Siemens SINAMICS S150 NEMA, Operating Instructions Manual

Page: 566 / 862

Functions, monitoring and protective functions
9.3 Drive functions
Enclosed Drives
564
Operating Instructions, 12/2018, A5E36652151A
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)
● Identification and maintenance (p8806ff.)
● 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
Parameters
• r7760
Write protection/know-how protection status
• p7761
Write protection
• p7762
Write protection multi-master fieldbus system access behavior