Schneider Electric Xantrex XW Instrukcja Użytkownika Pobierz pdf (Strona 12)

Software Release Notes

12 975-0604-01-01 Revision A

5. Fixed problem where system would lock up after multiple adjustments of

support amps from 0 to 10 to 0 during Peak Load Shaving and Generator

Support.

6. Moved Sell Enable/Disable parameter to non-volatile memory so that its value

is kept after power off.

7. Changed frequency hysteresis from 2hz to 0.5hz.

8. Implemented AC coupling which is defined as:

• In invert mode.

• Power (more than 300W) flows into to the battery.

• During AC coupling, current is displayed and the charge LED flashes.

9. AC output voltage and operating frequency (50Hz or 60Hz) are now

configurable via Xantrex XWConfig and Xantrex XWConfigPro.

10. Changed criteria for exiting Peak Load Shaving to 2V above the Low Battery

Cut-Out (LBCO) voltage. The unit exits Grid Support state when battery is 1V

above the LBCO voltage, and re-charge. Previously, the unit would stay in

Peak Load Shaving until the DC Under Voltage Fault (F48) was triggered

which would require a manual clear fault.

11. Changed the way to process SellEn command from SCP: Only process the

enable command when it is more than 15s from the time when the last disable

command was issued. This is a workaround of the issue where after enabling

Sell on SCP, the unit is not Selling.

12. Introduced a new Advance Feature: "Sell Dly 40s" where grid-tie entry/exit delay

can be changed from 20s to 40s. An exception of the delay timer is when Vbatt

is 2V above Vgs, the time will be overridden and unit will enter sell immediately.

13. Updated grid/gen entry/exit/regulation voltage offsets in respect of grid/gen

support voltage

14. Implemented new charge algorithm. The differences from the previous

implementation are:

a) Bulk exiting voltage is Vabs, and exiting timer is 1s (range 1s-1hr, can be set

via XDT). Absorption begins with a 1-hr boost stage where battery voltage is

regulated at Vbulk. Boost stage applies only to the custom battery type.

b) Absorption exiting current is battery Ahr/50.

c) The battery capacity affects the charging current calculation in a way that

small battery capacity (less than 100Ahr on Xantrex XW6048) will limit the

charging current to the capacity level.

d) 0Ahr battery capacity is deemed that there is no absorption exit current

criteria and absorption only exit when absorption timer (default 3hrs,

range 1min-8hr) expires. Setting the battery capacity to zero will reset the

charging current to its default values.

Xantrex XW

Standalone

MPPT Auto-

tracking

Grid/Gen Support entry voltage (V) 0 -1

Grid/Gen Support regulation voltage (V) 0 -1

Grid/Gen Support exit voltage (V) -0.5 -1.5

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 21 22

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