Siemens SINAMICS G130 Operating Instructions Manual page 431

Exceptions when write protection is active
The following functions or adjustable parameters are excluded from the write protection:
● Changing the access level (p0003)
● Commissioning the parameter filter (p0009)
● Module detection via LED (p0124, p0144, p0154)
● Resetting parameters (p0972, p0976)
● Saving parameters (p0977)
● Acknowledge a fault (p2102, p3981)
● RTC time stamp, set time, synchronization (p3100, p3101, p3103)
● Master control mode selection (p3985)
● Trace (p 4700ff.)
● Function generator (p4800ff.)
● Activating/deactivating write protection (p7761)
● Flashing component (p9210, p9211)
Note
List of the exceptions for activated write protection
A list of the adjustable parameters which, in spite of the write protection, can be changed is
provided in the List Manual.
The list has the designation "WRITE_NO_LOCK".
Write protection for multi-master fieldbus systems
For fieldbus systems (e.g. CAN bus), which can be operated as multi-master bus systems,
when write protection is activated, all setting parameters can be accessed.
For these bus systems, parameter p7762 can be used to set the behavior when write
protection is activated:
● p7762 = 0: Write access independent of p7761
● p7762 = 1: Write access dependent on p7761
Parameter
• r7760
• p7761
• p7762
Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A
Write protection/know-how protection status
Write protection
Write protection multi-master fieldbus system access behavior
Functions, monitoring, and protective functions
9.2 Drive functions
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