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© 2001 Xantrex Technology Inc.  All Rights Reserved.

P/N  975-0013-01-01  Rev B 10/01

1

1.0  INTRODUCTION

SWI Stacking Interface Cable Kit

The SWI Stacking Interface Cable is an accessory for SW and PS Series inverters. This cable allows the AC

output of two (identical) inverters to be connected in a series configuration, providing both 120 and 240 VAC, 60 Hz
power for the loads. The AC input to the inverters is provided by the L1 and L2 legs of the utility grid (or 120/
240 VAC generator) with L1 connected to the input of one inverter and L2 connected to the corresponding input of
the other inverter (i.e., AC1 of both inverters).

Stacking is also an excellent choice for providing power to multi-wire branch circuits where stand alone

(120 VAC) inverters may require extensive rewiring within the building.

The SWI Stacking Interface Cable kit consists of:

• This Installation Guide

• One 42-inch stacking interface cable, complete with two 25-pin D connectors

CAUTION: Do not use a standard computer cable in place of the SWI stacking interface
cable.

Figure 1-1

Stacking Interface Cable

Содержание SWI

Страница 1: ...Stacking Interface C SWI Stacking Interface C SWI Stacking Interface C SWI Stacking Interface C SWI Stacking Interface Cable able able able able for SW and PS Series Inverters for SW and PS Series Inv...

Страница 2: ...is guide Xantrex International assumes no responsibility for errors or omissions Note as well that specifications and product functionality may change without notice Since the use of this manual and t...

Страница 3: ...Cette d claration est importante Suivre les instructions de pr s All electrical work must be done in accordance with local national and or international electrical codes Before installing or using thi...

Страница 4: ...ent the possible buildup of explosive gasses If the batteries are installed inside an enclosure vent its highest point to the outdoors When installing batteries allow at least 1 inch of air space betw...

Страница 5: ...ack DC Wiring two disconnect devices 10 Wiring with a Conduit Box 11 Battery Connections for Stacked Inverters 11 Series Stacking AC Wiring 13 Input Wiring SW Series Figure 2 7 13 Utility Input 13 Gen...

Страница 6: ...of the utility grid or 120 240 VAC generator with L1 connected to the input of one inverter and L2 connected to the corresponding input of the other inverter i e AC1 of both inverters Stacking is als...

Страница 7: ...2001 Xantrex Technology Inc All Rights Reserved P N 975 0013 01 01 Rev B 10 01 2 1 0 INTRODUCTION Notes...

Страница 8: ...ently of each other however their output is phase locked and synchronized 180 degrees out of phase Both units can independently charge the batteries or provide battery backup power during a utility ou...

Страница 9: ...L I N E I T E M R E S E T T O F A C T O R Y D E F A U L T S C O N T R O L P A N E L S E T P O I N T S H E A D I N G S M E N U G E N M E N U O N O F F M E N U Power Conversion Center TRACE ENGINEERING...

Страница 10: ...vice connect the units and batteries as follows Tie the inverter s negative terminals together using an appropriate length of cable sized to fit Connect one of the inverter s negative terminals to the...

Страница 11: ...s to the DC disconnect Connect a short cable from the DC disconnect to the positive terminal of the battery bank Connect a cable from the L2 inverter s positive terminal to the DC disconnect Connect a...

Страница 12: ...tery 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 2 and negative cable to string 1 for inv...

Страница 13: ...both inverters To ensure even charging of the batteries each inverter must be connected to both strings i e positive cable to string 2 and negative cable to string 1 for inverter L1 and positive cable...

Страница 14: ...inal to the GROUND terminal in the L2 inverter Connect a wire from the neutral bus in the main service panel to the NEUTRAL IN terminal in the L1 inverter Connect a second wire to the NEUTRAL OUT term...

Страница 15: ...2 AC HOT IN 1 AC HOT OUT NEUTRAL OUT NEUTRAL IN 2 NEUTRAL IN 1 AC HOT IN 2 AC HOT IN 1 Chassis AC GROUND Terminal SW INVERTER 1 L1 SW INVERTER 2 L2 Chassis AC GROUND Terminal NEUTRAL To Generator Gro...

Страница 16: ...OUT terminal and route this wire to the L2 inverter s NEUTRAL IN terminal Keep this wire as short as possible Connect a wire from the main service panel s hot L1 line to the L1 inverter s AC HOT INPUT...

Страница 17: ...e Gas Heat Fan Garage Doors Series Stacking continued Output Wiring SW Series The output of each inverter provides 120 VAC The voltage between the HOT outputs from the L1 and L2 inverter is 240 VAC Co...

Страница 18: ...wire from the HOT 120 VAC output from the L2 L2 L2 L2 L2 inverter to the L2 terminal in the sub panel WARNING ENSURE THE ONLY NEUTRAL GROUND BOND IS IN THE UTILITY SERVICE PANEL REMOVE ANY BONDING FR...

Страница 19: ...te 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 A Trace Series Stacking c...

Страница 20: ...ub panel 3 Use an AC voltmeter and measure the voltage between the L1 terminal and neutral bus in the sub panel This voltage should be 120 VAC 3 4 Measure the voltage between the L2 terminal and neutr...

Страница 21: ...ime To start an Equalize charge manually or automatically set both inverters to EQ accessible by pressing the green GEN MENU button on the SWRC This allows both inverters to charge at the equalize vol...

Страница 22: ...t t t t t 1 360 435 8826 f f f f f 1 360 435 2229 drc xantrex com www xantrex com P N 975 0013 01 01 Rev B 10 01...

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