Siemens SINAMICS G120XA - Time Switch (DTC); Principle of Operation of the Time Switch (DTC); Example of the Response of the Time Switch.; Settings for the Example with DTC1

6.5.5 Time switch (DTC)
The "time switch" (DTC) function, along with the real-time clock in the converter, offers the
option of controlling when signals are switched on and off.
Examples:
● Switching temperature control from day to night mode.
● Switching a process control from weekday to weekend.
Principle of operation of the time switch (DTC)
The converter has three independently adjustable time switches. The time switch output can be
interconnected with every binector input of your converter, e.g. with a digital output or a
technology controller's enable signal.
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Figure 6-54 Example of the response of the time switch.
Settings for the example with DTC1
● Enable parameterization of the DTC: p8409 = 0.
As long as the parameterization of the DTC is enabled, the converter holds the output of all
three DTC (r84x3, x = 1, 2, 3; r84x3.0 normal, r84x3.1 inverted status message) at LOW.
● Activate/deactivate the weekday
- p8410[0] = 0 Monday
- p8410[1] = 1 Tuesday
- p8410[2] = 1 Wednesday
- p8410[3] = 0 Thursday
- p8410[4] = 1 Friday
- p8410[5] = 1 Saturday
- p8410[6] = 0 Sunday
● Setting switching times:
– ON: p8411[0] = 20 (hh), p8411[1] = 0 (MM)
– OFF: p8412[0] = 10 (hh), p4812[1] = 0 (MM)
● Enable the setting: p8409 = 1.
The converter re-enables the DTC output.
Further information is provided in the parameter list.
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Advanced commissioning
6.5 Technology controller
SINAMICS G120XA converter
272 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB