2.0 INSTALLATION
© 2001 Xantrex Technology Inc. All Rights Reserved.
P/N 975-0013-01-01 Rev B 10/01
1 0
Series Stacking (continued)
Series Stack DC Wiring (two disconnect devices)
When stacking two inverters using two DC disconnect devices, connect the units and batteries as follows (refer
to Figure 2-4):
• Tie the inverter’s negative terminals together using an appropriate length of cable (sized to fit).
• Connect a cable from the L1 inverter’s negative terminal to the negative terminal of the battery bank.
• Connect a cable from the L2 inverter’s negative terminal to the negative terminal of the battery bank.
• Connect a cable from the L1 inverter’s positive terminals 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 short cable from the DC disconnect to the positive terminal of the battery bank.
• Connect the Series Stacking Cable (SWI) to the STACKING port of both inverters.
• Connect the inverter’s DC chassis ground lugs together using a heavy gauge wire.
NOTE: Connect the positive and negative wires to the batteries as show in the illustration
below. This ensures an even charge and discharge through the battery bank.
Figure 2-4
Series Stacking Using Two DC Disconnects (Block Diagram)
+
–
+
–
Series Stacking
Cable (SWI)
Inverter 1 (L1)
Inverter 2 (L2)
DC
Disconnect
Negative
Tie
+
–
+
–
+
–
+
–
DC
Disconnect
NOTE: Series Stacking
Cable connects on AC
side for SW inverters
Chassis ground
DC Ground
