CHINT Grid PV-Inverter CPS SC1.5KTL, CPS SC2KTL, CPS SC2.8KTL, CPS SC4KTL, CPS SC4KTL-O Installation and Operation Manual Version 3.0E 2011.
Contents Before you start….................................................................................................... 3 Safety instructions ................................................................................................... 4 Limited Warranty..................................................................................................... 6 1. Overview......................................................................................................... 7 2. Features........
LCD Display Sequence......................................................................... 24 Auto Test Setting (Only for ENEL GUIDE 2010 model)........................ 25 Auto Test Record (Only for ENEL GUIDE 2010 model) ....................... 28 Accuracy of the reading ........................................................................ 29 6. Inverter Status.................................................................................................. 30 Display information ....................
Before you start… Congratulations on choosing CHINT Grid PV-Inverter (referred to in this manual as “PV-Inverter”, or simply “Inverter”). CHINT Grid PV-Inverter is a highly reliable product due to its innovative design and perfect quality control. Such an inverter is used in high demand, grid-linked PV systems. This manual contains important information regarding installation and safe operation of this unit. Be sure to read this manual carefully before using.
Safety instructions Risk of Electric Shock 1. Do not remove the casing. The Inverter contains no user serviceable parts. Refer servicing to qualified service personnel. 2. Both AC and DC voltage sources are terminated inside the PV-Inverter. Please disconnect these circuits before servicing. 3. When a photovoltaic panel is exposed to light, it generates a DC voltage. When connected to this equipment, a photovoltaic panel will charge the DC link capacitors. 4.
Hot surfaces Although designed to meet all safety requirements, some parts and surfaces of the PV-Inverter are still hot during operation. To reduce the risk of injury, do not touch the heat sink at the back of the Inverter or nearby surfaces while it is operating.
Limited Warranty The Inverter comes with a standard 5-year warranty. An optional extended warranty is available for purchase before the unit is delivered to the end user. T his warranty includes all defects of design, components and manufacturing.
1. Overview Model CPS SC1.5KTL CPS SC2KTL CPS SC2.
Parts Description LCD Display: Showing the Display information switch Operation LED, inverter status Optional communications Green, normal slot: RS485 & others Operation LED, Red, fault status Solar panel input Edition 3.
2. Features 9 z Very high conversion efficiency z Automatic MPPT (Maximum Power Point Tracking) z Higher power capacity than similar products of the same size. z Embedded LCD display showing complete status information z Natural convection cooling.
3. Installation instructions Opening the package After opening the package, please check the contents of the box. It should contain the following: 1. One CHINT inverter 2. Instruction manual 3. One mounting frame 4. 4 mounting screws 5. 2 safety-lock screws 6. One cable gland (PG21) for AC cable in CPS SC4KTL and SC4KTL-O 7. One AC socket assembly in C PS SC1.5KTL,SC2KTL and SC2.8KTL Before installation Before starting installation please consider the following items: CPS SC1.
9 Check the ambient temperature of ins tallation is within specified range -20 ~ +55°C. 9 The AC grid voltage is 230VAC, 50Hz. 9 Electric utility company has approved the grid connection. 9 Qualified personnel are performing the installation. 9 Adequate convection space surrounds the inverter. 9 Inverter is being installed away from explosive vapors. 9 No flammable items are near the inverter.
Mounting PV-Inverter to the wall 1. Select a wall or solid vertical surface that can support the PV-Inverter. 2. PV-Inverter requires adequate cooling sp ace. Allow at space above and below the inverter. 3. Using the mounting frame as a template, drill 4 holes as illustrated in the following figures. 4. Fix the mounting frame as the figure shows. Edition 3.
5. Hang PV-Inverter on the mounting frame. 6. Check the installation conditions. a) Do not install the PV-Inverter on a slanted surface. b) Check the upper straps of PV-Inverter and ensure it fits on to the bracket.
c) Insert safety-lock screws to the bottom leg to secure the inverter. Check the secure mounting of the PV-Inverter by trying to raise it from the bottom. The PV-Inverter should remain firmly attached. Select the installation location so that the status display can be easily viewed. Choose a strong mounting wall to prevent vibrations while PV-Inverter is operating. Edition 3.
Connecting to the grid (AC utility) 1. Measure grid (utility) voltage and frequency. It should be 230VAC, 50Hz, and single phase. 2. Open the breaker or fuse between PV-Inverter and utility. 3. For CPS SC1. 5KTL, SC2.8KTL, SC2KTL, SC4KTL and SC4KT L-O, connect AC wires as follows: z Insert utility wires through cable gland. Connect wires according t o polarities indicated on terminal block. L → LINE (brown or black), N → Neutral (blue) and → system ground (yellow-green).
To prevent risk of electric shock, ensure the ground wire is properly earthed before operating the PV-Inverter. 4. Suggested cable width for AC wire Model CPS SC1.5KTL / CPS SC2KTL CPS SC2.8KTL CPS SC4KTL / CPS SC4KTL-O Diameter φ (mm) ≥1.29 ≥1.63 ≥2.05 Area (mm2) AWG no. ≥1.5 ≤16 ≥2.0 ≥2.5 ≤14 ≤12 Connect to PV Panel (DC input) 1. Make sure the maximum open circuit voltage (Voc) of each PV string is less than 500VDC (or 450VDC for CPS SC1. 5KTL) UNDER ANY CONDITION.
permanently damage the unit. Check short-circuited current of the PV string. The total short-circuit current of the PV string should be less than the inverter ’s maximum DC current. High voltages exist when the PV panel is exposed to the sun. To reduce risk of electric shock, avoid touching live components and treat connection terminals carefully. Checking 1.
4. System Diagram The typical connection diagram for the entire PV system is shown in the following figure. 1. PV Panel: Provide DC power to inverter 2. PV-Inverter: Converts DC (Direct Current) power from PV panel(s) to AC (Alternating Current) power. Becaus e the PV-Inverter is grid-connected it controls the current amplitude according to the PV Panel power supply. The inverter always tries to convert the maximum power from your PV panel(s). 3.
5. Operation of PV-Inverter Initialization for Regulation Setting 1. The Inverter provides a “Initialization” function at the first time start-up as an process in which user is able to select the intended regulation type before normal operation. 2. The inverter will not able to operate normally before regulation setting is completed even though it is connected correctly at both DC input and AC output. 3.
Initialization Press button (1sec) VDE0126-1-1 “INIT OK” indicate Regulation type setting is completed Press button (1sec) INIT OK RD1663 Press button (5sec) to set intended Regulation type Press button (1sec) ENEL Guide 2010 Press button (1sec) Only appear on relevant model CGC Press button (1sec) Only appear on relevant model G83/1-1 Press button (1sec) Modes of operation There are 3 different modes of operation. 1. Normal mode: In this mode, the inverter works normally.
3. Shutdown mode: During per iods of little or no sunlight, inverter automatically stops running. In this mode, inverter does not take any power from the gr id. The display and LED’s on the front panel do not work.
Front Panel Operating PV-Inverter is quite easy. During normal operation, the inverter runs automatically. However, to achieve maximum conversion efficiency of inverter please read the following information: 1. Automatic ON-OFF: PV-Inverter starts up automatically when DC-power from the PV panel is sufficient. Once the PV-Inverter starts it enters one of the following 3 states: z Standby: The PV st ring can only provide just enough voltage to minimum requirements of the controller.
information. Each subsequent press changes the display. The display sequence is shown in panel LCD display sequence figure on next page. 4. Hold display: If you want to hold a specific display. Repeatedly press the function key until the desired display is reached. Release the key and press again for more than 1 second until you see “ Lock”, release the key; the information remains on the display. To change the display again, please press the key as indicated in 3 5.
LCD Display Sequence LCD display sequence Pac=xxxx.xW Feeding wattage Model=xxxxxx Turn-on backlight Etoday=xx.xxkWh Cx.xx Feeding energy of Normal State the current day Eac=xx.xkWh Accumulate energy. Contrast Vdc =xxx.xV DC-PV voltage Set Language Iac= xx.xA Feeding current Vac = xxx.xV Frequency=xx.xHz AC Frequency Model information F/W version Operating status Contrast Adj.
Auto Test Setting (Only for ENEL GUIDE 2010 model) The Inverter is supplied with an auto test function which enables the user to check that the protection interface is operating correctly. In order to select this function, press the function button until the message "AUTO TEST SET" appears on the display panel. Press and hold the same button for at least 5 seconds to initiate the auto test procedure. Press function button until Auto test set appears. Press and hold function button for more than 5s.
Auto Test If the threshold and the grid voltage are equal, the PV Inverter switches to fault. Display shows a message similar to this switch-off time OK. Upper frequency threshold will be checked. Display shows variation between upper frequency threshold and mains supply. If the threshold and the grid frequency are equal, the PV Inverter switches to fault. Display shows a message similar to this switch-off time OK. Lower voltage threshold will be checked.
Auto Test If all the above tests have been performed, the display shows the message TEST PASSED. PV Inverter switches to normal operation mode. If one of the above tests failed, the display shows the message AUTO TEST FAILED. PV Inverter switches automatically and permanently to fault status. Contact the installer.
Auto Test Record (Only for ENEL GUIDE 2010 model) After the Auto test setting, inverter will record the test result values, as shown in below. **Press the button for 5 seconds, the messages shown on th e screen will change per second. Un-press the button, the Aut o Test Record will be shown on the screen. If there's no test record, the message of "No Test Record" will be shown on the screen. Edition 3.
Maximum Power Point Tracking (MPPT) A good PV inverter must be IPV (A) able to convert the maximum power from any PV panel. Due to its advanced design, this PPV (W) Maximum power point 2 @ 1000W/m ~ 120W 1000W/m 2 5 125 800W/m2 4 100 600W/m2 3 75 maximum power from your PV 2 50 panel in any condition.
6. Inverter Status This inverter is designed to be user-friendly; therefore, the status of the Inverter can be easily understood by reading the information shown on the front panel display. All possible messages are shown in the following table.
Operating conditions In English In German In Italian Description FLASH FLASH FLASH FLASH firmware Instantaneous Output power Pac=xxxx.xW Pac=xxxx.xW Pac = xxxx.xW The real time output power in xxxx W Accumulated energy information Eac = xxxxxxkWh Eac = xxxxxxkWh E = xxxxxxkWh Total energy to has been fed to grid since inverter was installed Vac=xxx.xV Uac=xxx.xV Vac = xxx.xV Grid voltage in xxx.x VAC Freq = xx.xHz Grid frequency in xx.
Operating conditions In English In German In Italian Description Isolation failure Isolation fault Isolationsfehler Err.Isolamento Earth fault of the PV-panels or failure of surge voltage protection GFCI active Ground I fault Fehlerstrom I dispers.Alta Leakage current on ground conductor is too high Grid failure Grid fault Netzfehler Err.
Operating conditions In English In German In Italian Description Output relay failure Relay Failure Relaisfehler Err.relè The relay between inverter and grid is not functional Output DC injection too high DC INJ High DC INJ zu hoch Idc uscita alta Output DC injection too high EEPROM Failure EEPROM Fehler Err.interno 02 EEPROM inside has data access problem Communication failure between microprocessors SCI Failure CPU Fehlfunktion Err.
Operating conditions In English In German In Italian Description System Information Model display LCD contrast CPS SC1.5KTL / CPS SC2KTL / … CPS SC1.5KTL / CPS SC2KTL / … CPS SC1.
LED There are 2 LED’s on the inverter, one is green and the other is red. Normally, only the green LED s witches on during operation. Their indicated status is explained as follows: 1. Power on (green LED): It lights to indicate that the invert er is running. 2. Fault (red LED): Illuminates during a “fault” or “failure”. Details of possible faults and their solutions can be found in the previous table.
7. Communications This inverter is equipped with a po werful communications interface and options. Use “Pro Control” to monitor the status of your PV-Inverter. Also, qualified personnel can upgrade the firmware using the RS232 port. 1. RS232: To use the RS232 port, remove the RS232 cover on the bottom side of the inverter. It is a DB9 socket. The pin definition is Pin 1 2 3 4 5 6 7 8 9 Functional Description N.C. TxD RxD N.C. Common N.C. N.C. N.C. N.C. N.C. means “No Connection” 2.
To prevent risk of damage it is recommended that only authorized personnel perform firmware upgrades.
8. Trouble shooting In most situations, the inverter requires very little service. However, if inverter is not able to work perfectly, please refer to the following instructions before calling your local dealer. z Should any problems arise, the red (Fault) LED on the front panel turns on and the LCD d isplays the relevant information. Please refer to the following table for a list of potential problems and their solutions. Display System Fault Inverter Failure Possible actions 1.
1. The internal temperature is higher than specified normal value Over 2. Find a way to reduce the ambient temperature. temperature 3. Or move the inverter to a cooler environment 4. If it is not effective, call local service Relay Failure DC INJ High EEPROM 1. Disconnect ALL PV (+) or PV (-) Failure 2. Wait for few seconds SCI Failure 3. After the LCD switches off, reconnect and High DC Bus check again Low DC Bus 4. If the message reappears call your local Ref 2.
9. Specifications Model Market Germany (DE) Italy (IT) United Kingdom (UK) China (CN) CPS SC1.5KTL CPS SC2KTL CPS SC2.8KTL CPS SC4KTL CPS SC4KTL-O V V V - V V V - V V V V V V V - V V - Input (DC) Nominal DC voltage Max.
Model CPS SC1.5KTL CPS SC2KTL CPS SC2.8KTL DC insulation resistance2 CPS SC4KTL CPS SC4KTL-O > 5MΩ Output (AC) Nominal AC power 1500W 2000W 2800W 4000W 4000W Max. AC power (in 10 minutes) 1650W 2200W 3000W 4400W 4400W Nominal AC current 6.6 A 8.7 A 12.2 A 17.4 A 17.4 A Max. AC current 7.9 A 10.5 A 14.3 A 20 A 20 A O/P current distortion (THD i) < 3% Power Factor > 0.
Model CPS SC1.5KTL CPS SC2KTL Disconnection time of excess operational frequency range for Italy (IT) 5 6 CPS SC4KTL CPS SC4KTL-O ≦0.2 sec. Re-connecting time after disconnection Operational voltage range5 (F/W Setting) Disconnection time of excess operational voltage range Operational frequency 6 range (F/W Setting) Disconnection time of excess operational frequency range Re-connecting time after disconnection CPS SC2.8KTL 30 sec 190~267V Min Voltage protection 0.2 s; Max voltage protection 0.
Model for United Kingdom (UK) CPS SC1.5KTL CPS SC4KTL CPS SC4KTL-O 212~256V Step1 : 207~246V Step2 : 189~256V - ≦1.5 sec. U/V st1 200.1V(87%), 2.5s O/V st1 253V(110%), 1s U/V st2 184V(80%), 0.5s O/V st2 264.5V(115%), 0.5s 47.05~50.45Hz St1 47.55~51.45Hz St2 47.05~51.95Hz Operational voltage range7 (F/W Setting) Disconnection time of excess operational voltage range Operational frequency range8 (F/W Setting) Disconnection time of excess operational frequency range CPS SC2KTL ≦0.5 sec.
Model CPS SC1.5KTL Re-connecting time after disconnection CPS SC2KTL CPS SC2.8KTL 180 sec CPS SC4KTL CPS SC4KTL-O 180 sec - Efficiency Max. conversion efficiency 95% 96% 96% 96% 96% European efficiency 94% 95% 95% 95% 95% Edition 3.
Typical Efficiency Charts vs. Load CPS SC1.5KTL CPS SC2.8KTL CPS SC4KTL / CPS SC4KTL-O specifications may cause actual results to differ.
10. Disposal The dealer or installers should re move the PV Inverter from th e array and contact the supplier for disposal instructions The inverter must not be disposed of with the household waste. Dispose of the PV Inverter at the end of its service life should be done in accordance with the disposal regulations for el ectronic waste which apply at the installation site at that time. Please contact supplier for disposal instruction, the contact information could be found in Chapter 11.
11. Contact Information Should you ha ve technical problems concerning this product, please contact our Service line. We require the fo llowing information in order to pr ovide you with the necessary assistance: • Inverter type • Serial number of the PV Inverter • Type and number of PV panel connected • Fault message • Communication method SHANGHAI CHINT POWER SYSTEMS CO., LTD. Add: Building 4, No.
12. Regulation & Certificate Regulatory Type VDE0126-1-1 ENEL Guide Grid Monitoring 2010 G83/1-1; G59 Issue 2 Safety EMC: EMS / EMI CE Edition 3.0E, 2011/05 CPS CPS SC1.5KTL SC2KTL CPS CPS SC2.8KTL SC4KTL CPS SC4KTL-O V VV V V V VV V V G59 issue2 - G83/1-1 G83/1-1 G83/1-1 DIN EN 50178 (4.
VDE Certificate (European models) 49
