CMS 2000 - Greenforce Solar
Contents
1. indicate the supplying power to the grid Press the Function button on the front panel and release it Information during immediately to see additional information Each start up Edition 1 0E 2008 09 subsequent press changes the display The display sequence is shown in panel LCD display sequence figure on next page 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 LCD backlight control To save power the LCD display s backlight automatically turns off after 30 seconds To enable it press the Function key again Contrast control A natural phenomenon of LCD displays is the background color is darker at higher temperatures At higher temperatures the characters may not be easily identified In this case the adjust the contrast as follows a Press the Function key repeatedly until Set Contrasti Contrast shows in the display b Hold the Function key down for more than 2 seconds until display shows Set contrast and a bar graph on the right Lighter Set Contraste Darker seconds the display will show 1 Watt xxxx xW Watt xxxx xW Done e Setting completed c Press the Function key repeatedly until the dis2. 8 One CMS2000 Inverter Instruction manual One mounting frame 4 mounting screws 2 safety lock screws One cable gland for AC cable One AC socket assembly in CMS Inverter2000 One service card Before installation Before starting installation please consider the following items This unit is designed for indoor usage Do not expose the unit to wet or moist conditions Do not expose the PV Inverter to direct sunlight Direct sunlight increases the internal temperature that may reduce conversion efficiency Y NN SS Check the ambient temperature of installation is within specified range 20 55 C The AC grid voltage is between 200 and 270VAC 50 60Hz Electric utility company has approved the grid connection Qualified personnel are performing the installation Adequate convection space surrounds the inverter Edition 1 0E 2008 09 Y nverter is being installed away from explosive vapors Y No flammable items are near the inverter gt Inverter can be installed and operated at locations where the GN ambient temperature is up to 55 C However for optimal operation itis recommended that Inverter is installed where the ambient temperature is between 0 40 C Edition 1 0E 2008 09 Mounting Inverter to the wall 1 Select a wall or solid vertical surface that can support the PV Inverter 2 Inverter requires adequate cooling space Allow at least 20cm space above and below me in
3. panel display All possible messages are shown in the following table Display information Operating conditions Message in English Description Normal working status Power off No display PV inverter is totally shutdown Vpy lt 0V Standby Standby 70V lt Input voltage lt 100V Initialization amp waiting Waiting Input voltage range 100 150V during start up After PV voltage is higher than 100V inverter is waiting for feeding to grid Check grid Checking When PV voltage gt 150V inverter is checking feeding conditions Feeding grid MPPT Normal State Inverter is feeding power After 10 seconds of this display LED will show wattage FLASH Instantaneous Output power FLASH Pac xxxxW FLASH firmware The real time output power in xxxx W Accumulated energy information Energy xxxxxxkWh Total energy to has been fed to grid since inverter was installed Grid voltage Vaczxxx xV Grid voltage in xxx x VAC Grid frequency Frequency xx xHz Grid frequency in xx x Hz Feeding current AC Current xx xA Feeding current amount in xx x A PV array voltage Isolation failure Vdc xxx xV Isolation fault Input voltage from PV array xxx x VDC Earth fault of the PV panels or failure of surge voltage protection GFCI active Ground fault Edition 1 0E 2008 09 Leakage current on ground 23 cond
4. card is used to work with Inverter s EZ logger and in multiple monitoring applications CMS plan to release other communication cards in the near future For information of card details please refer to the user manual of each individual card To get the latest information please contact with your local dealer or visit our website 3 Firmware upgrade To keep the firmware up to date use the RS232 port and supplied program to upgrade firmware To do this please contact Edition 1 0E 2008 09 8 your local service 5 To prevent risk of damage it is recommended that only authorized M personnel perform firmware upgrades Edition 1 0E 2008 09 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 Should 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 potential problems and their solutions Isolation Fault Possible actions Check the impedance is between PV amp PV and the PV Inverter is earthed The impedance must be greater than 8MQ If the problem persists please call service Ground Fault The ground current is too high Unplug the inputs from the PV generator and check the peripheral AC system After the ca
5. wires according to polarities indicated on terminal block L LINE brown or black N gt Neutral blue and gt 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 e 4 For Inverter 2000 connect AC wires as follows Disassemble female socket Connect AC wires to connection socket as indicated Female connector Male connector e Insert Line wire to Pin L Neutral wire to Pin N and Ground wire to Pin Edition 1 0E 2008 09 Assemble the socket again and Pin L Phase E replace Twist the coupling ring to the PV Inverters receptacle Make Pin N Neutral sure it is correctly matched To prevent risk of electric shock ensure the ground wire is properly earthed before operating the au PV Inverter 5 Suggested cable width for AC wire Model Diameter q dini Area mm CMS2000 lt 16 Connect to PV Panel DC input 1 Make sure the maximum open circuit voltage Voc of each PV string is less than 500Vpc UNDER ANY CONDITION We recommend V less than 360Vpc with ambient temperature of 25 C Use MC Multi contact connectors for PV array terminals 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 20Apc 2 Before connecting PV panels to DC terminals pl
6. CMS2 0 kW Grid PV Inverter Installation and Operation Manual Version 1 0E 2008 09 CMS 2000 Y Grid Interactive Inverter Contents LIC AI dam 3 Safety UNSUTUCTIONS 4 Limited Warranty 6 EEUU 7 ME T m NO 8 3 Installation instructions cccscssssssssessssscssesssscssscesscecssecsseessecsesssesseesaseeeees 9 Opening the package ssssssssssseseseeeeeenee nennen 9 Before installation oiii ciar cecinere eene Ere ntur p cone Ed 9 Mounting Inverter to the wall 11 Connecting to the grid AC utility seseeeeeene 14 Connect to PV Panel DC input 15 elTe domo ei sive da 16 4 System DIAgraM 17 5 Operating Your PV Inverter scccssscsssscssssssssscesscssssscsssecseeccsscssseessssessseeees 18 Modes Of OperatiON ooonocccnnnnccccononcncnnnnncncnnonncnnnnonncnnnnnnncnnn naar cnn nnannennnnns 18 Front Panel arrangement nocccconocccccnnonncccononcnnnnnnnncnnnnnnnnnnnnnn araia 18 Front Panel eet aia 19 Maximum Power Point Tracking MPPT sessen 22 Accuracy Of the reading oocconnncccnnnncccnnnnnncnonnnnnnncnnnn nono nnnnnn rca 22 Edition 1 0E 2008 09 6 InVeFleE SEGUUS siiscsessiessvcctaasiscescssss essescsecscassssodessssecsesss essesvecsscdssesesesssssessossvesse 22 Display information 23 7e Ono ER 8 Trouble shooting css ettet taste tion et
7. call your local service During periods of little or no sunlight the PV Inverter may continuously start up and shut down This is due to insufficient power generated to operate the control circuits Edition 1 0E 2008 09 36 Ko o Lo O O O ct o 5 a Convection 7W lt 35dBA Heat Dissipation ower consumption Electrical Model CMS2000 2000W 2200W 360Vpc 500Voc 250to 450Vog 100 to 500Vpc 10Apc 230VAC 50 60Hz auto selection frequency The auto selection is not available for some areas lt 3 gt 0 99 Maximum 7 gt 96 European 7 gt 95 IP 43 temperature 0 to 95 non condensing Heat Dissipation 1 Line 16 characters Information changeable by Function key on the panel RS232 standard RS485 optional Yes via RS232 O U omm Interface W upgrade WxDxH mm 350 302 120 ight kg 11 3 Product specifications are subject to change without notice D O Edition 1 0E 2008 09 aj
8. ease make sure the polarity is correct Incorrect polarity connection could permanently Edition 1 0E 2008 09 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 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 When the PV panels are connected and their output voltage is greater than 100 Vpc but the AC grid is not yet connected the message on the LCD display will produce the following messages in order MODEL XkW gt Waiting gt No Utility The display repeats No Utility and the RED fault LED turns on 2 Close the AC breaker or fuse between PV Inverter and grid The normal operating sequence begins 3 Under normal operating conditions the LCD displays Watt xxxx xW That is the power fed to the grid The green LED lights up 4 This completes the check Edition 1 0E 2008 09 4 System Diagram The typical connection diagram for the entire PV system is shown in the following figure Connection system 1 PV Panel Provide DC power to inverter 2 2 0kW PV Inverter 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 Pan
9. el power supply Inverter always tries to convert the maximum power from your PV panel s 3 Connection system This interface between Utility and PV Inverter 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 4 Utility Referred to as grid in this manual is the way your electric power company provides power to your place Please note that the Inverter can only connect to low voltage systems namely 220 230VAC 50 60Hz Edition 1 0E 2008 09 5 Operating Your PV Inverter Modes of operation There are 3 different modes of operation a 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 120VDC 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 Inverte
10. he scope of safety standards AS4777 amp AS3100 etc Acts of nature such as lighting fire storm etc The right to repair and or replace the unit is at the manufacturers discretion Any damages discovered during installation should be submitted via a written damage report within 5 working days of receiving the PV Inverter Otherwise not responsible for damages beyond the scope of this warranty Edition 1 0E 2008 09 1 Overview CMS2 0 kW Design Overview Front View Bottom View dojo LCD Disply Showing the inverter status Display information switch Operation LED Operation LED Utility AC connector Solar panel input RS485 SNMP Cover RS232 Cover Edition 1 0E 2008 09 2 Features Very high conversion efficiency gt 96 MPPT Maximum Power Point Tracking Higher power capacity than similar products of the same size Embedded LCD display showing complete status information Natural convection cooling Quiet fan less design Stylish modern casing Compact small profile High reliability and Easy to install Maintenance free Standard RS 232 optional RS 485 and others Embedded ENS meets AS3100 amp AS4777 No external GFCI breaker is required Edition 1 0E 2008 09 3 Installation instructions Opening the package After opening the package please check the contents of the box It should contain the following 1 N Oa onm
11. nia eei s seo tob as eere ipsae epa srs ense ZO O Specifications p O Electrical aereis e tete a is 30 Edition 1 0E 2008 09 efore you start Congratulations on choosing CMS2 0 kW Grid PV Inverter a product from CMS 2 0 kW 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 em installation and safe operation of this unit Be sure to read this manual carefully before using If 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 Thank you again for choosing our product Please keep this manual handy for quick reference Start enjoying your Inverter and your life Edition 1 0E 2008 09 Safety instructions e Risk of Electric Shock 1 Do not remove the casing Inverter contains no user serviceable parts Refer servicing to qualified service personnel Both AC and DC voltage sources are terminated inside the PV Inverter Please disconnect these circuits before servicing 2 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 capacitor
12. play s contrast is acceptable d Release the key for more than 10 Contrast setup Edition 1 0E 2008 09 58 Accumulated Feeding energy wattage Model information Operating status Contrast Adj LCD display sequence Edition 1 0E 2008 09 i Maximum Power Point Tracking MPPT A good PV inverter must be RUN ILU Maxim m power point able to convert the maximum ide dut Godd power from any PV panel Due to its advanced design the Inverter PV Inverter can track the maximum power from your PV panel in any condition When the displayed power on the LCD o cx o N o w o output does not change dramatically inverter is converting the maximum power from panels When the LCD power reading is significantly changing Inverter is tracking the power according to the varied sunlight When the PV panel s output is low the feeding DC power may GV drift slowly as does the AC power It is because PV Inverter is tracking maximum DC power continuously Accuracy of the reading The reading on the LCD is just for reference We do not recommend using the data for checking or testing of the system Normally its accuracy is around 4296 In all ranges of operation the accuracy is up to 15 Edition 1 0E 2008 09 3 6 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
13. r 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 Front Panel arrangement LCD Liquid Crystal Display CMS 2000 Gro fintwactye inverter Edition 1 0E 2008 09 Front Panel Operating Inverter is quite easy During normal operation Inverter runs automatically However to achieve maximum conversion efficiency of Inverter please read the following information 1 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 e Standby The PV string can only provide just enough voltage to minimum requirements of the controller e Waiting When the PV string DC voltage is greater than 100V Inverter enters a waiting state and attempts to connect to the grid Normal operation When PV string DC voltage is greater than 150V Inverter operates in the normal state In this state it feeds power to the grid Model XkW Inverter automatically stops when the PV power is ig not enough 2 Starting up display sequence Once the PV power ll is sufficient Inverter displays information as shown in the flow chart to the right J 3 Change display information During normal Normal State operation Inverter can show details about the T Watt xxxx xW PV Inverter The display is setup to automatically
14. s 3 Energy stored in this equipment s DC link capacitors presents a risk of electric 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 30 minutes after disconnecting all power sources 4 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 5 Carefully remove the unit from its packaging and inspect for external damage If you find any imperfections please contact your local dealer Edition 1 0E 2008 09 e Hot surfaces Although 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 Edition 1 0E 2008 09 Limited Warranty Inverter comes with a limited warranty This warranty includes all defects of design components and manufacturing Excluded from warranty are damages due to Breaking the product seal opening the casing Improper transportation and delivery Unqualified persons opening the unit Improper installation Unauthorized modification testing or repairing Use and application beyond the definition in this manual Application beyond t
15. st setting Set Contrast Edition 1 0E 2008 09 Setting the contrast of inverter 24 LCD display lock Lock Hold the present display message waing tor VIBEBIIHSPI AX The time for reconnect to grid reconnect to grid sec Firmware version Ver xX XX F W version information Setting Language Set Language Set up of the display language LED There are 2 LED s on Inverter one is green and the other is red Normally only the green LED switches on during operation Their indicated status is explained as follows 1 Power on green LED It lights to indicate that Inverter 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 Edition 1 0E 2008 09 7 Communications Inverter is equipped with a powerful communications interface and options Use Inverter s EZ 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 Inverter It is a DB9 socket The pin definition is Y 5 Functional Description N C TxD ol o o o po gt O 3 3 o 2 N C means No Connection 5 1 e S ec 9 6 2 Optional communications port This port is a very powerful extension Inverter can accept a special card designed for the port only The RS485
16. uctor is too high Grid failure Grid fault Grid measured data is beyond the specification voltage amp frequency No utility No Utility Utility is not available Input voltage too high Consistent failure PV over voltage Consistent fault Input voltage higher than the max input voltage The readings of 2 microprocessors are not consistent CPU and or other circuit do not function well could cause it Temperature too high Over temperature The internal temperature is higher than normal value Output relay failure Relay Failure The relay between inverter and grid is not functional Output DC injection too high DC INJ High Output DC injection too high EEPROM problem EEPROM Failure EEPROM inside has data access problem Communication between microprocessors problem SCI Failure The communication between MCU inside is abnormal DC bus voltage is too high High DC Bus The DC BUS inside is higher than expected DC bus voltage is too low Low DC Bus The DC BUS inside is lower than expected 2 5V reference voltage inside problem Ref 2 5V Fault The 2 5V reference inside are abnormal Output DC sensor abnormal DC Sensor Fault The DC output sensor is abnormal GFCI detection problem Model display GFCI Failure Model xkW The GFCI detection circuit is abnormal Inverter model xkW inverter LCD contra
17. use is cleared re plug the PV panel and check PV Inverter status If the problem persists please call service Grid Fault Wait for 5 minutes if the grid returns to normal PV Inverter automatically restarts Make sure grid voltage and frequency meet the specifications If the problem persists please call service No Utility Grid is not connected 2 Check grid connection cables Check grid usability PV over Voltage Check the open PV voltage see if it is greater than or too close to 500VDC If PV voltage is less than 500VDC and the problem still occurs please call local service Consistent Fault Edition 1 0E 2008 09 1 Disconnect PV or PV from the input restart the PV Inverter If it does not work call service 28 1 The internal temperature is higher than specified normal value 2 Find a way to reduce the ambient temperature 3 Or move the inverter to a cooler environment 4 f it is not effective call local service Over Temperature Relay Failure DC INJ High EEPROM Failure SCI Failure High DC Bus Low DC Bus Ref 2 5V Fault DC Sensor Fault GFCI Failure If there is no display on the panel please check PV input connections Disconnect ALL PV or PV Wait for few seconds After the LCD switches off reconnect and check again If the message reappears call your local service If the voltage is higher than 150V
18. verter 20CM SPACE lo 20CM SPACE 3 Using t the gt mounting trame asa tempais aril 4 holes as s illustrated i in the following figures 4 Fix the mounting frame as the figure shows Do not drive in the screws flush to the wall Instead leave 2 to 4mm exposed 5 Hang the inverter on the mounting frame Je X Edition 1 0E 2008 09 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 ES Y X it fits on to the bracket Yj al all c Insert safety lock screws Ly J A to the bottom leg to secure the inverter Edition 1 0E 2008 09 MAXI5L Screw Check the secure mounting of the PV Inverter by trying to raise it from the bottom The PV Inverter should remain firmly attached CN o _ Select the installation location so that the status display can be easily viewed Choose a strong mounting wall to prevent vibrations while inverter is operating Edition 1 0E 2008 09 Connecting to the grid AC utility 1 Measure grid utility voltage and frequency It should be 230VAC or 220VAC 50 60Hz and single phase 2 Open the breaker or fuse between PV Inverter and utility For Inverter connect AC wires as follows Insert utility wires through cable gland Connect
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