Schneider Electric Xantrex XW Manual de usuario descargar pdf (Pagina 17)

Software Release Notes

975-0604-01-01 Revision A 17

3. Changed frequency hysteresis from 2hz to 0.5hz

4. Changed minimum breaker size to 3A.

5. Implemented AC coupling which is defined as:

•In invert mode.

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

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

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

configurable via Xantrex XWConfig (PGN AcCfg).

7. 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.

8. 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.

9. Changed the rate of updating Vdc value during sell mode to 2Hz so that the

user should see a more stable power reading on the front panel.

10. Changed control loop update rate to 30Hz instead of 120Hz before to solve

the missing charge cycle problem. (4024 was later changed back still using

120Hz update rate).

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.

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 ... 12 13 14 15 16 17 18 19 20 21 22

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Schneider Electric Xantrex XW Manual de usuario Pagina 17

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