Product Manual

Configuration
3–34 975-0240-01-01
Generator Support Settings
Generator support allows power to be automatically drawn from the batteries to
assist an AC generator on AC2 to support heavy loads on AC OUT (loads that
exceed the available power from the generator).
Generators have a limited output current and it is possible to reach this limit when
operating heavy loads. The Conext XW+ is designed to assist the generator
when heavy current demands load down the generator by supplying additional
power from the batteries.
In addition, the battery charger can reduce its charging current to the batteries
so the combined AC current required for charging and the total load current do
not exceed the capacity of the generator or trip its output breakers or fuses.
For imbalanced loads and small generators, the generator support feature may
be used. When GenSupp Plus is enabled, the Conext XW+ will connect the
center of its transformer to the AC2 input neutral to act as a load balancing
transformer. This feature will attempt to balance the load between L1 and L2.
Generator support is most effective for generators under 5 kW. See Table 3-12,
“Advanced Features Menu” on page 3–49.
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
Note: The pass through running and startup (peak) currents of generators
attached to AC2 are limited to the maximum current limits of the Conext XW+.
Note: If generator support is used with generators larger than 5 kW, it is
possible for current to recirculate. In this case, the efficiency losses would
outweigh the benefit of generator support.
XW_Operation.book Page 34 Wednesday, August 12, 2015 2:39 PM