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Xantrex ISC-S, Installation Manual

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Xantrex ISC-S Installation Manual Download Page 18

1–6

What it 
does

The 

ISC-S cable

 provides communication between the two stacked inverters for two 

purposes.

•

It provides synchronization information for inverting and charging.

•

It 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.

What it 
does not do

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.

Summary of Contents for ISC-S

Page 1: ...www xantrex com Smart choice for power Inverter Stacking Control Series ISC S Cable Installation Guide ...

Page 2: ......

Page 3: ...Inverter Stacking Control Series ISC S Cable Installation Guide ...

Page 4: ...are used herein for identification purposes only Notice of Copyright Inverter Stacking Control Series ISC S Cable Installation Guide 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 O...

Page 5: ...ended 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 Organization 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 A...

Page 6: ...ions 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 AC Alternating Current ASC Authorized Service Center BTS Battery Temperature Sensor DC Direct Current DCCB DC Condui...

Page 7: ...y If the ISC S cable is damaged see the Warranty section 5 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 6 To reduce the risk of electrical shock disconnect both AC and DC power from the inverters before attempting any maintenance or cleaning or work...

Page 8: ...vi ...

Page 9: ... 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 Genera...

Page 10: ...viii ...

Page 11: ... 3 DC Connections for Dual Inverters Series stacked 2 5 Figure 2 4 AC Wiring for Series stacked SW Plus Inverters Off Grid 2 9 Figure 2 5 AC Wiring for Series stacked SW Plus Inverters OnGrid 2 11 Figure 2 6 Generator Wiring to Series stacked SW Plus Inverters 2 13 Figure 2 7 AC Wiring for a 240 Vac Only Input Source 2 15 Figure 2 8 The 25 pin D connector on the ISC S Cable 2 16 Figure 2 9 Stackin...

Page 12: ...x ...

Page 13: ...ction 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 ...

Page 14: ...the inverters to synchronize their hot outputs to be 180 degrees out of phase with each other 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 ...

Page 15: ...Stacking Inverters 975 0059 01 01 Rev A 1 3 Figure 1 1 Off Grid Applications with Series Stacked Inverters ...

Page 16: ...Introduction 1 4 975 0059 01 01 Rev A Figure 1 2 On Grid Applications with Series stacked Inverters ...

Page 17: ...dentical 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 cov...

Page 18: ...rter 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 What it does not do 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 ...

Page 19: ... 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 ...

Page 20: ...t 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 ...

Page 21: ...ng of Series stacked Inverters GROUND SHUNT NEGATIVE BUS DC DISCONNECT 01A Inverter OFF SRCH ON CH G R e s e t D e f a u l t s C o n t r a s t O N O F F M E N U M E N U H E A D I N G S M E N U I T E M S S E T P O I N T S IN V G E N I nvert er C ont rol M odul e G R I D T I E I N V ER T A C 2 F L O A T S T A T U S E R R O R B U L K A C 1 xantrex xantrex Sine Wave Plus Inverter Charger Chassis Bondi...

Page 22: ...he same battery NEGATIVE terminal torque to manufacturer s recommendations to the ground bond in the DC disconnect b a second cable from the same battery NEGATIVE terminal torque to manufacturer s recommendations to the ground bond in the DC discon nect c a third 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 dis...

Page 23: ... 1d Chassis Bonding Ground Lug 01A Inverter OFF SRCH ON CHG R e s e t De f a u l t s C o n t r a s t ON OF F ME NU ME NU HE A DI N GS ME N U I T E M S S E T P OI N T S IN V G EN Inverter C ontr ol M odule G RI DT I E I N V E R T AC 2 F L OA T S T A T US E RR OR BU L K AC 1 xantrex xantrex S ine Wave P lus Inverter Charger L1 Inverter 01A Inverter OFF SRCH ON CHG Re s e t D e f a u l t s Co n t r a...

Page 24: ...o 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...

Page 25: ...erter 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 Grounding Ensure all components are grounded properly for safety and for code compliance WARNING Hazardous Voltage When s...

Page 26: ...anel ground bar c from the L2 inverter AC ground bar to the inverter panel ground bar Neutral Bonds 2 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...

Page 27: ...BAR inside L2 AC TERMINAL BLOCK INV OUT NEUTRAL OUT NEUTRAL 2 NEUTRAL 1 AC1 GRID AC2 GEN Sine Wave Plus Inverter Charger L1 L2 NEUTRAL GROUND LEGEND GROUND NEUTRAL HOT L1 HOT L2 NEUTRAL GROUND BOND AC GROUND BAR inside To AC Loads To primary Earth ground connections L1 Sine Wave Plus Inverter Charger 120 240 Vac AC Distribution Panel Inverter Panel To AC Loads 1a 1b 1c 2c 2b 3a 3b 2a 1b 1c 3a 3b ...

Page 28: ...TRAL 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 NEUTRAL OUT terminal to the AC distribution panel neutral bus Common neutral bond in sub panel Inverter to AC Distribution Panel 3 Connect HOT wires a black from ...

Page 29: ...EUTRAL 1 AC1 GRID AC2 GEN Sine Wave Plus Inverter Charger 120 240 Vac Panel L1 L2 NEUTRAL GROUND L1 L2 L1 L2 NEUTRAL GROUND LEGEND GROUND NEUTRAL HOT L1 HOT L2 NEUTRAL GROUND BOND AC GROUND BAR inside AC GROUND BAR inside To AC Loads To primary Earth ground connections L2 L1 Sine Wave Plus Inverter Charger 120 240 Vac AC Distribution Panel Sub panel Main Utility Panel To AC Loads 1a 1b 1c 2a 2c 2b...

Page 30: ...al b from the generator disconnect switch NEUTRAL to the L1 INVERTER NEUTRAL 2 terminal 3 Connect HOT 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 4 Connect HOT L2 red wires a from the generator L2 HOT OUT to the generator disconnect switch L2 HOT terminal b from the generator disconn...

Page 31: ...D AC2 GEN Sine Wave Plus Inverter Charger 120 240 Vac Panel L1 L2 NEUTRAL GROUND L1 L2 Generator Disconnect Switch optional Generator 120 240 Vac GROUND NEUTRAL GEN HOT OUT L1 L2 G N L1 L2 LEGEND GROUND NEUTRAL HOT L1 HOT L2 NEUTRAL GROUND BOND AC GROUND BAR inside AC GROUND BAR inside To AC Loads To primary Earth ground connections L2 L1 Sine Wave Plus Inverter Charger 120 240 Vac AC Distribution...

Page 32: ...l to the Ground bar in the L1 inverter e from the AC Distribution Panel to the Ground bar in the L2 inverter 2 Run NEUTRAL wires white a from the center tapped neutral connection in the autotransformer to the NEUTRAL 1 terminal in the L1 inverter b from the center tapped neutral connection in the autotransformer to the NEUTRAL 1 terminal in the L2 inverter c from the NEUTRAL OUT on the L1 inverter...

Page 33: ... 1 AC1 GRID AC2 GEN Sine Wave Plus Inverter Charger L1 L2 NEUTRAL GROUND LEGEND GROUND NEUTRAL HOT L1 HOT L2 NEUTRAL GROUND BOND AC GROUND BAR inside AC GROUND BAR inside To AC Loads To primary Earth ground connections L2 L1 120 240 Vac AC Distribution Panel Inverter Panel To AC Loads Neutral L1 L2 Ground GROUND L1 Generator 240 Vac ONLY GEN HOT OUT L2 Auto transformer with center tapped neutral o...

Page 34: ...o 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 3 Connect the other end of the ISC S cable to the second inverter s Stacking Port as instructed in step 1 and 2 Figure 2 8 The 25 pin D connector on the ISC S Cable Figure 2 9 Sta...

Page 35: ...ters Connect one end of ISC S Cable to the Stacking Port of the L1 inverter Connect the other end of ISC S Cable to the Stacking Port of the L2 inverter 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 ...

Page 36: ...2 18 ...

Page 37: ... 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 ...

Page 38: ...on 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 6 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 7 If all voltages tests are correct a switch on the circuit brea...

Page 39: ... 3 1 Testpoints for Confirming Voltages L1 L2 NEUTRAL GROUND LEGEND GROUND NEUTRAL HOT L1 HOT L2 To 240 Vac Loads AC Distribution Panel Sub panel 120 240 Vac To 120 Vac Loads To Main Utility Panel Ground To L2 Inverter To L2 Inverter To L1 Inverter 6 5 4 ...

Page 40: ...OLTS DC to the same setting on both inverters Set the 12C FLOAT VOLTS DC to the same setting on both inverters 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 12F BULK DONE AMPS is set to zero 0 then th...

Page 41: ...ntrolling 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 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 cur...

Page 42: ...3 6 ...

Page 43: ...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 contiguous United States and Canada How do you...

Page 44: ...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 LO...

Page 45: ...ere you can be reached during work hours 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 produ...

Page 46: ...____________ Length of 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 ________________...

Page 47: ...our 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 N 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...

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Page 50: ...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 ...

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