Chint Power CPS SCH Series Installation And Operation Manual
  1. Manuals
  2. Brands
  3. Chint Power Manuals
  4. Inverter
  5. CPS SCH Series
  6. Installation and operation manual

Chint Power CPS SCH Series Installation And Operation Manual

Grid-tied pv inverter
Hide thumbs
Table of Contents

Advertisement

Quick Links

CPS SCH Series Grid-tied PV Inverter
SCH100KTL-DO/US-600, SCH125KTL-DO/US-600
and
SCH100KTL-DO/US-480
Installation and Operation Manual Rev 1.8
CHINT POWER SYSTEMS AMERICA CO.
REVISON 1.8 AUGUST 2021

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CPS SCH Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Chint Power CPS SCH Series

Summary of Contents for Chint Power CPS SCH Series

  • Page 1 CPS SCH Series Grid-tied PV Inverter SCH100KTL-DO/US-600, SCH125KTL-DO/US-600 SCH100KTL-DO/US-480 Installation and Operation Manual Rev 1.8 CHINT POWER SYSTEMS AMERICA CO. REVISON 1.8 AUGUST 2021...

  • 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

    Before You Start… This Installation and Operation manual contains important information, safety guidelines, detailed planning and setup information for installation, as well as information about configuring, operating and troubleshooting the CPS SCH100KTL-DO/US-600, CPS SCH125KTL-DO/US-600 and SCH100KTL- DO/US-480 Utility Grid-tied PV Inverters. Be sure to read this manual carefully before using.

  • 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. Failure to follow these instructions and other relevant safety procedures may result in voiding of the warranty and/or damage to the inverter or other property!
  • 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 DANGER: Please disconnect the inverter from AC grid and PV modules before opening the equipment. Make sure hazardous high voltage and energy inside the equipment has been discharged. Do not operate or maintain the inverter until at least 5 minutes after disconnecting all sources from DC and AC sides.
  • 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 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-DO/US-600, CPS SCH125KTL-DO/US-600 and CPS SCH100KTL-DO/US-480 inverters are shown in Figure 2-2. Fuse PV Input PV1+ PV2+ PV3+ Switch PV4+ PV5+ PV6+ BUS+ PV7+ PV8+ LCL Filter Relay Switch Output...

  • 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 and SCH 100KTL- DO/US-480 Inverters Main items of the Inverter: ① Main inverter enclosure ② Inverter wire-box ③ LED indicator lights ④...

  • Page 14: Anti-Islanding Detection

    2.7 Anti-islanding Detection The SCH100KTL-DO/US-600, SCH125KTL-DO/US-600 and SCH100KTL- DO/US-480 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 15: Chapter 3 Installation

    Chapter 3 Installation Below is the installation procedure for the SCH100KTL-DO/US-600, SCH 125KTL-DO/US-600 and SCH100KTL-DO/US-480 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 The Accessory kit (5) contains items listed below: Table 3-2 Accessory Kit Item Note 6-pin PCB connector plug For RS485 communication 2-pin PCB connector plug For power supply M8x25mm machine bolts with integrated For mounting backet installation lock washer 4 for inverter and mounting bracket; 1 for M6x18mm Phillips screw Ground connection To connect the left and right wall bracket,...

  • Page 17: 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 18: 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 and CPS SCH100KTL-DO/US-480 Inverter...
  • Page 19 (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 20 (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 21 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 22 (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 23 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 24 (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 25 CAUTION: The main enclosure of the CPS SCH100KTL-DO/US-600, SCH125KTL-DO/US-600 and SCH100KTL-DO/US-480 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. (3) Install the Main Inverter Enclosure.
  • Page 26 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 27 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 28 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 29 D. Tighten the M8 nuts following the following order 1→2→3→4 and repeat to confirm that all the nuts are tightened securely. (Figure 3-17) Figure 3-17 Tighten the M8 nuts CAUTION! The total weight of the inverter is approx.80kg (176 pounds). Please ensure the mounting is properly installed before hanging the inverter on the bracket.
  • 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 NOTICE! Cover and screws may be required for servicing in the future.
  • 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 Side Front Figure 3-21A Conduit Knock-out Locations (Centralized Wire-box)
  • 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 DC Cable for wire-box #2 Phillips head screwdriver 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) – 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 When the output of the inverter is connected to the grid, an external AC circuit breaker is required to be installed to safely disconnect the inverter from the grid should an overcurrent event occur. The minimum size breaker is determined by NEC calculations. The internal temperature of the AC Panel must be considered and appropriate derate applied to prevent nuisance tripping.
  • Page 47 3.3.4 DC Connection DC fuse configuration CPS SCH100/125KTL-US-600 and SCH100KTL-DO/US-480 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. The rated voltage of the fuse should be 1500Vdc.
  • 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 CPS SCH100KTL-DO/US-600, SCH125KTL-DO/US-600 and SCH100KTL- DO/US-480 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 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 6 -----RS485_GND (Common) 5 -----RS485_B ③ RS485 port 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 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. 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)

    Chapter 4 Commissioning (Via Wireless) WARNING: Please follow the guidelines below before on-grid operation to eliminate possible dangers to ensure safety. 4.1 APP Download ⚫ The inverter settings are accessed through the CPS Connect Pro application and users can download iOS version at Apple store or Android version in Google store named “CPS Connect Pro”...

  • Page 57: Commissioning Steps

    4.3 Commissioning Steps Complete the checklist above before commissioning the inverter as follows: 1.) Turn on the AC circuit breaker. 2.) Turn on the DC circuit breaker. (Skip these two steps if there are no circuit breakers.) 3.) Switch the DC Switch to the “ON” position. When the energy supplied by the PV array is sufficient, the LED of inverter will light up.
  • 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: Choose the communication data Modbus Address and Baud Rate (9600).
  • 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 to check the details as shown in the Figure 4- 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 Password: Password Main menu Chart Setting History Turn ON/OFF Running Data Password: 1111 Warning Running Status Inverter Parameters Read/Write Register Upgrade Firmware Grid Code PV Link Type Neutral Line RS485 Inverter Clock...

  • Page 63: Main Section

    5.2 Main Menu In the Main Menu, you can access the following sub-menus: ⚫ Running Data ⚫ Settings ⚫ History ⚫ Turn ON/OFF You can also view the main information related the status and the DC, AC, OTHERS and VERSION information in the Main section: Figure 5-2 Main Menu Screens...

  • 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 Choose the Setting icon and input the password“1111”as following: In the Setting section it is 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 is possible to access the following sub-menus: Grid Code, PV Link Type, Neutral Line, RS485, 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 Command Back Read/Write Register Prote ct ActivePower Derating ReactivePowe r Derating LVRT/HVRT Oth ers Enab le/Disab le Co mman d...
  • Page 68 5.4.2.1 Protect The Protect 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 The 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 The 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). Please note: Arc Fault is not an operational function for the 100/125kW Inverters.
  • Page 78 5.4.2.5 LVRT/HVRT Low voltage ride-through The LVRT/HVRT menu is used to set the LVRT ( High voltage ride-through and HVRT ( ) parameters as following: These functions are enabled with settings in Table 5.7-9 and 5.7-10.
  • Page 79 → Through 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 The Enable/Disable menu 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 VMaxMovAvgEn Function {Disable, Enable} {Disable} {Disable} {Disable} Moving Avg VMinMovAvgEn {Disable, Enable} {Disable} {Disable} {Disable} Function GFCIStaEn Static GFCI {Disable, Enable} {Enable} {Enable} {Enable} GFCIDynEn Dynamic GFCI {Disable, Enable} {Disable}...
  • Page 86 5.4.2.8 Commands In the Command 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. The 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: History

    5.4.3 Fault Recording The last record can store up 128 fault records in “ Fault Record ” menu. 5.4.4 Firmware Upgrade If the inverter firmware version needs to be updated, please contact the CPS Service Hotline at: +1 855-584-7168 Ext. 1. 5.5 History There are 2 submenus in the History menu: “Alarm”...
  • Page 89 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 90: 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 91 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 92: 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 93 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 94 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 95 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 96 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 97 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 98 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 99 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 100: 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 101 7.1.1 Check Electrical Connections Check all the cable connections as a regular maintenance inspection every 6 months or once a year. 1.）Check the cable connections. If loose, please tight all the cables referring to “3.3 Electrical installation”. 2.）Check for cable damage, especially whether the cable surface is scratched or smooth.
  • Page 102 (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 103 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 104 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 105 (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 106: Chapter 8 Technical Data

    Chapter 8 Technical Data (for Reference Only – Refer to Datasheet on website for latest information) SCH100KTL- SCH125KTL- SCH100KTL- DO/US-600 DO/US-600 DO/US-600 DC Input – UNGROUNDED ARRAY Max. PV Power 187.5kWdc Max. DC Input Voltage 1500Vdc Operating DC Input Voltage Range 860-1450Vdc 750-1450Vdc MPPT Voltage Range...
  • Page 107 Environment Enclosure Protection Degree NEMA Type 4X Cooling Method Variable speed cooling fans Operation Temperature -22°F to +140°F/- 30°C to +60°C (derating from Range +113°F/+45°C) Storage Temperature Range -40F to +158°F/-40°C +70°C maximum Operating Humidity 0-95%, non-condensing Operating Altitude 8202ft / 2500m Display and Communication User Interface and Display LED Indicators, APP...
  • Page 108 Po/Pn（%） 100% 860 900 1300 1450 PV Voltage (V) Figure 8-1 CPS SCH100/125KTL-US-600 derating curve of PV input voltage Po/Pn（%） 100% 1300 1450 PV Voltage (V) Figure 8-2 CPS SCH100KTL-US-480 derating curve of PV input voltage When the DC input voltage is higher than 1300V, the inverter begins derating, as shown in Figures 8-1 and 8-2.
  • Page 109 Po/Pn(%) 100% 2%/℃ Ambient Temperature(℃) Figure 8-3 CPS SCH100/125KTL-US-600 Derating Curve with High Temperature Figure 8-3 CPS SCH100KTL-US-480 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 Figures 8-2 and 8-3.
  • Page 110 Po/Pn(%) 100% 0.88Un 1.0Un 1.1Un Figure 8-3 CPS SCH100/125KTL-US-600 and SCH100KTL-US-480 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 begin to derate, as shown in Figure 8-3.

  • Page 111: 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.

This manual is also suitable for:

Sch100ktl-do/usSch125ktl-do/us-600Sch100ktl-do/us-480

Table of Contents

Save PDF