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Operating States
152379 Rev C
2–5
Shutdown
The line interface controller is idle. The CCU2 monitors the status of the PV array
and utility grid, waiting in standby until the PV array is available to produce
power to the grid.
Fault
The PV100S has encountered a fault condition. When this happens, regardless of
the PV100S state of operation, the PV100S will stop processing all power and
execute an orderly system shutdown. A description of the fault and fault code will
appear on the operator interface LCD. The Fault state may be cleared from the
keypad once the cause of the fault has been corrected. See Chapter 4,
“Troubleshooting” for a complete description of all fault codes.
Manual Current
This operating state is provided to evaluate the existing PV array V-I
characteristics. The PV controller regulates a constant amount of PV current as
commanded by the user from the operator interface keypad, up to the PV current
limit of the PV100S. If the user commands more PV current than is available, the
DC bus voltage will drop below the minimum bus voltage level and the PV100S
will enter Shutdown mode.
Matrix Test
This operating state is provided to verify proper operation of the matrix and
associated control electronics. There is no power transfer between the PV and
utility in this mode. The
ON
/
OFF
switch must be in the
OFF
position for the
PV100S to enter this state.
Automatic Sleep Test
Toward the end of every solar day, the PV100S automatically determines when to
stop producing power dependent upon the output power of the inverter. As the net
output power of the PV100S nears zero, a timer is started to allow the inverter to
ride through any brief irradiance reductions.
Summary of Contents for PV100S-208
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