Installation and Operation Manual - Rev 1.0
CHINT POWER SYSTEMS AMERICA CO.
REVISON 1.1 MAY 2020

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Summary of Contents for CPS SCH Series

  • Page 1 CPS SCH Series Grid-tied PV Inverter SCH100KTL-AIO/US-600 SCH125KTL-AIO/US-600 Installation and Operation Manual - Rev 1.0 CHINT POWER SYSTEMS AMERICA CO. REVISON 1.1 MAY 2020...
  • Page 3 Revision History Chap/Sec Rev Date Description Number Mar 2020 Initial Release 05/27/2020 Clean-up...

  • Page 4: Table Of Contents

    Table of Contents Before You Start… ................... 1 Chapter 1 IMPORTANT SAFETY INSTRUCTIONS ........2 Chapter 2 Overview .................. 5 2.1 Inverter for Grid-tied PV Systems ..........5 2.2 Product Features ................5 2.3 Product Protection Functions ............6 2.4 Schematic Diagram and Circuit Design .........7 2.6 Anti-islanding Detection..............9 2.7 DC Ground fault Protection ............9 2.8 Surge Suppression ................9...
  • Page 5 Chapter 5 APP Interface ................45 5.1 Overview ..................45 5.2 Main section ................... 45 5.3 Running Data ................. 47 5.4 Settings ..................48 5.4.1 Inverter Parameters ............49 5.4.2 Read/Write Register ............50 5.4.2.1 Commands ..............51 5.4.2.2 Enable/Disable ............... 53 5.4.2.3 Protect ................

  • Page 7: Before You Start

    SCH100KTL-AIO/US-600 and SCH125KTL-AIO/US-600 Utility Grid-tied PV Inverters. Be sure to read this manual carefully before using. Thank you for choosing a CPS Grid-tied PV Inverter. This PV Inverter is a high performance and highly reliable product specifically designed for the North American Solar market.

  • Page 8: Chapter 1 Important Safety Instructions

    Chapter 1 IMPORTANT SAFETY INSTRUCTIONS (SAVE THESE INSTRUCTIONS) Please read this user manual carefully before product installation. CPS reserves the right to refuse warranty claims for equipment damage if the user fails to install the equipment according to the instructions in this manual.
  • Page 9 Markings on the product HIGH VOLTAGE: This inverter works with high voltages. All work on the product must only be performed as described in this document. HOT SURFACE: The equipment is designed to meet international safety standards, but surfaces can become hot during operation. Do not touch the heat sink or peripheral surfaces during or shortly after operation.
  • Page 10 Do not connect the AC output of this equipment directly to any private AC power equipment. CAUTION: CPS SCH100KTL-AIO/US-600 and CPS SCH125KTL-AIO/US-600 inverters are approx. 72kg (158 lbs). Please ensure the mounting bracket is properly installed before hanging the inverter and wire-box on the bracket.

  • Page 11: Chapter 2 Overview

    Chapter 2 Overview 2.1 Inverter for Grid-tied PV Systems CPS SCH100KTL-AIO/US-600 and CPS SCH125KTL-AIO/US-600 3-Phase String Inverters are designed for use with carport, 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 (Figure 2-1).

  • Page 12: Product Protection Functions

    ◆ Long Service Life: Uses thin-film capacitors to extend inverter's service life ◆ High protection degree: NEMA 4X enclosure meets the demanding needs of both indoor and outdoor use. ◆ Intelligent Integration: Integrated load break rated DC disconnect switches, and up to 20 fused string inputs eliminate the need for external combiner boxes, simplifying installation.

  • Page 13: Schematic Diagram And Circuit Design

    2.4 Schematic Diagram and Circuit Design The basic electrical schematic diagram of CPS SCH100KTL-AIO/US-600 and CPS SCH125KTL-AIO/US-600 inverters are shown in Figure 2-2. PV Input Fuse PV1+ PV2+ PV3+ Switch PV4+ PV5+ PV6+ BUS+ PV7+ Output PV8+ Relay LCL Filter...
  • Page 14 2.5 Appearance and Main item Description Figure 2-3 Appearance of the CPS SCH100/125KTL-AIO/US-600 Inverters Main items of the Inverter: 1) Main inverter enclosure 2) LED indicator lights 3) Communication module 4) Cooling fans 5) DC switch: DC power on/off 6) DC Input cable hole...

  • Page 15: Anti-Islanding Detection

    2.6 Anti-islanding Detection The CPS SCH100/125KTL-AIO/US-600 inverters include Anti-Islanding detection as required by UL1741/IEEE1547. The inverter will continuously make bi- directional perturbations to the frequency of the output current by injecting a small amount of reactive power in order to detect a possible islanding condition. If the grid is stable, these small perturbations will have negligible effects on the system voltage frequency.

  • Page 16: Chapter 3 Installation

    Chapter 3 Installation Below is the installation procedure for the SCH100/125KTL-DO/US-600 inverters. Please read carefully and install the products following the step-by-step instructions. The inverter and other main items are shipped in two separate packages, consisting of A: The main inverter enclosure; B: The mounting bracket, user manual and accessory kit.
  • Page 17 Table 3-1 Main Items Item Figure Note Main enclosure of Inverter the PV inverter Bracket upon which Mounting the PV inverter is hung bracket and mounted Quick installation User manual manual Kit contains all necessary hardware Accessory kit and accessories for installation...
  • Page 18 M10 nut with flat gasket and For AC terminal block spring washer For AC terminal (customized for big- M10 big flat gasket hole lug) Connect and commission though CPS Wi-Fi Communication Module Connect Application Hex socket screw Spare (for wiring box cover) INSTRUCTION: The items in the Accessory Kit Table 3-2 above are for the standard configuration.

  • Page 19: Recommendations Before Installation

    3.1 Recommendations before Installation See Chapter 8, Technical Data for specification ranges and limits ✓ Check that the product environmental specifications (protection degree, operating temperature range, humidity and altitude, etc.) meet the requirements of the specific project location. ✓ Make sure that the power grid voltage is within range for the grid standard chosen.

  • Page 20: Mechanical Installation

    42.7in(1085mm) 11.2in(283.5mm) 19.3in(489.5mm) 23.4in(594mm) Figure 3-1 Dimensions of CPS SCH100/125KTL-AIO/US-600 Inverter 2) Installation Method (see Figure 3-2): Make sure that the mounting structure (bearing 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 21 Figure 3-2 Inverter Mounting Options NOTICE: If the installation environment allows, avoiding direct sunlight from the inverter, avoiding direct rain and snow, can extend the life of the inverter (See Figure 3-3). Figure 3-3 Inverter Mounting Suggestion 3) Installation Space Requirement (see Figure 3-4): The distances between the inverters or the surrounding objects should meet the following conditions: NOTICE:...
  • Page 22 Figure 3-4 Inverter Wall Mounting Dimensions NOTICE: The installation clearance between two inverters needs to be enlarged when the ambient temperature is higher than 45°C...
  • Page 23 Figure 3-5 Inverter Pillar Mounting Dimensions INSTRUCTION: If the inverter is installed on a pillar or column (instead of solid wall), the space from the bottom of one inverter to the top of the inverter below may be as small as 39.4in (1000mm). CAUTION Do not mounting the inverter back to back if the inverter are installed on the bracket.
  • Page 24 4) Mounting the Inverter onto the Bracket (1) Mark the position for the 5 holes drilling according to the holes position of the mounting bracket as shown in Figure 3-6 (11.8in.) (11.8in.) (31in.) (15.5in.) (1.5in.) (21.8in.) Figure 3-6 Dimensions of holes on the Bearing Surface...
  • Page 25 (11.8in.) (11.8in.) (1.5in.) (21.8in.) Figure 3-7 Wall brackets Installation (2) A. Lift mounting: Use sling rope or bar (inserted through the holes on the handle) to lift the inverter onto the bracket. The minimum angle between the two sling ropes should be more than 90 degrees. (Figure 3-8).
  • Page 26 Warning hands pinching Figure 3-8 Mount the Main Enclosure on the Bracket by Lifting Sling B. Manual mounting: Three people are needed to properly lift by the handle positions marked in Figure 3-9, and mount the inverter onto the bracket. Figure 3-9 Grab Handle Position...
  • Page 27 (3) Push the enclosure to the predetermined position according to Figure 3- 10 and fix it with M6x18 combination screw (torque: 6 N.m, 52.8 lbf-in) CAUTION: The total weight of the CPS SCH100/125KTL-AIO/US-600 inverter is approx.72kg (158 lbs). Please ensure the mounting is properly installed before hanging the inverter on the bracket.
  • Page 28 (5) Install the WI-FI Module As shown in Figure 3-11、Figure 3-12, Remove the two M4x10 fixing screws on the DB9 connector cover, rotate the DB9 connector cover to expose the connector, and install the Wi-Fi module with the two screws just removed. Pay attention to ensure that the seal remains waterproof.

  • Page 29: Electrical Installation

    3.3 Electrical Installation 3.3.1 Removing the Wiring Box Cover (1) Use a No.3 Philips head screwdriver to remove the 2 screws on the wiring box and remove the cover. (see Figure 3-13) CAUTION: Turn off the Switch before you open the Cover. Figure 3-13 Turn off the Switch and Removing the Wiring Box Cover INSTRUCTION: It is important to use hand tools (e.g.
  • Page 30 CAUTION: The inverters must be installed in accordance with the National Electric Code, NFPA 70, and any local codes or jurisdictions. 3.3.1.1 Waterproof plugs Locations  For more details please see the user manual. WARNING: High touch current . Earth connection essential before connecting supply.
  • Page 31 Figure 3-15 Internal Connection Points ⑤ DC input copper row + ⑥ DC input copper row -. ⑦ L1/L2/L3 of AC terminal (10mm Threaded Stud) N of AC terminals. ⑧ ⑨ Internal grounding The SCH100/125KTL-DO/US-600 Inverter operates with ungrounded arrays ONLY; the PV system requires an equipment grounding conductor.
  • Page 32 Figure 3-16 Internal Grounding Points Table 3-3 Cable Specifications DC Cable Specifications for Standard wire-box Terminal Conductor #12-8AWG (90℃ Cu only) fuse holder connections DC input(﹢/﹣) Cable overall diameter:＜7.3mm AC and Ground Cables specifications Position Conductor L1/L2/L3: 1/0AWG - 500kcmil (75/90 ℃ AL or CU) AC output N: 8AWG - 2AWG (75/90 ℃...
  • Page 33 Table 3-4 Tools Required for Cable termination Tools Remark #2 Phillips head screwdriver DC Cable for wire-box 16mm hex socket wrench AC terminal block(L1-L3) 5mm socket head wrench AC terminal block（N） 10mm hex socket wrench External grounding/bounding 5mm flat screwdriver Internal grounding bar 1.5mm flat screwdriver RS485 communication terminal...

  • Page 34: Ground And Ac Connection

    3.3.2 Ground and AC Connection The following describes how to connect the AC and ground cables between the inverter and the AC grid: 1) Connect the Ground cable as Figure 3-18 2) Remove the waterproof plugs from the AC output of the wiring box and install 2 inch conduit and conduit fittings into the hole.
  • Page 35 Figure 3-18 Ground Cable Connection 37 Max Figure 3-19 AC Output Cable Connection...
  • Page 36 Either 3 poles or 4 poles AC circuit breaker may be selected as per the following recommendation. Selecting a breaker of another size may either result in nuisance tripping or other trouble. Table 3-6 Specification of AC breaker selection AC breaker rated current（A） Inverter CPS SCH125KTL-AIO/US-600 175A CPS SCH100KTL-AIO/US-600 150A NOTICE: Transformer Configurations: 3W Wye and 4W Grounded Wye is recommended.

  • Page 37: Dc Connection

    Note 2: The fuse holders can also accept a 20A, fuse for combined input strings if needed. CPS doesn’t provide these fuses, however does allow customers to replace with appropriate fuses in field.
  • Page 38 WARNING: Use of different fuses or incorrectly sized fuses can cause damage to equipment or create unsafe working conditions. Any damage resulting from incompatible fuses is not covered by warranty. 3) DC Cable Connection To ensure the optimum performance of the inverter, please read the following guidelines before performing any DC connections: (a) Confirm the DC configuration and ensure that the maximum open circuit voltage of the PV modules is lower than 1500Vdc under any conditions;...
  • Page 39 Figure 3-20 Polarity Check (d) Remove the liquid-tight hole plugs from the DC input of the wiring box and install 2-inch conduit and conduit fittings into the holes. Then route the cables through the conduit inside the wiring box. Figure 3-21 connect the DC cable (e): Connect the DC cables to the fuse holders and tighten the screws, as shown in Figure 3.21.

  • Page 40: Communication Connection

    3.3.4 Communication Connection CPS SCH100/125KTL-AIO/US-600 inverters support industry standard Modbus RS485 communication. Communication board description Figure 3-22 Communication Board...
  • Page 41 Connectors and communication cards Table 3-8 Communication Connection Interfaces Item Picture Configuration description 1 -----12V+ 2 -----12VGND ① RS485 (Debug only) 3 -----RS485+ 4 -----RS485- 5 -----COM 1 -----RS485_GND (Common) ② RS485 port 2 -----RS485_B (2+6pin connector) 3-----RS485_A 4 -----RS485_GND (Common) 5-----RS485_B 6-----RS485_A 7 -----12V_GND...
  • Page 42 ② RS485 communication cable connection: Choose the RS485 communication cables according to the following table: Figure 3-23 RS485 Connection 1. Cable connection of RS485 communication: 2+6 pin connectors 2. Cable connection of RS485 network communication: 2+6 pin connectors Communication cable such as (CAT5) or Belden 3106A cable for RS485 2+6 pin connector is preferred.
  • Page 43 RS485 network connection: When the inverters are monitored via the RS485 communication, a unique RS485 address for each inverter can be set up through the APP interface. Up to 32 inverters can be connected together in the RS485 communication network. The daisy-chain topology is recommended for the RS485 network connection, as shown in Figure 3- 26.
  • Page 44 1. Open the inverter wiring box. 2. Bring the communication cables into the wiring box through the provided knockout holes at the bottom. 3. Connect the RS485 wires to the green Phoenix connector ensuring correct polarity and using a shielded twisted pair cable. 4.

  • Page 45: Chapter 4 Commissioning (Via Wireless )

    The inverter settings are accessed through the Chint Connect application. ⚫ and users can download iOS version at Apple store or Android version in Google store named “CPS CONNECT PRO” (Support Android 4.1 and IOS 9.0 or later). 4.2 Commissioning Checklist 4.2.1 Mechanical Installation...

  • Page 46: Electrical Check

    Access Point from the user devices (tablet, smartphone, etc.), connection to the inverter via Wi-Fi . Open the APP (“CPS CONNECT PRO” previously mentioned) Enable the wireless connection on the device which is being used for...
  • Page 47 Please input the password “Password” then set the “grid-code”, PV Link Type, Neutral Line,RS485 and Inverter Clock” as shown in Figure 4-1.
  • Page 48 Figure 4-1 System setting Regulation: Selecting a grid standard INSTRUCTION: Please check with your local electricity supply company before selecting a grid standard. If the inverter is operated with a wrong grid standard, electricity supply company cancel interconnection agreement. Placing the inverter into operation before the overall system complies with the national rules and safety regulations of the application is not permitted.
  • Page 49 When the device screen shows the normal operation status (Figure 4-2) and the “RUN” light on the LED panel is illuminated, this is an indication that the grid connection and power generation are successful. Figure 4-2 Normal Operation Status If the inverter fails to operate normally, the “FAULT” light will illuminate and the fault information will show on the Device screen and you can skip to History check the detail as shown in the Figure 4-3.
  • Page 50 Figure 4-3 Fault Information Interface...

  • Page 51: Chapter 5 App Interface

    Chapter 5 APP Interface 5.1 Overview Choose APP function Setup the product Activate a site Manage my site Wifi Setting Main menu Running Data Settings History Turn ON/OFF Month Year Password: 1111 Alarm Running Status Inverter Parameters Read/Write Register Fault Recording Upgrade Firmware PV Link Type Neutral Line RS485...

  • Page 53: Running Data

    5.3 Running Data In the Running Data sub-menu you can view the Power generation with Current, Day, Month, Year and Total as Following:...

  • Page 54: Settings

    5.4 Settings Choosing the Settings and input the password“1111”as following: In the Settings section it’s possible to access the following sub-menus: ⚫ Inverter Parameters ⚫ Read/Write Register ⚫ Upgrade Firmware...

  • Page 55: Inverter Parameters

    5.4.1 Inverter Parameters In the Inverter Parameters section it’s possible to access the following sub- menus: GridStandard, PV Link Type, Neutral Line, RS 485, Inverter Clock and Change Password as following Figure:...

  • Page 56: Read/Write Register

    5.4.2 Read/Write Register In the Read/Write Register section it’s possible to access the following sub-menus: ⚫ Commands ⚫ Enable/Disable ⚫ Protect ⚫ LVRT/HVRT ⚫ ActivePowerDerating ⚫ ReactivePowerDerating ⚫ Others...

  • Page 57: Commands

    5.4.2.1 Commands In the Read/Write Register section it’s possible to access the following sub- menus: ⚫ Power On/Off ⚫ Force Restart ⚫ Factory Reset ⚫ Auto Test ⚫ MPPT Scan ⚫ “Power On/Off” menu: Manual Turn ON/OFF: Manual Power ON/OFF is required after regulation setting or manual (fault) shut-down.
  • Page 58 “MPPTScan” menu: “MPPTScan” is used to execute the MPPT scanning manually. The device screen will skip to normal operation interface if the MPPT scanning succeeds, or remain on the “MPPTScan menu” interface if the scanning fails. MPPT scan function is used for multi-MPP tracking, and is useful if the PV panels are partly shadowed or installed with different angles.

  • Page 59: Enable/Disable

    5.4.2.2 Enable/Disable Enable/Disable is used for enable or disable the function and protect parameters as following:...
  • Page 61 Table 5-1 The Enable/Disable Parameters (IEEE1547、Rule21 and ISO-NE) Enable/Disable Setup range (lower Setup range (lower Setup range (lower Parameter name Description limit, default & upper limit, default & upper limit, default & upper limit) IEEE1547 limit) Rule-21 limit) ISO-NE Please do not change CtrlParaGroup the parameters, only for {0, 4, 4}...
  • Page 62 Enable/Disable Setup range (lower Setup range (lower Setup range (lower Parameter name Description limit, default & upper limit, default & upper limit, default & upper limit) IEEE1547 limit) Rule-21 limit) ISO-NE Disable or Enable the {Disable, Enable, {Disable, Enable, {Disable, Enable, GFCIStaEn Static ground fault Enable}...

  • Page 63: Protect

    5.4.2.3 Protect This interface is used to display and set the Protect parameters of the AC grid voltage, frequency and recovery, etc as following:...
  • Page 64 Table 5-2 The Protection Parameters (IEEE1547、Rule21 and ISO-NE) Setup range (lower Setup range Setup range limit, default & (lower limit, (lower limit, Parameter name Description upper limit) IEEE- default & upper default & upper 1547 limit)Rule-21 limit) ISO-NE Grid Over Voltage Protection Threshold value of {100.00%, {100.00%,...
  • Page 65 Setup range (lower Setup range Setup range limit, default & (lower limit, (lower limit, Parameter name Description upper limit) IEEE- default & upper default & upper 1547 limit)Rule-21 limit) ISO-NE Grid Over Frequency Protection Setup range (lower Setup range (lower Setup range (lower limit, default &...
  • Page 66 Setup range (lower Setup range Setup range limit, default & (lower limit, (lower limit, Parameter name Description upper limit) IEEE- default & upper default & upper 1547 limit)Rule-21 limit) ISO-NE Recovery Max thresholdgrid FMaxRcov(Hz) {54, 60.3, 66} {54, 60.4, 65} {54, 60.1, 65} Frequency protection...

  • Page 67: Lvrt/Hvrt

    5.4.2.4 LVRT/HVRT Low voltage ride through “LVRT/HVRT” is used to set the LVRT ( High voltage ride through HVRT ( ) parameters as following: → Through Trip Time/S 2 4 6 8 10 12 14 16 18 20 22 Figure 5-2 The LVRT Curve...
  • Page 68 1.25 Through 5，6,7,8 1.15 Trip 1.05 Time/S 2 4 6 8 10 12 14 16 18 20 22 Figure 5-3 The HVRT Curve Table 5-3 LVRT and HVRT Parameters LVRT Setup range (lower Setup range (lower Setup range (lower limit, default & Parameter name Description limit, default &...
  • Page 69 HVRT Setup range Setup range Setup range (lower (lower limit, (lower limit, Parameter name Description limit, default & upper default & upper default & upper limit) IEEE1547 limit) Rule-21 limit) ISO-NE Threshold value of high voltage ride {100%, 125%, 135%} {100%, 125%, {100%, 120%, HVRTVoltPara (1,2)

  • Page 70: Activepowerderating

    5.4.2.5 ActivePowerDerating “ActivePowerDerating” menu is used to set the active power derating parameters including Active Power Derating, Over frequency derating and High temperature frequency derating, etc. The parameters are shown in Table 5-4. Power Present 0.0%~100.0% Settable Grid voltage GridV.Max1 100.00%~135.00% Settable Figure 5-4 Curve of over voltage derating...
  • Page 71 Table 5-4 Power Derating Setup Setup range (lower Setup range (lower Setup range (lower Parameter name Description limit, default & upper limit, default & upper limit, default & upper limit) IEEE1547 limit) Rule-21 limit) ISO-NE The trigger Voltage of OVDeratStart {100%,110%,135%} {100%,110%,135%} {100%,110%,135%}...

  • Page 72: Reactivepowerderating

    5.4.2.6 ReactivePowerDerating “ReactivePowerDerating”manu is used to set the Grid reactive power derating parameters including PF parameters and Qu parameters, etc. The parameters as shown in Table 5-5 Note: The PF and Q value can be adjusted by remote software if the “Remote”...
  • Page 73 (PFCurveP1,PFCurvePF1) Inductive (P%) Capacitive (PFCurveP2,PFCurvePF2) Figure 5-6 PF(P) Curve Mode (3). Q(U) Curve：Q(U) curve mode Note: The reactive compensation changes according to the grid voltage change, as shown in Figure 5-5. INSTRUCTION: The Q(U) curve function is only available for IEEE-1547 grid standards.
  • Page 74 Q/Pn (QuCurveU2i,QuCurveQ2i) Inductive (QuCurveU1s, QuCurveQ1s) V/Vn Capacitive (QuCurveU2s,QuCurveQ2s) Figure 5-7 Q(U) Curve Mode Table 5-5 Parameters of reactive power control (IEEE-1547 、 Rule-21 and ISO-NE) Grid Reactive Power Derating Setup range (lower Setup range (lower Setup range (lower Parameter name Description limit, default &...
  • Page 75 Grid Reactive Power Derating Setup range (lower Setup range (lower Setup range (lower Parameter name Description limit, default & upper limit, default & upper limit, default & upper limit) IEEE1547 limit) Rule-21 limit) ISO-NE Q(v) DYNAMIC VAR SUPPORT Voltage of {100%,107.99%,110% {100%,103.30%,110% {100%,103.30%,110%...

  • Page 76: Others

    5.4.2.7 Others Table 5-6 Other Parameters Setup range (lower limit, Setup range (lower Setup range (lower Parameter name Description default & upper limit) limit, default & upper limit, default & upper IEEE1547 limit) Rule-21 limit) ISO-NE StartDelay Startup delay time (0,5,1200) (0,5,1200) (0,5,1200)
  • Page 77 Setup range (lower limit, Setup range (lower Setup range (lower Parameter name Description default & upper limit) limit, default & upper limit, default & upper IEEE1547 limit) Rule-21 limit) ISO-NE The trigger Voltage HVRTTripVol {100%,110%,135%} {100%,110%,135%} {100%,110%,135%} of HVRT The trigger Voltage LVRTTripVol {70%,80%,100%} {70%,88%,100%}...

  • Page 78: Fault Recording

    5.4.3 Fault Recording The last record can store up 128 fault record in “ Fault Record ” menu. 5.4.4 Firmware Upgrade ⚫ Installer open the APP – Chint Powet Connect and select Firmware.  Make sure the mobile phone can access the Internet. ...
  • Page 79 5.4.4.1 Upgrade the Inverter ⚫ Click Upgrade and connect to LinKIT ⚫ Select the firmware file, enter the password and click Start to upgrade the Inverter.
  • Page 80 5.4.4.2 Upgrade the LinKIT Connect to Chint Power Connect ⚫ ⚫ Click Upgrade to upgrade the linKIT...

  • Page 81: History

    5.5 History There are 2 submenus in the “ History” menu: “Alarm” and “Running Status”.
  • Page 82 5.6 Turn ON/OFF Manual Turn ON/OFF: Manual Power ON/OFF is required after regulation 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 83: Chapter 6 Fault Shutdown And Troubleshooting

    Chapter 6 Fault Shutdown and Troubleshooting 6.1 LED Fault and Troubleshooting LED information of CPS SCH100/125KTL-AIO/US-600: Interpretation for the indicator lights is shown in Table 5-6 Table 5-6 LED Indication LED light Name Status Indication Light PV Energized (control panel starts to...
  • Page 84 Please refer to the definition of LED lights in Table 2-4 and troubleshoot according to Table 6-1: Table 6-1 Troubleshooting of LED Lights LED fault status Solutions Neither the “Power” LED nor the 1. Turn off the external AC breaker LCD screen lights up.

  • Page 85: Fault And Troubleshooting

    6.2 Fault and Troubleshooting The inverter will be shut down automatically if the PV power generation system fails, such as output short circuit, grid overvoltage / undervoltage, grid overfrequency / underfrequency, high environmental temperature or internal malfunction of the machine. The fault information will be displayed on the APP interface.
  • Page 86 Table 6-2 (a) Troubleshooting WARNING CODES Definition: Communication inside inverter fails Possible causes: Terminal block connecters of internal communication wires have poor contact 1.CommErr Recommended solutions: 1.Observe for 5 minutes and see whether the alarm will be eliminated automatically; 2.Switch off 3-phase working power supply and then reboot the system;...
  • Page 87 WARNING CODES Recommended solutions: Warn0050 1.Observe temperature display; 2.Switch off 3-phase working power supply and then reboot (TempSensorE the system; 3.Contact after-sales service personnel Recommended solutions: Warn0100 (AC The alarm is reserved now. The alarms in field can be SPD fault) ignored.
  • Page 88 PROTECTION CODES Protect0180 1. If the inverter can start up, then recalibrate. (The sampling offset 2. If the inverter always report this alarm and can not start of DCI) up, then replace inverter. 1. Raise limit of DCImax (for example, 400mA) to allow inverter more room to adjust in transient condition to cope Protect0170 with imbalance of impedance and voltage between Grid...
  • Page 89 PROTECTION CODES 1. Turn DC Switch OFF PV Reverse 2. Open Fuse holder to isolate PV strings (PV input reverse 3. Use meter to find out which PV string is connected in connection) reverse polarity 4. Correct PV string connection 1.
  • Page 90 FAULT CODES 1.Restart inverter by recycle both AC and DC switches. Wait for 1 minute between OFF and ON for all energy to Fault0060 discharge. (CPLD Fault) 2. If inverter cannot clear fault, replace Control Board or inverter 1.Restart inverter by recycle both AC and DC switches. Fault0020 Wait for 1 minute between OFF and ON for all energy to (Bus over volt...

  • Page 91: Chapter 7 Product Maintenance

    Repair or replace the cables if necessary. 7.1.2 Clean the Air Vent Filter The inverter can become hot during normal operation. CPS SCH100/125KTL-AIO/US-600 uses built in cooling fans to provide sufficient air flow to help in heat dissipation.
  • Page 92 （1） Use a No.2 Phillips head screwdriver to take off the 12 screws on the fan tray.(Figure 7-1.1) （2） Disconnect the waterproof cable connector from cooling fan. (Figure 7-1.2) （3） Use a No.2 Phillips head screwdriver to remove the screws. (Figure 7-1.3) （4）...

  • Page 93: Replace The Inverter

    Figure 7-1 Replace cooling fans 7.1.4 Replace the inverter Please confirm the following things before replacing the inverter: (1) The AC side of inverter is turned off. (2) The DC switch of inverter is turned off. Then replace the inverter according to the following steps: Remove the screws which are connect between the main housing and installation rail, then move out the inverter from the rail.
  • Page 94 Warning hands pinching Figure 7-2 Remove the 2 screws between main housing and rail b) Please refer to Chapter 3.2 Mechanical Installation 4) Mounting the Inverter onto the Bracket of the installation procedure.
  • Page 95 Chapter 8 Technical Data CPS SCH 100KTL- CPS SCH Model Name AIO/US-600 125KTL-AIO/US-600 DC Input Max. PV Power 150kW 187.5kW Max. DC Input Voltage 1500Vdc MPPT Voltage Range 860-1450Vdc MPPT Full Load Operating 870-1300Vdc Voltage Range Start-up DC Input Voltage...
  • Page 96 Display and Communication User Interface and Display LED Indicators, APP Inverter Monitoring Modbus RS485 / PLC Option Site Level Monitoring CPS Flex Gateway (1 per 32 inverters) Modbus Data Mapping SunSpec/CPS Remote Diagnostics / FW Standard with CPS Flex Gateway Upgrade Functions...
  • Page 97 100% 860 900 1300 1450 PV Voltage (V) Figure 8-1 CPS SCH100/125KTL-AIO/US-600 derating curve of PV input voltage When the DC input voltage is higher than 1300V, the inverter begins derating, as shown in Figure 8-1. Po/Pn(%) 100% 2%/℃ Ambient Temperature(℃)
  • Page 98 1.0Un 1.1Un Figure 8-3 CPS SCH100/125KTL-AIO/US-600 Derating Curve of Grid Voltage When the grid Voltage is within 100%~110% of the rated output voltage, the inverter output power may reach 100%. When the grid voltage is lower than 100%, the inverter will limit the AC Output Current and the...

  • Page 99: Chapter 9 Limited Warranty

    The warranty policy of this product is specified in the contract; otherwise, the standard warranty 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 100 CHINT POWER SYSTEMS AMERICA CO., LTD. Address: 1297 N Plano Rd Richardson Texas 75081 Service Hotline: 855-584-7168 Email: AmericaSales@chintpower.com Website: 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: This manual is subject to change without prior notification.

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