Santerno SUNWAY TG1200 1000V TE OD, Руководство по установке

Страница: 107 / 139

INSTALLATION GUIDE MODULAR SUNWAY TG
TE OD
Rev. 03
– 01/06/2018
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Check the DC voltage value read by the inverter, Measures Menu (please refer to the Programming
Guide).
•
Check that the set P020 value is compatible with the configuration of the strings (please refer to the
Programming Guide).
11.2.4. The GRID OK LED is OFF
•
Check if the grid AC switch is closed.
•
Check the AC voltage value read by the inverter, Measures Menu (please refer to the Programming
Guide).
•
Check the value of the C020 and C021 grid parameters (please refer to the Programming Guide).
•
Check the state of the external Interface Protection (AC module, terminals X6 17-20, visible on M032
MDI6).
11.2.5. Isolation loss detected
•
Check if the inverter disconnect switch is closed.
•
If the Earthed optional is not installed, with the DC disconnect switch closed, check if voltages are
balanced in relation to earth (max. allowable margin = 5%).
•
Open the DC disconnect switch.
•
With the DC disconnect switch open, check if voltages are balanced in relation to earth (max.
allowable margin = 10%) and that neither is near 0V.
•
If the Earthed optional is installed, check the state of fuses 11F1 on each DC module.
•
Check the status of the digital inputs, M032 measure (please refer to the Programming Guide).
11.3. Malfunctioning during operation
11.3.1. Isolation loss detected
Please refer to section 11.2.
11.3.2. The inverter does not produce the power expected
•
Check that the air inlet filters are clean.
•
Check that disconnect switches are closed on all String Boxes.
•
Check MPPT is enabled (MPPT LED = ON, please refer to the Programming Guide).
•
Check the P020 value (please refer to the Programming Guide).
•
In the event of overheating, the inverter protects itself by derating its output power. Check the
temperature measurements (please refer to the Programming Guide).
•
Check that all its input fuses are intact.
11.3.1. The inverter trips
Alarms trip when malfunctioning occurs that may affect the inverter integrity. Please refer to the
Programming Guide for details.
•
Press RESET from the display/keypad to reset the alarms tripped. If the cause responsible for the
alarm has disappeared, the alarm tripped is reset and the START command is to be given again.
NOTE
The alarms that are automatically reset (see the Autoreset Menu in the Programming Guide) do
not clear the RUN status from the inverter memory, hence once that the causes responsible for
the alarms tripped have been solved, they will be automatically reset and the inverter will still
have the RUN command active.