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46
737.096 | 11.37
5
Operating and fault display
After the device is switched on, the system starts with a series of test procedures
which take a few seconds. When the output of the solar modules is high enough,
the inverter will switch to ‘active mode’. When there is little irradiation it may be
that the solar modules do not produce enough power to feed the power grid. The
device then enters the standby mode.
The front of the control unit is equipped with a two-colour LED which shows the
operating status of the inverter. The LED shows the following operating states:
LED status System status
Explanation, cross-references
Green
Active mode – nor-
mal operation
The system is running in normal operating
mode and feeds the grid.
Green
flashing
Standby mode
The irradiation is not sufficient for feeding
the grid.
Red-green
flashing
Information
A fault is present but the inverter is still ca-
pable of full performance.
Red
flashing
Warning:
Limited mode – par-
tial fault
The inverter may no longer be capable of
full performance.
Contact your installer.
No country set
Select a country at the optional
StecaGrid Vision remote display or
contact
your installer.
Red
Modules covered
No energy is being supplied because the
modules are covered, e.g. by snow. If the
snow cannot be removed then you must
wait until it has sufficiently melted.
DC switch is off
Turn the DC switch to on.
Error
The inverter has a fault. No energy is being
supplied.
Contact your installer.
Off
Off
There is no input voltage (nighttime opera-
tion) or no mains voltage.
6 Troubleshooting
6.1 Fault messages
In addition to indicating the operating status the LEDs are also used to indicate
faults.
In the case of a fault (red LED display either constant or flashing) please notify
your installer immediately.
If a StecaGrid Vision display unit is used with the system then it can be used
for displaying error messages. Details on the error messages are provided in the
StecaGrid Vision manual.
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