Conext XW+ 6848 NA Owner's Manual page 92

Configuration
3–44
Note: The XanBus communications protocol supports a maximum of twelve
Conext XW+ units in a single network.
To set up a three-phase system:
1. Follow the instructions in the Conext XW+ Inverter/Charger Installation Guide
to Daisy chain XW-phA, XW-phB, and XW-phC at each unit's AC sync port
and connect an AC sync cable between the second AC sync port in unit 2
and an AC sync port in unit 3.
2. On the Conext System Control Panel (Conext SCP), select XWabcd 00 >
Advanced Settings > Multi-Unit Config (where abcd is the model
number 6848 or 5548).
3. Optionally, change the device name or device number. Device numbers are
suggested to facilitate identifying devices on the system as well as phase
association from a device's name and number. Naming devices may be
customized as desired. Conflicting device names are allowed and will not
cause faults in the system, however giving them unique names is highly
recommended.
4. Under Invtr Mode, select:
• 3Ph L1Master for unit 1 or Phase A
• 3Ph L2Master for unit 2 or Phase B
• 3Ph L3Master for unit 3 or Phase C
5. Optionally, up to one additional Conext XW+ may be installed in parallel on
each phase (for grid-tie systems only). Additional units are called
"slave units". This configuration allows for a maximum of 6 units in a single
grouping. For larger groupings of up to 12 total units, see the Off-Grid
Systems Guide for Conext XW+ available at http://solar.schneider-
electric.com. The slave unit on each phase (parallel) must be configured as
3PhL1Slave, 3PhL2Slave, and 3PhL3Slave respectively. A maximum of
two units per phase is allowed. Under Invtr Mode, select:
• 3Ph L1Slave for unit 4 or Phase A
• 3Ph L2Slave for unit 2 or Phase B
• 3Ph L3Slave for unit 3 or Phase C
6. Confirm that the Grid or Gen wiring has the correct A, B, C phase sequence
with the three Conext XW+ Inverter/Chargers. If the phase sequence is
incorrect, the Conext system will not qualify the input AC voltage.
7. Put the wiring compartment cover back in place, and then power up the
converted units. Perform an AC voltage measurement in invert mode. Make
sure the output voltage is within 115 – 120 VAC.
Table 3-10 Example Three-phase Inverter Assignments
Line or Phase Inverter Mode
Line-1 or Phase-A 3Ph L1 Master
3Ph L1 Slave
Role Assignment
b Phase-A or Line-1 Master 10
c Phase-A or Line-1 Slave
Suggested
a
Device Number
11
975-0240-01-01