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-DO/US-600 and SCH125KTL-DO/US-600
Installation and Operation Manual Rev 1.7
CHINT POWER SYSTEMS AMERICA CO.
REVISON 1.7 DECEMBER 2020

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  • Page 1 CPS SCH Series Grid-tied PV Inverter SCH100KTL-DO/US-600 and SCH125KTL-DO/US-600 Installation and Operation Manual Rev 1.7 CHINT POWER SYSTEMS AMERICA CO. REVISON 1.7 DECEMBER 2020...

  • Page 3: Table Of Contents

    Table of Contents Before You Start… .................. 1 Chapter 1 IMPORTANT SAFETY INSTRUCTIONS ........ 2 Chapter 2 Overview ................6 2.1 Inverter for Grid-tied PV Systems ..........6 2.2 Product Features ................6 2.3 Product Protection Functions ............7 2.4 Smart Inverter Functions ..............7 2.5 Schematic Diagram and Circuit Design ..........

  • Page 5: Before You Start

    SCH100KTL-DO/US-600 and CPS SCH125KTL-DO/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 6: 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 7 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 8 Do not connect the AC output of this equipment directly to any private AC power equipment. CAUTION: CPS SCH100KTL/US-600 and CPS SCH125KTL/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 9 WARNING: The DC Switch is rated to break loads under normal operating conditions. However, a DC short circuit could be hazardous and the following procedures should be followed before turning OFF the DC Switch under fault conditions. If there is a fault and it is safe to access the inverter: 1.

  • Page 10: Chapter 2 Overview

    Chapter 2 Overview 2.1 Inverter for Grid-tied PV Systems CPS SCH100KTL/US-600 and CPS SCH125KTL/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 11: Product Protection Functions

    2.3 Product Protection Functions Reverse polarity protection of DC input  AC and DC Short circuit protection  Anti-islanding protection with bi-directional frequency perturbation  DC Input and AC output over-voltage protection  DC Input over-current protection  DC input insulation against ground monitoring ...

  • Page 12: Schematic Diagram And Circuit Design

    2.5 Schematic Diagram and Circuit Design The basic electrical schematic diagram of CPS SCH100KTL/US-600 and CPS SCH125KTL/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 13: Appearance And Main Item Description

    2.6 Appearance and Main Item Description Inverter with Centralized Wire-box Inverter with Standard Wire-box Figure 2-3 Appearance of the CPS SCH100/125KTL-DO/US-600 Inverters Main items of the Inverter: ① Main inverter enclosure ② Inverter wire-box ③ LED indicator lights ④ WiFi module ⑤...

  • Page 14: Anti-Islanding Detection

    2.7 Anti-islanding Detection The SCH100KTL-DO/US-600 and SCH125KTL-DO/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.

  • Page 15: Chapter 3 Installation

    Chapter 3 Installation Below is the installation procedure for the SCH100KTL-DO/US-600 and SCH 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 wire-box, mounting bracket, user manual and accessory kit.
  • Page 16 Table 3-1 Main Items Item Figure Note Main enclosure of The PV inverter the PV inverter Lifting eye bolts for lift mounting M10 Lifting eye bolt the PV inverter Wire-box will vary depending on the model ordered (Standard Standard wire-box Wire-box of the PV wire-box with integrated DC fuse inverter...
  • Page 17 PV Input busbar wiring (Centralized Wire- lock washer box) M8 nut with flat gasket and spring washer AC terminal connections Enables mobile app interface via CPS WiFi module Connect app INSTRUCTION: The items in the Accessory Kit Table 3-2 above are for the standard configuration.

  • Page 18: 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 19: Mechanical Installation

    3.2 Mechanical Installation (1) Dimensions 100/125kW Standard Wire-box 100/125kW Centralized Wire-box Figure 3-1 Dimensions of CPS SCH100/125KTL-DO/US-600 Inverter...
  • Page 20 (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. (b) If the inverter cannot be mounted vertically, it may be tilted backward to 15 degrees from horizontal.
  • Page 21 (3) Installation Space Requirement (see Figure 3-4a, b, and c): The distances between the inverters or the surrounding objects should meet the following conditions: (A) Minimum Height from the ground (12 Inches minimum): MUST Prevent Water damage in flood prone areas. SHOULD Allow for ease of fan replacement MUST meet NEC 6’...
  • Page 22 OVERHEAD STRUCTURE NOT REQUIRED NOT REQUIRED (F1) (F2) 6" or 12" MINIMUM (C) 6' - 7"MAX (D) 18" MIN 6"MIN 10" 10" (G1) 22" MIN (with) 10" WIRE WAY WIRING WIRING (G2) 18" MIN (without) TROUGH (WITH OR WITHOUT) TROUGH 6"MIN (D) 18"...
  • Page 23 (4) Mounting the Inverter onto the Bracket Tools Required: Electric drill (Ф10mm/0.4in. head), No. 13 wrench, pencil/marker, No.2 Phillips head screwdriver. (1) Mark 6 holes on the wall or bearing surface for attaching the inverter mounting bracket as shown in Figures 3-6a and 3-6b. Figure 3-6a 100/125kW Standard Wire-box Bracket Mounting Pattern...
  • Page 24 Figure 3-6b 100/125kW Centralized Wire-box Bracket Mounting Pattern INSTRUCTION: Before installing the brackets, first connect the left and right wall mounting brackets with 2 PCS M8 flange nuts (See Figure 3-7) (torque 12.5 Nm (110 in-lbs)) 100/125kW Standard Wire-box 100/125kW Centralized Wire-box Figure 3-7 Left and Right Wall Brackets Combination...
  • Page 25 (2) Mounting the Bracket. Tools Required: Electric drill (Ф10mm/0.4in. head), No. 13 wrench. Drill holes at the marked positions with a 10mm (0.4in.) drill and insert the M8 Expansion Anchors ① into the holes; fasten the Mounting Bracket ② with the M8x25 Assembling Bolts ③ in the accessory kit.
  • Page 26 CAUTION: The main enclosure of the CPS SCH100KTL-DO/US-600 and SCH125KTL-DO/US-600 inverters is approx. 55kg (121 pounds). Ensure the mounting bracket is properly installed before hanging the inverter on the bracket. It is recommended to have at least 2 people to mount the inverter due to the weight of the equipment.
  • Page 27 Figure 3-11 Mount the Main Enclosure on the Bracket by Lifting Sling Manual mounting: Two people are needed to properly lift by the handle positions marked in Figure 3-12 and mount the inverter onto the bracket. Figure 3-12 Grab Handle Position...
  • Page 28 After hanging, push the enclosure to the right to its final position (Figure 3-13) and secure with M6x18 combination screw (torque: 6Nm (53 in-lbs)). Figure 3-13 The main Enclosure Position (4) Install the wire box. Tools required: No. 2 Phillips head screwdriver, 13mm hex head wrench.
  • Page 29 Aligning the mark on the wire-box with the bracket (Figure 3-15), hang the wire-box on the right side of the wall bracket. Push the wire-box left to its final position meeting the main inverter enclosure. Figure 3-15 Wire-box Position C. Connect the wire-box to the main enclosure, using the M8 Flanged Nut (4pcs) (torque: 12.5Nm (110.6 in-lbs).
  • Page 30 (5) Storing the connector covers. Tool required: No. 2 phillips head screwdriver. Attach the inverter’s connector cover and wire-box connector cover shown in Figure 3-10 and Figure 3-14 to the top of the inverter and wire-box. (Figure 3-17) Torque value of 1.6N.m (14.2in-lbs.). Figure 3-17 Attach the Cover to the top of the Inverter...
  • Page 31 (6) Install the WiFi Module. Tools required: No.2 Phillips head screwdriver. INSTRUCTION: The WiFi module is required for the commissioning of the inverter. This step does not need to be completed until commissioning. If multiple inverters are connected to the same data network only ONE WiFi module is required.
  • Page 32 (7) Optional Anti-Theft Padlock. The anti-theft padlock is used to prevent the inverter from being stolen when the equipment is installed outdoors. You can lock the inverter on the bracket, as shown in Figure 3-18: Figure 3-18 Location of the Anti-Theft Padlock The anti-theft padlock should meet the requirement of the dimensions shown in Figure 3-19.

  • Page 33: Electrical Installation

    3.3 Electrical Installation 3.3.1 Removing/Replacing the Wire-box Cover Tool required: No.3 Phillips head screwdriver. Tabs hold the left side of the cover in place and it is secured by two screws on the right side. Use a No.3 Philips head screwdriver to remove the 2 screws on the wire-box. Pull the right side of the cover away from the wire-box approximately 1 inch before sliding the cover right to release the tabs.
  • Page 34 3.3.2 Wire-box Details (1) Exterior Wire-box Details ① Knock-outs for DC input (2” Conduit) ② Knock-out for AC output (2” Conduit) ③ External bonding connection point ④ Knock-out for communication output (3/4” Conduit) Side Front NOTE: 2-inch knockouts can be enlarged if the hardware from the larger size does not interfere with the installation of the cover or other components.
  • Page 35 Front Side ① Knock-outs for DC input (2” Conduit) ② Knock-out for AC output (2” Conduit) ③ External bonding connection point ④ Knock-out for communication output Bottom ⑤ (3/4” Conduit) Figure 3-21B Conduit Knock-out Locations (Standard Wire-box)
  • Page 36 (2) Interior Wire-box Details ① Positive DC input connections ② Negative DC input connections ③ AC output terminals ④ Grounding terminals ⑤ Neutral Terminal NOTE: 2-inch knockouts can be enlarged if the hardware from the larger size does not interfere with the installation of the cover or other components.
  • Page 37 Positive DC input connections Negative DC input connections AC output terminals Grounding terminals Neutral Terminal Figure 3-22B Internal Connection Points (Standard Wire-box) Figure 3-23 Internal Grounding Points...
  • Page 38 Table 3-3 Cable Specifications DC Cable Specifications for Standard wire-box Terminal Conductor DC input(﹢/﹣) #12-8AWG Cu Only (90°C fuse holder rating) Standard Wire box Cable overall diameter: ＜7.3mm Cu/Al Conductor size determined by: NEC Calculations, Site Voltage Drop Requirements and DC Terminal Dimensions. DC input(﹢/﹣) See Figures for Centralized Wire-box Version #1 dimensions.
  • Page 39 Centralized Wire-box Ver #1 DC BUS CONNECTION DIMENSIONS (PV-) Centralized Wire-box Ver #1 DC BUS CONNECTION DIMENSIONS (PV+)
  • Page 40 Centralized Wire-box Ver #2 DC BUS CONNECTION DIMENSIONS (PV-) Centralized Wire-box Ver #2 DC BUS CONNECTION DIMENSIONS (PV-)
  • Page 41 Table 3-4 Tools Required for Cable termination Tools Remark #2 Phillips head screwdriver DC Cable for wire-box 13mm/17mm hex socket wrench AC terminal block (L1-L3) 13mm hex socket/5mm hex drive wrench AC terminal block（N） 10mm hex socket wrench External grounding/bounding 5mm flat screwdriver Internal grounding bar 1.5mm flat screwdriver...
  • Page 42 3.3.3 AC and Ground Connection The following describes how to connect the AC and ground cables between the inverter and the AC grid: Connect the Ground cable as shown in Figure 3-21A or 3-21B item 3 - Bond the Inverter to local grounding point – drive ground rod or equivalent.
  • Page 43 Figure 3-25 AC Output Cable Connection (Distributed Wire-box)
  • Page 44 0.95" (24.5) 0.49" (12.5) 0.83"(21) 5/16" – 3/8"(8 - 11.5) HOLE 0.75" Figure 3-26 AC Output Cable Connection (Centralized Wire-box Ver #1)
  • Page 45 Figure 3-27 AC Output Cable Connection (Centralized Wire-box Ver #2)
  • Page 46 NEC calculations. The internal temperature of the AC Panel must be considered and appropriate derate applied to prevent nuisance tripping. Table 3-11 Specification of AC breaker selection Inverter Max AC OCPD CPS SCH100KTL-DO/US-600 200A CPS SCH125KTL-DO/US-600 200A NOTICE: Transformer Configurations: 3W Wye and 4W Grounded Wye is recommended.
  • Page 47 3.3.4 DC Connection DC fuse configuration CPS SCH100/125KTL-US-600 inverters are equipped with 20A DC fuses. Customers must verify that the appropriate fuses are installed depending on the actual configuration of PV strings. Each DC input from the PV strings requires fuse protection.
  • Page 48 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 49 Table 3-13 Tools Required for Conductor Termination Tools Remark PV String connections (Standard wire-box) No. 2 Phillips bit and a PV output conductor connections Torque driver (Centralized wire-box) Diagonal pliers Cut cable Wire stripping pliers Remove jacket Choose the conductor size and material for the inverters according to the following configuration table: Table 3-14 Cable Specifications Terminal...
  • Page 50 3.3.5 Communication Connection CPS SCH100KTL-DO/US-600 and SCH125KTL-DO/US-600 inverters support industry standard SunSpec and Modbus RS485 communication. Below is a description of the components of the communication card and its location in the inverter wire-boxes. Communication board description COMM COMM COMM Figure 3-29 Communication Board ①...
  • Page 51 Table 3-15 Communication Connection Interfaces Item Picture Configuration description  RS485 (Debug Only) Debug Only ② 12V port ③ RS485 port 6 -----RS485_GND (Common) 5 -----RS485_B 4 -----RS485_A 3 -----RS485_GND (Common) (2+6pin connector) 2 -----RS485_B 1 -----RS485_A New Comm Board 2 ----- +12V 1 -----12V_GND ②...
  • Page 52 RS485 communication cable connection ③: Choose the RS485 communication cables according to the following table: Table 3-16 Cables specifications Cable RS485 CAT-5e or 3x 22 - 18AWG communication cable (e.g. communication Belden 3106A) 485_A 485_A 485_B 485_B RS485-2 485_GND 485_GND 485_A 485_A 485_B...
  • Page 53 Figure 3-29b RS485 Connection (old Comm Board 8-pin) 3. Cable connection of RS485 communication (1 inverter): 8 pin connector 4. Cable connection of RS485 network communication (multiple inverters): 8 pin connector It is recommended that industrial grade RS485 cable be used in lieu of unshielded twisted pair.
  • Page 54 RS485 address for each inverter can be set up through the APP interface. Use the CPS Connect app to assign an address to each inverter on the network. Up to 32 inverters can be connected together in the RS485 communication network.
  • Page 55 INSTALLATION PROCEDURE (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) If the inverter is the last Modbus device in the daisy chain, make sure the Modbus termination switch S201 is in the ON position enabling Modbus termination.

  • Page 56: 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 57: Commissioning Steps

    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 58 Figure 4-1 System setting...
  • Page 59 Grid Code: 3 Standard codes are available – IEEE1547, Rule21, ISO-NE. Other SRDs can be implemented by manual configuration of settings. PV Link Type : (N/A – 1 MPPT) Neutral Line Setting : Select if a neutral is connect or not RS485: Choosing communication...
  • Page 60 Figure 4-2 Normal Operation Status (Summary Screen)
  • Page 61 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. Figure 4-3 Fault Information Interface...

  • Page 62: 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 63: Main Section

    5.2 Main section In the MAIN section it’s possible to access the following sub-menus: Running Data  Settings  History  Turn ON/OFF  You can view the main information related the status and the DC,AC, OTHERS and VERSION information in the Main section:...

  • Page 64: 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 65: 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 66 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 67 5.4.2 Read/Write Register In the Read/Write Register section it’s possible to access the following sub-menus: Protect ActivePowerDerating ReactivePowerDerating LVRT/HVRT Others Enable/Disable Commands Back Read/Write Register Prote ct ActivePower Derating ReactivePowe r Derating LVRT/HVRT Others Enable/Disable Command...
  • Page 68 5.4.2.1 Protect This interface is used to display and set the Protect parameters of the AC grid voltage, frequency and recovery, etc as following: Each of the 3 protection levels for OV, UV, OF and UF can be independently disabled. The function in Table 5.7.
  • Page 69 Table 5-1 The Protection Parameters (IEEE1547, Rule21 and ISO-NE) Grid code Grid code Grid code Parameter name Description Range IEEE-1547 RULE-21 ISO-NE Grid Over Voltage Protection (Table 5.7 (13-15)) Threshold Level 1 GridVoltMax1 {100.00%,135.00%} 110.00% 110.00% 110.00% Max. grid voltage Trip Time Level 1 VoltMaxTripTime1(S) {0, 655}...
  • Page 70 Table 5-1 The Protection Parameters (Continued) Grid code Grid code Grid code Parameter name Description Range IEEE-1547 RULE-21 ISO-NE Grid Over Frequency Protection (Table 5.7 (19-21)) Threshold Level 1 Max. GridF.Max1 {60, 66} {60.5} {60.5} {61.2} grid frequency Trip time of Level 1 Max. FMaxTripTime1(S）...
  • Page 71 Table 5-1a Parameter Grid code Grid code Grid code Description Range name IEEE-1547 RULE-21 ISO-NE MOVING AVERAG PARAMETERS (Table 5.7 (25, 26)) Threshold max move VMaxMovAvg {100.00%,135.00%} {110.00%} {110.00%} {110.00%} average Voltage Trip time of max move VMaxMovAvgT {0, 655} {600} {600} {600}...
  • Page 72 5.4.2.2 Active Power Derating “Active Power Derating” 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 5-2. To make permanent changes to these settings either on-site or via the Flex Gateway Portal, the Active Power Mode in Table 5.7 (3) must be set to ”Local Control”.
  • Page 73 Table 5-2 Active Power Derating Setup Grid code Grid code Grid code Parameter name Description Range IEEE-1547 RULE-21 ISO-NE OVER-VOLTAGE DERATE (Table 5-7 (34) to Enable) The trigger Voltage of OVDeratStart {100%, 135%} {110%} {110%} {110%} Overvoltage derating Rate of Overvoltage OVDeratRate {0%, 100%} {0%}...
  • Page 74 5.4.2.3 Reactive Power Derating “Reactive Power Derating” menu is used to set the Grid reactive power derating parameters including PF parameters and Q(u) parameters, etc. The parameters as shown in Table 5-5. These functions are enabled according to the mode selected in Table 5-7 (2).
  • Page 75 (PFCurveP1,PFCurvePF1) Inductive (P%) Capacitive (PFCurveP2,PFCurvePF2) Figure 5-4 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. Q/Pn (QuCurveU2i, QuCurveQ2i)
  • Page 76 Table 5-3 Parameters of reactive power control (IEEE-1547, Rule-21 and ISO-NE) Grid Reactive Power Derating Grid code Grid code Grid code Parameter name Description Range IEEE-1547 RULE-21 ISO-NE FIXED POWER FACTOR Local Power Factor PF_Local {-1, 1} { -0.95} Setting PF(P) POWER FACTOR VS.
  • Page 77 5.4.2.4 ARC The ARC Fault detection parameters should ONLY be adjusted by CPS or Qualified representative. Enabled by Table 5-6 (5, 6). Arc Fault is not an operational function for the 100/125kW Inverters.
  • Page 78 5.4.2.5 LVRT/HVRT Low voltage ride-through “LVRT/HVRT” is used to set the LVRT ( ) and HVRT High voltage ride-through ) parameters as following: These functions are enabled with settings in Table 5.7-9 and 5.7-10.
  • Page 79 → Through * r a Trip Time/S 2 4 6 8 10 12 14 16 18 20 22 Figure 5-6 The LVRT Curve 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 5-7 The HVRT Curve...
  • Page 80 Table 5-4 LVRT and HVRT Parameters LVRT (Enable Table 5.7 - 9) Grid code Grid code Grid code Parameter name Description Range IEEE-1547 RULE-21 ISO-NE LVRTVoltPara Threshold LVRT {0%, 100 -%} {0%} {0%} {0%} (1,2) or 2 point) {0%, 100%} {0%} {0%} {0%}...
  • Page 81 5.4.2.6 Others The REF column is reference to Table 5-7 Enable functions.
  • Page 82 Table 5-5 Other Parameters Grid code Grid code Grid code Parameter name Description Range IEEE-1547 RULE-21 ISO-NE StartDelay (s) Startup delay time (0,1200) PVStartVolt(V) PV start-up voltage (860,950) (900) (900) (900) PVPowerMutate Increasing Irradiation {0.01%, 10%} {5.00%} {5.00%} {5.00%} Ratio (HECO) Power Ramp Rate GridFaultPStaStep Pwr Ramp after Fault...
  • Page 83 5.4.2.7 Enable/Disable Enable/Disable is used to enable or disable the function and protect parameters as following:...
  • Page 84 Table 5-6 The Enable/Disable Parameters (IEEE1547, Rule21 and ISO-NE) Grid code Grid code Grid code Parameter name Description Range IEEE-1547 RULE-21 ISO-NE Control Loop CtrlParaGroup {0,1,2,3,4} Parameters Disable Dispatch Remote Dispatch CtrMode Reactive power Local Q {Disable} {Disable} {Disable} mode Locat PF ReactivePwMode PF(P)
  • Page 85 Grid code Grid code Grid code Parameter name Description Range IEEE-1547 RULE-21 ISO-NE Moving Avg Function VMaxMovAvgEn {Disable, Enable} {Disable} {Disable} {Disable} VMinMovAvgEn Moving Avg Function {Disable, Enable} {Disable} {Disable} {Disable} GFCIStaEn Static GFCI {Disable, Enable} {Enable} {Enable} {Enable} GFCIDynEn Dynamic GFCI {Disable, Enable} {Disable}...
  • Page 86 5.4.2.8 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 87 “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 88 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 Power Connect and select Firmware.  Make sure the mobile phone can access the Internet. ...
  • Page 89 INTERNET CONNECTION Firmware released to Cloud Firmware downloaded in-Pocket. WiFi to Inverter...
  • Page 90 WiFi to Inverter...
  • Page 91 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. WiFi to Inverter 5.4.4.2 Upgrade the LinKIT Connect to Chint Power Connect  Click Upgrade to upgrade the linKIT ...

  • Page 93: History

    5.5 History There are 2 submenus in the “ History” menu: “Alarm” and “Running Status”.
  • Page 94 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 95: Chapter 6 Fault Shutdown And Troubleshooting

    Chapter 6 Fault Shutdown and Troubleshooting 6.1 LED Fault and Troubleshooting The inverters have four LED lights on the front of the units. Table 6-1 describes the lights during operation. Table 6-1 Description of LED Light Indicators LED light Name Status Indication Light...
  • Page 96 Table 6-2 Troubleshooting of LED Lights LED fault status Solutions Turn off the external AC breaker The Power LED does Switch the DC switch to “OFF” position not light up. Check the PV input voltage and polarity Turn off the external AC breaker Switch the DC switch to “OFF”...

  • Page 97: 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 98 Table 6-3 Troubleshooting Alarm Codes ALARM CODES Definition: Communication inside inverter fails Possible causes: Terminal block connecters of internal communication wires have poor contact Recommended solutions: 1.CommErr Observe for 5 minutes and see whether the alarm will be eliminated automatically; Switch off 3-phase working power supply and then reboot the system;...
  • Page 99 Table 6-4 Troubleshooting Warning Codes WARNING CODES Definition: Internal alarm Recommended solutions: Warn0030 Observe for 5 minutes and see whether the alarm will (EepromErr) be eliminated automatically; Contact after-sales service personnel. Recommended solutions: Warn0040 The alarm is reserved now. The alarms in field can be (DC SPD fault) ignored.
  • Page 100 Table 6-5 Troubleshooting Protection Codes PROTECTION CODES Recommended solutions: Restart inverter by recycle both AC and DC switches. Protect0090 Wait for 1 minute between OFF and ON for all energy to (Bus over voltage) discharge. If inverter cannot clear fault, replace inverter. Recommended solutions: 1.
  • Page 101 PROTECTION CODES start up, then replace inverter. Recommended solutions: 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 (DCI high) phases.
  • Page 102 PROTECTION CODES Recommended solutions: Protect0100 1. Restart inverter by recycling both AC and DC switches. Wait (The sensor fault for 1 minute between OFF and ON for all energy to of leakage current) discharge. 2. If not cleared, replace Filter board or inverter. Recommended solutions: 1.
  • Page 103 Table 6-6 Troubleshooting Fault Codes FAULT CODES Recommended solutions: 1. Restart inverter by recycle both AC and DC Fault0130 switches. Wait for 1 minute between OFF and (Bus over total voltage) ON for all energy to discharge. 2. If inverter cannot clear fault, replace inverter. Recommended solutions: 1.
  • Page 104 FAULT CODES Recommended solutions: 1. Restart inverter by recycling both AC and DC Fault0060 switches. Wait for 1 minute between OFF and (CPLD Fault) ON for all energy to discharge. 2. If inverter cannot clear fault, replace Control Board or inverter. Recommended solutions: 1.

  • Page 105: Chapter 7 Product Maintenance

    Chapter 7 Product Maintenance 7.1 GENERAL MAINTENANCE To ensure optimal performance keep the Air Inlets Clean. Check the heat sink for debris using a flashlight though the fan inlets. Clogged heat-sinks will cause the fan duty-cycle to increase and reduce the life expectancy of the fans.
  • Page 106 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-US-600 uses built in cooling fans to provide sufficient air flow to help in heat dissipation.
  • Page 107 (4) Attached the new cooling fans on the fan tray and fasten the cable on the fan tray with cable ties. Torque value: 1.6 Nm (14.2 in-lbs) (5) Install the assembled fans back to the inverter. Torque value: 1.6 Nm (14.2 in-lbs) Figure 7-1 Replace cooling fans...
  • Page 108 7.4 Replace the Inverter Confirm the following steps before replacing the inverter: (1) The AC breaker of inverter is turned off. (2) The DC switch of inverter is turned off. Replace the inverter according to the following steps: Unlock the padlock if it is installed on the inverter. Figure 7-2 Unlock the Padlock (2) Use a No.
  • Page 109 Figure 7-3 Remove the screws on both sides (3) Use a 13mm hex head wrench to remove the 4 screws between the main inverter enclosure and the wire-box. Slide the wire-box right to disconnect the inverter from the wire-box. Figure 7-4 Disconnect the main housing from the wire-box...
  • Page 110 (4) Remove the screws connecting the inverter enclousure and installation rail, then slide the inverter enclousure left on the rail to remove. Figure 7-5 Remove the 2 screws between main housing and rail (5) Use a No. 2 phillips head screwdriver to install the connector covers on the connector of the wire-box and inverter.

  • Page 111: Chapter 8 Technical Data

    Chapter 8 Technical Data (for Reference Only – Refer to Datasheet on website for latest information) SCH100KTL-US-600 SCH125KTL-US-600 DC Input – UNGROUNDED ARRAY Max. PV Power 187.5kW 187.5kW Max. DC Input Voltage 1500Vdc MPPT Voltage Range 860-1450Vdc MPPT Full Load Range 870-1300Vdc Start-up DC Input Voltage 900V...
  • Page 112 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 113 Po/Pn（%） 100% 860 900 1300 1450 PV Voltage (V) Figure 8-1 CPS SCH100/125KTL-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.
  • Page 114 Po/Pn(%) 100% 2%/℃ Ambient Temperature(℃) Figure 8-2 CPS SCH100/125KTL-US-600 Derating Curve with High Temperature When the ambient temperature is higher than 113℉/ 45℃, the inverter output power will begin to derate, as shown in Figure 8-2.
  • Page 115 1.0Un 1.1Un Figure 8-3 CPS SCH100/125KTL-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 output power will...

  • Page 116: 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. CHINT POWER SYSTEMS AMERICA CO., LTD.

This manual is also suitable for:

Sch100ktl-do-600Sch100ktl-us-600Sch125ktl-do-600Sch125ktl-us-600

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