7.2.1 Extending the exception list for know-how protection
In the factory setting, the exception list only includes the password for know-how protection.
Before activating know-how protection, you can additionally enter the adjustable parameters
in the exception list, which must still be able to be read and changed by end users – even if
know-how protection has been activated.
You do not need to change the exception list, if, with exception of the password, you do not
require additional adjustable parameters in the exception list.
Absolute know-how protection
If you remove password p7766 from the exception list, it is no longer possible to enter or change
the password for know-how protection.
You must reset the converter to the factory settings in order to be able to gain access to
the converter adjustable parameters. When restoring the factory settings, you lose what you
have congured in the converter, and you must recommission the converter.
Parameter
Parameter Description Factory setting
p7763 KHP OEM exception list, number of indices for p7764 1
p7764[0…p7763] KHP OEM exception list
p7766 is the password for know-how protection
[0] 7766
[1...499] 0
Protecting the converter settings
7.2Know-how protection
SINAMICS G120C Converters
180 Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
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