
Basic Functional Test - Multiple Inverters
Basic Functional Test - Multiple Inverters
The following steps will complete a basic functional test of multiple XW Inverter/ Chargers. If any test fails, please refer to the Troubleshooting section in the XW Inverter/ Charger Operation Guide for assistance.
To perform a functional test on multiple inverters:
1.Check/verify all wiring and cable connections.
2.Measure DC voltage at the DC terminals on the inverter and confirm its within range and has correct polarity. The acceptable range is >20 Vdc for 24 V system or >40 Vdc for
3.Switch INV1 DISCONNECT to ON position.
4.Check inverter display for startup
5.Using the XW System Control Panel, set First (Master) Inverter Device Number
a)Go to the inverter’s Advanced Settings menu by pressing Down arrow + Enter from System Status screen and then simultaneously pressing Enter + Up arrow + Down arrow.
b)Select Multi Unit Config menu.
c)Change Dev Number from “00” to “01”. The inverter will now appear as
d)Press Exit to go back to the System Status screen.
6.Switch INV2 DISCONNECT to ON position.
7.Check inverter display for startup
8.Using the XW System Control Panel, set Second (Slave) Inverter Device Number and Inverter Mode.
a)Select new inverter
b)Go to the inverter’s Advanced
c)Change Dev Number from “00” to “02” (or the next number that hasn’t been used). The inverter will now appear as
d)Change Invtr Mode from “SplitPhMaster” to “SplitPhSlave”.
e)Press Exit until you see the System Status screen.
9.Check for faults. If fault condition(s) exist, correct and restart Functional Test.
10.If a third inverter is installed, repeat steps to configure it as a Slave.
11.Using the XW System Control Panel, enable the System
a)Go to System Settings menu
b)Change System Mode to “Operating”
c)Press Exit until you see the System Status screen.