7.15 Setting a customized key number
To avoid that unauthorized personnel modify functions and parameters of the controller, the
default key number can be replaced with an individual key number.
Choose your custom key number between 0100 and 1900.
Proceed as follows:
Switch to configuration and parameter level. Display shows:
0 0 0 0
q
Set key number 1995.
Confirm key number.
q
Set valid key number.
Confirm key number. Key number blinks.
q
Set desired custom key number.
Confirm custom key number.
This new key number is now valid.
EB 5575 EN 89
System-wide functions