Contrast Adjustment; Random Function - Siemens Profi 7LF4 522-0 Operating Instructions Manual

Modes
• Auto - Automatic operation
• Constant ON
• Constant OFF
• Extra
The switch status imposed by the program is inverted (manual override).
With the next effective switch command, the time switch resumes
control of on/off switching.

Contrast adjustment

1 h-Test
When this function is activated, the outputs are switched on for one hour.
After one hour, the time switch returns automatically to the programmed mode.

Random function

Function to simulate presence.
Function active: the programmed switching cycles are shifted at random within the range of ± 15 minutes.
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3ZW1012-7LF45-4AA0
Reset
Warning!
The memory will be cleared,
and all set data will be lost.
Hold down for more than 3 seconds and at
the same time press and release
The language, time, date, summertime/
wintertime and switching times will have to be
reentered.
.