Installation Manual

Basic Functional Test – Single Inverter
975-0239-01-01 Rev J 3–35
This manual is for use by qualified personnel only
Figure 3-22 Functional Test for Single Inverter Systems
AC OUT
LL2NL1
AC
IN
AC
O
UT
AC OUT
AC
IN
G
RI
D
(
A
C
1
)
AC
L
O
A
D
G
E
N
(
A
C
2)
N
L1
L2
N
L1
L2
L2
N
N
L1
L1
L
2
Check/verify all
wiring and cable
connections
Measure DC Voltage and
confirm the correct
polarity at all of the cable
connections
Within tolerance?
44 to 64 volts for a 48~volt system
Is polarity on cables correct?
Check Battery Bank.
Recharge by external
charger if necessary.
Correct Polarity on Cable
Connections.
Apply DC Power
Check display for
startup self-test
If unit powers up in 
enable operating mode
Enable Inverter
Check for Faults
Faults?
Correct fault condition.
Restart Functional Test.
Consult Troubleshooting
section in the Conext
XW+ Owner’s Guide.
Restart functional test.
Close AC Load
breaker.
Confirm operation
of AC Load.
Open AC Load
breaker.
Proceed to
Charger Functional
Tes t
Within range?
Check AC Voltage
Press the Startup/
Shutdown and Equalize
buttons simultaneously
to enable invert mode.
 is displayed briefly.
Yes
Yes
No
No
No
Press the Startup/
Shutdown button
momentarily.
XW-NA-Install.book Page 35 Wednesday, August 12, 2015 2:23 PM