ABB AC 900F Mounting And Installation Instructions Manual page 114

Controller menu
F2 - Security
Select the desired function using the F1 or F2 function key.
Access to the controller Webserver and Telnet can be blocked by the configuration.
This setting can only be entered in Freelance Engineering and not on the display
unit.
AC 900F Parameters > CPU/Security > Security > Webserver disabled or Telnet
disabled
F1 function: Change PIN
By entering a PIN, access to the Controller menu and the use of the functions
included in this menu by unauthorized persons is excluded. The same applies to the
functions of the Boot Configuration menu.
Enter a four-digit PIN using the arrow keys. Enter the PIN once again to confirm it.
The lock symbol at the right top of the start menu indicates an activated PIN, i.e. a
protected controller.
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Controller security.png
Enter PIN.png
Section 8 Service
M&I – AC 900F Controller