Becker Centronic TimeControl TC511 Assembly And Operating Instructions Manual page 42

Assembly and Operating Instructions
SWITCHING TIME
Automatic switching times for roller shutters and venetian blinds to be raised
and lowered.
Programming will not take effect if the sign: --:-- is showing on your display.
(--:-- is located between 23.59 and 00:00).
OFFSET
An additional switching time t can be programmed using the OFFSET menu.
This depends on the PROG 1 switching time t (max. +/- 240 mins.).
For example: astro time t: 20:00
Offset t: +60 mins.
The roller shutter moves to the intermediate position at 20.00 and to the lower
end limit at 21.00.
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