Grid PV Inverter - Glen Clark & Co
Contents
1. 220VAC 50Hz and single phase B Open the breaker or fuse between PV Inverter and utility C For Inverter CMS 1500 2000 or 2800 connect AC wires as follows Edition 2 0 2010 06 Female insert with coupling ring Pressing screw PG 13 5 gt Insert utility wires through cable gland Connect wires according to polarities indicated on terminal block L LINE brown or black N Neutral blue and G system ground yellow green Fasten the gland plate with attached screws Twist the gland so that the cable is firmly fixed Refer to left figure gt gt gt gt Insert Line wire to Pin L Neutral wire to Pin N and Ground wire to Pin G gt Suggested cable width for AC wire we etm Taco gt lt 14 1 5 4 Connect to PV Panel DC input A CMS 1500 Make sure the maximum open circuit voltage Voc of each PV string 8 Edition 2 0 2010 06 5 6 THT THT Utility EEN is less than 450VDC UNDER ANY CONDITION B CMS 2000 2800 Make sure the maximum open circuit voltage Voc of each PV string is less than 50 0VDC UNDER ANY CONDITION C Use MC Multi contact connectors for PV array terminals D Connect the positive and negative terminals from the PV panel to positive terminals and negative terminals on the PV Inverter Each DC terminal on Inverter can withstand 20Aoc E Before connecting PV panels to DC terminals please make sure the polarity is correct Incorrect pola2. designed to meet all safety requirements some parts and surfaces of Inverter are still hot during operation To reduce the risk of injury do not touch the heat sink at the back of the PV Inverter or nearby surfaces while Inverter is operating Fixed on the wall A Select a wall or solid vertical surface that can support the PV Inverter B Inverter requires adequate cooling space Allow at least 20cm space above and below the inverter C Using the mounting frame as a template drill 4 holes as illustrated in the following figures a ee EN Edition 2 0 2010 06 D Fix the mounting frame as the figure shows Do not make the screws to be flush to the wall Instead leave 2 to 4mm exposed 3 E Hang the inverter on the mounting frame F 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 Ve d Check the secure mounting of the PV Inverter by trying to raise it from the bottom The PV Inverter should remain firmly attached e Select the installation location so that the status display can be easily viewed f Choose a strong mounting wall to prevent vibrations while inverter is operating Connecting to the grid AC utility A Measure grid utility voltage and frequency It should be 230VAC or
3. from CMS Grid PV Inverter are a highly reliable products due to their innovative design and perfect quality control Such inverters are 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 lf you encounter any problems during installation or operation of this unit first check this manual before contacting your local dealer or representative Instructions inside this manual will help you solve most installation and operation difficulties Edition 2 0 2010 06 1 Content CMS 1500 CMS 2000 and CMS 2800 Design Overview Front View Bottom View OO LCD Display Operation LED Showing the inverters status Solar panel input RS232 RS485 Utility AC Connector Opening the package After opening the package please check the contents of the box It should contain the following Edition 2 0 2010 06 etter mart Monitor software disk 1 Optional Before starting installation please consider the following items This unit is designed for outdoor usage IP65 Do not expose the PV Inverter to direct sunlight Direct sunlight increases the internal temperature that may reduce conversion efficiency v Check the ambient temperature of installation is within specified range 20 55 C v The AC grid voltage is between 190 and 260VAC 50Hz v Qualified personnel are perfo
4. may consist of electrical breaker fuse and connecting terminals To comply with local safety standards and codes the connection system should be designed and implemented by a qualified technician D Utility Referred to as grid in this manual is the way your electric power company provides power to your place Please note that Inverter can only connect to low voltage systems namely 220 230VAC 50HZ 3 Modes of operation There are 3 different modes of operation 1 Normal mode In this mode Inverter works normally Whenever the supplied power from PV panel is sufficient voltage gt 150VDC Inverter converts power to the grid as generated by the PV panel If the power is insufficient voltage lt 100VDC Inverter enters a waiting state Whilst waiting Inverter uses just enough power from the PV panel monitor internal system status In normal mode the green LED is on 2 Fault mode The internal intelligent controller can continuously monitor and adjust the system status If Inverter finds any unexpected conditions such as grid problems or internal failure it will display the information on its LCD and light up the red Fault LED 3 Shutdown mode During periods of little or no sunlight Inverter automatically stops running In this mode Inverter does not take any power from the grid The display and LED s on the front panel do not work Notes Operating Inverter is quite easy During normal operati
5. Grid PV Inverter CMS 1500 CMS 2000 CMS 2800 Installation and Operation Manual Beloen 0 6 iol ie e ane Or 3 L CONE 0 een re rc eee em ern eee ee eee ee eee 4 2s NAS TAM e a A E E E E E A E T E A A 5 G AO e E EA 5 DY FCG Ol Cie Wy alll rE A nootudeines eeeterduaesesneamenasde 6 3 Connecting to the grid AC Utility eccccccccsseecceeeeeseceeeseeeeeeeeesseeeeeeessseeseeeeeeeeenes 7 4 Connect to PV Panel DC iNput csseccccssssececcecessececsecessesesseceseesessecnsssesseenassessees 8 PEKNE een ne at aren ee T 9 O SVS CC Ml Dr ai cocisactese cesses vescttersactoteease cea E E 9 3 Modes or OSL ANIC N sesno E 10 t Nona MOE srera EE eat crasaeee seen easiest nesesaenco eeesensenceenaepenoe 10 2 os 2 OE eee ree E A ete nae eee one 10 By SVAN COV OC e seec nes seca pansecad vena van samusseccussiacaieoeadaduwnscaaenamedseaevanseasseniendsponsae 10 A Inverter SUING eorn nace ane cadisonamtissnecnastiienid bac osgece seni A E ea aes 12 De SO IMMUNE ONS eet scerrat eee estes uaecaaes toe cater acecd estaba E E E toa raiee sect ecdene 12 1 COMMUNICATIONS software INSTFUCTIONS cccccccccesseeccceeeeseeeecseeesecceeeeeeeeeeeeseeeeeeeetegs 12 ZY AVVO CON peccassirsraectnsin A A 13 3 Detailed iNtormati O hesseni se acne esse ues 13 PeO 6 19 sacl AOO E aa E EE E N E mer ee reee 13 DSCC CACO ea N 15 2 Edition 2 0 2010 06 Before you start Congratulations on choosing CMS Grid PV Inverter the products
6. d to operate the control circuits Edition 2 0 2010 06 14 7 Specifications a CMS 1500 CMS 2000 CMS 2800 Specifications Input data Max DC power 3160W Max DC voltage 500V PV voltage range MPPT 110V 480V Max input current 13A DC voltage ripple 5 lt 5 Max number of strings 2 Ground fault monitoring yes Reverse polarity protection short circuit diode Output data eee Max AC power 1650W 3000W 1500W 2800W lt 3 lt 3 lt 3 230V 230V 230V 95 50 96 50 96 50 94 50 95 50 95 50 IP 65 IP 65 IP 65 415 376 125 415 376 125 415 376 125 14 8KG 14 8KG 14 8KG Nominal AC output THD of AC current Grid voltage range Grid frequency range Power factor Short circuit proofing Efficiency Max efficiency Euro ETA Protection rating 1 yes Width height depth mm Weight a 15 Edition 2 0 2010 06
7. display All possible messages are shown in the following table Display Disconnect Grid Grid V Fault Grid F Fault Low Isolation High PV Voltage High Ground High Temperature 2 5V Reference Voltage Inside has problem 5 Communications 1 Communications software instructions Connect PV Inverter and PC by RS232 wire Open monitoring software PV Inverter 12 Edition 2 0 2010 06 COM exe If you use PV Inverter COM exe Open the PV Inverter COM txt file in the path C WINDOWS The file records the user s software and the main parameter settings click on the main interface and the Setting button enter the password szddz into the user settings interface set the interface as follows based on actual field conditions Click the Set button and exit 2 Monitor After setting the software the user can monitoring the inverter The right side of the main interface is the detailed information of inverter ae P iInverterCoOn P Inverter Inverter Net Inverter Sel History Data Error History SEARRE 0 0 0 0 D 0 0 7894561230 Fault 187 5 0 English 3 Detailed information Detailed setting method and other functions refer to PV Inverter COM Manual in the CD 6 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
8. gt If any problems arise the red Fault LED on the front panel turns on and the LCD displays the relevant information Please refer to the following table for a list of 13 Edition 2 0 2010 06 potential problems and their solutions Ground Fault Grid Fault No Utility PV over Inverter Voltage Failure Consistent Fault 1 The ground current is too high 2 Unplug the inputs from the PV generator and check the peripheral AC system 3 After the cause is cleared re plug the PV panel and check PV Inverter status 4 If the problem persists please call service 1 Wait for 5 minutes if the grid returns to normal PV Inverter automatically restarts 2 Make sure grid voltage and frequency meet the specifications 3 If the problem persists please call service 1 Grid is not connected 2 Check grid connection cables 3 Check grid usability 1 Check the open PV voltage see if it is greater than or too close to 500VDC 2 If PV voltage is less than 550VDC and the problem still occurs please call local service 1 Disconnect PV or PV from the input restart the PV Inverter 2 If it does not work call service gt lf there is no display on the panel please check PV input connections If the voltage is higher than 150V call your local service gt During periods of little or no sunlight the PV Inverter may continuously start up and shut down This is due to insufficient power generate
9. on Inverter runs automatically 10 Edition 2 0 2010 06 However to achieve maximum conversion efficiency of Inverter please read the following information a Automatic ON OFF 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 gt Standby The PV string can only provide just enough voltage to minimum requirements of the controller gt Waiting When the PV string DC voltage is greater than 100V Inverter enters a waiting state and attempts to connect to the grid gt Normal operation When PV string DC voltage is greater than 150V Inverter operates in the normal state b Starting up display sequence Once the PV power is sufficient Inverter displays information as shown in the flow chart as follow User Xxxx gt Spec xxxx Model x xkW SW Version xx xx gt Checking xxS Normal State Pac xxx x W c LCD backlight control To save power the LCD display s backlight automatically turns off after 30 seconds gt LCD display The first line of LCD State Display content 1 Edition 2 0 2010 06 l Checking xxS System checking Wait State i AC xxxV xx xHz 2 The Grid voltage and frequency 4 Inverter Status 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
10. rity connection could permanently damage the unit Check short circuit current of the PV string The total short circuit current of the PV string should be less than the inverter s maximum DC current F 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 Check A When the PV panels are connected and their output voltage is greater than 100 VDC _ but the AC grid is not yet connected the message on the LCD display produce the following messages in order MODEL XkW gt Waiting gt Disconnect grid The display repeats Disconnect grid and the RED fault LED turns on B Close the AC breaker or fuse between PV Inverter and grid The normal operating sequence begins C Under normal operating conditions the LCD displays Pac xxxx xW That is the power fed to the grid The green LED turns lights up D This completes the check System Diagram Connection system PV panel Edition 2 0 2010 06 A PV Panel Provide DC power to inverter B CMS Converts DC Direct Current power from PV panel s to AC Alternating Current power Because Inverter is grid connected it controls the current amplitude according to the PV Panel power supply Inverter always tries to convert the maximum power from your PV panel s C Connection system This interface between Utility and PV Inverter
11. rming the installation v Adequate convection space surrounds the inverter v Inverter is being installed away from explosive vapors v No flammable items are near the inverter it is recommended that Inverter is installed where the ambient temperature is between 0 40 C 2 Installation 1 Safety instructions A Do not remove the casing Inverter contains no user serviceable parts Refer servicing to qualified service personnel B Both AC and DC voltage sources are terminated inside the PV Inverter Please disconnect these circuits before servicing C 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 D Energy stored in this equipment s DC link capacitors presents a risk of electric 5 Edition 2 0 2010 06 2 shock Even after the unit is disconnected from the grid and photovoltaic panels high voltages may still exist inside the PV Inverter Do not remove the casing until at least 10 minutes after disconnecting all power sources E This unit is designed to feed power to the public power grid utility only Do not connect this unit to an AC source or generator Connecting Inverter to external devices could result in serious damage to your equipment F Carefully remove the unit from its packaging and inspect for external damage If you find any imperfections please contact your local dealer G Although
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