1. Manuals
  2. Brands
  3. CHNT Power Manuals
  4. Inverter
  5. CPS SC500KTL
  6. Installation and operation manual

CHNT Power CPS SC500KTL Installation And Operation Manual

Cps sc series
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
CPS SC Series
Grid-tied PV Inverter
CPS SC500KTL
(CPS SC500KTL-H)
CPS SC250KTL-H
Installation and Operation Manual
SHANGHAI CHINT POWER SYSTEMS CO., LTD.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CPS SC500KTL and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for CHNT Power CPS SC500KTL

Summary of Contents for CHNT Power CPS SC500KTL

  • Page 1 CPS SC Series Grid-tied PV Inverter CPS SC500KTL (CPS SC500KTL-H) CPS SC250KTL-H Installation and Operation Manual SHANGHAI CHINT POWER SYSTEMS CO., LTD.

  • Page 2: Table Of Contents

    2.2 Description of inverter types ·································· 5 2.3 Inverter circuit structure ········································· 5 2.4 Appearance ··························································· 7 2.4.1 Appearance description of CPS SC500KTL ... 7 2.4.2 Appearance description of CPS SC250KTL ... 8 Chapter 3 Installation............9 3.1 Basic requirements ················································ 9 3.2 Mechanical installation ··········································...
  • Page 3 4.5 Troubleshooting ··················································· 37 Chapter 5 Human Machine Interface ......44 5.1 Description of LCD display ·································· 44 5.2 Operation state ···················································· 45 5.3 Interface and menu functions ······························ 46 5.3.1 Interface types ..........46 5.3.2 Main operation interface ....... 48 5.3.3 Operation information ........

  • Page 4: Chapter 1 Important Safety Instructions

    Chapter 1 IMPORTANT SAFETY INSTRUCTIONS (SAVE THESE INSTRUCTIONS) Please read this manual carefully before installation. The warranty will be invalid automatically if the user does not follow this manual during installation and operation resulting in damage to the equipment. ELECTRIC SHOCK HAZARD: All operations and wiring should be performed by qualified technical personnel! Disconnect the inverter from PV assemblies and the Grid...
  • Page 5 command is carried out successfully through LCD button operations. 2. This inverter is specially designed to connect AC power to the public grid. Do not connect the AC output of this equipment directly to private AC power equipments. 3. If the DC circuit breaker is tripped because of malfunction, it is prohibited to turn on the DC circuit breaker directly.
  • Page 6 should be switched to outside power supply. HIGH TEMPERATURE: Do not touch the metal surfaces of the radiator and inverter during the operation of the inverter！ Chapter 1 IMPORTANT SAFETY INSTRUCTIONS...

  • Page 7: Chapter 2 Overview

    Chapter 2 Overview 2.1 Grid-tie PV system SC500KTL (CPS SC500KTL-H), SC250KTL-H grid connection photovoltaic inverters are mainly applied to power station systems. Normally, the system consists of PV modules, DC power distribution unit, grid connection inverter and AC power distribution unit (Figure 2-1).

  • Page 8: Description Of Inverter Types

    CPS salesmen. *Because the appearance and dimensions as well as the basic internal structure of CPS SC500KTL-H and CPS SC500KTL share the same, CPS SC500KTL will be taken as representative in the following instruction. 2.3 Inverter circuit structure The basic schematic diagram of CPS SC500KTL inverter is shown in Figure 2-2.
  • Page 9 EMI circuit and breaker, then finally be fed to the power grid. The basic schematic diagram of CPS SC250KTL-H inverter is shown in Figure 2-3. Figure 2-2 Schematic diagram of CPS SC500KTL Figure 2-3 Schematic diagram of CPS SC250KTL-H Chapter 2 Overview...

  • Page 10: Appearance

    2.4 Appearance 2.4.1 Appearance description of CPS SC500KTL Figure 2-4 Appearance sketch of CPS SC500KTL Description of main components (Figure 2-4): 1、Operating handle of DC circuit breaker 2、Operating handle of AC circuit breaker 3、LCD display panel and operation buttons 4、Emergency stop button 5、Logo of Chint Power System Co.

  • Page 11: Appearance Description Of Cps Sc250Ktl

    2.4.2 Appearance description of CPS SC250KTL Figure 2-5 Appearance sketch of CPS SC250KTL-H Description of main components (Figure 2-5): 1、Operating handle of DC circuit breaker 2、Operating handle of AC circuit breaker 3、LCD display panel and operation buttons 4、Emergency stop button 5、Logo of Chint Power System Co.

  • Page 12: Chapter 3 Installation

    Installation personnel must be qualified electricians or people who have received professional training; Sufficient convection space; Away from flammable and explosive substances 3.2 Mechanical installation (1) Dimensions Dimensions of CPS SC500KTL grid-tie PV inverter are shown in Figure 3-1. Chapter 3 Installation...
  • Page 13 Figure 3-1 Dimensions of CPS SC500KTL *Notice: The dimensions in Figure 3-1 do NOT include the operating handles. The overall dimensions including the operating handles are 2800(L)x855(D)x2100(H)mm. Dimensions of CPS SC250KTL-H grid-tie PV inverter are shown in Figure 3-2. Figure 3-2 Dimensions of CPS SC250KTL-H...
  • Page 14 *Notice: The dimensions in Figure 3-1 do NOT include the operating handles. The overall dimensions including the operating handles are 2800(L)x855(D)x2100(H)mm. (2) Requirements of inverter installation： a: The installation dimensions of CPS SC500KTL are shown in Figure 3-3. 2800 1000...
  • Page 15 Back: A 800mm space should be reserved for maintenance. Top: A 600mm space should be reserved for sufficient convection. The weight of CPS SC500KTL is approximately 2000kg. and the weight of CPS SC250KTL-H is about 1100Kg. Please make sure that the mounting place can bear the weight.
  • Page 16 1200-1300mm to the left edge About 500mm to the front door Figure 3-5 Diagram of lifting CPS SC500KTL with a crane B: Lifting CPS SC250KTL-H with a crane： Put 4 sling ropes through the four eye bolts on the top of inverter （...
  • Page 17 Center of gravity: 670-700mm to the left edge About 500mm to the front door Figure 3-6 Diagram of lifting CPS SC250KTL-H with a crane Because the center of gravity of both of the equipments is not located at the middle position, thus two long and two short sling ropes are required to lift them.
  • Page 18 Insert the fork at the bottom place of the machine from the back and lift it to the appropriate location for installation. The position for placing the arms of forklift is shown in Figure 3-7 and 3-8. Figure 3-7 Diagram of lifting CPS SC500KTL with a forklift Chapter 3 Installation...

  • Page 19: Electrical Installation

    Figure 3-8 Diagram of lifting CPS SC250KTL-H with a forklift *Note: Please try to carry the inverter from its back when using a forklift. If it is necessary to carry it from its front, buffer material needs to be placed on the front door to prevent the inverter from being damaged by the forklift.
  • Page 20 Invertion cabinet 2. (Note: This step is NOT needed for CPS SC250KTL-H because it has only one invertion cabinet.) 4. Turn the operating handle of AC circuit breaker anti-clockwise to horizontal position. 5. Unlock the door with the door key, turn the door knob anti-clockwise to horizontal position and then pull the knob to open the front door of AC output cabinet.

  • Page 21: Dc Connection

    (a) First, make sure that the maximum open circuit voltage of the PV modules is lower than 1000Vdc for CPS SC500KTL-H and CPS SC250KTL-H under any conditions; For CPS SC500KTL, the maximum open circuit voltage of the PV modules should be lower than 880V.
  • Page 22 positive pole of the inverter’s DC input, and the negative pole of PV module is connected to the negative pole of the inverter’s DC input; (c) The Max. DC input current of the inverter is 600A, so 35 ～ 120mm copper core cables are recommended for inverter’s DC input, as shown in Table 3-2：...

  • Page 23: Ac And Ground Connection

    200 mm Bolts (3) Connect the AC output cables to L1, L2, L3 terminals and PE cable to the ground terminal of the inverter, as shown in Figure 3-12: Figure 3-12 AC and ground connection of CPS SC500KTL Chapter 3 Installation...
  • Page 24 (4) Make sure all cables are tightened on L1, L2, L3 and ground terminals properly. b: For CPS SC250KTL-H (1) The rated 3 phase AC output voltage is 270V and the maximum output current is 588A. (2) Use the recommended AC output and grounding cables as shown in Table 3-4: Table 3-4 4 striings...

  • Page 25: Communication Connection

    (4) Make sure all cables are tightened on L1, L2, L3 and ground terminals properly. 3.3.3 Communication connection RS485 communication connection (Standard configuration)： The LCD board on the inverter has 2 RJ45 communication connectors, which are RS485-1 and RS485-2, as shown in Figure 3-14. Ethernet RS485-1 RS485-2...
  • Page 26 (4) Requirement of communication cables: Shielded cables should be used for communication cables with maximum length of 1000 meters. The wiring requirements of RS485-1/2 connector are shown in Table 3-5 and the way of connection is shown in Figure 3-15. Cables 1~8 are shown from left to right.
  • Page 27 (5) Ethernet communication connection (optional)： The Ethernet interface on the inverter is for data transmission running on TCP/IP protocol, as shown in Figure 3-14. Shielded twisted pair (STP) is recommended for the communication cables. Both terminals of a communication line should conform to the 568B standard. Chapter 3 Installation...

  • Page 28: Dry Contact And Auxiliary Power Connection

    3.3.4 Dry contact and auxiliary power connection The connection of auxiliary power and dry contact on the AC output cabinet is shown in Figure 3-16. Note: CPS SC250KTL-H has only one set of auxiliary power and dry contact. AUX POWER SELECTION AUX POWER SELECTION 辅助电源选择...
  • Page 29 (3) No. 1 and 2 connectors of Terminal ③ can be used as the fault alarm contacts of inverter. Note: For CPS SC500KTL, outside power is available to be used as the operating power for both of the DC input cabinets or each of them.

  • Page 30: Chapter 4 Operation

    3 minutes for the whole process of charging, the LCD indication of which is shown in Figure 4-1 and 4-2. Note: For CPS SC500KTL, 001# stands for Cabinet 1 for DC input invertion and controlling and 002# stands for Cabinet 2 for DC input invertion and controlling.
  • Page 31 Figure 4-6 Connection status of circuit breaker of CPS SC500KTL circuit breaker of CPS SC250KTL-H Afterwards, CPS SC500KTL/CPS SC250KTL-H will run the automatic start-up program. Automatic start-up: When the inverter is energized or under normal operation after the installation and if the inside...

  • Page 32: Shut-Down

    start up/shut down. When the output voltage and power of PV panel meet the set point, AC power grid is normal, and the ambient temperature is within allowable operating range, the inverter will start up automatically. Manual start-up: If the inverter is shut down manually, it should be started up by manual as well.
  • Page 33 (2) Press the “emergency stop button” on the panel to shut down the inverter in case of emergencies. Automatic shut-down: When the inverter is under normal operation and if the inside 3 phase output AC is not cut off or the outside 220V AC is not interrupted, the inverter will enter the state of automatic start up/shut down.
  • Page 34 Figure 4-7 Inverter de-energy interface (4) After pressing ENTER to confirm, the DC bus capacitor begins to discharge. When the de-energy process is completed, the indication on the LCD is shown in Figure 4-8. It is recommended that the voltage of DC BUS capacitor should be measured to ensure it reaches the safe voltage before maintenance.

  • Page 35: Operation Mode

    Figure 4-9 De-energy error interface Note: The start up steps after maintenance may refer to the part of “Before start-up” in 4.1.1 Start up. Caution: 1. The command of De-energy will be ineffective if the inverter is being energized. Wait and execute the command until the process of De-energy is completed.
  • Page 36 Figure 4-10 System self check ongoing (2) Normal operation mode, as shown in Figure 4-11: Figure 4-11 Default interface of normal operation In this mode, the inverter converts the power generated by PV modules to AC continuously and feeds to the power grid.
  • Page 37 Figure 4-12 Inverter system in standby (4) Fault mode, as shown in Figure 4-13: The inverter will disconnect from the power grid and turn into fault mode when the PV power generation system fails. Check the fault information on the LCD and specific cause found “Troubleshooting”...

  • Page 38: Grid Connection And Power Generation

    The inverter will enter standby mode when the sunlight is weak and power generation is insufficient. The two independent 250KW modules of CPS SC500KTL adopt the advanced cascade control to realize the high efficiency and reliability of the inverter by putting one DC cabinet into...

  • Page 39: Fault Shutdown

    operation after another one according to the intensity of sunlight. It will disconnect from the power grid when the sunlight is very weak. The inverter will try to connect to the grid and generate power again when the photovoltaic array voltage is stable and higher than 470V.

  • Page 40: Troubleshooting

    off one or two DC circuit breakers, i.e. one or two 250KW DC cabinets will stop working completely. If the faults mentioned above occur to CPS SC250KTL-H, the inverter will stop working instantly. If service personnel need to maintain the inverter, please refer to the part of “Manual Shut-down for maintenance”.
  • Page 41 Table 4-1 Troubleshooting Table Warn/Protect/ Recommended Definition Possible causes Fault solutions 1 、 Observe for 5 minutes and see 1 、 Internal wiring whether the alarm will problem of the Communication be eliminated 1 、 CommErr inverter; automatically; inside inverter fails 2 、...
  • Page 42 Warn/Protect/ Recommended Definition Possible causes Fault solutions 1 、 Observe for 5 minutes and see Lightning surge whether the alarm will be eliminated 5 、 Warn004x Inside warning protector on DC side automatically; has an open circuit 2 、 Contact after-sales service personnel 1 、...
  • Page 43 Warn/Protect/ Recommended Definition Possible causes Fault solutions 1 、 Observe for 5 It is detected that the minutes and see whether the alarm will average DC input in be eliminated 9 、 Warn008x Inside warning Cabinet 1/2 is 30A automatically; larger than that in 2 、...
  • Page 44 Warn/Protect/ Recommended Definition Possible causes Fault solutions 1 、 Observe for 10 minutes and see whether the alarm will 1 、 Grid frequency be eliminated has abnormalities; automatically; 2 、 Power outage of 2 、 Check whether the Grid voltage the grid;...
  • Page 45 Warn/Protect/ Recommended Definition Possible causes Fault solutions 1 、 Observe for 10 1 、 Parasitic minutes and see capacitance of PV whether the alarm will panels is too large be eliminated The leakage because of automatically; 6 、 GFCIErr current of the environmental 2 、...
  • Page 46 Warn/Protect/ Recommended Definition Possible causes Fault solutions 1 、 The inverter can be forced restarted once if it is required by operation and if it is 10 、 Fault inside Serious fault occurs confirmed that there is Fault Fault001x~016x inverter inside inverter no other problem;...

  • Page 47: Chapter 5 Human Machine Interface

    Chapter 5 Human Machine Interface 5.1 Description of LCD display CPS SC500KTL/CPS SC250KTL-H display mainly consists of LCD screen, LED indicator lights, buzzer and 6 keys. Meanings of indicator lights are shown in Table 5-1 and functions of the keys are shown in Table 5-2.

  • Page 48: Operation State

    Table 5-2 Definitions of the keys Description Definition of function Escape ESC( Back/end/mute Enter Confirm entering the ） ENTER（ menu/confirm set point PAGEUP（ ） Page up in selection menu PAGEDOWN Down Page down in selection menu （ ） ADD（ ） Left +1 when setting parameters DEC（...

  • Page 49: Interface And Menu Functions

    “FAULT” will not light up if both the inverter and grid are normal. The buzzer will give alarms if a fault (involving power grid abnormality) occurs. 5.3 Interface and menu functions Users can perform the corresponding operations with the 6 function keys according to the indications of the LCD display.
  • Page 50 Figure 5-2 Inverter system check ongoing Figure 5-3 Default display interface for normal operation Figure 5-4 Inverter system in standby mode Figure 5-5 Fault indication interface Chapter 5 Human Machine Interface...

  • Page 51: Main Operation Interface

    LCD screen will display different mode interfaces based on the operation modes of the inverter. There are four operation modes: startup system check mode (as shown in Figure 5-2), normal operation mode (as shown in Figure 5-3), stand-by mode (as shown in Figure 5-4) and fault mode (as shown in Figure 5-5).

  • Page 52: Operation Information

    The main operation interface of LCD screen has 4 level-1 menus, i.e. “1 OP. Info”, “2 Alarm”, “3 History” and “4 Setting”. The users may select options with PAGEUP and PAGEDOWN, and then press ENTER to confirm selection. The users can return to the default indication interface by pressing the ESC key.

  • Page 53: Present Fault

    5.3.4 Present fault As described before, when faults occur during the normal operation of the inverter, corresponding fault message will be indicated in “2 Alarm” menu besides the sound and light alarms. Move the cursor to “2 Alarm” and press ENTER to check out the specific fault information (50 pieces of fault information can be indicated at the same time), as shown in Figure 5-8.
  • Page 54 interface. The users can select the “2 OP. Recd” menu and input the retraceable days (For example, the input number is 21. If the current date is December 15th, the LCD will indicate the operation information of 21 days before that date which is November 24th).

  • Page 55: System Setup

    5.3.6 System setup Move the cursor to “4 Setting” in the main interface. Press ENTER to set the current system parameters, as shown in Figure 5-10. There are 6 submenus in “4 Setting” : “1 ON/OFF”, “2 Language”, “3 Buzzer”, “4 SysTime”, “5 Commun”...
  • Page 56 and minute by pressing Page Up/Page Down, and set up the specific date and time by pressing Left and Right. (5) Set the 485 communication parameters (including the address and baud rate of inverter) with “5 Commun.” menu. (6) In “6 OtherCmd” menu, run “1 De-energy” to discharge the electric charges of DC capacitor quickly.

  • Page 57: System Protection Parameter Setup

    5.3.7 System protection parameter setup By pressing PAGEDOWN and ENTER at the same time main interface entering password (PAGEUP->PAGEDOWN->RIGHT->LEFT), system parameter setup menu is entered, as shown in Figure 5-11. This menu includes 4 submenus: “1 SysPara”, “2 Restart”, “3 Recover”...
  • Page 58 Figure 5-11 System parameter setup Chapter 5 Human Machine Interface...
  • Page 59 Table 5-3 Protection Parameters Table Description of Setup range (lower limit, LCD indication parameter default & upper limit) Grid voltage GridV.Max(V) （200.0,297.0,365.0V） upper limit (V) Grid votage GridV.Min(V) （0,243.0,270.0V） lower limit (V) Grid frequency GridF.Max(Hz) (50.00,50.50,65.00Hz) upper limit (Hz) Grid frequency GridF.Min(Hz) (45.00,49.50,60.00Hz) lower limit (Hz)

  • Page 60: Chapter 6 Technical Data

    Chapter 6 Technical Data CPS SC500KTL/CN DC Input Max. DC Voltage* 880Vdc MPPT Voltage Range 450~820Vdc Max. DC Power 550KWp Max. Input Current 1200A Max. strings of DC input AC Output Nominal Output Power 500KW Nominal Grid Voltage 270Vac 3 phase...
  • Page 61 Display LCD Display Mechanical parameters WxDxH (mm) 2800×806×2100 Weight (kg) 2000kg *Note 1: Exceeding the rated voltage shown in “Maximum DC voltage” may cause permanent damage to the equipment. **Note 2: “Allowable Grid Voltage” and “Nominal grid frequency” depend on the specific national grid standard. Chapter 6 Technical Data...
  • Page 62 CPS SC500KTL-H DC Input Max. DC Voltage* 1000Vdc MPPT Voltage Range 450~820Vdc Max. DC Power 550KWp Max. Input Current 1200A Max. strings of DC input AC Output Nominal Output Power 500KW Nominal Grid Voltage 270Vac 3 phase Allowable Grid Voltage**...
  • Page 63 Weight (kg) 2000kg *Note 1: Exceeding the rated voltage shown in “Maximum DC voltage” may cause permanent damage to the equipment. **Note 2: “Allowable Grid Voltage” and “Nominal grid frequency” depend on the specific national grid standard. Chapter 6 Technical Data...
  • Page 64 CPS SC250KTL-H CPS SC250KTL-H/CN DC Input Max. DC Voltage* 1000Vdc MPPT Voltage Range 450~820Vdc Max. DC Power 275KWp Max. Input Current 600A Max. strings of DC input AC Output Nominal Output Power 250KW Nominal Grid Voltage 270Vac 3 phase Allowable Grid Voltage** 243~297Vac Nominal Grid Frequency** 50Hz...
  • Page 65 Weight (kg) 1100kg *Note 1: Exceeding the rated voltage shown in “Maximum DC voltage” may cause permanent damage to the equipment. **Note 2: “Allowable Grid Voltage” and “Nominal grid frequency” depend on the specific national grid standard. Chapter 6 Technical Data...

  • Page 66: Chapter 7 Quality Assurance

    Chapter 7 Quality Assurance 7.1 Warranty The warranty policy of this product is specified in the contract; otherwise the warranty period is 24 months since the date of installation. 7.2 Disclaimer 1、Damages caused during transportation; 2、Operating in an environment that doesn’t conform to the specifications of the manual;...
  • Page 67 CPS SC500KTL (CPS SC500KTL-H), CPS SC250KTL-H PV grid-tie inverter. We will be glad to provide the best service for you at any time. Chapter 7 Quality Assurance...
  • Page 68 Website: www.chintpower.com Service hotline: 021-37791222-6300 Email: service.cps@chint.com CPS SC500KTL (CPS SC500KTL-H), CPS SC250KTL-H Installation and Operation Manual (PN: 9.0020.0069B0) is printed for the first time. This manual is subject to change without prior notification. Copyright is reserved. Duplication of any part of this issue is prohibited without...

This manual is also suitable for:

Cps sc250ktl-hCps sc500ktl-h

Table of Contents