SMA SC 500CP-US-10 600V - Manual (Page 27)

SMA America, LLC 3 Product Description
Operating Manual SCCP-US-BE-US_en-52 27
3.2.4 Touch Display
Different kinds of inverter data can be viewed on the touch display. Settings such as language, time and brightness can
be set, but inverter parameters cannot be set from the touch display.
The display area is activated by touching the touch display. Tapping the symbols on the touch display activates the
corresponding functions. If the touch display is not touched for five minutes, it will shut off.
Grid monitoring The inverter is in the "Grid monitoring" operating state. Waiting for valid AC grid
appears in the touch display.
The grid limits will be monitored continuously from now on. If a grid fault does not occur
during the grid monitoring time, the AC contactor closes and the inverter switches to the
"Grid monitoring time reached" operating state.
If the grid limits are exceeded during the monitoring time, the inverter will restart "Grid
monitoring".
With the option "Q at Night", the inverter switches to the "Q at Night" operating state if the
time specified in the parameter PvStrT has elapsed and the start voltage PvVtgStrLevMin
has not been reached (see Section 8.3 "Q at Night", page 65).
Grid monitoring time
reached
The inverter is in the "Grid monitoring time reached" operating state. Waiting for PV
voltage or Waiting for electric utility company appears on the touch display.
If the input voltage V
PV
exceeds the start voltage PvVtgStrLevMin, the inverter waits until
the time specified in the PvStrT parameter elapses. If the input voltage V
PV
does not fall
below the start voltage PvVtgStrLevMin during this time, the inverter checks whether the
utility grid is available. If a valid utility grid is available, the inverter switches to the operating
state "Startup".
The start voltage PvVtgStrLevMin must be adjusted to conform with the PV array
connected to the inverter.
Startup The inverter is in the "Startup" operating state. Operation appears in the touch display.
The inverter moves to its initial operating point and begins the grid feed-in process.
MPP load operation In the MPP operating state, the inverter feeds power into the utility grid and operates
permanently at the maximum power point (MPP). Operation and the rate of power feed-in
are shown in the touch display.
If the measured power P
PV
during the time interval PvPwrMinT is less than the minimum
feed-in voltage PvPwrMin or the key switch is set to Stop, the inverter switches to the
"Shutdown" operating state.
With the order option "Q at Night", the inverter switches to the operating state "Q at Night"
if the measured power P
PV
during the time interval PvPwrMinT is less than the minimum
feed-in power PvPwrMin (see Section 8.3 "Q at Night", page 65).
Shutdown The inverter is in the "Shutdown" operating state. Operation appears in the touch display.
If the key switch is set to Stop, the inverter switches to the "Stop" operating state.
The AC contactor and the DC switching device open automatically.
If the inverter shuts down because the feed-in conditions are no longer met,
the inverter switches to the "Grid monitoring" operating state.
Fault If a disturbance occurs during operation, the inverter switches off and displays Fault and
the disturbance in the touch display (see Section 11 "Troubleshooting", page 77).
Designation Description