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BIGI-250 Installation Manual

1. VI Warning Symbols Used in This Manual nene n nnne nennen essen renis vi QE un Ob OY I T vii Gene ral Precautions out lee vii SE T ILE EST Vill System Overview 1 1 lil BIGE250 Overview 2 t2 Grid Med Syste MS coke iod le inn Gt hl n C e deo td do Gb lenti 2 Installation 4 2 Wnpacking INSpecuOns abd StOLa Ge aree ela Lil Eden e ade nad ale eds 5 5 2 92 Localo COnsIde ui cen Cad POR cuum dtes tua 6 2 4 Mounted Ventlatioll p RU EHE ed 7 2 2 Conduit Installation ati ONS see oiii ren devenire an top Seu Landa 8 Wiring Instructions 10 3 3 1 Installation Tools and Materials Tools Required 1 32 Sdraio iaia 1 3 2 Opening Closing the Enclosure DOOts iure lana ieri ia 12 5 4 Witesstzibe and Ranges oa rt tice bu RODEO a haa ais 15 3 4 1 AC Grid Wire Sizing and Rattigs i oco E e rebate ted iui 15 3 4 2 DC PV and Battery Wire Sizing and Ratings i 15 34 3 Control Wire Sizing and ats ee cios to Re ad etel 16 3 5 Hookup m toot sane 16 Sl m 16 EPOR Cie 17 18 SN ANE Gre TEE WIE SIZIN accenni 18 15 5 Ground Wiring TnstEeue HORIS uoo neci Reni seuss Enea ho
2. i 27 A E RS 2 33 Fistire 4 2 RS 292 Dis S Wie MS CUI ssi ia 34 Figure 4 3 RS 485 Half Duplex Dip Switch 5 5 34 Figure 4 4 RS 485 Half Duplex with Bias Dip Switch Settings i 35 19ute 4 5 5 455 Half Duplex Signal Pisco 35 Figure 4 6 RS 485 Half Duplex Dip Switch Settings w multiple slaves 35 Figure 4 7 RS 485 Full Duplex Wire Assignments i 36 ligure 4 9 R5 455 Pin 26 Figure 4 9 RS 485 Dip Switch Settings Inverter as a Slave ui 36 Figure 421 0 Modbus Functions Supported srl eee 37 Figure 4 11 Control Board and Interface I O Board Location iii 41 4411 0008 Rev 0 5 xi Contents Tables Table T ene aaa 15 Tables DC PV and Batterv Wife Specifications 15 Table Conttol Wire Spec Hean 16 Table 4 Conductor Size of AC System Grounding LL 18 Table 5 Conductor Size of Equipment Grounding L Li 19 Table 60BIGI 250 SPECICA MONS 47 xii 44
3. Device in Circuit Ahead of Equipment Conduit Aluminum or etc Not Exceeding Copper Clad Amperes Copper Aluminum 15 14 12 20 12 10 30 10 8 40 10 60 10 8 100 8 6 200 6 4 300 4 400 3 l Table Error Use the Home tab to apply 0 to the text that you want to appear here 5 Conductor Size of Equipment Grounding 3 6 2 2 PV DC Input For installations with PV arrays installed on the DC input port a ground wire for the DC circuit will be rated for at least 1 25 times the rated short circuit current of the installed PV array 3 6 3 Ground Wiring Instructions 3 6 3 1 Equipment Ground Connection The earth protective ground lug shown in Figure 3 7 can be used for equipment ground connection The ground supplied with the AC grid circuit typically can serve as this ground connection Verify local wiring and local codes before using the AC grid circuit ground as the system earth ground 3 6 3 2 Grid Circuit Ground Connection This ground is associated with the AC circuit connected to the grid port If the grid port is used connect the utility supplied ground to the earth protective ground lug shown in Figure 3 7 3 6 3 3 DC Circuit Ground Connection The negative terminals of two DC sources are connected together inside the BIGI 250 So floating both PV and battery is not allowed according to NEC When grounding one DC source s terminal the other must be left floating The DC circuit ground connection is done throu
4. Oria BIGI 250 Grounding BIGI 250 Default Grid Trip Settings 53 4411 0008 Rev 0 5 Contents Figures Fieure l i Configuration of BIGI 250 aeta dpa gu ue ana de epa ua uada dete te 3 Fisire2 lSideNViewo BIGI 250 lecci 5 Fisure 2 2 Front View OL DIOE25035 calca 6 6 Ventilation Clearances ay a3 ors eee ale ila ia 8 Figure 2 5 Optional Top Wire Access for Indoor Application ONlY iii 8 Figure 2 6 Pad Mounting and Conduit Hole Locations Access through bottom floor Top View 9 Figure 3 1 DC Battery and AC Disconnect Switch Shown in the On Position 13 l19ufe 2 27 Locked DOOL uude oa ertt pM MEI M MEI MID MU NUM D DUE 13 Fisure 3 3 PowerElectronies Hook upsBIGI250 _ Lilli 14 DC Winne Connections 20 Figure 3 5 AC Wiring Connections BIGI 250 eene 21 Figure 3 6 Isolation Transformer Wiring BIGI 250 i 22 Fieute 3 7 upra lalla 23 Figure 3 8 Digital input configuration Terminals on I O Board header J27 24 Figure 3 9 Digital Output I O board J27 terminal configuration i 24 Figure 3 10 Analog I O Board mounted in the left side of the enclosure 25 Figure 3 11 Analog Output Header J36 on I O Board
5. The Main Menu is accessed by pressing Esc from the Home Screen The Main Menu can also be accessed from any part of the menu structure by repeatedly pressing Esc until the Main Menu is reached again Reminder Pressing Esc while viewing the Main Menu will take you to the Home Screen and pressing Esc from the Home Screen will bring you back to the Main Menu The Main Menu contains a list of options Scroll to the desired option using the navigation knob and press Enter 30 4411 0008 Rev 0 5 Installation 4 1 3 1 Editing Parameters To edit any parameter navigate to that parameter within the menu structure until the cursor arrow is next to the parameter you want and press Enter If you have permission to edit that parameter at that time the parameter value will begin blinking Use the navigation knob to scroll the value of the parameter up or down to the desired value and then press Enter to save the new value The message Parameter Downloaded will appear briefly if the new value is saved successfully You can press Esc at any time while editing the value to abort the change and the parameter will remain at its previous value You will not be allowed to edit certain parameters at certain times for a number of possible reasons 1 The parameter is not allowed to be changed while the inverter is running 2 You have not entered a password appropriate for the level of access associated with th
6. Under frequency trip User settable slow threshold NA b sam Under frequency trip l User settable slow time UIS ne aaa a Under voltage trip fast AI Minimum Voltage 50 Not user settable threshold Over voltage trip fast AI Maximum Voltage 120 Not user settable threshold Over under voltage trip AI Outer Voltage Window Time 0 16 sec fast time Under voltage trip slow User settable threshold AI Sag Voltage 88 Over voltage trip slow User settable scad AI Surge Voltage 110 54 4411 0008 Rev 0 5
7. 0x0000 to OxFFFF 1 to 120 0x0001 to 0x00078 Error 4 2 3 11 Read Write Multiple Registers 23 0x17 This function code is used to write to one or more sequential registers and then in the same function call read one or more sequential register values This can be used to automatically confirm the register settings after a write The request specifies the read starting address number of registers to be read write starting address number of registers to be written and the data to be written The byte count specifies the number of bytes in the write data field The response contains the data from the group of registers that were read The byte count field specifies the number of bytes in the read data field Request Read Starting Address 0x0000 to OXFFFF Number of Registers to Read 1 to 118 0x0001 to 0x0076 N Registers written Response Read Byte Count 1 to 236 0x0001 to 0x00EC Read Register Values N x 2 bytes N Registers read Error Exception Code 01 02 03 or 04 4411 0008 Rev 0 5 39 Installation 4 3 Web Interface 4 3 1 Setup Note To use the Web Interface the user must install Java Runtime Environment version 5 0 or newer on the computer workstation This can be done by visiting http java com en download index jsp for instructions and for downloading and installing the Java software An optional external RJ 45 Ethernet jack with a weather seal cap 1s located on top of the enclos
8. set of contacts for further flexibility When the mapped value is logic 0 the NO terminal will be open and the NC terminal will be closed When the mapped value is logic 1 the NO terminal will be closed and the NO terminal will be open s 7 24VDC 24VDC Return 24 VDC 150ma max Figure 3 9 Digital Output I O board J27 terminal configuration 24 4411 0008 Rev 0 5 Installation 24V DC is supplied on the user I O terminal strip for use in setting up digital output signals As shown in the figure above this power supply can be used to turn the relay outputs into 0 24VDC digital voltage signals to power lighted indicators or the inputs of a facility control system An external power supply could also be used if a different voltage or current limit is required Caution Do not attach a load to the digital outputs that will exceed the 150 mA current rating Doing so could result in component damage on the I O board 3 11 3 Analog Inputs The system has 3 analog inputs that can be used to send analog signals to the inverter Each of the 3 signals can be configured either as a 0 10V voltage input or a 0 20mA current input Each of the inputs can be mapped to a number of parameters in the system and the range and scaling configuration for that mapping is configurable for each input individually The analog input signals are connected to J36 on the BIGI interface I O
9. terminated There are two ways to accomplish this Sk 1 Termination without bias For basic termination using K on board 120 Q the user can configure the piano switches on the I O board as shown in the table below The termination capacitor may be removed by setting switch 4 in the Down OFF position Switch I Up ON Shorts terminals 1 amp 3 Up ON Shorts terminals 2 amp 4 Up ON 120 ohm termination Down OFF O Down OFF O 7 Down OFF Down OFF fo Figure 4 3 RS 485 Half Duplex Dip Switch Settings 2 Termination with bias For more robust termination with voltage bias the user can configure the piano switches on the I O board as shown in the table below The termination capacitor may be removed by setting switch 4 in the Down OFF position 34 4411 0008 Rev 0 5 Installation Switch Position Comments 1 Up ON Shorts terminals 1 amp 3 2 Up ON Shorstermias2 amp 4 3 Up ON 1200hmtermination _ I l 2 2 5 Down 0FF Down OFF 7 8 Up ON Voltagebias Figure 4 4 RS 485 Half Duplex with Bias Dip Switch Settings Multidrop Connection The figure below shows a half duplex RS 485 connection for a device that is not located at either end of the bus One differential signal 1s used for both transmit and receive This corresponds to two pairs of wires with ea
10. 2 18888 TI 3 E Up ON 120 ohm termination 5 Termination capacitor 7 Down OFF fo 8 Down OFF Figure 4 9 RS 485 Dip Switch Settings Inverter as a Slave E 2 9 345676 6 ii If the inverter is not physically located at either end of the bus set all switches to Down OFF position 36 4411 0008 Rev 0 5 Installation 4 2 3 6 Supported Functions The following Modbus functions are supported and provide the functionality necessary to monitor and control the inverter remotely Function Description Code 03 0x03 Read Holding Registers 04 0x04 Read Input Registers 06 0x06 Write Single Register 16 0x10 Write Multiple Registers 23 0x17 Read Write Multiple Registers Figure 4 10 Modbus Functions Supported 4 2 3 7 Message Format Error Check The address field of a message frame contains 8 bits Each slave device 15 assigned a unique address in the range of 1 247 Master can communicate with any slave by inserting the appropriate address into the address field Also master can broadcast a message to all the slaves connected to the network by placing 0 into the address field When slave responds it places its address into the address field of a response message to indicate which slave responded The function code field of a message frame contains eight bits Valid codes are in the range of 1 255 decimal 0x00 to OxFF hexadecimal When a message is sent from a master t
11. 44 4411 0008 Rev 0 5 4411 0008 Rev 0 5 his page intentionally left blank Installation 45 BIGI 250 Specifications BIGI 250 Specifications A 1 BIGI 250 Specifications Inverter Technology High frequency PWM Size Inches 90 5 W x41 Dx 70H DC Voltage 250 750 VDC UL Certified to 600 VDC DC Maximum Power 390 750 VDC UL Certified to 600 VDC Voltage Max Current 640A PV MPPT 280 580 VDC PV Array Configuration With Isolation Transformer Negative grounded DC Voltage 250 750 VDC UL Certified to 600 VDC Voltage Charge discharge Charging Profile BMS Compatible Modbus over RS485 or TCP IP CANbus custom DC Voltage Ripple Grid Port Specifications AC Line Voltage 480 VAC 10 12 3 phase AC Line Frequency 60 50 Hz nominal 57 60 5 47 50 5 Hz range field adjustable Continuous AC Current 325 A RMS Continuous AC Power 250kVA Power Factor 0 to 1 adjustable leading and lagging Current Harmonics IEEE 1547 Compliant lt 5 THD Temperature Operating Storage Humidity Cooling Rated Max Elevation continued 4411 0008 Rev 0 5 47 BIGI 250 Specifications Safety Features Faults Over Under Voltage Over Under Frequency Over Current Over load Over Temperature IEEE 1547 CEC UL 1741 Pending Safety Features Anti islanding grid fault detection isolation amp auto reconnect UL compliant trip points field adjustable Front Panel Interface Communication Performance Monitoring Analo
12. Battery Systems For PV systems skip to PV Systems e O C Use control method of choice to set Power This commands the system to charge the battery Command to 0 Review battery charging settings in User Manual carefully Ensure that charging voltages charging current limits temperature settings and other settings are safe for the battery in use Start the inverter by pressing the Start Depending on the state of charge of the battery and the 4411 0008 Rev 0 5 43 Installation button on the front panel interface or in the battery charging settings the inverter will typically web UI start operating at this point confirmed by an audible sound If the battery is fully charged the inverter may simply enter the Idle charge state which will be evidenced by the system status on the LCD display changing to Checking No sound will be heard Confirm proper battery charging voltages and currents through the monitoring parameters Power Command to a positive number exporting power to the grid PV Systems For battery systems skip to Backup Systems C Once DC power is applied to the inverter it If there is sufficient power to operate the inverter will li will begin operating automatically export power to the grid If not the inverter will wait for sufficient power to be available Monitor DC voltage and current and verify proper power export based on present irradiance
13. being used may damage the battery and the inverter and may cause a hazardous condition that puts personnel at risk of grave injury or death The user must ensure that the battery temperature compensation parameters are appropriate and safe for the type and voltage rating of the battery used Grounding All input and output circuits are isolated from the enclosure System grounding when required by Sections 690 41 690 42 and 690 43 of NEC ANSI NFPA 70 is the responsibility of the installer 3 3 Opening Closing the Enclosure Doors Disconnect Position The AC disconnect has an interlock mechanism to prevent the door from being opened 1f it is not in their OFF position Turn the disconnect to OFF horizontal shown in Figure 3 1 DC Battery and AC Disconnect Switch Shown in the On Position position before opening closing the doors Turning the disconnect clockwise sets them to ON vertical position while turning the disconnects counter clockwise sets them to OFF horizontal position The disconnect for the battery port is equipped with an under voltage trip module When tripped the handle on the outside of the enclosure may still appear in its horizontal position but the steel bar Figure 3 4 DC Wiring Connections behind it turns clockwise which cannot be disengaged from the handle When this happened turn the disconnect counter clockwise to its OFF position before opening the door 4411 0008 Rev 0 5 Installation DC
14. e O e o e o e o o Open AC Disconnect C Open DC Disconnect C aed e installed applying AC power to the inverter seconds after applying power This is normal confirms proper control system power up Verify proper LCD display confirms proper control system power up Verify web user interface connectivity if used Verify Modbus communication connectivity if used Verify Analog input control signal Verify that analog input voltages read properly in the functionality 1f used corresponding AIx Signal Val parameters See Section 0 for details Verify AC grid voltage is within anti islanding parameters See User Manual by viewing the grid voltage monitoring parameters reda m if load installed ms eem installed Close Pre Charge DC Source Breaker Relay The sounds of DC Pre charge contactor operating may 1f Pre Charge Control circuit used Wait follow momentarily after applying DC power to the a minimum of 20 seconds prior to applying Pre Charge Control Input Main DC power to the inverter next step Close DC Disconnect and or circuit breaker The sounds of DC Pre charge contactor operating may applying DC power to the inverter follow momentarily after applying DC power if Pre Charge circuit not used in previous step Verify proper DC voltage by viewing the If voltage reads zero the DC polarity may be reversed DC voltage monitoring parameter See User Manual
15. input can also be driven from an external signal source In this case the signal wire is connected to the signal terminal and the return wire is connected to the return terminal Each system parameter that can be mapped to an analog input has two parameters associated with it These parameters are in the same units as their parent parameter the parameter to be mapped These define the range that the mapped parameter will traverse when it is mapped to an analog input Each analog input channel has two parameters associated with it as well that define the part of the range of the input signal that will correspond to the mapped parameter s range If an input signal goes above or below this range the parameter will be set to it s high or low value respectively 3 11 4Analog Outputs The system has 1 analog output that can be used to send analog signals from the inverter The analog output can be configured either as a 0 10V voltage output or a 0 20mA current output The analog output can be mapped to a number of parameters in the system and the range and scaling configuration for that mapping is configurable for each output individually The analog output signal is connected to J36 on the GTI interface I O board as shown The selection of 0 10V input or 0 20mA output is done using the analog output selection switch also on the BIGI interface I O board The switch in the A position configures the output as a 0 20mA channel Th
16. is forced air cooled Air is drawn in through vents at the lower part of the front door and the bottom exhaust air is emitted vertically from vents at the rear of the roof as shown If the inverter has been installed without the roof the air will be exhausted out of the top of the unit The air inlet and outlet must not be blocked and the installation location should be sufficiently ventilated to prevent the inverter heat output from increasing the ambient temperature beyond the inverter s rating Under certain operating conditions the inverter will emit audible noise it 1s not advisable to install in the immediate vicinity of living quarters The inverter should not be installed in an area that is excessively dusty as this may decrease the performance of the air cooling system The inverter must not be installed in areas in which dust containing conductive particles e g iron filings may form 2 4 Mounting amp Ventilation 4411 0008 Rev 0 5 The inverter weighs about 3 500 Ibs Be sure to verify load capacity of floor roof or concrete pad mounting area recommended Provisions should be made and or procedures should be in place to ensure that nothing is placed or stored on the enclosure roof where it could block the exhaust vents Similar precautions should be taken regarding the air inlet vents on the front of the unit A minimum distance of 12 inches 300mm must be clear above the inverter for ventilation A minim
17. poema pads ded Neto CU veste 19 Imee Oee ale aim 20 Ours Lorgue SEC MIC ALIOMS rail 20 4411 0008 Rev 0 5 IX Contents 3 7 2 Battery and PV Port Connection 3 8 AC Utility and Load Connections centi P Lorque Specincanons ail 30 2 ANG ANS ALAC OM lella 3 9 Isolation Transformer Connections i 3 0 T Torgue Spec a NE 3 9 2 Isolation Transformer ConnectionsS dd Mare ROULDUP alli ii iui 3 11 Input and Output Wire Connection Li Sb BIER c Salt Z ID 1Gital S tI NT d Amore alia S NN oa Commissioning Sequence AMMESSI tisane aid 4 1 2 Inverter Status Screen Home er 42 MODBUS TNEI E 422 SUP 4 2 3 RS 232 Hardware Configuration eee atate bia Als orci dio eMe PEE TO 4 4 Password Protection ica ide M Ra deis tede ante 4 5 1 Single Grid Connected BIGI 250 Specifications Ail BIGI 250 Specifications
18. space that prevents proper ventilation or allows the build up of excessive heat A minimum of 12 inches of spacing clearance must exist for proper cooling airflow into and out of ventilation openings ESD Sensitive Components The inverter contains Electrostatic Discharge ESD sensitive components Standard ESD control precautions must be followed when installing commissioning testing servicing or repairing the system Component damage component degradation or an interruption in control system operation may occur upon an electrostatic discharge event Battery Information viii Battery Parameters Setting The battery charge control function has adjustable battery charging settings The user must confirm that the charge control profile used in this inverter is appropriate and safe for the type of battery used and that all battery charging settings are set correctly for the battery voltage current and temperature ratings Setting these settings incorrectly may damage the battery and the inverter and may cause a hazardous condition that puts personnel at risk of grave injury or death 4411 0008 Rev 0 5 Contents Contents About Bint S IVAW al o ec oe Oro e ODD ER iv Pipolo iv Scope iv Audience alicell iv Ore ani zaon aeos e vede eis Kaan ead V Abbreviations dnd Debitis ao ule DRE Re dern hoi Pup e ero a ada V IMPOR ANE HTODS sme nod d Dotnet etta ade to uote VI
19. 11 0008 Rev 0 5 System Overview System Overview 1 1 BIGI 250 Overview The Battery Interactive Grid Interactive BIGI Inverter is a multi port power converter that allows for the seamless combination of renewable power generation with energy storage The system 1s designed for utility interactive functionality The PPS Battery Integrated Grid Interactive 250kW Inverter BIGI 250 is a unique and innovative three port power inverter that is poised to become an integral part of the smart grid supporting distributed power generation and demand response applications The BIGI 250 allows energy from multiple energy sources to be harvested stored and distributed Some of the changes and opportunities in the electricity market that are evolving now and precipitating the transition to advanced systems requiring the Grid Interactive Inverter technology include Solar Backup Power With the Grid Interactive Inverter it is possible to integrate PV arrays with battery storage allowing the inverter to continue operating when the sun goes down saving fuel money and increasing positive perception of solar systems Energy Storage Integration Integrating the Grid Integrated Inverter with the solar array and energy storage provides a broad range of possibilities When multiple loads storage and generation sources are managed effectively through a Grid Interactive Inverter the value reliability and security of the energy system are max
20. 3 8 Read Registers 03 0x03 amp 04 0x04 These function codes are used to read the contents of one or more sequential registers Because the holding and input registers share the same memory space they can be used interchangeably The request specifies the starting register address and the number of registers The response contains the sequential data read from the registers Request 0x03 or 0x04 Starting Address 0x0000 to OxFFFF Number of Registers to Read N 1 to 125 0x0001 to 0x007D Response Register Values N x 2 bytes Error 0x83 or 0x84 Exception Code 01 02 03 or 04 4 2 3 9 Write Single Register 06 0x06 This function code is used to write a single register The request specifies the target register address The normal response is an echo of the request after the register contents have been written Request Function Code Register Address 0x0000 to OxXFFFF Register Data 0x0000 to OxFFFF Response Function Code Register Address 0x0000 to OxFFFF Register Data 0x0000 to OxFFFF Error Exception Code 01 02 03 or 04 4 2 3 10 Write Multiple Registers 16 0x10 This function code is used to write to one or more sequential registers up to 120 registers The response contains the function code starting address and number of registers written 38 4411 0008 Rev 0 5 Installation Request 0x10 0x0000 to OxFFFF 1 to 120 0x0001 to 0x00078 2x N data Response 0x10
21. Battery Disconnect Switch AC Grid Disconnect Switch Figure 3 1 DC Battery and AC Disconnect Switch Shown in the On Position The enclosure doors are to be unlocked only by a qualified electrician or technician who is performing the installation or period maintenance Each door latch is designed so the door can be locked in the closed position shown in Figure 3 2 Figure 3 2 Locked Door Rotating a handle in the wrong direction can break the handle so before trying to open a door make sure you are rotating the direction the handles toward that door s hinges 4411 0008 Rev 0 5 13 Installation Chassis GND Chassis DC Battery AC Grid Port Port Figure 3 3 Power Electronics Hook ups BIGI 250 14 4411 0008 Rev 0 5 Installation 3 4 Wire Sizing and Ratings 3 4 1 AC Grid Wire Sizing and Ratings All AC power wiring should meet the following specifications Voltage Rating 600 Volts or greater per NEC Temperature Class 75 C or greater per NEC Table 1 AC Wire Specifications 3 4 2 DC PV and Battery Wire Sizing and Ratings DC power wiring including PV and battery should meet the following specifications Voltage Rating 600 Volts or greater as per NEC Temperature Class 75 C or greater per NEC Table 2 DC PV and Battery Wire Specifications 4411 0008 Rev 0 5 15 Installation 3 4 3 Control Wire Sizing and Ratings Circuit Class Class 1 wiring methods must be use
22. CT PRINCETON JY Y POWER SYSTEMS Clean power made simple BIGI 250 Installation Manual WWW princetonpower com 4411 0008 Rev 0 5 June 25 2013 This page intentionally left blank About this Manual Copyright Copyright 2013 Princeton Power Systems Inc 3175 Princeton Pike Lawrenceville NJ 08648 Tel 609 955 5390 Fax 609 751 9225 Email info Q princetonpower com Princeton Power Systems Inc and Clean Power made simple are registered trademarks of Princeton Power Systems Inc Specifications and descriptions in this document were in effect at the time of publication Princeton Power Systems Inc reserves the right to change specifications product appearance or to discontinue products at any time No patent infringement liability is assumed by Princeton Power Systems Inc with regards to the use of information circuits equipment or software described in this manual The statements and information in this document must not be changed without special notification from Princeton Power Systems Inc Furthermore Princeton Power Systems Inc does not commit to any further obligations with this document Use and reproduction is only permitted in accordance with the contractual agreements with Princeton Power Systems Inc Under no circumstances may parts of this publication be copied reproduced stored in a retrieval system or translated into another language except with written permission from Princeton
23. DC Return 24VDC 23 Installation Figure 3 8 Digital input configuration Terminals on I O Board header J27 24V DC is supplied on the user I O terminal strip for use in setting up digital input signals This power supply can be used to convert a relay contact closure input to a 0 24VDC signal allowing the user to provide input signals to the inverter using relays or other contact closure systems The figure at left illustrates how to connect a digital input relay switch using the on board 24V power supply Since the users supply is isolated a connection must be made between the corresponding digital input return and the power supply return as shown in Figure 3 8 This figure shows a configuration with user supplied 24VDC sources A cable shield drain is also shown 3 11 2Digital Outputs The inverter is equipped with 2 digital outputs for sending high low signals from the inverter all of which can be mapped to a number of digital parameters within the system Each digital output has a parameter associated with it that contains the ID number for the parameter to which it is mapped The digital outputs consist of a set of 2 relays that are controlled by the high low status of the digital output signals As with the digital inputs the polarity of each digital output relative to its mapped parameter can be configured individually Each relay also has a Normally Open NO and a Normally Closed NC
24. Demand Response merer 4411 0008 Rev 0 5 About this Manual Important Safety Instructions SAVE THESE INSTRUCTIONS This manual contains important instructions for the BIGI 250 that shall be followed during installation and maintenance of the inverter Symbols The following is a list of symbols used in this manual and on labels in the BIGI 250 o DC circuit AC circuit Phase indicator Protective earth ground Other grounding conductor IROLE Warning Symbols Used in This Manual Attention This symbol identifies information about circumstances or practices that could lead to personal injury death internal component damage reduced product life equipment damage economic loss or other adverse effects procedure that could be potentially lethal or harmful to personnel or damaging to components due to live voltages within the system components holding stored energy or electrostatic discharge ESD Electric Shock Hazard This symbol identifies information about a condition or vi 4411 0008 Rev 0 5 About this Manual Terms of Use Because of the wide variety of uses for power electronics equipment this manual does not describe every possible application or configuration All technicians responsible for installing commissioning and operating this equipment must satisfy themselves of the suitability and proper implementation of the intended application of this power conversion product In no event will
25. PPS its subsidiaries partners employees or affiliates be responsible or liable for any damages indirect or direct resulting from the misuse or incorrect application of this equipment The examples and diagrams in this manual are for illustrative purposes only Because of the wide variety of uses applications peripheral equipment and facility configurations particular to each installation PPS cannot assume responsibility or liability for actual use based on the information provided herein General Precautions A A A For Proper Circuit Isolation Connect a minimum 250kVA rated isolating transformer between the output of the inverter and the utility power line connections The transformer is to be an isolation type having separate primary and secondary windings Maintenance by Qualified Personnel Only personnel familiar with the PPS BIGI 250 Inverter and associated machinery should attempt installation commissioning or maintenance of the system Untrained or unauthorized personnel run the risk of grave personal injury death or equipment damage High Voltage Electric Shock Hazard The PPS BIGI 250 Inverter contains electrical components carrying potentially lethal voltages and currents Extreme caution should be exercised around the system especially when the cabinet door is open Before opening the cabinet all supply power should be disconnected using a standard physical lock out procedure and the service personnel sh
26. Power Systems Inc 4411 0008 Rev 0 5 lil About this Manual About This Manual Purpose The purpose of this Installation Manual is to provide explanations and procedures for installing and troubleshooting the BIGI 250 Scope The manual provides safety guidelines detailed planning and setup information procedures for installing the inverter as well as information about troubleshooting the unit It does not provide details about particular brands of batteries You need to consult individual battery manufacturers for this information Audience The manual is intended for anyone who needs to install the BIGI 250 Installers should be certified technicians or electricians IV 4411 0008 Rev 0 5 About this Manual Organization This manual is organized into three chapters and three appendices Chapter 1 System Overview provides general information of the BIGI 250 Chapter 2 Installation describes how to mount and install the BIGI 250 Chapter 3 Wiring Instructions describes system configurations and how to perform wiring and cabling procedures Appendix A BIGI 250 Specifications provides the electrical and environmental specifications of the BIGI 250 Appendix B BIGI 250 Grounding provides grounding method for various configurations Appendix C BIGI 250 Default Trip Settings Abbreviations and Definitions The following table provides a glossary of terms used in this manual ORL
27. User Access Writeable parameters are grouped into three levels of access 1 Open Access Operational parameters modifiable by all users 2 User Access Parameters configurable by the facility manager 3 Factory Access Parameters for system commissioning and testing accessible by Princeton Power s installation and field service technicians To view the password options choose Password from the Main Menu To unlock access to user or factory level parameters choose Log In and enter in the appropriate password Once user or factory level access has been granted the user can modify the password for that level of access by selecting Modify Passwords To revert back to Open Access select Log Out 4 2 MODBUS Interface 4 2 1 Introduction The Modbus RTU protocol is an industrial communications and distributed control system to integrate PLCs computers terminals and other monitoring sensing and control devices Modbus is a Master Slave communications protocol The Master controls all serial activity by selectively polling one or more slave devices The protocol provides for one master device and up to 247 slave devices on a common line Each device is assigned an address to distinguish it from all other connected devices More information on the protocol standard can be found here http www Modbus org docs Modbus Application Protocol V1 la pdf http www Modbus org docs Modbus over serial line Vl pdf The inverter allows th
28. at parameter 3 The parameter is read only 4 The Front Panel Interface does not have ownership of the parameter If you are not allowed to edit a parameter when you attempt to change it a message will display briefly explaining the reason and no changes will be made Editing Binary Parameters A small number of system parameters are binary parameters meaning that they are displayed as a string of 16 digits each of which is a zero or a one These parameters are edited one digit at a time Select the parameter using the navigation knob and press Enter The first digit of the parameter that 1s changeable will begin blinking Use the navigation knob to scroll the value of that digit to one up or zero down Then press Enter again to move to the next digit Once you have reached the last digit pressing Enter will save the new parameter value and the message Parameter Downloaded will appear briefly if the new value is saved successfully Pressing Esc at any point before this will abort the changes made to all digits and the parameter will remain unchanged 4 1 3 2 Setup Wizard The Setup wizard provides the user with a quick way to configure the most commonly used inverter parameters Most applications will not require further setup after the Setup Wizard is completed The Setup Wizard can be accessed from both the Front Panel and the Web Interface The instructions below apply to the Front Panel though the procedu
29. board as shown The selection of 0 10V input or 0 20mA input is done using the set of 3 analog input selection switches also on the BIGI interface I O board as shown by the yellow arrows A switch in the A position configures the input as a 0 20mA channel A switch in the V position configures the input as a 0 10V channel wih 10003341 i Cs s gt Es 1111111 ELLEP sATA Im gt gt 2 TO HELL 093549 ee ee ne ie 2 YY yy yy ye 0148 G w te 8 5 6 6 6 eeeeoevvveseO n OG a 22 ON z 7 Return 5 Return 4 Signal gt 1 3 Return 2 Signal Figure 3 10 Analog I O Board mounted in the left side of the enclosure 4411 0008 Rev 0 5 25 Installation Caution Configuring an analog input for 0 20mA operation and driving it instead with a voltage source could cause component damage on the I O board The use of shielded twisted pair wiring is recommended for all analog control signals Shields should be connected to the FRAME terminal terminal 1 on J36 The analog inputs can be driven from a potentiometer such as a front panel rotary knob powered by the I O board itself A 10V voltage supply is available on terminal 8 of J36 its return is on terminal 9 for facilitating such a circuit The analog
30. ch pair consisting of a and wire One pair comes from the preceding node and one pair goes to the next node in the bus The following signal connections are required Half Duplex RS 485 Signal Name Figure 4 5 RS 485 Half Duplex Signal Pins If there are multiple slave devices on the Modbus communication bus and the inverter is not physically located at either end of the bus then set the switches as follows Switch Position Comments Shorts terminals i g3 AAA 2 Up ON Shortsterminals2 amp 4 H HA EEE Header J66 Down OFF No termination resistor 4 Down OFF No termination capacitor 2 Down OFF fo Down OFF fo Down OFF fo Figure 4 6 RS 485 Half Duplex Dip Switch Settings w multiple slaves 4411 0008 Rev 0 5 35 Installation 4 2 3 5 Full Duplex RS 485 Hardware Configuration Full duplex RS 485 uses two differential signals transmit and receive This corresponds to four wires TX TX RX RX Header J66 To next node _ Figure 4 7 RS 485 Full Duplex Wire Assignments The following signal connections are required Full Duplex RS 485 Signal Name Figure 4 8 RS 485 Pin Assignments If the inverter is the only slave device on the Modbus communication bus or if it is physically located at either end of the bus the communication signals must be terminated by setting the switches as follows l M aL OACE
31. d for wiring of class 2 circuits Control or sensor circuit Wire Insulation All wiring installed in the system must be rated for 600V AC including control and signal wiring Here are the requirements for the control wires Voltage Rating 600 Volts Temperature Class 75 C or greater Gauge Copper Stranded 22 18AWG or greater per NEC Table 3 Control Wire Specifications 3 5 Hookup Requirements 3 5 1 Disconnects 3 5 1 1 DC Disconnects The BIGI 250 includes an internal Battery DC Disconnect for user s safety and convenience A dedicated DC disconnect must be installed for the PV port The disconnect needs to have the following characteristics 1 The DC disconnect must open all ungrounded conductors of the circuit to which it is connected 2 Consist of a manually operated switch or a circuit breaker 3 Employ an operating handle that is accessible or located behind a hinged cover not requiring a tool for opening 4 Be marked or otherwise clearly identified as the DC disconnect switch for the inverter and 5 Be rated for 600VDC and the lesser of a The maximum current of the connected DC source or b 640ADC the maximum DC ratings of the inverter 3 5 1 2 AC Disconnects The BIGI 250 includes an internal AC Disconnect for user s safety and convenience 16 4411 0008 Rev 0 5 Installation 3 6 Grounding System grounding and equipment grounding when required by the National Electrical Code ANSI NFPA 70 i
32. e switch in the V position configures the output as a 0 10V channel 26 4411 0008 Rev 0 5 Installation M A O 0 11 Return 10 Signal i Addi x go I 5 5 unm S s e TITIO GIGA ni Eo 3 N ENT SI CRA UN S 111111191277 A 2 E 1111111111 ore 9935760885000 DI eee cous 59946 2202660929060 eveecevveeseO 3 we m uf Figure 3 11 Analog Output Header J36 on I O Board Caution Configuring an analog output to source 0 10V and connecting it to an external current sensor could cause component damage to the external sensor Each system parameter that can be mapped to an analog output has two parameters associated with it These parameters are in the same units as their parent parameter the parameter to be mapped These define the range of the mapped parameter that will be mapped to the analog output The analog output channel has two parameters associated with it as well that define the part of the range of the output signal that will correspond to the mapped parameter s range If a mapped parameter goes above or below the range then the analog output will be set to its high or low value respectively 4411 0008 Rev 0 5 2 Installation 28 This page intentionally left blank 4411 0008 Rev 0 5 4411 0008 Rev 0 5 Commissioning Sequence Installation Installation 4 1Basic Operation PRINCETON 4 1 1Nav
33. e user to view and configure all system parameters using the Modbus interface over a serial hardware interface The system supports three different hardware protocols RS 232 the standard 32 4411 0008 Rev 0 5 Installation RS 485 half duplex multidrop and the modified RS 485 full duplex multidrop protocol The user must configure the communication parameters to match those of the Modbus master controller The user must also properly configure the hardware connection on the I O board All Modbus registers are 16 bit signed integers however most of the parameters are floating point numbers To obtain the actual floating point value of a parameter it s Modbus register value needs to be multiplied by the scale coefficient for that parameter The scale coefficients of all parameters are provided in the Section 7 29 Parameter List in the column Scale For example if a user reads a value of 5051 for Parameter 801 Inverter AC Voltage using Modbus the actual value is 5051 x 0 1 505 1V 4 2 2 Setup 4 2 2 1 Parameter Configuration Both RS 232 and RS 485 full duplex or half duplex standards are supported In RS 232 and RS 485 full duplex the transmitter is on continuously In RS 485 half duplex the transmitter is only powered when the device being polled is transmitting After setting the RS 232 485 Select to choose the protocol being used the protocols require that you specify four parameters the Baud Rate of the transmissio
34. ed l 2 ssp opm doc Wire stripper Assorted open end wrenches or socket wrench set and fittings Torque wrench Electrical tape Multi meter AC DC Voltage frequency Assorted Phillips screw drivers Allen Hex head driver set through 1 2 Slotted screw driver Level 10 Pencil 11 Utility knife 12 Wire lugs The following materials may be required for completing this installation l SE i web gt 3 2 Safety Conduits code compliant conduit is recommended bushings wire nuts appropriate fittings for wire run and seals as necessary Electrical wire of appropriate size and length Breaker panels if used Additional circuit breakers if required Ground busses bars and or rods Shock Hazard Ensure that no DC voltage 1s being supplied to the inverter and that no AC voltage is present on the AC wiring Failure to do so could cause serious injury or death A warning label is provided to inform all personnel that multiple sources of power are available inside This label is installed on the outside of the door and should remain clearly visible Ensure all sources are OFF or disconnected before servicing The PPS BIGI 250 Inverter contains electrical components carrying potentially lethal voltages and currents Extreme caution should be exercised around the system especially when the cabinet door is open once it s installed Before opening the cabinet all supply power should be disconnected using a s
35. ess 1 Open Access Operational parameters modifiable by all users 2 User Access Parameters configurable by the facility manager configuration 3 Factory Access Parameters used for system commissioning and testing accessible by authorized installation and field service technicians The default user level password is 000 Note that this is different than the Web Interface password For security reasons the customer should consider changing the User Set Password from the default value after logging in for the first time Until the user changes the user level password to something other than 000 all user level access parameters will be accessible by all users Write down this new password and store it in a safe place Lost passwords will require reinitializing the inverter system which can be done only by a qualified service technician In general once user level access has been granted the user can change the user level password 4 5 Commissioning Sequence Important See Grid control settings Section in the User Manual for instructions relating to adjusting UL 1741 anti islanding parameters 4 5 1 Single Grid Connected Systems 4 5 1 1 Wiring checklist Load circuit equipment ground C Transformer wiring 4 wire grid side 3 wire inverter side Modbus Communication wiring 42 4411 0008 Rev 0 5 Installation 4 5 1 2 Commissioning Checklist V hm Te All Systems C3 o e o e
36. g amp Digital I O Analog 3 inputs 1 output 0 10V or 4 20mA Digital 2 inputs 0 24V 2 output relays Efficiency 96 5 95 0 175W Automatic internal subsystems power down Nighttime transformer auto disconnect Table 6 BIGI 250 Specifications Peak Efficiency CEC Efficiency Nighttime TARE Losses Energy saving Features 48 4411 0008 Rev 0 5 BIGI 250 Specifications This page intentionally left blank 4411 0008 Rev 0 5 49 BIGI 250 Grounding BAT Battery oe BAT uu BATgnd SERRA PV po o PV PV Combiner Slt Box GFDI PVgnd U1 rea aN U2 qt T Es ii i a a Ugnd a EE NEEE BIGI 250 Grounding Main AC i Distribution Panel 4411 0008 Rev 0 5 Figure B 1 BIGI 250 Gnd Neg Grid Interaction I a Ee a a ee ee ee ee a E 51 BIGI 250 Grounding 52 This page intentionally left blank 4411 0008 Rev 0 5 BIGI 250 Default Grid Trip Settings BIGI 250 Default Grid Trip Settings Default Trip Setting Description Parameter j Bx Notes Setting Under frequency trip Not user settable fast threshold LAB ES dU lene bis we Over frequency trip fast Not user settable PAM AI Maximum Frequency 60 5 Hz Over under frequency trip AI Outer Frequency Window Not user settable 0 16 sec fast time Time
37. gh the configuration of Ground Fault Detector and Interrupter GFDI Only negative conductor of the DC circuit can be grounded There is no need to make any additional ground connection for the DC circuit 4411 0008 Rev 0 5 19 Installation except to ground the frame or rack of the DC source s Grounding conductors from the frame or rack of the DC source s can be connected to the protective earth ground lug shown in Figure 3 6 an integrated GFDI then it must be used with an external GFDI device as required by the Ground Fault Detector and Interrupter GFDI If the BIGI 250 is not equipped with Article 690 of the National Electrical Code for the installation location 3 DC Connection 3 1 Torque Specifications AN All DC terminal block compression screws must be tightened with a torque of 230 in lbs 3 7 2 Battery and PV Port Connection Connection can be made at the terminals as shown in Figure 3 4 Battery PV Chassis Gnd Figure 3 4 DC Wiring Connections 20 4411 0008 Rev 0 5 Installation 3 8 AC Utility and Load Connections AC Grid Neutral The BIGI 250 does not have a neutral on the AC grid port without an AN isolation transformer If a neutral point is required it must be found on an external optional grid isolation transformer Connect a minimum 250KVA isolating transformer between the output of the inverter and the utility power line connections The transformer is to be an isolati
38. igation mt O9 POWER SYSTEMS The front panel interface shown here is used to view and change all system parameters This interface can be used to configure the inverter and to control the inverter while it is running The LCD screen displays either a list of menu options or a list of parameters at all times Menu options or parameters are selected by scrolling to the desired item using the navigation knob and then pressing the Enter button Pressing the Esc button will x 9 n bring you back to the previous menu page or cancel the Fault parameter change Start sc a A i The parameters are organized into groups in a way that mirrors their organization in System Operation and Parameters Section zx a of the user manual For example if a particular parameter is WAS LAM S o described in Sub section 18 of that section then that parameter will be found under menu selection 18 under the View Change Params option on the front panel interface 4 1 2 Inverter Status Screen Home Screen When the inverter is first powered on the LCD screen will display the Home Screen This screen displays the present inverter status at the top and the following three parameters Battery Power PV Power Inverter AC Power Real The display will always return to this home screen after 5 minutes of inactivity on the Front Panel Interface The Home Screen can be accessed at any time by pressing Esc from the Main Menu 4 1 3 Main Menu
39. imized All available resources are being utilized to their maximum efficiency and effectiveness based on the price signals and environmental signals available Regulatory Services Area frequency regulation VAR support and other services are increasingly being monetized by grid regulators such as Pennsylvania New Jersey and Maryland PJM Interconnection Solar resources can provide their full value as a capacity resource when combined with load control or energy storage through the BIGI Contact Princeton Power Systems for more information regarding current available regulatory service capabilities 1 2 Grid Tied Systems The system is designed to provide grid support functionality for grid connected systems including on command real power delivery for frequency regulation and demand response as well as on command reactive power delivery for voltage regulation The BIGI is compatible with advanced communications protocols including the IEC 61850 communication protocol that includes a number of important grid support capabilities 2 4411 0008 Rev 0 5 System Overview Figure 1 1 Configuration of BIGI 250 The GFDI on the PV and battery ports are configured to ground the PV negatively The PV is negatively grounded in the above configuration 4411 0008 Rev 0 5 3 Installation Installation 2 1 Unpacking Inspection and Storage Upon receiving the unit inspect for signs of damage that may have been caused during sh
40. ipping If damage is found immediately contact PPS and the Shipping Company The inverter weighs approximately 3 500 lbs Use a forklift to move the units Do NOT attempt to lift and or move either the inverter or transformer by hand They are extremely heavy Attempting to move the unit by hand may lead to serious injury 2 2 Dimensions dI 1033 mm 38 B 973 mm eo 1753 33 Himm Figure 2 1 Side View of BIGI 250 4411 0008 Rev 0 5 5 Installation Figure 2 2 Front View of BIGI 250 2 3 Location Considerations se Airflow Exhnusi I op A Airflow a z Exlhuust Arion Alrflon i Inlet Inket Airflow Airflow Arlon le flon Inlet Inket Inbe t 388 Inlet dt o Figure 2 3 Airflow with and without Roof 4411 0008 Rev 0 5 Installation To make the most of the benefits provided by the inverter please comply with the following requirements l 2 Unit is NEMA 3R rated configured to be installed INDOORS Install the inverter in an accessible location following NEC for enclosure and door clearances and proximity to other equipment The maximum life of the inverter can be achieved by mounting the unit in a clean dry and cool location For optimal inverter life and performance do not mount the inverter in direct sunlight especially in hot climates If the unit must be mounted in direct sunlight a metal sun shield is recommended but not required The inverter
41. n the number of Data Bits encoding a character the sense of the optional Parity and the number of Stop Bits Each transmitted character is packaged in a character frame that consists of a single start bit followed by the data bits the optional parity bit and the stop bit or bits 4 2 3 RS 232 Hardware Configuration For RS 232 connect the following signals to J66 of the I O interface board RS 232 Signal Name TXD Transmit Figure 4 1 RS 232 Signal Pins 4411 0008 Rev 0 5 33 Installation For RS 232 configure the piano switches located on the I O board as follows Switch Position Comments Po GOOLGE Down OFF eee Down OFF O Down OFF Down OFF O Figure 4 2 RS 232 Dip Switch Settings 4 2 3 1 Half Duplex RS 485 Hardware Configuration RS 485 is a multidrop protocol which means more than two systems can be connected Devices are connected in a daisy chain or bus which means that devices in the middle of the chain will have a pair of wires coming from the previous node and a pair of wires going to the next node The devices at either end of the bus will have only one incoming pair and need to have signal termination installed Header J66 Termination If the inverter is the only slave device on the Modbus Or communication bus or if it is physically located at either canta eee O2 end of the bus the communication signals mustbe 7 Sh
42. o a slave device the function code field tells the slave what kind of action to perform When the slave responds to the master it uses the function code field to indicate either a normal error free response or that some kind of error occurred called an exception response For a normal response the slave simply echoes the original function code For an exception response the slave returns a code that is equivalent to the original function code with its most significant bit set to a logic 1 The data field is constructed using sets of two hexadecimal digits one RTU character in the range of 00 to FF hexadecimal The data field of messages sent from a master to slave devices contains additional information which the slave must use to take the action defined by the function code This can include items like discrete and register addresses the quantity of items to be handled and the count of actual data bytes in the field In the inverter Modbus Register addresses which start at 0 match Parameter IDs which start at 1 so Register 0 corresponds to a Parameter ID of 1 If no error occurs the data field of a response from a slave to a master contains the data requested If an error occurs the field contains an exception code that the master application can use to determine the next action to be taken The message also contains a 16 bit checksum at the end of the packet for error checking 4411 0008 Rev 0 5 37 Installation 4 2
43. on type having a separate primary and secondary winding It shall be configured as a Delta Y with neutral 3 8 1 Torque Specifications must be tightened with a torque of 230 in Ibs All AC terminal blocks in the BIGI 250 are the same size and the compression screws 3 8 2 AC Installation Phase Rotation AC Ports wiring must be installed with a positive phase rotation 123 or ABC All AC power terminals are labeled by phase number follow these labels when installing AC power wiring Connection can be made at the bottom side of the disconnects as shown Figure 3 5 Figure 3 5 AC Wiring Connections BIGI 250 4411 0008 Rev 0 5 21 Installation 3 9 Isolation Transformer Connections 3 9 1 Torque Specifications AN All transformer terminal set screws should be tightened to 230 in lbs 3 9 2 Isolation Transformer Connections The external Isolation Transformer should be hooked up to the BIGI 250 as per the diagram in Figure 3 5 Left Terminal Right i XFMR Out Delta A INVIn XFMR Out Delta B INVIn XFMROut DeltaC XFMRIn YA Gridin XFMRIn YB Gridin XFMRIn YC Gridin Neutral Chassis GND Figure 3 6 Isolation Transformer Wiring BIGI 250 3 10 Wire Routing There are access plates in the bottom of the enclosure for cable and wire entrance shown Figure 3 7 Drill proper size of holes in the access plates of the cable wire entrances and use grommets to co
44. ould wait 5 minutes prior to opening the enclosure door Installation to Code The following instructions are merely a guide for proper installation The National Electrical Codes NEC local codes and similar standards outline detailed requirements for safe installation of electrical equipment Installation must comply with specifications for wire types conductor sizes electrical and thermal insulation branch circuit protection grounding and disconnect devices PPS cannot assume responsibility for compliance or noncompliance to any national or local code PPS cannot assume responsibility for personal injury and or equipment damage exists if codes are ignored or misapplied during installation 4411 0008 Rev 0 5 vil About this Manual Improper Use PPS cannot assume responsibility for personal injury and or equipment damage as a result of improper installation use maintenance reconfiguration reprogramming or other improper actions An incorrectly serviced or operated Inverter system can cause personal injury component damage or reduced product life Malfunction may result from wiring errors an incorrect or inadequate DC supply or AC grid connection excessive ambient temperatures or obstructed ventilation or incorrect software configuration Heat Hazard The cabinet should not be mounted on a combustible surface nor should combustible materials be placed on or against the cabinet The system should not be installed in a confined
45. re for the Web Interface is identical in most cases Operational Note The inverter will not run until the Setup Wizard has been completed unless it 15 preconfigured at the factory 4 1 3 3 Navigating the Wizard Selecting Setup Wizard from the MAIN MENU will take you to the first page of the Setup Wizard At the bottom of each screen is a list of options Read and follow the instructions on each screen scrolling up and down using the navigation knob and choose one of the options at the bottom by pressing the 4411 0008 Rev 0 5 31 Installation Enter key Pressing the Esc key at any time will bring you back to the MAIN MENU Changes up to that point will be retained so you will not have to redo them if you re start the Setup Wizard Scrolling the cursor past the last displayed line on the screen will scroll the contents of the screen 4 1 3 4 Runtime Data Page Selecting Runtime Data View from the main menu will take you to the Runtime Data Page which displays a user configurable list of system parameters at all times 4 1 3 5 Memory Management Selecting Memory Management from the Main Menu will allow you either to save the current parameter settings or reset the parameters to their default settings This feature is also available through the Web Interface with the additional ability to save and name individual parameter profiles Parameter settings will be automatically saved when the VSD starts running 4 1 3 6 Password and
46. s the responsibility of the installer PPS takes no responsibility for damage or injuries resulting from non NEC compliant grounding arrangements A Grounding Requirements All input and output circuits are isolated from the enclosure 4411 0008 Rev 0 5 17 Installation 3 6 1 Torque Specifications AN All grounding terminal set screws should be tightened to 230 in lbs 3 6 2 Ground Wire Sizing 3 6 2 1 AC Circuits and Non PV DC Circuits For all AC circuits or a non PV DC circuit system ground wire and equipment ground wire shall be sized according to Table 4 Conductor Size of AC System Grounding Table 4 and TableTable Error Use the Home tab to apply 0 to the text that you want to appear here 5 based on the size of the over current device protecting that circuit Size of Largest Ungrounded Service Entrance Conductor or Equivalent Area for Parallel Size of Grounding Electrode Conductor Conductors AWG kemil AW G kemil Aluminum Aluminum or or Copper Clad Copper Clad Copper Aluminum Copper Aluminum 2 or smaller 1 0 or smaller amp 6 l or 1 0 2 0 or 3 0 6 4 2 0 or 3 0 4 0 or 250 4 2 Over 3 0 Over 250 2 1 0 through 350 through 500 Over 350 Over 500 1 0 34 0 through 600 through 900 Over 600 Over 900 2 0 4 0 through 1100 through 1750 Over 1100 Over 1750 3 0 250 Table 4 Conductor Size of AC System Grounding 18 4411 0008 Rev 0 5 Installation Rating or Setting of Automatic Overcurrent Size AWG or kcmil
47. tandard physical lock out procedure and the service personnel should wait 15 minutes prior to opening the enclosure door 4411 0008 Rev 0 5 11 Installation A A A A PV Voltage Before connecting the solar panels check that the voltage specified by the manufacturer corresponds to the actual measured voltage At an outside temperature of 10 C the open circuit voltage for the solar panels should never rise above 600 V When the temperature is lower the open circuit voltage generated will be higher than normal The temperature coefficients for calculating the open circuit voltage at 10 C can be found in the data sheet for the solar panels If the open circuit voltage for the solar panels rises above 600 V this may result in damage to the inverter and all warranty rights shall be declared null and void Battery Parameters The battery charge control function has adjustable battery charging settings The user must confirm that the charge control profile used in this inverter is appropriate and safe for the type of battery used and that all battery charging settings are set correctly for the battery voltage current and temperature ratings Setting these settings incorrectly may damage the battery and the inverter and may cause a hazardous condition that puts personnel at risk of grave injury or death Battery Temperature Compensation Programming temperature compensation parameters that are not suitable for the type of battery
48. to not have two inverters on the network with the same Host Name Doing so will prevent Web Interface access on all inverters with identical Host Names Make sure to change the Host Name via the Inverter Configuration WebUI menu on the inverter before plugging additional units into the network 40 4411 0008 Rev 0 5 Installation a pw 1 A y LRT Control Board En i Ethernet Jack ga 4 rT Interface I O Board Figure 4 11 Control Board and Interface I O Board Location 4 3 1 1 Features The Web Interface has the following features e Step by step Setup Wizard for initial installation of the inverter configuration of the analog amp digital inputs outputs and setup amp auto tuning of motor parameters e Configuration and viewing of all system parameters via the Inverter Configuration menu Run stop control and continuous real time viewing of system status parameters via the Inverter Status menu e Continuous real time graphical plotting of system status parameters via the Data Plot menu e Back up Saving and reloading of parameter profiles via the Save Load Profile menu e Access to support and troubleshooting resources via the Support menu 4411 0008 Rev 0 5 41 Installation 4 4 Password Protection Some of the system parameters are password protected and cannot be edited unless a password with sufficient access 15 entered There are three levels of acc
49. um distance of 36 inches 900mm must be clear in front of the inverter to allow for opening of the main door The inverter must be mounted with at least a 4 open space behind it if the inverter has the roof installed Installation 7 Correct mounting position for the inverter is vertical with the mounting feet on the floor The enclosure must be bolted to a concrete pad to prevent the possibility of tipping See Figure 2 6 for mounting locations and more access 8 Environment and clearance of the installation shall also meet NEC and other locale code requirements Figure 2 4 Ventilation Clearances 2 5 Conduit Installation Locations 06 24 2013 00 13 m Figure 2 5 Optional Top Wire Access for Indoor Application Only 8 4411 0008 Rev 0 5 Installation OVERHEAD SECTION VIEW PAD BOUNTING INSTALLATION DIAGRAM 13 54 REF CABINET OVERALL DIMENSION 29 00 wo a o Cc LA SE 27 00 al 8 e x3 a s 1 Js dx O C I Li E a 31 00 REF 31 79 CHASSIS OVERALL p x CENTER guo ud CLEAREMCE HOLES FOR om PAD MOUNTING STUDS E B TO CHASSIS WOUNTING STUDS 16 p 540 GLAND COWER GLAND AIPA 1 z Figure 2 6 Pad Mounting and Conduit Hole Locations Access through bottom floor Top View 4411 0008 Rev 0 5 9 Wiring Instructions Installation 3 1 Installation Tools and Materials Tools Required These tools will be requir
50. ure roof to allow for easy connection to a Local Area Network LAN The internal connection of this Ethernet port is routed to an RJ 45 jack on the BIGI 250 system Control Board located on the inside of the enclosure door described below Note If a user is connecting directly between the RJ 45 jack of a local computer and a BIGI 250 inverter RJ 45 jack without the use of a network connection router or switch etc an Ethernet Crossover cable may be required for proper communication RJ 45 The user should verify that an Ethernet cable is plugged into the inverter s control board Figure 4 11 and into an active Ethernet jack Open up a web browser e g Internet Explorer after the software has been installed on the computer workstation Type the inverter s Host Name the default is B G Serial Number e g BIGII23 into the web browser s address If the browser first displays a security warning before displaying the Web Interface page grant security access This is usually done by right clicking the security warning and selecting Allow Blocked Content It will take the Web Interface s Java applet a few seconds to load before displaying a login page The default login username is user and default password is user After logging in for the first time the user should change the username and password from the Change Password menu If multiple inverters are installed on the same network the user must take care
51. ver the edge of the holes to protect the cables wires Seal the Cable Wire Entrance Properly Seal the cable wire entrances properly after installing the cables wires Fail to do so could alter the airflow path and allow the BIGI 250 to be damaged due to thermal failure 22 4411 0008 Rev 0 5 Installation 06 24 2013 00 13 Figure 3 7 Power and Control Wire Entrance Std Floor and Optional Indoor top access 3 11 Input and Output Wire Connection There are number of inputs and outputs that can be configured and used by users Refer to the user manual sections 3 7 10 through 3 7 13 for set up information 3 11 1 Digital Inputs The inverter is equipped with 2 digital inputs for sending high low signals to the inverter all of which can be mapped to a number of digital parameters within the system Each digital input has a parameter associated with it that contains the ID number for the parameter to which it is mapped For digital inputs 24VDC signals are used to indicate high or low When a digital input is mapped to a parameter then the parameter is set to 1 every time the input goes high and is set to 0 every time the input goes low Whether 24V means high and 0V means low or vice versa is configurable for each channel Frame Ground 4411 0008 Rev 0 5 24VDC sian Dlg Input 0 return Szo Dig Input 1 24VDC g Inp Dig Input 1 return Dig input 0 24V

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