Siemens SINAMICS G120P, Operating Instructions Manual

Page: 333 / 496

Operation
6.10 Operation with the IOP
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
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6.10.4.6 Write Protection
Introduction
The write protection function is provided to prevent inadvertent changes of the settings on
the inverter. No password is required for activating the write protection function.
A list of the adjustable parameters that can be changed in spite of activated write protection
can be found in the List Manual.
The list has the designation "WRITE_NO_LOCK".
Note
Fieldbus communication using CAN, BACnet and MODBUS
When these fieldbus communication protocols are used, the factory settings for parameters
can be changed even when the write protection function is active. To ensure that the write
protection function is active for communication via fieldbus, if required, parameter p7762
must be set to 1.
Activate/deactivate write protection function
Proceed as follows to activate or deactivate the write protection function:
1. Select "Menu" on the main screen.
2. Select the "Parameters" entry in the menu.