Siemens 7LF4 521-0 Instructions De Service page 13

Hour counter
Displays the total relay ON time, (0 to 65535 h) and the date of the last reset.
Random function
Function to simulate presence.
Function active: the programmed switching cycles are shifted at random within the range of ± 15 minutes.
Pincode
Expert mode
Some additional functions are available in Expert mode:
• Power grid synchronisation to improve the accuracy
• Cycle function
Note: Upon switching from ACTIVE to PASSIVE the additional menu items are hidden again and all the Expert mode settings are cancelled.
After re-activating, Expert mode will operate again with the basic settings.
PIN CODE active: The menus of the time switch
will not be accessible unless the PIN CODE has
been entered. When the pin code is active,
access to the button and key functions is
disabled 1 minute after the last button press.
PIN free access can be re-enabled by selecting
PASSIVE or by resetting the device.
2514264121-02
3ZW1012-7LF45-5AA0
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