Write access protection
Optionally a write access protection can be installed for the inverter parameters.
Write access protection via network is not restricted. Irrespective of the write access protection that is currently set, a higher-level controller, OPC-UA server, or any other communication partner connected to the inverter is always provided with full read/write access to all parameters of the inverter.
After activating the write access protection, you have to enter a valid PIN to remove the write access protection. Note down the defined PIN(s) and keep this information in a safe place! If you lose the PIN(s), the inverter can only be disabled by resetting it to the delivery status. This means, all parameter settings made by the user get lost! 
Reset parameters to default
Reset parameters to default Details
Usually the write access protection function is implemented by the engineer/OEM , for example to protect the inverter against incorrect parameterization by non-authorised persons. For diagnostic purposes, a read access to all parameters is always possible.
The write access protection allows for the following configurations:
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Full write access
–
Write access only to favorites or (when knowing PIN1) to all parameters
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No write access or (when knowing PIN2) full write access
–
No write access or (when knowing PIN1) write access only to favorites or (when knowing PIN2) to all parameters
The following table compares the four possible configurations:
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PIN1 setting
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PIN2 setting
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Log-in
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Status display after log-in
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Active write access protection (via keypad/»EASY Starter«)
|
|
0
|
0
|
-
|
0
|
No access protection configured.
|
|
> 0
|
0
|
0 or wrong PIN
|
2
|
Write access only possible to favorites.
|
|
Correct PIN1
|
0
|
Write access to all parameters possible.
|
||
|
0
|
> 0
|
0 or wrong PIN
|
1
|
No write access.
|
|
Correct PIN2
|
0
|
Write access to all parameters possible.
|
||
|
> 0
|
> 0
|
0 or wrong PIN
|
1
|
No write access.
|
|
Correct PIN1
|
2
|
Write access only possible to favorites.
|
||
|
Correct PIN2
|
0
|
Write access to all parameters possible.
|
||
|
If PIN1 and PIN2 are set identically, a write access to all parameters is possible after the PIN has been entered correctly.
|
||||
Notes:
–
The access protection is realised by the keypad and engineering tools as "clients" themselves based on the current protection status 0x2040 (P197.00).
More details on how to configure the write access protection with the respective client can be found in the following subchapters:
Parameter