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Standard function blocks
246
02/16 MN05013001Z EN
HW, seven-day time
switch
easySafety is equipped with a real-time clock which you can
use in the standard circuit diagram as a 7-day time switch
and a year time switch.
easySafety allows the use of up to 16 7-day time switches.
Function block
Figure 104: Seven-day time switch
a
Parameter HW..DY1: Day 1, start of period.
b
Parameter HW..DY2: Day 2, end of period.
c
Parameter HW..ON: On time.
d
Parameter HW..OFF: Off time.
e
Contact HW..Q1: Closes in the defined period.
h
The procedure for setting the time is described under
section “Setting date and time” on page 584.
h
Each time switch function block provides four channels
which can each be assigned with a time for on and off
switching. The channels are set via the parameter display.
The timer has a back-up battery. Although the time switch
relays will no longer switch. When easy is in a de-
energized state, the timer contacts remain open.
Information on the battery back-up time are provided on
page 666.
>DY1
Q1
HW...
7 day time switch
>DY2
>ON
>OFF
b
a
c
d
e
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