CPS SC14KTL-DO/US-208 Installation And Operation Manual Download Page 10

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2.3 Circuit structure design

The basic schematic diagram of CPS SC14KTL-DO/US-208 is shown in

Figure 2-2. The input DC passes through surge protection circuitry, DC EMI

filter, and the boost circuit to achieve maximum power tracking and boost up

voltages. The inverter converts the DC energy to 3-phase AC energy. The high

frequency components of AC voltage are removed with a line filter. Then the

3-phase AC energy is sent through two-stage relays and EMI filter to produce

high quality AC power.

EMI

Filter

INV

EMI

Filter

L2
L3

Filter

Lightin

g surge

DC_Switch

PV1+

PV1-

DC/DC

EMI

Filter

PV2+

PV2-

DC/DC

AC_Switch

Lightin

g surge

Lightin

g surge

Figure 2-2 Schematic diagram of CPS SC14KTL-DO/US-208

Summary of Contents for SC14KTL-DO/US-208

Page 1: ...CPS SC Series Grid tied PV Inverter CPS SC14KTL DO US 208 Installation and Operation Manual Ver 1 1 ...

Page 2: ...power com Service Hotline 855 584 7168 Address 700 International Parkway Suite 102 Richardson TX 75081 SHANGHAI CHINT POWER SYSTEMS CO LTD All rights reserved Specifications and designs included in this manual are subject to change without notice CHINT POWER 2013 09 MKT PN 9 0020 0117B0 ...

Page 3: ...onnection 19 3 3 3 Communication connection 22 Chapter 4 Operation 32 4 1 Start up 32 4 2 Shut down 32 4 3 Operation mode 32 4 4 Grid connection and power generation 34 4 5 Fault shutdown 35 Chapter 5 User Interface 43 5 1 Description of LCD panel 43 5 2 Operation state 44 5 3 Interface and menu functions 45 5 3 1 Interface types 45 5 3 2 Main operation interface 47 5 3 3 Operation information 47 ...

Page 4: ......

Page 5: ...This PV Inverter is a high performance and highly reliable product specifically designed for the North American Solar market If you encounter any problems during installation or operation of this unit first check this manual before contacting your local dealer or supplier Instructions inside this manual will help you solve most installation and operation difficulties Please keep this manual on han...

Page 6: ...tion which if not avoided will result in death or serious injury WARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE NOTICE indicates a hazardous situation which if not avoided could result in equipment working abnormally or p...

Page 7: ...earth through the PE protective earthing cable to ensure operational safety DANGER Please disconnect the inverter from AC grid and PV modules before opening the equipment When the PV array is exposed to light it supplies DC voltage to this 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 ...

Page 8: ...to the public grid Do not connect the AC output of this equipment directly to any private AC power equipment CAUTION CPS SC14KTL DO inverter is approx 64kg 141 pounds Please ensure the mounting is properly installed before hanging the the inverter on the bracket ...

Page 9: ...lied to the electricity grid DC power distribution equipments AC Grid Bidirectional electric meter AC power distribution equipments Figure 2 1 Grid tied PV system 2 2 Product features The two MPPT design has the benefit of increasing the power generating efficiency of the whole PV system The inverter has 2 MPPTs so a separate array can be controlled by an independent Maximum Power Point Tracking M...

Page 10: ...ges The inverter converts the DC energy to 3 phase AC energy The high frequency components of AC voltage are removed with a line filter Then the 3 phase AC energy is sent through two stage relays and EMI filter to produce high quality AC power EMI Filter INV EMI Filter L1 L2 L3 N PE Filter Lightin g surge DC_Switch PV1 PV1 DC DC EMI Filter PV2 PV2 DC DC AC_Switch Lightin g surge Lightin g surge Fi...

Page 11: ...PS SC14KTL DO US 208 See Figure 2 3 1 LCD key buttons operate the functions and change settings of inverter 2 LCD display indicates data 3 LED indicator lights indicate the status of inverter 4 Holes for cable entry 5 DC switch control the DC power on and off 6 AC switch control the AC power on and off 7 Main housing 8 Wiring box ...

Page 12: ...Grid tied PV inverter 1 2 Mounting bracket 1 3 Installation and operation manual 1 4 Warranty card 1 5 Accessory kit 1 contains all necessary accessories The 5 Accessory kit contains items listed below Table 3 2 Accessories Item Q ty Purpose M8x25 Expansion bolts nuts 8 pairs for bracket installation OT type terminal 1 For ground cable Pre insulated end ferrule 20 16 for DC input cables 4 for AC o...

Page 13: ...ufficient space is provided to allow the inverter cooling system to operate normally Install the inverter away from flammable and explosive substances Avoid installing the inverter in locations that exceed the temperature limits specified in the inverter data sheet to limit undesirable power loss Do not install the inverter near the electromagnetic source which can compromise the normal operation ...

Page 14: ...208 2 Installation method Make sure that the mounting structure 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 is allowed to be tilted ...

Page 15: ...al position e Do NOT mount the inverter upside down Figure 3 2 Mounting the inverter properly 3 Space required for inverter mounting on the wall see Figure 3 3 The distances between the inverter and the surrounding objects should meet the following conditions two sides from the walls 300mm 11 81in top ...

Page 16: ... minimum spacing between two inverters in parallel 600mm 11 81in Figure 3 3 Inverter mounting dimensions 4 Secure the bracket with bolts through the mounting holes and install the inverter a Mark the 6 bolt holes for mounting the bracket as shown in Figure 3 4 ...

Page 17: ... b Drill holes at the marked positions with a diameter of 0 4in drill and put the 6 expansion bolts into the holes c Take the mounting bracket out of the package and secure the bracket on the wall with the 6 nuts in pair as shown in Figure 3 5 ...

Page 18: ...he bolts and remove the two panels on both sides of the inverter as shown in Figure 3 6 Figure 3 6 Removal of panels before mounting inverter e Two people grab at the position on each side see Figure 3 7a lift up the inverter and then hang it on the bracket see Figure ...

Page 19: ...15 3 7b c Make sure the inverter is securely fixed on the bracket Figure 3 7a Mounting inverter on the bracket Figure 3 7b Mounting inverter on the bracket Hand Grab ...

Page 20: ...16 Figure 3 7c Mounting inverter on the bracket f Put the two removed panels back and secure them with 4 M4 12 bolts on each side as shown in Figure 3 8 Figure 3 8 Securing panels on both sides ...

Page 21: ... optimal performance of the inverter please read the following guidelines before DC connection a First make sure that the maximum open circuit voltage of the PV modules is lower than 600Vdc under any conditions b The No 10 12AWG copper cored soft cables are recommended for DC input connection c The inverter has 2 MPPTs with 4 DC input strings Ensure that the Max DC input current of each string doe...

Page 22: ...ure 3 11 Figure 3 11 Terminal crimping of DC input c The order of cable connection from left to right is PV1 PV1 PV2 PV2 Connect the PV1 and PV2 to the corresponding fuse socket of the negative pole and connect the PV1 and PV2 to the corresponding fuse socket of the positive pole as shown in Figure 3 12 Figure 3 12 Wire connection of DC input ...

Page 23: ...put a Strip the skin 0 4 inch off the cables as shown in Figure 3 14 Figure 3 14 Diagram for wire stripping of AC output c Crimp the terminal as shown in Figure 3 15 Figure 3 15 Diagram for terminal crimping of AC output 3 Cable making for grounding a The Gnd cable Equipment grounding conductor is recommended to be green or green with continuous yellow stripes per National Electrical Code Strip th...

Page 24: ...al crimping of grounding conductor 3 Connection of AC output and ground cables a Connect the L1 L2 L3 and Neutral AC output cables to the corresponding terminals of the socket on the PCB board b Connect the Gnd cable with a M5 nut at the marked place on the lower right side of the Wiring box as shown in Figure 3 18 a The Gnd cable can also be connected to the copper stick as shown in Figure 3 18 b...

Page 25: ...21 Figure 3 18 a Diagram of AC output and ground cable connection Figure 3 18 b Diagram of AC output and ground cable connection ...

Page 26: ...ter is to connect the RS485 communication bus cable through the RS485 1 or RS485 2 port of the inverter directly Wiring requirement of RS485 1 2 is shown in Table 3 9 Table 3 3 RS485 1 2 wiring requirement 2 The wires are labeled 1 8 from left to right as shown in Figure 3 19 Figure 3 19 Diagram of RS485 1 2 wiring No Color Function 1 White orange 485 2 Orange N C 3 White green 485 4 Blue N C 5 Wh...

Page 27: ...he RS485 network connection as shown in Figure 3 20 Other communication topologies such as the star networks are not recommended 1 Datalogger 2 N Figure 3 20 RS485 connection between inverters and datalogger 4 A terminal resistance of 120 ohms connected between Pin 1 and Pin 3 of RS485 1 2 of the last inverter in the multiple inverters string and data logger as shown in Figure 3 20 is recommended ...

Page 28: ...ation card supports firmware upgrade by USB disk a Ethernet communication 1 Install the communication card and fasten the 4 screws see Figure 3 22 INSTRUCTION Please remove the communication cables in Figure 3 21 before installing the optional communication card NOTICE Please install the communication card in the wiring box as per the requirement of ESD to avoid damaging the card ...

Page 29: ...Install the Ethernet card 2 Crimp the communication cable as shown below Figure 3 23 Diagram of Ethernet wiring Table 3 4 Ethernet wiring requirement No Color 1 White orange 2 Orange 3 White green 4 Blue 5 White blue ...

Page 30: ...26 3 Connect the communication cables as figure 3 24 a or b Figure 3 24 a Cable connection of Ethernet communication 6 Green 7 White brown 8 Brown ...

Page 31: ...The factory default IP address is 192 168 1 100 You may check the IP address by the finder exe software Use the Web Page function embedded in the Ethernet card to input the effective IP address in the IE address bar such as 192 168 1 100 Then the user can set up the internet parameters and check the real time information of inverter etc ...

Page 32: ...bee card in the wiring box and fasten the screws as follows Figure 3 26 Install the Zigbee card 2 Install and fasten the cable gland from the inside of the wiring box as follows NOTICE Please install the communication card in the wiring box as per the requirement of ESD to avoid damaging the card ...

Page 33: ...re 3 27 Fix the cable gland 3 Fix the antenna on the bottom of the wiring box Fasten the two screws and put the antenna cable through the cable gland see Figure 3 28 Figure 3 28 Installation of Zigbee antenna ...

Page 34: ...ches up to 6561 feet The Zigbee communication is an excellent choice for the onsite where the communication cables are inconvenient to pave The factory default configuration of ZigBeeCard is transit route mode The communication frequency is 2 480GHz Network ID is 0xFF The transmit mode is Master slave and the communication baud rate is 9600pbs 5 Connect the communication cables as follows ...

Page 35: ...sed holes on the cable gland with waterproof stick and fasten the cap of the cable gland Figure 3 31 Plug waterproof stick into the unused hole For more information about CPS monitoring solutions please visit www chintpower com na or contact our after sales service center ...

Page 36: ... normal and the ambient temperature is within allowable operating range 4 2 Shut down Manual shutdown Normally manual shutdown is not required It can be shut down manually if repair or maintenance is required Move the cursor from the main operation interface to 4 Setting Press ENT and input the password PAGEUP RIGHT PAGEDOWN LEFT to access the submenu 1 ON OFF Move the cursor to OFF and press ENT ...

Page 37: ...ult indication interface for normal operation In this mode the inverter converts the power generated by PV modules to AC continuously and feeds into the power grid 3 Standby mode as shown in Figure 4 3 The inverter will turn into standby mode when the output voltage and power of PV modules do not meet the startup conditions or PV voltage and input power are lower than the set point The inverter wi...

Page 38: ...lt according to the instructions SPICommErr Figure 4 4 Fault indication interface 4 4 Grid connection and power generation The grid connection and power generation process of CPS SC14KTL DO US 208 is automatic It will check constantly whether AC power grid meets the grid connection and power generation conditions At the same WARNING All the installation and cable connections should be performed on...

Page 39: ...rate power again when the voltage of PV modules is stable and higher than the set point 4 5 Fault shutdown The inverter will be shut down automatically when the PV power generation system fails such as output short circuit grid overvoltage undervoltage grid overfrequency underfrequency high ambient temperature or internal malfunction of the machine The causes of fault can be identified based on th...

Page 40: ...ase working power supply and then reboot the system 3 Contact after sales service personnel 2 SPICommErr Definition Communication inside inverter fails Possible causes 1 Communication circuits inside inverter are loose 2 LCD software problem 3 Inverter software problem Recommended solutions 1 Observe for 5 minutes and see whether the alarm will be eliminated automatically 2 Turn off 3 phase workin...

Page 41: ... reboot the system 3 Contact after sales service personnel 4 ExtFanErr Definition The visible fan from outside view is working abnormally Possible causes 1 Fan is blocked 2 Fan service life has expired 3 Fan socket connecter has poor contact Recommended solutions 1 Observe for 5 minutes and see whether the alarm will be eliminated automatically 2 Check for foreign matters on fan blades 3 Switch of...

Page 42: ...rter is too high 2 Fan is blocked 3 Cooling is affected because of incorrect installation Recommended solutions 1 Confirm that external ambient temperature is within the specified range of operating temperature 2 Check whether radiation air inlet is blocked 3 Whether radiation fan is blocked 4 Check whether the location of installation is appropriate or not 5 Observe for 30 minutes and see whether...

Page 43: ...nd power grid is disconnected or has abnormalities 4 Contact after sales service personnel 3 GridF OutLim Definition Grid voltage frequency is abnormal or power grid is not detected Possible causes 1 Grid frequency has abnormalities 2 Cable connection between the inverter and the grid is poor Recommended solutions 1 Observe for 10 minutes and see whether the alarm will be eliminated automatically ...

Page 44: ...the PV input switch wait for 5 minutes and then turn on the switch again 4 Contact after sales service personnel 5 PV1 2 Reverse Definition PV module is connected inversely Possible causes PV positive pole and negative pole are connected inversely Recommended solutions 1 Check whether positive pole and negative pole are connected inversely 2 Contact after sales service personnel 6 GFCI Err Definit...

Page 45: ...xceeds the specified range Possible causes Air humidity is high Recommended solutions 1 Observe for 10 minutes and see whether the alarm will be eliminated automatically 2 Check insulation of PV system 3 Contact after sales service personnel 8 IntProtect0010 01 80 Definition Internal protection of the inverter Possible causes Protection procedure occurs inside the inverter Recommended solutions 1 ...

Page 46: ...1 The inverter can be forced to restart once if it is required by operation and if it is confirmed that there is no other problem 2 Contact after sales service personnel INSTRUCTION The actual display of PV VoltOver is PV1VoltOver or PV2VoltOver The actual display of PV Reverse is PV1Reverse or PV2Reverse ...

Page 47: ...king power light Light on Energized control panel starts to work Light off Power supply not working RUN Grid tied operation indication light Light on In grid tied power generation state Flash Derated running status light up 0 5s light off 1 6s Light off In other operation status or power supply not working GRID Grid status indication light Light on Grid is normal Flash Grid fault light up 0 5s lig...

Page 48: ...s Right 1 when setting parameters 5 2 Operation state Table 5 1 indicates the definitions of LED i e indicates the information of the inverter s operation state It indicates that the system is energized and under DSP control when POWER lights up RUN will light up when the inverter detects that the grid connection conditions meet the requirements and power is fed into the grid RUN will blink if the...

Page 49: ...d up when an internal fault occurs 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 5 3 1 Interface types 1 The LCD interface starts with the company logo once the system is energized as shown in Figure 5 2 Figure 5 2...

Page 50: ... 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 3 stand by mode as shown in Figure 5 4 normal operation mode as shown in Figure 5 5 the switching time between a and b is 5 seconds and fault mode as shown in Figure 5 6 The default indication interface mainly indicates PV voltage...

Page 51: ...easurements 2 Alarm 3 History 4 Setting 5 Power PF 6 Power Control Figure 5 7 Contents indicated on the main operation interface The main operation interface of LCD screen has 6 menus i e 1 Measurements 2 Alarm 3 History 4 Settings 5 Power PF and 6 Power Control The users may select options with PAGEUP and PAGEDOWN and then press ENT to confirm selection The users can return to the default indicat...

Page 52: ... 8A Upv2 358 0V Ipv2 20 0A Pdc 14 3KW Figure 5 8 Operation information indication 5 3 4 Alarm 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 ENT to check out the specific fault information as shown in Figure 5 9 ...

Page 53: ...istory data is available to be found in 2 Recent Data menu All variable names in the data comply with the content in 1 Measurements menu of the main interface The users can select the 2 Recent Data 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 ...

Page 54: ...s ENT to input the password PAGEUP RIGHT PAGEDOWN LEFT Then you can access the menu to set up the parameters There are 7 submenus in 4 Setting 1 Power ON OFF 2 Language 3 Sounds 4 Systime 5 Commun 6 MPPT Scan and 7 ARC Setup 1 The inverter can be started and shut down with 1 ON OFF menu Move the cursor to ON and press ENT ON State will then be indicated at the bottom of LCD screen move the cursor ...

Page 55: ... of MPPT scan by pressing LEFT or RIGHT Press ENT to confirm the selection When the MPPT scan is enabled the inverter will scan the MPPT automatically according to the scheduled cycle 2 Cycle min is the second submenu used to set the cycle time of MPPT scan Move the cursor to the submenu press ENT and use LEFT and RIGHT to set the cycle time The range is 30 540 and the unit is minute Press ENT to ...

Page 56: ...larmBeep Disabled Address 2 BaudRate 3 1 2400 2 4800 3 9600 4 19200 1 Enable 2 Cycle min 60 3 Manual ARC Operation Enable ARC Clear CleraErr Figure 5 11 System setup menu and submenu 5 3 7 Power PF Move the cursor to 5 Power PF in the main interface Press ENT to access and check the parameters of ActivePower and PowerFactor as shown in Figure 5 12 The user can set the parameters of the two options...

Page 57: ...ntrol menu as follows ActivePower 100 Reactive Mode PF P Figure 5 13 Power control menu The active power parameters are adjustable from 0 to 100 0 in the ActivePower menu You can select the specific reactive mode in the ReactiveMode menu The ReactiveMode menu has 6 submenus Figure 5 14 including 1 None 2 Dispatch 3 Q Set 4 PF Set 5 PF P Set and 6 Q U Set ...

Page 58: ...mote change order including ActivePower PF and Q values 1 None 2 Dispatch 3 Q Set 4 PF Set ActivePower 100 0 ReactiveMode None Figure 5 15 Enable the dispatch function 3 Q Set Set the Q mode Note Change the reactive power by adjusting the Q value reactive compensation 4 PF Set Set the PF mode Note Change the reactive power by adjusting the PowerFactor 5 3 9 System protection parameters setup By pr...

Page 59: ...xI V Class I Max grid voltage 224 0 228 8 249 0 2 VmaxTripTI S Class I Max trip time 0 08 1 00 600 00 3 V MinI V Class I Min grid voltage 104 0 183 187 0 4 VminTripTI S Class I Min grid voltage trip time 0 08 2 00 600 00 5 V MaxII V Class II Max grid voltage 0 249 6 485 0 6 VmaxTripII S Class II Max grid voltage trip time 0 08 0 16 600 00 7 V MinII V Class II Min grid voltage 100 0 104 183 0 8 Vmi...

Page 60: ...tup voltage 150 0 295 310 0 20 SoftStep KW S Soft step 0 1 0 1 1 2 2 Restart menu If an internal fault shutdown happens a severe fault has occurred inside the inverter The user may perform a force restart once in this menu if the user needs to restart the inverter 3 3 Recover menu the manufacturer s parameter default value can be INSTRUCTION The Restart function is effective only when the fault In...

Page 61: ...s required to clear the records 1 SysPara 2 Restart 3 Recover 4 ClrErrRecd GridV Max V 208 GridVmaxTripT S 0 20 Pls Input Pwd Pwd Error Pls Input Again Wrong Pwd GridF Max Hz 60 2 FmaxTripTI S 0 20 Initialization Restoring Success Failure If yes If no Are You sure Restarting Success Failure If yes If no FaultOperated FaultOperated ClearErrors Success Figure 5 14 System parameter setup ...

Page 62: ...x Input Current Imp 50A 25A per MPPT Max short circuit current limit per MPPT 45A Number of DC Inputs and Fuses 8 fused conductors 4 per MPPT DC Disconnection Type Load rated DC switch AC Output Rated AC Output Power 14kW Max AC Output Power 14kW Rated Output Voltage 208Vac Output Voltage Range 183 228Vac Grid Connection Type 3Φ N PE Max AC Output Current 39A Rated Output Frequency 60Hz Output Fre...

Page 63: ...s Operating Temperature Range 13 F to 140 F 25 C to 60 C derating from 122 F 50 C Operating Humidity 0 95 non condensing Operating Altitude 6562ft 2000m derating from 4921ft 1500m Audible Noise 55db Display and Communication Display LCD LED Communication RS485 Mechanical Data Dimensions WxHxD 21 4x41 7x8 5in 544x1060x215mm Weight 141lbs 64kg Safety Safety and EMC Standard UL1741 2010 CSA C22 2 NO ...

Page 64: ... 40 60 80 100 60 120 180 240 300 540 600 PV Voltage V Po Pn Figure 6 1 DC voltage de rating curve Note 2 The output power of CPS SC14KTL DO US 208 inverter de rates when the environmental temperature is higher than 122 50 See Figure 6 2 Tamb 122 140 20 40 60 80 100 Po Pn 50 60 Figure 6 2 Environmental temperature de rating curve ...

Page 65: ...this product is specified in the contract otherwise the warranty period 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 ...

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