The Info Menu Item; Lt Status; Grid Status; Rcmu - Fronius Symo 10.0-3 208-240 Instructions De Service

The INFO menu item

Measurement val- PV Iso.
ues Insulation resistance for the photovoltaic system
U PV 1/U PV 2
Current DC voltage on the terminals, even if inverter is not feeding any energy (from 1st or
2nd MPP tracker)
GVDPR
Grid voltage-dependent power reduction
Fan #1
Target output of fan in percent

LT Status

The status display of the last error that occurred in the inverter can be shown.
IMPORTANT! Status codes 306 (Power low) and 307 (DC low) appear naturally every
morning and evening due to low solar irradiance. These status codes are not the result of
a fault.
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Grid Status

The last 5 grid errors that occurred can be displayed:
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RCMU

RCMU = Residual Current Monitoring Unit
The inverter is equipped with an RCMU according to Austrian standard ÖVE/ÖNORM E
8001-4-712.
It monitors residual currents from the solar module to the inverter grid connection and dis-
connects the inverter from the grid when an improper residual current is detected.
Additional residual current protection may be needed depending on the installation's pro-
tection system or the requirements of the utility company. In this case, use a type B residual
current circuit breaker with a release current of at least 100 mA.
Device Informa- Used to display settings relevant to a power supply company. The displayed values de-
tion pend on the respective country setup or device-specific inverter settings.
Display range
38
After pressing the "Enter" key, the power stage set status and the last error that oc-
curred are displayed
Use the "up" and "down" keys to scroll through the list
Press the "Back" key to exit the status and error list
After pressing the "Enter" key, the last 5 grid errors that occurred are displayed
Use the "up" and "down" keys to scroll through the list
Press the "Back" key to exit the grid error display
General/Country-specific setting/MPP tracker/Grid monitoring/
Grid voltage limits/Grid frequency limits/Q-mode/AC output limit