Software Release Notes
975-0604-01-01 Revision A 5
865-1005 (Xantrex XW4548-NA)
865-1005.01_04_00.BN0015
Build number range: 1.0.0BN10 — 1.4.0BN15
Time range: Dec 13, 2007 — Dec 19, 2008
1. Started to use local time for all activities except logging where UTC is still
used. (PRN5976)
2. Implemented AC coupling which is defined as:
•In invert mode.
• Power (more than 300W) flows into the battery.
• During AC coupling, current is displayed and the charge LED flashes.
3. Changed criteria for exiting Peak Load Shaving to 2V above the Low Battery
Cut-Out (LBCO) voltage, and recharging while in Grid Support state to 1V
above the LBCO voltage. Previously, the unit would stay in Peak Load Shaving
until the DC Under Voltage Fault (F48) is triggered which would require a
manual clear fault.
4. AC output voltage and operating frequency (50Hz or 60Hz) are now
configurable via Xantrex XWConfig and Xantrex XWConfigPro.
5. Moved Sell Enable/Disable parameter to non-volatile memory so that its value
is kept after power off.
6. Modified multi-unit AC qualification so that the master temporarily changes its
preferred AC source to allow transfer to the other source if all system units
have the potential to qualify the other source and one or more units cannot
qualify the preferred source.
7. Addressed an issue where an overloaded 3 phase system could cause cross
talk on the other side of an open relay. This phantom signal was detected and
misinterpreted as a real signal. When this signal was analyzed the system
would interpret it as an AC source that was mis-wired (phase B where phase C
should have been). This misinterpretation causes the unit to issue a F70, or a
phase configuration fault. To fix this problem, the code that caused the phase
configuration fault was adjusted to determine if the signal was real, by
ensuring that its magnitude was greater than the AC qualification threshold.
8. Changed F69 (Sync fail) to be auto-escalating. An auto escalating fault is a
hybrid fault. It acts like an automatic fault until a certain number of faults are
cleared within a certain period of time. If the fault is occurring and clearing
often enough, the fault behavior changes and the unit turns off until the user
fixes the problem. An advanced user can query any fault or warning on the
system to determine how that fault table is configured.
9. Fixed bug with the equalization functionality. Ensured that this functionality
was blocked in the case that the user had disabled the charger.
10. Fixed multi-unit load staggering problem, so that only one slave unit turns on
when there is a load that exceeds 60% of the rated load. Before, all slave units
would turn on but the extra unit eventually turns off.
11. Changed warning 70 into fault 70 (phase configuration fault).
12. Eliminated fault, warning and event log entries with "Time N/A" stamp.
(166 strony)
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