Xantrex power Inverter Stacking User's Manual
Contents
1. 3 5 Warranty and Return Information WA 1 Index 2222222222222 ee re IX 1 975 0059 01 01 Rev A vii viii Figures Figure 1 1 Figure 1 2 Figure 1 3 Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 2 8 Figure 2 9 Figure 2 10 Figure 3 1 Off Grid Applications with Series Stacked Inverters 1 3 On Grid Applications with Series stacked Inverters 1 4 Inverter Stacking Control Series Cable ISC S cable 1 5 Example of Battery Connections for Series stacked Inverters 24 Vdc shown 2 2 DC Grounding of Series stacked Inverters 2 3 DC Connections for Dual Inverters Series stacked 2 5 AC Wiring for Series stacked SW Plus Inverters Off Grid 2 9 AC Wiring for Series stacked SW Plus Inverters OnGrid 2 11 Generator Wiring to Series stacked SW Plus Inverters 2 13 AC Wiring for a 240 Vac Only Input Source 2 15 The 25 pin D connector on the ISC S Cable 2 16 Stacking Port Locations on SW Plus Inverters 2 16 The ISC S Cable Connected to Dual Sine Wave Plus Inverters 2 17 Testpoints for Conf2. 2 3 Connecting the Battery Bank to the Inverters 2 4 AC Wiring General 2 6 Inverter AC Distribution Panel Sub Panel Wiring if used 2 6 Neutral Bonding 2 7 Grounding 2 7 AC Wiring Specific 2 8 Off Grid AC Wiring for Sine Wave Plus Inverters 2 8 On Grid AC Wiring for Sine Wave Plus Inverters 2 10 Generator AC Wiring to Series stacked Inverters 2 12 Wiring for a 240 Vac Only Input Source 2 14 Connecting the ISC S Cable 2 16 3 Operation Start up and Testing 3 2 Setting Changes 3 4 Automatic and Manual Generator Control 3 4 Bulk and Float Charging Parameters 3 4 Equalize Charging 3 4 Automatic Generator Equalize Charging 3 5 Manual Equalize Charging
3. I rter P I m Mim OT La s 5 L2 I NEUTRAL br E N aaa ee C Loads NEUTRAL To primary GROUND BOND Earth ground connections Figure 2 4 AC Wiring for Series stacked SW Plus Inverters Off Grid 975 0059 01 01 Rev A Sine Wave Plus Inverter Charger Installation On Grid AC Wiring for Sine Wave Plus Inverters Grounding Neutral Bonds Inverter to AC Distribution Panel Inverter to Utility Panel Prepare the AC wiring as follows for an on grid application using series stacked Sine Wave Plus Inverter chargers The following steps are illustrated in Figure 2 5 1 Connect GROUND green wires a from the primary earth ground to the main utility panel b from the main utility panel to the AC distribution panel Sub panel c from the Ll inverter AC ground bar to the utility panel ground bar d from the L2 inverter AC ground bar to the utility panel ground bar Connect NEUTRAL white wires a from the Neutral bus in the utility panel to the ground bar in the utility panel Neutral to ground bond b from the L1 inverter NEUTRAL OUT terminal to the L2 inverter NEUTRAL 2 terminal Interter to inverter neutral bond c from the L1 inverter NEUTRAL OUT terminal to the utility or utility panel neutral bus Common neutral bond in utility panel d from the L2 inverter NEUTRA
4. Use of any other cable may damage your inverter and void it s warranty Figure 1 3 Inverter Stacking Control Series Cable ISC S cable 1 5 What it does What it does not do The ISC S cable provides communication between the two stacked inverters for two purposes e It provides synchronization information for inverting and charging e t provides a method for one inverter detecting an error condition to send a shut down command to the other inverter to prevent a 240Vac load from only receiving one leg of power The ISC S cable does not allow programming or access to the display from one inverter to the other If there are changes to the default setting necessary each inverter must be programmed separately This includes selecting On in the On Off menu Installation Chapter 2 Installation provides information on installing the DC wiring AC Wiring and the ISC S for Sine Wave Plus inverters The following topics are covered in this chapter For this topic See DC Wiring page 2 2 AC Wiring General page 2 6 AC Wiring Specific page 2 8 Connecting the ISC S Cable page 2 16 Installation DC Wiring The success of series stacked inverter systems is dependent on the quality and maintenance of the DC connections Stacked inverter sets are far less forgiving to long undersized uneven and or poor connections than are single inverters Battery
5. 3 Operation contains information on startup and functional testing procedures for series stacked Sine Wave Plus inverters Warranty and Product Information is provided at the end of the Guide About This Guide Conventions Used The following conventions are used in this guide WARNING Warnings identify conditions that could result in personal injury or loss of life CAUTION Cautions identify conditions or practices that could result in damage to the unit or other equipment Important These notes describe things which are important for you to know but not as serious as a caution or warning Abbreviations and Acronyms The following acronyms and abbreviations are used in this guide AC Alternating Current ASC Authorized Service Center BTS Battery Temperature Sensor DC Direct Current DCCB DC Conduit Box DVM Digital Voltage Meter GSM Generator Start Module ISC S cable Inverter Stacking Control Series Cable Hz Hertz RMA Return Material Authorization Vac AC Voltage Related Information You can find more information about Xantrex Technology Inc as well as its products and services at www xantrex com 975 0059 01 01 Rev A Important Safety Instructions N WARNING This chapter contains important safety and operating instructions Read and keep this Installation Guide for future reference 975 0059 01 01 Rev A l Before installing and
6. ARA Earth ground t ermee ee O Chain connections I 65 ib OLE san l ER DNE E A 7s i H Generator 4 Me EN E Disconnect i ee N e 1 Switch Mi tt Pri Sine Wave Plus optional p La I Inverter Charger Generator _ crounp ii NEUTRAL tore i 120 240 Vac ae 1 H GEN HOT OUT H gt I sl AC TERMINAL y org BLOCK HR 5 ieu sos ietributi I 1 iss AC Distribution Panel EET EEE M Sub panel 1 222 L2 120 240 Vac m EE LI H 11 Es L2 cron cp LLL rad NEUTRAL E NEM TR 0 J LJ H lee To AC Loads e a H GROUND To AC Loads ni 5 H H H H e e LJ e aasegaadead seadacanp axCaHae Figure 2 6 Generator Wiring to Series stacked SW Plus Inverters 975 0059 01 01 Rev A 2 13 Installation Wiring for a 240 Vac Only Input Source A 240 Vac source does not allow for the connection to the input of a 120 Vac inverter as no neutral line is supplied from the utility or generator In order to use stacked inverters a neutral line must be added by using a center tapped autotransformer such as a T240 on the inverter s input This will create the necessary neutral return line for the inverters and half the voltage for each inverter to 120 Vac The output of the inverter supplies both 120 and 240 Vac to the loads The ISC S cable and autotransformer capable of handling the system s power requ
7. Automatic and Manual Generator Control When multiple inverters are used with a generator the inverter connected to the generator via the Generator Start Module GSM is designated as the generator controlling inverter The most efficient battery charging is achieved by setting the charging parameters of each inverter slightly differently Bulk and Float Charging Parameters Change the Bulk and Float Charging settings as follows e Set the 12B BULK VOLTS DC to the same setting on both inverters e Set the 12C FLOAT VOLTS DC to the same setting on both inverters e On the non generator controlling inverter the inverter not connected to a GSM set the charging time for a shorter period than on the generator controlling inverter This is accomplished by setting the 12F BULK DONE AMPS to a higher setting If the 127 BULK DONE AMPS is set to zero 0 then the 12H MAX BULK EQ Timer h m should be set to a shorter time period on the non generator controlling inverter Equalize Charging Change the Equalize Charging settings as follows e Set both inverters to the same 12D EQUALIZE VOLTS DC setting e Set the 12G EQ VDC DONE TIMER H M on the generator controlling inverter to a shorter equalize time To start an Equalize charge manually or automatically set both inverters to EQ by scrolling to 01B EQ CHARGE ON OFF and selecting ON During the equalize charge the Bulk LED will slowly flash on each inverter indicating the EQ selec
8. Requirements for Series stacked Inverters When inverters are stacked they must operate from a common battery bank In other words the DC negative of one inverter must be common with the second inverter and likewise for the DC positive For example If you have eight 6 volt batteries in a 24 volt configuration they would be arranged in two rows of four batteries see Appendix C of the Sine Wave Plus Owner s Manual for diagrams of various arrangements The negative ends of the two strings of batteries must be jumpered together to become common with each other Likewise the positive ends of the two strings must also be jumpered together so that they are also common with each other Battery Bank Configuration for Series stacked Inverters When using inverters in a stacked configuration the same battery bank must be used for both inverters To ensure even charging of the batteries each inverter must be connected to both strings i e positive cable to string two and negative cable to string one for inverter 1 and positive cable to string one and negative cable to string two for inverter 2 as shown in Figure 2 1 In other words a separate positive and negative cable pair is required for each inverter in the series stacked configuration This means there will be four battery cables from the stacked inverters to the battery bank Refer to the Owner s Manual for the Sine Wave Plus to determine the correct size a
9. This maintains the wattage output at the rated level but doubles the voltage output available thereby allowing 240 Vac loads to be supported by the system Example Two series stacked Sine Wave Plus 4024 Vac inverters can run both 120 Vac and 240 Vac loads at 33 amps continuous output Stacking inverters in a series configuration requires the use of the Inverter Stacking Control Series ISC S Cable 975 0059 01 01 Rev A Stacking Inverters Renewable Energy RE Sources Photovoltaic Panels Generator 120 240 Vac 1 ot n equipped ven e ii i Remote Monitor Options iiti START MOOULE popkes tne ICA Ti we d an iet eventu P o ul gt orm XS wv gi m pi al INVERTER PANEL 120 240 Vac Sine Wave Plus Inverter Charger Battery Temperature id Sensors BTS AA vi Sine Wave Plus Inverter Charger 120 240 Vac Loads Se A BH gt BATTERY BANK Figure 1 1 Off Grid Applications with Series Stacked Inverters 975 0059 01 01 Rev A 1 3 Introduction Renewable Energy RE Sources Photovoltaic Panels Utility DC DIVERSION LOAD Tor Wind or Hydro Generar Generator 120 240 Vac externally located and Utility Panel equipe ven ato ele i Remote Monitor 120 240 Vac Options Purnseal Computer zx se z ren e x ze ase bF 4 v IN wow
10. Xantrex Technology Inc 1 800 670 0707 Tel toll free NA 1 360 925 5097 Tel direct 1 800 994 7828 Fax toll free NA 1 360 925 5143 Fax direct customerservice xantrex com Www Xantrex com PN 975 0059 01 01 PC Printed in USA
11. the AC2 GEN terminal in the L2 inverter red from the INV OUT terminal in the L2 inverter to the L2 input terminal in the AC Distribution Panel 4 Torque all inverter terminal block connections to 25 inch pounds 975 0059 01 01 RevA AC Wiring Specific Sine Wave Plus Inverter Charger e AC TERMINAL BLOCK L1 rire MEM LOO ANI e ce mee amp pum no Tvu nan N c z uina C L IVHISN To AC Loads AC TERMINAL BLOCK Sine Wave Plus Inverter Charger O Teen ue 9 10 ANI C als Ino Wwuinan O M ES zwana C S e L IVELNAN Di N39 zov US 1U IED LOW Io Tas id pe EN DIR KK je _ z 8 2 el nt NEUTRAL GROUND BOND ES Ground Auto transformer with center tapped neutral out LEGEND GROUND NEUTRAL HOT L1 HOT L2 120 240 Vac Inverter Panel 8c cen Hor I Mi OUT Generator 240 Vac ONLY AC Distribution Panel 4 amp 3 GROUND To primary Earth ground connections Figure 2 7 AC Wiring for a 240 Vac Only Input Source 2 15 975 0059 01 01 RevA Installation Connecting the ISC S Cable The ISC S Cable connects to the Stacking Port on the AC end of the Sine Wave Plus Inverter charger The Stacking Port is a 25 pin receptacle for the 25 pin D conne
12. time inverter has been installed Battery battery bank size Battery type e g flooded sealed gel cell AGM DC wiring size and length Alarm sounding Description of indicators on front panel Appliances operating when problem occurred oo 0 0 0 0 0 0 Description of problem WA 4 975 0059 01 01 Rev A Index Numerics 240 Vac Only Input Source 2 14 A Abbreviations and Acronyms iv AC Wiring General 2 6 AC Wiring Specific 2 8 B Battery Requirements 2 2 Battery Bank Configuration 2 2 Bulk and Float Charging Parameters 3 4 C Connecting the Battery Bank 2 4 Customer Service preparing to call WA 4 D DC Wiring 2 2 G Generator AC Wiring 2 12 Generator Control 3 4 Grounding 2 3 2 7 I Information about Your System form WA 4 inverter purchase date WA 4 serial number WA 4 Inverter Stacking Control Series ISC S cable 1 5 ISC S Cable 1 5 ISC S Cable Connections 2 16 M Multi wire branch circuits 1 2 Neutral Bonding 2 7 O Off Grid AC Wiring 2 8 Off Grid Applications with Series Stacked Inverters 1 3 On Grid AC Wiring 2 10 On Grid Applications with Series stacked Inverters 1 4 P proof of purchase WA 4 purchase date WA 4 S Stacking Inverters 1 2 Start up 3 2 Sub Panel 2 6 T Testing 3 2 testpoints 3 2 w warranty out of warranty service W A 3 terms and conditions WA 1 X Xantrex web site iv IX 2
13. BY CONTRACT TORT NEGLIGENCE PRINCIPLES OF MANUFACTURER S LIABILITY OPERATION OF LAW CONDUCT STATEMENT OR OTHERWISE INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY OR CONDITION OF QUALITY MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT REQUIRED UNDER APPLICABLE LAW TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIOD STIPULATED UNDER THIS LIMITED WARRANTY IN NO EVENT WILL XANTREX BE LIABLE FOR ANY SPECIAL DIRECT INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES LOSSES COSTS OR EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING WITHOUT RESTRICTION ANY ECONOMIC LOSSES OF ANY KIND ANY LOSS OR DAMAGE TO PROPERTY ANY PERSONAL INJURY ANY DAMAGE OR INJURY ARISING FROM OR AS A RESULT OF MISUSE OR ABUSE OR THE INCORRECT INSTALLATION INTEGRATION OR OPERATION OF THE PRODUCT Exclusions If this product is a consumer product federal law does not allow an exclusion of implied warranties To the extent you are entitled to implied warranties under federal law to the extent permitted by applicable law they are limited to the duration of this Limited Warranty Some states and provinces do not allow limitations or exclusions on implied warranties or on the duration of an implied warranty or on the limitation or exclusion of incidental or consequential damages so the above limitation s or exclusion s may not apply to you This Limite
14. Connecting the Battery Bank to the Inverters The following instructions are illustrated in Figure 2 3 To connect the battery or battery bank to the inverters 1 Connect POSITIVE cables a one cable from the battery POSITIVE terminal to a circuit breaker in the DC disconnect torque to manufacturer s recommendations The DC disconnect should be located as close to the batteries as possible b asecond cable from the same battery POSITIVE terminal to another circuit breaker in the DC disconnect c a third cable from the first circuit breaker in the DC disconnect to the L2 inverter POSITIVE terminal d a fourth cable from the second DC disconnect to the L1 inverter POSITIVE terminal 2 Connect NEGATIVE cables a one cable from the same battery NEGATIVE terminal torque to manufacturer s recommendations to the ground bond in the DC disconnect b asecond cable from the same battery NEGATIVE terminal torque to manufacturer s recommendations to the ground bond in the DC discon nect c athird cable from the ground bond in the DC disconnect to the L2 inverter NEGATIVE terminal d a fourth cable from the ground bond in the DC disconnect to the L1 inverter NEGATIVE terminal Ensure the correct polarity of the cables with a DC voltmeter DVM 4 Use an insulated 1 2 inch wrench or socket to tighten the 5 16 SAE nuts to 10 15 foot Ib for each inverter input terminal 5 After tightening the connection
15. FOR LOSS OR DAMAGE WHETHER DIRECT INDIRECT CONSEQUENTIAL OR INCIDENTAL WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER S RISK Date and Revision January 2004 Rev A Part Number 975 0059 01 01 Rev A Contact Information Telephone 1 800 670 0707 toll free North America 1 360 925 5097 direct Fax 1 800 994 7828 toll free North America 1 360 925 5143 direct Email customerservice xantrex com Web www xantrex com About This Guide Purpose Scope Audience Organization 975 0059 01 01 Rev A The purpose of this Installation Guide is to provide explanations and procedures for installing the Inverter Stacking Control Series Cable and provides information regarding stacking two identical Sine Wave Plus inverters The Guide provides safety guidelines detailed planning and setup information for stacking inverters and procedures for installing the ISC S cable The Guide is intended for anyone who needs to install series stacked Sine Wave Plus inverters using the Inverter Stacking Control Series Cable Installers should be certified technicians or electricians This Guide is organized into three chapters Chapter 1 Introduction provides information on stacking of Sine Wave Plus inverters Chapter 2 Installation provides information on installing the DC wiring AC Wiring and the ISC S for Sine Wave Plus inverters Chapter
16. L OUT terminal to the AC distribution panel neutral bus Common neutral bond in sub panel Connect HOT wires a black from the L1 inverter AC HOT OUTPUT 120 Vac to the inverter panel L1 terminal b red from the L2 inverter AC HOT OUTPUT 120 Vac to the inverter panel L2 terminal Connect HOT wires a black from the utility panel HOT L1 terminal to the L1 inverter s ACI GRID terminal b red from the utility panel HOT L2 terminal to the L2 inverter s AC1 GRID terminal Torque all inverter terminal block connections to 25 inch pounds 1 This connection may already exist from the original installation of AC service to the building 975 0059 01 01 RevA AC Wiring Specific Main Utility Panel LEGEND 120 240 Vac Panel eee GROUND L162 L2 3 NEUTRAL HOT L1 NEUTRAL GROUND HOTL2 NEUTRAL BOND Sine Wave Plus Inverter Charger D TO I ni J y L2 i 3 erounn 3 Pr AC TERMINAL i 9899929900090 GROUND BLOCK P B GG n 1 BAR 5 71 4 H inside ra i OF ona eae i d PS 88 222 5 L 2 L2 E do E L1 H g lt lt zzz 2 I H eoccocce Mila e g yo oogmn o i wobedecccccccccce O ETE E EE T S El gag 1 To primary A Ba Earth ground a id vim Ses s m 4a a c
17. UTLPY T m EOS gt ii Sine Wave Plus INVERTER M Inverter Charger 120 240 Vac fl Wie T STACIONG INTERFACE CARLE Exe gt TEES i Sine Wave Plus AA Inverter Charger AUXILIARY LOAD 120 240 Vac Loads gt Poi eee ee eee ee eeeeeeee Figure 1 2 On Grid Applications with Series stacked Inverters 1 4 975 0059 01 01 RevA The ISC S Cable The ISC S Cable Required accessory cable Stacking two identical inverters requires the use of the Inverter Stacking Control Series Cable ISC S cable The ISC S cable is a special cable specifically designed for series stacking two identical inverters It consists of one 36 inch stacking control cable with two 25 pin D connectors It connects to the Stacking Ports on the respective inverters and allows the AC output of two identical inverters to provide both 120 and 240 Vac 60 Hz CAUTION Damage to Equipment Do not use a standard computer cable in place of the ISC S cable cable This ISC S cable is custom made for Xantrex to allow series stacking with the SW Plus Inverter charger Look for the label as shown in Figure 1 3 to properly identify the cable Use of any other cable may damage your inverters and will not be covered by Warranty Repair 975 0059 01 01 Rev A Xantrex ISC S Cable CAUTION This cable is designed for series stacking of the SW SW Plus or PS inverters only
18. a Installation Guide Inverter Stacking Control Series ISC S Cable www xantrex com Smart choice for power xa ntrex Inverter Stacking Control Series ISC S Cable Installation Guide About Xantrex Xantrex Technology Inc is a world leading supplier of advanced power electronics and controls with products from 50 watt mobile units to one MW utility scale systems for wind solar batteries fuel cells microturbines and backup power applications in both grid connected and stand alone systems Xantrex products include inverters battery chargers programmable power supplies and variable speed drives that convert supply control clean and distribute electrical power Trademarks Inverter Stacking Control Series Cable is a trademark of Xantrex International Xantrex is a registered trademark of Xantrex International Other trademarks registered trademarks and product names are the property of their respective owners and are used herein for identification purposes only Notice of Copyright Inverter Stacking Control Series ISC S Cable Installation GuideO January 2004 Xantrex International All rights reserved Disclaimer UNLESS SPECIFICALLY AGREED TO IN WRITING XANTREX TECHNOLOGY INC XANTREX a MAKES NO WARRANTY AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION b ASSUMES NO RESPONSIBILITY OR LIABILITY
19. ave your instruction manual ready for reference and be prepared to supply e The serial number of your product e Information about the installation and use of the unit e Information about the failure and or reason for the return e A copy of your dated proof of purchase Record these details in on page WA 4 Return Procedure 1 Package the unit safely preferably using the original box and packing materials Please ensure that your product is shipped fully insured in the original packaging or equivalent This warranty will not apply where the product is damaged due to improper packaging 2 Include the following The RMA number supplied by Xantrex Technology Inc clearly marked on the outside of the box e A return address where the unit can be shipped Post office boxes are not acceptable e A contact telephone number where you can be reached during work hours e A brief description of the problem 3 Ship the unit prepaid to the address provided by your Xantrex customer service representative If you are returning a product from outside of the USA or Canada In addition to the above you MUST include return freight funds and are fully responsible for all documents duties tariffs and deposits If you are returning a product to a Xantrex Authorized Service Center ASC A Xantrex return material authorization RMA number is not required However you must contact the ASC prior to returning the product or presenting the unit to verify an
20. ctor on the ISC S Cable Once the connector is in place it is secured by two screws on the sides of the connector Align the head of the connector Gently tighten these two screws to with the Stacking Port on the secure in place inverter and insert into the port Figure 2 8 The 25 pin D connector on the ISC S Cable Stacking Port nn fi 9 ge E i Figure 2 9 Stacking Port Locations on SW Plus Inverters To connect the ISC S cable 1 Orient the 25 pin D connector to align with the Stacking Port on the Inverter and gently press the connector into the port Use caution not to bend the pins inside the connector head 2 Tighten the screws on the connector to secure the cable to the port Connect the other end of the ISC S cable to the second inverter s Stacking Port as instructed in step 1 and 2 975 0059 01 01 Rev A Connecting the ISC S Cable Connect one end of ISC S Cable to the Stacking Port of the L1 inverter ALL i MS d B Il it ile Do Connect the other end of ITITI N ISC S Cable to the Stacking T Port of the L2 inverter IN lll a E Figure 2 10 The ISC S Cable Connected to Dual Sine Wave Plus Inverters CAUTION Damage to Loads Until the units are tested do not connect any loads to the inverters Proceed to the next chapter for Start up and Functional Testing Procedures 975 0059 01 01 Rev A 2 17 Operation Chapt
21. d Warranty gives you specific legal rights You may have other rights which may vary from state to state or province to province Warning Limitations On Use Please refer to your product manual for limitations on uses of the product SPECIFICALLY PLEASE NOTE THAT THE INVERTER STACKING CONTROL SERIES CABLE SHOULD NOT BE USED IN CONNECTION WITH LIFE SUPPORT SYSTEMS OR OTHER MEDICAL EQUIPMENT OR DEVICES WITHOUT LIMITING THE GENERALITY OF THE FOREGOING XANTREX MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE USE OF THE XANTREX INVERTER STACKING CONTROL SERIES CABLE IN CONNECTION WITH LIFE SUPPORT SYSTEMS OR OTHER MEDICAL EQUIPMENT OR DEVICES Please note that the Inverter Stacking Control Series Cable is not intended for use as an uninterruptible power supply and Xantrex makes no warranty or representation in connection with any use of the product for such purposes WA 2 975 0059 01 01 Rev A Warranty and Return Return Material Authorization Policy Before returning a product directly to Xantrex you must obtain a Return Material Authorization RMA number and the correct factory Ship To address Products must also be shipped prepaid Product shipments will be refused and returned at your expense if they are unauthorized returned without an RMA number clearly marked on the outside of the shipping box if they are shipped collect or if they are shipped to the wrong location When you contact Xantrex to obtain service please h
22. er 3 Operation contains information on startup and functional testing procedures for series stacked Sine Wave Plus inverters The following topics are covered in this chapter For this topic See Start up and Testing page 3 2 Setting Changes page 3 4 Operation Start up and Testing Stacked inverters must operate together in order to provide the 120 240 Vac to the loads The ISC S cable ensures the output from each inverter is 180 degrees out of phase for operating 240 Vac loads To start up and test the inverters 1 Ensure the circuit breakers on all AC sources utility or generator if any feeding the inverters are OFF Ensure the circuit breakers in the AC distribution panel sub panel are OFF Switch ON both inverters The inverters should be providing 120 240 Vac to the AC distribution panel In the AC distribution panel use an AC voltmeter and measure the voltage between the L1 HOT terminal and the neutral bus This voltage should be 120 Vac 3 See Figure 3 1 for testpoint locations In the AC distribution panel use an AC voltmeter and measure the voltage between the L2 HOT terminal and the neutral bus This voltage should be 120 Vac 3 See Figure 3 1 for testpoint locations In the AC distribution panel measure the voltage between the L1 HOT and L2 HOT terminals This voltage should be 240 Vac 3 See Figure 3 1 for testpoint locations If all voltages tests a
23. esent in the sub panel 2 6 975 0059 01 01 Rev A Neutral Bonding Grounding AC Wiring General The HOT output of each inverter provides 120 Vac to neutral The voltage between the HOT outputs from the L1 and L2 inverter is 240 Vac when the ISC S cable is used When using a series stacked inverter configuration it is important to provide a neutral bond between both inverters Accomplish this bond by establishing an inverter to inverter neutral bond Keep the neutral bonding jumper as short as possible to provide a better AC zero volt reference for each inverter to measure AC voltages from as well as saving on wire The neutral bond wire must be the same gauge as the other AC wires attached to the inverter Ensure all components are grounded properly for safety and for code compliance A WARNING Hazardous Voltage When stacking inverters ensure the chassis of each inverter is connected to the same common ground i e in the utility or inverter panels otherwise a hazardous voltage may be present between the chasses 975 0059 01 01 Rev A 2 7 Installation AC Wiring Specific The following AC connections are specific to installing the Sine Wave Plus Inverter chargers in a series stacked configuration for off grid and on grid applications Off Grid AC Wiring for Sine Wave Plus Inverters The following steps are illustrated in Figure 2 4 Grounding Neutral Bonds Inverter to AC Distribut
24. h NEUTRAL to the L1 INVERTER NEUTRAL 2 terminal Connect Hor L1 black wires a from the generator L1 GEN HOT OUT to the GDS L1 HOT terminal b from the generator disconnect switch L1 HOT to the L1 INVERTER AC2 GEN terminal Connect HOT L2 red wires a from the generator L2 HOT OUT to the generator disconnect switch L2 HOT terminal b from the generator disconnect switch L2 HOT to the L2 INVERTER AC2 GEN terminal Torque all inverter terminal block connections to 25 inch pounds Important If this is an off grid installation then all connections that would normally go to the Main Utility Panel should be routed to the AD Distribution Panel instead 975 0059 01 01 Rev A AC Wiring Specific Main Utility Panel LEGEND 120 240 Vac Panel j GROUND Lio L2 NEUTRAL _ HOT L1 NEUTRAL GROUND iii HOT L2 NEUTRAL BOND Sine Wave Plus Inverter Charger d O I I OUS AC TERMINAL Ld mi P es es BLOCK so agssssssse ee v 2 Pod IE uum pr eee tuU ggg 5 i eese 0 0 OS 555 il L1 4 MID IM si des z poor o ecccccecdeccecces oo Do bi i LJ To primary s 7777577 rns cedem ODI
25. ion Panel To connect the AC wiring for an off grid application using Sine Wave Plus Inverters In Connect GROUND green wires a from the primary earth ground to the AC distribution panel b from the L1 inverter AC ground bar to the inverter panel ground bar c from the L2 inverter AC ground bar to the inverter panel ground bar Connect NEUTRAL white wires a from the NEUTRAL bus in the inverter panel to the ground bar in the inverter panel Neutral to Ground Bond b from the L1 inverter NEUTRAL OUT terminal to the L2 inverter NEUTRAL 2 terminal Inverter to inverter neutral bond c from the L2 inverter NEUTRAL OUT terminal to the inverter panel NEUTRAL bus Common neutral bond in inverter panel Connect a HOT wire a black from the L1 inverter AC HOT OUTPUT 120 Vac to the inverter panel L1 terminal b red from the L2 inverter AC HoT OUTPUT 120 Vac to the inverter panel L2 terminal Torque all inverter terminal block connections to 25 inch pounds 975 0059 01 01 Rev A AC Wiring Specific Sine Wave Plus Inverter Charger LEGEND GROUND NEUTRAL o HOT L1 AC TERMINAL e s m s m a HOT L2 BLOCK GROUND 88 22 5 DAR sa 555 inside 22 222 2 CY I I I A nn RIN e AC TERMINAL BLOCK 5 NO a 5 Een BE B AC Distribution Panel ge gt rA s B NEUTRAL 1 aci crip S9 ac2 GEN
26. irements are required in this configuration To wire the inverters for a 240 Vac only input source 1 Run GROUND wires green a b c d e from the AC Distribution Panel to the primary earth ground connection from the generator ground to the AC Distribution Panel ground from the ground terminal in the Autotransformer to the AC Distribution Panel from the AC Distribution Panel to the Ground bar in the L1 inverter from the AC Distribution Panel to the Ground bar in the L2 inverter 2 Run NEUTRAL wires white a b c d from the center tapped neutral connection in the autotransformer to the NEUTRAL 1 terminal in the L1 inverter from the center tapped neutral connection in the autotransformer to the NEUTRAL 1 terminal in the L2 inverter from the NEUTRAL OUT on the L1 inverter to the NEUTRAL 2 terminal on the L2 inverter from the Neutral OUT on the L2 inverter to the Neutral terminal in the AC Distribution Panel 3 Run HOT wires a b c d e f black from the L1 Output in the generator to the L1 terminal in the Autotransformer black from the L1 output terminal in the Autotransformer to the AC2 GEN terminal in the L1 inverter black from the INV OUT terminal in the L1 inverter to the L1 input terminal in the AC Distribution Panel red from the L2 Output in the generator to the L2 terminal in the Autotransformer red from the L2 output terminal in the Autotransformer to
27. irming Voltages 3 3 975 0059 01 01 RevA ix Introduction Chapter 1 Introduction provides information on stacking of Sine Wave Plus inverters The following topics are covered in this chapter For this topic See Stacking Inverters page 1 2 The ISC S Cable page 1 5 Introduction Stacking Inverters Two identical series stacked inverters can be connected together for the following purposes e The voltage output of a single inverter is insufficient to power the 240 Vac loads attached to the system e Multi wire branch circuits exists in the current structure Please see Appendix F Multi wire Branch Circuit Wiring in the Sine Wave Plus Owner s Manual for additional information Important Inverter types and models must be identical for stacking configurations In other words you can use two SW Plus 2548 inverters or two SW Plus 4048 inverters You cannot stack a SW Plus 2548 with a SW Plus 4048 Different types of inverters cannot be intermixed in a stacking configuration Models with 230 Vac 50 Hz output cannot be series stacked Stacking inverters in a series configuration can double the output voltage at the same current level as an individual inverter Series stacking connects the neutral outputs of each inverter together and enables the inverters to synchronize their hot outputs to be 180 degrees out of phase with each other
28. nd length of cable required DC conduit for L1 Inverter DC conduit for L2 Inverter Series String 1 AAA 24 Vdc 200 Ah Series strings wired in Parallel 24 Vdc 400 Ah Series String 2 24 Vdc 200 Ah 12 Volt Battery Battery 200 Ah Figure 2 1 Example of Battery Connections for Series stacked Inverters 24 Vdc shown 2 2 975 0059 01 01 Rev A DC Wiring Grounding Series stacked Inverters To ground series stacked inverters 1 Connect the ground bond in the DC disconnect between the inverters and the batteries to the primary grounding electrode in accordance with local and national electrical codes 2 Connect an appropriately sized ground wire from the chassis bonding ground lug on the L1 inverter DC end to the ground bond inside the DC disconnect 3 Connect a second appropriately sized ground wire from the chassis bonding ground lug on the L2 inverter DC end to a different terminal in the ground bond inside the DC disconnect L1 Inverter Chassis Bonding Ground Lug DC DISCONNECT SHUNT amp NEGATIVE BUS L2 Inverter Chassis Bonding e Ground Lug Polacca RD UD RD E E GG eee a a a S mmm Y mmummm L3 GROUND mm To primary Earth ground connections Figure 2 2 DC Grounding of Series stacked Inverters 975 0059 01 01 Rev A 2 3 Installation
29. ntiguous United States and Canada How do you get service If your product requires troubleshooting or warranty service contact your merchant If you are unable to contact your merchant or the merchant is unable to provide service contact Xantrex directly at Telephone 1 800 670 0707 toll free North America 1 360 925 5097 direct Fax 1 800 994 7828 toll free North America 1 360 925 5143 direct Email customerservice xantrex com Direct returns may be performed according to the Xantrex Return Material Authorization Policy described in your product manual For some products Xantrex maintains a network of regional Authorized Service Centers Call Xantrex or check our website to see if your product can be repaired at one of these facilities What proof of purchase is required In any warranty claim dated proof of purchase must accompany the product and the product must not have been disassembled or modified without prior written authorization by Xantrex Proof of purchase may be in any one of the following forms e The dated purchase receipt from the original purchase of the product at point of sale to the end user or e The dated dealer invoice or purchase receipt showing original equipment manufacturer OEM status or e The dated invoice or purchase receipt showing the product exchanged under warranty 975 0059 01 01 Rev A WA 1 Warranty and Return What does this warranty not cover This Limited Warranty does not cover normal
30. onnections I i j 1 O e C AS I i e i i 3 Doe 0 Sine Wave Plus 0 2b Inverter Charger H a Pj BE e NE 0 AC TERMINAL i H gd BLOCK I H een E 5 AC Distribution Panel it l ac PREIS O H GROUND 55225 Sub panel 7 BAR 5 9 FEE 3 H puce H inside ae suu z L2 120 240 Vac 1 ol gelo ae ey E i Oni ie LA u Irre B i ren j l LI e a d e en mn nme nam e L LI 9 eL m ui To AC Loads i n A GROUND 7 lgeeoeaeceeog To AC Loads 0 24 v H A HE eed y e Figure 2 5 AC Wiring for Series stacked SW Plus Inverters OnGrid 975 0059 01 01 Rev A 2 11 Installation Generator AC Wiring to Series stacked Inverters With a generator disconnect switch The following wiring diagrams show the AC wiring from an AC generator to the inverters The following procedures are illustrated in Figure 2 6 Important Ensure that an inverter to inverter neutral bond is in place before proceeding with this procedure To install the AC wiring from a generator with a GDS 1 Connect GROUND green wires a from the generator GROUND to the generator disconnect switch GROUND terminal b from the generator disconnect switch GROUND to the AC Ground bar in the utility panel Connect NEUTRAL white wires a from the generator NEUTRAL to the GDS NEUTRAL terminal b from the generator disconnect switc
31. re correct a switch on the circuit breakers in the AC distribution panel and b switch on the generator or utility circuit breakers feeding the inverters Verify the inverters are charging the batteries and powering the AC distribution panel Switch both inverters OFF and open the circuit breakers to ensure all AC and DC power is turned OFF to the inverters 10 Replace all covers and panels on the inverters and sub panel 11 The series stacked inverter system is now tested and ready for use If the inverters are not operating properly please refer to the Sine Wave Plus Operator s Manual for setup and troubleshooting information 975 0059 01 01 RevA AC Distribution Panel Loads Sub panel 120 240 Vac Start up and Testing LEGEND GROUND NEUTRAL HOT L1 HOT L2 ss GROUND eeecooooooo e om u s mm u N lt gt To Main Utility Panel Ground Figure 3 1 Testpoints for Confirming Voltages 975 0059 01 01 Rev A To L1 Inverter gt To L2 Inverter To L2 Inverter To 240 Vac Loads Operation Setting Changes When operating a Sine Wave Plus in a series stacked configuration the following settings must be changed for proper operation See the Owner s Manual for the Sine Wave Plus for detailed instructions on accessing and changing the settings using the Inverter Control Module ICM on the inverter
32. red to here as the inverter panel and AC conduit must be installed before AC output wiring is connected to the dual inverters The inverter panel is a sub panel to the main utility panel Install the Inverter AC Distribution Panel and conduit as follows 1 Determine the location for the Inverter AC Distribution Panel i e the sub panel and install it according to the manufacturer s directions 2 Install an AC conduit to the inverter panel and the inverter Determine which circuits the inverter will power and install the appropriate circuit breakers into the inverter panel 4 For On Grid systems remove wires for circuits to be backed up from the main utility panel and install then in the new inverter sub panel 5 Install a double pole 60 amp maximum disconnect main circuit breaker in the inverter panel one for each leg of the circuit for L1 and L2 6 Verify that under no circumstances can utility power or generator power energize the inverter panel directly while the inverter also energizes the inverter panel WARNING Shock Hazard Verify that only one neutral ground bond exists in the system Having more than one neutral to ground bond in a system may create a shock hazard and cause some sensitive equipment to malfunction On Grid systems always have a ground to neutral bond provided by the utility meter or service entrance therefore do not need a ground to neutral bond made in the inverter panel Remove it if pr
33. s on the batteries apply antioxidant paste to the battery terminals if desired Do not apply antioxidant paste to the inverter terminals 6 Install the battery terminal covers if used red for positive black for negative over the inverter DC terminals and secure with the screws and washers provided 2 4 975 0059 01 01 Rev A Sine Wave Plus Inverter Charger L1 Inverter y L J e Chassis Bonding Ground Lug Sine Wave Plus Inverter Charger I L2 Inverter Chassis Bonding Em Ground Lug DC Conduit L2 Inverter Series strings wired in Parallel 24 Vdc 400 Ah Figure 2 3 DC Connections for Dual Inverters Series stacked 975 0059 01 01 Rev A DISCONNECT DC Wiring SHUNT amp NEGATIVE BUS Neutral to Ground Bond e E E E 4 DC Conduit for mulo L1 Inverter a To primary Earth ground connections N 12 Volt C3 Battery 200 Ah 24 Vdc 200 Ah Series String 2 24 Vdc 200 Ah 2 5 Installation AC Wiring General Be sure to use the recommended wire and disconnect size as recommended in the Owner s Manual for the Sine Wave Plus Inverter WARNING Before connecting any AC wiring ensure that there is no DC energy accessible by the inverter by opening the DC disconnect switch es Inverter AC Distribution Panel Sub Panel Wiring if used An Inverter AC Distribution Panel refer
34. tion has been enabled 3 4 975 0059 01 01 Rev A Setting Changes Automatic Generator Equalize Charging If the inverters are set to automatically charge the batteries using the generator the equalize process will begin during the next automatically started generator run period When the equalizing process has completed the generator automatically stops and the cursor returns to the OFF position in the 01B EQ CHARGE menu item on the generator controlling inverter The non generator controlling inverter must be set from EQ to OFF from the 01B EQ CHARGE menu item or it will start another equalize charge the next time the generator is started Manual Equalize Charging 975 0059 01 01 RevA If the batteries were equalized using a manually started generator or from the utility grid the FLOAT LED illuminates indicating the equalization process is complete Set the cursor to OFF on both inverters under the 01B EQ CHARGE menu item when the equalization process is complete Important If using multiple battery temperature sensors BTS ensure they are all connected to the same location battery Warranty and Return Information Warranty What does this warranty cover This Limited Warranty is provided by Xantrex Technology Inc Xantrex and covers defects in workmanship and materials in your Inverter Stacking Control Series Cable This warranty period lasts for two 2 years from the date of purchase at the point of sale to yo
35. u the original end user customer You require proof of purchase to make warranty claims This Limited Warranty is transferable to subsequent owners but only for the unexpired portion of the Warranty Period Subsequent owners also require proof of purchase What will Xantrex do Xantrex will at its option repair or replace the defective product free of charge provided that you notify Xantrex of the product defect within the Warranty Period and provided that Xantrex through inspection establishes the existence of such a defect and that it is covered by this Limited Warranty Xantrex will at its option use new and or reconditioned parts in performing warranty repair and building replacement products Xantrex reserves the right to use parts or products of original or improved design in the repair or replacement If Xantrex repairs or replaces a product its warranty continues for the remaining portion of the original Warranty Period or 90 days from the date of the return shipment to the customer whichever is greater All replaced products and all parts removed from repaired products become the property of Xantrex Xantrex covers both parts and labor necessary to repair the product and return shipment to the customer via a Xantrex selected non expedited surface freight within the contiguous United States and Canada Alaska and Hawaii are excluded Contact Xantrex Customer Service for details on freight policy for return shipments outside of the co
36. using the ISC S cable read all instructions and cautionary information in this guide Do not expose the ISC S cable to rain snow spray or water Use only attachments recommended or sold by the manufacturer Doing otherwise may result in a risk of fire electric shock or injury to persons Do not operate the ISC S cable if it has been damaged in any way If the ISC S cable is damaged see the Warranty section Do not disassemble the ISC S cable It contains no user serviceable parts See Warranty for instructions on obtaining service Attempting to service the ISC S cable yourself will void your wawrranty To reduce the risk of electrical shock disconnect both AC and DC power from the inverters before attempting any maintenance or cleaning or working on any circuits connected to the ISC S cable Turning off the inverters will not reduce this risk vi Contents Important Safety Instructions v 1 Introduction Stacking Inverters 1 2 The ISC S Cable 1 5 2 Installation DC Wiring nn 2 2 Battery Requirements for Series stacked Inverters 2 2 Battery Bank Configuration for Series stacked Inverters 2 2 Grounding Series stacked Inverters
37. wear and tear of the product or costs related to the removal installation or troubleshooting of the customer s electrical systems This warranty does not apply to and Xantrex will not be responsible for any defect in or damage to a the product if it has been misused neglected improperly installed physically damaged or altered either inter nally or externally or damaged from improper use or use in an unsuitable environment b the product if it has been subjected to fire water generalized corrosion biological infestations or input voltage that creates operating conditions beyond the maximum or minimum limits listed in the Xantrex product specifi cations including high input voltage from generators and lightning strikes c the product if repairs have been done to it other than by Xantrex or its authorized service centers hereafter ASCs d the product if it is used as a component part of a product expressly warranted by another manufacturer e the product if its original identification trade mark serial number markings have been defaced altered or removed Disclaimer Product THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY XANTREX IN CONNECTION WITH YOUR XANTREX PRODUCT AND IS WHERE PERMITTED BY LAW IN LIEU OF ALL OTHER WARRANTIES CONDITIONS GUARANTEES REPRESENTATIONS OBLIGATIONS AND LIABILITIES EXPRESS OR IMPLIED STATUTORY OR OTHERWISE IN CONNECTION WITH THE PRODUCT HOWEVER ARISING WHETHER
38. y return procedures that may apply to that particular facility Out of Warranty Service If the warranty period for your Inverter Stacking Control Series Cable has expired if the unit was damaged by misuse or incorrect installation if other conditions of the warranty have not been met or if no dated proof of purchase is available your inverter may be serviced or replaced for a flat fee To return your Inverter Stacking Control Series Cable for out of warranty service contact Xantrex Customer Service for a Return Material Authorization RMA number and follow the other steps outlined in Return Procedure on page WA 3 Payment options such as credit card or money order will be explained by the Customer Service Representative In cases where the minimum flat fee does not apply as with incomplete units or units with excessive damage an additional fee will be charged If applicable you will be contacted by Customer Service once your unit has been received 975 0059 01 01 RevA WA 3 Warranty and Return Information About Your System As soon as you open your Inverter Stacking Control Series Cable package record the following information and be sure to keep your proof of purchase Purchased From O Purchase Date If you need to contact Customer Service please record the following details before calling This information will help our representatives give you better service Type of installation Length of
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