34
2.0 INSTALLATION
©2000 Xantrex Technology Inc.
Series Stacking
This COM port allows two DR Series inverter/chargers to be used in the same system in a
SERIES configuration to operate 240 VAC loads. Series stacking can also be used to connect to
240 VAC only power systems providing both 120 and 240 VAC outputs. A series stacking interface
cable (DRI) is required to connect the series stacking port of the inverters. In this mode, one of the
inverters will function as the primary and the other inverter becomes the secondary. The
first
unit
switched ON becomes the
primary
and ensures the secondarys output is 180 degrees out of phase
for 240 VAC operation. Both units can charge the batteries or provide battery backup power during a
utility outage.
The following illustrations provide a general overview of AC and DC wiring configurations and
output voltages supplied by stacked inverters. Detailed wiring and operating instructions are
provided with the DRI interface kit available from Xantrex Technology Inc.
NOTE: Only 120 VAC/60 Hz models can be stacked.
120 VAC
L1
L2
N
E
U
T
R
A
L
GROUND
SERIES STACKING
CABLE (DRI)
INVERTER 2 (L2)
INVERTER 1 (L1)
NEUTRAL IN
HOT L1
HOT L2
NEUTRAL OUT
HOT OUT
NEUTRAL OUT
NEUTRAL IN
HOT IN
GROUND
HOT OUT
NEUTRAL OUT
NEUTRAL IN
HOT IN
GROUND
BOND
WIRE
GROUND
N
E
U
T
R
A
L
240 VAC
120 VAC
L1
L2
SUB-PANEL
MAIN PANEL
L1
L2
GROUND
GROUND
NEUTRAL OUT
L1
L2
975-0012-D-014
DRI
COM PORT
DRI
COM PORT
Figure 28
Series Stacking AC Wiring
(120 VAC/60 Hz models only)
Содержание Trace DR Series
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