Write Protection - Siemens SINAMICS G150 Operating Instructions Manual

9.2.20

Write protection

Description
Write protection is used to prevent setting parameters from being accidentally changed. No
password is required for write protection.
Activating write protection
Write protection can be activated as follows:
● With STARTER in the online mode, after selecting the drive unit via Project > Write
protection drive unit > Activate.
● Using the AOP30 operator panel via p7761 = 1.
All setting parameters involved with write protection can no longer be changed.
In STARTER all write-protected setting parameters have a gray background in the expert list
and in the operating screen forms.
If, in AOP30, an attempt is made to change a write-protected setting parameter, then this is
rejected with the corresponding error message.
Write requests from write-protected setting parameters via communication are treated in
different ways:
● Parameter changes involving class 1 controllers (controls, e.g. SIMATIC) are executed.
● Parameter changes of class 2 controllers (engineering or commissioning total, e.g.
STARTER) are not executed.
Deactivating write protection
Write protection can be deactivated as follows:
● With STARTER in the online mode, after selecting the drive unit via Project > Write
protection drive unit > Deactivate.
● Using the AOP30 operator panel via p7761 = 0.
Write protection status
The status of write protection can be displayed using parameter r7760.0:
● r7760.0 = 0: Write protection is not active
● r7760.0 = 1: Write protection is active
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
Functions, monitoring, and protective functions
9.2 Drive functions
529