IDEC SmartRelay Manual
155
IDEC SmartRelay functions
4.4 Special functions list - SF
4.4.11 Seven-day time switch
Short description
The seven-day time switch controls an output by means of a configurable on/off date. The
function supports any combination of weekdays. ou select the active weekdays by hiding the
inactive days.
Timing diagram (three examples)
Functional description
Each seven-day time switch has three cams for you to configure a time hysteresis. ou
specify the on- and off-times at the Cam parameters. The seven-day time switch sets the
output at a certain on-time if you have not set it, the seven-day time switch resets the output
at a certain off-time if you configure an off-time, or at the end of the cycle if you specify a
pulse output.
ou will cause a conflict if you set overlapping on- and off-times the earliest on- and off-
times take priority. Here is an example:
In this example, the work time is 1:00h to 1:40h.
The status of all three cams determines the switching state of the seven-day time switch.
Symbol in
IDEC SmartRelay
iring Description
Cam parameters
1, 2 and 3
At the Cam parameters, you set the on- and off-times of the
seven-day time switch for each C
am switch. Here you also
configure the days and the time-of-day.
ou can also specify whether the timer pulses on for one cycle
when activated and then reset. The pulse setting applies to all
three cams.
Output IDEC SmartRelay sets when actuating the configured cam.
Cam On-time Off-time
1 1:00h 2:00h
2 1:10h 1:50h
3 1:20h 1:40h
4
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4
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