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4. Change of Functional Safety Settings
4. Change of Functional Safety Settings
4.1. Functional Safety Settings
Change of functional safety settings requires approval from the DNO.
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The functional safety settings are defined by selection of grid code during the installation sequence. Later, change of functional safety settings may be required due to external conditions,
for example persistent instability problems due to a weak AC grid.
The following settings can be changed with a level 2 password, either via the display or via the
Web Server:
•
Grid code
•
10-minute average of grid voltage magnitude
•
ROCOF (rate of change of frequency)
To change all other settings, access is via the Web Server only. A change to 10-minute average
of grid voltage magnitude or ROCOF settings will automatically alter the grid code to ‘Custom’.
4.2. Procedure for Change of Settings
Follow the procedure described below for each change of grid code, either directly or via
changes to other functional safety settings. For more information, refer to the section International Inverter.
Procedure for PV plant owner:
1.
Determine the desired grid code setting. The person responsible for the decision to
change the grid code accepts full responsibility for any future conflicts.
2.
Order the change of setting with the authorised technician.
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