Siemens SINAMICS G120D - Protection of the Settings from Unauthorized Changes; Resetting the Safety Function Parameters to the Factory Setting

Setting functions
8.9 Safe Torque Off (STO) safety function
Converter with control units CU250D-2
240 Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
8.9.3.2
Protection of the settings from unauthorized changes
The safety functions are protected against unauthorized changes by a password.
Table 8- 31 Parameter
No.
Description
p9761
Entering a password
(factory setting 0000 hex)
Permissible passwords lie in the range 1 … FFFF FFFF.
p9762
New password
p9763
Confirm password
8.9.3.3
Resetting the safety function parameters to the factory setting
Procedure
To reset the safety function settings to the factory setting without changing the standard
settings, proceed as follows:
1. Go online with STARTER
2. Open the screen form for the safety functions
①.
3. Press the button to restore the factory settings
②.
4. Enter the password,for the safety functions.
5. Confirm saving parameters (RAM to ROM).
6. Go offline with STARTER .
7. Switch off the inverter supply voltage.
8. Wait until all LED on the inverter go dark. Now switch on the inverter supply voltage again
(power on reset).
You have restored the safety functions in the inverter to the factory settings.